almost fully replaced hooking lib

1 files changed, 7832 insertions, 7832 deletions

diff --git a/NorthstarDLL/include/httplib.h b/NorthstarDLL/include/httplib.h
index 2b52f0fc..9d38d657 100644
--- a/NorthstarDLL/include/httplib.h
+++ b/NorthstarDLL/include/httplib.h
@@ -1,7832 +1,7832 @@
-//
-//  httplib.h
-//
-//  Copyright (c) 2021 Yuji Hirose. All rights reserved.
-//  MIT License
-//
-
-#ifndef CPPHTTPLIB_HTTPLIB_H
-#define CPPHTTPLIB_HTTPLIB_H
-
-/*
- * Configuration
- */
-
-#ifndef CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND
-#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5
-#endif
-
-#ifndef CPPHTTPLIB_KEEPALIVE_MAX_COUNT
-#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5
-#endif
-
-#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND
-#define CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND 300
-#endif
-
-#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND
-#define CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND 0
-#endif
-
-#ifndef CPPHTTPLIB_READ_TIMEOUT_SECOND
-#define CPPHTTPLIB_READ_TIMEOUT_SECOND 5
-#endif
-
-#ifndef CPPHTTPLIB_READ_TIMEOUT_USECOND
-#define CPPHTTPLIB_READ_TIMEOUT_USECOND 0
-#endif
-
-#ifndef CPPHTTPLIB_WRITE_TIMEOUT_SECOND
-#define CPPHTTPLIB_WRITE_TIMEOUT_SECOND 5
-#endif
-
-#ifndef CPPHTTPLIB_WRITE_TIMEOUT_USECOND
-#define CPPHTTPLIB_WRITE_TIMEOUT_USECOND 0
-#endif
-
-#ifndef CPPHTTPLIB_IDLE_INTERVAL_SECOND
-#define CPPHTTPLIB_IDLE_INTERVAL_SECOND 0
-#endif
-
-#ifndef CPPHTTPLIB_IDLE_INTERVAL_USECOND
-#ifdef _WIN32
-#define CPPHTTPLIB_IDLE_INTERVAL_USECOND 10000
-#else
-#define CPPHTTPLIB_IDLE_INTERVAL_USECOND 0
-#endif
-#endif
-
-#ifndef CPPHTTPLIB_REQUEST_URI_MAX_LENGTH
-#define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192
-#endif
-
-#ifndef CPPHTTPLIB_REDIRECT_MAX_COUNT
-#define CPPHTTPLIB_REDIRECT_MAX_COUNT 20
-#endif
-
-#ifndef CPPHTTPLIB_PAYLOAD_MAX_LENGTH
-#define CPPHTTPLIB_PAYLOAD_MAX_LENGTH ((std::numeric_limits<size_t>::max)())
-#endif
-
-#ifndef CPPHTTPLIB_TCP_NODELAY
-#define CPPHTTPLIB_TCP_NODELAY false
-#endif
-
-#ifndef CPPHTTPLIB_RECV_BUFSIZ
-#define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u)
-#endif
-
-#ifndef CPPHTTPLIB_COMPRESSION_BUFSIZ
-#define CPPHTTPLIB_COMPRESSION_BUFSIZ size_t(16384u)
-#endif
-
-#ifndef CPPHTTPLIB_THREAD_POOL_COUNT
-#define CPPHTTPLIB_THREAD_POOL_COUNT                                           \
-  ((std::max)(8u, std::thread::hardware_concurrency() > 0                      \
-                      ? std::thread::hardware_concurrency() - 1                \
-                      : 0))
-#endif
-
-#ifndef CPPHTTPLIB_RECV_FLAGS
-#define CPPHTTPLIB_RECV_FLAGS 0
-#endif
-
-#ifndef CPPHTTPLIB_SEND_FLAGS
-#define CPPHTTPLIB_SEND_FLAGS 0
-#endif
-
-/*
- * Headers
- */
-
-#ifdef _WIN32
-#ifndef _CRT_SECURE_NO_WARNINGS
-#define _CRT_SECURE_NO_WARNINGS
-#endif //_CRT_SECURE_NO_WARNINGS
-
-#ifndef _CRT_NONSTDC_NO_DEPRECATE
-#define _CRT_NONSTDC_NO_DEPRECATE
-#endif //_CRT_NONSTDC_NO_DEPRECATE
-
-#if defined(_MSC_VER)
-#ifdef _WIN64
-using ssize_t = __int64;
-#else
-using ssize_t = int;
-#endif
-
-#if _MSC_VER < 1900
-#define snprintf _snprintf_s
-#endif
-#endif // _MSC_VER
-
-#ifndef S_ISREG
-#define S_ISREG(m) (((m)&S_IFREG) == S_IFREG)
-#endif // S_ISREG
-
-#ifndef S_ISDIR
-#define S_ISDIR(m) (((m)&S_IFDIR) == S_IFDIR)
-#endif // S_ISDIR
-
-#ifndef NOMINMAX
-#define NOMINMAX
-#endif // NOMINMAX
-
-#include <io.h>
-#include <winsock2.h>
-
-#include <wincrypt.h>
-#include <ws2tcpip.h>
-
-#ifndef WSA_FLAG_NO_HANDLE_INHERIT
-#define WSA_FLAG_NO_HANDLE_INHERIT 0x80
-#endif
-
-#ifdef _MSC_VER
-#pragma comment(lib, "ws2_32.lib")
-#pragma comment(lib, "crypt32.lib")
-#pragma comment(lib, "cryptui.lib")
-#endif
-
-#ifndef strcasecmp
-#define strcasecmp _stricmp
-#endif // strcasecmp
-
-using socket_t = SOCKET;
-#ifdef CPPHTTPLIB_USE_POLL
-#define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout)
-#endif
-
-#else // not _WIN32
-
-#include <arpa/inet.h>
-#include <cstring>
-#include <ifaddrs.h>
-#include <netdb.h>
-#include <netinet/in.h>
-#ifdef __linux__
-#include <resolv.h>
-#endif
-#include <netinet/tcp.h>
-#ifdef CPPHTTPLIB_USE_POLL
-#include <poll.h>
-#endif
-#include <csignal>
-#include <pthread.h>
-#include <sys/select.h>
-#include <sys/socket.h>
-#include <unistd.h>
-
-using socket_t = int;
-#define INVALID_SOCKET (-1)
-#endif //_WIN32
-
-#include <algorithm>
-#include <array>
-#include <atomic>
-#include <cassert>
-#include <cctype>
-#include <climits>
-#include <condition_variable>
-#include <errno.h>
-#include <fcntl.h>
-#include <fstream>
-#include <functional>
-#include <iomanip>
-#include <iostream>
-#include <list>
-#include <map>
-#include <memory>
-#include <mutex>
-#include <random>
-#include <regex>
-#include <set>
-#include <sstream>
-#include <string>
-#include <sys/stat.h>
-#include <thread>
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-#include <openssl/err.h>
-#include <openssl/md5.h>
-#include <openssl/ssl.h>
-#include <openssl/x509v3.h>
-
-#if defined(_WIN32) && defined(OPENSSL_USE_APPLINK)
-#include <openssl/applink.c>
-#endif
-
-#include <iostream>
-#include <sstream>
-
-#if OPENSSL_VERSION_NUMBER < 0x1010100fL
-#error Sorry, OpenSSL versions prior to 1.1.1 are not supported
-#endif
-
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
-#include <openssl/crypto.h>
-inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) {
-  return M_ASN1_STRING_data(asn1);
-}
-#endif
-#endif
-
-#ifdef CPPHTTPLIB_ZLIB_SUPPORT
-#include <zlib.h>
-#endif
-
-#ifdef CPPHTTPLIB_BROTLI_SUPPORT
-#include <brotli/decode.h>
-#include <brotli/encode.h>
-#endif
-
-/*
- * Declaration
- */
-namespace httplib {
-
-namespace detail {
-
-/*
- * Backport std::make_unique from C++14.
- *
- * NOTE: This code came up with the following stackoverflow post:
- * https://stackoverflow.com/questions/10149840/c-arrays-and-make-unique
- *
- */
-
-template <class T, class... Args>
-typename std::enable_if<!std::is_array<T>::value, std::unique_ptr<T>>::type
-make_unique(Args &&... args) {
-  return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
-}
-
-template <class T>
-typename std::enable_if<std::is_array<T>::value, std::unique_ptr<T>>::type
-make_unique(std::size_t n) {
-  typedef typename std::remove_extent<T>::type RT;
-  return std::unique_ptr<T>(new RT[n]);
-}
-
-struct ci {
-  bool operator()(const std::string &s1, const std::string &s2) const {
-    return std::lexicographical_compare(s1.begin(), s1.end(), s2.begin(),
-                                        s2.end(),
-                                        [](unsigned char c1, unsigned char c2) {
-                                          return ::tolower(c1) < ::tolower(c2);
-                                        });
-  }
-};
-
-} // namespace detail
-
-using Headers = std::multimap<std::string, std::string, detail::ci>;
-
-using Params = std::multimap<std::string, std::string>;
-using Match = std::smatch;
-
-using Progress = std::function<bool(uint64_t current, uint64_t total)>;
-
-struct Response;
-using ResponseHandler = std::function<bool(const Response &response)>;
-
-struct MultipartFormData {
-  std::string name;
-  std::string content;
-  std::string filename;
-  std::string content_type;
-};
-using MultipartFormDataItems = std::vector<MultipartFormData>;
-using MultipartFormDataMap = std::multimap<std::string, MultipartFormData>;
-
-class DataSink {
-public:
-  DataSink() : os(&sb_), sb_(*this) {}
-
-  DataSink(const DataSink &) = delete;
-  DataSink &operator=(const DataSink &) = delete;
-  DataSink(DataSink &&) = delete;
-  DataSink &operator=(DataSink &&) = delete;
-
-  std::function<bool(const char *data, size_t data_len)> write;
-  std::function<void()> done;
-  std::function<bool()> is_writable;
-  std::ostream os;
-
-private:
-  class data_sink_streambuf : public std::streambuf {
-  public:
-    explicit data_sink_streambuf(DataSink &sink) : sink_(sink) {}
-
-  protected:
-    std::streamsize xsputn(const char *s, std::streamsize n) {
-      sink_.write(s, static_cast<size_t>(n));
-      return n;
-    }
-
-  private:
-    DataSink &sink_;
-  };
-
-  data_sink_streambuf sb_;
-};
-
-using ContentProvider =
-    std::function<bool(size_t offset, size_t length, DataSink &sink)>;
-
-using ContentProviderWithoutLength =
-    std::function<bool(size_t offset, DataSink &sink)>;
-
-using ContentProviderResourceReleaser = std::function<void(bool success)>;
-
-using ContentReceiverWithProgress =
-    std::function<bool(const char *data, size_t data_length, uint64_t offset,
-                       uint64_t total_length)>;
-
-using ContentReceiver =
-    std::function<bool(const char *data, size_t data_length)>;
-
-using MultipartContentHeader =
-    std::function<bool(const MultipartFormData &file)>;
-
-class ContentReader {
-public:
-  using Reader = std::function<bool(ContentReceiver receiver)>;
-  using MultipartReader = std::function<bool(MultipartContentHeader header,
-                                             ContentReceiver receiver)>;
-
-  ContentReader(Reader reader, MultipartReader multipart_reader)
-      : reader_(std::move(reader)),
-        multipart_reader_(std::move(multipart_reader)) {}
-
-  bool operator()(MultipartContentHeader header,
-                  ContentReceiver receiver) const {
-    return multipart_reader_(std::move(header), std::move(receiver));
-  }
-
-  bool operator()(ContentReceiver receiver) const {
-    return reader_(std::move(receiver));
-  }
-
-  Reader reader_;
-  MultipartReader multipart_reader_;
-};
-
-using Range = std::pair<ssize_t, ssize_t>;
-using Ranges = std::vector<Range>;
-
-struct Request {
-  std::string method;
-  std::string path;
-  Headers headers;
-  std::string body;
-
-  std::string remote_addr;
-  int remote_port = -1;
-
-  // for server
-  std::string version;
-  std::string target;
-  Params params;
-  MultipartFormDataMap files;
-  Ranges ranges;
-  Match matches;
-
-  // for client
-  ResponseHandler response_handler;
-  ContentReceiverWithProgress content_receiver;
-  Progress progress;
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  const SSL *ssl = nullptr;
-#endif
-
-  bool has_header(const char *key) const;
-  std::string get_header_value(const char *key, size_t id = 0) const;
-  template <typename T>
-  T get_header_value(const char *key, size_t id = 0) const;
-  size_t get_header_value_count(const char *key) const;
-  void set_header(const char *key, const char *val);
-  void set_header(const char *key, const std::string &val);
-
-  bool has_param(const char *key) const;
-  std::string get_param_value(const char *key, size_t id = 0) const;
-  size_t get_param_value_count(const char *key) const;
-
-  bool is_multipart_form_data() const;
-
-  bool has_file(const char *key) const;
-  MultipartFormData get_file_value(const char *key) const;
-
-  // private members...
-  size_t redirect_count_ = CPPHTTPLIB_REDIRECT_MAX_COUNT;
-  size_t content_length_ = 0;
-  ContentProvider content_provider_;
-  bool is_chunked_content_provider_ = false;
-  size_t authorization_count_ = 0;
-};
-
-struct Response {
-  std::string version;
-  int status = -1;
-  std::string reason;
-  Headers headers;
-  std::string body;
-  std::string location; // Redirect location
-
-  bool has_header(const char *key) const;
-  std::string get_header_value(const char *key, size_t id = 0) const;
-  template <typename T>
-  T get_header_value(const char *key, size_t id = 0) const;
-  size_t get_header_value_count(const char *key) const;
-  void set_header(const char *key, const char *val);
-  void set_header(const char *key, const std::string &val);
-
-  void set_redirect(const char *url, int status = 302);
-  void set_redirect(const std::string &url, int status = 302);
-  void set_content(const char *s, size_t n, const char *content_type);
-  void set_content(const std::string &s, const char *content_type);
-
-  void set_content_provider(
-      size_t length, const char *content_type, ContentProvider provider,
-      ContentProviderResourceReleaser resource_releaser = nullptr);
-
-  void set_content_provider(
-      const char *content_type, ContentProviderWithoutLength provider,
-      ContentProviderResourceReleaser resource_releaser = nullptr);
-
-  void set_chunked_content_provider(
-      const char *content_type, ContentProviderWithoutLength provider,
-      ContentProviderResourceReleaser resource_releaser = nullptr);
-
-  Response() = default;
-  Response(const Response &) = default;
-  Response &operator=(const Response &) = default;
-  Response(Response &&) = default;
-  Response &operator=(Response &&) = default;
-  ~Response() {
-    if (content_provider_resource_releaser_) {
-      content_provider_resource_releaser_(content_provider_success_);
-    }
-  }
-
-  // private members...
-  size_t content_length_ = 0;
-  ContentProvider content_provider_;
-  ContentProviderResourceReleaser content_provider_resource_releaser_;
-  bool is_chunked_content_provider_ = false;
-  bool content_provider_success_ = false;
-};
-
-class Stream {
-public:
-  virtual ~Stream() = default;
-
-  virtual bool is_readable() const = 0;
-  virtual bool is_writable() const = 0;
-
-  virtual ssize_t read(char *ptr, size_t size) = 0;
-  virtual ssize_t write(const char *ptr, size_t size) = 0;
-  virtual void get_remote_ip_and_port(std::string &ip, int &port) const = 0;
-  virtual socket_t socket() const = 0;
-
-  template <typename... Args>
-  ssize_t write_format(const char *fmt, const Args &... args);
-  ssize_t write(const char *ptr);
-  ssize_t write(const std::string &s);
-};
-
-class TaskQueue {
-public:
-  TaskQueue() = default;
-  virtual ~TaskQueue() = default;
-
-  virtual void enqueue(std::function<void()> fn) = 0;
-  virtual void shutdown() = 0;
-
-  virtual void on_idle(){};
-};
-
-class ThreadPool : public TaskQueue {
-public:
-  explicit ThreadPool(size_t n) : shutdown_(false) {
-    while (n) {
-      threads_.emplace_back(worker(*this));
-      n--;
-    }
-  }
-
-  ThreadPool(const ThreadPool &) = delete;
-  ~ThreadPool() override = default;
-
-  void enqueue(std::function<void()> fn) override {
-    std::unique_lock<std::mutex> lock(mutex_);
-    jobs_.push_back(std::move(fn));
-    cond_.notify_one();
-  }
-
-  void shutdown() override {
-    // Stop all worker threads...
-    {
-      std::unique_lock<std::mutex> lock(mutex_);
-      shutdown_ = true;
-    }
-
-    cond_.notify_all();
-
-    // Join...
-    for (auto &t : threads_) {
-      t.join();
-    }
-  }
-
-private:
-  struct worker {
-    explicit worker(ThreadPool &pool) : pool_(pool) {}
-
-    void operator()() {
-      for (;;) {
-        std::function<void()> fn;
-        {
-          std::unique_lock<std::mutex> lock(pool_.mutex_);
-
-          pool_.cond_.wait(
-              lock, [&] { return !pool_.jobs_.empty() || pool_.shutdown_; });
-
-          if (pool_.shutdown_ && pool_.jobs_.empty()) { break; }
-
-          fn = pool_.jobs_.front();
-          pool_.jobs_.pop_front();
-        }
-
-        assert(true == static_cast<bool>(fn));
-        fn();
-      }
-    }
-
-    ThreadPool &pool_;
-  };
-  friend struct worker;
-
-  std::vector<std::thread> threads_;
-  std::list<std::function<void()>> jobs_;
-
-  bool shutdown_;
-
-  std::condition_variable cond_;
-  std::mutex mutex_;
-};
-
-using Logger = std::function<void(const Request &, const Response &)>;
-
-using SocketOptions = std::function<void(socket_t sock)>;
-
-inline void default_socket_options(socket_t sock) {
-  int yes = 1;
-#ifdef _WIN32
-  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<char *>(&yes),
-             sizeof(yes));
-  setsockopt(sock, SOL_SOCKET, SO_EXCLUSIVEADDRUSE,
-             reinterpret_cast<char *>(&yes), sizeof(yes));
-#else
-#ifdef SO_REUSEPORT
-  setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, reinterpret_cast<void *>(&yes),
-             sizeof(yes));
-#else
-  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<void *>(&yes),
-             sizeof(yes));
-#endif
-#endif
-}
-
-class Server {
-public:
-  using Handler = std::function<void(const Request &, Response &)>;
-
-  using ExceptionHandler =
-      std::function<void(const Request &, Response &, std::exception &e)>;
-
-  enum class HandlerResponse {
-    Handled,
-    Unhandled,
-  };
-  using HandlerWithResponse =
-      std::function<HandlerResponse(const Request &, Response &)>;
-
-  using HandlerWithContentReader = std::function<void(
-      const Request &, Response &, const ContentReader &content_reader)>;
-
-  using Expect100ContinueHandler =
-      std::function<int(const Request &, Response &)>;
-
-  Server();
-
-  virtual ~Server();
-
-  virtual bool is_valid() const;
-
-  Server &Get(const std::string &pattern, Handler handler);
-  Server &Post(const std::string &pattern, Handler handler);
-  Server &Post(const std::string &pattern, HandlerWithContentReader handler);
-  Server &Put(const std::string &pattern, Handler handler);
-  Server &Put(const std::string &pattern, HandlerWithContentReader handler);
-  Server &Patch(const std::string &pattern, Handler handler);
-  Server &Patch(const std::string &pattern, HandlerWithContentReader handler);
-  Server &Delete(const std::string &pattern, Handler handler);
-  Server &Delete(const std::string &pattern, HandlerWithContentReader handler);
-  Server &Options(const std::string &pattern, Handler handler);
-
-  bool set_base_dir(const std::string &dir,
-                    const std::string &mount_point = nullptr);
-  bool set_mount_point(const std::string &mount_point, const std::string &dir,
-                       Headers headers = Headers());
-  bool remove_mount_point(const std::string &mount_point);
-  Server &set_file_extension_and_mimetype_mapping(const char *ext,
-                                                  const char *mime);
-  Server &set_file_request_handler(Handler handler);
-
-  Server &set_error_handler(HandlerWithResponse handler);
-  Server &set_error_handler(Handler handler);
-  Server &set_exception_handler(ExceptionHandler handler);
-  Server &set_pre_routing_handler(HandlerWithResponse handler);
-  Server &set_post_routing_handler(Handler handler);
-
-  Server &set_expect_100_continue_handler(Expect100ContinueHandler handler);
-  Server &set_logger(Logger logger);
-
-  Server &set_address_family(int family);
-  Server &set_tcp_nodelay(bool on);
-  Server &set_socket_options(SocketOptions socket_options);
-
-  Server &set_default_headers(Headers headers);
-
-  Server &set_keep_alive_max_count(size_t count);
-  Server &set_keep_alive_timeout(time_t sec);
-
-  Server &set_read_timeout(time_t sec, time_t usec = 0);
-  template <class Rep, class Period>
-  Server &set_read_timeout(const std::chrono::duration<Rep, Period> &duration);
-
-  Server &set_write_timeout(time_t sec, time_t usec = 0);
-  template <class Rep, class Period>
-  Server &set_write_timeout(const std::chrono::duration<Rep, Period> &duration);
-
-  Server &set_idle_interval(time_t sec, time_t usec = 0);
-  template <class Rep, class Period>
-  Server &set_idle_interval(const std::chrono::duration<Rep, Period> &duration);
-
-  Server &set_payload_max_length(size_t length);
-
-  bool bind_to_port(const char *host, int port, int socket_flags = 0);
-  int bind_to_any_port(const char *host, int socket_flags = 0);
-  bool listen_after_bind();
-
-  bool listen(const char *host, int port, int socket_flags = 0);
-
-  bool is_running() const;
-  void stop();
-
-  std::function<TaskQueue *(void)> new_task_queue;
-
-protected:
-  bool process_request(Stream &strm, bool close_connection,
-                       bool &connection_closed,
-                       const std::function<void(Request &)> &setup_request);
-
-  std::atomic<socket_t> svr_sock_;
-  size_t keep_alive_max_count_ = CPPHTTPLIB_KEEPALIVE_MAX_COUNT;
-  time_t keep_alive_timeout_sec_ = CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND;
-  time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND;
-  time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND;
-  time_t write_timeout_sec_ = CPPHTTPLIB_WRITE_TIMEOUT_SECOND;
-  time_t write_timeout_usec_ = CPPHTTPLIB_WRITE_TIMEOUT_USECOND;
-  time_t idle_interval_sec_ = CPPHTTPLIB_IDLE_INTERVAL_SECOND;
-  time_t idle_interval_usec_ = CPPHTTPLIB_IDLE_INTERVAL_USECOND;
-  size_t payload_max_length_ = CPPHTTPLIB_PAYLOAD_MAX_LENGTH;
-
-private:
-  using Handlers = std::vector<std::pair<std::regex, Handler>>;
-  using HandlersForContentReader =
-      std::vector<std::pair<std::regex, HandlerWithContentReader>>;
-
-  socket_t create_server_socket(const char *host, int port, int socket_flags,
-                                SocketOptions socket_options) const;
-  int bind_internal(const char *host, int port, int socket_flags);
-  bool listen_internal();
-
-  bool routing(Request &req, Response &res, Stream &strm);
-  bool handle_file_request(const Request &req, Response &res,
-                           bool head = false);
-  bool dispatch_request(Request &req, Response &res, const Handlers &handlers);
-  bool
-  dispatch_request_for_content_reader(Request &req, Response &res,
-                                      ContentReader content_reader,
-                                      const HandlersForContentReader &handlers);
-
-  bool parse_request_line(const char *s, Request &req);
-  void apply_ranges(const Request &req, Response &res,
-                    std::string &content_type, std::string &boundary);
-  bool write_response(Stream &strm, bool close_connection, const Request &req,
-                      Response &res);
-  bool write_response_with_content(Stream &strm, bool close_connection,
-                                   const Request &req, Response &res);
-  bool write_response_core(Stream &strm, bool close_connection,
-                           const Request &req, Response &res,
-                           bool need_apply_ranges);
-  bool write_content_with_provider(Stream &strm, const Request &req,
-                                   Response &res, const std::string &boundary,
-                                   const std::string &content_type);
-  bool read_content(Stream &strm, Request &req, Response &res);
-  bool
-  read_content_with_content_receiver(Stream &strm, Request &req, Response &res,
-                                     ContentReceiver receiver,
-                                     MultipartContentHeader multipart_header,
-                                     ContentReceiver multipart_receiver);
-  bool read_content_core(Stream &strm, Request &req, Response &res,
-                         ContentReceiver receiver,
-                         MultipartContentHeader mulitpart_header,
-                         ContentReceiver multipart_receiver);
-
-  virtual bool process_and_close_socket(socket_t sock);
-
-  struct MountPointEntry {
-    std::string mount_point;
-    std::string base_dir;
-    Headers headers;
-  };
-  std::vector<MountPointEntry> base_dirs_;
-
-  std::atomic<bool> is_running_;
-  std::map<std::string, std::string> file_extension_and_mimetype_map_;
-  Handler file_request_handler_;
-  Handlers get_handlers_;
-  Handlers post_handlers_;
-  HandlersForContentReader post_handlers_for_content_reader_;
-  Handlers put_handlers_;
-  HandlersForContentReader put_handlers_for_content_reader_;
-  Handlers patch_handlers_;
-  HandlersForContentReader patch_handlers_for_content_reader_;
-  Handlers delete_handlers_;
-  HandlersForContentReader delete_handlers_for_content_reader_;
-  Handlers options_handlers_;
-  HandlerWithResponse error_handler_;
-  ExceptionHandler exception_handler_;
-  HandlerWithResponse pre_routing_handler_;
-  Handler post_routing_handler_;
-  Logger logger_;
-  Expect100ContinueHandler expect_100_continue_handler_;
-
-  int address_family_ = AF_UNSPEC;
-  bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY;
-  SocketOptions socket_options_ = default_socket_options;
-
-  Headers default_headers_;
-};
-
-enum class Error {
-  Success = 0,
-  Unknown,
-  Connection,
-  BindIPAddress,
-  Read,
-  Write,
-  ExceedRedirectCount,
-  Canceled,
-  SSLConnection,
-  SSLLoadingCerts,
-  SSLServerVerification,
-  UnsupportedMultipartBoundaryChars,
-  Compression,
-};
-
-inline std::string to_string(const Error error) {
-  switch (error) {
-  case Error::Success: return "Success";
-  case Error::Connection: return "Connection";
-  case Error::BindIPAddress: return "BindIPAddress";
-  case Error::Read: return "Read";
-  case Error::Write: return "Write";
-  case Error::ExceedRedirectCount: return "ExceedRedirectCount";
-  case Error::Canceled: return "Canceled";
-  case Error::SSLConnection: return "SSLConnection";
-  case Error::SSLLoadingCerts: return "SSLLoadingCerts";
-  case Error::SSLServerVerification: return "SSLServerVerification";
-  case Error::UnsupportedMultipartBoundaryChars:
-    return "UnsupportedMultipartBoundaryChars";
-  case Error::Compression: return "Compression";
-  case Error::Unknown: return "Unknown";
-  default: break;
-  }
-
-  return "Invalid";
-}
-
-inline std::ostream &operator<<(std::ostream &os, const Error &obj) {
-  os << to_string(obj);
-  os << " (" << static_cast<std::underlying_type<Error>::type>(obj) << ')';
-  return os;
-}
-
-class Result {
-public:
-  Result(std::unique_ptr<Response> &&res, Error err,
-         Headers &&request_headers = Headers{})
-      : res_(std::move(res)), err_(err),
-        request_headers_(std::move(request_headers)) {}
-  // Response
-  operator bool() const { return res_ != nullptr; }
-  bool operator==(std::nullptr_t) const { return res_ == nullptr; }
-  bool operator!=(std::nullptr_t) const { return res_ != nullptr; }
-  const Response &value() const { return *res_; }
-  Response &value() { return *res_; }
-  const Response &operator*() const { return *res_; }
-  Response &operator*() { return *res_; }
-  const Response *operator->() const { return res_.get(); }
-  Response *operator->() { return res_.get(); }
-
-  // Error
-  Error error() const { return err_; }
-
-  // Request Headers
-  bool has_request_header(const char *key) const;
-  std::string get_request_header_value(const char *key, size_t id = 0) const;
-  template <typename T>
-  T get_request_header_value(const char *key, size_t id = 0) const;
-  size_t get_request_header_value_count(const char *key) const;
-
-private:
-  std::unique_ptr<Response> res_;
-  Error err_;
-  Headers request_headers_;
-};
-
-class ClientImpl {
-public:
-  explicit ClientImpl(const std::string &host);
-
-  explicit ClientImpl(const std::string &host, int port);
-
-  explicit ClientImpl(const std::string &host, int port,
-                      const std::string &client_cert_path,
-                      const std::string &client_key_path);
-
-  virtual ~ClientImpl();
-
-  virtual bool is_valid() const;
-
-  Result Get(const char *path);
-  Result Get(const char *path, const Headers &headers);
-  Result Get(const char *path, Progress progress);
-  Result Get(const char *path, const Headers &headers, Progress progress);
-  Result Get(const char *path, ContentReceiver content_receiver);
-  Result Get(const char *path, const Headers &headers,
-             ContentReceiver content_receiver);
-  Result Get(const char *path, ContentReceiver content_receiver,
-             Progress progress);
-  Result Get(const char *path, const Headers &headers,
-             ContentReceiver content_receiver, Progress progress);
-  Result Get(const char *path, ResponseHandler response_handler,
-             ContentReceiver content_receiver);
-  Result Get(const char *path, const Headers &headers,
-             ResponseHandler response_handler,
-             ContentReceiver content_receiver);
-  Result Get(const char *path, ResponseHandler response_handler,
-             ContentReceiver content_receiver, Progress progress);
-  Result Get(const char *path, const Headers &headers,
-             ResponseHandler response_handler, ContentReceiver content_receiver,
-             Progress progress);
-
-  Result Get(const char *path, const Params &params, const Headers &headers,
-             Progress progress = nullptr);
-  Result Get(const char *path, const Params &params, const Headers &headers,
-             ContentReceiver content_receiver, Progress progress = nullptr);
-  Result Get(const char *path, const Params &params, const Headers &headers,
-             ResponseHandler response_handler, ContentReceiver content_receiver,
-             Progress progress = nullptr);
-
-  Result Head(const char *path);
-  Result Head(const char *path, const Headers &headers);
-
-  Result Post(const char *path);
-  Result Post(const char *path, const char *body, size_t content_length,
-              const char *content_type);
-  Result Post(const char *path, const Headers &headers, const char *body,
-              size_t content_length, const char *content_type);
-  Result Post(const char *path, const std::string &body,
-              const char *content_type);
-  Result Post(const char *path, const Headers &headers, const std::string &body,
-              const char *content_type);
-  Result Post(const char *path, size_t content_length,
-              ContentProvider content_provider, const char *content_type);
-  Result Post(const char *path, ContentProviderWithoutLength content_provider,
-              const char *content_type);
-  Result Post(const char *path, const Headers &headers, size_t content_length,
-              ContentProvider content_provider, const char *content_type);
-  Result Post(const char *path, const Headers &headers,
-              ContentProviderWithoutLength content_provider,
-              const char *content_type);
-  Result Post(const char *path, const Params &params);
-  Result Post(const char *path, const Headers &headers, const Params &params);
-  Result Post(const char *path, const MultipartFormDataItems &items);
-  Result Post(const char *path, const Headers &headers,
-              const MultipartFormDataItems &items);
-  Result Post(const char *path, const Headers &headers,
-              const MultipartFormDataItems &items, const std::string &boundary);
-
-  Result Put(const char *path);
-  Result Put(const char *path, const char *body, size_t content_length,
-             const char *content_type);
-  Result Put(const char *path, const Headers &headers, const char *body,
-             size_t content_length, const char *content_type);
-  Result Put(const char *path, const std::string &body,
-             const char *content_type);
-  Result Put(const char *path, const Headers &headers, const std::string &body,
-             const char *content_type);
-  Result Put(const char *path, size_t content_length,
-             ContentProvider content_provider, const char *content_type);
-  Result Put(const char *path, ContentProviderWithoutLength content_provider,
-             const char *content_type);
-  Result Put(const char *path, const Headers &headers, size_t content_length,
-             ContentProvider content_provider, const char *content_type);
-  Result Put(const char *path, const Headers &headers,
-             ContentProviderWithoutLength content_provider,
-             const char *content_type);
-  Result Put(const char *path, const Params &params);
-  Result Put(const char *path, const Headers &headers, const Params &params);
-
-  Result Patch(const char *path);
-  Result Patch(const char *path, const char *body, size_t content_length,
-               const char *content_type);
-  Result Patch(const char *path, const Headers &headers, const char *body,
-               size_t content_length, const char *content_type);
-  Result Patch(const char *path, const std::string &body,
-               const char *content_type);
-  Result Patch(const char *path, const Headers &headers,
-               const std::string &body, const char *content_type);
-  Result Patch(const char *path, size_t content_length,
-               ContentProvider content_provider, const char *content_type);
-  Result Patch(const char *path, ContentProviderWithoutLength content_provider,
-               const char *content_type);
-  Result Patch(const char *path, const Headers &headers, size_t content_length,
-               ContentProvider content_provider, const char *content_type);
-  Result Patch(const char *path, const Headers &headers,
-               ContentProviderWithoutLength content_provider,
-               const char *content_type);
-
-  Result Delete(const char *path);
-  Result Delete(const char *path, const Headers &headers);
-  Result Delete(const char *path, const char *body, size_t content_length,
-                const char *content_type);
-  Result Delete(const char *path, const Headers &headers, const char *body,
-                size_t content_length, const char *content_type);
-  Result Delete(const char *path, const std::string &body,
-                const char *content_type);
-  Result Delete(const char *path, const Headers &headers,
-                const std::string &body, const char *content_type);
-
-  Result Options(const char *path);
-  Result Options(const char *path, const Headers &headers);
-
-  bool send(Request &req, Response &res, Error &error);
-  Result send(const Request &req);
-
-  size_t is_socket_open() const;
-
-  void stop();
-
-  void set_default_headers(Headers headers);
-
-  void set_address_family(int family);
-  void set_tcp_nodelay(bool on);
-  void set_socket_options(SocketOptions socket_options);
-
-  void set_connection_timeout(time_t sec, time_t usec = 0);
-  template <class Rep, class Period>
-  void
-  set_connection_timeout(const std::chrono::duration<Rep, Period> &duration);
-
-  void set_read_timeout(time_t sec, time_t usec = 0);
-  template <class Rep, class Period>
-  void set_read_timeout(const std::chrono::duration<Rep, Period> &duration);
-
-  void set_write_timeout(time_t sec, time_t usec = 0);
-  template <class Rep, class Period>
-  void set_write_timeout(const std::chrono::duration<Rep, Period> &duration);
-
-  void set_basic_auth(const char *username, const char *password);
-  void set_bearer_token_auth(const char *token);
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  void set_digest_auth(const char *username, const char *password);
-#endif
-
-  void set_keep_alive(bool on);
-  void set_follow_location(bool on);
-
-  void set_url_encode(bool on);
-
-  void set_compress(bool on);
-
-  void set_decompress(bool on);
-
-  void set_interface(const char *intf);
-
-  void set_proxy(const char *host, int port);
-  void set_proxy_basic_auth(const char *username, const char *password);
-  void set_proxy_bearer_token_auth(const char *token);
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  void set_proxy_digest_auth(const char *username, const char *password);
-#endif
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  void set_ca_cert_path(const char *ca_cert_file_path,
-                        const char *ca_cert_dir_path = nullptr);
-  void set_ca_cert_store(X509_STORE *ca_cert_store);
-#endif
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  void enable_server_certificate_verification(bool enabled);
-#endif
-
-  void set_logger(Logger logger);
-
-protected:
-  struct Socket {
-    socket_t sock = INVALID_SOCKET;
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-    SSL *ssl = nullptr;
-#endif
-
-    bool is_open() const { return sock != INVALID_SOCKET; }
-  };
-
-  Result send_(Request &&req);
-
-  virtual bool create_and_connect_socket(Socket &socket, Error &error);
-
-  // All of:
-  //   shutdown_ssl
-  //   shutdown_socket
-  //   close_socket
-  // should ONLY be called when socket_mutex_ is locked.
-  // Also, shutdown_ssl and close_socket should also NOT be called concurrently
-  // with a DIFFERENT thread sending requests using that socket.
-  virtual void shutdown_ssl(Socket &socket, bool shutdown_gracefully);
-  void shutdown_socket(Socket &socket);
-  void close_socket(Socket &socket);
-
-  bool process_request(Stream &strm, Request &req, Response &res,
-                       bool close_connection, Error &error);
-
-  bool write_content_with_provider(Stream &strm, const Request &req,
-                                   Error &error);
-
-  void copy_settings(const ClientImpl &rhs);
-
-  // Socket endoint information
-  const std::string host_;
-  const int port_;
-  const std::string host_and_port_;
-
-  // Current open socket
-  Socket socket_;
-  mutable std::mutex socket_mutex_;
-  std::recursive_mutex request_mutex_;
-
-  // These are all protected under socket_mutex
-  size_t socket_requests_in_flight_ = 0;
-  std::thread::id socket_requests_are_from_thread_ = std::thread::id();
-  bool socket_should_be_closed_when_request_is_done_ = false;
-
-  // Default headers
-  Headers default_headers_;
-
-  // Settings
-  std::string client_cert_path_;
-  std::string client_key_path_;
-
-  time_t connection_timeout_sec_ = CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND;
-  time_t connection_timeout_usec_ = CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND;
-  time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND;
-  time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND;
-  time_t write_timeout_sec_ = CPPHTTPLIB_WRITE_TIMEOUT_SECOND;
-  time_t write_timeout_usec_ = CPPHTTPLIB_WRITE_TIMEOUT_USECOND;
-
-  std::string basic_auth_username_;
-  std::string basic_auth_password_;
-  std::string bearer_token_auth_token_;
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  std::string digest_auth_username_;
-  std::string digest_auth_password_;
-#endif
-
-  bool keep_alive_ = false;
-  bool follow_location_ = false;
-
-  bool url_encode_ = true;
-
-  int address_family_ = AF_UNSPEC;
-  bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY;
-  SocketOptions socket_options_ = nullptr;
-
-  bool compress_ = false;
-  bool decompress_ = true;
-
-  std::string interface_;
-
-  std::string proxy_host_;
-  int proxy_port_ = -1;
-
-  std::string proxy_basic_auth_username_;
-  std::string proxy_basic_auth_password_;
-  std::string proxy_bearer_token_auth_token_;
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  std::string proxy_digest_auth_username_;
-  std::string proxy_digest_auth_password_;
-#endif
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  std::string ca_cert_file_path_;
-  std::string ca_cert_dir_path_;
-
-  X509_STORE *ca_cert_store_ = nullptr;
-#endif
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  bool server_certificate_verification_ = true;
-#endif
-
-  Logger logger_;
-
-private:
-  socket_t create_client_socket(Error &error) const;
-  bool read_response_line(Stream &strm, const Request &req, Response &res);
-  bool write_request(Stream &strm, Request &req, bool close_connection,
-                     Error &error);
-  bool redirect(Request &req, Response &res, Error &error);
-  bool handle_request(Stream &strm, Request &req, Response &res,
-                      bool close_connection, Error &error);
-  std::unique_ptr<Response> send_with_content_provider(
-      Request &req,
-      // const char *method, const char *path, const Headers &headers,
-      const char *body, size_t content_length, ContentProvider content_provider,
-      ContentProviderWithoutLength content_provider_without_length,
-      const char *content_type, Error &error);
-  Result send_with_content_provider(
-      const char *method, const char *path, const Headers &headers,
-      const char *body, size_t content_length, ContentProvider content_provider,
-      ContentProviderWithoutLength content_provider_without_length,
-      const char *content_type);
-
-  std::string adjust_host_string(const std::string &host) const;
-
-  virtual bool process_socket(const Socket &socket,
-                              std::function<bool(Stream &strm)> callback);
-  virtual bool is_ssl() const;
-};
-
-class Client {
-public:
-  // Universal interface
-  explicit Client(const std::string &scheme_host_port);
-
-  explicit Client(const std::string &scheme_host_port,
-                  const std::string &client_cert_path,
-                  const std::string &client_key_path);
-
-  // HTTP only interface
-  explicit Client(const std::string &host, int port);
-
-  explicit Client(const std::string &host, int port,
-                  const std::string &client_cert_path,
-                  const std::string &client_key_path);
-
-  ~Client();
-
-  bool is_valid() const;
-
-  Result Get(const char *path);
-  Result Get(const char *path, const Headers &headers);
-  Result Get(const char *path, Progress progress);
-  Result Get(const char *path, const Headers &headers, Progress progress);
-  Result Get(const char *path, ContentReceiver content_receiver);
-  Result Get(const char *path, const Headers &headers,
-             ContentReceiver content_receiver);
-  Result Get(const char *path, ContentReceiver content_receiver,
-             Progress progress);
-  Result Get(const char *path, const Headers &headers,
-             ContentReceiver content_receiver, Progress progress);
-  Result Get(const char *path, ResponseHandler response_handler,
-             ContentReceiver content_receiver);
-  Result Get(const char *path, const Headers &headers,
-             ResponseHandler response_handler,
-             ContentReceiver content_receiver);
-  Result Get(const char *path, const Headers &headers,
-             ResponseHandler response_handler, ContentReceiver content_receiver,
-             Progress progress);
-  Result Get(const char *path, ResponseHandler response_handler,
-             ContentReceiver content_receiver, Progress progress);
-
-  Result Get(const char *path, const Params &params, const Headers &headers,
-             Progress progress = nullptr);
-  Result Get(const char *path, const Params &params, const Headers &headers,
-             ContentReceiver content_receiver, Progress progress = nullptr);
-  Result Get(const char *path, const Params &params, const Headers &headers,
-             ResponseHandler response_handler, ContentReceiver content_receiver,
-             Progress progress = nullptr);
-
-  Result Head(const char *path);
-  Result Head(const char *path, const Headers &headers);
-
-  Result Post(const char *path);
-  Result Post(const char *path, const char *body, size_t content_length,
-              const char *content_type);
-  Result Post(const char *path, const Headers &headers, const char *body,
-              size_t content_length, const char *content_type);
-  Result Post(const char *path, const std::string &body,
-              const char *content_type);
-  Result Post(const char *path, const Headers &headers, const std::string &body,
-              const char *content_type);
-  Result Post(const char *path, size_t content_length,
-              ContentProvider content_provider, const char *content_type);
-  Result Post(const char *path, ContentProviderWithoutLength content_provider,
-              const char *content_type);
-  Result Post(const char *path, const Headers &headers, size_t content_length,
-              ContentProvider content_provider, const char *content_type);
-  Result Post(const char *path, const Headers &headers,
-              ContentProviderWithoutLength content_provider,
-              const char *content_type);
-  Result Post(const char *path, const Params &params);
-  Result Post(const char *path, const Headers &headers, const Params &params);
-  Result Post(const char *path, const MultipartFormDataItems &items);
-  Result Post(const char *path, const Headers &headers,
-              const MultipartFormDataItems &items);
-  Result Post(const char *path, const Headers &headers,
-              const MultipartFormDataItems &items, const std::string &boundary);
-  Result Put(const char *path);
-  Result Put(const char *path, const char *body, size_t content_length,
-             const char *content_type);
-  Result Put(const char *path, const Headers &headers, const char *body,
-             size_t content_length, const char *content_type);
-  Result Put(const char *path, const std::string &body,
-             const char *content_type);
-  Result Put(const char *path, const Headers &headers, const std::string &body,
-             const char *content_type);
-  Result Put(const char *path, size_t content_length,
-             ContentProvider content_provider, const char *content_type);
-  Result Put(const char *path, ContentProviderWithoutLength content_provider,
-             const char *content_type);
-  Result Put(const char *path, const Headers &headers, size_t content_length,
-             ContentProvider content_provider, const char *content_type);
-  Result Put(const char *path, const Headers &headers,
-             ContentProviderWithoutLength content_provider,
-             const char *content_type);
-  Result Put(const char *path, const Params &params);
-  Result Put(const char *path, const Headers &headers, const Params &params);
-  Result Patch(const char *path);
-  Result Patch(const char *path, const char *body, size_t content_length,
-               const char *content_type);
-  Result Patch(const char *path, const Headers &headers, const char *body,
-               size_t content_length, const char *content_type);
-  Result Patch(const char *path, const std::string &body,
-               const char *content_type);
-  Result Patch(const char *path, const Headers &headers,
-               const std::string &body, const char *content_type);
-  Result Patch(const char *path, size_t content_length,
-               ContentProvider content_provider, const char *content_type);
-  Result Patch(const char *path, ContentProviderWithoutLength content_provider,
-               const char *content_type);
-  Result Patch(const char *path, const Headers &headers, size_t content_length,
-               ContentProvider content_provider, const char *content_type);
-  Result Patch(const char *path, const Headers &headers,
-               ContentProviderWithoutLength content_provider,
-               const char *content_type);
-
-  Result Delete(const char *path);
-  Result Delete(const char *path, const Headers &headers);
-  Result Delete(const char *path, const char *body, size_t content_length,
-                const char *content_type);
-  Result Delete(const char *path, const Headers &headers, const char *body,
-                size_t content_length, const char *content_type);
-  Result Delete(const char *path, const std::string &body,
-                const char *content_type);
-  Result Delete(const char *path, const Headers &headers,
-                const std::string &body, const char *content_type);
-
-  Result Options(const char *path);
-  Result Options(const char *path, const Headers &headers);
-
-  bool send(Request &req, Response &res, Error &error);
-  Result send(const Request &req);
-
-  size_t is_socket_open() const;
-
-  void stop();
-
-  void set_default_headers(Headers headers);
-
-  void set_address_family(int family);
-  void set_tcp_nodelay(bool on);
-  void set_socket_options(SocketOptions socket_options);
-
-  void set_connection_timeout(time_t sec, time_t usec = 0);
-  template <class Rep, class Period>
-  void
-  set_connection_timeout(const std::chrono::duration<Rep, Period> &duration);
-
-  void set_read_timeout(time_t sec, time_t usec = 0);
-  template <class Rep, class Period>
-  void set_read_timeout(const std::chrono::duration<Rep, Period> &duration);
-
-  void set_write_timeout(time_t sec, time_t usec = 0);
-  template <class Rep, class Period>
-  void set_write_timeout(const std::chrono::duration<Rep, Period> &duration);
-
-  void set_basic_auth(const char *username, const char *password);
-  void set_bearer_token_auth(const char *token);
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  void set_digest_auth(const char *username, const char *password);
-#endif
-
-  void set_keep_alive(bool on);
-  void set_follow_location(bool on);
-
-  void set_url_encode(bool on);
-
-  void set_compress(bool on);
-
-  void set_decompress(bool on);
-
-  void set_interface(const char *intf);
-
-  void set_proxy(const char *host, int port);
-  void set_proxy_basic_auth(const char *username, const char *password);
-  void set_proxy_bearer_token_auth(const char *token);
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  void set_proxy_digest_auth(const char *username, const char *password);
-#endif
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  void enable_server_certificate_verification(bool enabled);
-#endif
-
-  void set_logger(Logger logger);
-
-  // SSL
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  void set_ca_cert_path(const char *ca_cert_file_path,
-                        const char *ca_cert_dir_path = nullptr);
-
-  void set_ca_cert_store(X509_STORE *ca_cert_store);
-
-  long get_openssl_verify_result() const;
-
-  SSL_CTX *ssl_context() const;
-#endif
-
-private:
-  std::unique_ptr<ClientImpl> cli_;
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  bool is_ssl_ = false;
-#endif
-};
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-class SSLServer : public Server {
-public:
-  SSLServer(const char *cert_path, const char *private_key_path,
-            const char *client_ca_cert_file_path = nullptr,
-            const char *client_ca_cert_dir_path = nullptr);
-
-  SSLServer(X509 *cert, EVP_PKEY *private_key,
-            X509_STORE *client_ca_cert_store = nullptr);
-
-  ~SSLServer() override;
-
-  bool is_valid() const override;
-
-private:
-  bool process_and_close_socket(socket_t sock) override;
-
-  SSL_CTX *ctx_;
-  std::mutex ctx_mutex_;
-};
-
-class SSLClient : public ClientImpl {
-public:
-  explicit SSLClient(const std::string &host);
-
-  explicit SSLClient(const std::string &host, int port);
-
-  explicit SSLClient(const std::string &host, int port,
-                     const std::string &client_cert_path,
-                     const std::string &client_key_path);
-
-  explicit SSLClient(const std::string &host, int port, X509 *client_cert,
-                     EVP_PKEY *client_key);
-
-  ~SSLClient() override;
-
-  bool is_valid() const override;
-
-  void set_ca_cert_store(X509_STORE *ca_cert_store);
-
-  long get_openssl_verify_result() const;
-
-  SSL_CTX *ssl_context() const;
-
-private:
-  bool create_and_connect_socket(Socket &socket, Error &error) override;
-  void shutdown_ssl(Socket &socket, bool shutdown_gracefully) override;
-  void shutdown_ssl_impl(Socket &socket, bool shutdown_socket);
-
-  bool process_socket(const Socket &socket,
-                      std::function<bool(Stream &strm)> callback) override;
-  bool is_ssl() const override;
-
-  bool connect_with_proxy(Socket &sock, Response &res, bool &success,
-                          Error &error);
-  bool initialize_ssl(Socket &socket, Error &error);
-
-  bool load_certs();
-
-  bool verify_host(X509 *server_cert) const;
-  bool verify_host_with_subject_alt_name(X509 *server_cert) const;
-  bool verify_host_with_common_name(X509 *server_cert) const;
-  bool check_host_name(const char *pattern, size_t pattern_len) const;
-
-  SSL_CTX *ctx_;
-  std::mutex ctx_mutex_;
-  std::once_flag initialize_cert_;
-
-  std::vector<std::string> host_components_;
-
-  long verify_result_ = 0;
-
-  friend class ClientImpl;
-};
-#endif
-
-/*
- * Implementation of template methods.
- */
-
-namespace detail {
-
-template <typename T, typename U>
-inline void duration_to_sec_and_usec(const T &duration, U callback) {
-  auto sec = std::chrono::duration_cast<std::chrono::seconds>(duration).count();
-  auto usec = std::chrono::duration_cast<std::chrono::microseconds>(
-                  duration - std::chrono::seconds(sec))
-                  .count();
-  callback(sec, usec);
-}
-
-template <typename T>
-inline T get_header_value(const Headers & /*headers*/, const char * /*key*/,
-                          size_t /*id*/ = 0, uint64_t /*def*/ = 0) {}
-
-template <>
-inline uint64_t get_header_value<uint64_t>(const Headers &headers,
-                                           const char *key, size_t id,
-                                           uint64_t def) {
-  auto rng = headers.equal_range(key);
-  auto it = rng.first;
-  std::advance(it, static_cast<ssize_t>(id));
-  if (it != rng.second) {
-    return std::strtoull(it->second.data(), nullptr, 10);
-  }
-  return def;
-}
-
-} // namespace detail
-
-template <typename T>
-inline T Request::get_header_value(const char *key, size_t id) const {
-  return detail::get_header_value<T>(headers, key, id, 0);
-}
-
-template <typename T>
-inline T Response::get_header_value(const char *key, size_t id) const {
-  return detail::get_header_value<T>(headers, key, id, 0);
-}
-
-template <typename... Args>
-inline ssize_t Stream::write_format(const char *fmt, const Args &... args) {
-  const auto bufsiz = 2048;
-  std::array<char, bufsiz> buf;
-
-#if defined(_MSC_VER) && _MSC_VER < 1900
-  auto sn = _snprintf_s(buf.data(), bufsiz - 1, buf.size() - 1, fmt, args...);
-#else
-  auto sn = snprintf(buf.data(), buf.size() - 1, fmt, args...);
-#endif
-  if (sn <= 0) { return sn; }
-
-  auto n = static_cast<size_t>(sn);
-
-  if (n >= buf.size() - 1) {
-    std::vector<char> glowable_buf(buf.size());
-
-    while (n >= glowable_buf.size() - 1) {
-      glowable_buf.resize(glowable_buf.size() * 2);
-#if defined(_MSC_VER) && _MSC_VER < 1900
-      n = static_cast<size_t>(_snprintf_s(&glowable_buf[0], glowable_buf.size(),
-                                          glowable_buf.size() - 1, fmt,
-                                          args...));
-#else
-      n = static_cast<size_t>(
-          snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...));
-#endif
-    }
-    return write(&glowable_buf[0], n);
-  } else {
-    return write(buf.data(), n);
-  }
-}
-
-template <class Rep, class Period>
-inline Server &
-Server::set_read_timeout(const std::chrono::duration<Rep, Period> &duration) {
-  detail::duration_to_sec_and_usec(
-      duration, [&](time_t sec, time_t usec) { set_read_timeout(sec, usec); });
-  return *this;
-}
-
-template <class Rep, class Period>
-inline Server &
-Server::set_write_timeout(const std::chrono::duration<Rep, Period> &duration) {
-  detail::duration_to_sec_and_usec(
-      duration, [&](time_t sec, time_t usec) { set_write_timeout(sec, usec); });
-  return *this;
-}
-
-template <class Rep, class Period>
-inline Server &
-Server::set_idle_interval(const std::chrono::duration<Rep, Period> &duration) {
-  detail::duration_to_sec_and_usec(
-      duration, [&](time_t sec, time_t usec) { set_idle_interval(sec, usec); });
-  return *this;
-}
-
-template <typename T>
-inline T Result::get_request_header_value(const char *key, size_t id) const {
-  return detail::get_header_value<T>(request_headers_, key, id, 0);
-}
-
-template <class Rep, class Period>
-inline void ClientImpl::set_connection_timeout(
-    const std::chrono::duration<Rep, Period> &duration) {
-  detail::duration_to_sec_and_usec(duration, [&](time_t sec, time_t usec) {
-    set_connection_timeout(sec, usec);
-  });
-}
-
-template <class Rep, class Period>
-inline void ClientImpl::set_read_timeout(
-    const std::chrono::duration<Rep, Period> &duration) {
-  detail::duration_to_sec_and_usec(
-      duration, [&](time_t sec, time_t usec) { set_read_timeout(sec, usec); });
-}
-
-template <class Rep, class Period>
-inline void ClientImpl::set_write_timeout(
-    const std::chrono::duration<Rep, Period> &duration) {
-  detail::duration_to_sec_and_usec(
-      duration, [&](time_t sec, time_t usec) { set_write_timeout(sec, usec); });
-}
-
-template <class Rep, class Period>
-inline void Client::set_connection_timeout(
-    const std::chrono::duration<Rep, Period> &duration) {
-  cli_->set_connection_timeout(duration);
-}
-
-template <class Rep, class Period>
-inline void
-Client::set_read_timeout(const std::chrono::duration<Rep, Period> &duration) {
-  cli_->set_read_timeout(duration);
-}
-
-template <class Rep, class Period>
-inline void
-Client::set_write_timeout(const std::chrono::duration<Rep, Period> &duration) {
-  cli_->set_write_timeout(duration);
-}
-
-/*
- * Forward declarations and types that will be part of the .h file if split into
- * .h + .cc.
- */
-
-std::pair<std::string, std::string> make_range_header(Ranges ranges);
-
-std::pair<std::string, std::string>
-make_basic_authentication_header(const std::string &username,
-                                 const std::string &password,
-                                 bool is_proxy = false);
-
-namespace detail {
-
-std::string encode_query_param(const std::string &value);
-
-void read_file(const std::string &path, std::string &out);
-
-std::string trim_copy(const std::string &s);
-
-void split(const char *b, const char *e, char d,
-           std::function<void(const char *, const char *)> fn);
-
-bool process_client_socket(socket_t sock, time_t read_timeout_sec,
-                           time_t read_timeout_usec, time_t write_timeout_sec,
-                           time_t write_timeout_usec,
-                           std::function<bool(Stream &)> callback);
-
-socket_t create_client_socket(const char *host, int port, int address_family,
-                              bool tcp_nodelay, SocketOptions socket_options,
-                              time_t connection_timeout_sec,
-                              time_t connection_timeout_usec,
-                              time_t read_timeout_sec, time_t read_timeout_usec,
-                              time_t write_timeout_sec,
-                              time_t write_timeout_usec,
-                              const std::string &intf, Error &error);
-
-const char *get_header_value(const Headers &headers, const char *key,
-                             size_t id = 0, const char *def = nullptr);
-
-std::string params_to_query_str(const Params &params);
-
-void parse_query_text(const std::string &s, Params &params);
-
-bool parse_range_header(const std::string &s, Ranges &ranges);
-
-int close_socket(socket_t sock);
-
-enum class EncodingType { None = 0, Gzip, Brotli };
-
-EncodingType encoding_type(const Request &req, const Response &res);
-
-class BufferStream : public Stream {
-public:
-  BufferStream() = default;
-  ~BufferStream() override = default;
-
-  bool is_readable() const override;
-  bool is_writable() const override;
-  ssize_t read(char *ptr, size_t size) override;
-  ssize_t write(const char *ptr, size_t size) override;
-  void get_remote_ip_and_port(std::string &ip, int &port) const override;
-  socket_t socket() const override;
-
-  const std::string &get_buffer() const;
-
-private:
-  std::string buffer;
-  size_t position = 0;
-};
-
-class compressor {
-public:
-  virtual ~compressor() = default;
-
-  typedef std::function<bool(const char *data, size_t data_len)> Callback;
-  virtual bool compress(const char *data, size_t data_length, bool last,
-                        Callback callback) = 0;
-};
-
-class decompressor {
-public:
-  virtual ~decompressor() = default;
-
-  virtual bool is_valid() const = 0;
-
-  typedef std::function<bool(const char *data, size_t data_len)> Callback;
-  virtual bool decompress(const char *data, size_t data_length,
-                          Callback callback) = 0;
-};
-
-class nocompressor : public compressor {
-public:
-  virtual ~nocompressor() = default;
-
-  bool compress(const char *data, size_t data_length, bool /*last*/,
-                Callback callback) override;
-};
-
-#ifdef CPPHTTPLIB_ZLIB_SUPPORT
-class gzip_compressor : public compressor {
-public:
-  gzip_compressor();
-  ~gzip_compressor();
-
-  bool compress(const char *data, size_t data_length, bool last,
-                Callback callback) override;
-
-private:
-  bool is_valid_ = false;
-  z_stream strm_;
-};
-
-class gzip_decompressor : public decompressor {
-public:
-  gzip_decompressor();
-  ~gzip_decompressor();
-
-  bool is_valid() const override;
-
-  bool decompress(const char *data, size_t data_length,
-                  Callback callback) override;
-
-private:
-  bool is_valid_ = false;
-  z_stream strm_;
-};
-#endif
-
-#ifdef CPPHTTPLIB_BROTLI_SUPPORT
-class brotli_compressor : public compressor {
-public:
-  brotli_compressor();
-  ~brotli_compressor();
-
-  bool compress(const char *data, size_t data_length, bool last,
-                Callback callback) override;
-
-private:
-  BrotliEncoderState *state_ = nullptr;
-};
-
-class brotli_decompressor : public decompressor {
-public:
-  brotli_decompressor();
-  ~brotli_decompressor();
-
-  bool is_valid() const override;
-
-  bool decompress(const char *data, size_t data_length,
-                  Callback callback) override;
-
-private:
-  BrotliDecoderResult decoder_r;
-  BrotliDecoderState *decoder_s = nullptr;
-};
-#endif
-
-// NOTE: until the read size reaches `fixed_buffer_size`, use `fixed_buffer`
-// to store data. The call can set memory on stack for performance.
-class stream_line_reader {
-public:
-  stream_line_reader(Stream &strm, char *fixed_buffer,
-                     size_t fixed_buffer_size);
-  const char *ptr() const;
-  size_t size() const;
-  bool end_with_crlf() const;
-  bool getline();
-
-private:
-  void append(char c);
-
-  Stream &strm_;
-  char *fixed_buffer_;
-  const size_t fixed_buffer_size_;
-  size_t fixed_buffer_used_size_ = 0;
-  std::string glowable_buffer_;
-};
-
-} // namespace detail
-
-// ----------------------------------------------------------------------------
-
-/*
- * Implementation that will be part of the .cc file if split into .h + .cc.
- */
-
-namespace detail {
-
-inline bool is_hex(char c, int &v) {
-  if (0x20 <= c && isdigit(c)) {
-    v = c - '0';
-    return true;
-  } else if ('A' <= c && c <= 'F') {
-    v = c - 'A' + 10;
-    return true;
-  } else if ('a' <= c && c <= 'f') {
-    v = c - 'a' + 10;
-    return true;
-  }
-  return false;
-}
-
-inline bool from_hex_to_i(const std::string &s, size_t i, size_t cnt,
-                          int &val) {
-  if (i >= s.size()) { return false; }
-
-  val = 0;
-  for (; cnt; i++, cnt--) {
-    if (!s[i]) { return false; }
-    int v = 0;
-    if (is_hex(s[i], v)) {
-      val = val * 16 + v;
-    } else {
-      return false;
-    }
-  }
-  return true;
-}
-
-inline std::string from_i_to_hex(size_t n) {
-  const char *charset = "0123456789abcdef";
-  std::string ret;
-  do {
-    ret = charset[n & 15] + ret;
-    n >>= 4;
-  } while (n > 0);
-  return ret;
-}
-
-inline size_t to_utf8(int code, char *buff) {
-  if (code < 0x0080) {
-    buff[0] = (code & 0x7F);
-    return 1;
-  } else if (code < 0x0800) {
-    buff[0] = static_cast<char>(0xC0 | ((code >> 6) & 0x1F));
-    buff[1] = static_cast<char>(0x80 | (code & 0x3F));
-    return 2;
-  } else if (code < 0xD800) {
-    buff[0] = static_cast<char>(0xE0 | ((code >> 12) & 0xF));
-    buff[1] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));
-    buff[2] = static_cast<char>(0x80 | (code & 0x3F));
-    return 3;
-  } else if (code < 0xE000) { // D800 - DFFF is invalid...
-    return 0;
-  } else if (code < 0x10000) {
-    buff[0] = static_cast<char>(0xE0 | ((code >> 12) & 0xF));
-    buff[1] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));
-    buff[2] = static_cast<char>(0x80 | (code & 0x3F));
-    return 3;
-  } else if (code < 0x110000) {
-    buff[0] = static_cast<char>(0xF0 | ((code >> 18) & 0x7));
-    buff[1] = static_cast<char>(0x80 | ((code >> 12) & 0x3F));
-    buff[2] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));
-    buff[3] = static_cast<char>(0x80 | (code & 0x3F));
-    return 4;
-  }
-
-  // NOTREACHED
-  return 0;
-}
-
-// NOTE: This code came up with the following stackoverflow post:
-// https://stackoverflow.com/questions/180947/base64-decode-snippet-in-c
-inline std::string base64_encode(const std::string &in) {
-  static const auto lookup =
-      "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-  std::string out;
-  out.reserve(in.size());
-
-  int val = 0;
-  int valb = -6;
-
-  for (auto c : in) {
-    val = (val << 8) + static_cast<uint8_t>(c);
-    valb += 8;
-    while (valb >= 0) {
-      out.push_back(lookup[(val >> valb) & 0x3F]);
-      valb -= 6;
-    }
-  }
-
-  if (valb > -6) { out.push_back(lookup[((val << 8) >> (valb + 8)) & 0x3F]); }
-
-  while (out.size() % 4) {
-    out.push_back('=');
-  }
-
-  return out;
-}
-
-inline bool is_file(const std::string &path) {
-  struct stat st;
-  return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode);
-}
-
-inline bool is_dir(const std::string &path) {
-  struct stat st;
-  return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode);
-}
-
-inline bool is_valid_path(const std::string &path) {
-  size_t level = 0;
-  size_t i = 0;
-
-  // Skip slash
-  while (i < path.size() && path[i] == '/') {
-    i++;
-  }
-
-  while (i < path.size()) {
-    // Read component
-    auto beg = i;
-    while (i < path.size() && path[i] != '/') {
-      i++;
-    }
-
-    auto len = i - beg;
-    assert(len > 0);
-
-    if (!path.compare(beg, len, ".")) {
-      ;
-    } else if (!path.compare(beg, len, "..")) {
-      if (level == 0) { return false; }
-      level--;
-    } else {
-      level++;
-    }
-
-    // Skip slash
-    while (i < path.size() && path[i] == '/') {
-      i++;
-    }
-  }
-
-  return true;
-}
-
-inline std::string encode_query_param(const std::string &value) {
-  std::ostringstream escaped;
-  escaped.fill('0');
-  escaped << std::hex;
-
-  for (auto c : value) {
-    if (std::isalnum(static_cast<uint8_t>(c)) || c == '-' || c == '_' ||
-        c == '.' || c == '!' || c == '~' || c == '*' || c == '\'' || c == '(' ||
-        c == ')') {
-      escaped << c;
-    } else {
-      escaped << std::uppercase;
-      escaped << '%' << std::setw(2)
-              << static_cast<int>(static_cast<unsigned char>(c));
-      escaped << std::nouppercase;
-    }
-  }
-
-  return escaped.str();
-}
-
-inline std::string encode_url(const std::string &s) {
-  std::string result;
-  result.reserve(s.size());
-
-  for (size_t i = 0; s[i]; i++) {
-    switch (s[i]) {
-    case ' ': result += "%20"; break;
-    case '+': result += "%2B"; break;
-    case '\r': result += "%0D"; break;
-    case '\n': result += "%0A"; break;
-    case '\'': result += "%27"; break;
-    case ',': result += "%2C"; break;
-    // case ':': result += "%3A"; break; // ok? probably...
-    case ';': result += "%3B"; break;
-    default:
-      auto c = static_cast<uint8_t>(s[i]);
-      if (c >= 0x80) {
-        result += '%';
-        char hex[4];
-        auto len = snprintf(hex, sizeof(hex) - 1, "%02X", c);
-        assert(len == 2);
-        result.append(hex, static_cast<size_t>(len));
-      } else {
-        result += s[i];
-      }
-      break;
-    }
-  }
-
-  return result;
-}
-
-inline std::string decode_url(const std::string &s,
-                              bool convert_plus_to_space) {
-  std::string result;
-
-  for (size_t i = 0; i < s.size(); i++) {
-    if (s[i] == '%' && i + 1 < s.size()) {
-      if (s[i + 1] == 'u') {
-        int val = 0;
-        if (from_hex_to_i(s, i + 2, 4, val)) {
-          // 4 digits Unicode codes
-          char buff[4];
-          size_t len = to_utf8(val, buff);
-          if (len > 0) { result.append(buff, len); }
-          i += 5; // 'u0000'
-        } else {
-          result += s[i];
-        }
-      } else {
-        int val = 0;
-        if (from_hex_to_i(s, i + 1, 2, val)) {
-          // 2 digits hex codes
-          result += static_cast<char>(val);
-          i += 2; // '00'
-        } else {
-          result += s[i];
-        }
-      }
-    } else if (convert_plus_to_space && s[i] == '+') {
-      result += ' ';
-    } else {
-      result += s[i];
-    }
-  }
-
-  return result;
-}
-
-inline void read_file(const std::string &path, std::string &out) {
-  std::ifstream fs(path, std::ios_base::binary);
-  fs.seekg(0, std::ios_base::end);
-  auto size = fs.tellg();
-  fs.seekg(0);
-  out.resize(static_cast<size_t>(size));
-  fs.read(&out[0], static_cast<std::streamsize>(size));
-}
-
-inline std::string file_extension(const std::string &path) {
-  std::smatch m;
-  static auto re = std::regex("\\.([a-zA-Z0-9]+)$");
-  if (std::regex_search(path, m, re)) { return m[1].str(); }
-  return std::string();
-}
-
-inline bool is_space_or_tab(char c) { return c == ' ' || c == '\t'; }
-
-inline std::pair<size_t, size_t> trim(const char *b, const char *e, size_t left,
-                                      size_t right) {
-  while (b + left < e && is_space_or_tab(b[left])) {
-    left++;
-  }
-  while (right > 0 && is_space_or_tab(b[right - 1])) {
-    right--;
-  }
-  return std::make_pair(left, right);
-}
-
-inline std::string trim_copy(const std::string &s) {
-  auto r = trim(s.data(), s.data() + s.size(), 0, s.size());
-  return s.substr(r.first, r.second - r.first);
-}
-
-inline void split(const char *b, const char *e, char d,
-                  std::function<void(const char *, const char *)> fn) {
-  size_t i = 0;
-  size_t beg = 0;
-
-  while (e ? (b + i < e) : (b[i] != '\0')) {
-    if (b[i] == d) {
-      auto r = trim(b, e, beg, i);
-      if (r.first < r.second) { fn(&b[r.first], &b[r.second]); }
-      beg = i + 1;
-    }
-    i++;
-  }
-
-  if (i) {
-    auto r = trim(b, e, beg, i);
-    if (r.first < r.second) { fn(&b[r.first], &b[r.second]); }
-  }
-}
-
-inline stream_line_reader::stream_line_reader(Stream &strm, char *fixed_buffer,
-                                              size_t fixed_buffer_size)
-    : strm_(strm), fixed_buffer_(fixed_buffer),
-      fixed_buffer_size_(fixed_buffer_size) {}
-
-inline const char *stream_line_reader::ptr() const {
-  if (glowable_buffer_.empty()) {
-    return fixed_buffer_;
-  } else {
-    return glowable_buffer_.data();
-  }
-}
-
-inline size_t stream_line_reader::size() const {
-  if (glowable_buffer_.empty()) {
-    return fixed_buffer_used_size_;
-  } else {
-    return glowable_buffer_.size();
-  }
-}
-
-inline bool stream_line_reader::end_with_crlf() const {
-  auto end = ptr() + size();
-  return size() >= 2 && end[-2] == '\r' && end[-1] == '\n';
-}
-
-inline bool stream_line_reader::getline() {
-  fixed_buffer_used_size_ = 0;
-  glowable_buffer_.clear();
-
-  for (size_t i = 0;; i++) {
-    char byte;
-    auto n = strm_.read(&byte, 1);
-
-    if (n < 0) {
-      return false;
-    } else if (n == 0) {
-      if (i == 0) {
-        return false;
-      } else {
-        break;
-      }
-    }
-
-    append(byte);
-
-    if (byte == '\n') { break; }
-  }
-
-  return true;
-}
-
-inline void stream_line_reader::append(char c) {
-  if (fixed_buffer_used_size_ < fixed_buffer_size_ - 1) {
-    fixed_buffer_[fixed_buffer_used_size_++] = c;
-    fixed_buffer_[fixed_buffer_used_size_] = '\0';
-  } else {
-    if (glowable_buffer_.empty()) {
-      assert(fixed_buffer_[fixed_buffer_used_size_] == '\0');
-      glowable_buffer_.assign(fixed_buffer_, fixed_buffer_used_size_);
-    }
-    glowable_buffer_ += c;
-  }
-}
-
-inline int close_socket(socket_t sock) {
-#ifdef _WIN32
-  return closesocket(sock);
-#else
-  return close(sock);
-#endif
-}
-
-template <typename T> inline ssize_t handle_EINTR(T fn) {
-  ssize_t res = false;
-  while (true) {
-    res = fn();
-    if (res < 0 && errno == EINTR) { continue; }
-    break;
-  }
-  return res;
-}
-
-inline ssize_t select_read(socket_t sock, time_t sec, time_t usec) {
-#ifdef CPPHTTPLIB_USE_POLL
-  struct pollfd pfd_read;
-  pfd_read.fd = sock;
-  pfd_read.events = POLLIN;
-
-  auto timeout = static_cast<int>(sec * 1000 + usec / 1000);
-
-  return handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); });
-#else
-#ifndef _WIN32
-  if (sock >= FD_SETSIZE) { return 1; }
-#endif
-
-  fd_set fds;
-  FD_ZERO(&fds);
-  FD_SET(sock, &fds);
-
-  timeval tv;
-  tv.tv_sec = static_cast<long>(sec);
-  tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);
-
-  return handle_EINTR([&]() {
-    return select(static_cast<int>(sock + 1), &fds, nullptr, nullptr, &tv);
-  });
-#endif
-}
-
-inline ssize_t select_write(socket_t sock, time_t sec, time_t usec) {
-#ifdef CPPHTTPLIB_USE_POLL
-  struct pollfd pfd_read;
-  pfd_read.fd = sock;
-  pfd_read.events = POLLOUT;
-
-  auto timeout = static_cast<int>(sec * 1000 + usec / 1000);
-
-  return handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); });
-#else
-#ifndef _WIN32
-  if (sock >= FD_SETSIZE) { return 1; }
-#endif
-
-  fd_set fds;
-  FD_ZERO(&fds);
-  FD_SET(sock, &fds);
-
-  timeval tv;
-  tv.tv_sec = static_cast<long>(sec);
-  tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);
-
-  return handle_EINTR([&]() {
-    return select(static_cast<int>(sock + 1), nullptr, &fds, nullptr, &tv);
-  });
-#endif
-}
-
-inline bool wait_until_socket_is_ready(socket_t sock, time_t sec, time_t usec) {
-#ifdef CPPHTTPLIB_USE_POLL
-  struct pollfd pfd_read;
-  pfd_read.fd = sock;
-  pfd_read.events = POLLIN | POLLOUT;
-
-  auto timeout = static_cast<int>(sec * 1000 + usec / 1000);
-
-  auto poll_res = handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); });
-
-  if (poll_res > 0 && pfd_read.revents & (POLLIN | POLLOUT)) {
-    int error = 0;
-    socklen_t len = sizeof(error);
-    auto res = getsockopt(sock, SOL_SOCKET, SO_ERROR,
-                          reinterpret_cast<char *>(&error), &len);
-    return res >= 0 && !error;
-  }
-  return false;
-#else
-#ifndef _WIN32
-  if (sock >= FD_SETSIZE) { return false; }
-#endif
-
-  fd_set fdsr;
-  FD_ZERO(&fdsr);
-  FD_SET(sock, &fdsr);
-
-  auto fdsw = fdsr;
-  auto fdse = fdsr;
-
-  timeval tv;
-  tv.tv_sec = static_cast<long>(sec);
-  tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);
-
-  auto ret = handle_EINTR([&]() {
-    return select(static_cast<int>(sock + 1), &fdsr, &fdsw, &fdse, &tv);
-  });
-
-  if (ret > 0 && (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw))) {
-    int error = 0;
-    socklen_t len = sizeof(error);
-    return getsockopt(sock, SOL_SOCKET, SO_ERROR,
-                      reinterpret_cast<char *>(&error), &len) >= 0 &&
-           !error;
-  }
-  return false;
-#endif
-}
-
-class SocketStream : public Stream {
-public:
-  SocketStream(socket_t sock, time_t read_timeout_sec, time_t read_timeout_usec,
-               time_t write_timeout_sec, time_t write_timeout_usec);
-  ~SocketStream() override;
-
-  bool is_readable() const override;
-  bool is_writable() const override;
-  ssize_t read(char *ptr, size_t size) override;
-  ssize_t write(const char *ptr, size_t size) override;
-  void get_remote_ip_and_port(std::string &ip, int &port) const override;
-  socket_t socket() const override;
-
-private:
-  socket_t sock_;
-  time_t read_timeout_sec_;
-  time_t read_timeout_usec_;
-  time_t write_timeout_sec_;
-  time_t write_timeout_usec_;
-};
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-class SSLSocketStream : public Stream {
-public:
-  SSLSocketStream(socket_t sock, SSL *ssl, time_t read_timeout_sec,
-                  time_t read_timeout_usec, time_t write_timeout_sec,
-                  time_t write_timeout_usec);
-  ~SSLSocketStream() override;
-
-  bool is_readable() const override;
-  bool is_writable() const override;
-  ssize_t read(char *ptr, size_t size) override;
-  ssize_t write(const char *ptr, size_t size) override;
-  void get_remote_ip_and_port(std::string &ip, int &port) const override;
-  socket_t socket() const override;
-
-private:
-  socket_t sock_;
-  SSL *ssl_;
-  time_t read_timeout_sec_;
-  time_t read_timeout_usec_;
-  time_t write_timeout_sec_;
-  time_t write_timeout_usec_;
-};
-#endif
-
-inline bool keep_alive(socket_t sock, time_t keep_alive_timeout_sec) {
-  using namespace std::chrono;
-  auto start = steady_clock::now();
-  while (true) {
-    auto val = select_read(sock, 0, 10000);
-    if (val < 0) {
-      return false;
-    } else if (val == 0) {
-      auto current = steady_clock::now();
-      auto duration = duration_cast<milliseconds>(current - start);
-      auto timeout = keep_alive_timeout_sec * 1000;
-      if (duration.count() > timeout) { return false; }
-      std::this_thread::sleep_for(std::chrono::milliseconds(1));
-    } else {
-      return true;
-    }
-  }
-}
-
-template <typename T>
-inline bool
-process_server_socket_core(socket_t sock, size_t keep_alive_max_count,
-                           time_t keep_alive_timeout_sec, T callback) {
-  assert(keep_alive_max_count > 0);
-  auto ret = false;
-  auto count = keep_alive_max_count;
-  while (count > 0 && keep_alive(sock, keep_alive_timeout_sec)) {
-    auto close_connection = count == 1;
-    auto connection_closed = false;
-    ret = callback(close_connection, connection_closed);
-    if (!ret || connection_closed) { break; }
-    count--;
-  }
-  return ret;
-}
-
-template <typename T>
-inline bool
-process_server_socket(socket_t sock, size_t keep_alive_max_count,
-                      time_t keep_alive_timeout_sec, time_t read_timeout_sec,
-                      time_t read_timeout_usec, time_t write_timeout_sec,
-                      time_t write_timeout_usec, T callback) {
-  return process_server_socket_core(
-      sock, keep_alive_max_count, keep_alive_timeout_sec,
-      [&](bool close_connection, bool &connection_closed) {
-        SocketStream strm(sock, read_timeout_sec, read_timeout_usec,
-                          write_timeout_sec, write_timeout_usec);
-        return callback(strm, close_connection, connection_closed);
-      });
-}
-
-inline bool process_client_socket(socket_t sock, time_t read_timeout_sec,
-                                  time_t read_timeout_usec,
-                                  time_t write_timeout_sec,
-                                  time_t write_timeout_usec,
-                                  std::function<bool(Stream &)> callback) {
-  SocketStream strm(sock, read_timeout_sec, read_timeout_usec,
-                    write_timeout_sec, write_timeout_usec);
-  return callback(strm);
-}
-
-inline int shutdown_socket(socket_t sock) {
-#ifdef _WIN32
-  return shutdown(sock, SD_BOTH);
-#else
-  return shutdown(sock, SHUT_RDWR);
-#endif
-}
-
-template <typename BindOrConnect>
-socket_t create_socket(const char *host, int port, int address_family,
-                       int socket_flags, bool tcp_nodelay,
-                       SocketOptions socket_options,
-                       BindOrConnect bind_or_connect) {
-  // Get address info
-  struct addrinfo hints;
-  struct addrinfo *result;
-
-  memset(&hints, 0, sizeof(struct addrinfo));
-  hints.ai_family = address_family;
-  hints.ai_socktype = SOCK_STREAM;
-  hints.ai_flags = socket_flags;
-  hints.ai_protocol = 0;
-
-  auto service = std::to_string(port);
-
-  if (getaddrinfo(host, service.c_str(), &hints, &result)) {
-#ifdef __linux__
-    res_init();
-#endif
-    return INVALID_SOCKET;
-  }
-
-  for (auto rp = result; rp; rp = rp->ai_next) {
-    // Create a socket
-#ifdef _WIN32
-    auto sock =
-        WSASocketW(rp->ai_family, rp->ai_socktype, rp->ai_protocol, nullptr, 0,
-                   WSA_FLAG_NO_HANDLE_INHERIT | WSA_FLAG_OVERLAPPED);
-    /**
-     * Since the WSA_FLAG_NO_HANDLE_INHERIT is only supported on Windows 7 SP1
-     * and above the socket creation fails on older Windows Systems.
-     *
-     * Let's try to create a socket the old way in this case.
-     *
-     * Reference:
-     * https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsasocketa
-     *
-     * WSA_FLAG_NO_HANDLE_INHERIT:
-     * This flag is supported on Windows 7 with SP1, Windows Server 2008 R2 with
-     * SP1, and later
-     *
-     */
-    if (sock == INVALID_SOCKET) {
-      sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
-    }
-#else
-    auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
-#endif
-    if (sock == INVALID_SOCKET) { continue; }
-
-#ifndef _WIN32
-    if (fcntl(sock, F_SETFD, FD_CLOEXEC) == -1) { continue; }
-#endif
-
-    if (tcp_nodelay) {
-      int yes = 1;
-      setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<char *>(&yes),
-                 sizeof(yes));
-    }
-
-    if (socket_options) { socket_options(sock); }
-
-    if (rp->ai_family == AF_INET6) {
-      int no = 0;
-      setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, reinterpret_cast<char *>(&no),
-                 sizeof(no));
-    }
-
-    // bind or connect
-    if (bind_or_connect(sock, *rp)) {
-      freeaddrinfo(result);
-      return sock;
-    }
-
-    close_socket(sock);
-  }
-
-  freeaddrinfo(result);
-  return INVALID_SOCKET;
-}
-
-inline void set_nonblocking(socket_t sock, bool nonblocking) {
-#ifdef _WIN32
-  auto flags = nonblocking ? 1UL : 0UL;
-  ioctlsocket(sock, FIONBIO, &flags);
-#else
-  auto flags = fcntl(sock, F_GETFL, 0);
-  fcntl(sock, F_SETFL,
-        nonblocking ? (flags | O_NONBLOCK) : (flags & (~O_NONBLOCK)));
-#endif
-}
-
-inline bool is_connection_error() {
-#ifdef _WIN32
-  return WSAGetLastError() != WSAEWOULDBLOCK;
-#else
-  return errno != EINPROGRESS;
-#endif
-}
-
-inline bool bind_ip_address(socket_t sock, const char *host) {
-  struct addrinfo hints;
-  struct addrinfo *result;
-
-  memset(&hints, 0, sizeof(struct addrinfo));
-  hints.ai_family = AF_UNSPEC;
-  hints.ai_socktype = SOCK_STREAM;
-  hints.ai_protocol = 0;
-
-  if (getaddrinfo(host, "0", &hints, &result)) { return false; }
-
-  auto ret = false;
-  for (auto rp = result; rp; rp = rp->ai_next) {
-    const auto &ai = *rp;
-    if (!::bind(sock, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen))) {
-      ret = true;
-      break;
-    }
-  }
-
-  freeaddrinfo(result);
-  return ret;
-}
-
-#if !defined _WIN32 && !defined ANDROID
-#define USE_IF2IP
-#endif
-
-#ifdef USE_IF2IP
-inline std::string if2ip(const std::string &ifn) {
-  struct ifaddrs *ifap;
-  getifaddrs(&ifap);
-  for (auto ifa = ifap; ifa; ifa = ifa->ifa_next) {
-    if (ifa->ifa_addr && ifn == ifa->ifa_name) {
-      if (ifa->ifa_addr->sa_family == AF_INET) {
-        auto sa = reinterpret_cast<struct sockaddr_in *>(ifa->ifa_addr);
-        char buf[INET_ADDRSTRLEN];
-        if (inet_ntop(AF_INET, &sa->sin_addr, buf, INET_ADDRSTRLEN)) {
-          freeifaddrs(ifap);
-          return std::string(buf, INET_ADDRSTRLEN);
-        }
-      }
-    }
-  }
-  freeifaddrs(ifap);
-  return std::string();
-}
-#endif
-
-inline socket_t create_client_socket(
-    const char *host, int port, int address_family, bool tcp_nodelay,
-    SocketOptions socket_options, time_t connection_timeout_sec,
-    time_t connection_timeout_usec, time_t read_timeout_sec,
-    time_t read_timeout_usec, time_t write_timeout_sec,
-    time_t write_timeout_usec, const std::string &intf, Error &error) {
-  auto sock = create_socket(
-      host, port, address_family, 0, tcp_nodelay, std::move(socket_options),
-      [&](socket_t sock2, struct addrinfo &ai) -> bool {
-        if (!intf.empty()) {
-#ifdef USE_IF2IP
-          auto ip = if2ip(intf);
-          if (ip.empty()) { ip = intf; }
-          if (!bind_ip_address(sock2, ip.c_str())) {
-            error = Error::BindIPAddress;
-            return false;
-          }
-#endif
-        }
-
-        set_nonblocking(sock2, true);
-
-        auto ret =
-            ::connect(sock2, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen));
-
-        if (ret < 0) {
-          if (is_connection_error() ||
-              !wait_until_socket_is_ready(sock2, connection_timeout_sec,
-                                          connection_timeout_usec)) {
-            error = Error::Connection;
-            return false;
-          }
-        }
-
-        set_nonblocking(sock2, false);
-
-        {
-          timeval tv;
-          tv.tv_sec = static_cast<long>(read_timeout_sec);
-          tv.tv_usec = static_cast<decltype(tv.tv_usec)>(read_timeout_usec);
-          setsockopt(sock2, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv));
-        }
-        {
-          timeval tv;
-          tv.tv_sec = static_cast<long>(write_timeout_sec);
-          tv.tv_usec = static_cast<decltype(tv.tv_usec)>(write_timeout_usec);
-          setsockopt(sock2, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv));
-        }
-
-        error = Error::Success;
-        return true;
-      });
-
-  if (sock != INVALID_SOCKET) {
-    error = Error::Success;
-  } else {
-    if (error == Error::Success) { error = Error::Connection; }
-  }
-
-  return sock;
-}
-
-inline void get_remote_ip_and_port(const struct sockaddr_storage &addr,
-                                   socklen_t addr_len, std::string &ip,
-                                   int &port) {
-  if (addr.ss_family == AF_INET) {
-    port = ntohs(reinterpret_cast<const struct sockaddr_in *>(&addr)->sin_port);
-  } else if (addr.ss_family == AF_INET6) {
-    port =
-        ntohs(reinterpret_cast<const struct sockaddr_in6 *>(&addr)->sin6_port);
-  }
-
-  std::array<char, NI_MAXHOST> ipstr{};
-  if (!getnameinfo(reinterpret_cast<const struct sockaddr *>(&addr), addr_len,
-                   ipstr.data(), static_cast<socklen_t>(ipstr.size()), nullptr,
-                   0, NI_NUMERICHOST)) {
-    ip = ipstr.data();
-  }
-}
-
-inline void get_remote_ip_and_port(socket_t sock, std::string &ip, int &port) {
-  struct sockaddr_storage addr;
-  socklen_t addr_len = sizeof(addr);
-
-  if (!getpeername(sock, reinterpret_cast<struct sockaddr *>(&addr),
-                   &addr_len)) {
-    get_remote_ip_and_port(addr, addr_len, ip, port);
-  }
-}
-
-inline constexpr unsigned int str2tag_core(const char *s, size_t l,
-                                           unsigned int h) {
-  return (l == 0) ? h
-                  : str2tag_core(s + 1, l - 1,
-                                 (h * 33) ^ static_cast<unsigned char>(*s));
-}
-
-inline unsigned int str2tag(const std::string &s) {
-  return str2tag_core(s.data(), s.size(), 0);
-}
-
-namespace udl {
-
-inline constexpr unsigned int operator"" _t(const char *s, size_t l) {
-  return str2tag_core(s, l, 0);
-}
-
-} // namespace udl
-
-inline const char *
-find_content_type(const std::string &path,
-                  const std::map<std::string, std::string> &user_data) {
-  auto ext = file_extension(path);
-
-  auto it = user_data.find(ext);
-  if (it != user_data.end()) { return it->second.c_str(); }
-
-  using udl::operator""_t;
-
-  switch (str2tag(ext)) {
-  default: return nullptr;
-  case "css"_t: return "text/css";
-  case "csv"_t: return "text/csv";
-  case "txt"_t: return "text/plain";
-  case "vtt"_t: return "text/vtt";
-  case "htm"_t:
-  case "html"_t: return "text/html";
-
-  case "apng"_t: return "image/apng";
-  case "avif"_t: return "image/avif";
-  case "bmp"_t: return "image/bmp";
-  case "gif"_t: return "image/gif";
-  case "png"_t: return "image/png";
-  case "svg"_t: return "image/svg+xml";
-  case "webp"_t: return "image/webp";
-  case "ico"_t: return "image/x-icon";
-  case "tif"_t: return "image/tiff";
-  case "tiff"_t: return "image/tiff";
-  case "jpg"_t:
-  case "jpeg"_t: return "image/jpeg";
-
-  case "mp4"_t: return "video/mp4";
-  case "mpeg"_t: return "video/mpeg";
-  case "webm"_t: return "video/webm";
-
-  case "mp3"_t: return "audio/mp3";
-  case "mpga"_t: return "audio/mpeg";
-  case "weba"_t: return "audio/webm";
-  case "wav"_t: return "audio/wave";
-
-  case "otf"_t: return "font/otf";
-  case "ttf"_t: return "font/ttf";
-  case "woff"_t: return "font/woff";
-  case "woff2"_t: return "font/woff2";
-
-  case "7z"_t: return "application/x-7z-compressed";
-  case "atom"_t: return "application/atom+xml";
-  case "pdf"_t: return "application/pdf";
-  case "js"_t:
-  case "mjs"_t: return "application/javascript";
-  case "json"_t: return "application/json";
-  case "rss"_t: return "application/rss+xml";
-  case "tar"_t: return "application/x-tar";
-  case "xht"_t:
-  case "xhtml"_t: return "application/xhtml+xml";
-  case "xslt"_t: return "application/xslt+xml";
-  case "xml"_t: return "application/xml";
-  case "gz"_t: return "application/gzip";
-  case "zip"_t: return "application/zip";
-  case "wasm"_t: return "application/wasm";
-  }
-}
-
-inline const char *status_message(int status) {
-  switch (status) {
-  case 100: return "Continue";
-  case 101: return "Switching Protocol";
-  case 102: return "Processing";
-  case 103: return "Early Hints";
-  case 200: return "OK";
-  case 201: return "Created";
-  case 202: return "Accepted";
-  case 203: return "Non-Authoritative Information";
-  case 204: return "No Content";
-  case 205: return "Reset Content";
-  case 206: return "Partial Content";
-  case 207: return "Multi-Status";
-  case 208: return "Already Reported";
-  case 226: return "IM Used";
-  case 300: return "Multiple Choice";
-  case 301: return "Moved Permanently";
-  case 302: return "Found";
-  case 303: return "See Other";
-  case 304: return "Not Modified";
-  case 305: return "Use Proxy";
-  case 306: return "unused";
-  case 307: return "Temporary Redirect";
-  case 308: return "Permanent Redirect";
-  case 400: return "Bad Request";
-  case 401: return "Unauthorized";
-  case 402: return "Payment Required";
-  case 403: return "Forbidden";
-  case 404: return "Not Found";
-  case 405: return "Method Not Allowed";
-  case 406: return "Not Acceptable";
-  case 407: return "Proxy Authentication Required";
-  case 408: return "Request Timeout";
-  case 409: return "Conflict";
-  case 410: return "Gone";
-  case 411: return "Length Required";
-  case 412: return "Precondition Failed";
-  case 413: return "Payload Too Large";
-  case 414: return "URI Too Long";
-  case 415: return "Unsupported Media Type";
-  case 416: return "Range Not Satisfiable";
-  case 417: return "Expectation Failed";
-  case 418: return "I'm a teapot";
-  case 421: return "Misdirected Request";
-  case 422: return "Unprocessable Entity";
-  case 423: return "Locked";
-  case 424: return "Failed Dependency";
-  case 425: return "Too Early";
-  case 426: return "Upgrade Required";
-  case 428: return "Precondition Required";
-  case 429: return "Too Many Requests";
-  case 431: return "Request Header Fields Too Large";
-  case 451: return "Unavailable For Legal Reasons";
-  case 501: return "Not Implemented";
-  case 502: return "Bad Gateway";
-  case 503: return "Service Unavailable";
-  case 504: return "Gateway Timeout";
-  case 505: return "HTTP Version Not Supported";
-  case 506: return "Variant Also Negotiates";
-  case 507: return "Insufficient Storage";
-  case 508: return "Loop Detected";
-  case 510: return "Not Extended";
-  case 511: return "Network Authentication Required";
-
-  default:
-  case 500: return "Internal Server Error";
-  }
-}
-
-inline bool can_compress_content_type(const std::string &content_type) {
-  return (!content_type.find("text/") && content_type != "text/event-stream") ||
-         content_type == "image/svg+xml" ||
-         content_type == "application/javascript" ||
-         content_type == "application/json" ||
-         content_type == "application/xml" ||
-         content_type == "application/xhtml+xml";
-}
-
-inline EncodingType encoding_type(const Request &req, const Response &res) {
-  auto ret =
-      detail::can_compress_content_type(res.get_header_value("Content-Type"));
-  if (!ret) { return EncodingType::None; }
-
-  const auto &s = req.get_header_value("Accept-Encoding");
-  (void)(s);
-
-#ifdef CPPHTTPLIB_BROTLI_SUPPORT
-  // TODO: 'Accept-Encoding' has br, not br;q=0
-  ret = s.find("br") != std::string::npos;
-  if (ret) { return EncodingType::Brotli; }
-#endif
-
-#ifdef CPPHTTPLIB_ZLIB_SUPPORT
-  // TODO: 'Accept-Encoding' has gzip, not gzip;q=0
-  ret = s.find("gzip") != std::string::npos;
-  if (ret) { return EncodingType::Gzip; }
-#endif
-
-  return EncodingType::None;
-}
-
-inline bool nocompressor::compress(const char *data, size_t data_length,
-                                   bool /*last*/, Callback callback) {
-  if (!data_length) { return true; }
-  return callback(data, data_length);
-}
-
-#ifdef CPPHTTPLIB_ZLIB_SUPPORT
-inline gzip_compressor::gzip_compressor() {
-  std::memset(&strm_, 0, sizeof(strm_));
-  strm_.zalloc = Z_NULL;
-  strm_.zfree = Z_NULL;
-  strm_.opaque = Z_NULL;
-
-  is_valid_ = deflateInit2(&strm_, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8,
-                           Z_DEFAULT_STRATEGY) == Z_OK;
-}
-
-inline gzip_compressor::~gzip_compressor() { deflateEnd(&strm_); }
-
-inline bool gzip_compressor::compress(const char *data, size_t data_length,
-                                      bool last, Callback callback) {
-  assert(is_valid_);
-
-  do {
-    constexpr size_t max_avail_in =
-        std::numeric_limits<decltype(strm_.avail_in)>::max();
-
-    strm_.avail_in = static_cast<decltype(strm_.avail_in)>(
-        std::min(data_length, max_avail_in));
-    strm_.next_in = const_cast<Bytef *>(reinterpret_cast<const Bytef *>(data));
-
-    data_length -= strm_.avail_in;
-    data += strm_.avail_in;
-
-    auto flush = (last && data_length == 0) ? Z_FINISH : Z_NO_FLUSH;
-    int ret = Z_OK;
-
-    std::array<char, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};
-    do {
-      strm_.avail_out = static_cast<uInt>(buff.size());
-      strm_.next_out = reinterpret_cast<Bytef *>(buff.data());
-
-      ret = deflate(&strm_, flush);
-      if (ret == Z_STREAM_ERROR) { return false; }
-
-      if (!callback(buff.data(), buff.size() - strm_.avail_out)) {
-        return false;
-      }
-    } while (strm_.avail_out == 0);
-
-    assert((flush == Z_FINISH && ret == Z_STREAM_END) ||
-           (flush == Z_NO_FLUSH && ret == Z_OK));
-    assert(strm_.avail_in == 0);
-
-  } while (data_length > 0);
-
-  return true;
-}
-
-inline gzip_decompressor::gzip_decompressor() {
-  std::memset(&strm_, 0, sizeof(strm_));
-  strm_.zalloc = Z_NULL;
-  strm_.zfree = Z_NULL;
-  strm_.opaque = Z_NULL;
-
-  // 15 is the value of wbits, which should be at the maximum possible value
-  // to ensure that any gzip stream can be decoded. The offset of 32 specifies
-  // that the stream type should be automatically detected either gzip or
-  // deflate.
-  is_valid_ = inflateInit2(&strm_, 32 + 15) == Z_OK;
-}
-
-inline gzip_decompressor::~gzip_decompressor() { inflateEnd(&strm_); }
-
-inline bool gzip_decompressor::is_valid() const { return is_valid_; }
-
-inline bool gzip_decompressor::decompress(const char *data, size_t data_length,
-                                          Callback callback) {
-  assert(is_valid_);
-
-  int ret = Z_OK;
-
-  do {
-    constexpr size_t max_avail_in =
-        std::numeric_limits<decltype(strm_.avail_in)>::max();
-
-    strm_.avail_in = static_cast<decltype(strm_.avail_in)>(
-        std::min(data_length, max_avail_in));
-    strm_.next_in = const_cast<Bytef *>(reinterpret_cast<const Bytef *>(data));
-
-    data_length -= strm_.avail_in;
-    data += strm_.avail_in;
-
-    std::array<char, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};
-    while (strm_.avail_in > 0) {
-      strm_.avail_out = static_cast<uInt>(buff.size());
-      strm_.next_out = reinterpret_cast<Bytef *>(buff.data());
-
-      ret = inflate(&strm_, Z_NO_FLUSH);
-      assert(ret != Z_STREAM_ERROR);
-      switch (ret) {
-      case Z_NEED_DICT:
-      case Z_DATA_ERROR:
-      case Z_MEM_ERROR: inflateEnd(&strm_); return false;
-      }
-
-      if (!callback(buff.data(), buff.size() - strm_.avail_out)) {
-        return false;
-      }
-    }
-
-    if (ret != Z_OK && ret != Z_STREAM_END) return false;
-
-  } while (data_length > 0);
-
-  return true;
-}
-#endif
-
-#ifdef CPPHTTPLIB_BROTLI_SUPPORT
-inline brotli_compressor::brotli_compressor() {
-  state_ = BrotliEncoderCreateInstance(nullptr, nullptr, nullptr);
-}
-
-inline brotli_compressor::~brotli_compressor() {
-  BrotliEncoderDestroyInstance(state_);
-}
-
-inline bool brotli_compressor::compress(const char *data, size_t data_length,
-                                        bool last, Callback callback) {
-  std::array<uint8_t, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};
-
-  auto operation = last ? BROTLI_OPERATION_FINISH : BROTLI_OPERATION_PROCESS;
-  auto available_in = data_length;
-  auto next_in = reinterpret_cast<const uint8_t *>(data);
-
-  for (;;) {
-    if (last) {
-      if (BrotliEncoderIsFinished(state_)) { break; }
-    } else {
-      if (!available_in) { break; }
-    }
-
-    auto available_out = buff.size();
-    auto next_out = buff.data();
-
-    if (!BrotliEncoderCompressStream(state_, operation, &available_in, &next_in,
-                                     &available_out, &next_out, nullptr)) {
-      return false;
-    }
-
-    auto output_bytes = buff.size() - available_out;
-    if (output_bytes) {
-      callback(reinterpret_cast<const char *>(buff.data()), output_bytes);
-    }
-  }
-
-  return true;
-}
-
-inline brotli_decompressor::brotli_decompressor() {
-  decoder_s = BrotliDecoderCreateInstance(0, 0, 0);
-  decoder_r = decoder_s ? BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT
-                        : BROTLI_DECODER_RESULT_ERROR;
-}
-
-inline brotli_decompressor::~brotli_decompressor() {
-  if (decoder_s) { BrotliDecoderDestroyInstance(decoder_s); }
-}
-
-inline bool brotli_decompressor::is_valid() const { return decoder_s; }
-
-inline bool brotli_decompressor::decompress(const char *data,
-                                            size_t data_length,
-                                            Callback callback) {
-  if (decoder_r == BROTLI_DECODER_RESULT_SUCCESS ||
-      decoder_r == BROTLI_DECODER_RESULT_ERROR) {
-    return 0;
-  }
-
-  const uint8_t *next_in = (const uint8_t *)data;
-  size_t avail_in = data_length;
-  size_t total_out;
-
-  decoder_r = BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT;
-
-  std::array<char, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};
-  while (decoder_r == BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT) {
-    char *next_out = buff.data();
-    size_t avail_out = buff.size();
-
-    decoder_r = BrotliDecoderDecompressStream(
-        decoder_s, &avail_in, &next_in, &avail_out,
-        reinterpret_cast<uint8_t **>(&next_out), &total_out);
-
-    if (decoder_r == BROTLI_DECODER_RESULT_ERROR) { return false; }
-
-    if (!callback(buff.data(), buff.size() - avail_out)) { return false; }
-  }
-
-  return decoder_r == BROTLI_DECODER_RESULT_SUCCESS ||
-         decoder_r == BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT;
-}
-#endif
-
-inline bool has_header(const Headers &headers, const char *key) {
-  return headers.find(key) != headers.end();
-}
-
-inline const char *get_header_value(const Headers &headers, const char *key,
-                                    size_t id, const char *def) {
-  auto rng = headers.equal_range(key);
-  auto it = rng.first;
-  std::advance(it, static_cast<ssize_t>(id));
-  if (it != rng.second) { return it->second.c_str(); }
-  return def;
-}
-
-template <typename T>
-inline bool parse_header(const char *beg, const char *end, T fn) {
-  // Skip trailing spaces and tabs.
-  while (beg < end && is_space_or_tab(end[-1])) {
-    end--;
-  }
-
-  auto p = beg;
-  while (p < end && *p != ':') {
-    p++;
-  }
-
-  if (p == end) { return false; }
-
-  auto key_end = p;
-
-  if (*p++ != ':') { return false; }
-
-  while (p < end && is_space_or_tab(*p)) {
-    p++;
-  }
-
-  if (p < end) {
-    fn(std::string(beg, key_end), decode_url(std::string(p, end), false));
-    return true;
-  }
-
-  return false;
-}
-
-inline bool read_headers(Stream &strm, Headers &headers) {
-  const auto bufsiz = 2048;
-  char buf[bufsiz];
-  stream_line_reader line_reader(strm, buf, bufsiz);
-
-  for (;;) {
-    if (!line_reader.getline()) { return false; }
-
-    // Check if the line ends with CRLF.
-    if (line_reader.end_with_crlf()) {
-      // Blank line indicates end of headers.
-      if (line_reader.size() == 2) { break; }
-    } else {
-      continue; // Skip invalid line.
-    }
-
-    // Exclude CRLF
-    auto end = line_reader.ptr() + line_reader.size() - 2;
-
-    parse_header(line_reader.ptr(), end,
-                 [&](std::string &&key, std::string &&val) {
-                   headers.emplace(std::move(key), std::move(val));
-                 });
-  }
-
-  return true;
-}
-
-inline bool read_content_with_length(Stream &strm, uint64_t len,
-                                     Progress progress,
-                                     ContentReceiverWithProgress out) {
-  char buf[CPPHTTPLIB_RECV_BUFSIZ];
-
-  uint64_t r = 0;
-  while (r < len) {
-    auto read_len = static_cast<size_t>(len - r);
-    auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ));
-    if (n <= 0) { return false; }
-
-    if (!out(buf, static_cast<size_t>(n), r, len)) { return false; }
-    r += static_cast<uint64_t>(n);
-
-    if (progress) {
-      if (!progress(r, len)) { return false; }
-    }
-  }
-
-  return true;
-}
-
-inline void skip_content_with_length(Stream &strm, uint64_t len) {
-  char buf[CPPHTTPLIB_RECV_BUFSIZ];
-  uint64_t r = 0;
-  while (r < len) {
-    auto read_len = static_cast<size_t>(len - r);
-    auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ));
-    if (n <= 0) { return; }
-    r += static_cast<uint64_t>(n);
-  }
-}
-
-inline bool read_content_without_length(Stream &strm,
-                                        ContentReceiverWithProgress out) {
-  char buf[CPPHTTPLIB_RECV_BUFSIZ];
-  uint64_t r = 0;
-  for (;;) {
-    auto n = strm.read(buf, CPPHTTPLIB_RECV_BUFSIZ);
-    if (n < 0) {
-      return false;
-    } else if (n == 0) {
-      return true;
-    }
-
-    if (!out(buf, static_cast<size_t>(n), r, 0)) { return false; }
-    r += static_cast<uint64_t>(n);
-  }
-
-  return true;
-}
-
-inline bool read_content_chunked(Stream &strm,
-                                 ContentReceiverWithProgress out) {
-  const auto bufsiz = 16;
-  char buf[bufsiz];
-
-  stream_line_reader line_reader(strm, buf, bufsiz);
-
-  if (!line_reader.getline()) { return false; }
-
-  unsigned long chunk_len;
-  while (true) {
-    char *end_ptr;
-
-    chunk_len = std::strtoul(line_reader.ptr(), &end_ptr, 16);
-
-    if (end_ptr == line_reader.ptr()) { return false; }
-    if (chunk_len == ULONG_MAX) { return false; }
-
-    if (chunk_len == 0) { break; }
-
-    if (!read_content_with_length(strm, chunk_len, nullptr, out)) {
-      return false;
-    }
-
-    if (!line_reader.getline()) { return false; }
-
-    if (strcmp(line_reader.ptr(), "\r\n")) { break; }
-
-    if (!line_reader.getline()) { return false; }
-  }
-
-  if (chunk_len == 0) {
-    // Reader terminator after chunks
-    if (!line_reader.getline() || strcmp(line_reader.ptr(), "\r\n"))
-      return false;
-  }
-
-  return true;
-}
-
-inline bool is_chunked_transfer_encoding(const Headers &headers) {
-  return !strcasecmp(get_header_value(headers, "Transfer-Encoding", 0, ""),
-                     "chunked");
-}
-
-template <typename T, typename U>
-bool prepare_content_receiver(T &x, int &status,
-                              ContentReceiverWithProgress receiver,
-                              bool decompress, U callback) {
-  if (decompress) {
-    std::string encoding = x.get_header_value("Content-Encoding");
-    std::unique_ptr<decompressor> decompressor;
-
-    if (encoding.find("gzip") != std::string::npos ||
-        encoding.find("deflate") != std::string::npos) {
-#ifdef CPPHTTPLIB_ZLIB_SUPPORT
-      decompressor = detail::make_unique<gzip_decompressor>();
-#else
-      status = 415;
-      return false;
-#endif
-    } else if (encoding.find("br") != std::string::npos) {
-#ifdef CPPHTTPLIB_BROTLI_SUPPORT
-      decompressor = detail::make_unique<brotli_decompressor>();
-#else
-      status = 415;
-      return false;
-#endif
-    }
-
-    if (decompressor) {
-      if (decompressor->is_valid()) {
-        ContentReceiverWithProgress out = [&](const char *buf, size_t n,
-                                              uint64_t off, uint64_t len) {
-          return decompressor->decompress(buf, n,
-                                          [&](const char *buf2, size_t n2) {
-                                            return receiver(buf2, n2, off, len);
-                                          });
-        };
-        return callback(std::move(out));
-      } else {
-        status = 500;
-        return false;
-      }
-    }
-  }
-
-  ContentReceiverWithProgress out = [&](const char *buf, size_t n, uint64_t off,
-                                        uint64_t len) {
-    return receiver(buf, n, off, len);
-  };
-  return callback(std::move(out));
-}
-
-template <typename T>
-bool read_content(Stream &strm, T &x, size_t payload_max_length, int &status,
-                  Progress progress, ContentReceiverWithProgress receiver,
-                  bool decompress) {
-  return prepare_content_receiver(
-      x, status, std::move(receiver), decompress,
-      [&](const ContentReceiverWithProgress &out) {
-        auto ret = true;
-        auto exceed_payload_max_length = false;
-
-        if (is_chunked_transfer_encoding(x.headers)) {
-          ret = read_content_chunked(strm, out);
-        } else if (!has_header(x.headers, "Content-Length")) {
-          ret = read_content_without_length(strm, out);
-        } else {
-          auto len = get_header_value<uint64_t>(x.headers, "Content-Length");
-          if (len > payload_max_length) {
-            exceed_payload_max_length = true;
-            skip_content_with_length(strm, len);
-            ret = false;
-          } else if (len > 0) {
-            ret = read_content_with_length(strm, len, std::move(progress), out);
-          }
-        }
-
-        if (!ret) { status = exceed_payload_max_length ? 413 : 400; }
-        return ret;
-      });
-}
-
-inline ssize_t write_headers(Stream &strm, const Headers &headers) {
-  ssize_t write_len = 0;
-  for (const auto &x : headers) {
-    auto len =
-        strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str());
-    if (len < 0) { return len; }
-    write_len += len;
-  }
-  auto len = strm.write("\r\n");
-  if (len < 0) { return len; }
-  write_len += len;
-  return write_len;
-}
-
-inline bool write_data(Stream &strm, const char *d, size_t l) {
-  size_t offset = 0;
-  while (offset < l) {
-    auto length = strm.write(d + offset, l - offset);
-    if (length < 0) { return false; }
-    offset += static_cast<size_t>(length);
-  }
-  return true;
-}
-
-template <typename T>
-inline bool write_content(Stream &strm, const ContentProvider &content_provider,
-                          size_t offset, size_t length, T is_shutting_down,
-                          Error &error) {
-  size_t end_offset = offset + length;
-  auto ok = true;
-  DataSink data_sink;
-
-  data_sink.write = [&](const char *d, size_t l) -> bool {
-    if (ok) {
-      if (write_data(strm, d, l)) {
-        offset += l;
-      } else {
-        ok = false;
-      }
-    }
-    return ok;
-  };
-
-  data_sink.is_writable = [&](void) { return ok && strm.is_writable(); };
-
-  while (offset < end_offset && !is_shutting_down()) {
-    if (!content_provider(offset, end_offset - offset, data_sink)) {
-      error = Error::Canceled;
-      return false;
-    }
-    if (!ok) {
-      error = Error::Write;
-      return false;
-    }
-  }
-
-  error = Error::Success;
-  return true;
-}
-
-template <typename T>
-inline bool write_content(Stream &strm, const ContentProvider &content_provider,
-                          size_t offset, size_t length,
-                          const T &is_shutting_down) {
-  auto error = Error::Success;
-  return write_content(strm, content_provider, offset, length, is_shutting_down,
-                       error);
-}
-
-template <typename T>
-inline bool
-write_content_without_length(Stream &strm,
-                             const ContentProvider &content_provider,
-                             const T &is_shutting_down) {
-  size_t offset = 0;
-  auto data_available = true;
-  auto ok = true;
-  DataSink data_sink;
-
-  data_sink.write = [&](const char *d, size_t l) -> bool {
-    if (ok) {
-      offset += l;
-      if (!write_data(strm, d, l)) { ok = false; }
-    }
-    return ok;
-  };
-
-  data_sink.done = [&](void) { data_available = false; };
-
-  data_sink.is_writable = [&](void) { return ok && strm.is_writable(); };
-
-  while (data_available && !is_shutting_down()) {
-    if (!content_provider(offset, 0, data_sink)) { return false; }
-    if (!ok) { return false; }
-  }
-  return true;
-}
-
-template <typename T, typename U>
-inline bool
-write_content_chunked(Stream &strm, const ContentProvider &content_provider,
-                      const T &is_shutting_down, U &compressor, Error &error) {
-  size_t offset = 0;
-  auto data_available = true;
-  auto ok = true;
-  DataSink data_sink;
-
-  data_sink.write = [&](const char *d, size_t l) -> bool {
-    if (ok) {
-      data_available = l > 0;
-      offset += l;
-
-      std::string payload;
-      if (compressor.compress(d, l, false,
-                              [&](const char *data, size_t data_len) {
-                                payload.append(data, data_len);
-                                return true;
-                              })) {
-        if (!payload.empty()) {
-          // Emit chunked response header and footer for each chunk
-          auto chunk =
-              from_i_to_hex(payload.size()) + "\r\n" + payload + "\r\n";
-          if (!write_data(strm, chunk.data(), chunk.size())) { ok = false; }
-        }
-      } else {
-        ok = false;
-      }
-    }
-    return ok;
-  };
-
-  data_sink.done = [&](void) {
-    if (!ok) { return; }
-
-    data_available = false;
-
-    std::string payload;
-    if (!compressor.compress(nullptr, 0, true,
-                             [&](const char *data, size_t data_len) {
-                               payload.append(data, data_len);
-                               return true;
-                             })) {
-      ok = false;
-      return;
-    }
-
-    if (!payload.empty()) {
-      // Emit chunked response header and footer for each chunk
-      auto chunk = from_i_to_hex(payload.size()) + "\r\n" + payload + "\r\n";
-      if (!write_data(strm, chunk.data(), chunk.size())) {
-        ok = false;
-        return;
-      }
-    }
-
-    static const std::string done_marker("0\r\n\r\n");
-    if (!write_data(strm, done_marker.data(), done_marker.size())) {
-      ok = false;
-    }
-  };
-
-  data_sink.is_writable = [&](void) { return ok && strm.is_writable(); };
-
-  while (data_available && !is_shutting_down()) {
-    if (!content_provider(offset, 0, data_sink)) {
-      error = Error::Canceled;
-      return false;
-    }
-    if (!ok) {
-      error = Error::Write;
-      return false;
-    }
-  }
-
-  error = Error::Success;
-  return true;
-}
-
-template <typename T, typename U>
-inline bool write_content_chunked(Stream &strm,
-                                  const ContentProvider &content_provider,
-                                  const T &is_shutting_down, U &compressor) {
-  auto error = Error::Success;
-  return write_content_chunked(strm, content_provider, is_shutting_down,
-                               compressor, error);
-}
-
-template <typename T>
-inline bool redirect(T &cli, Request &req, Response &res,
-                     const std::string &path, const std::string &location,
-                     Error &error) {
-  Request new_req = req;
-  new_req.path = path;
-  new_req.redirect_count_ -= 1;
-
-  if (res.status == 303 && (req.method != "GET" && req.method != "HEAD")) {
-    new_req.method = "GET";
-    new_req.body.clear();
-    new_req.headers.clear();
-  }
-
-  Response new_res;
-
-  auto ret = cli.send(new_req, new_res, error);
-  if (ret) {
-    req = new_req;
-    res = new_res;
-    res.location = location;
-  }
-  return ret;
-}
-
-inline std::string params_to_query_str(const Params &params) {
-  std::string query;
-
-  for (auto it = params.begin(); it != params.end(); ++it) {
-    if (it != params.begin()) { query += "&"; }
-    query += it->first;
-    query += "=";
-    query += encode_query_param(it->second);
-  }
-  return query;
-}
-
-inline std::string append_query_params(const char *path, const Params &params) {
-  std::string path_with_query = path;
-  const static std::regex re("[^?]+\\?.*");
-  auto delm = std::regex_match(path, re) ? '&' : '?';
-  path_with_query += delm + params_to_query_str(params);
-  return path_with_query;
-}
-
-inline void parse_query_text(const std::string &s, Params &params) {
-  std::set<std::string> cache;
-  split(s.data(), s.data() + s.size(), '&', [&](const char *b, const char *e) {
-    std::string kv(b, e);
-    if (cache.find(kv) != cache.end()) { return; }
-    cache.insert(kv);
-
-    std::string key;
-    std::string val;
-    split(b, e, '=', [&](const char *b2, const char *e2) {
-      if (key.empty()) {
-        key.assign(b2, e2);
-      } else {
-        val.assign(b2, e2);
-      }
-    });
-
-    if (!key.empty()) {
-      params.emplace(decode_url(key, true), decode_url(val, true));
-    }
-  });
-}
-
-inline bool parse_multipart_boundary(const std::string &content_type,
-                                     std::string &boundary) {
-  auto pos = content_type.find("boundary=");
-  if (pos == std::string::npos) { return false; }
-  boundary = content_type.substr(pos + 9);
-  if (boundary.length() >= 2 && boundary.front() == '"' &&
-      boundary.back() == '"') {
-    boundary = boundary.substr(1, boundary.size() - 2);
-  }
-  return !boundary.empty();
-}
-
-inline bool parse_range_header(const std::string &s, Ranges &ranges) try {
-  static auto re_first_range = std::regex(R"(bytes=(\d*-\d*(?:,\s*\d*-\d*)*))");
-  std::smatch m;
-  if (std::regex_match(s, m, re_first_range)) {
-    auto pos = static_cast<size_t>(m.position(1));
-    auto len = static_cast<size_t>(m.length(1));
-    bool all_valid_ranges = true;
-    split(&s[pos], &s[pos + len], ',', [&](const char *b, const char *e) {
-      if (!all_valid_ranges) return;
-      static auto re_another_range = std::regex(R"(\s*(\d*)-(\d*))");
-      std::cmatch cm;
-      if (std::regex_match(b, e, cm, re_another_range)) {
-        ssize_t first = -1;
-        if (!cm.str(1).empty()) {
-          first = static_cast<ssize_t>(std::stoll(cm.str(1)));
-        }
-
-        ssize_t last = -1;
-        if (!cm.str(2).empty()) {
-          last = static_cast<ssize_t>(std::stoll(cm.str(2)));
-        }
-
-        if (first != -1 && last != -1 && first > last) {
-          all_valid_ranges = false;
-          return;
-        }
-        ranges.emplace_back(std::make_pair(first, last));
-      }
-    });
-    return all_valid_ranges;
-  }
-  return false;
-} catch (...) { return false; }
-
-class MultipartFormDataParser {
-public:
-  MultipartFormDataParser() = default;
-
-  void set_boundary(std::string &&boundary) { boundary_ = boundary; }
-
-  bool is_valid() const { return is_valid_; }
-
-  bool parse(const char *buf, size_t n, const ContentReceiver &content_callback,
-             const MultipartContentHeader &header_callback) {
-
-    static const std::regex re_content_disposition(
-        "^Content-Disposition:\\s*form-data;\\s*name=\"(.*?)\"(?:;\\s*filename="
-        "\"(.*?)\")?\\s*$",
-        std::regex_constants::icase);
-    static const std::string dash_ = "--";
-    static const std::string crlf_ = "\r\n";
-
-    buf_.append(buf, n); // TODO: performance improvement
-
-    while (!buf_.empty()) {
-      switch (state_) {
-      case 0: { // Initial boundary
-        auto pattern = dash_ + boundary_ + crlf_;
-        if (pattern.size() > buf_.size()) { return true; }
-        auto pos = buf_.find(pattern);
-        if (pos != 0) { return false; }
-        buf_.erase(0, pattern.size());
-        off_ += pattern.size();
-        state_ = 1;
-        break;
-      }
-      case 1: { // New entry
-        clear_file_info();
-        state_ = 2;
-        break;
-      }
-      case 2: { // Headers
-        auto pos = buf_.find(crlf_);
-        while (pos != std::string::npos) {
-          // Empty line
-          if (pos == 0) {
-            if (!header_callback(file_)) {
-              is_valid_ = false;
-              return false;
-            }
-            buf_.erase(0, crlf_.size());
-            off_ += crlf_.size();
-            state_ = 3;
-            break;
-          }
-
-          static const std::string header_name = "content-type:";
-          const auto header = buf_.substr(0, pos);
-          if (start_with_case_ignore(header, header_name)) {
-            file_.content_type = trim_copy(header.substr(header_name.size()));
-          } else {
-            std::smatch m;
-            if (std::regex_match(header, m, re_content_disposition)) {
-              file_.name = m[1];
-              file_.filename = m[2];
-            }
-          }
-
-          buf_.erase(0, pos + crlf_.size());
-          off_ += pos + crlf_.size();
-          pos = buf_.find(crlf_);
-        }
-        if (state_ != 3) { return true; }
-        break;
-      }
-      case 3: { // Body
-        {
-          auto pattern = crlf_ + dash_;
-          if (pattern.size() > buf_.size()) { return true; }
-
-          auto pos = find_string(buf_, pattern);
-
-          if (!content_callback(buf_.data(), pos)) {
-            is_valid_ = false;
-            return false;
-          }
-
-          off_ += pos;
-          buf_.erase(0, pos);
-        }
-        {
-          auto pattern = crlf_ + dash_ + boundary_;
-          if (pattern.size() > buf_.size()) { return true; }
-
-          auto pos = buf_.find(pattern);
-          if (pos != std::string::npos) {
-            if (!content_callback(buf_.data(), pos)) {
-              is_valid_ = false;
-              return false;
-            }
-
-            off_ += pos + pattern.size();
-            buf_.erase(0, pos + pattern.size());
-            state_ = 4;
-          } else {
-            if (!content_callback(buf_.data(), pattern.size())) {
-              is_valid_ = false;
-              return false;
-            }
-
-            off_ += pattern.size();
-            buf_.erase(0, pattern.size());
-          }
-        }
-        break;
-      }
-      case 4: { // Boundary
-        if (crlf_.size() > buf_.size()) { return true; }
-        if (buf_.compare(0, crlf_.size(), crlf_) == 0) {
-          buf_.erase(0, crlf_.size());
-          off_ += crlf_.size();
-          state_ = 1;
-        } else {
-          auto pattern = dash_ + crlf_;
-          if (pattern.size() > buf_.size()) { return true; }
-          if (buf_.compare(0, pattern.size(), pattern) == 0) {
-            buf_.erase(0, pattern.size());
-            off_ += pattern.size();
-            is_valid_ = true;
-            state_ = 5;
-          } else {
-            return true;
-          }
-        }
-        break;
-      }
-      case 5: { // Done
-        is_valid_ = false;
-        return false;
-      }
-      }
-    }
-
-    return true;
-  }
-
-private:
-  void clear_file_info() {
-    file_.name.clear();
-    file_.filename.clear();
-    file_.content_type.clear();
-  }
-
-  bool start_with_case_ignore(const std::string &a,
-                              const std::string &b) const {
-    if (a.size() < b.size()) { return false; }
-    for (size_t i = 0; i < b.size(); i++) {
-      if (::tolower(a[i]) != ::tolower(b[i])) { return false; }
-    }
-    return true;
-  }
-
-  bool start_with(const std::string &a, size_t off,
-                  const std::string &b) const {
-    if (a.size() - off < b.size()) { return false; }
-    for (size_t i = 0; i < b.size(); i++) {
-      if (a[i + off] != b[i]) { return false; }
-    }
-    return true;
-  }
-
-  size_t find_string(const std::string &s, const std::string &pattern) const {
-    auto c = pattern.front();
-
-    size_t off = 0;
-    while (off < s.size()) {
-      auto pos = s.find(c, off);
-      if (pos == std::string::npos) { return s.size(); }
-
-      auto rem = s.size() - pos;
-      if (pattern.size() > rem) { return pos; }
-
-      if (start_with(s, pos, pattern)) { return pos; }
-
-      off = pos + 1;
-    }
-
-    return s.size();
-  }
-
-  std::string boundary_;
-
-  std::string buf_;
-  size_t state_ = 0;
-  bool is_valid_ = false;
-  size_t off_ = 0;
-  MultipartFormData file_;
-};
-
-inline std::string to_lower(const char *beg, const char *end) {
-  std::string out;
-  auto it = beg;
-  while (it != end) {
-    out += static_cast<char>(::tolower(*it));
-    it++;
-  }
-  return out;
-}
-
-inline std::string make_multipart_data_boundary() {
-  static const char data[] =
-      "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-
-  // std::random_device might actually be deterministic on some
-  // platforms, but due to lack of support in the c++ standard library,
-  // doing better requires either some ugly hacks or breaking portability.
-  std::random_device seed_gen;
-  // Request 128 bits of entropy for initialization
-  std::seed_seq seed_sequence{seed_gen(), seed_gen(), seed_gen(), seed_gen()};
-  std::mt19937 engine(seed_sequence);
-
-  std::string result = "--cpp-httplib-multipart-data-";
-
-  for (auto i = 0; i < 16; i++) {
-    result += data[engine() % (sizeof(data) - 1)];
-  }
-
-  return result;
-}
-
-inline std::pair<size_t, size_t>
-get_range_offset_and_length(const Request &req, size_t content_length,
-                            size_t index) {
-  auto r = req.ranges[index];
-
-  if (r.first == -1 && r.second == -1) {
-    return std::make_pair(0, content_length);
-  }
-
-  auto slen = static_cast<ssize_t>(content_length);
-
-  if (r.first == -1) {
-    r.first = (std::max)(static_cast<ssize_t>(0), slen - r.second);
-    r.second = slen - 1;
-  }
-
-  if (r.second == -1) { r.second = slen - 1; }
-  return std::make_pair(r.first, static_cast<size_t>(r.second - r.first) + 1);
-}
-
-inline std::string make_content_range_header_field(size_t offset, size_t length,
-                                                   size_t content_length) {
-  std::string field = "bytes ";
-  field += std::to_string(offset);
-  field += "-";
-  field += std::to_string(offset + length - 1);
-  field += "/";
-  field += std::to_string(content_length);
-  return field;
-}
-
-template <typename SToken, typename CToken, typename Content>
-bool process_multipart_ranges_data(const Request &req, Response &res,
-                                   const std::string &boundary,
-                                   const std::string &content_type,
-                                   SToken stoken, CToken ctoken,
-                                   Content content) {
-  for (size_t i = 0; i < req.ranges.size(); i++) {
-    ctoken("--");
-    stoken(boundary);
-    ctoken("\r\n");
-    if (!content_type.empty()) {
-      ctoken("Content-Type: ");
-      stoken(content_type);
-      ctoken("\r\n");
-    }
-
-    auto offsets = get_range_offset_and_length(req, res.body.size(), i);
-    auto offset = offsets.first;
-    auto length = offsets.second;
-
-    ctoken("Content-Range: ");
-    stoken(make_content_range_header_field(offset, length, res.body.size()));
-    ctoken("\r\n");
-    ctoken("\r\n");
-    if (!content(offset, length)) { return false; }
-    ctoken("\r\n");
-  }
-
-  ctoken("--");
-  stoken(boundary);
-  ctoken("--\r\n");
-
-  return true;
-}
-
-inline bool make_multipart_ranges_data(const Request &req, Response &res,
-                                       const std::string &boundary,
-                                       const std::string &content_type,
-                                       std::string &data) {
-  return process_multipart_ranges_data(
-      req, res, boundary, content_type,
-      [&](const std::string &token) { data += token; },
-      [&](const char *token) { data += token; },
-      [&](size_t offset, size_t length) {
-        if (offset < res.body.size()) {
-          data += res.body.substr(offset, length);
-          return true;
-        }
-        return false;
-      });
-}
-
-inline size_t
-get_multipart_ranges_data_length(const Request &req, Response &res,
-                                 const std::string &boundary,
-                                 const std::string &content_type) {
-  size_t data_length = 0;
-
-  process_multipart_ranges_data(
-      req, res, boundary, content_type,
-      [&](const std::string &token) { data_length += token.size(); },
-      [&](const char *token) { data_length += strlen(token); },
-      [&](size_t /*offset*/, size_t length) {
-        data_length += length;
-        return true;
-      });
-
-  return data_length;
-}
-
-template <typename T>
-inline bool write_multipart_ranges_data(Stream &strm, const Request &req,
-                                        Response &res,
-                                        const std::string &boundary,
-                                        const std::string &content_type,
-                                        const T &is_shutting_down) {
-  return process_multipart_ranges_data(
-      req, res, boundary, content_type,
-      [&](const std::string &token) { strm.write(token); },
-      [&](const char *token) { strm.write(token); },
-      [&](size_t offset, size_t length) {
-        return write_content(strm, res.content_provider_, offset, length,
-                             is_shutting_down);
-      });
-}
-
-inline std::pair<size_t, size_t>
-get_range_offset_and_length(const Request &req, const Response &res,
-                            size_t index) {
-  auto r = req.ranges[index];
-
-  if (r.second == -1) {
-    r.second = static_cast<ssize_t>(res.content_length_) - 1;
-  }
-
-  return std::make_pair(r.first, r.second - r.first + 1);
-}
-
-inline bool expect_content(const Request &req) {
-  if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH" ||
-      req.method == "PRI" || req.method == "DELETE") {
-    return true;
-  }
-  // TODO: check if Content-Length is set
-  return false;
-}
-
-inline bool has_crlf(const char *s) {
-  auto p = s;
-  while (*p) {
-    if (*p == '\r' || *p == '\n') { return true; }
-    p++;
-  }
-  return false;
-}
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-template <typename CTX, typename Init, typename Update, typename Final>
-inline std::string message_digest(const std::string &s, Init init,
-                                  Update update, Final final,
-                                  size_t digest_length) {
-  using namespace std;
-
-  std::vector<unsigned char> md(digest_length, 0);
-  CTX ctx;
-  init(&ctx);
-  update(&ctx, s.data(), s.size());
-  final(md.data(), &ctx);
-
-  stringstream ss;
-  for (auto c : md) {
-    ss << setfill('0') << setw(2) << hex << (unsigned int)c;
-  }
-  return ss.str();
-}
-
-inline std::string MD5(const std::string &s) {
-  return message_digest<MD5_CTX>(s, MD5_Init, MD5_Update, MD5_Final,
-                                 MD5_DIGEST_LENGTH);
-}
-
-inline std::string SHA_256(const std::string &s) {
-  return message_digest<SHA256_CTX>(s, SHA256_Init, SHA256_Update, SHA256_Final,
-                                    SHA256_DIGEST_LENGTH);
-}
-
-inline std::string SHA_512(const std::string &s) {
-  return message_digest<SHA512_CTX>(s, SHA512_Init, SHA512_Update, SHA512_Final,
-                                    SHA512_DIGEST_LENGTH);
-}
-#endif
-
-#ifdef _WIN32
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-// NOTE: This code came up with the following stackoverflow post:
-// https://stackoverflow.com/questions/9507184/can-openssl-on-windows-use-the-system-certificate-store
-inline bool load_system_certs_on_windows(X509_STORE *store) {
-  auto hStore = CertOpenSystemStoreW((HCRYPTPROV_LEGACY)NULL, L"ROOT");
-
-  if (!hStore) { return false; }
-
-  PCCERT_CONTEXT pContext = NULL;
-  while ((pContext = CertEnumCertificatesInStore(hStore, pContext)) !=
-         nullptr) {
-    auto encoded_cert =
-        static_cast<const unsigned char *>(pContext->pbCertEncoded);
-
-    auto x509 = d2i_X509(NULL, &encoded_cert, pContext->cbCertEncoded);
-    if (x509) {
-      X509_STORE_add_cert(store, x509);
-      X509_free(x509);
-    }
-  }
-
-  CertFreeCertificateContext(pContext);
-  CertCloseStore(hStore, 0);
-
-  return true;
-}
-#endif
-
-class WSInit {
-public:
-  WSInit() {
-    WSADATA wsaData;
-    WSAStartup(0x0002, &wsaData);
-  }
-
-  ~WSInit() { WSACleanup(); }
-};
-
-static WSInit wsinit_;
-#endif
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-inline std::pair<std::string, std::string> make_digest_authentication_header(
-    const Request &req, const std::map<std::string, std::string> &auth,
-    size_t cnonce_count, const std::string &cnonce, const std::string &username,
-    const std::string &password, bool is_proxy = false) {
-  using namespace std;
-
-  string nc;
-  {
-    stringstream ss;
-    ss << setfill('0') << setw(8) << hex << cnonce_count;
-    nc = ss.str();
-  }
-
-  auto qop = auth.at("qop");
-  if (qop.find("auth-int") != std::string::npos) {
-    qop = "auth-int";
-  } else {
-    qop = "auth";
-  }
-
-  std::string algo = "MD5";
-  if (auth.find("algorithm") != auth.end()) { algo = auth.at("algorithm"); }
-
-  string response;
-  {
-    auto H = algo == "SHA-256"
-                 ? detail::SHA_256
-                 : algo == "SHA-512" ? detail::SHA_512 : detail::MD5;
-
-    auto A1 = username + ":" + auth.at("realm") + ":" + password;
-
-    auto A2 = req.method + ":" + req.path;
-    if (qop == "auth-int") { A2 += ":" + H(req.body); }
-
-    response = H(H(A1) + ":" + auth.at("nonce") + ":" + nc + ":" + cnonce +
-                 ":" + qop + ":" + H(A2));
-  }
-
-  auto field = "Digest username=\"" + username + "\", realm=\"" +
-               auth.at("realm") + "\", nonce=\"" + auth.at("nonce") +
-               "\", uri=\"" + req.path + "\", algorithm=" + algo +
-               ", qop=" + qop + ", nc=\"" + nc + "\", cnonce=\"" + cnonce +
-               "\", response=\"" + response + "\"";
-
-  auto key = is_proxy ? "Proxy-Authorization" : "Authorization";
-  return std::make_pair(key, field);
-}
-#endif
-
-inline bool parse_www_authenticate(const Response &res,
-                                   std::map<std::string, std::string> &auth,
-                                   bool is_proxy) {
-  auto auth_key = is_proxy ? "Proxy-Authenticate" : "WWW-Authenticate";
-  if (res.has_header(auth_key)) {
-    static auto re = std::regex(R"~((?:(?:,\s*)?(.+?)=(?:"(.*?)"|([^,]*))))~");
-    auto s = res.get_header_value(auth_key);
-    auto pos = s.find(' ');
-    if (pos != std::string::npos) {
-      auto type = s.substr(0, pos);
-      if (type == "Basic") {
-        return false;
-      } else if (type == "Digest") {
-        s = s.substr(pos + 1);
-        auto beg = std::sregex_iterator(s.begin(), s.end(), re);
-        for (auto i = beg; i != std::sregex_iterator(); ++i) {
-          auto m = *i;
-          auto key = s.substr(static_cast<size_t>(m.position(1)),
-                              static_cast<size_t>(m.length(1)));
-          auto val = m.length(2) > 0
-                         ? s.substr(static_cast<size_t>(m.position(2)),
-                                    static_cast<size_t>(m.length(2)))
-                         : s.substr(static_cast<size_t>(m.position(3)),
-                                    static_cast<size_t>(m.length(3)));
-          auth[key] = val;
-        }
-        return true;
-      }
-    }
-  }
-  return false;
-}
-
-// https://stackoverflow.com/questions/440133/how-do-i-create-a-random-alpha-numeric-string-in-c/440240#answer-440240
-inline std::string random_string(size_t length) {
-  auto randchar = []() -> char {
-    const char charset[] = "0123456789"
-                           "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-                           "abcdefghijklmnopqrstuvwxyz";
-    const size_t max_index = (sizeof(charset) - 1);
-    return charset[static_cast<size_t>(std::rand()) % max_index];
-  };
-  std::string str(length, 0);
-  std::generate_n(str.begin(), length, randchar);
-  return str;
-}
-
-class ContentProviderAdapter {
-public:
-  explicit ContentProviderAdapter(
-      ContentProviderWithoutLength &&content_provider)
-      : content_provider_(content_provider) {}
-
-  bool operator()(size_t offset, size_t, DataSink &sink) {
-    return content_provider_(offset, sink);
-  }
-
-private:
-  ContentProviderWithoutLength content_provider_;
-};
-
-} // namespace detail
-
-// Header utilities
-inline std::pair<std::string, std::string> make_range_header(Ranges ranges) {
-  std::string field = "bytes=";
-  auto i = 0;
-  for (auto r : ranges) {
-    if (i != 0) { field += ", "; }
-    if (r.first != -1) { field += std::to_string(r.first); }
-    field += '-';
-    if (r.second != -1) { field += std::to_string(r.second); }
-    i++;
-  }
-  return std::make_pair("Range", std::move(field));
-}
-
-inline std::pair<std::string, std::string>
-make_basic_authentication_header(const std::string &username,
-                                 const std::string &password, bool is_proxy) {
-  auto field = "Basic " + detail::base64_encode(username + ":" + password);
-  auto key = is_proxy ? "Proxy-Authorization" : "Authorization";
-  return std::make_pair(key, std::move(field));
-}
-
-inline std::pair<std::string, std::string>
-make_bearer_token_authentication_header(const std::string &token,
-                                        bool is_proxy = false) {
-  auto field = "Bearer " + token;
-  auto key = is_proxy ? "Proxy-Authorization" : "Authorization";
-  return std::make_pair(key, std::move(field));
-}
-
-// Request implementation
-inline bool Request::has_header(const char *key) const {
-  return detail::has_header(headers, key);
-}
-
-inline std::string Request::get_header_value(const char *key, size_t id) const {
-  return detail::get_header_value(headers, key, id, "");
-}
-
-inline size_t Request::get_header_value_count(const char *key) const {
-  auto r = headers.equal_range(key);
-  return static_cast<size_t>(std::distance(r.first, r.second));
-}
-
-inline void Request::set_header(const char *key, const char *val) {
-  if (!detail::has_crlf(key) && !detail::has_crlf(val)) {
-    headers.emplace(key, val);
-  }
-}
-
-inline void Request::set_header(const char *key, const std::string &val) {
-  if (!detail::has_crlf(key) && !detail::has_crlf(val.c_str())) {
-    headers.emplace(key, val);
-  }
-}
-
-inline bool Request::has_param(const char *key) const {
-  return params.find(key) != params.end();
-}
-
-inline std::string Request::get_param_value(const char *key, size_t id) const {
-  auto rng = params.equal_range(key);
-  auto it = rng.first;
-  std::advance(it, static_cast<ssize_t>(id));
-  if (it != rng.second) { return it->second; }
-  return std::string();
-}
-
-inline size_t Request::get_param_value_count(const char *key) const {
-  auto r = params.equal_range(key);
-  return static_cast<size_t>(std::distance(r.first, r.second));
-}
-
-inline bool Request::is_multipart_form_data() const {
-  const auto &content_type = get_header_value("Content-Type");
-  return !content_type.find("multipart/form-data");
-}
-
-inline bool Request::has_file(const char *key) const {
-  return files.find(key) != files.end();
-}
-
-inline MultipartFormData Request::get_file_value(const char *key) const {
-  auto it = files.find(key);
-  if (it != files.end()) { return it->second; }
-  return MultipartFormData();
-}
-
-// Response implementation
-inline bool Response::has_header(const char *key) const {
-  return headers.find(key) != headers.end();
-}
-
-inline std::string Response::get_header_value(const char *key,
-                                              size_t id) const {
-  return detail::get_header_value(headers, key, id, "");
-}
-
-inline size_t Response::get_header_value_count(const char *key) const {
-  auto r = headers.equal_range(key);
-  return static_cast<size_t>(std::distance(r.first, r.second));
-}
-
-inline void Response::set_header(const char *key, const char *val) {
-  if (!detail::has_crlf(key) && !detail::has_crlf(val)) {
-    headers.emplace(key, val);
-  }
-}
-
-inline void Response::set_header(const char *key, const std::string &val) {
-  if (!detail::has_crlf(key) && !detail::has_crlf(val.c_str())) {
-    headers.emplace(key, val);
-  }
-}
-
-inline void Response::set_redirect(const char *url, int stat) {
-  if (!detail::has_crlf(url)) {
-    set_header("Location", url);
-    if (300 <= stat && stat < 400) {
-      this->status = stat;
-    } else {
-      this->status = 302;
-    }
-  }
-}
-
-inline void Response::set_redirect(const std::string &url, int stat) {
-  set_redirect(url.c_str(), stat);
-}
-
-inline void Response::set_content(const char *s, size_t n,
-                                  const char *content_type) {
-  body.assign(s, n);
-
-  auto rng = headers.equal_range("Content-Type");
-  headers.erase(rng.first, rng.second);
-  set_header("Content-Type", content_type);
-}
-
-inline void Response::set_content(const std::string &s,
-                                  const char *content_type) {
-  set_content(s.data(), s.size(), content_type);
-}
-
-inline void Response::set_content_provider(
-    size_t in_length, const char *content_type, ContentProvider provider,
-    ContentProviderResourceReleaser resource_releaser) {
-  assert(in_length > 0);
-  set_header("Content-Type", content_type);
-  content_length_ = in_length;
-  content_provider_ = std::move(provider);
-  content_provider_resource_releaser_ = resource_releaser;
-  is_chunked_content_provider_ = false;
-}
-
-inline void Response::set_content_provider(
-    const char *content_type, ContentProviderWithoutLength provider,
-    ContentProviderResourceReleaser resource_releaser) {
-  set_header("Content-Type", content_type);
-  content_length_ = 0;
-  content_provider_ = detail::ContentProviderAdapter(std::move(provider));
-  content_provider_resource_releaser_ = resource_releaser;
-  is_chunked_content_provider_ = false;
-}
-
-inline void Response::set_chunked_content_provider(
-    const char *content_type, ContentProviderWithoutLength provider,
-    ContentProviderResourceReleaser resource_releaser) {
-  set_header("Content-Type", content_type);
-  content_length_ = 0;
-  content_provider_ = detail::ContentProviderAdapter(std::move(provider));
-  content_provider_resource_releaser_ = resource_releaser;
-  is_chunked_content_provider_ = true;
-}
-
-// Result implementation
-inline bool Result::has_request_header(const char *key) const {
-  return request_headers_.find(key) != request_headers_.end();
-}
-
-inline std::string Result::get_request_header_value(const char *key,
-                                                    size_t id) const {
-  return detail::get_header_value(request_headers_, key, id, "");
-}
-
-inline size_t Result::get_request_header_value_count(const char *key) const {
-  auto r = request_headers_.equal_range(key);
-  return static_cast<size_t>(std::distance(r.first, r.second));
-}
-
-// Stream implementation
-inline ssize_t Stream::write(const char *ptr) {
-  return write(ptr, strlen(ptr));
-}
-
-inline ssize_t Stream::write(const std::string &s) {
-  return write(s.data(), s.size());
-}
-
-namespace detail {
-
-// Socket stream implementation
-inline SocketStream::SocketStream(socket_t sock, time_t read_timeout_sec,
-                                  time_t read_timeout_usec,
-                                  time_t write_timeout_sec,
-                                  time_t write_timeout_usec)
-    : sock_(sock), read_timeout_sec_(read_timeout_sec),
-      read_timeout_usec_(read_timeout_usec),
-      write_timeout_sec_(write_timeout_sec),
-      write_timeout_usec_(write_timeout_usec) {}
-
-inline SocketStream::~SocketStream() {}
-
-inline bool SocketStream::is_readable() const {
-  return select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0;
-}
-
-inline bool SocketStream::is_writable() const {
-  return select_write(sock_, write_timeout_sec_, write_timeout_usec_) > 0;
-}
-
-inline ssize_t SocketStream::read(char *ptr, size_t size) {
-  if (!is_readable()) { return -1; }
-
-#ifdef _WIN32
-  if (size > static_cast<size_t>((std::numeric_limits<int>::max)())) {
-    return -1;
-  }
-  return recv(sock_, ptr, static_cast<int>(size), CPPHTTPLIB_RECV_FLAGS);
-#else
-  return handle_EINTR(
-      [&]() { return recv(sock_, ptr, size, CPPHTTPLIB_RECV_FLAGS); });
-#endif
-}
-
-inline ssize_t SocketStream::write(const char *ptr, size_t size) {
-  if (!is_writable()) { return -1; }
-
-#ifdef _WIN32
-  if (size > static_cast<size_t>((std::numeric_limits<int>::max)())) {
-    return -1;
-  }
-  return send(sock_, ptr, static_cast<int>(size), CPPHTTPLIB_SEND_FLAGS);
-#else
-  return handle_EINTR(
-      [&]() { return send(sock_, ptr, size, CPPHTTPLIB_SEND_FLAGS); });
-#endif
-}
-
-inline void SocketStream::get_remote_ip_and_port(std::string &ip,
-                                                 int &port) const {
-  return detail::get_remote_ip_and_port(sock_, ip, port);
-}
-
-inline socket_t SocketStream::socket() const { return sock_; }
-
-// Buffer stream implementation
-inline bool BufferStream::is_readable() const { return true; }
-
-inline bool BufferStream::is_writable() const { return true; }
-
-inline ssize_t BufferStream::read(char *ptr, size_t size) {
-#if defined(_MSC_VER) && _MSC_VER <= 1900
-  auto len_read = buffer._Copy_s(ptr, size, size, position);
-#else
-  auto len_read = buffer.copy(ptr, size, position);
-#endif
-  position += static_cast<size_t>(len_read);
-  return static_cast<ssize_t>(len_read);
-}
-
-inline ssize_t BufferStream::write(const char *ptr, size_t size) {
-  buffer.append(ptr, size);
-  return static_cast<ssize_t>(size);
-}
-
-inline void BufferStream::get_remote_ip_and_port(std::string & /*ip*/,
-                                                 int & /*port*/) const {}
-
-inline socket_t BufferStream::socket() const { return 0; }
-
-inline const std::string &BufferStream::get_buffer() const { return buffer; }
-
-} // namespace detail
-
-// HTTP server implementation
-inline Server::Server()
-    : new_task_queue(
-          [] { return new ThreadPool(CPPHTTPLIB_THREAD_POOL_COUNT); }),
-      svr_sock_(INVALID_SOCKET), is_running_(false) {
-#ifndef _WIN32
-  signal(SIGPIPE, SIG_IGN);
-#endif
-}
-
-inline Server::~Server() {}
-
-inline Server &Server::Get(const std::string &pattern, Handler handler) {
-  get_handlers_.push_back(
-      std::make_pair(std::regex(pattern), std::move(handler)));
-  return *this;
-}
-
-inline Server &Server::Post(const std::string &pattern, Handler handler) {
-  post_handlers_.push_back(
-      std::make_pair(std::regex(pattern), std::move(handler)));
-  return *this;
-}
-
-inline Server &Server::Post(const std::string &pattern,
-                            HandlerWithContentReader handler) {
-  post_handlers_for_content_reader_.push_back(
-      std::make_pair(std::regex(pattern), std::move(handler)));
-  return *this;
-}
-
-inline Server &Server::Put(const std::string &pattern, Handler handler) {
-  put_handlers_.push_back(
-      std::make_pair(std::regex(pattern), std::move(handler)));
-  return *this;
-}
-
-inline Server &Server::Put(const std::string &pattern,
-                           HandlerWithContentReader handler) {
-  put_handlers_for_content_reader_.push_back(
-      std::make_pair(std::regex(pattern), std::move(handler)));
-  return *this;
-}
-
-inline Server &Server::Patch(const std::string &pattern, Handler handler) {
-  patch_handlers_.push_back(
-      std::make_pair(std::regex(pattern), std::move(handler)));
-  return *this;
-}
-
-inline Server &Server::Patch(const std::string &pattern,
-                             HandlerWithContentReader handler) {
-  patch_handlers_for_content_reader_.push_back(
-      std::make_pair(std::regex(pattern), std::move(handler)));
-  return *this;
-}
-
-inline Server &Server::Delete(const std::string &pattern, Handler handler) {
-  delete_handlers_.push_back(
-      std::make_pair(std::regex(pattern), std::move(handler)));
-  return *this;
-}
-
-inline Server &Server::Delete(const std::string &pattern,
-                              HandlerWithContentReader handler) {
-  delete_handlers_for_content_reader_.push_back(
-      std::make_pair(std::regex(pattern), std::move(handler)));
-  return *this;
-}
-
-inline Server &Server::Options(const std::string &pattern, Handler handler) {
-  options_handlers_.push_back(
-      std::make_pair(std::regex(pattern), std::move(handler)));
-  return *this;
-}
-
-inline bool Server::set_base_dir(const std::string &dir,
-                                 const std::string &mount_point) {
-  return set_mount_point(mount_point, dir);
-}
-
-inline bool Server::set_mount_point(const std::string &mount_point,
-                                    const std::string &dir, Headers headers) {
-  if (detail::is_dir(dir)) {
-    std::string mnt = !mount_point.empty() ? mount_point : "/";
-    if (!mnt.empty() && mnt[0] == '/') {
-      base_dirs_.push_back({mnt, dir, std::move(headers)});
-      return true;
-    }
-  }
-  return false;
-}
-
-inline bool Server::remove_mount_point(const std::string &mount_point) {
-  for (auto it = base_dirs_.begin(); it != base_dirs_.end(); ++it) {
-    if (it->mount_point == mount_point) {
-      base_dirs_.erase(it);
-      return true;
-    }
-  }
-  return false;
-}
-
-inline Server &
-Server::set_file_extension_and_mimetype_mapping(const char *ext,
-                                                const char *mime) {
-  file_extension_and_mimetype_map_[ext] = mime;
-  return *this;
-}
-
-inline Server &Server::set_file_request_handler(Handler handler) {
-  file_request_handler_ = std::move(handler);
-  return *this;
-}
-
-inline Server &Server::set_error_handler(HandlerWithResponse handler) {
-  error_handler_ = std::move(handler);
-  return *this;
-}
-
-inline Server &Server::set_error_handler(Handler handler) {
-  error_handler_ = [handler](const Request &req, Response &res) {
-    handler(req, res);
-    return HandlerResponse::Handled;
-  };
-  return *this;
-}
-
-inline Server &Server::set_exception_handler(ExceptionHandler handler) {
-  exception_handler_ = std::move(handler);
-  return *this;
-}
-
-inline Server &Server::set_pre_routing_handler(HandlerWithResponse handler) {
-  pre_routing_handler_ = std::move(handler);
-  return *this;
-}
-
-inline Server &Server::set_post_routing_handler(Handler handler) {
-  post_routing_handler_ = std::move(handler);
-  return *this;
-}
-
-inline Server &Server::set_logger(Logger logger) {
-  logger_ = std::move(logger);
-  return *this;
-}
-
-inline Server &
-Server::set_expect_100_continue_handler(Expect100ContinueHandler handler) {
-  expect_100_continue_handler_ = std::move(handler);
-
-  return *this;
-}
-
-inline Server &Server::set_address_family(int family) {
-  address_family_ = family;
-  return *this;
-}
-
-inline Server &Server::set_tcp_nodelay(bool on) {
-  tcp_nodelay_ = on;
-  return *this;
-}
-
-inline Server &Server::set_socket_options(SocketOptions socket_options) {
-  socket_options_ = std::move(socket_options);
-  return *this;
-}
-
-inline Server &Server::set_default_headers(Headers headers) {
-  default_headers_ = std::move(headers);
-  return *this;
-}
-
-inline Server &Server::set_keep_alive_max_count(size_t count) {
-  keep_alive_max_count_ = count;
-  return *this;
-}
-
-inline Server &Server::set_keep_alive_timeout(time_t sec) {
-  keep_alive_timeout_sec_ = sec;
-  return *this;
-}
-
-inline Server &Server::set_read_timeout(time_t sec, time_t usec) {
-  read_timeout_sec_ = sec;
-  read_timeout_usec_ = usec;
-  return *this;
-}
-
-inline Server &Server::set_write_timeout(time_t sec, time_t usec) {
-  write_timeout_sec_ = sec;
-  write_timeout_usec_ = usec;
-  return *this;
-}
-
-inline Server &Server::set_idle_interval(time_t sec, time_t usec) {
-  idle_interval_sec_ = sec;
-  idle_interval_usec_ = usec;
-  return *this;
-}
-
-inline Server &Server::set_payload_max_length(size_t length) {
-  payload_max_length_ = length;
-  return *this;
-}
-
-inline bool Server::bind_to_port(const char *host, int port, int socket_flags) {
-  if (bind_internal(host, port, socket_flags) < 0) return false;
-  return true;
-}
-inline int Server::bind_to_any_port(const char *host, int socket_flags) {
-  return bind_internal(host, 0, socket_flags);
-}
-
-inline bool Server::listen_after_bind() { return listen_internal(); }
-
-inline bool Server::listen(const char *host, int port, int socket_flags) {
-  return bind_to_port(host, port, socket_flags) && listen_internal();
-}
-
-inline bool Server::is_running() const { return is_running_; }
-
-inline void Server::stop() {
-  if (is_running_) {
-    assert(svr_sock_ != INVALID_SOCKET);
-    std::atomic<socket_t> sock(svr_sock_.exchange(INVALID_SOCKET));
-    detail::shutdown_socket(sock);
-    detail::close_socket(sock);
-  }
-}
-
-inline bool Server::parse_request_line(const char *s, Request &req) {
-  auto len = strlen(s);
-  if (len < 2 || s[len - 2] != '\r' || s[len - 1] != '\n') { return false; }
-  len -= 2;
-
-  {
-    size_t count = 0;
-
-    detail::split(s, s + len, ' ', [&](const char *b, const char *e) {
-      switch (count) {
-      case 0: req.method = std::string(b, e); break;
-      case 1: req.target = std::string(b, e); break;
-      case 2: req.version = std::string(b, e); break;
-      default: break;
-      }
-      count++;
-    });
-
-    if (count != 3) { return false; }
-  }
-
-  static const std::set<std::string> methods{
-      "GET",     "HEAD",    "POST",  "PUT",   "DELETE",
-      "CONNECT", "OPTIONS", "TRACE", "PATCH", "PRI"};
-
-  if (methods.find(req.method) == methods.end()) { return false; }
-
-  if (req.version != "HTTP/1.1" && req.version != "HTTP/1.0") { return false; }
-
-  {
-    size_t count = 0;
-
-    detail::split(req.target.data(), req.target.data() + req.target.size(), '?',
-                  [&](const char *b, const char *e) {
-                    switch (count) {
-                    case 0:
-                      req.path = detail::decode_url(std::string(b, e), false);
-                      break;
-                    case 1: {
-                      if (e - b > 0) {
-                        detail::parse_query_text(std::string(b, e), req.params);
-                      }
-                      break;
-                    }
-                    default: break;
-                    }
-                    count++;
-                  });
-
-    if (count > 2) { return false; }
-  }
-
-  return true;
-}
-
-inline bool Server::write_response(Stream &strm, bool close_connection,
-                                   const Request &req, Response &res) {
-  return write_response_core(strm, close_connection, req, res, false);
-}
-
-inline bool Server::write_response_with_content(Stream &strm,
-                                                bool close_connection,
-                                                const Request &req,
-                                                Response &res) {
-  return write_response_core(strm, close_connection, req, res, true);
-}
-
-inline bool Server::write_response_core(Stream &strm, bool close_connection,
-                                        const Request &req, Response &res,
-                                        bool need_apply_ranges) {
-  assert(res.status != -1);
-
-  if (400 <= res.status && error_handler_ &&
-      error_handler_(req, res) == HandlerResponse::Handled) {
-    need_apply_ranges = true;
-  }
-
-  std::string content_type;
-  std::string boundary;
-  if (need_apply_ranges) { apply_ranges(req, res, content_type, boundary); }
-
-  // Prepare additional headers
-  if (close_connection || req.get_header_value("Connection") == "close") {
-    res.set_header("Connection", "close");
-  } else {
-    std::stringstream ss;
-    ss << "timeout=" << keep_alive_timeout_sec_
-       << ", max=" << keep_alive_max_count_;
-    res.set_header("Keep-Alive", ss.str());
-  }
-
-  if (!res.has_header("Content-Type") &&
-      (!res.body.empty() || res.content_length_ > 0 || res.content_provider_)) {
-    res.set_header("Content-Type", "text/plain");
-  }
-
-  if (!res.has_header("Content-Length") && res.body.empty() &&
-      !res.content_length_ && !res.content_provider_) {
-    res.set_header("Content-Length", "0");
-  }
-
-  if (!res.has_header("Accept-Ranges") && req.method == "HEAD") {
-    res.set_header("Accept-Ranges", "bytes");
-  }
-
-  if (post_routing_handler_) { post_routing_handler_(req, res); }
-
-  // Response line and headers
-  {
-    detail::BufferStream bstrm;
-
-    if (!bstrm.write_format("HTTP/1.1 %d %s\r\n", res.status,
-                            detail::status_message(res.status))) {
-      return false;
-    }
-
-    if (!detail::write_headers(bstrm, res.headers)) { return false; }
-
-    // Flush buffer
-    auto &data = bstrm.get_buffer();
-    strm.write(data.data(), data.size());
-  }
-
-  // Body
-  auto ret = true;
-  if (req.method != "HEAD") {
-    if (!res.body.empty()) {
-      if (!strm.write(res.body)) { ret = false; }
-    } else if (res.content_provider_) {
-      if (write_content_with_provider(strm, req, res, boundary, content_type)) {
-        res.content_provider_success_ = true;
-      } else {
-        res.content_provider_success_ = false;
-        ret = false;
-      }
-    }
-  }
-
-  // Log
-  if (logger_) { logger_(req, res); }
-
-  return ret;
-}
-
-inline bool
-Server::write_content_with_provider(Stream &strm, const Request &req,
-                                    Response &res, const std::string &boundary,
-                                    const std::string &content_type) {
-  auto is_shutting_down = [this]() {
-    return this->svr_sock_ == INVALID_SOCKET;
-  };
-
-  if (res.content_length_ > 0) {
-    if (req.ranges.empty()) {
-      return detail::write_content(strm, res.content_provider_, 0,
-                                   res.content_length_, is_shutting_down);
-    } else if (req.ranges.size() == 1) {
-      auto offsets =
-          detail::get_range_offset_and_length(req, res.content_length_, 0);
-      auto offset = offsets.first;
-      auto length = offsets.second;
-      return detail::write_content(strm, res.content_provider_, offset, length,
-                                   is_shutting_down);
-    } else {
-      return detail::write_multipart_ranges_data(
-          strm, req, res, boundary, content_type, is_shutting_down);
-    }
-  } else {
-    if (res.is_chunked_content_provider_) {
-      auto type = detail::encoding_type(req, res);
-
-      std::unique_ptr<detail::compressor> compressor;
-      if (type == detail::EncodingType::Gzip) {
-#ifdef CPPHTTPLIB_ZLIB_SUPPORT
-        compressor = detail::make_unique<detail::gzip_compressor>();
-#endif
-      } else if (type == detail::EncodingType::Brotli) {
-#ifdef CPPHTTPLIB_BROTLI_SUPPORT
-        compressor = detail::make_unique<detail::brotli_compressor>();
-#endif
-      } else {
-        compressor = detail::make_unique<detail::nocompressor>();
-      }
-      assert(compressor != nullptr);
-
-      return detail::write_content_chunked(strm, res.content_provider_,
-                                           is_shutting_down, *compressor);
-    } else {
-      return detail::write_content_without_length(strm, res.content_provider_,
-                                                  is_shutting_down);
-    }
-  }
-}
-
-inline bool Server::read_content(Stream &strm, Request &req, Response &res) {
-  MultipartFormDataMap::iterator cur;
-  if (read_content_core(
-          strm, req, res,
-          // Regular
-          [&](const char *buf, size_t n) {
-            if (req.body.size() + n > req.body.max_size()) { return false; }
-            req.body.append(buf, n);
-            return true;
-          },
-          // Multipart
-          [&](const MultipartFormData &file) {
-            cur = req.files.emplace(file.name, file);
-            return true;
-          },
-          [&](const char *buf, size_t n) {
-            auto &content = cur->second.content;
-            if (content.size() + n > content.max_size()) { return false; }
-            content.append(buf, n);
-            return true;
-          })) {
-    const auto &content_type = req.get_header_value("Content-Type");
-    if (!content_type.find("application/x-www-form-urlencoded")) {
-      detail::parse_query_text(req.body, req.params);
-    }
-    return true;
-  }
-  return false;
-}
-
-inline bool Server::read_content_with_content_receiver(
-    Stream &strm, Request &req, Response &res, ContentReceiver receiver,
-    MultipartContentHeader multipart_header,
-    ContentReceiver multipart_receiver) {
-  return read_content_core(strm, req, res, std::move(receiver),
-                           std::move(multipart_header),
-                           std::move(multipart_receiver));
-}
-
-inline bool Server::read_content_core(Stream &strm, Request &req, Response &res,
-                                      ContentReceiver receiver,
-                                      MultipartContentHeader mulitpart_header,
-                                      ContentReceiver multipart_receiver) {
-  detail::MultipartFormDataParser multipart_form_data_parser;
-  ContentReceiverWithProgress out;
-
-  if (req.is_multipart_form_data()) {
-    const auto &content_type = req.get_header_value("Content-Type");
-    std::string boundary;
-    if (!detail::parse_multipart_boundary(content_type, boundary)) {
-      res.status = 400;
-      return false;
-    }
-
-    multipart_form_data_parser.set_boundary(std::move(boundary));
-    out = [&](const char *buf, size_t n, uint64_t /*off*/, uint64_t /*len*/) {
-      /* For debug
-      size_t pos = 0;
-      while (pos < n) {
-        auto read_size = std::min<size_t>(1, n - pos);
-        auto ret = multipart_form_data_parser.parse(
-            buf + pos, read_size, multipart_receiver, mulitpart_header);
-        if (!ret) { return false; }
-        pos += read_size;
-      }
-      return true;
-      */
-      return multipart_form_data_parser.parse(buf, n, multipart_receiver,
-                                              mulitpart_header);
-    };
-  } else {
-    out = [receiver](const char *buf, size_t n, uint64_t /*off*/,
-                     uint64_t /*len*/) { return receiver(buf, n); };
-  }
-
-  if (req.method == "DELETE" && !req.has_header("Content-Length")) {
-    return true;
-  }
-
-  if (!detail::read_content(strm, req, payload_max_length_, res.status, nullptr,
-                            out, true)) {
-    return false;
-  }
-
-  if (req.is_multipart_form_data()) {
-    if (!multipart_form_data_parser.is_valid()) {
-      res.status = 400;
-      return false;
-    }
-  }
-
-  return true;
-}
-
-inline bool Server::handle_file_request(const Request &req, Response &res,
-                                        bool head) {
-  for (const auto &entry : base_dirs_) {
-    // Prefix match
-    if (!req.path.compare(0, entry.mount_point.size(), entry.mount_point)) {
-      std::string sub_path = "/" + req.path.substr(entry.mount_point.size());
-      if (detail::is_valid_path(sub_path)) {
-        auto path = entry.base_dir + sub_path;
-        if (path.back() == '/') { path += "index.html"; }
-
-        if (detail::is_file(path)) {
-          detail::read_file(path, res.body);
-          auto type =
-              detail::find_content_type(path, file_extension_and_mimetype_map_);
-          if (type) { res.set_header("Content-Type", type); }
-          for (const auto &kv : entry.headers) {
-            res.set_header(kv.first.c_str(), kv.second);
-          }
-          res.status = req.has_header("Range") ? 206 : 200;
-          if (!head && file_request_handler_) {
-            file_request_handler_(req, res);
-          }
-          return true;
-        }
-      }
-    }
-  }
-  return false;
-}
-
-inline socket_t
-Server::create_server_socket(const char *host, int port, int socket_flags,
-                             SocketOptions socket_options) const {
-  return detail::create_socket(
-      host, port, address_family_, socket_flags, tcp_nodelay_,
-      std::move(socket_options),
-      [](socket_t sock, struct addrinfo &ai) -> bool {
-        if (::bind(sock, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen))) {
-          return false;
-        }
-        if (::listen(sock, 5)) { // Listen through 5 channels
-          return false;
-        }
-        return true;
-      });
-}
-
-inline int Server::bind_internal(const char *host, int port, int socket_flags) {
-  if (!is_valid()) { return -1; }
-
-  svr_sock_ = create_server_socket(host, port, socket_flags, socket_options_);
-  if (svr_sock_ == INVALID_SOCKET) { return -1; }
-
-  if (port == 0) {
-    struct sockaddr_storage addr;
-    socklen_t addr_len = sizeof(addr);
-    if (getsockname(svr_sock_, reinterpret_cast<struct sockaddr *>(&addr),
-                    &addr_len) == -1) {
-      return -1;
-    }
-    if (addr.ss_family == AF_INET) {
-      return ntohs(reinterpret_cast<struct sockaddr_in *>(&addr)->sin_port);
-    } else if (addr.ss_family == AF_INET6) {
-      return ntohs(reinterpret_cast<struct sockaddr_in6 *>(&addr)->sin6_port);
-    } else {
-      return -1;
-    }
-  } else {
-    return port;
-  }
-}
-
-inline bool Server::listen_internal() {
-  auto ret = true;
-  is_running_ = true;
-
-  {
-    std::unique_ptr<TaskQueue> task_queue(new_task_queue());
-
-    while (svr_sock_ != INVALID_SOCKET) {
-#ifndef _WIN32
-      if (idle_interval_sec_ > 0 || idle_interval_usec_ > 0) {
-#endif
-        auto val = detail::select_read(svr_sock_, idle_interval_sec_,
-                                       idle_interval_usec_);
-        if (val == 0) { // Timeout
-          task_queue->on_idle();
-          continue;
-        }
-#ifndef _WIN32
-      }
-#endif
-      socket_t sock = accept(svr_sock_, nullptr, nullptr);
-
-      if (sock == INVALID_SOCKET) {
-        if (errno == EMFILE) {
-          // The per-process limit of open file descriptors has been reached.
-          // Try to accept new connections after a short sleep.
-          std::this_thread::sleep_for(std::chrono::milliseconds(1));
-          continue;
-        }
-        if (svr_sock_ != INVALID_SOCKET) {
-          detail::close_socket(svr_sock_);
-          ret = false;
-        } else {
-          ; // The server socket was closed by user.
-        }
-        break;
-      }
-
-      {
-        timeval tv;
-        tv.tv_sec = static_cast<long>(read_timeout_sec_);
-        tv.tv_usec = static_cast<decltype(tv.tv_usec)>(read_timeout_usec_);
-        setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv));
-      }
-      {
-        timeval tv;
-        tv.tv_sec = static_cast<long>(write_timeout_sec_);
-        tv.tv_usec = static_cast<decltype(tv.tv_usec)>(write_timeout_usec_);
-        setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv));
-      }
-
-#if __cplusplus > 201703L
-      task_queue->enqueue([=, this]() { process_and_close_socket(sock); });
-#else
-      task_queue->enqueue([=]() { process_and_close_socket(sock); });
-#endif
-    }
-
-    task_queue->shutdown();
-  }
-
-  is_running_ = false;
-  return ret;
-}
-
-inline bool Server::routing(Request &req, Response &res, Stream &strm) {
-  if (pre_routing_handler_ &&
-      pre_routing_handler_(req, res) == HandlerResponse::Handled) {
-    return true;
-  }
-
-  // File handler
-  bool is_head_request = req.method == "HEAD";
-  if ((req.method == "GET" || is_head_request) &&
-      handle_file_request(req, res, is_head_request)) {
-    return true;
-  }
-
-  if (detail::expect_content(req)) {
-    // Content reader handler
-    {
-      ContentReader reader(
-          [&](ContentReceiver receiver) {
-            return read_content_with_content_receiver(
-                strm, req, res, std::move(receiver), nullptr, nullptr);
-          },
-          [&](MultipartContentHeader header, ContentReceiver receiver) {
-            return read_content_with_content_receiver(strm, req, res, nullptr,
-                                                      std::move(header),
-                                                      std::move(receiver));
-          });
-
-      if (req.method == "POST") {
-        if (dispatch_request_for_content_reader(
-                req, res, std::move(reader),
-                post_handlers_for_content_reader_)) {
-          return true;
-        }
-      } else if (req.method == "PUT") {
-        if (dispatch_request_for_content_reader(
-                req, res, std::move(reader),
-                put_handlers_for_content_reader_)) {
-          return true;
-        }
-      } else if (req.method == "PATCH") {
-        if (dispatch_request_for_content_reader(
-                req, res, std::move(reader),
-                patch_handlers_for_content_reader_)) {
-          return true;
-        }
-      } else if (req.method == "DELETE") {
-        if (dispatch_request_for_content_reader(
-                req, res, std::move(reader),
-                delete_handlers_for_content_reader_)) {
-          return true;
-        }
-      }
-    }
-
-    // Read content into `req.body`
-    if (!read_content(strm, req, res)) { return false; }
-  }
-
-  // Regular handler
-  if (req.method == "GET" || req.method == "HEAD") {
-    return dispatch_request(req, res, get_handlers_);
-  } else if (req.method == "POST") {
-    return dispatch_request(req, res, post_handlers_);
-  } else if (req.method == "PUT") {
-    return dispatch_request(req, res, put_handlers_);
-  } else if (req.method == "DELETE") {
-    return dispatch_request(req, res, delete_handlers_);
-  } else if (req.method == "OPTIONS") {
-    return dispatch_request(req, res, options_handlers_);
-  } else if (req.method == "PATCH") {
-    return dispatch_request(req, res, patch_handlers_);
-  }
-
-  res.status = 400;
-  return false;
-}
-
-inline bool Server::dispatch_request(Request &req, Response &res,
-                                     const Handlers &handlers) {
-  for (const auto &x : handlers) {
-    const auto &pattern = x.first;
-    const auto &handler = x.second;
-
-    if (std::regex_match(req.path, req.matches, pattern)) {
-      handler(req, res);
-      return true;
-    }
-  }
-  return false;
-}
-
-inline void Server::apply_ranges(const Request &req, Response &res,
-                                 std::string &content_type,
-                                 std::string &boundary) {
-  if (req.ranges.size() > 1) {
-    boundary = detail::make_multipart_data_boundary();
-
-    auto it = res.headers.find("Content-Type");
-    if (it != res.headers.end()) {
-      content_type = it->second;
-      res.headers.erase(it);
-    }
-
-    res.headers.emplace("Content-Type",
-                        "multipart/byteranges; boundary=" + boundary);
-  }
-
-  auto type = detail::encoding_type(req, res);
-
-  if (res.body.empty()) {
-    if (res.content_length_ > 0) {
-      size_t length = 0;
-      if (req.ranges.empty()) {
-        length = res.content_length_;
-      } else if (req.ranges.size() == 1) {
-        auto offsets =
-            detail::get_range_offset_and_length(req, res.content_length_, 0);
-        auto offset = offsets.first;
-        length = offsets.second;
-        auto content_range = detail::make_content_range_header_field(
-            offset, length, res.content_length_);
-        res.set_header("Content-Range", content_range);
-      } else {
-        length = detail::get_multipart_ranges_data_length(req, res, boundary,
-                                                          content_type);
-      }
-      res.set_header("Content-Length", std::to_string(length));
-    } else {
-      if (res.content_provider_) {
-        if (res.is_chunked_content_provider_) {
-          res.set_header("Transfer-Encoding", "chunked");
-          if (type == detail::EncodingType::Gzip) {
-            res.set_header("Content-Encoding", "gzip");
-          } else if (type == detail::EncodingType::Brotli) {
-            res.set_header("Content-Encoding", "br");
-          }
-        }
-      }
-    }
-  } else {
-    if (req.ranges.empty()) {
-      ;
-    } else if (req.ranges.size() == 1) {
-      auto offsets =
-          detail::get_range_offset_and_length(req, res.body.size(), 0);
-      auto offset = offsets.first;
-      auto length = offsets.second;
-      auto content_range = detail::make_content_range_header_field(
-          offset, length, res.body.size());
-      res.set_header("Content-Range", content_range);
-      if (offset < res.body.size()) {
-        res.body = res.body.substr(offset, length);
-      } else {
-        res.body.clear();
-        res.status = 416;
-      }
-    } else {
-      std::string data;
-      if (detail::make_multipart_ranges_data(req, res, boundary, content_type,
-                                             data)) {
-        res.body.swap(data);
-      } else {
-        res.body.clear();
-        res.status = 416;
-      }
-    }
-
-    if (type != detail::EncodingType::None) {
-      std::unique_ptr<detail::compressor> compressor;
-      std::string content_encoding;
-
-      if (type == detail::EncodingType::Gzip) {
-#ifdef CPPHTTPLIB_ZLIB_SUPPORT
-        compressor = detail::make_unique<detail::gzip_compressor>();
-        content_encoding = "gzip";
-#endif
-      } else if (type == detail::EncodingType::Brotli) {
-#ifdef CPPHTTPLIB_BROTLI_SUPPORT
-        compressor = detail::make_unique<detail::brotli_compressor>();
-        content_encoding = "br";
-#endif
-      }
-
-      if (compressor) {
-        std::string compressed;
-        if (compressor->compress(res.body.data(), res.body.size(), true,
-                                 [&](const char *data, size_t data_len) {
-                                   compressed.append(data, data_len);
-                                   return true;
-                                 })) {
-          res.body.swap(compressed);
-          res.set_header("Content-Encoding", content_encoding);
-        }
-      }
-    }
-
-    auto length = std::to_string(res.body.size());
-    res.set_header("Content-Length", length);
-  }
-}
-
-inline bool Server::dispatch_request_for_content_reader(
-    Request &req, Response &res, ContentReader content_reader,
-    const HandlersForContentReader &handlers) {
-  for (const auto &x : handlers) {
-    const auto &pattern = x.first;
-    const auto &handler = x.second;
-
-    if (std::regex_match(req.path, req.matches, pattern)) {
-      handler(req, res, content_reader);
-      return true;
-    }
-  }
-  return false;
-}
-
-inline bool
-Server::process_request(Stream &strm, bool close_connection,
-                        bool &connection_closed,
-                        const std::function<void(Request &)> &setup_request) {
-  std::array<char, 2048> buf{};
-
-  detail::stream_line_reader line_reader(strm, buf.data(), buf.size());
-
-  // Connection has been closed on client
-  if (!line_reader.getline()) { return false; }
-
-  Request req;
-  Response res;
-
-  res.version = "HTTP/1.1";
-
-  for (const auto &header : default_headers_) {
-    if (res.headers.find(header.first) == res.headers.end()) {
-      res.headers.insert(header);
-    }
-  }
-
-#ifdef _WIN32
-  // TODO: Increase FD_SETSIZE statically (libzmq), dynamically (MySQL).
-#else
-#ifndef CPPHTTPLIB_USE_POLL
-  // Socket file descriptor exceeded FD_SETSIZE...
-  if (strm.socket() >= FD_SETSIZE) {
-    Headers dummy;
-    detail::read_headers(strm, dummy);
-    res.status = 500;
-    return write_response(strm, close_connection, req, res);
-  }
-#endif
-#endif
-
-  // Check if the request URI doesn't exceed the limit
-  if (line_reader.size() > CPPHTTPLIB_REQUEST_URI_MAX_LENGTH) {
-    Headers dummy;
-    detail::read_headers(strm, dummy);
-    res.status = 414;
-    return write_response(strm, close_connection, req, res);
-  }
-
-  // Request line and headers
-  if (!parse_request_line(line_reader.ptr(), req) ||
-      !detail::read_headers(strm, req.headers)) {
-    res.status = 400;
-    return write_response(strm, close_connection, req, res);
-  }
-
-  if (req.get_header_value("Connection") == "close") {
-    connection_closed = true;
-  }
-
-  if (req.version == "HTTP/1.0" &&
-      req.get_header_value("Connection") != "Keep-Alive") {
-    connection_closed = true;
-  }
-
-  strm.get_remote_ip_and_port(req.remote_addr, req.remote_port);
-  req.set_header("REMOTE_ADDR", req.remote_addr);
-  req.set_header("REMOTE_PORT", std::to_string(req.remote_port));
-
-  if (req.has_header("Range")) {
-    const auto &range_header_value = req.get_header_value("Range");
-    if (!detail::parse_range_header(range_header_value, req.ranges)) {
-      res.status = 416;
-      return write_response(strm, close_connection, req, res);
-    }
-  }
-
-  if (setup_request) { setup_request(req); }
-
-  if (req.get_header_value("Expect") == "100-continue") {
-    auto status = 100;
-    if (expect_100_continue_handler_) {
-      status = expect_100_continue_handler_(req, res);
-    }
-    switch (status) {
-    case 100:
-    case 417:
-      strm.write_format("HTTP/1.1 %d %s\r\n\r\n", status,
-                        detail::status_message(status));
-      break;
-    default: return write_response(strm, close_connection, req, res);
-    }
-  }
-
-  // Rounting
-  bool routed = false;
-  try {
-    routed = routing(req, res, strm);
-  } catch (std::exception &e) {
-    if (exception_handler_) {
-      exception_handler_(req, res, e);
-      routed = true;
-    } else {
-      res.status = 500;
-      res.set_header("EXCEPTION_WHAT", e.what());
-    }
-  } catch (...) {
-    res.status = 500;
-    res.set_header("EXCEPTION_WHAT", "UNKNOWN");
-  }
-
-  if (routed) {
-    if (res.status == -1) { res.status = req.ranges.empty() ? 200 : 206; }
-    return write_response_with_content(strm, close_connection, req, res);
-  } else {
-    if (res.status == -1) { res.status = 404; }
-    return write_response(strm, close_connection, req, res);
-  }
-}
-
-inline bool Server::is_valid() const { return true; }
-
-inline bool Server::process_and_close_socket(socket_t sock) {
-  auto ret = detail::process_server_socket(
-      sock, keep_alive_max_count_, keep_alive_timeout_sec_, read_timeout_sec_,
-      read_timeout_usec_, write_timeout_sec_, write_timeout_usec_,
-      [this](Stream &strm, bool close_connection, bool &connection_closed) {
-        return process_request(strm, close_connection, connection_closed,
-                               nullptr);
-      });
-
-  detail::shutdown_socket(sock);
-  detail::close_socket(sock);
-  return ret;
-}
-
-// HTTP client implementation
-inline ClientImpl::ClientImpl(const std::string &host)
-    : ClientImpl(host, 80, std::string(), std::string()) {}
-
-inline ClientImpl::ClientImpl(const std::string &host, int port)
-    : ClientImpl(host, port, std::string(), std::string()) {}
-
-inline ClientImpl::ClientImpl(const std::string &host, int port,
-                              const std::string &client_cert_path,
-                              const std::string &client_key_path)
-    : host_(host), port_(port),
-      host_and_port_(adjust_host_string(host) + ":" + std::to_string(port)),
-      client_cert_path_(client_cert_path), client_key_path_(client_key_path) {}
-
-inline ClientImpl::~ClientImpl() {
-  std::lock_guard<std::mutex> guard(socket_mutex_);
-  shutdown_socket(socket_);
-  close_socket(socket_);
-}
-
-inline bool ClientImpl::is_valid() const { return true; }
-
-inline void ClientImpl::copy_settings(const ClientImpl &rhs) {
-  client_cert_path_ = rhs.client_cert_path_;
-  client_key_path_ = rhs.client_key_path_;
-  connection_timeout_sec_ = rhs.connection_timeout_sec_;
-  read_timeout_sec_ = rhs.read_timeout_sec_;
-  read_timeout_usec_ = rhs.read_timeout_usec_;
-  write_timeout_sec_ = rhs.write_timeout_sec_;
-  write_timeout_usec_ = rhs.write_timeout_usec_;
-  basic_auth_username_ = rhs.basic_auth_username_;
-  basic_auth_password_ = rhs.basic_auth_password_;
-  bearer_token_auth_token_ = rhs.bearer_token_auth_token_;
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  digest_auth_username_ = rhs.digest_auth_username_;
-  digest_auth_password_ = rhs.digest_auth_password_;
-#endif
-  keep_alive_ = rhs.keep_alive_;
-  follow_location_ = rhs.follow_location_;
-  url_encode_ = rhs.url_encode_;
-  address_family_ = rhs.address_family_;
-  tcp_nodelay_ = rhs.tcp_nodelay_;
-  socket_options_ = rhs.socket_options_;
-  compress_ = rhs.compress_;
-  decompress_ = rhs.decompress_;
-  interface_ = rhs.interface_;
-  proxy_host_ = rhs.proxy_host_;
-  proxy_port_ = rhs.proxy_port_;
-  proxy_basic_auth_username_ = rhs.proxy_basic_auth_username_;
-  proxy_basic_auth_password_ = rhs.proxy_basic_auth_password_;
-  proxy_bearer_token_auth_token_ = rhs.proxy_bearer_token_auth_token_;
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  proxy_digest_auth_username_ = rhs.proxy_digest_auth_username_;
-  proxy_digest_auth_password_ = rhs.proxy_digest_auth_password_;
-#endif
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  ca_cert_file_path_ = rhs.ca_cert_file_path_;
-  ca_cert_dir_path_ = rhs.ca_cert_dir_path_;
-  ca_cert_store_ = rhs.ca_cert_store_;
-#endif
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  server_certificate_verification_ = rhs.server_certificate_verification_;
-#endif
-  logger_ = rhs.logger_;
-}
-
-inline socket_t ClientImpl::create_client_socket(Error &error) const {
-  if (!proxy_host_.empty() && proxy_port_ != -1) {
-    return detail::create_client_socket(
-        proxy_host_.c_str(), proxy_port_, address_family_, tcp_nodelay_,
-        socket_options_, connection_timeout_sec_, connection_timeout_usec_,
-        read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,
-        write_timeout_usec_, interface_, error);
-  }
-  return detail::create_client_socket(
-      host_.c_str(), port_, address_family_, tcp_nodelay_, socket_options_,
-      connection_timeout_sec_, connection_timeout_usec_, read_timeout_sec_,
-      read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, interface_,
-      error);
-}
-
-inline bool ClientImpl::create_and_connect_socket(Socket &socket,
-                                                  Error &error) {
-  auto sock = create_client_socket(error);
-  if (sock == INVALID_SOCKET) { return false; }
-  socket.sock = sock;
-  return true;
-}
-
-inline void ClientImpl::shutdown_ssl(Socket & /*socket*/,
-                                     bool /*shutdown_gracefully*/) {
-  // If there are any requests in flight from threads other than us, then it's
-  // a thread-unsafe race because individual ssl* objects are not thread-safe.
-  assert(socket_requests_in_flight_ == 0 ||
-         socket_requests_are_from_thread_ == std::this_thread::get_id());
-}
-
-inline void ClientImpl::shutdown_socket(Socket &socket) {
-  if (socket.sock == INVALID_SOCKET) { return; }
-  detail::shutdown_socket(socket.sock);
-}
-
-inline void ClientImpl::close_socket(Socket &socket) {
-  // If there are requests in flight in another thread, usually closing
-  // the socket will be fine and they will simply receive an error when
-  // using the closed socket, but it is still a bug since rarely the OS
-  // may reassign the socket id to be used for a new socket, and then
-  // suddenly they will be operating on a live socket that is different
-  // than the one they intended!
-  assert(socket_requests_in_flight_ == 0 ||
-         socket_requests_are_from_thread_ == std::this_thread::get_id());
-
-  // It is also a bug if this happens while SSL is still active
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  assert(socket.ssl == nullptr);
-#endif
-  if (socket.sock == INVALID_SOCKET) { return; }
-  detail::close_socket(socket.sock);
-  socket.sock = INVALID_SOCKET;
-}
-
-inline bool ClientImpl::read_response_line(Stream &strm, const Request &req,
-                                           Response &res) {
-  std::array<char, 2048> buf;
-
-  detail::stream_line_reader line_reader(strm, buf.data(), buf.size());
-
-  if (!line_reader.getline()) { return false; }
-
-  const static std::regex re("(HTTP/1\\.[01]) (\\d{3})(?: (.*?))?\r\n");
-
-  std::cmatch m;
-  if (!std::regex_match(line_reader.ptr(), m, re)) {
-    return req.method == "CONNECT";
-  }
-  res.version = std::string(m[1]);
-  res.status = std::stoi(std::string(m[2]));
-  res.reason = std::string(m[3]);
-
-  // Ignore '100 Continue'
-  while (res.status == 100) {
-    if (!line_reader.getline()) { return false; } // CRLF
-    if (!line_reader.getline()) { return false; } // next response line
-
-    if (!std::regex_match(line_reader.ptr(), m, re)) { return false; }
-    res.version = std::string(m[1]);
-    res.status = std::stoi(std::string(m[2]));
-    res.reason = std::string(m[3]);
-  }
-
-  return true;
-}
-
-inline bool ClientImpl::send(Request &req, Response &res, Error &error) {
-  std::lock_guard<std::recursive_mutex> request_mutex_guard(request_mutex_);
-
-  {
-    std::lock_guard<std::mutex> guard(socket_mutex_);
-    // Set this to false immediately - if it ever gets set to true by the end of
-    // the request, we know another thread instructed us to close the socket.
-    socket_should_be_closed_when_request_is_done_ = false;
-
-    auto is_alive = false;
-    if (socket_.is_open()) {
-      is_alive = detail::select_write(socket_.sock, 0, 0) > 0;
-      if (!is_alive) {
-        // Attempt to avoid sigpipe by shutting down nongracefully if it seems
-        // like the other side has already closed the connection Also, there
-        // cannot be any requests in flight from other threads since we locked
-        // request_mutex_, so safe to close everything immediately
-        const bool shutdown_gracefully = false;
-        shutdown_ssl(socket_, shutdown_gracefully);
-        shutdown_socket(socket_);
-        close_socket(socket_);
-      }
-    }
-
-    if (!is_alive) {
-      if (!create_and_connect_socket(socket_, error)) { return false; }
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-      // TODO: refactoring
-      if (is_ssl()) {
-        auto &scli = static_cast<SSLClient &>(*this);
-        if (!proxy_host_.empty() && proxy_port_ != -1) {
-          bool success = false;
-          if (!scli.connect_with_proxy(socket_, res, success, error)) {
-            return success;
-          }
-        }
-
-        if (!scli.initialize_ssl(socket_, error)) { return false; }
-      }
-#endif
-    }
-
-    // Mark the current socket as being in use so that it cannot be closed by
-    // anyone else while this request is ongoing, even though we will be
-    // releasing the mutex.
-    if (socket_requests_in_flight_ > 1) {
-      assert(socket_requests_are_from_thread_ == std::this_thread::get_id());
-    }
-    socket_requests_in_flight_ += 1;
-    socket_requests_are_from_thread_ = std::this_thread::get_id();
-  }
-
-  for (const auto &header : default_headers_) {
-    if (req.headers.find(header.first) == req.headers.end()) {
-      req.headers.insert(header);
-    }
-  }
-
-  auto close_connection = !keep_alive_;
-  auto ret = process_socket(socket_, [&](Stream &strm) {
-    return handle_request(strm, req, res, close_connection, error);
-  });
-
-  // Briefly lock mutex in order to mark that a request is no longer ongoing
-  {
-    std::lock_guard<std::mutex> guard(socket_mutex_);
-    socket_requests_in_flight_ -= 1;
-    if (socket_requests_in_flight_ <= 0) {
-      assert(socket_requests_in_flight_ == 0);
-      socket_requests_are_from_thread_ = std::thread::id();
-    }
-
-    if (socket_should_be_closed_when_request_is_done_ || close_connection ||
-        !ret) {
-      shutdown_ssl(socket_, true);
-      shutdown_socket(socket_);
-      close_socket(socket_);
-    }
-  }
-
-  if (!ret) {
-    if (error == Error::Success) { error = Error::Unknown; }
-  }
-
-  return ret;
-}
-
-inline Result ClientImpl::send(const Request &req) {
-  auto req2 = req;
-  return send_(std::move(req2));
-}
-
-inline Result ClientImpl::send_(Request &&req) {
-  auto res = detail::make_unique<Response>();
-  auto error = Error::Success;
-  auto ret = send(req, *res, error);
-  return Result{ret ? std::move(res) : nullptr, error, std::move(req.headers)};
-}
-
-inline bool ClientImpl::handle_request(Stream &strm, Request &req,
-                                       Response &res, bool close_connection,
-                                       Error &error) {
-  if (req.path.empty()) {
-    error = Error::Connection;
-    return false;
-  }
-
-  auto req_save = req;
-
-  bool ret;
-
-  if (!is_ssl() && !proxy_host_.empty() && proxy_port_ != -1) {
-    auto req2 = req;
-    req2.path = "http://" + host_and_port_ + req.path;
-    ret = process_request(strm, req2, res, close_connection, error);
-    req = req2;
-    req.path = req_save.path;
-  } else {
-    ret = process_request(strm, req, res, close_connection, error);
-  }
-
-  if (!ret) { return false; }
-
-  if (300 < res.status && res.status < 400 && follow_location_) {
-    req = req_save;
-    ret = redirect(req, res, error);
-  }
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-  if ((res.status == 401 || res.status == 407) &&
-      req.authorization_count_ < 5) {
-    auto is_proxy = res.status == 407;
-    const auto &username =
-        is_proxy ? proxy_digest_auth_username_ : digest_auth_username_;
-    const auto &password =
-        is_proxy ? proxy_digest_auth_password_ : digest_auth_password_;
-
-    if (!username.empty() && !password.empty()) {
-      std::map<std::string, std::string> auth;
-      if (detail::parse_www_authenticate(res, auth, is_proxy)) {
-        Request new_req = req;
-        new_req.authorization_count_ += 1;
-        new_req.headers.erase(is_proxy ? "Proxy-Authorization"
-                                       : "Authorization");
-        new_req.headers.insert(detail::make_digest_authentication_header(
-            req, auth, new_req.authorization_count_, detail::random_string(10),
-            username, password, is_proxy));
-
-        Response new_res;
-
-        ret = send(new_req, new_res, error);
-        if (ret) { res = new_res; }
-      }
-    }
-  }
-#endif
-
-  return ret;
-}
-
-inline bool ClientImpl::redirect(Request &req, Response &res, Error &error) {
-  if (req.redirect_count_ == 0) {
-    error = Error::ExceedRedirectCount;
-    return false;
-  }
-
-  auto location = detail::decode_url(res.get_header_value("location"), true);
-  if (location.empty()) { return false; }
-
-  const static std::regex re(
-      R"((?:(https?):)?(?://(?:\[([\d:]+)\]|([^:/?#]+))(?::(\d+))?)?([^?#]*(?:\?[^#]*)?)(?:#.*)?)");
-
-  std::smatch m;
-  if (!std::regex_match(location, m, re)) { return false; }
-
-  auto scheme = is_ssl() ? "https" : "http";
-
-  auto next_scheme = m[1].str();
-  auto next_host = m[2].str();
-  if (next_host.empty()) { next_host = m[3].str(); }
-  auto port_str = m[4].str();
-  auto next_path = m[5].str();
-
-  auto next_port = port_;
-  if (!port_str.empty()) {
-    next_port = std::stoi(port_str);
-  } else if (!next_scheme.empty()) {
-    next_port = next_scheme == "https" ? 443 : 80;
-  }
-
-  if (next_scheme.empty()) { next_scheme = scheme; }
-  if (next_host.empty()) { next_host = host_; }
-  if (next_path.empty()) { next_path = "/"; }
-
-  if (next_scheme == scheme && next_host == host_ && next_port == port_) {
-    return detail::redirect(*this, req, res, next_path, location, error);
-  } else {
-    if (next_scheme == "https") {
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-      SSLClient cli(next_host.c_str(), next_port);
-      cli.copy_settings(*this);
-      if (ca_cert_store_) { cli.set_ca_cert_store(ca_cert_store_); }
-      return detail::redirect(cli, req, res, next_path, location, error);
-#else
-      return false;
-#endif
-    } else {
-      ClientImpl cli(next_host.c_str(), next_port);
-      cli.copy_settings(*this);
-      return detail::redirect(cli, req, res, next_path, location, error);
-    }
-  }
-}
-
-inline bool ClientImpl::write_content_with_provider(Stream &strm,
-                                                    const Request &req,
-                                                    Error &error) {
-  auto is_shutting_down = []() { return false; };
-
-  if (req.is_chunked_content_provider_) {
-    // TODO: Brotli suport
-    std::unique_ptr<detail::compressor> compressor;
-#ifdef CPPHTTPLIB_ZLIB_SUPPORT
-    if (compress_) {
-      compressor = detail::make_unique<detail::gzip_compressor>();
-    } else
-#endif
-    {
-      compressor = detail::make_unique<detail::nocompressor>();
-    }
-
-    return detail::write_content_chunked(strm, req.content_provider_,
-                                         is_shutting_down, *compressor, error);
-  } else {
-    return detail::write_content(strm, req.content_provider_, 0,
-                                 req.content_length_, is_shutting_down, error);
-  }
-} // namespace httplib
-
-inline bool ClientImpl::write_request(Stream &strm, Request &req,
-                                      bool close_connection, Error &error) {
-  // Prepare additional headers
-  if (close_connection) {
-    if (!req.has_header("Connection")) {
-      req.headers.emplace("Connection", "close");
-    }
-  }
-
-  if (!req.has_header("Host")) {
-    if (is_ssl()) {
-      if (port_ == 443) {
-        req.headers.emplace("Host", host_);
-      } else {
-        req.headers.emplace("Host", host_and_port_);
-      }
-    } else {
-      if (port_ == 80) {
-        req.headers.emplace("Host", host_);
-      } else {
-        req.headers.emplace("Host", host_and_port_);
-      }
-    }
-  }
-
-  if (!req.has_header("Accept")) { req.headers.emplace("Accept", "*/*"); }
-
-  if (!req.has_header("User-Agent")) {
-    req.headers.emplace("User-Agent", "cpp-httplib/0.9");
-  }
-
-  if (req.body.empty()) {
-    if (req.content_provider_) {
-      if (!req.is_chunked_content_provider_) {
-        if (!req.has_header("Content-Length")) {
-          auto length = std::to_string(req.content_length_);
-          req.headers.emplace("Content-Length", length);
-        }
-      }
-    } else {
-      if (req.method == "POST" || req.method == "PUT" ||
-          req.method == "PATCH") {
-        req.headers.emplace("Content-Length", "0");
-      }
-    }
-  } else {
-    if (!req.has_header("Content-Type")) {
-      req.headers.emplace("Content-Type", "text/plain");
-    }
-
-    if (!req.has_header("Content-Length")) {
-      auto length = std::to_string(req.body.size());
-      req.headers.emplace("Content-Length", length);
-    }
-  }
-
-  if (!basic_auth_password_.empty() || !basic_auth_username_.empty()) {
-    if (!req.has_header("Authorization")) {
-      req.headers.insert(make_basic_authentication_header(
-          basic_auth_username_, basic_auth_password_, false));
-    }
-  }
-
-  if (!proxy_basic_auth_username_.empty() &&
-      !proxy_basic_auth_password_.empty()) {
-    if (!req.has_header("Proxy-Authorization")) {
-      req.headers.insert(make_basic_authentication_header(
-          proxy_basic_auth_username_, proxy_basic_auth_password_, true));
-    }
-  }
-
-  if (!bearer_token_auth_token_.empty()) {
-    if (!req.has_header("Authorization")) {
-      req.headers.insert(make_bearer_token_authentication_header(
-          bearer_token_auth_token_, false));
-    }
-  }
-
-  if (!proxy_bearer_token_auth_token_.empty()) {
-    if (!req.has_header("Proxy-Authorization")) {
-      req.headers.insert(make_bearer_token_authentication_header(
-          proxy_bearer_token_auth_token_, true));
-    }
-  }
-
-  // Request line and headers
-  {
-    detail::BufferStream bstrm;
-
-    const auto &path = url_encode_ ? detail::encode_url(req.path) : req.path;
-    bstrm.write_format("%s %s HTTP/1.1\r\n", req.method.c_str(), path.c_str());
-
-    detail::write_headers(bstrm, req.headers);
-
-    // Flush buffer
-    auto &data = bstrm.get_buffer();
-    if (!detail::write_data(strm, data.data(), data.size())) {
-      error = Error::Write;
-      return false;
-    }
-  }
-
-  // Body
-  if (req.body.empty()) {
-    return write_content_with_provider(strm, req, error);
-  }
-
-  return detail::write_data(strm, req.body.data(), req.body.size());
-}
-
-inline std::unique_ptr<Response> ClientImpl::send_with_content_provider(
-    Request &req,
-    // const char *method, const char *path, const Headers &headers,
-    const char *body, size_t content_length, ContentProvider content_provider,
-    ContentProviderWithoutLength content_provider_without_length,
-    const char *content_type, Error &error) {
-
-  // Request req;
-  // req.method = method;
-  // req.headers = headers;
-  // req.path = path;
-
-  if (content_type) { req.headers.emplace("Content-Type", content_type); }
-
-#ifdef CPPHTTPLIB_ZLIB_SUPPORT
-  if (compress_) { req.headers.emplace("Content-Encoding", "gzip"); }
-#endif
-
-#ifdef CPPHTTPLIB_ZLIB_SUPPORT
-  if (compress_ && !content_provider_without_length) {
-    // TODO: Brotli support
-    detail::gzip_compressor compressor;
-
-    if (content_provider) {
-      auto ok = true;
-      size_t offset = 0;
-      DataSink data_sink;
-
-      data_sink.write = [&](const char *data, size_t data_len) -> bool {
-        if (ok) {
-          auto last = offset + data_len == content_length;
-
-          auto ret = compressor.compress(
-              data, data_len, last, [&](const char *data, size_t data_len) {
-                req.body.append(data, data_len);
-                return true;
-              });
-
-          if (ret) {
-            offset += data_len;
-          } else {
-            ok = false;
-          }
-        }
-        return ok;
-      };
-
-      data_sink.is_writable = [&](void) { return ok && true; };
-
-      while (ok && offset < content_length) {
-        if (!content_provider(offset, content_length - offset, data_sink)) {
-          error = Error::Canceled;
-          return nullptr;
-        }
-      }
-    } else {
-      if (!compressor.compress(body, content_length, true,
-                               [&](const char *data, size_t data_len) {
-                                 req.body.append(data, data_len);
-                                 return true;
-                               })) {
-        error = Error::Compression;
-        return nullptr;
-      }
-    }
-  } else
-#endif
-  {
-    if (content_provider) {
-      req.content_length_ = content_length;
-      req.content_provider_ = std::move(content_provider);
-      req.is_chunked_content_provider_ = false;
-    } else if (content_provider_without_length) {
-      req.content_length_ = 0;
-      req.content_provider_ = detail::ContentProviderAdapter(
-          std::move(content_provider_without_length));
-      req.is_chunked_content_provider_ = true;
-      req.headers.emplace("Transfer-Encoding", "chunked");
-    } else {
-      req.body.assign(body, content_length);
-      ;
-    }
-  }
-
-  auto res = detail::make_unique<Response>();
-  return send(req, *res, error) ? std::move(res) : nullptr;
-}
-
-inline Result ClientImpl::send_with_content_provider(
-    const char *method, const char *path, const Headers &headers,
-    const char *body, size_t content_length, ContentProvider content_provider,
-    ContentProviderWithoutLength content_provider_without_length,
-    const char *content_type) {
-  Request req;
-  req.method = method;
-  req.headers = headers;
-  req.path = path;
-
-  auto error = Error::Success;
-
-  auto res = send_with_content_provider(
-      req,
-      // method, path, headers,
-      body, content_length, std::move(content_provider),
-      std::move(content_provider_without_length), content_type, error);
-
-  return Result{std::move(res), error, std::move(req.headers)};
-}
-
-inline std::string
-ClientImpl::adjust_host_string(const std::string &host) const {
-  if (host.find(':') != std::string::npos) { return "[" + host + "]"; }
-  return host;
-}
-
-inline bool ClientImpl::process_request(Stream &strm, Request &req,
-                                        Response &res, bool close_connection,
-                                        Error &error) {
-  // Send request
-  if (!write_request(strm, req, close_connection, error)) { return false; }
-
-  // Receive response and headers
-  if (!read_response_line(strm, req, res) ||
-      !detail::read_headers(strm, res.headers)) {
-    error = Error::Read;
-    return false;
-  }
-
-  // Body
-  if ((res.status != 204) && req.method != "HEAD" && req.method != "CONNECT") {
-    auto redirect = 300 < res.status && res.status < 400 && follow_location_;
-
-    if (req.response_handler && !redirect) {
-      if (!req.response_handler(res)) {
-        error = Error::Canceled;
-        return false;
-      }
-    }
-
-    auto out =
-        req.content_receiver
-            ? static_cast<ContentReceiverWithProgress>(
-                  [&](const char *buf, size_t n, uint64_t off, uint64_t len) {
-                    if (redirect) { return true; }
-                    auto ret = req.content_receiver(buf, n, off, len);
-                    if (!ret) { error = Error::Canceled; }
-                    return ret;
-                  })
-            : static_cast<ContentReceiverWithProgress>(
-                  [&](const char *buf, size_t n, uint64_t /*off*/,
-                      uint64_t /*len*/) {
-                    if (res.body.size() + n > res.body.max_size()) {
-                      return false;
-                    }
-                    res.body.append(buf, n);
-                    return true;
-                  });
-
-    auto progress = [&](uint64_t current, uint64_t total) {
-      if (!req.progress || redirect) { return true; }
-      auto ret = req.progress(current, total);
-      if (!ret) { error = Error::Canceled; }
-      return ret;
-    };
-
-    int dummy_status;
-    if (!detail::read_content(strm, res, (std::numeric_limits<size_t>::max)(),
-                              dummy_status, std::move(progress), std::move(out),
-                              decompress_)) {
-      if (error != Error::Canceled) { error = Error::Read; }
-      return false;
-    }
-  }
-
-  if (res.get_header_value("Connection") == "close" ||
-      (res.version == "HTTP/1.0" && res.reason != "Connection established")) {
-    // TODO this requires a not-entirely-obvious chain of calls to be correct
-    // for this to be safe. Maybe a code refactor (such as moving this out to
-    // the send function and getting rid of the recursiveness of the mutex)
-    // could make this more obvious.
-
-    // This is safe to call because process_request is only called by
-    // handle_request which is only called by send, which locks the request
-    // mutex during the process. It would be a bug to call it from a different
-    // thread since it's a thread-safety issue to do these things to the socket
-    // if another thread is using the socket.
-    std::lock_guard<std::mutex> guard(socket_mutex_);
-    shutdown_ssl(socket_, true);
-    shutdown_socket(socket_);
-    close_socket(socket_);
-  }
-
-  // Log
-  if (logger_) { logger_(req, res); }
-
-  return true;
-}
-
-inline bool
-ClientImpl::process_socket(const Socket &socket,
-                           std::function<bool(Stream &strm)> callback) {
-  return detail::process_client_socket(
-      socket.sock, read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,
-      write_timeout_usec_, std::move(callback));
-}
-
-inline bool ClientImpl::is_ssl() const { return false; }
-
-inline Result ClientImpl::Get(const char *path) {
-  return Get(path, Headers(), Progress());
-}
-
-inline Result ClientImpl::Get(const char *path, Progress progress) {
-  return Get(path, Headers(), std::move(progress));
-}
-
-inline Result ClientImpl::Get(const char *path, const Headers &headers) {
-  return Get(path, headers, Progress());
-}
-
-inline Result ClientImpl::Get(const char *path, const Headers &headers,
-                              Progress progress) {
-  Request req;
-  req.method = "GET";
-  req.path = path;
-  req.headers = headers;
-  req.progress = std::move(progress);
-
-  return send_(std::move(req));
-}
-
-inline Result ClientImpl::Get(const char *path,
-                              ContentReceiver content_receiver) {
-  return Get(path, Headers(), nullptr, std::move(content_receiver), nullptr);
-}
-
-inline Result ClientImpl::Get(const char *path,
-                              ContentReceiver content_receiver,
-                              Progress progress) {
-  return Get(path, Headers(), nullptr, std::move(content_receiver),
-             std::move(progress));
-}
-
-inline Result ClientImpl::Get(const char *path, const Headers &headers,
-                              ContentReceiver content_receiver) {
-  return Get(path, headers, nullptr, std::move(content_receiver), nullptr);
-}
-
-inline Result ClientImpl::Get(const char *path, const Headers &headers,
-                              ContentReceiver content_receiver,
-                              Progress progress) {
-  return Get(path, headers, nullptr, std::move(content_receiver),
-             std::move(progress));
-}
-
-inline Result ClientImpl::Get(const char *path,
-                              ResponseHandler response_handler,
-                              ContentReceiver content_receiver) {
-  return Get(path, Headers(), std::move(response_handler),
-             std::move(content_receiver), nullptr);
-}
-
-inline Result ClientImpl::Get(const char *path, const Headers &headers,
-                              ResponseHandler response_handler,
-                              ContentReceiver content_receiver) {
-  return Get(path, headers, std::move(response_handler),
-             std::move(content_receiver), nullptr);
-}
-
-inline Result ClientImpl::Get(const char *path,
-                              ResponseHandler response_handler,
-                              ContentReceiver content_receiver,
-                              Progress progress) {
-  return Get(path, Headers(), std::move(response_handler),
-             std::move(content_receiver), std::move(progress));
-}
-
-inline Result ClientImpl::Get(const char *path, const Headers &headers,
-                              ResponseHandler response_handler,
-                              ContentReceiver content_receiver,
-                              Progress progress) {
-  Request req;
-  req.method = "GET";
-  req.path = path;
-  req.headers = headers;
-  req.response_handler = std::move(response_handler);
-  req.content_receiver =
-      [content_receiver](const char *data, size_t data_length,
-                         uint64_t /*offset*/, uint64_t /*total_length*/) {
-        return content_receiver(data, data_length);
-      };
-  req.progress = std::move(progress);
-
-  return send_(std::move(req));
-}
-
-inline Result ClientImpl::Get(const char *path, const Params &params,
-                              const Headers &headers, Progress progress) {
-  if (params.empty()) { return Get(path, headers); }
-
-  std::string path_with_query = detail::append_query_params(path, params);
-  return Get(path_with_query.c_str(), headers, progress);
-}
-
-inline Result ClientImpl::Get(const char *path, const Params &params,
-                              const Headers &headers,
-                              ContentReceiver content_receiver,
-                              Progress progress) {
-  return Get(path, params, headers, nullptr, content_receiver, progress);
-}
-
-inline Result ClientImpl::Get(const char *path, const Params &params,
-                              const Headers &headers,
-                              ResponseHandler response_handler,
-                              ContentReceiver content_receiver,
-                              Progress progress) {
-  if (params.empty()) {
-    return Get(path, headers, response_handler, content_receiver, progress);
-  }
-
-  std::string path_with_query = detail::append_query_params(path, params);
-  return Get(path_with_query.c_str(), headers, response_handler,
-             content_receiver, progress);
-}
-
-inline Result ClientImpl::Head(const char *path) {
-  return Head(path, Headers());
-}
-
-inline Result ClientImpl::Head(const char *path, const Headers &headers) {
-  Request req;
-  req.method = "HEAD";
-  req.headers = headers;
-  req.path = path;
-
-  return send_(std::move(req));
-}
-
-inline Result ClientImpl::Post(const char *path) {
-  return Post(path, std::string(), nullptr);
-}
-
-inline Result ClientImpl::Post(const char *path, const char *body,
-                               size_t content_length,
-                               const char *content_type) {
-  return Post(path, Headers(), body, content_length, content_type);
-}
-
-inline Result ClientImpl::Post(const char *path, const Headers &headers,
-                               const char *body, size_t content_length,
-                               const char *content_type) {
-  return send_with_content_provider("POST", path, headers, body, content_length,
-                                    nullptr, nullptr, content_type);
-}
-
-inline Result ClientImpl::Post(const char *path, const std::string &body,
-                               const char *content_type) {
-  return Post(path, Headers(), body, content_type);
-}
-
-inline Result ClientImpl::Post(const char *path, const Headers &headers,
-                               const std::string &body,
-                               const char *content_type) {
-  return send_with_content_provider("POST", path, headers, body.data(),
-                                    body.size(), nullptr, nullptr,
-                                    content_type);
-}
-
-inline Result ClientImpl::Post(const char *path, const Params &params) {
-  return Post(path, Headers(), params);
-}
-
-inline Result ClientImpl::Post(const char *path, size_t content_length,
-                               ContentProvider content_provider,
-                               const char *content_type) {
-  return Post(path, Headers(), content_length, std::move(content_provider),
-              content_type);
-}
-
-inline Result ClientImpl::Post(const char *path,
-                               ContentProviderWithoutLength content_provider,
-                               const char *content_type) {
-  return Post(path, Headers(), std::move(content_provider), content_type);
-}
-
-inline Result ClientImpl::Post(const char *path, const Headers &headers,
-                               size_t content_length,
-                               ContentProvider content_provider,
-                               const char *content_type) {
-  return send_with_content_provider("POST", path, headers, nullptr,
-                                    content_length, std::move(content_provider),
-                                    nullptr, content_type);
-}
-
-inline Result ClientImpl::Post(const char *path, const Headers &headers,
-                               ContentProviderWithoutLength content_provider,
-                               const char *content_type) {
-  return send_with_content_provider("POST", path, headers, nullptr, 0, nullptr,
-                                    std::move(content_provider), content_type);
-}
-
-inline Result ClientImpl::Post(const char *path, const Headers &headers,
-                               const Params &params) {
-  auto query = detail::params_to_query_str(params);
-  return Post(path, headers, query, "application/x-www-form-urlencoded");
-}
-
-inline Result ClientImpl::Post(const char *path,
-                               const MultipartFormDataItems &items) {
-  return Post(path, Headers(), items);
-}
-
-inline Result ClientImpl::Post(const char *path, const Headers &headers,
-                               const MultipartFormDataItems &items) {
-  return Post(path, headers, items, detail::make_multipart_data_boundary());
-}
-inline Result ClientImpl::Post(const char *path, const Headers &headers,
-                               const MultipartFormDataItems &items,
-                               const std::string &boundary) {
-  for (size_t i = 0; i < boundary.size(); i++) {
-    char c = boundary[i];
-    if (!std::isalnum(c) && c != '-' && c != '_') {
-      return Result{nullptr, Error::UnsupportedMultipartBoundaryChars};
-    }
-  }
-
-  std::string body;
-
-  for (const auto &item : items) {
-    body += "--" + boundary + "\r\n";
-    body += "Content-Disposition: form-data; name=\"" + item.name + "\"";
-    if (!item.filename.empty()) {
-      body += "; filename=\"" + item.filename + "\"";
-    }
-    body += "\r\n";
-    if (!item.content_type.empty()) {
-      body += "Content-Type: " + item.content_type + "\r\n";
-    }
-    body += "\r\n";
-    body += item.content + "\r\n";
-  }
-
-  body += "--" + boundary + "--\r\n";
-
-  std::string content_type = "multipart/form-data; boundary=" + boundary;
-  return Post(path, headers, body, content_type.c_str());
-}
-
-inline Result ClientImpl::Put(const char *path) {
-  return Put(path, std::string(), nullptr);
-}
-
-inline Result ClientImpl::Put(const char *path, const char *body,
-                              size_t content_length, const char *content_type) {
-  return Put(path, Headers(), body, content_length, content_type);
-}
-
-inline Result ClientImpl::Put(const char *path, const Headers &headers,
-                              const char *body, size_t content_length,
-                              const char *content_type) {
-  return send_with_content_provider("PUT", path, headers, body, content_length,
-                                    nullptr, nullptr, content_type);
-}
-
-inline Result ClientImpl::Put(const char *path, const std::string &body,
-                              const char *content_type) {
-  return Put(path, Headers(), body, content_type);
-}
-
-inline Result ClientImpl::Put(const char *path, const Headers &headers,
-                              const std::string &body,
-                              const char *content_type) {
-  return send_with_content_provider("PUT", path, headers, body.data(),
-                                    body.size(), nullptr, nullptr,
-                                    content_type);
-}
-
-inline Result ClientImpl::Put(const char *path, size_t content_length,
-                              ContentProvider content_provider,
-                              const char *content_type) {
-  return Put(path, Headers(), content_length, std::move(content_provider),
-             content_type);
-}
-
-inline Result ClientImpl::Put(const char *path,
-                              ContentProviderWithoutLength content_provider,
-                              const char *content_type) {
-  return Put(path, Headers(), std::move(content_provider), content_type);
-}
-
-inline Result ClientImpl::Put(const char *path, const Headers &headers,
-                              size_t content_length,
-                              ContentProvider content_provider,
-                              const char *content_type) {
-  return send_with_content_provider("PUT", path, headers, nullptr,
-                                    content_length, std::move(content_provider),
-                                    nullptr, content_type);
-}
-
-inline Result ClientImpl::Put(const char *path, const Headers &headers,
-                              ContentProviderWithoutLength content_provider,
-                              const char *content_type) {
-  return send_with_content_provider("PUT", path, headers, nullptr, 0, nullptr,
-                                    std::move(content_provider), content_type);
-}
-
-inline Result ClientImpl::Put(const char *path, const Params &params) {
-  return Put(path, Headers(), params);
-}
-
-inline Result ClientImpl::Put(const char *path, const Headers &headers,
-                              const Params &params) {
-  auto query = detail::params_to_query_str(params);
-  return Put(path, headers, query, "application/x-www-form-urlencoded");
-}
-
-inline Result ClientImpl::Patch(const char *path) {
-  return Patch(path, std::string(), nullptr);
-}
-
-inline Result ClientImpl::Patch(const char *path, const char *body,
-                                size_t content_length,
-                                const char *content_type) {
-  return Patch(path, Headers(), body, content_length, content_type);
-}
-
-inline Result ClientImpl::Patch(const char *path, const Headers &headers,
-                                const char *body, size_t content_length,
-                                const char *content_type) {
-  return send_with_content_provider("PATCH", path, headers, body,
-                                    content_length, nullptr, nullptr,
-                                    content_type);
-}
-
-inline Result ClientImpl::Patch(const char *path, const std::string &body,
-                                const char *content_type) {
-  return Patch(path, Headers(), body, content_type);
-}
-
-inline Result ClientImpl::Patch(const char *path, const Headers &headers,
-                                const std::string &body,
-                                const char *content_type) {
-  return send_with_content_provider("PATCH", path, headers, body.data(),
-                                    body.size(), nullptr, nullptr,
-                                    content_type);
-}
-
-inline Result ClientImpl::Patch(const char *path, size_t content_length,
-                                ContentProvider content_provider,
-                                const char *content_type) {
-  return Patch(path, Headers(), content_length, std::move(content_provider),
-               content_type);
-}
-
-inline Result ClientImpl::Patch(const char *path,
-                                ContentProviderWithoutLength content_provider,
-                                const char *content_type) {
-  return Patch(path, Headers(), std::move(content_provider), content_type);
-}
-
-inline Result ClientImpl::Patch(const char *path, const Headers &headers,
-                                size_t content_length,
-                                ContentProvider content_provider,
-                                const char *content_type) {
-  return send_with_content_provider("PATCH", path, headers, nullptr,
-                                    content_length, std::move(content_provider),
-                                    nullptr, content_type);
-}
-
-inline Result ClientImpl::Patch(const char *path, const Headers &headers,
-                                ContentProviderWithoutLength content_provider,
-                                const char *content_type) {
-  return send_with_content_provider("PATCH", path, headers, nullptr, 0, nullptr,
-                                    std::move(content_provider), content_type);
-}
-
-inline Result ClientImpl::Delete(const char *path) {
-  return Delete(path, Headers(), std::string(), nullptr);
-}
-
-inline Result ClientImpl::Delete(const char *path, const Headers &headers) {
-  return Delete(path, headers, std::string(), nullptr);
-}
-
-inline Result ClientImpl::Delete(const char *path, const char *body,
-                                 size_t content_length,
-                                 const char *content_type) {
-  return Delete(path, Headers(), body, content_length, content_type);
-}
-
-inline Result ClientImpl::Delete(const char *path, const Headers &headers,
-                                 const char *body, size_t content_length,
-                                 const char *content_type) {
-  Request req;
-  req.method = "DELETE";
-  req.headers = headers;
-  req.path = path;
-
-  if (content_type) { req.headers.emplace("Content-Type", content_type); }
-  req.body.assign(body, content_length);
-
-  return send_(std::move(req));
-}
-
-inline Result ClientImpl::Delete(const char *path, const std::string &body,
-                                 const char *content_type) {
-  return Delete(path, Headers(), body.data(), body.size(), content_type);
-}
-
-inline Result ClientImpl::Delete(const char *path, const Headers &headers,
-                                 const std::string &body,
-                                 const char *content_type) {
-  return Delete(path, headers, body.data(), body.size(), content_type);
-}
-
-inline Result ClientImpl::Options(const char *path) {
-  return Options(path, Headers());
-}
-
-inline Result ClientImpl::Options(const char *path, const Headers &headers) {
-  Request req;
-  req.method = "OPTIONS";
-  req.headers = headers;
-  req.path = path;
-
-  return send_(std::move(req));
-}
-
-inline size_t ClientImpl::is_socket_open() const {
-  std::lock_guard<std::mutex> guard(socket_mutex_);
-  return socket_.is_open();
-}
-
-inline void ClientImpl::stop() {
-  std::lock_guard<std::mutex> guard(socket_mutex_);
-
-  // If there is anything ongoing right now, the ONLY thread-safe thing we can
-  // do is to shutdown_socket, so that threads using this socket suddenly
-  // discover they can't read/write any more and error out. Everything else
-  // (closing the socket, shutting ssl down) is unsafe because these actions are
-  // not thread-safe.
-  if (socket_requests_in_flight_ > 0) {
-    shutdown_socket(socket_);
-
-    // Aside from that, we set a flag for the socket to be closed when we're
-    // done.
-    socket_should_be_closed_when_request_is_done_ = true;
-    return;
-  }
-
-  // Otherwise, sitll holding the mutex, we can shut everything down ourselves
-  shutdown_ssl(socket_, true);
-  shutdown_socket(socket_);
-  close_socket(socket_);
-}
-
-inline void ClientImpl::set_connection_timeout(time_t sec, time_t usec) {
-  connection_timeout_sec_ = sec;
-  connection_timeout_usec_ = usec;
-}
-
-inline void ClientImpl::set_read_timeout(time_t sec, time_t usec) {
-  read_timeout_sec_ = sec;
-  read_timeout_usec_ = usec;
-}
-
-inline void ClientImpl::set_write_timeout(time_t sec, time_t usec) {
-  write_timeout_sec_ = sec;
-  write_timeout_usec_ = usec;
-}
-
-inline void ClientImpl::set_basic_auth(const char *username,
-                                       const char *password) {
-  basic_auth_username_ = username;
-  basic_auth_password_ = password;
-}
-
-inline void ClientImpl::set_bearer_token_auth(const char *token) {
-  bearer_token_auth_token_ = token;
-}
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-inline void ClientImpl::set_digest_auth(const char *username,
-                                        const char *password) {
-  digest_auth_username_ = username;
-  digest_auth_password_ = password;
-}
-#endif
-
-inline void ClientImpl::set_keep_alive(bool on) { keep_alive_ = on; }
-
-inline void ClientImpl::set_follow_location(bool on) { follow_location_ = on; }
-
-inline void ClientImpl::set_url_encode(bool on) { url_encode_ = on; }
-
-inline void ClientImpl::set_default_headers(Headers headers) {
-  default_headers_ = std::move(headers);
-}
-
-inline void ClientImpl::set_address_family(int family) {
-  address_family_ = family;
-}
-
-inline void ClientImpl::set_tcp_nodelay(bool on) { tcp_nodelay_ = on; }
-
-inline void ClientImpl::set_socket_options(SocketOptions socket_options) {
-  socket_options_ = std::move(socket_options);
-}
-
-inline void ClientImpl::set_compress(bool on) { compress_ = on; }
-
-inline void ClientImpl::set_decompress(bool on) { decompress_ = on; }
-
-inline void ClientImpl::set_interface(const char *intf) { interface_ = intf; }
-
-inline void ClientImpl::set_proxy(const char *host, int port) {
-  proxy_host_ = host;
-  proxy_port_ = port;
-}
-
-inline void ClientImpl::set_proxy_basic_auth(const char *username,
-                                             const char *password) {
-  proxy_basic_auth_username_ = username;
-  proxy_basic_auth_password_ = password;
-}
-
-inline void ClientImpl::set_proxy_bearer_token_auth(const char *token) {
-  proxy_bearer_token_auth_token_ = token;
-}
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-inline void ClientImpl::set_proxy_digest_auth(const char *username,
-                                              const char *password) {
-  proxy_digest_auth_username_ = username;
-  proxy_digest_auth_password_ = password;
-}
-#endif
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-inline void ClientImpl::set_ca_cert_path(const char *ca_cert_file_path,
-                                         const char *ca_cert_dir_path) {
-  if (ca_cert_file_path) { ca_cert_file_path_ = ca_cert_file_path; }
-  if (ca_cert_dir_path) { ca_cert_dir_path_ = ca_cert_dir_path; }
-}
-
-inline void ClientImpl::set_ca_cert_store(X509_STORE *ca_cert_store) {
-  if (ca_cert_store && ca_cert_store != ca_cert_store_) {
-    ca_cert_store_ = ca_cert_store;
-  }
-}
-#endif
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-inline void ClientImpl::enable_server_certificate_verification(bool enabled) {
-  server_certificate_verification_ = enabled;
-}
-#endif
-
-inline void ClientImpl::set_logger(Logger logger) {
-  logger_ = std::move(logger);
-}
-
-/*
- * SSL Implementation
- */
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-namespace detail {
-
-template <typename U, typename V>
-inline SSL *ssl_new(socket_t sock, SSL_CTX *ctx, std::mutex &ctx_mutex,
-                    U SSL_connect_or_accept, V setup) {
-  SSL *ssl = nullptr;
-  {
-    std::lock_guard<std::mutex> guard(ctx_mutex);
-    ssl = SSL_new(ctx);
-  }
-
-  if (ssl) {
-    set_nonblocking(sock, true);
-    auto bio = BIO_new_socket(static_cast<int>(sock), BIO_NOCLOSE);
-    BIO_set_nbio(bio, 1);
-    SSL_set_bio(ssl, bio, bio);
-
-    if (!setup(ssl) || SSL_connect_or_accept(ssl) != 1) {
-      SSL_shutdown(ssl);
-      {
-        std::lock_guard<std::mutex> guard(ctx_mutex);
-        SSL_free(ssl);
-      }
-      set_nonblocking(sock, false);
-      return nullptr;
-    }
-    BIO_set_nbio(bio, 0);
-    set_nonblocking(sock, false);
-  }
-
-  return ssl;
-}
-
-inline void ssl_delete(std::mutex &ctx_mutex, SSL *ssl,
-                       bool shutdown_gracefully) {
-  // sometimes we may want to skip this to try to avoid SIGPIPE if we know
-  // the remote has closed the network connection
-  // Note that it is not always possible to avoid SIGPIPE, this is merely a
-  // best-efforts.
-  if (shutdown_gracefully) { SSL_shutdown(ssl); }
-
-  std::lock_guard<std::mutex> guard(ctx_mutex);
-  SSL_free(ssl);
-}
-
-template <typename U>
-bool ssl_connect_or_accept_nonblocking(socket_t sock, SSL *ssl,
-                                       U ssl_connect_or_accept,
-                                       time_t timeout_sec,
-                                       time_t timeout_usec) {
-  int res = 0;
-  while ((res = ssl_connect_or_accept(ssl)) != 1) {
-    auto err = SSL_get_error(ssl, res);
-    switch (err) {
-    case SSL_ERROR_WANT_READ:
-      if (select_read(sock, timeout_sec, timeout_usec) > 0) { continue; }
-      break;
-    case SSL_ERROR_WANT_WRITE:
-      if (select_write(sock, timeout_sec, timeout_usec) > 0) { continue; }
-      break;
-    default: break;
-    }
-    return false;
-  }
-  return true;
-}
-
-template <typename T>
-inline bool
-process_server_socket_ssl(SSL *ssl, socket_t sock, size_t keep_alive_max_count,
-                          time_t keep_alive_timeout_sec,
-                          time_t read_timeout_sec, time_t read_timeout_usec,
-                          time_t write_timeout_sec, time_t write_timeout_usec,
-                          T callback) {
-  return process_server_socket_core(
-      sock, keep_alive_max_count, keep_alive_timeout_sec,
-      [&](bool close_connection, bool &connection_closed) {
-        SSLSocketStream strm(sock, ssl, read_timeout_sec, read_timeout_usec,
-                             write_timeout_sec, write_timeout_usec);
-        return callback(strm, close_connection, connection_closed);
-      });
-}
-
-template <typename T>
-inline bool
-process_client_socket_ssl(SSL *ssl, socket_t sock, time_t read_timeout_sec,
-                          time_t read_timeout_usec, time_t write_timeout_sec,
-                          time_t write_timeout_usec, T callback) {
-  SSLSocketStream strm(sock, ssl, read_timeout_sec, read_timeout_usec,
-                       write_timeout_sec, write_timeout_usec);
-  return callback(strm);
-}
-
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
-static std::shared_ptr<std::vector<std::mutex>> openSSL_locks_;
-
-class SSLThreadLocks {
-public:
-  SSLThreadLocks() {
-    openSSL_locks_ =
-        std::make_shared<std::vector<std::mutex>>(CRYPTO_num_locks());
-    CRYPTO_set_locking_callback(locking_callback);
-  }
-
-  ~SSLThreadLocks() { CRYPTO_set_locking_callback(nullptr); }
-
-private:
-  static void locking_callback(int mode, int type, const char * /*file*/,
-                               int /*line*/) {
-    auto &lk = (*openSSL_locks_)[static_cast<size_t>(type)];
-    if (mode & CRYPTO_LOCK) {
-      lk.lock();
-    } else {
-      lk.unlock();
-    }
-  }
-};
-
-#endif
-
-class SSLInit {
-public:
-  SSLInit() {
-#if OPENSSL_VERSION_NUMBER < 0x1010001fL
-    SSL_load_error_strings();
-    SSL_library_init();
-#else
-    OPENSSL_init_ssl(
-        OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
-#endif
-  }
-
-  ~SSLInit() {
-#if OPENSSL_VERSION_NUMBER < 0x1010001fL
-    ERR_free_strings();
-#endif
-  }
-
-private:
-#if OPENSSL_VERSION_NUMBER < 0x10100000L
-  SSLThreadLocks thread_init_;
-#endif
-};
-
-// SSL socket stream implementation
-inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL *ssl,
-                                        time_t read_timeout_sec,
-                                        time_t read_timeout_usec,
-                                        time_t write_timeout_sec,
-                                        time_t write_timeout_usec)
-    : sock_(sock), ssl_(ssl), read_timeout_sec_(read_timeout_sec),
-      read_timeout_usec_(read_timeout_usec),
-      write_timeout_sec_(write_timeout_sec),
-      write_timeout_usec_(write_timeout_usec) {
-  SSL_clear_mode(ssl, SSL_MODE_AUTO_RETRY);
-}
-
-inline SSLSocketStream::~SSLSocketStream() {}
-
-inline bool SSLSocketStream::is_readable() const {
-  return detail::select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0;
-}
-
-inline bool SSLSocketStream::is_writable() const {
-  return detail::select_write(sock_, write_timeout_sec_, write_timeout_usec_) >
-         0;
-}
-
-inline ssize_t SSLSocketStream::read(char *ptr, size_t size) {
-  if (SSL_pending(ssl_) > 0) {
-    return SSL_read(ssl_, ptr, static_cast<int>(size));
-  } else if (is_readable()) {
-    auto ret = SSL_read(ssl_, ptr, static_cast<int>(size));
-    if (ret < 0) {
-      auto err = SSL_get_error(ssl_, ret);
-      int n = 1000;
-#ifdef _WIN32
-      while (--n >= 0 &&
-             (err == SSL_ERROR_WANT_READ ||
-              err == SSL_ERROR_SYSCALL && WSAGetLastError() == WSAETIMEDOUT)) {
-#else
-      while (--n >= 0 && err == SSL_ERROR_WANT_READ) {
-#endif
-        if (SSL_pending(ssl_) > 0) {
-          return SSL_read(ssl_, ptr, static_cast<int>(size));
-        } else if (is_readable()) {
-          std::this_thread::sleep_for(std::chrono::milliseconds(1));
-          ret = SSL_read(ssl_, ptr, static_cast<int>(size));
-          if (ret >= 0) { return ret; }
-          err = SSL_get_error(ssl_, ret);
-        } else {
-          return -1;
-        }
-      }
-    }
-    return ret;
-  }
-  return -1;
-}
-
-inline ssize_t SSLSocketStream::write(const char *ptr, size_t size) {
-  if (is_writable()) { return SSL_write(ssl_, ptr, static_cast<int>(size)); }
-  return -1;
-}
-
-inline void SSLSocketStream::get_remote_ip_and_port(std::string &ip,
-                                                    int &port) const {
-  detail::get_remote_ip_and_port(sock_, ip, port);
-}
-
-inline socket_t SSLSocketStream::socket() const { return sock_; }
-
-static SSLInit sslinit_;
-
-} // namespace detail
-
-// SSL HTTP server implementation
-inline SSLServer::SSLServer(const char *cert_path, const char *private_key_path,
-                            const char *client_ca_cert_file_path,
-                            const char *client_ca_cert_dir_path) {
-  ctx_ = SSL_CTX_new(TLS_method());
-
-  if (ctx_) {
-    SSL_CTX_set_options(ctx_,
-                        SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 |
-                            SSL_OP_NO_COMPRESSION |
-                            SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
-
-    // auto ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
-    // SSL_CTX_set_tmp_ecdh(ctx_, ecdh);
-    // EC_KEY_free(ecdh);
-
-    if (SSL_CTX_use_certificate_chain_file(ctx_, cert_path) != 1 ||
-        SSL_CTX_use_PrivateKey_file(ctx_, private_key_path, SSL_FILETYPE_PEM) !=
-            1) {
-      SSL_CTX_free(ctx_);
-      ctx_ = nullptr;
-    } else if (client_ca_cert_file_path || client_ca_cert_dir_path) {
-      // if (client_ca_cert_file_path) {
-      //   auto list = SSL_load_client_CA_file(client_ca_cert_file_path);
-      //   SSL_CTX_set_client_CA_list(ctx_, list);
-      // }
-
-      SSL_CTX_load_verify_locations(ctx_, client_ca_cert_file_path,
-                                    client_ca_cert_dir_path);
-
-      SSL_CTX_set_verify(
-          ctx_,
-          SSL_VERIFY_PEER |
-              SSL_VERIFY_FAIL_IF_NO_PEER_CERT, // SSL_VERIFY_CLIENT_ONCE,
-          nullptr);
-    }
-  }
-}
-
-inline SSLServer::SSLServer(X509 *cert, EVP_PKEY *private_key,
-                            X509_STORE *client_ca_cert_store) {
-  ctx_ = SSL_CTX_new(SSLv23_server_method());
-
-  if (ctx_) {
-    SSL_CTX_set_options(ctx_,
-                        SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 |
-                            SSL_OP_NO_COMPRESSION |
-                            SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
-
-    if (SSL_CTX_use_certificate(ctx_, cert) != 1 ||
-        SSL_CTX_use_PrivateKey(ctx_, private_key) != 1) {
-      SSL_CTX_free(ctx_);
-      ctx_ = nullptr;
-    } else if (client_ca_cert_store) {
-
-      SSL_CTX_set_cert_store(ctx_, client_ca_cert_store);
-
-      SSL_CTX_set_verify(
-          ctx_,
-          SSL_VERIFY_PEER |
-              SSL_VERIFY_FAIL_IF_NO_PEER_CERT, // SSL_VERIFY_CLIENT_ONCE,
-          nullptr);
-    }
-  }
-}
-
-inline SSLServer::~SSLServer() {
-  if (ctx_) { SSL_CTX_free(ctx_); }
-}
-
-inline bool SSLServer::is_valid() const { return ctx_; }
-
-inline bool SSLServer::process_and_close_socket(socket_t sock) {
-  auto ssl = detail::ssl_new(
-      sock, ctx_, ctx_mutex_,
-      [&](SSL *ssl) {
-        return detail::ssl_connect_or_accept_nonblocking(
-            sock, ssl, SSL_accept, read_timeout_sec_, read_timeout_usec_);
-      },
-      [](SSL * /*ssl*/) { return true; });
-
-  bool ret = false;
-  if (ssl) {
-    ret = detail::process_server_socket_ssl(
-        ssl, sock, keep_alive_max_count_, keep_alive_timeout_sec_,
-        read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,
-        write_timeout_usec_,
-        [this, ssl](Stream &strm, bool close_connection,
-                    bool &connection_closed) {
-          return process_request(strm, close_connection, connection_closed,
-                                 [&](Request &req) { req.ssl = ssl; });
-        });
-
-    // Shutdown gracefully if the result seemed successful, non-gracefully if
-    // the connection appeared to be closed.
-    const bool shutdown_gracefully = ret;
-    detail::ssl_delete(ctx_mutex_, ssl, shutdown_gracefully);
-  }
-
-  detail::shutdown_socket(sock);
-  detail::close_socket(sock);
-  return ret;
-}
-
-// SSL HTTP client implementation
-inline SSLClient::SSLClient(const std::string &host)
-    : SSLClient(host, 443, std::string(), std::string()) {}
-
-inline SSLClient::SSLClient(const std::string &host, int port)
-    : SSLClient(host, port, std::string(), std::string()) {}
-
-inline SSLClient::SSLClient(const std::string &host, int port,
-                            const std::string &client_cert_path,
-                            const std::string &client_key_path)
-    : ClientImpl(host, port, client_cert_path, client_key_path) {
-  ctx_ = SSL_CTX_new(SSLv23_client_method());
-
-  detail::split(&host_[0], &host_[host_.size()], '.',
-                [&](const char *b, const char *e) {
-                  host_components_.emplace_back(std::string(b, e));
-                });
-  if (!client_cert_path.empty() && !client_key_path.empty()) {
-    if (SSL_CTX_use_certificate_file(ctx_, client_cert_path.c_str(),
-                                     SSL_FILETYPE_PEM) != 1 ||
-        SSL_CTX_use_PrivateKey_file(ctx_, client_key_path.c_str(),
-                                    SSL_FILETYPE_PEM) != 1) {
-      SSL_CTX_free(ctx_);
-      ctx_ = nullptr;
-    }
-  }
-}
-
-inline SSLClient::SSLClient(const std::string &host, int port,
-                            X509 *client_cert, EVP_PKEY *client_key)
-    : ClientImpl(host, port) {
-  ctx_ = SSL_CTX_new(SSLv23_client_method());
-
-  detail::split(&host_[0], &host_[host_.size()], '.',
-                [&](const char *b, const char *e) {
-                  host_components_.emplace_back(std::string(b, e));
-                });
-  if (client_cert != nullptr && client_key != nullptr) {
-    if (SSL_CTX_use_certificate(ctx_, client_cert) != 1 ||
-        SSL_CTX_use_PrivateKey(ctx_, client_key) != 1) {
-      SSL_CTX_free(ctx_);
-      ctx_ = nullptr;
-    }
-  }
-}
-
-inline SSLClient::~SSLClient() {
-  if (ctx_) { SSL_CTX_free(ctx_); }
-  // Make sure to shut down SSL since shutdown_ssl will resolve to the
-  // base function rather than the derived function once we get to the
-  // base class destructor, and won't free the SSL (causing a leak).
-  shutdown_ssl_impl(socket_, true);
-}
-
-inline bool SSLClient::is_valid() const { return ctx_; }
-
-inline void SSLClient::set_ca_cert_store(X509_STORE *ca_cert_store) {
-  if (ca_cert_store) {
-    if (ctx_) {
-      if (SSL_CTX_get_cert_store(ctx_) != ca_cert_store) {
-        // Free memory allocated for old cert and use new store `ca_cert_store`
-        SSL_CTX_set_cert_store(ctx_, ca_cert_store);
-      }
-    } else {
-      X509_STORE_free(ca_cert_store);
-    }
-  }
-}
-
-inline long SSLClient::get_openssl_verify_result() const {
-  return verify_result_;
-}
-
-inline SSL_CTX *SSLClient::ssl_context() const { return ctx_; }
-
-inline bool SSLClient::create_and_connect_socket(Socket &socket, Error &error) {
-  return is_valid() && ClientImpl::create_and_connect_socket(socket, error);
-}
-
-// Assumes that socket_mutex_ is locked and that there are no requests in flight
-inline bool SSLClient::connect_with_proxy(Socket &socket, Response &res,
-                                          bool &success, Error &error) {
-  success = true;
-  Response res2;
-  if (!detail::process_client_socket(
-          socket.sock, read_timeout_sec_, read_timeout_usec_,
-          write_timeout_sec_, write_timeout_usec_, [&](Stream &strm) {
-            Request req2;
-            req2.method = "CONNECT";
-            req2.path = host_and_port_;
-            return process_request(strm, req2, res2, false, error);
-          })) {
-    // Thread-safe to close everything because we are assuming there are no
-    // requests in flight
-    shutdown_ssl(socket, true);
-    shutdown_socket(socket);
-    close_socket(socket);
-    success = false;
-    return false;
-  }
-
-  if (res2.status == 407) {
-    if (!proxy_digest_auth_username_.empty() &&
-        !proxy_digest_auth_password_.empty()) {
-      std::map<std::string, std::string> auth;
-      if (detail::parse_www_authenticate(res2, auth, true)) {
-        Response res3;
-        if (!detail::process_client_socket(
-                socket.sock, read_timeout_sec_, read_timeout_usec_,
-                write_timeout_sec_, write_timeout_usec_, [&](Stream &strm) {
-                  Request req3;
-                  req3.method = "CONNECT";
-                  req3.path = host_and_port_;
-                  req3.headers.insert(detail::make_digest_authentication_header(
-                      req3, auth, 1, detail::random_string(10),
-                      proxy_digest_auth_username_, proxy_digest_auth_password_,
-                      true));
-                  return process_request(strm, req3, res3, false, error);
-                })) {
-          // Thread-safe to close everything because we are assuming there are
-          // no requests in flight
-          shutdown_ssl(socket, true);
-          shutdown_socket(socket);
-          close_socket(socket);
-          success = false;
-          return false;
-        }
-      }
-    } else {
-      res = res2;
-      return false;
-    }
-  }
-
-  return true;
-}
-
-inline bool SSLClient::load_certs() {
-  bool ret = true;
-
-  std::call_once(initialize_cert_, [&]() {
-    std::lock_guard<std::mutex> guard(ctx_mutex_);
-    if (!ca_cert_file_path_.empty()) {
-      if (!SSL_CTX_load_verify_locations(ctx_, ca_cert_file_path_.c_str(),
-                                         nullptr)) {
-        ret = false;
-      }
-    } else if (!ca_cert_dir_path_.empty()) {
-      if (!SSL_CTX_load_verify_locations(ctx_, nullptr,
-                                         ca_cert_dir_path_.c_str())) {
-        ret = false;
-      }
-    } else {
-#ifdef _WIN32
-      detail::load_system_certs_on_windows(SSL_CTX_get_cert_store(ctx_));
-#else
-      SSL_CTX_set_default_verify_paths(ctx_);
-#endif
-    }
-  });
-
-  return ret;
-}
-
-inline bool SSLClient::initialize_ssl(Socket &socket, Error &error) {
-  auto ssl = detail::ssl_new(
-      socket.sock, ctx_, ctx_mutex_,
-      [&](SSL *ssl) {
-        if (server_certificate_verification_) {
-          if (!load_certs()) {
-            error = Error::SSLLoadingCerts;
-            return false;
-          }
-          SSL_set_verify(ssl, SSL_VERIFY_NONE, nullptr);
-        }
-
-        if (!detail::ssl_connect_or_accept_nonblocking(
-                socket.sock, ssl, SSL_connect, connection_timeout_sec_,
-                connection_timeout_usec_)) {
-          error = Error::SSLConnection;
-          return false;
-        }
-
-        if (server_certificate_verification_) {
-          verify_result_ = SSL_get_verify_result(ssl);
-
-          if (verify_result_ != X509_V_OK) {
-            error = Error::SSLServerVerification;
-            return false;
-          }
-
-          auto server_cert = SSL_get_peer_certificate(ssl);
-
-          if (server_cert == nullptr) {
-            error = Error::SSLServerVerification;
-            return false;
-          }
-
-          if (!verify_host(server_cert)) {
-            X509_free(server_cert);
-            error = Error::SSLServerVerification;
-            return false;
-          }
-          X509_free(server_cert);
-        }
-
-        return true;
-      },
-      [&](SSL *ssl) {
-        SSL_set_tlsext_host_name(ssl, host_.c_str());
-        return true;
-      });
-
-  if (ssl) {
-    socket.ssl = ssl;
-    return true;
-  }
-
-  shutdown_socket(socket);
-  close_socket(socket);
-  return false;
-}
-
-inline void SSLClient::shutdown_ssl(Socket &socket, bool shutdown_gracefully) {
-  shutdown_ssl_impl(socket, shutdown_gracefully);
-}
-
-inline void SSLClient::shutdown_ssl_impl(Socket &socket,
-                                         bool shutdown_gracefully) {
-  if (socket.sock == INVALID_SOCKET) {
-    assert(socket.ssl == nullptr);
-    return;
-  }
-  if (socket.ssl) {
-    detail::ssl_delete(ctx_mutex_, socket.ssl, shutdown_gracefully);
-    socket.ssl = nullptr;
-  }
-  assert(socket.ssl == nullptr);
-}
-
-inline bool
-SSLClient::process_socket(const Socket &socket,
-                          std::function<bool(Stream &strm)> callback) {
-  assert(socket.ssl);
-  return detail::process_client_socket_ssl(
-      socket.ssl, socket.sock, read_timeout_sec_, read_timeout_usec_,
-      write_timeout_sec_, write_timeout_usec_, std::move(callback));
-}
-
-inline bool SSLClient::is_ssl() const { return true; }
-
-inline bool SSLClient::verify_host(X509 *server_cert) const {
-  /* Quote from RFC2818 section 3.1 "Server Identity"
-
-     If a subjectAltName extension of type dNSName is present, that MUST
-     be used as the identity. Otherwise, the (most specific) Common Name
-     field in the Subject field of the certificate MUST be used. Although
-     the use of the Common Name is existing practice, it is deprecated and
-     Certification Authorities are encouraged to use the dNSName instead.
-
-     Matching is performed using the matching rules specified by
-     [RFC2459].  If more than one identity of a given type is present in
-     the certificate (e.g., more than one dNSName name, a match in any one
-     of the set is considered acceptable.) Names may contain the wildcard
-     character * which is considered to match any single domain name
-     component or component fragment. E.g., *.a.com matches foo.a.com but
-     not bar.foo.a.com. f*.com matches foo.com but not bar.com.
-
-     In some cases, the URI is specified as an IP address rather than a
-     hostname. In this case, the iPAddress subjectAltName must be present
-     in the certificate and must exactly match the IP in the URI.
-
-  */
-  return verify_host_with_subject_alt_name(server_cert) ||
-         verify_host_with_common_name(server_cert);
-}
-
-inline bool
-SSLClient::verify_host_with_subject_alt_name(X509 *server_cert) const {
-  auto ret = false;
-
-  auto type = GEN_DNS;
-
-  struct in6_addr addr6;
-  struct in_addr addr;
-  size_t addr_len = 0;
-
-#ifndef __MINGW32__
-  if (inet_pton(AF_INET6, host_.c_str(), &addr6)) {
-    type = GEN_IPADD;
-    addr_len = sizeof(struct in6_addr);
-  } else if (inet_pton(AF_INET, host_.c_str(), &addr)) {
-    type = GEN_IPADD;
-    addr_len = sizeof(struct in_addr);
-  }
-#endif
-
-  auto alt_names = static_cast<const struct stack_st_GENERAL_NAME *>(
-      X509_get_ext_d2i(server_cert, NID_subject_alt_name, nullptr, nullptr));
-
-  if (alt_names) {
-    auto dsn_matched = false;
-    auto ip_mached = false;
-
-    auto count = sk_GENERAL_NAME_num(alt_names);
-
-    for (decltype(count) i = 0; i < count && !dsn_matched; i++) {
-      auto val = sk_GENERAL_NAME_value(alt_names, i);
-      if (val->type == type) {
-        auto name = (const char *)ASN1_STRING_get0_data(val->d.ia5);
-        auto name_len = (size_t)ASN1_STRING_length(val->d.ia5);
-
-        switch (type) {
-        case GEN_DNS: dsn_matched = check_host_name(name, name_len); break;
-
-        case GEN_IPADD:
-          if (!memcmp(&addr6, name, addr_len) ||
-              !memcmp(&addr, name, addr_len)) {
-            ip_mached = true;
-          }
-          break;
-        }
-      }
-    }
-
-    if (dsn_matched || ip_mached) { ret = true; }
-  }
-
-  GENERAL_NAMES_free((STACK_OF(GENERAL_NAME) *)alt_names);
-  return ret;
-}
-
-inline bool SSLClient::verify_host_with_common_name(X509 *server_cert) const {
-  const auto subject_name = X509_get_subject_name(server_cert);
-
-  if (subject_name != nullptr) {
-    char name[BUFSIZ];
-    auto name_len = X509_NAME_get_text_by_NID(subject_name, NID_commonName,
-                                              name, sizeof(name));
-
-    if (name_len != -1) {
-      return check_host_name(name, static_cast<size_t>(name_len));
-    }
-  }
-
-  return false;
-}
-
-inline bool SSLClient::check_host_name(const char *pattern,
-                                       size_t pattern_len) const {
-  if (host_.size() == pattern_len && host_ == pattern) { return true; }
-
-  // Wildcard match
-  // https://bugs.launchpad.net/ubuntu/+source/firefox-3.0/+bug/376484
-  std::vector<std::string> pattern_components;
-  detail::split(&pattern[0], &pattern[pattern_len], '.',
-                [&](const char *b, const char *e) {
-                  pattern_components.emplace_back(std::string(b, e));
-                });
-
-  if (host_components_.size() != pattern_components.size()) { return false; }
-
-  auto itr = pattern_components.begin();
-  for (const auto &h : host_components_) {
-    auto &p = *itr;
-    if (p != h && p != "*") {
-      auto partial_match = (p.size() > 0 && p[p.size() - 1] == '*' &&
-                            !p.compare(0, p.size() - 1, h));
-      if (!partial_match) { return false; }
-    }
-    ++itr;
-  }
-
-  return true;
-}
-#endif
-
-// Universal client implementation
-inline Client::Client(const std::string &scheme_host_port)
-    : Client(scheme_host_port, std::string(), std::string()) {}
-
-inline Client::Client(const std::string &scheme_host_port,
-                      const std::string &client_cert_path,
-                      const std::string &client_key_path) {
-  const static std::regex re(
-      R"((?:([a-z]+):\/\/)?(?:\[([\d:]+)\]|([^:/?#]+))(?::(\d+))?)");
-
-  std::smatch m;
-  if (std::regex_match(scheme_host_port, m, re)) {
-    auto scheme = m[1].str();
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-    if (!scheme.empty() && (scheme != "http" && scheme != "https")) {
-#else
-    if (!scheme.empty() && scheme != "http") {
-#endif
-      std::string msg = "'" + scheme + "' scheme is not supported.";
-      throw std::invalid_argument(msg);
-      return;
-    }
-
-    auto is_ssl = scheme == "https";
-
-    auto host = m[2].str();
-    if (host.empty()) { host = m[3].str(); }
-
-    auto port_str = m[4].str();
-    auto port = !port_str.empty() ? std::stoi(port_str) : (is_ssl ? 443 : 80);
-
-    if (is_ssl) {
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-      cli_ = detail::make_unique<SSLClient>(host.c_str(), port,
-                                            client_cert_path, client_key_path);
-      is_ssl_ = is_ssl;
-#endif
-    } else {
-      cli_ = detail::make_unique<ClientImpl>(host.c_str(), port,
-                                             client_cert_path, client_key_path);
-    }
-  } else {
-    cli_ = detail::make_unique<ClientImpl>(scheme_host_port, 80,
-                                           client_cert_path, client_key_path);
-  }
-}
-
-inline Client::Client(const std::string &host, int port)
-    : cli_(detail::make_unique<ClientImpl>(host, port)) {}
-
-inline Client::Client(const std::string &host, int port,
-                      const std::string &client_cert_path,
-                      const std::string &client_key_path)
-    : cli_(detail::make_unique<ClientImpl>(host, port, client_cert_path,
-                                           client_key_path)) {}
-
-inline Client::~Client() {}
-
-inline bool Client::is_valid() const {
-  return cli_ != nullptr && cli_->is_valid();
-}
-
-inline Result Client::Get(const char *path) { return cli_->Get(path); }
-inline Result Client::Get(const char *path, const Headers &headers) {
-  return cli_->Get(path, headers);
-}
-inline Result Client::Get(const char *path, Progress progress) {
-  return cli_->Get(path, std::move(progress));
-}
-inline Result Client::Get(const char *path, const Headers &headers,
-                          Progress progress) {
-  return cli_->Get(path, headers, std::move(progress));
-}
-inline Result Client::Get(const char *path, ContentReceiver content_receiver) {
-  return cli_->Get(path, std::move(content_receiver));
-}
-inline Result Client::Get(const char *path, const Headers &headers,
-                          ContentReceiver content_receiver) {
-  return cli_->Get(path, headers, std::move(content_receiver));
-}
-inline Result Client::Get(const char *path, ContentReceiver content_receiver,
-                          Progress progress) {
-  return cli_->Get(path, std::move(content_receiver), std::move(progress));
-}
-inline Result Client::Get(const char *path, const Headers &headers,
-                          ContentReceiver content_receiver, Progress progress) {
-  return cli_->Get(path, headers, std::move(content_receiver),
-                   std::move(progress));
-}
-inline Result Client::Get(const char *path, ResponseHandler response_handler,
-                          ContentReceiver content_receiver) {
-  return cli_->Get(path, std::move(response_handler),
-                   std::move(content_receiver));
-}
-inline Result Client::Get(const char *path, const Headers &headers,
-                          ResponseHandler response_handler,
-                          ContentReceiver content_receiver) {
-  return cli_->Get(path, headers, std::move(response_handler),
-                   std::move(content_receiver));
-}
-inline Result Client::Get(const char *path, ResponseHandler response_handler,
-                          ContentReceiver content_receiver, Progress progress) {
-  return cli_->Get(path, std::move(response_handler),
-                   std::move(content_receiver), std::move(progress));
-}
-inline Result Client::Get(const char *path, const Headers &headers,
-                          ResponseHandler response_handler,
-                          ContentReceiver content_receiver, Progress progress) {
-  return cli_->Get(path, headers, std::move(response_handler),
-                   std::move(content_receiver), std::move(progress));
-}
-inline Result Client::Get(const char *path, const Params &params,
-                          const Headers &headers, Progress progress) {
-  return cli_->Get(path, params, headers, progress);
-}
-inline Result Client::Get(const char *path, const Params &params,
-                          const Headers &headers,
-                          ContentReceiver content_receiver, Progress progress) {
-  return cli_->Get(path, params, headers, content_receiver, progress);
-}
-inline Result Client::Get(const char *path, const Params &params,
-                          const Headers &headers,
-                          ResponseHandler response_handler,
-                          ContentReceiver content_receiver, Progress progress) {
-  return cli_->Get(path, params, headers, response_handler, content_receiver,
-                   progress);
-}
-
-inline Result Client::Head(const char *path) { return cli_->Head(path); }
-inline Result Client::Head(const char *path, const Headers &headers) {
-  return cli_->Head(path, headers);
-}
-
-inline Result Client::Post(const char *path) { return cli_->Post(path); }
-inline Result Client::Post(const char *path, const char *body,
-                           size_t content_length, const char *content_type) {
-  return cli_->Post(path, body, content_length, content_type);
-}
-inline Result Client::Post(const char *path, const Headers &headers,
-                           const char *body, size_t content_length,
-                           const char *content_type) {
-  return cli_->Post(path, headers, body, content_length, content_type);
-}
-inline Result Client::Post(const char *path, const std::string &body,
-                           const char *content_type) {
-  return cli_->Post(path, body, content_type);
-}
-inline Result Client::Post(const char *path, const Headers &headers,
-                           const std::string &body, const char *content_type) {
-  return cli_->Post(path, headers, body, content_type);
-}
-inline Result Client::Post(const char *path, size_t content_length,
-                           ContentProvider content_provider,
-                           const char *content_type) {
-  return cli_->Post(path, content_length, std::move(content_provider),
-                    content_type);
-}
-inline Result Client::Post(const char *path,
-                           ContentProviderWithoutLength content_provider,
-                           const char *content_type) {
-  return cli_->Post(path, std::move(content_provider), content_type);
-}
-inline Result Client::Post(const char *path, const Headers &headers,
-                           size_t content_length,
-                           ContentProvider content_provider,
-                           const char *content_type) {
-  return cli_->Post(path, headers, content_length, std::move(content_provider),
-                    content_type);
-}
-inline Result Client::Post(const char *path, const Headers &headers,
-                           ContentProviderWithoutLength content_provider,
-                           const char *content_type) {
-  return cli_->Post(path, headers, std::move(content_provider), content_type);
-}
-inline Result Client::Post(const char *path, const Params &params) {
-  return cli_->Post(path, params);
-}
-inline Result Client::Post(const char *path, const Headers &headers,
-                           const Params &params) {
-  return cli_->Post(path, headers, params);
-}
-inline Result Client::Post(const char *path,
-                           const MultipartFormDataItems &items) {
-  return cli_->Post(path, items);
-}
-inline Result Client::Post(const char *path, const Headers &headers,
-                           const MultipartFormDataItems &items) {
-  return cli_->Post(path, headers, items);
-}
-inline Result Client::Post(const char *path, const Headers &headers,
-                           const MultipartFormDataItems &items,
-                           const std::string &boundary) {
-  return cli_->Post(path, headers, items, boundary);
-}
-inline Result Client::Put(const char *path) { return cli_->Put(path); }
-inline Result Client::Put(const char *path, const char *body,
-                          size_t content_length, const char *content_type) {
-  return cli_->Put(path, body, content_length, content_type);
-}
-inline Result Client::Put(const char *path, const Headers &headers,
-                          const char *body, size_t content_length,
-                          const char *content_type) {
-  return cli_->Put(path, headers, body, content_length, content_type);
-}
-inline Result Client::Put(const char *path, const std::string &body,
-                          const char *content_type) {
-  return cli_->Put(path, body, content_type);
-}
-inline Result Client::Put(const char *path, const Headers &headers,
-                          const std::string &body, const char *content_type) {
-  return cli_->Put(path, headers, body, content_type);
-}
-inline Result Client::Put(const char *path, size_t content_length,
-                          ContentProvider content_provider,
-                          const char *content_type) {
-  return cli_->Put(path, content_length, std::move(content_provider),
-                   content_type);
-}
-inline Result Client::Put(const char *path,
-                          ContentProviderWithoutLength content_provider,
-                          const char *content_type) {
-  return cli_->Put(path, std::move(content_provider), content_type);
-}
-inline Result Client::Put(const char *path, const Headers &headers,
-                          size_t content_length,
-                          ContentProvider content_provider,
-                          const char *content_type) {
-  return cli_->Put(path, headers, content_length, std::move(content_provider),
-                   content_type);
-}
-inline Result Client::Put(const char *path, const Headers &headers,
-                          ContentProviderWithoutLength content_provider,
-                          const char *content_type) {
-  return cli_->Put(path, headers, std::move(content_provider), content_type);
-}
-inline Result Client::Put(const char *path, const Params &params) {
-  return cli_->Put(path, params);
-}
-inline Result Client::Put(const char *path, const Headers &headers,
-                          const Params &params) {
-  return cli_->Put(path, headers, params);
-}
-inline Result Client::Patch(const char *path) { return cli_->Patch(path); }
-inline Result Client::Patch(const char *path, const char *body,
-                            size_t content_length, const char *content_type) {
-  return cli_->Patch(path, body, content_length, content_type);
-}
-inline Result Client::Patch(const char *path, const Headers &headers,
-                            const char *body, size_t content_length,
-                            const char *content_type) {
-  return cli_->Patch(path, headers, body, content_length, content_type);
-}
-inline Result Client::Patch(const char *path, const std::string &body,
-                            const char *content_type) {
-  return cli_->Patch(path, body, content_type);
-}
-inline Result Client::Patch(const char *path, const Headers &headers,
-                            const std::string &body, const char *content_type) {
-  return cli_->Patch(path, headers, body, content_type);
-}
-inline Result Client::Patch(const char *path, size_t content_length,
-                            ContentProvider content_provider,
-                            const char *content_type) {
-  return cli_->Patch(path, content_length, std::move(content_provider),
-                     content_type);
-}
-inline Result Client::Patch(const char *path,
-                            ContentProviderWithoutLength content_provider,
-                            const char *content_type) {
-  return cli_->Patch(path, std::move(content_provider), content_type);
-}
-inline Result Client::Patch(const char *path, const Headers &headers,
-                            size_t content_length,
-                            ContentProvider content_provider,
-                            const char *content_type) {
-  return cli_->Patch(path, headers, content_length, std::move(content_provider),
-                     content_type);
-}
-inline Result Client::Patch(const char *path, const Headers &headers,
-                            ContentProviderWithoutLength content_provider,
-                            const char *content_type) {
-  return cli_->Patch(path, headers, std::move(content_provider), content_type);
-}
-inline Result Client::Delete(const char *path) { return cli_->Delete(path); }
-inline Result Client::Delete(const char *path, const Headers &headers) {
-  return cli_->Delete(path, headers);
-}
-inline Result Client::Delete(const char *path, const char *body,
-                             size_t content_length, const char *content_type) {
-  return cli_->Delete(path, body, content_length, content_type);
-}
-inline Result Client::Delete(const char *path, const Headers &headers,
-                             const char *body, size_t content_length,
-                             const char *content_type) {
-  return cli_->Delete(path, headers, body, content_length, content_type);
-}
-inline Result Client::Delete(const char *path, const std::string &body,
-                             const char *content_type) {
-  return cli_->Delete(path, body, content_type);
-}
-inline Result Client::Delete(const char *path, const Headers &headers,
-                             const std::string &body,
-                             const char *content_type) {
-  return cli_->Delete(path, headers, body, content_type);
-}
-inline Result Client::Options(const char *path) { return cli_->Options(path); }
-inline Result Client::Options(const char *path, const Headers &headers) {
-  return cli_->Options(path, headers);
-}
-
-inline bool Client::send(Request &req, Response &res, Error &error) {
-  return cli_->send(req, res, error);
-}
-
-inline Result Client::send(const Request &req) { return cli_->send(req); }
-
-inline size_t Client::is_socket_open() const { return cli_->is_socket_open(); }
-
-inline void Client::stop() { cli_->stop(); }
-
-inline void Client::set_default_headers(Headers headers) {
-  cli_->set_default_headers(std::move(headers));
-}
-
-inline void Client::set_address_family(int family) {
-  cli_->set_address_family(family);
-}
-
-inline void Client::set_tcp_nodelay(bool on) { cli_->set_tcp_nodelay(on); }
-
-inline void Client::set_socket_options(SocketOptions socket_options) {
-  cli_->set_socket_options(std::move(socket_options));
-}
-
-inline void Client::set_connection_timeout(time_t sec, time_t usec) {
-  cli_->set_connection_timeout(sec, usec);
-}
-
-inline void Client::set_read_timeout(time_t sec, time_t usec) {
-  cli_->set_read_timeout(sec, usec);
-}
-
-inline void Client::set_write_timeout(time_t sec, time_t usec) {
-  cli_->set_write_timeout(sec, usec);
-}
-
-inline void Client::set_basic_auth(const char *username, const char *password) {
-  cli_->set_basic_auth(username, password);
-}
-inline void Client::set_bearer_token_auth(const char *token) {
-  cli_->set_bearer_token_auth(token);
-}
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-inline void Client::set_digest_auth(const char *username,
-                                    const char *password) {
-  cli_->set_digest_auth(username, password);
-}
-#endif
-
-inline void Client::set_keep_alive(bool on) { cli_->set_keep_alive(on); }
-inline void Client::set_follow_location(bool on) {
-  cli_->set_follow_location(on);
-}
-
-inline void Client::set_url_encode(bool on) { cli_->set_url_encode(on); }
-
-inline void Client::set_compress(bool on) { cli_->set_compress(on); }
-
-inline void Client::set_decompress(bool on) { cli_->set_decompress(on); }
-
-inline void Client::set_interface(const char *intf) {
-  cli_->set_interface(intf);
-}
-
-inline void Client::set_proxy(const char *host, int port) {
-  cli_->set_proxy(host, port);
-}
-inline void Client::set_proxy_basic_auth(const char *username,
-                                         const char *password) {
-  cli_->set_proxy_basic_auth(username, password);
-}
-inline void Client::set_proxy_bearer_token_auth(const char *token) {
-  cli_->set_proxy_bearer_token_auth(token);
-}
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-inline void Client::set_proxy_digest_auth(const char *username,
-                                          const char *password) {
-  cli_->set_proxy_digest_auth(username, password);
-}
-#endif
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-inline void Client::enable_server_certificate_verification(bool enabled) {
-  cli_->enable_server_certificate_verification(enabled);
-}
-#endif
-
-inline void Client::set_logger(Logger logger) { cli_->set_logger(logger); }
-
-#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
-inline void Client::set_ca_cert_path(const char *ca_cert_file_path,
-                                     const char *ca_cert_dir_path) {
-  cli_->set_ca_cert_path(ca_cert_file_path, ca_cert_dir_path);
-}
-
-inline void Client::set_ca_cert_store(X509_STORE *ca_cert_store) {
-  if (is_ssl_) {
-    static_cast<SSLClient &>(*cli_).set_ca_cert_store(ca_cert_store);
-  } else {
-    cli_->set_ca_cert_store(ca_cert_store);
-  }
-}
-
-inline long Client::get_openssl_verify_result() const {
-  if (is_ssl_) {
-    return static_cast<SSLClient &>(*cli_).get_openssl_verify_result();
-  }
-  return -1; // NOTE: -1 doesn't match any of X509_V_ERR_???
-}
-
-inline SSL_CTX *Client::ssl_context() const {
-  if (is_ssl_) { return static_cast<SSLClient &>(*cli_).ssl_context(); }
-  return nullptr;
-}
-#endif
-
-// ----------------------------------------------------------------------------
-
-} // namespace httplib
-
-#endif // CPPHTTPLIB_HTTPLIB_H
+//

+//  httplib.h

+//

+//  Copyright (c) 2021 Yuji Hirose. All rights reserved.

+//  MIT License

+//

+

+#ifndef CPPHTTPLIB_HTTPLIB_H

+#define CPPHTTPLIB_HTTPLIB_H

+

+/*

+ * Configuration

+ */

+

+#ifndef CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND

+#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5

+#endif

+

+#ifndef CPPHTTPLIB_KEEPALIVE_MAX_COUNT

+#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5

+#endif

+

+#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND

+#define CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND 300

+#endif

+

+#ifndef CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND

+#define CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND 0

+#endif

+

+#ifndef CPPHTTPLIB_READ_TIMEOUT_SECOND

+#define CPPHTTPLIB_READ_TIMEOUT_SECOND 5

+#endif

+

+#ifndef CPPHTTPLIB_READ_TIMEOUT_USECOND

+#define CPPHTTPLIB_READ_TIMEOUT_USECOND 0

+#endif

+

+#ifndef CPPHTTPLIB_WRITE_TIMEOUT_SECOND

+#define CPPHTTPLIB_WRITE_TIMEOUT_SECOND 5

+#endif

+

+#ifndef CPPHTTPLIB_WRITE_TIMEOUT_USECOND

+#define CPPHTTPLIB_WRITE_TIMEOUT_USECOND 0

+#endif

+

+#ifndef CPPHTTPLIB_IDLE_INTERVAL_SECOND

+#define CPPHTTPLIB_IDLE_INTERVAL_SECOND 0

+#endif

+

+#ifndef CPPHTTPLIB_IDLE_INTERVAL_USECOND

+#ifdef _WIN32

+#define CPPHTTPLIB_IDLE_INTERVAL_USECOND 10000

+#else

+#define CPPHTTPLIB_IDLE_INTERVAL_USECOND 0

+#endif

+#endif

+

+#ifndef CPPHTTPLIB_REQUEST_URI_MAX_LENGTH

+#define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 8192

+#endif

+

+#ifndef CPPHTTPLIB_REDIRECT_MAX_COUNT

+#define CPPHTTPLIB_REDIRECT_MAX_COUNT 20

+#endif

+

+#ifndef CPPHTTPLIB_PAYLOAD_MAX_LENGTH

+#define CPPHTTPLIB_PAYLOAD_MAX_LENGTH ((std::numeric_limits<size_t>::max)())

+#endif

+

+#ifndef CPPHTTPLIB_TCP_NODELAY

+#define CPPHTTPLIB_TCP_NODELAY false

+#endif

+

+#ifndef CPPHTTPLIB_RECV_BUFSIZ

+#define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u)

+#endif

+

+#ifndef CPPHTTPLIB_COMPRESSION_BUFSIZ

+#define CPPHTTPLIB_COMPRESSION_BUFSIZ size_t(16384u)

+#endif

+

+#ifndef CPPHTTPLIB_THREAD_POOL_COUNT

+#define CPPHTTPLIB_THREAD_POOL_COUNT                                           \

+  ((std::max)(8u, std::thread::hardware_concurrency() > 0                      \

+                      ? std::thread::hardware_concurrency() - 1                \

+                      : 0))

+#endif

+

+#ifndef CPPHTTPLIB_RECV_FLAGS

+#define CPPHTTPLIB_RECV_FLAGS 0

+#endif

+

+#ifndef CPPHTTPLIB_SEND_FLAGS

+#define CPPHTTPLIB_SEND_FLAGS 0

+#endif

+

+/*

+ * Headers

+ */

+

+#ifdef _WIN32

+#ifndef _CRT_SECURE_NO_WARNINGS

+#define _CRT_SECURE_NO_WARNINGS

+#endif //_CRT_SECURE_NO_WARNINGS

+

+#ifndef _CRT_NONSTDC_NO_DEPRECATE

+#define _CRT_NONSTDC_NO_DEPRECATE

+#endif //_CRT_NONSTDC_NO_DEPRECATE

+

+#if defined(_MSC_VER)

+#ifdef _WIN64

+using ssize_t = __int64;

+#else

+using ssize_t = int;

+#endif

+

+#if _MSC_VER < 1900

+#define snprintf _snprintf_s

+#endif

+#endif // _MSC_VER

+

+#ifndef S_ISREG

+#define S_ISREG(m) (((m)&S_IFREG) == S_IFREG)

+#endif // S_ISREG

+

+#ifndef S_ISDIR

+#define S_ISDIR(m) (((m)&S_IFDIR) == S_IFDIR)

+#endif // S_ISDIR

+

+#ifndef NOMINMAX

+#define NOMINMAX

+#endif // NOMINMAX

+

+#include <io.h>

+#include <winsock2.h>

+

+#include <wincrypt.h>

+#include <ws2tcpip.h>

+

+#ifndef WSA_FLAG_NO_HANDLE_INHERIT

+#define WSA_FLAG_NO_HANDLE_INHERIT 0x80

+#endif

+

+#ifdef _MSC_VER

+#pragma comment(lib, "ws2_32.lib")

+#pragma comment(lib, "crypt32.lib")

+#pragma comment(lib, "cryptui.lib")

+#endif

+

+#ifndef strcasecmp

+#define strcasecmp _stricmp

+#endif // strcasecmp

+

+using socket_t = SOCKET;

+#ifdef CPPHTTPLIB_USE_POLL

+#define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout)

+#endif

+

+#else // not _WIN32

+

+#include <arpa/inet.h>

+#include <cstring>

+#include <ifaddrs.h>

+#include <netdb.h>

+#include <netinet/in.h>

+#ifdef __linux__

+#include <resolv.h>

+#endif

+#include <netinet/tcp.h>

+#ifdef CPPHTTPLIB_USE_POLL

+#include <poll.h>

+#endif

+#include <csignal>

+#include <pthread.h>

+#include <sys/select.h>

+#include <sys/socket.h>

+#include <unistd.h>

+

+using socket_t = int;

+#define INVALID_SOCKET (-1)

+#endif //_WIN32

+

+#include <algorithm>

+#include <array>

+#include <atomic>

+#include <cassert>

+#include <cctype>

+#include <climits>

+#include <condition_variable>

+#include <errno.h>

+#include <fcntl.h>

+#include <fstream>

+#include <functional>

+#include <iomanip>

+#include <iostream>

+#include <list>

+#include <map>

+#include <memory>

+#include <mutex>

+#include <random>

+#include <regex>

+#include <set>

+#include <sstream>

+#include <string>

+#include <sys/stat.h>

+#include <thread>

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+#include <openssl/err.h>

+#include <openssl/md5.h>

+#include <openssl/ssl.h>

+#include <openssl/x509v3.h>

+

+#if defined(_WIN32) && defined(OPENSSL_USE_APPLINK)

+#include <openssl/applink.c>

+#endif

+

+#include <iostream>

+#include <sstream>

+

+#if OPENSSL_VERSION_NUMBER < 0x1010100fL

+#error Sorry, OpenSSL versions prior to 1.1.1 are not supported

+#endif

+

+#if OPENSSL_VERSION_NUMBER < 0x10100000L

+#include <openssl/crypto.h>

+inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) {

+  return M_ASN1_STRING_data(asn1);

+}

+#endif

+#endif

+

+#ifdef CPPHTTPLIB_ZLIB_SUPPORT

+#include <zlib.h>

+#endif

+

+#ifdef CPPHTTPLIB_BROTLI_SUPPORT

+#include <brotli/decode.h>

+#include <brotli/encode.h>

+#endif

+

+/*

+ * Declaration

+ */

+namespace httplib {

+

+namespace detail {

+

+/*

+ * Backport std::make_unique from C++14.

+ *

+ * NOTE: This code came up with the following stackoverflow post:

+ * https://stackoverflow.com/questions/10149840/c-arrays-and-make-unique

+ *

+ */

+

+template <class T, class... Args>

+typename std::enable_if<!std::is_array<T>::value, std::unique_ptr<T>>::type

+make_unique(Args &&... args) {

+  return std::unique_ptr<T>(new T(std::forward<Args>(args)...));

+}

+

+template <class T>

+typename std::enable_if<std::is_array<T>::value, std::unique_ptr<T>>::type

+make_unique(std::size_t n) {

+  typedef typename std::remove_extent<T>::type RT;

+  return std::unique_ptr<T>(new RT[n]);

+}

+

+struct ci {

+  bool operator()(const std::string &s1, const std::string &s2) const {

+    return std::lexicographical_compare(s1.begin(), s1.end(), s2.begin(),

+                                        s2.end(),

+                                        [](unsigned char c1, unsigned char c2) {

+                                          return ::tolower(c1) < ::tolower(c2);

+                                        });

+  }

+};

+

+} // namespace detail

+

+using Headers = std::multimap<std::string, std::string, detail::ci>;

+

+using Params = std::multimap<std::string, std::string>;

+using Match = std::smatch;

+

+using Progress = std::function<bool(uint64_t current, uint64_t total)>;

+

+struct Response;

+using ResponseHandler = std::function<bool(const Response &response)>;

+

+struct MultipartFormData {

+  std::string name;

+  std::string content;

+  std::string filename;

+  std::string content_type;

+};

+using MultipartFormDataItems = std::vector<MultipartFormData>;

+using MultipartFormDataMap = std::multimap<std::string, MultipartFormData>;

+

+class DataSink {

+public:

+  DataSink() : os(&sb_), sb_(*this) {}

+

+  DataSink(const DataSink &) = delete;

+  DataSink &operator=(const DataSink &) = delete;

+  DataSink(DataSink &&) = delete;

+  DataSink &operator=(DataSink &&) = delete;

+

+  std::function<bool(const char *data, size_t data_len)> write;

+  std::function<void()> done;

+  std::function<bool()> is_writable;

+  std::ostream os;

+

+private:

+  class data_sink_streambuf : public std::streambuf {

+  public:

+    explicit data_sink_streambuf(DataSink &sink) : sink_(sink) {}

+

+  protected:

+    std::streamsize xsputn(const char *s, std::streamsize n) {

+      sink_.write(s, static_cast<size_t>(n));

+      return n;

+    }

+

+  private:

+    DataSink &sink_;

+  };

+

+  data_sink_streambuf sb_;

+};

+

+using ContentProvider =

+    std::function<bool(size_t offset, size_t length, DataSink &sink)>;

+

+using ContentProviderWithoutLength =

+    std::function<bool(size_t offset, DataSink &sink)>;

+

+using ContentProviderResourceReleaser = std::function<void(bool success)>;

+

+using ContentReceiverWithProgress =

+    std::function<bool(const char *data, size_t data_length, uint64_t offset,

+                       uint64_t total_length)>;

+

+using ContentReceiver =

+    std::function<bool(const char *data, size_t data_length)>;

+

+using MultipartContentHeader =

+    std::function<bool(const MultipartFormData &file)>;

+

+class ContentReader {

+public:

+  using Reader = std::function<bool(ContentReceiver receiver)>;

+  using MultipartReader = std::function<bool(MultipartContentHeader header,

+                                             ContentReceiver receiver)>;

+

+  ContentReader(Reader reader, MultipartReader multipart_reader)

+      : reader_(std::move(reader)),

+        multipart_reader_(std::move(multipart_reader)) {}

+

+  bool operator()(MultipartContentHeader header,

+                  ContentReceiver receiver) const {

+    return multipart_reader_(std::move(header), std::move(receiver));

+  }

+

+  bool operator()(ContentReceiver receiver) const {

+    return reader_(std::move(receiver));

+  }

+

+  Reader reader_;

+  MultipartReader multipart_reader_;

+};

+

+using Range = std::pair<ssize_t, ssize_t>;

+using Ranges = std::vector<Range>;

+

+struct Request {

+  std::string method;

+  std::string path;

+  Headers headers;

+  std::string body;

+

+  std::string remote_addr;

+  int remote_port = -1;

+

+  // for server

+  std::string version;

+  std::string target;

+  Params params;

+  MultipartFormDataMap files;

+  Ranges ranges;

+  Match matches;

+

+  // for client

+  ResponseHandler response_handler;

+  ContentReceiverWithProgress content_receiver;

+  Progress progress;

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  const SSL *ssl = nullptr;

+#endif

+

+  bool has_header(const char *key) const;

+  std::string get_header_value(const char *key, size_t id = 0) const;

+  template <typename T>

+  T get_header_value(const char *key, size_t id = 0) const;

+  size_t get_header_value_count(const char *key) const;

+  void set_header(const char *key, const char *val);

+  void set_header(const char *key, const std::string &val);

+

+  bool has_param(const char *key) const;

+  std::string get_param_value(const char *key, size_t id = 0) const;

+  size_t get_param_value_count(const char *key) const;

+

+  bool is_multipart_form_data() const;

+

+  bool has_file(const char *key) const;

+  MultipartFormData get_file_value(const char *key) const;

+

+  // private members...

+  size_t redirect_count_ = CPPHTTPLIB_REDIRECT_MAX_COUNT;

+  size_t content_length_ = 0;

+  ContentProvider content_provider_;

+  bool is_chunked_content_provider_ = false;

+  size_t authorization_count_ = 0;

+};

+

+struct Response {

+  std::string version;

+  int status = -1;

+  std::string reason;

+  Headers headers;

+  std::string body;

+  std::string location; // Redirect location

+

+  bool has_header(const char *key) const;

+  std::string get_header_value(const char *key, size_t id = 0) const;

+  template <typename T>

+  T get_header_value(const char *key, size_t id = 0) const;

+  size_t get_header_value_count(const char *key) const;

+  void set_header(const char *key, const char *val);

+  void set_header(const char *key, const std::string &val);

+

+  void set_redirect(const char *url, int status = 302);

+  void set_redirect(const std::string &url, int status = 302);

+  void set_content(const char *s, size_t n, const char *content_type);

+  void set_content(const std::string &s, const char *content_type);

+

+  void set_content_provider(

+      size_t length, const char *content_type, ContentProvider provider,

+      ContentProviderResourceReleaser resource_releaser = nullptr);

+

+  void set_content_provider(

+      const char *content_type, ContentProviderWithoutLength provider,

+      ContentProviderResourceReleaser resource_releaser = nullptr);

+

+  void set_chunked_content_provider(

+      const char *content_type, ContentProviderWithoutLength provider,

+      ContentProviderResourceReleaser resource_releaser = nullptr);

+

+  Response() = default;

+  Response(const Response &) = default;

+  Response &operator=(const Response &) = default;

+  Response(Response &&) = default;

+  Response &operator=(Response &&) = default;

+  ~Response() {

+    if (content_provider_resource_releaser_) {

+      content_provider_resource_releaser_(content_provider_success_);

+    }

+  }

+

+  // private members...

+  size_t content_length_ = 0;

+  ContentProvider content_provider_;

+  ContentProviderResourceReleaser content_provider_resource_releaser_;

+  bool is_chunked_content_provider_ = false;

+  bool content_provider_success_ = false;

+};

+

+class Stream {

+public:

+  virtual ~Stream() = default;

+

+  virtual bool is_readable() const = 0;

+  virtual bool is_writable() const = 0;

+

+  virtual ssize_t read(char *ptr, size_t size) = 0;

+  virtual ssize_t write(const char *ptr, size_t size) = 0;

+  virtual void get_remote_ip_and_port(std::string &ip, int &port) const = 0;

+  virtual socket_t socket() const = 0;

+

+  template <typename... Args>

+  ssize_t write_format(const char *fmt, const Args &... args);

+  ssize_t write(const char *ptr);

+  ssize_t write(const std::string &s);

+};

+

+class TaskQueue {

+public:

+  TaskQueue() = default;

+  virtual ~TaskQueue() = default;

+

+  virtual void enqueue(std::function<void()> fn) = 0;

+  virtual void shutdown() = 0;

+

+  virtual void on_idle(){};

+};

+

+class ThreadPool : public TaskQueue {

+public:

+  explicit ThreadPool(size_t n) : shutdown_(false) {

+    while (n) {

+      threads_.emplace_back(worker(*this));

+      n--;

+    }

+  }

+

+  ThreadPool(const ThreadPool &) = delete;

+  ~ThreadPool() override = default;

+

+  void enqueue(std::function<void()> fn) override {

+    std::unique_lock<std::mutex> lock(mutex_);

+    jobs_.push_back(std::move(fn));

+    cond_.notify_one();

+  }

+

+  void shutdown() override {

+    // Stop all worker threads...

+    {

+      std::unique_lock<std::mutex> lock(mutex_);

+      shutdown_ = true;

+    }

+

+    cond_.notify_all();

+

+    // Join...

+    for (auto &t : threads_) {

+      t.join();

+    }

+  }

+

+private:

+  struct worker {

+    explicit worker(ThreadPool &pool) : pool_(pool) {}

+

+    void operator()() {

+      for (;;) {

+        std::function<void()> fn;

+        {

+          std::unique_lock<std::mutex> lock(pool_.mutex_);

+

+          pool_.cond_.wait(

+              lock, [&] { return !pool_.jobs_.empty() || pool_.shutdown_; });

+

+          if (pool_.shutdown_ && pool_.jobs_.empty()) { break; }

+

+          fn = pool_.jobs_.front();

+          pool_.jobs_.pop_front();

+        }

+

+        assert(true == static_cast<bool>(fn));

+        fn();

+      }

+    }

+

+    ThreadPool &pool_;

+  };

+  friend struct worker;

+

+  std::vector<std::thread> threads_;

+  std::list<std::function<void()>> jobs_;

+

+  bool shutdown_;

+

+  std::condition_variable cond_;

+  std::mutex mutex_;

+};

+

+using Logger = std::function<void(const Request &, const Response &)>;

+

+using SocketOptions = std::function<void(socket_t sock)>;

+

+inline void default_socket_options(socket_t sock) {

+  int yes = 1;

+#ifdef _WIN32

+  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<char *>(&yes),

+             sizeof(yes));

+  setsockopt(sock, SOL_SOCKET, SO_EXCLUSIVEADDRUSE,

+             reinterpret_cast<char *>(&yes), sizeof(yes));

+#else

+#ifdef SO_REUSEPORT

+  setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, reinterpret_cast<void *>(&yes),

+             sizeof(yes));

+#else

+  setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast<void *>(&yes),

+             sizeof(yes));

+#endif

+#endif

+}

+

+class Server {

+public:

+  using Handler = std::function<void(const Request &, Response &)>;

+

+  using ExceptionHandler =

+      std::function<void(const Request &, Response &, std::exception &e)>;

+

+  enum class HandlerResponse {

+    Handled,

+    Unhandled,

+  };

+  using HandlerWithResponse =

+      std::function<HandlerResponse(const Request &, Response &)>;

+

+  using HandlerWithContentReader = std::function<void(

+      const Request &, Response &, const ContentReader &content_reader)>;

+

+  using Expect100ContinueHandler =

+      std::function<int(const Request &, Response &)>;

+

+  Server();

+

+  virtual ~Server();

+

+  virtual bool is_valid() const;

+

+  Server &Get(const std::string &pattern, Handler handler);

+  Server &Post(const std::string &pattern, Handler handler);

+  Server &Post(const std::string &pattern, HandlerWithContentReader handler);

+  Server &Put(const std::string &pattern, Handler handler);

+  Server &Put(const std::string &pattern, HandlerWithContentReader handler);

+  Server &Patch(const std::string &pattern, Handler handler);

+  Server &Patch(const std::string &pattern, HandlerWithContentReader handler);

+  Server &Delete(const std::string &pattern, Handler handler);

+  Server &Delete(const std::string &pattern, HandlerWithContentReader handler);

+  Server &Options(const std::string &pattern, Handler handler);

+

+  bool set_base_dir(const std::string &dir,

+                    const std::string &mount_point = nullptr);

+  bool set_mount_point(const std::string &mount_point, const std::string &dir,

+                       Headers headers = Headers());

+  bool remove_mount_point(const std::string &mount_point);

+  Server &set_file_extension_and_mimetype_mapping(const char *ext,

+                                                  const char *mime);

+  Server &set_file_request_handler(Handler handler);

+

+  Server &set_error_handler(HandlerWithResponse handler);

+  Server &set_error_handler(Handler handler);

+  Server &set_exception_handler(ExceptionHandler handler);

+  Server &set_pre_routing_handler(HandlerWithResponse handler);

+  Server &set_post_routing_handler(Handler handler);

+

+  Server &set_expect_100_continue_handler(Expect100ContinueHandler handler);

+  Server &set_logger(Logger logger);

+

+  Server &set_address_family(int family);

+  Server &set_tcp_nodelay(bool on);

+  Server &set_socket_options(SocketOptions socket_options);

+

+  Server &set_default_headers(Headers headers);

+

+  Server &set_keep_alive_max_count(size_t count);

+  Server &set_keep_alive_timeout(time_t sec);

+

+  Server &set_read_timeout(time_t sec, time_t usec = 0);

+  template <class Rep, class Period>

+  Server &set_read_timeout(const std::chrono::duration<Rep, Period> &duration);

+

+  Server &set_write_timeout(time_t sec, time_t usec = 0);

+  template <class Rep, class Period>

+  Server &set_write_timeout(const std::chrono::duration<Rep, Period> &duration);

+

+  Server &set_idle_interval(time_t sec, time_t usec = 0);

+  template <class Rep, class Period>

+  Server &set_idle_interval(const std::chrono::duration<Rep, Period> &duration);

+

+  Server &set_payload_max_length(size_t length);

+

+  bool bind_to_port(const char *host, int port, int socket_flags = 0);

+  int bind_to_any_port(const char *host, int socket_flags = 0);

+  bool listen_after_bind();

+

+  bool listen(const char *host, int port, int socket_flags = 0);

+

+  bool is_running() const;

+  void stop();

+

+  std::function<TaskQueue *(void)> new_task_queue;

+

+protected:

+  bool process_request(Stream &strm, bool close_connection,

+                       bool &connection_closed,

+                       const std::function<void(Request &)> &setup_request);

+

+  std::atomic<socket_t> svr_sock_;

+  size_t keep_alive_max_count_ = CPPHTTPLIB_KEEPALIVE_MAX_COUNT;

+  time_t keep_alive_timeout_sec_ = CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND;

+  time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND;

+  time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND;

+  time_t write_timeout_sec_ = CPPHTTPLIB_WRITE_TIMEOUT_SECOND;

+  time_t write_timeout_usec_ = CPPHTTPLIB_WRITE_TIMEOUT_USECOND;

+  time_t idle_interval_sec_ = CPPHTTPLIB_IDLE_INTERVAL_SECOND;

+  time_t idle_interval_usec_ = CPPHTTPLIB_IDLE_INTERVAL_USECOND;

+  size_t payload_max_length_ = CPPHTTPLIB_PAYLOAD_MAX_LENGTH;

+

+private:

+  using Handlers = std::vector<std::pair<std::regex, Handler>>;

+  using HandlersForContentReader =

+      std::vector<std::pair<std::regex, HandlerWithContentReader>>;

+

+  socket_t create_server_socket(const char *host, int port, int socket_flags,

+                                SocketOptions socket_options) const;

+  int bind_internal(const char *host, int port, int socket_flags);

+  bool listen_internal();

+

+  bool routing(Request &req, Response &res, Stream &strm);

+  bool handle_file_request(const Request &req, Response &res,

+                           bool head = false);

+  bool dispatch_request(Request &req, Response &res, const Handlers &handlers);

+  bool

+  dispatch_request_for_content_reader(Request &req, Response &res,

+                                      ContentReader content_reader,

+                                      const HandlersForContentReader &handlers);

+

+  bool parse_request_line(const char *s, Request &req);

+  void apply_ranges(const Request &req, Response &res,

+                    std::string &content_type, std::string &boundary);

+  bool write_response(Stream &strm, bool close_connection, const Request &req,

+                      Response &res);

+  bool write_response_with_content(Stream &strm, bool close_connection,

+                                   const Request &req, Response &res);

+  bool write_response_core(Stream &strm, bool close_connection,

+                           const Request &req, Response &res,

+                           bool need_apply_ranges);

+  bool write_content_with_provider(Stream &strm, const Request &req,

+                                   Response &res, const std::string &boundary,

+                                   const std::string &content_type);

+  bool read_content(Stream &strm, Request &req, Response &res);

+  bool

+  read_content_with_content_receiver(Stream &strm, Request &req, Response &res,

+                                     ContentReceiver receiver,

+                                     MultipartContentHeader multipart_header,

+                                     ContentReceiver multipart_receiver);

+  bool read_content_core(Stream &strm, Request &req, Response &res,

+                         ContentReceiver receiver,

+                         MultipartContentHeader mulitpart_header,

+                         ContentReceiver multipart_receiver);

+

+  virtual bool process_and_close_socket(socket_t sock);

+

+  struct MountPointEntry {

+    std::string mount_point;

+    std::string base_dir;

+    Headers headers;

+  };

+  std::vector<MountPointEntry> base_dirs_;

+

+  std::atomic<bool> is_running_;

+  std::map<std::string, std::string> file_extension_and_mimetype_map_;

+  Handler file_request_handler_;

+  Handlers get_handlers_;

+  Handlers post_handlers_;

+  HandlersForContentReader post_handlers_for_content_reader_;

+  Handlers put_handlers_;

+  HandlersForContentReader put_handlers_for_content_reader_;

+  Handlers patch_handlers_;

+  HandlersForContentReader patch_handlers_for_content_reader_;

+  Handlers delete_handlers_;

+  HandlersForContentReader delete_handlers_for_content_reader_;

+  Handlers options_handlers_;

+  HandlerWithResponse error_handler_;

+  ExceptionHandler exception_handler_;

+  HandlerWithResponse pre_routing_handler_;

+  Handler post_routing_handler_;

+  Logger logger_;

+  Expect100ContinueHandler expect_100_continue_handler_;

+

+  int address_family_ = AF_UNSPEC;

+  bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY;

+  SocketOptions socket_options_ = default_socket_options;

+

+  Headers default_headers_;

+};

+

+enum class Error {

+  Success = 0,

+  Unknown,

+  Connection,

+  BindIPAddress,

+  Read,

+  Write,

+  ExceedRedirectCount,

+  Canceled,

+  SSLConnection,

+  SSLLoadingCerts,

+  SSLServerVerification,

+  UnsupportedMultipartBoundaryChars,

+  Compression,

+};

+

+inline std::string to_string(const Error error) {

+  switch (error) {

+  case Error::Success: return "Success";

+  case Error::Connection: return "Connection";

+  case Error::BindIPAddress: return "BindIPAddress";

+  case Error::Read: return "Read";

+  case Error::Write: return "Write";

+  case Error::ExceedRedirectCount: return "ExceedRedirectCount";

+  case Error::Canceled: return "Canceled";

+  case Error::SSLConnection: return "SSLConnection";

+  case Error::SSLLoadingCerts: return "SSLLoadingCerts";

+  case Error::SSLServerVerification: return "SSLServerVerification";

+  case Error::UnsupportedMultipartBoundaryChars:

+    return "UnsupportedMultipartBoundaryChars";

+  case Error::Compression: return "Compression";

+  case Error::Unknown: return "Unknown";

+  default: break;

+  }

+

+  return "Invalid";

+}

+

+inline std::ostream &operator<<(std::ostream &os, const Error &obj) {

+  os << to_string(obj);

+  os << " (" << static_cast<std::underlying_type<Error>::type>(obj) << ')';

+  return os;

+}

+

+class Result {

+public:

+  Result(std::unique_ptr<Response> &&res, Error err,

+         Headers &&request_headers = Headers{})

+      : res_(std::move(res)), err_(err),

+        request_headers_(std::move(request_headers)) {}

+  // Response

+  operator bool() const { return res_ != nullptr; }

+  bool operator==(std::nullptr_t) const { return res_ == nullptr; }

+  bool operator!=(std::nullptr_t) const { return res_ != nullptr; }

+  const Response &value() const { return *res_; }

+  Response &value() { return *res_; }

+  const Response &operator*() const { return *res_; }

+  Response &operator*() { return *res_; }

+  const Response *operator->() const { return res_.get(); }

+  Response *operator->() { return res_.get(); }

+

+  // Error

+  Error error() const { return err_; }

+

+  // Request Headers

+  bool has_request_header(const char *key) const;

+  std::string get_request_header_value(const char *key, size_t id = 0) const;

+  template <typename T>

+  T get_request_header_value(const char *key, size_t id = 0) const;

+  size_t get_request_header_value_count(const char *key) const;

+

+private:

+  std::unique_ptr<Response> res_;

+  Error err_;

+  Headers request_headers_;

+};

+

+class ClientImpl {

+public:

+  explicit ClientImpl(const std::string &host);

+

+  explicit ClientImpl(const std::string &host, int port);

+

+  explicit ClientImpl(const std::string &host, int port,

+                      const std::string &client_cert_path,

+                      const std::string &client_key_path);

+

+  virtual ~ClientImpl();

+

+  virtual bool is_valid() const;

+

+  Result Get(const char *path);

+  Result Get(const char *path, const Headers &headers);

+  Result Get(const char *path, Progress progress);

+  Result Get(const char *path, const Headers &headers, Progress progress);

+  Result Get(const char *path, ContentReceiver content_receiver);

+  Result Get(const char *path, const Headers &headers,

+             ContentReceiver content_receiver);

+  Result Get(const char *path, ContentReceiver content_receiver,

+             Progress progress);

+  Result Get(const char *path, const Headers &headers,

+             ContentReceiver content_receiver, Progress progress);

+  Result Get(const char *path, ResponseHandler response_handler,

+             ContentReceiver content_receiver);

+  Result Get(const char *path, const Headers &headers,

+             ResponseHandler response_handler,

+             ContentReceiver content_receiver);

+  Result Get(const char *path, ResponseHandler response_handler,

+             ContentReceiver content_receiver, Progress progress);

+  Result Get(const char *path, const Headers &headers,

+             ResponseHandler response_handler, ContentReceiver content_receiver,

+             Progress progress);

+

+  Result Get(const char *path, const Params &params, const Headers &headers,

+             Progress progress = nullptr);

+  Result Get(const char *path, const Params &params, const Headers &headers,

+             ContentReceiver content_receiver, Progress progress = nullptr);

+  Result Get(const char *path, const Params &params, const Headers &headers,

+             ResponseHandler response_handler, ContentReceiver content_receiver,

+             Progress progress = nullptr);

+

+  Result Head(const char *path);

+  Result Head(const char *path, const Headers &headers);

+

+  Result Post(const char *path);

+  Result Post(const char *path, const char *body, size_t content_length,

+              const char *content_type);

+  Result Post(const char *path, const Headers &headers, const char *body,

+              size_t content_length, const char *content_type);

+  Result Post(const char *path, const std::string &body,

+              const char *content_type);

+  Result Post(const char *path, const Headers &headers, const std::string &body,

+              const char *content_type);

+  Result Post(const char *path, size_t content_length,

+              ContentProvider content_provider, const char *content_type);

+  Result Post(const char *path, ContentProviderWithoutLength content_provider,

+              const char *content_type);

+  Result Post(const char *path, const Headers &headers, size_t content_length,

+              ContentProvider content_provider, const char *content_type);

+  Result Post(const char *path, const Headers &headers,

+              ContentProviderWithoutLength content_provider,

+              const char *content_type);

+  Result Post(const char *path, const Params &params);

+  Result Post(const char *path, const Headers &headers, const Params &params);

+  Result Post(const char *path, const MultipartFormDataItems &items);

+  Result Post(const char *path, const Headers &headers,

+              const MultipartFormDataItems &items);

+  Result Post(const char *path, const Headers &headers,

+              const MultipartFormDataItems &items, const std::string &boundary);

+

+  Result Put(const char *path);

+  Result Put(const char *path, const char *body, size_t content_length,

+             const char *content_type);

+  Result Put(const char *path, const Headers &headers, const char *body,

+             size_t content_length, const char *content_type);

+  Result Put(const char *path, const std::string &body,

+             const char *content_type);

+  Result Put(const char *path, const Headers &headers, const std::string &body,

+             const char *content_type);

+  Result Put(const char *path, size_t content_length,

+             ContentProvider content_provider, const char *content_type);

+  Result Put(const char *path, ContentProviderWithoutLength content_provider,

+             const char *content_type);

+  Result Put(const char *path, const Headers &headers, size_t content_length,

+             ContentProvider content_provider, const char *content_type);

+  Result Put(const char *path, const Headers &headers,

+             ContentProviderWithoutLength content_provider,

+             const char *content_type);

+  Result Put(const char *path, const Params &params);

+  Result Put(const char *path, const Headers &headers, const Params &params);

+

+  Result Patch(const char *path);

+  Result Patch(const char *path, const char *body, size_t content_length,

+               const char *content_type);

+  Result Patch(const char *path, const Headers &headers, const char *body,

+               size_t content_length, const char *content_type);

+  Result Patch(const char *path, const std::string &body,

+               const char *content_type);

+  Result Patch(const char *path, const Headers &headers,

+               const std::string &body, const char *content_type);

+  Result Patch(const char *path, size_t content_length,

+               ContentProvider content_provider, const char *content_type);

+  Result Patch(const char *path, ContentProviderWithoutLength content_provider,

+               const char *content_type);

+  Result Patch(const char *path, const Headers &headers, size_t content_length,

+               ContentProvider content_provider, const char *content_type);

+  Result Patch(const char *path, const Headers &headers,

+               ContentProviderWithoutLength content_provider,

+               const char *content_type);

+

+  Result Delete(const char *path);

+  Result Delete(const char *path, const Headers &headers);

+  Result Delete(const char *path, const char *body, size_t content_length,

+                const char *content_type);

+  Result Delete(const char *path, const Headers &headers, const char *body,

+                size_t content_length, const char *content_type);

+  Result Delete(const char *path, const std::string &body,

+                const char *content_type);

+  Result Delete(const char *path, const Headers &headers,

+                const std::string &body, const char *content_type);

+

+  Result Options(const char *path);

+  Result Options(const char *path, const Headers &headers);

+

+  bool send(Request &req, Response &res, Error &error);

+  Result send(const Request &req);

+

+  size_t is_socket_open() const;

+

+  void stop();

+

+  void set_default_headers(Headers headers);

+

+  void set_address_family(int family);

+  void set_tcp_nodelay(bool on);

+  void set_socket_options(SocketOptions socket_options);

+

+  void set_connection_timeout(time_t sec, time_t usec = 0);

+  template <class Rep, class Period>

+  void

+  set_connection_timeout(const std::chrono::duration<Rep, Period> &duration);

+

+  void set_read_timeout(time_t sec, time_t usec = 0);

+  template <class Rep, class Period>

+  void set_read_timeout(const std::chrono::duration<Rep, Period> &duration);

+

+  void set_write_timeout(time_t sec, time_t usec = 0);

+  template <class Rep, class Period>

+  void set_write_timeout(const std::chrono::duration<Rep, Period> &duration);

+

+  void set_basic_auth(const char *username, const char *password);

+  void set_bearer_token_auth(const char *token);

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  void set_digest_auth(const char *username, const char *password);

+#endif

+

+  void set_keep_alive(bool on);

+  void set_follow_location(bool on);

+

+  void set_url_encode(bool on);

+

+  void set_compress(bool on);

+

+  void set_decompress(bool on);

+

+  void set_interface(const char *intf);

+

+  void set_proxy(const char *host, int port);

+  void set_proxy_basic_auth(const char *username, const char *password);

+  void set_proxy_bearer_token_auth(const char *token);

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  void set_proxy_digest_auth(const char *username, const char *password);

+#endif

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  void set_ca_cert_path(const char *ca_cert_file_path,

+                        const char *ca_cert_dir_path = nullptr);

+  void set_ca_cert_store(X509_STORE *ca_cert_store);

+#endif

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  void enable_server_certificate_verification(bool enabled);

+#endif

+

+  void set_logger(Logger logger);

+

+protected:

+  struct Socket {

+    socket_t sock = INVALID_SOCKET;

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+    SSL *ssl = nullptr;

+#endif

+

+    bool is_open() const { return sock != INVALID_SOCKET; }

+  };

+

+  Result send_(Request &&req);

+

+  virtual bool create_and_connect_socket(Socket &socket, Error &error);

+

+  // All of:

+  //   shutdown_ssl

+  //   shutdown_socket

+  //   close_socket

+  // should ONLY be called when socket_mutex_ is locked.

+  // Also, shutdown_ssl and close_socket should also NOT be called concurrently

+  // with a DIFFERENT thread sending requests using that socket.

+  virtual void shutdown_ssl(Socket &socket, bool shutdown_gracefully);

+  void shutdown_socket(Socket &socket);

+  void close_socket(Socket &socket);

+

+  bool process_request(Stream &strm, Request &req, Response &res,

+                       bool close_connection, Error &error);

+

+  bool write_content_with_provider(Stream &strm, const Request &req,

+                                   Error &error);

+

+  void copy_settings(const ClientImpl &rhs);

+

+  // Socket endoint information

+  const std::string host_;

+  const int port_;

+  const std::string host_and_port_;

+

+  // Current open socket

+  Socket socket_;

+  mutable std::mutex socket_mutex_;

+  std::recursive_mutex request_mutex_;

+

+  // These are all protected under socket_mutex

+  size_t socket_requests_in_flight_ = 0;

+  std::thread::id socket_requests_are_from_thread_ = std::thread::id();

+  bool socket_should_be_closed_when_request_is_done_ = false;

+

+  // Default headers

+  Headers default_headers_;

+

+  // Settings

+  std::string client_cert_path_;

+  std::string client_key_path_;

+

+  time_t connection_timeout_sec_ = CPPHTTPLIB_CONNECTION_TIMEOUT_SECOND;

+  time_t connection_timeout_usec_ = CPPHTTPLIB_CONNECTION_TIMEOUT_USECOND;

+  time_t read_timeout_sec_ = CPPHTTPLIB_READ_TIMEOUT_SECOND;

+  time_t read_timeout_usec_ = CPPHTTPLIB_READ_TIMEOUT_USECOND;

+  time_t write_timeout_sec_ = CPPHTTPLIB_WRITE_TIMEOUT_SECOND;

+  time_t write_timeout_usec_ = CPPHTTPLIB_WRITE_TIMEOUT_USECOND;

+

+  std::string basic_auth_username_;

+  std::string basic_auth_password_;

+  std::string bearer_token_auth_token_;

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  std::string digest_auth_username_;

+  std::string digest_auth_password_;

+#endif

+

+  bool keep_alive_ = false;

+  bool follow_location_ = false;

+

+  bool url_encode_ = true;

+

+  int address_family_ = AF_UNSPEC;

+  bool tcp_nodelay_ = CPPHTTPLIB_TCP_NODELAY;

+  SocketOptions socket_options_ = nullptr;

+

+  bool compress_ = false;

+  bool decompress_ = true;

+

+  std::string interface_;

+

+  std::string proxy_host_;

+  int proxy_port_ = -1;

+

+  std::string proxy_basic_auth_username_;

+  std::string proxy_basic_auth_password_;

+  std::string proxy_bearer_token_auth_token_;

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  std::string proxy_digest_auth_username_;

+  std::string proxy_digest_auth_password_;

+#endif

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  std::string ca_cert_file_path_;

+  std::string ca_cert_dir_path_;

+

+  X509_STORE *ca_cert_store_ = nullptr;

+#endif

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  bool server_certificate_verification_ = true;

+#endif

+

+  Logger logger_;

+

+private:

+  socket_t create_client_socket(Error &error) const;

+  bool read_response_line(Stream &strm, const Request &req, Response &res);

+  bool write_request(Stream &strm, Request &req, bool close_connection,

+                     Error &error);

+  bool redirect(Request &req, Response &res, Error &error);

+  bool handle_request(Stream &strm, Request &req, Response &res,

+                      bool close_connection, Error &error);

+  std::unique_ptr<Response> send_with_content_provider(

+      Request &req,

+      // const char *method, const char *path, const Headers &headers,

+      const char *body, size_t content_length, ContentProvider content_provider,

+      ContentProviderWithoutLength content_provider_without_length,

+      const char *content_type, Error &error);

+  Result send_with_content_provider(

+      const char *method, const char *path, const Headers &headers,

+      const char *body, size_t content_length, ContentProvider content_provider,

+      ContentProviderWithoutLength content_provider_without_length,

+      const char *content_type);

+

+  std::string adjust_host_string(const std::string &host) const;

+

+  virtual bool process_socket(const Socket &socket,

+                              std::function<bool(Stream &strm)> callback);

+  virtual bool is_ssl() const;

+};

+

+class Client {

+public:

+  // Universal interface

+  explicit Client(const std::string &scheme_host_port);

+

+  explicit Client(const std::string &scheme_host_port,

+                  const std::string &client_cert_path,

+                  const std::string &client_key_path);

+

+  // HTTP only interface

+  explicit Client(const std::string &host, int port);

+

+  explicit Client(const std::string &host, int port,

+                  const std::string &client_cert_path,

+                  const std::string &client_key_path);

+

+  ~Client();

+

+  bool is_valid() const;

+

+  Result Get(const char *path);

+  Result Get(const char *path, const Headers &headers);

+  Result Get(const char *path, Progress progress);

+  Result Get(const char *path, const Headers &headers, Progress progress);

+  Result Get(const char *path, ContentReceiver content_receiver);

+  Result Get(const char *path, const Headers &headers,

+             ContentReceiver content_receiver);

+  Result Get(const char *path, ContentReceiver content_receiver,

+             Progress progress);

+  Result Get(const char *path, const Headers &headers,

+             ContentReceiver content_receiver, Progress progress);

+  Result Get(const char *path, ResponseHandler response_handler,

+             ContentReceiver content_receiver);

+  Result Get(const char *path, const Headers &headers,

+             ResponseHandler response_handler,

+             ContentReceiver content_receiver);

+  Result Get(const char *path, const Headers &headers,

+             ResponseHandler response_handler, ContentReceiver content_receiver,

+             Progress progress);

+  Result Get(const char *path, ResponseHandler response_handler,

+             ContentReceiver content_receiver, Progress progress);

+

+  Result Get(const char *path, const Params &params, const Headers &headers,

+             Progress progress = nullptr);

+  Result Get(const char *path, const Params &params, const Headers &headers,

+             ContentReceiver content_receiver, Progress progress = nullptr);

+  Result Get(const char *path, const Params &params, const Headers &headers,

+             ResponseHandler response_handler, ContentReceiver content_receiver,

+             Progress progress = nullptr);

+

+  Result Head(const char *path);

+  Result Head(const char *path, const Headers &headers);

+

+  Result Post(const char *path);

+  Result Post(const char *path, const char *body, size_t content_length,

+              const char *content_type);

+  Result Post(const char *path, const Headers &headers, const char *body,

+              size_t content_length, const char *content_type);

+  Result Post(const char *path, const std::string &body,

+              const char *content_type);

+  Result Post(const char *path, const Headers &headers, const std::string &body,

+              const char *content_type);

+  Result Post(const char *path, size_t content_length,

+              ContentProvider content_provider, const char *content_type);

+  Result Post(const char *path, ContentProviderWithoutLength content_provider,

+              const char *content_type);

+  Result Post(const char *path, const Headers &headers, size_t content_length,

+              ContentProvider content_provider, const char *content_type);

+  Result Post(const char *path, const Headers &headers,

+              ContentProviderWithoutLength content_provider,

+              const char *content_type);

+  Result Post(const char *path, const Params &params);

+  Result Post(const char *path, const Headers &headers, const Params &params);

+  Result Post(const char *path, const MultipartFormDataItems &items);

+  Result Post(const char *path, const Headers &headers,

+              const MultipartFormDataItems &items);

+  Result Post(const char *path, const Headers &headers,

+              const MultipartFormDataItems &items, const std::string &boundary);

+  Result Put(const char *path);

+  Result Put(const char *path, const char *body, size_t content_length,

+             const char *content_type);

+  Result Put(const char *path, const Headers &headers, const char *body,

+             size_t content_length, const char *content_type);

+  Result Put(const char *path, const std::string &body,

+             const char *content_type);

+  Result Put(const char *path, const Headers &headers, const std::string &body,

+             const char *content_type);

+  Result Put(const char *path, size_t content_length,

+             ContentProvider content_provider, const char *content_type);

+  Result Put(const char *path, ContentProviderWithoutLength content_provider,

+             const char *content_type);

+  Result Put(const char *path, const Headers &headers, size_t content_length,

+             ContentProvider content_provider, const char *content_type);

+  Result Put(const char *path, const Headers &headers,

+             ContentProviderWithoutLength content_provider,

+             const char *content_type);

+  Result Put(const char *path, const Params &params);

+  Result Put(const char *path, const Headers &headers, const Params &params);

+  Result Patch(const char *path);

+  Result Patch(const char *path, const char *body, size_t content_length,

+               const char *content_type);

+  Result Patch(const char *path, const Headers &headers, const char *body,

+               size_t content_length, const char *content_type);

+  Result Patch(const char *path, const std::string &body,

+               const char *content_type);

+  Result Patch(const char *path, const Headers &headers,

+               const std::string &body, const char *content_type);

+  Result Patch(const char *path, size_t content_length,

+               ContentProvider content_provider, const char *content_type);

+  Result Patch(const char *path, ContentProviderWithoutLength content_provider,

+               const char *content_type);

+  Result Patch(const char *path, const Headers &headers, size_t content_length,

+               ContentProvider content_provider, const char *content_type);

+  Result Patch(const char *path, const Headers &headers,

+               ContentProviderWithoutLength content_provider,

+               const char *content_type);

+

+  Result Delete(const char *path);

+  Result Delete(const char *path, const Headers &headers);

+  Result Delete(const char *path, const char *body, size_t content_length,

+                const char *content_type);

+  Result Delete(const char *path, const Headers &headers, const char *body,

+                size_t content_length, const char *content_type);

+  Result Delete(const char *path, const std::string &body,

+                const char *content_type);

+  Result Delete(const char *path, const Headers &headers,

+                const std::string &body, const char *content_type);

+

+  Result Options(const char *path);

+  Result Options(const char *path, const Headers &headers);

+

+  bool send(Request &req, Response &res, Error &error);

+  Result send(const Request &req);

+

+  size_t is_socket_open() const;

+

+  void stop();

+

+  void set_default_headers(Headers headers);

+

+  void set_address_family(int family);

+  void set_tcp_nodelay(bool on);

+  void set_socket_options(SocketOptions socket_options);

+

+  void set_connection_timeout(time_t sec, time_t usec = 0);

+  template <class Rep, class Period>

+  void

+  set_connection_timeout(const std::chrono::duration<Rep, Period> &duration);

+

+  void set_read_timeout(time_t sec, time_t usec = 0);

+  template <class Rep, class Period>

+  void set_read_timeout(const std::chrono::duration<Rep, Period> &duration);

+

+  void set_write_timeout(time_t sec, time_t usec = 0);

+  template <class Rep, class Period>

+  void set_write_timeout(const std::chrono::duration<Rep, Period> &duration);

+

+  void set_basic_auth(const char *username, const char *password);

+  void set_bearer_token_auth(const char *token);

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  void set_digest_auth(const char *username, const char *password);

+#endif

+

+  void set_keep_alive(bool on);

+  void set_follow_location(bool on);

+

+  void set_url_encode(bool on);

+

+  void set_compress(bool on);

+

+  void set_decompress(bool on);

+

+  void set_interface(const char *intf);

+

+  void set_proxy(const char *host, int port);

+  void set_proxy_basic_auth(const char *username, const char *password);

+  void set_proxy_bearer_token_auth(const char *token);

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  void set_proxy_digest_auth(const char *username, const char *password);

+#endif

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  void enable_server_certificate_verification(bool enabled);

+#endif

+

+  void set_logger(Logger logger);

+

+  // SSL

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  void set_ca_cert_path(const char *ca_cert_file_path,

+                        const char *ca_cert_dir_path = nullptr);

+

+  void set_ca_cert_store(X509_STORE *ca_cert_store);

+

+  long get_openssl_verify_result() const;

+

+  SSL_CTX *ssl_context() const;

+#endif

+

+private:

+  std::unique_ptr<ClientImpl> cli_;

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  bool is_ssl_ = false;

+#endif

+};

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+class SSLServer : public Server {

+public:

+  SSLServer(const char *cert_path, const char *private_key_path,

+            const char *client_ca_cert_file_path = nullptr,

+            const char *client_ca_cert_dir_path = nullptr);

+

+  SSLServer(X509 *cert, EVP_PKEY *private_key,

+            X509_STORE *client_ca_cert_store = nullptr);

+

+  ~SSLServer() override;

+

+  bool is_valid() const override;

+

+private:

+  bool process_and_close_socket(socket_t sock) override;

+

+  SSL_CTX *ctx_;

+  std::mutex ctx_mutex_;

+};

+

+class SSLClient : public ClientImpl {

+public:

+  explicit SSLClient(const std::string &host);

+

+  explicit SSLClient(const std::string &host, int port);

+

+  explicit SSLClient(const std::string &host, int port,

+                     const std::string &client_cert_path,

+                     const std::string &client_key_path);

+

+  explicit SSLClient(const std::string &host, int port, X509 *client_cert,

+                     EVP_PKEY *client_key);

+

+  ~SSLClient() override;

+

+  bool is_valid() const override;

+

+  void set_ca_cert_store(X509_STORE *ca_cert_store);

+

+  long get_openssl_verify_result() const;

+

+  SSL_CTX *ssl_context() const;

+

+private:

+  bool create_and_connect_socket(Socket &socket, Error &error) override;

+  void shutdown_ssl(Socket &socket, bool shutdown_gracefully) override;

+  void shutdown_ssl_impl(Socket &socket, bool shutdown_socket);

+

+  bool process_socket(const Socket &socket,

+                      std::function<bool(Stream &strm)> callback) override;

+  bool is_ssl() const override;

+

+  bool connect_with_proxy(Socket &sock, Response &res, bool &success,

+                          Error &error);

+  bool initialize_ssl(Socket &socket, Error &error);

+

+  bool load_certs();

+

+  bool verify_host(X509 *server_cert) const;

+  bool verify_host_with_subject_alt_name(X509 *server_cert) const;

+  bool verify_host_with_common_name(X509 *server_cert) const;

+  bool check_host_name(const char *pattern, size_t pattern_len) const;

+

+  SSL_CTX *ctx_;

+  std::mutex ctx_mutex_;

+  std::once_flag initialize_cert_;

+

+  std::vector<std::string> host_components_;

+

+  long verify_result_ = 0;

+

+  friend class ClientImpl;

+};

+#endif

+

+/*

+ * Implementation of template methods.

+ */

+

+namespace detail {

+

+template <typename T, typename U>

+inline void duration_to_sec_and_usec(const T &duration, U callback) {

+  auto sec = std::chrono::duration_cast<std::chrono::seconds>(duration).count();

+  auto usec = std::chrono::duration_cast<std::chrono::microseconds>(

+                  duration - std::chrono::seconds(sec))

+                  .count();

+  callback(sec, usec);

+}

+

+template <typename T>

+inline T get_header_value(const Headers & /*headers*/, const char * /*key*/,

+                          size_t /*id*/ = 0, uint64_t /*def*/ = 0) {}

+

+template <>

+inline uint64_t get_header_value<uint64_t>(const Headers &headers,

+                                           const char *key, size_t id,

+                                           uint64_t def) {

+  auto rng = headers.equal_range(key);

+  auto it = rng.first;

+  std::advance(it, static_cast<ssize_t>(id));

+  if (it != rng.second) {

+    return std::strtoull(it->second.data(), nullptr, 10);

+  }

+  return def;

+}

+

+} // namespace detail

+

+template <typename T>

+inline T Request::get_header_value(const char *key, size_t id) const {

+  return detail::get_header_value<T>(headers, key, id, 0);

+}

+

+template <typename T>

+inline T Response::get_header_value(const char *key, size_t id) const {

+  return detail::get_header_value<T>(headers, key, id, 0);

+}

+

+template <typename... Args>

+inline ssize_t Stream::write_format(const char *fmt, const Args &... args) {

+  const auto bufsiz = 2048;

+  std::array<char, bufsiz> buf;

+

+#if defined(_MSC_VER) && _MSC_VER < 1900

+  auto sn = _snprintf_s(buf.data(), bufsiz - 1, buf.size() - 1, fmt, args...);

+#else

+  auto sn = snprintf(buf.data(), buf.size() - 1, fmt, args...);

+#endif

+  if (sn <= 0) { return sn; }

+

+  auto n = static_cast<size_t>(sn);

+

+  if (n >= buf.size() - 1) {

+    std::vector<char> glowable_buf(buf.size());

+

+    while (n >= glowable_buf.size() - 1) {

+      glowable_buf.resize(glowable_buf.size() * 2);

+#if defined(_MSC_VER) && _MSC_VER < 1900

+      n = static_cast<size_t>(_snprintf_s(&glowable_buf[0], glowable_buf.size(),

+                                          glowable_buf.size() - 1, fmt,

+                                          args...));

+#else

+      n = static_cast<size_t>(

+          snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...));

+#endif

+    }

+    return write(&glowable_buf[0], n);

+  } else {

+    return write(buf.data(), n);

+  }

+}

+

+template <class Rep, class Period>

+inline Server &

+Server::set_read_timeout(const std::chrono::duration<Rep, Period> &duration) {

+  detail::duration_to_sec_and_usec(

+      duration, [&](time_t sec, time_t usec) { set_read_timeout(sec, usec); });

+  return *this;

+}

+

+template <class Rep, class Period>

+inline Server &

+Server::set_write_timeout(const std::chrono::duration<Rep, Period> &duration) {

+  detail::duration_to_sec_and_usec(

+      duration, [&](time_t sec, time_t usec) { set_write_timeout(sec, usec); });

+  return *this;

+}

+

+template <class Rep, class Period>

+inline Server &

+Server::set_idle_interval(const std::chrono::duration<Rep, Period> &duration) {

+  detail::duration_to_sec_and_usec(

+      duration, [&](time_t sec, time_t usec) { set_idle_interval(sec, usec); });

+  return *this;

+}

+

+template <typename T>

+inline T Result::get_request_header_value(const char *key, size_t id) const {

+  return detail::get_header_value<T>(request_headers_, key, id, 0);

+}

+

+template <class Rep, class Period>

+inline void ClientImpl::set_connection_timeout(

+    const std::chrono::duration<Rep, Period> &duration) {

+  detail::duration_to_sec_and_usec(duration, [&](time_t sec, time_t usec) {

+    set_connection_timeout(sec, usec);

+  });

+}

+

+template <class Rep, class Period>

+inline void ClientImpl::set_read_timeout(

+    const std::chrono::duration<Rep, Period> &duration) {

+  detail::duration_to_sec_and_usec(

+      duration, [&](time_t sec, time_t usec) { set_read_timeout(sec, usec); });

+}

+

+template <class Rep, class Period>

+inline void ClientImpl::set_write_timeout(

+    const std::chrono::duration<Rep, Period> &duration) {

+  detail::duration_to_sec_and_usec(

+      duration, [&](time_t sec, time_t usec) { set_write_timeout(sec, usec); });

+}

+

+template <class Rep, class Period>

+inline void Client::set_connection_timeout(

+    const std::chrono::duration<Rep, Period> &duration) {

+  cli_->set_connection_timeout(duration);

+}

+

+template <class Rep, class Period>

+inline void

+Client::set_read_timeout(const std::chrono::duration<Rep, Period> &duration) {

+  cli_->set_read_timeout(duration);

+}

+

+template <class Rep, class Period>

+inline void

+Client::set_write_timeout(const std::chrono::duration<Rep, Period> &duration) {

+  cli_->set_write_timeout(duration);

+}

+

+/*

+ * Forward declarations and types that will be part of the .h file if split into

+ * .h + .cc.

+ */

+

+std::pair<std::string, std::string> make_range_header(Ranges ranges);

+

+std::pair<std::string, std::string>

+make_basic_authentication_header(const std::string &username,

+                                 const std::string &password,

+                                 bool is_proxy = false);

+

+namespace detail {

+

+std::string encode_query_param(const std::string &value);

+

+void read_file(const std::string &path, std::string &out);

+

+std::string trim_copy(const std::string &s);

+

+void split(const char *b, const char *e, char d,

+           std::function<void(const char *, const char *)> fn);

+

+bool process_client_socket(socket_t sock, time_t read_timeout_sec,

+                           time_t read_timeout_usec, time_t write_timeout_sec,

+                           time_t write_timeout_usec,

+                           std::function<bool(Stream &)> callback);

+

+socket_t create_client_socket(const char *host, int port, int address_family,

+                              bool tcp_nodelay, SocketOptions socket_options,

+                              time_t connection_timeout_sec,

+                              time_t connection_timeout_usec,

+                              time_t read_timeout_sec, time_t read_timeout_usec,

+                              time_t write_timeout_sec,

+                              time_t write_timeout_usec,

+                              const std::string &intf, Error &error);

+

+const char *get_header_value(const Headers &headers, const char *key,

+                             size_t id = 0, const char *def = nullptr);

+

+std::string params_to_query_str(const Params &params);

+

+void parse_query_text(const std::string &s, Params &params);

+

+bool parse_range_header(const std::string &s, Ranges &ranges);

+

+int close_socket(socket_t sock);

+

+enum class EncodingType { None = 0, Gzip, Brotli };

+

+EncodingType encoding_type(const Request &req, const Response &res);

+

+class BufferStream : public Stream {

+public:

+  BufferStream() = default;

+  ~BufferStream() override = default;

+

+  bool is_readable() const override;

+  bool is_writable() const override;

+  ssize_t read(char *ptr, size_t size) override;

+  ssize_t write(const char *ptr, size_t size) override;

+  void get_remote_ip_and_port(std::string &ip, int &port) const override;

+  socket_t socket() const override;

+

+  const std::string &get_buffer() const;

+

+private:

+  std::string buffer;

+  size_t position = 0;

+};

+

+class compressor {

+public:

+  virtual ~compressor() = default;

+

+  typedef std::function<bool(const char *data, size_t data_len)> Callback;

+  virtual bool compress(const char *data, size_t data_length, bool last,

+                        Callback callback) = 0;

+};

+

+class decompressor {

+public:

+  virtual ~decompressor() = default;

+

+  virtual bool is_valid() const = 0;

+

+  typedef std::function<bool(const char *data, size_t data_len)> Callback;

+  virtual bool decompress(const char *data, size_t data_length,

+                          Callback callback) = 0;

+};

+

+class nocompressor : public compressor {

+public:

+  virtual ~nocompressor() = default;

+

+  bool compress(const char *data, size_t data_length, bool /*last*/,

+                Callback callback) override;

+};

+

+#ifdef CPPHTTPLIB_ZLIB_SUPPORT

+class gzip_compressor : public compressor {

+public:

+  gzip_compressor();

+  ~gzip_compressor();

+

+  bool compress(const char *data, size_t data_length, bool last,

+                Callback callback) override;

+

+private:

+  bool is_valid_ = false;

+  z_stream strm_;

+};

+

+class gzip_decompressor : public decompressor {

+public:

+  gzip_decompressor();

+  ~gzip_decompressor();

+

+  bool is_valid() const override;

+

+  bool decompress(const char *data, size_t data_length,

+                  Callback callback) override;

+

+private:

+  bool is_valid_ = false;

+  z_stream strm_;

+};

+#endif

+

+#ifdef CPPHTTPLIB_BROTLI_SUPPORT

+class brotli_compressor : public compressor {

+public:

+  brotli_compressor();

+  ~brotli_compressor();

+

+  bool compress(const char *data, size_t data_length, bool last,

+                Callback callback) override;

+

+private:

+  BrotliEncoderState *state_ = nullptr;

+};

+

+class brotli_decompressor : public decompressor {

+public:

+  brotli_decompressor();

+  ~brotli_decompressor();

+

+  bool is_valid() const override;

+

+  bool decompress(const char *data, size_t data_length,

+                  Callback callback) override;

+

+private:

+  BrotliDecoderResult decoder_r;

+  BrotliDecoderState *decoder_s = nullptr;

+};

+#endif

+

+// NOTE: until the read size reaches `fixed_buffer_size`, use `fixed_buffer`

+// to store data. The call can set memory on stack for performance.

+class stream_line_reader {

+public:

+  stream_line_reader(Stream &strm, char *fixed_buffer,

+                     size_t fixed_buffer_size);

+  const char *ptr() const;

+  size_t size() const;

+  bool end_with_crlf() const;

+  bool getline();

+

+private:

+  void append(char c);

+

+  Stream &strm_;

+  char *fixed_buffer_;

+  const size_t fixed_buffer_size_;

+  size_t fixed_buffer_used_size_ = 0;

+  std::string glowable_buffer_;

+};

+

+} // namespace detail

+

+// ----------------------------------------------------------------------------

+

+/*

+ * Implementation that will be part of the .cc file if split into .h + .cc.

+ */

+

+namespace detail {

+

+inline bool is_hex(char c, int &v) {

+  if (0x20 <= c && isdigit(c)) {

+    v = c - '0';

+    return true;

+  } else if ('A' <= c && c <= 'F') {

+    v = c - 'A' + 10;

+    return true;

+  } else if ('a' <= c && c <= 'f') {

+    v = c - 'a' + 10;

+    return true;

+  }

+  return false;

+}

+

+inline bool from_hex_to_i(const std::string &s, size_t i, size_t cnt,

+                          int &val) {

+  if (i >= s.size()) { return false; }

+

+  val = 0;

+  for (; cnt; i++, cnt--) {

+    if (!s[i]) { return false; }

+    int v = 0;

+    if (is_hex(s[i], v)) {

+      val = val * 16 + v;

+    } else {

+      return false;

+    }

+  }

+  return true;

+}

+

+inline std::string from_i_to_hex(size_t n) {

+  const char *charset = "0123456789abcdef";

+  std::string ret;

+  do {

+    ret = charset[n & 15] + ret;

+    n >>= 4;

+  } while (n > 0);

+  return ret;

+}

+

+inline size_t to_utf8(int code, char *buff) {

+  if (code < 0x0080) {

+    buff[0] = (code & 0x7F);

+    return 1;

+  } else if (code < 0x0800) {

+    buff[0] = static_cast<char>(0xC0 | ((code >> 6) & 0x1F));

+    buff[1] = static_cast<char>(0x80 | (code & 0x3F));

+    return 2;

+  } else if (code < 0xD800) {

+    buff[0] = static_cast<char>(0xE0 | ((code >> 12) & 0xF));

+    buff[1] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));

+    buff[2] = static_cast<char>(0x80 | (code & 0x3F));

+    return 3;

+  } else if (code < 0xE000) { // D800 - DFFF is invalid...

+    return 0;

+  } else if (code < 0x10000) {

+    buff[0] = static_cast<char>(0xE0 | ((code >> 12) & 0xF));

+    buff[1] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));

+    buff[2] = static_cast<char>(0x80 | (code & 0x3F));

+    return 3;

+  } else if (code < 0x110000) {

+    buff[0] = static_cast<char>(0xF0 | ((code >> 18) & 0x7));

+    buff[1] = static_cast<char>(0x80 | ((code >> 12) & 0x3F));

+    buff[2] = static_cast<char>(0x80 | ((code >> 6) & 0x3F));

+    buff[3] = static_cast<char>(0x80 | (code & 0x3F));

+    return 4;

+  }

+

+  // NOTREACHED

+  return 0;

+}

+

+// NOTE: This code came up with the following stackoverflow post:

+// https://stackoverflow.com/questions/180947/base64-decode-snippet-in-c

+inline std::string base64_encode(const std::string &in) {

+  static const auto lookup =

+      "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

+

+  std::string out;

+  out.reserve(in.size());

+

+  int val = 0;

+  int valb = -6;

+

+  for (auto c : in) {

+    val = (val << 8) + static_cast<uint8_t>(c);

+    valb += 8;

+    while (valb >= 0) {

+      out.push_back(lookup[(val >> valb) & 0x3F]);

+      valb -= 6;

+    }

+  }

+

+  if (valb > -6) { out.push_back(lookup[((val << 8) >> (valb + 8)) & 0x3F]); }

+

+  while (out.size() % 4) {

+    out.push_back('=');

+  }

+

+  return out;

+}

+

+inline bool is_file(const std::string &path) {

+  struct stat st;

+  return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode);

+}

+

+inline bool is_dir(const std::string &path) {

+  struct stat st;

+  return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode);

+}

+

+inline bool is_valid_path(const std::string &path) {

+  size_t level = 0;

+  size_t i = 0;

+

+  // Skip slash

+  while (i < path.size() && path[i] == '/') {

+    i++;

+  }

+

+  while (i < path.size()) {

+    // Read component

+    auto beg = i;

+    while (i < path.size() && path[i] != '/') {

+      i++;

+    }

+

+    auto len = i - beg;

+    assert(len > 0);

+

+    if (!path.compare(beg, len, ".")) {

+      ;

+    } else if (!path.compare(beg, len, "..")) {

+      if (level == 0) { return false; }

+      level--;

+    } else {

+      level++;

+    }

+

+    // Skip slash

+    while (i < path.size() && path[i] == '/') {

+      i++;

+    }

+  }

+

+  return true;

+}

+

+inline std::string encode_query_param(const std::string &value) {

+  std::ostringstream escaped;

+  escaped.fill('0');

+  escaped << std::hex;

+

+  for (auto c : value) {

+    if (std::isalnum(static_cast<uint8_t>(c)) || c == '-' || c == '_' ||

+        c == '.' || c == '!' || c == '~' || c == '*' || c == '\'' || c == '(' ||

+        c == ')') {

+      escaped << c;

+    } else {

+      escaped << std::uppercase;

+      escaped << '%' << std::setw(2)

+              << static_cast<int>(static_cast<unsigned char>(c));

+      escaped << std::nouppercase;

+    }

+  }

+

+  return escaped.str();

+}

+

+inline std::string encode_url(const std::string &s) {

+  std::string result;

+  result.reserve(s.size());

+

+  for (size_t i = 0; s[i]; i++) {

+    switch (s[i]) {

+    case ' ': result += "%20"; break;

+    case '+': result += "%2B"; break;

+    case '\r': result += "%0D"; break;

+    case '\n': result += "%0A"; break;

+    case '\'': result += "%27"; break;

+    case ',': result += "%2C"; break;

+    // case ':': result += "%3A"; break; // ok? probably...

+    case ';': result += "%3B"; break;

+    default:

+      auto c = static_cast<uint8_t>(s[i]);

+      if (c >= 0x80) {

+        result += '%';

+        char hex[4];

+        auto len = snprintf(hex, sizeof(hex) - 1, "%02X", c);

+        assert(len == 2);

+        result.append(hex, static_cast<size_t>(len));

+      } else {

+        result += s[i];

+      }

+      break;

+    }

+  }

+

+  return result;

+}

+

+inline std::string decode_url(const std::string &s,

+                              bool convert_plus_to_space) {

+  std::string result;

+

+  for (size_t i = 0; i < s.size(); i++) {

+    if (s[i] == '%' && i + 1 < s.size()) {

+      if (s[i + 1] == 'u') {

+        int val = 0;

+        if (from_hex_to_i(s, i + 2, 4, val)) {

+          // 4 digits Unicode codes

+          char buff[4];

+          size_t len = to_utf8(val, buff);

+          if (len > 0) { result.append(buff, len); }

+          i += 5; // 'u0000'

+        } else {

+          result += s[i];

+        }

+      } else {

+        int val = 0;

+        if (from_hex_to_i(s, i + 1, 2, val)) {

+          // 2 digits hex codes

+          result += static_cast<char>(val);

+          i += 2; // '00'

+        } else {

+          result += s[i];

+        }

+      }

+    } else if (convert_plus_to_space && s[i] == '+') {

+      result += ' ';

+    } else {

+      result += s[i];

+    }

+  }

+

+  return result;

+}

+

+inline void read_file(const std::string &path, std::string &out) {

+  std::ifstream fs(path, std::ios_base::binary);

+  fs.seekg(0, std::ios_base::end);

+  auto size = fs.tellg();

+  fs.seekg(0);

+  out.resize(static_cast<size_t>(size));

+  fs.read(&out[0], static_cast<std::streamsize>(size));

+}

+

+inline std::string file_extension(const std::string &path) {

+  std::smatch m;

+  static auto re = std::regex("\\.([a-zA-Z0-9]+)$");

+  if (std::regex_search(path, m, re)) { return m[1].str(); }

+  return std::string();

+}

+

+inline bool is_space_or_tab(char c) { return c == ' ' || c == '\t'; }

+

+inline std::pair<size_t, size_t> trim(const char *b, const char *e, size_t left,

+                                      size_t right) {

+  while (b + left < e && is_space_or_tab(b[left])) {

+    left++;

+  }

+  while (right > 0 && is_space_or_tab(b[right - 1])) {

+    right--;

+  }

+  return std::make_pair(left, right);

+}

+

+inline std::string trim_copy(const std::string &s) {

+  auto r = trim(s.data(), s.data() + s.size(), 0, s.size());

+  return s.substr(r.first, r.second - r.first);

+}

+

+inline void split(const char *b, const char *e, char d,

+                  std::function<void(const char *, const char *)> fn) {

+  size_t i = 0;

+  size_t beg = 0;

+

+  while (e ? (b + i < e) : (b[i] != '\0')) {

+    if (b[i] == d) {

+      auto r = trim(b, e, beg, i);

+      if (r.first < r.second) { fn(&b[r.first], &b[r.second]); }

+      beg = i + 1;

+    }

+    i++;

+  }

+

+  if (i) {

+    auto r = trim(b, e, beg, i);

+    if (r.first < r.second) { fn(&b[r.first], &b[r.second]); }

+  }

+}

+

+inline stream_line_reader::stream_line_reader(Stream &strm, char *fixed_buffer,

+                                              size_t fixed_buffer_size)

+    : strm_(strm), fixed_buffer_(fixed_buffer),

+      fixed_buffer_size_(fixed_buffer_size) {}

+

+inline const char *stream_line_reader::ptr() const {

+  if (glowable_buffer_.empty()) {

+    return fixed_buffer_;

+  } else {

+    return glowable_buffer_.data();

+  }

+}

+

+inline size_t stream_line_reader::size() const {

+  if (glowable_buffer_.empty()) {

+    return fixed_buffer_used_size_;

+  } else {

+    return glowable_buffer_.size();

+  }

+}

+

+inline bool stream_line_reader::end_with_crlf() const {

+  auto end = ptr() + size();

+  return size() >= 2 && end[-2] == '\r' && end[-1] == '\n';

+}

+

+inline bool stream_line_reader::getline() {

+  fixed_buffer_used_size_ = 0;

+  glowable_buffer_.clear();

+

+  for (size_t i = 0;; i++) {

+    char byte;

+    auto n = strm_.read(&byte, 1);

+

+    if (n < 0) {

+      return false;

+    } else if (n == 0) {

+      if (i == 0) {

+        return false;

+      } else {

+        break;

+      }

+    }

+

+    append(byte);

+

+    if (byte == '\n') { break; }

+  }

+

+  return true;

+}

+

+inline void stream_line_reader::append(char c) {

+  if (fixed_buffer_used_size_ < fixed_buffer_size_ - 1) {

+    fixed_buffer_[fixed_buffer_used_size_++] = c;

+    fixed_buffer_[fixed_buffer_used_size_] = '\0';

+  } else {

+    if (glowable_buffer_.empty()) {

+      assert(fixed_buffer_[fixed_buffer_used_size_] == '\0');

+      glowable_buffer_.assign(fixed_buffer_, fixed_buffer_used_size_);

+    }

+    glowable_buffer_ += c;

+  }

+}

+

+inline int close_socket(socket_t sock) {

+#ifdef _WIN32

+  return closesocket(sock);

+#else

+  return close(sock);

+#endif

+}

+

+template <typename T> inline ssize_t handle_EINTR(T fn) {

+  ssize_t res = false;

+  while (true) {

+    res = fn();

+    if (res < 0 && errno == EINTR) { continue; }

+    break;

+  }

+  return res;

+}

+

+inline ssize_t select_read(socket_t sock, time_t sec, time_t usec) {

+#ifdef CPPHTTPLIB_USE_POLL

+  struct pollfd pfd_read;

+  pfd_read.fd = sock;

+  pfd_read.events = POLLIN;

+

+  auto timeout = static_cast<int>(sec * 1000 + usec / 1000);

+

+  return handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); });

+#else

+#ifndef _WIN32

+  if (sock >= FD_SETSIZE) { return 1; }

+#endif

+

+  fd_set fds;

+  FD_ZERO(&fds);

+  FD_SET(sock, &fds);

+

+  timeval tv;

+  tv.tv_sec = static_cast<long>(sec);

+  tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);

+

+  return handle_EINTR([&]() {

+    return select(static_cast<int>(sock + 1), &fds, nullptr, nullptr, &tv);

+  });

+#endif

+}

+

+inline ssize_t select_write(socket_t sock, time_t sec, time_t usec) {

+#ifdef CPPHTTPLIB_USE_POLL

+  struct pollfd pfd_read;

+  pfd_read.fd = sock;

+  pfd_read.events = POLLOUT;

+

+  auto timeout = static_cast<int>(sec * 1000 + usec / 1000);

+

+  return handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); });

+#else

+#ifndef _WIN32

+  if (sock >= FD_SETSIZE) { return 1; }

+#endif

+

+  fd_set fds;

+  FD_ZERO(&fds);

+  FD_SET(sock, &fds);

+

+  timeval tv;

+  tv.tv_sec = static_cast<long>(sec);

+  tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);

+

+  return handle_EINTR([&]() {

+    return select(static_cast<int>(sock + 1), nullptr, &fds, nullptr, &tv);

+  });

+#endif

+}

+

+inline bool wait_until_socket_is_ready(socket_t sock, time_t sec, time_t usec) {

+#ifdef CPPHTTPLIB_USE_POLL

+  struct pollfd pfd_read;

+  pfd_read.fd = sock;

+  pfd_read.events = POLLIN | POLLOUT;

+

+  auto timeout = static_cast<int>(sec * 1000 + usec / 1000);

+

+  auto poll_res = handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); });

+

+  if (poll_res > 0 && pfd_read.revents & (POLLIN | POLLOUT)) {

+    int error = 0;

+    socklen_t len = sizeof(error);

+    auto res = getsockopt(sock, SOL_SOCKET, SO_ERROR,

+                          reinterpret_cast<char *>(&error), &len);

+    return res >= 0 && !error;

+  }

+  return false;

+#else

+#ifndef _WIN32

+  if (sock >= FD_SETSIZE) { return false; }

+#endif

+

+  fd_set fdsr;

+  FD_ZERO(&fdsr);

+  FD_SET(sock, &fdsr);

+

+  auto fdsw = fdsr;

+  auto fdse = fdsr;

+

+  timeval tv;

+  tv.tv_sec = static_cast<long>(sec);

+  tv.tv_usec = static_cast<decltype(tv.tv_usec)>(usec);

+

+  auto ret = handle_EINTR([&]() {

+    return select(static_cast<int>(sock + 1), &fdsr, &fdsw, &fdse, &tv);

+  });

+

+  if (ret > 0 && (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw))) {

+    int error = 0;

+    socklen_t len = sizeof(error);

+    return getsockopt(sock, SOL_SOCKET, SO_ERROR,

+                      reinterpret_cast<char *>(&error), &len) >= 0 &&

+           !error;

+  }

+  return false;

+#endif

+}

+

+class SocketStream : public Stream {

+public:

+  SocketStream(socket_t sock, time_t read_timeout_sec, time_t read_timeout_usec,

+               time_t write_timeout_sec, time_t write_timeout_usec);

+  ~SocketStream() override;

+

+  bool is_readable() const override;

+  bool is_writable() const override;

+  ssize_t read(char *ptr, size_t size) override;

+  ssize_t write(const char *ptr, size_t size) override;

+  void get_remote_ip_and_port(std::string &ip, int &port) const override;

+  socket_t socket() const override;

+

+private:

+  socket_t sock_;

+  time_t read_timeout_sec_;

+  time_t read_timeout_usec_;

+  time_t write_timeout_sec_;

+  time_t write_timeout_usec_;

+};

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+class SSLSocketStream : public Stream {

+public:

+  SSLSocketStream(socket_t sock, SSL *ssl, time_t read_timeout_sec,

+                  time_t read_timeout_usec, time_t write_timeout_sec,

+                  time_t write_timeout_usec);

+  ~SSLSocketStream() override;

+

+  bool is_readable() const override;

+  bool is_writable() const override;

+  ssize_t read(char *ptr, size_t size) override;

+  ssize_t write(const char *ptr, size_t size) override;

+  void get_remote_ip_and_port(std::string &ip, int &port) const override;

+  socket_t socket() const override;

+

+private:

+  socket_t sock_;

+  SSL *ssl_;

+  time_t read_timeout_sec_;

+  time_t read_timeout_usec_;

+  time_t write_timeout_sec_;

+  time_t write_timeout_usec_;

+};

+#endif

+

+inline bool keep_alive(socket_t sock, time_t keep_alive_timeout_sec) {

+  using namespace std::chrono;

+  auto start = steady_clock::now();

+  while (true) {

+    auto val = select_read(sock, 0, 10000);

+    if (val < 0) {

+      return false;

+    } else if (val == 0) {

+      auto current = steady_clock::now();

+      auto duration = duration_cast<milliseconds>(current - start);

+      auto timeout = keep_alive_timeout_sec * 1000;

+      if (duration.count() > timeout) { return false; }

+      std::this_thread::sleep_for(std::chrono::milliseconds(1));

+    } else {

+      return true;

+    }

+  }

+}

+

+template <typename T>

+inline bool

+process_server_socket_core(socket_t sock, size_t keep_alive_max_count,

+                           time_t keep_alive_timeout_sec, T callback) {

+  assert(keep_alive_max_count > 0);

+  auto ret = false;

+  auto count = keep_alive_max_count;

+  while (count > 0 && keep_alive(sock, keep_alive_timeout_sec)) {

+    auto close_connection = count == 1;

+    auto connection_closed = false;

+    ret = callback(close_connection, connection_closed);

+    if (!ret || connection_closed) { break; }

+    count--;

+  }

+  return ret;

+}

+

+template <typename T>

+inline bool

+process_server_socket(socket_t sock, size_t keep_alive_max_count,

+                      time_t keep_alive_timeout_sec, time_t read_timeout_sec,

+                      time_t read_timeout_usec, time_t write_timeout_sec,

+                      time_t write_timeout_usec, T callback) {

+  return process_server_socket_core(

+      sock, keep_alive_max_count, keep_alive_timeout_sec,

+      [&](bool close_connection, bool &connection_closed) {

+        SocketStream strm(sock, read_timeout_sec, read_timeout_usec,

+                          write_timeout_sec, write_timeout_usec);

+        return callback(strm, close_connection, connection_closed);

+      });

+}

+

+inline bool process_client_socket(socket_t sock, time_t read_timeout_sec,

+                                  time_t read_timeout_usec,

+                                  time_t write_timeout_sec,

+                                  time_t write_timeout_usec,

+                                  std::function<bool(Stream &)> callback) {

+  SocketStream strm(sock, read_timeout_sec, read_timeout_usec,

+                    write_timeout_sec, write_timeout_usec);

+  return callback(strm);

+}

+

+inline int shutdown_socket(socket_t sock) {

+#ifdef _WIN32

+  return shutdown(sock, SD_BOTH);

+#else

+  return shutdown(sock, SHUT_RDWR);

+#endif

+}

+

+template <typename BindOrConnect>

+socket_t create_socket(const char *host, int port, int address_family,

+                       int socket_flags, bool tcp_nodelay,

+                       SocketOptions socket_options,

+                       BindOrConnect bind_or_connect) {

+  // Get address info

+  struct addrinfo hints;

+  struct addrinfo *result;

+

+  memset(&hints, 0, sizeof(struct addrinfo));

+  hints.ai_family = address_family;

+  hints.ai_socktype = SOCK_STREAM;

+  hints.ai_flags = socket_flags;

+  hints.ai_protocol = 0;

+

+  auto service = std::to_string(port);

+

+  if (getaddrinfo(host, service.c_str(), &hints, &result)) {

+#ifdef __linux__

+    res_init();

+#endif

+    return INVALID_SOCKET;

+  }

+

+  for (auto rp = result; rp; rp = rp->ai_next) {

+    // Create a socket

+#ifdef _WIN32

+    auto sock =

+        WSASocketW(rp->ai_family, rp->ai_socktype, rp->ai_protocol, nullptr, 0,

+                   WSA_FLAG_NO_HANDLE_INHERIT | WSA_FLAG_OVERLAPPED);

+    /**

+     * Since the WSA_FLAG_NO_HANDLE_INHERIT is only supported on Windows 7 SP1

+     * and above the socket creation fails on older Windows Systems.

+     *

+     * Let's try to create a socket the old way in this case.

+     *

+     * Reference:

+     * https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsasocketa

+     *

+     * WSA_FLAG_NO_HANDLE_INHERIT:

+     * This flag is supported on Windows 7 with SP1, Windows Server 2008 R2 with

+     * SP1, and later

+     *

+     */

+    if (sock == INVALID_SOCKET) {

+      sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);

+    }

+#else

+    auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);

+#endif

+    if (sock == INVALID_SOCKET) { continue; }

+

+#ifndef _WIN32

+    if (fcntl(sock, F_SETFD, FD_CLOEXEC) == -1) { continue; }

+#endif

+

+    if (tcp_nodelay) {

+      int yes = 1;

+      setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<char *>(&yes),

+                 sizeof(yes));

+    }

+

+    if (socket_options) { socket_options(sock); }

+

+    if (rp->ai_family == AF_INET6) {

+      int no = 0;

+      setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, reinterpret_cast<char *>(&no),

+                 sizeof(no));

+    }

+

+    // bind or connect

+    if (bind_or_connect(sock, *rp)) {

+      freeaddrinfo(result);

+      return sock;

+    }

+

+    close_socket(sock);

+  }

+

+  freeaddrinfo(result);

+  return INVALID_SOCKET;

+}

+

+inline void set_nonblocking(socket_t sock, bool nonblocking) {

+#ifdef _WIN32

+  auto flags = nonblocking ? 1UL : 0UL;

+  ioctlsocket(sock, FIONBIO, &flags);

+#else

+  auto flags = fcntl(sock, F_GETFL, 0);

+  fcntl(sock, F_SETFL,

+        nonblocking ? (flags | O_NONBLOCK) : (flags & (~O_NONBLOCK)));

+#endif

+}

+

+inline bool is_connection_error() {

+#ifdef _WIN32

+  return WSAGetLastError() != WSAEWOULDBLOCK;

+#else

+  return errno != EINPROGRESS;

+#endif

+}

+

+inline bool bind_ip_address(socket_t sock, const char *host) {

+  struct addrinfo hints;

+  struct addrinfo *result;

+

+  memset(&hints, 0, sizeof(struct addrinfo));

+  hints.ai_family = AF_UNSPEC;

+  hints.ai_socktype = SOCK_STREAM;

+  hints.ai_protocol = 0;

+

+  if (getaddrinfo(host, "0", &hints, &result)) { return false; }

+

+  auto ret = false;

+  for (auto rp = result; rp; rp = rp->ai_next) {

+    const auto &ai = *rp;

+    if (!::bind(sock, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen))) {

+      ret = true;

+      break;

+    }

+  }

+

+  freeaddrinfo(result);

+  return ret;

+}

+

+#if !defined _WIN32 && !defined ANDROID

+#define USE_IF2IP

+#endif

+

+#ifdef USE_IF2IP

+inline std::string if2ip(const std::string &ifn) {

+  struct ifaddrs *ifap;

+  getifaddrs(&ifap);

+  for (auto ifa = ifap; ifa; ifa = ifa->ifa_next) {

+    if (ifa->ifa_addr && ifn == ifa->ifa_name) {

+      if (ifa->ifa_addr->sa_family == AF_INET) {

+        auto sa = reinterpret_cast<struct sockaddr_in *>(ifa->ifa_addr);

+        char buf[INET_ADDRSTRLEN];

+        if (inet_ntop(AF_INET, &sa->sin_addr, buf, INET_ADDRSTRLEN)) {

+          freeifaddrs(ifap);

+          return std::string(buf, INET_ADDRSTRLEN);

+        }

+      }

+    }

+  }

+  freeifaddrs(ifap);

+  return std::string();

+}

+#endif

+

+inline socket_t create_client_socket(

+    const char *host, int port, int address_family, bool tcp_nodelay,

+    SocketOptions socket_options, time_t connection_timeout_sec,

+    time_t connection_timeout_usec, time_t read_timeout_sec,

+    time_t read_timeout_usec, time_t write_timeout_sec,

+    time_t write_timeout_usec, const std::string &intf, Error &error) {

+  auto sock = create_socket(

+      host, port, address_family, 0, tcp_nodelay, std::move(socket_options),

+      [&](socket_t sock2, struct addrinfo &ai) -> bool {

+        if (!intf.empty()) {

+#ifdef USE_IF2IP

+          auto ip = if2ip(intf);

+          if (ip.empty()) { ip = intf; }

+          if (!bind_ip_address(sock2, ip.c_str())) {

+            error = Error::BindIPAddress;

+            return false;

+          }

+#endif

+        }

+

+        set_nonblocking(sock2, true);

+

+        auto ret =

+            ::connect(sock2, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen));

+

+        if (ret < 0) {

+          if (is_connection_error() ||

+              !wait_until_socket_is_ready(sock2, connection_timeout_sec,

+                                          connection_timeout_usec)) {

+            error = Error::Connection;

+            return false;

+          }

+        }

+

+        set_nonblocking(sock2, false);

+

+        {

+          timeval tv;

+          tv.tv_sec = static_cast<long>(read_timeout_sec);

+          tv.tv_usec = static_cast<decltype(tv.tv_usec)>(read_timeout_usec);

+          setsockopt(sock2, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv));

+        }

+        {

+          timeval tv;

+          tv.tv_sec = static_cast<long>(write_timeout_sec);

+          tv.tv_usec = static_cast<decltype(tv.tv_usec)>(write_timeout_usec);

+          setsockopt(sock2, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv));

+        }

+

+        error = Error::Success;

+        return true;

+      });

+

+  if (sock != INVALID_SOCKET) {

+    error = Error::Success;

+  } else {

+    if (error == Error::Success) { error = Error::Connection; }

+  }

+

+  return sock;

+}

+

+inline void get_remote_ip_and_port(const struct sockaddr_storage &addr,

+                                   socklen_t addr_len, std::string &ip,

+                                   int &port) {

+  if (addr.ss_family == AF_INET) {

+    port = ntohs(reinterpret_cast<const struct sockaddr_in *>(&addr)->sin_port);

+  } else if (addr.ss_family == AF_INET6) {

+    port =

+        ntohs(reinterpret_cast<const struct sockaddr_in6 *>(&addr)->sin6_port);

+  }

+

+  std::array<char, NI_MAXHOST> ipstr{};

+  if (!getnameinfo(reinterpret_cast<const struct sockaddr *>(&addr), addr_len,

+                   ipstr.data(), static_cast<socklen_t>(ipstr.size()), nullptr,

+                   0, NI_NUMERICHOST)) {

+    ip = ipstr.data();

+  }

+}

+

+inline void get_remote_ip_and_port(socket_t sock, std::string &ip, int &port) {

+  struct sockaddr_storage addr;

+  socklen_t addr_len = sizeof(addr);

+

+  if (!getpeername(sock, reinterpret_cast<struct sockaddr *>(&addr),

+                   &addr_len)) {

+    get_remote_ip_and_port(addr, addr_len, ip, port);

+  }

+}

+

+inline constexpr unsigned int str2tag_core(const char *s, size_t l,

+                                           unsigned int h) {

+  return (l == 0) ? h

+                  : str2tag_core(s + 1, l - 1,

+                                 (h * 33) ^ static_cast<unsigned char>(*s));

+}

+

+inline unsigned int str2tag(const std::string &s) {

+  return str2tag_core(s.data(), s.size(), 0);

+}

+

+namespace udl {

+

+inline constexpr unsigned int operator"" _t(const char *s, size_t l) {

+  return str2tag_core(s, l, 0);

+}

+

+} // namespace udl

+

+inline const char *

+find_content_type(const std::string &path,

+                  const std::map<std::string, std::string> &user_data) {

+  auto ext = file_extension(path);

+

+  auto it = user_data.find(ext);

+  if (it != user_data.end()) { return it->second.c_str(); }

+

+  using udl::operator""_t;

+

+  switch (str2tag(ext)) {

+  default: return nullptr;

+  case "css"_t: return "text/css";

+  case "csv"_t: return "text/csv";

+  case "txt"_t: return "text/plain";

+  case "vtt"_t: return "text/vtt";

+  case "htm"_t:

+  case "html"_t: return "text/html";

+

+  case "apng"_t: return "image/apng";

+  case "avif"_t: return "image/avif";

+  case "bmp"_t: return "image/bmp";

+  case "gif"_t: return "image/gif";

+  case "png"_t: return "image/png";

+  case "svg"_t: return "image/svg+xml";

+  case "webp"_t: return "image/webp";

+  case "ico"_t: return "image/x-icon";

+  case "tif"_t: return "image/tiff";

+  case "tiff"_t: return "image/tiff";

+  case "jpg"_t:

+  case "jpeg"_t: return "image/jpeg";

+

+  case "mp4"_t: return "video/mp4";

+  case "mpeg"_t: return "video/mpeg";

+  case "webm"_t: return "video/webm";

+

+  case "mp3"_t: return "audio/mp3";

+  case "mpga"_t: return "audio/mpeg";

+  case "weba"_t: return "audio/webm";

+  case "wav"_t: return "audio/wave";

+

+  case "otf"_t: return "font/otf";

+  case "ttf"_t: return "font/ttf";

+  case "woff"_t: return "font/woff";

+  case "woff2"_t: return "font/woff2";

+

+  case "7z"_t: return "application/x-7z-compressed";

+  case "atom"_t: return "application/atom+xml";

+  case "pdf"_t: return "application/pdf";

+  case "js"_t:

+  case "mjs"_t: return "application/javascript";

+  case "json"_t: return "application/json";

+  case "rss"_t: return "application/rss+xml";

+  case "tar"_t: return "application/x-tar";

+  case "xht"_t:

+  case "xhtml"_t: return "application/xhtml+xml";

+  case "xslt"_t: return "application/xslt+xml";

+  case "xml"_t: return "application/xml";

+  case "gz"_t: return "application/gzip";

+  case "zip"_t: return "application/zip";

+  case "wasm"_t: return "application/wasm";

+  }

+}

+

+inline const char *status_message(int status) {

+  switch (status) {

+  case 100: return "Continue";

+  case 101: return "Switching Protocol";

+  case 102: return "Processing";

+  case 103: return "Early Hints";

+  case 200: return "OK";

+  case 201: return "Created";

+  case 202: return "Accepted";

+  case 203: return "Non-Authoritative Information";

+  case 204: return "No Content";

+  case 205: return "Reset Content";

+  case 206: return "Partial Content";

+  case 207: return "Multi-Status";

+  case 208: return "Already Reported";

+  case 226: return "IM Used";

+  case 300: return "Multiple Choice";

+  case 301: return "Moved Permanently";

+  case 302: return "Found";

+  case 303: return "See Other";

+  case 304: return "Not Modified";

+  case 305: return "Use Proxy";

+  case 306: return "unused";

+  case 307: return "Temporary Redirect";

+  case 308: return "Permanent Redirect";

+  case 400: return "Bad Request";

+  case 401: return "Unauthorized";

+  case 402: return "Payment Required";

+  case 403: return "Forbidden";

+  case 404: return "Not Found";

+  case 405: return "Method Not Allowed";

+  case 406: return "Not Acceptable";

+  case 407: return "Proxy Authentication Required";

+  case 408: return "Request Timeout";

+  case 409: return "Conflict";

+  case 410: return "Gone";

+  case 411: return "Length Required";

+  case 412: return "Precondition Failed";

+  case 413: return "Payload Too Large";

+  case 414: return "URI Too Long";

+  case 415: return "Unsupported Media Type";

+  case 416: return "Range Not Satisfiable";

+  case 417: return "Expectation Failed";

+  case 418: return "I'm a teapot";

+  case 421: return "Misdirected Request";

+  case 422: return "Unprocessable Entity";

+  case 423: return "Locked";

+  case 424: return "Failed Dependency";

+  case 425: return "Too Early";

+  case 426: return "Upgrade Required";

+  case 428: return "Precondition Required";

+  case 429: return "Too Many Requests";

+  case 431: return "Request Header Fields Too Large";

+  case 451: return "Unavailable For Legal Reasons";

+  case 501: return "Not Implemented";

+  case 502: return "Bad Gateway";

+  case 503: return "Service Unavailable";

+  case 504: return "Gateway Timeout";

+  case 505: return "HTTP Version Not Supported";

+  case 506: return "Variant Also Negotiates";

+  case 507: return "Insufficient Storage";

+  case 508: return "Loop Detected";

+  case 510: return "Not Extended";

+  case 511: return "Network Authentication Required";

+

+  default:

+  case 500: return "Internal Server Error";

+  }

+}

+

+inline bool can_compress_content_type(const std::string &content_type) {

+  return (!content_type.find("text/") && content_type != "text/event-stream") ||

+         content_type == "image/svg+xml" ||

+         content_type == "application/javascript" ||

+         content_type == "application/json" ||

+         content_type == "application/xml" ||

+         content_type == "application/xhtml+xml";

+}

+

+inline EncodingType encoding_type(const Request &req, const Response &res) {

+  auto ret =

+      detail::can_compress_content_type(res.get_header_value("Content-Type"));

+  if (!ret) { return EncodingType::None; }

+

+  const auto &s = req.get_header_value("Accept-Encoding");

+  (void)(s);

+

+#ifdef CPPHTTPLIB_BROTLI_SUPPORT

+  // TODO: 'Accept-Encoding' has br, not br;q=0

+  ret = s.find("br") != std::string::npos;

+  if (ret) { return EncodingType::Brotli; }

+#endif

+

+#ifdef CPPHTTPLIB_ZLIB_SUPPORT

+  // TODO: 'Accept-Encoding' has gzip, not gzip;q=0

+  ret = s.find("gzip") != std::string::npos;

+  if (ret) { return EncodingType::Gzip; }

+#endif

+

+  return EncodingType::None;

+}

+

+inline bool nocompressor::compress(const char *data, size_t data_length,

+                                   bool /*last*/, Callback callback) {

+  if (!data_length) { return true; }

+  return callback(data, data_length);

+}

+

+#ifdef CPPHTTPLIB_ZLIB_SUPPORT

+inline gzip_compressor::gzip_compressor() {

+  std::memset(&strm_, 0, sizeof(strm_));

+  strm_.zalloc = Z_NULL;

+  strm_.zfree = Z_NULL;

+  strm_.opaque = Z_NULL;

+

+  is_valid_ = deflateInit2(&strm_, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8,

+                           Z_DEFAULT_STRATEGY) == Z_OK;

+}

+

+inline gzip_compressor::~gzip_compressor() { deflateEnd(&strm_); }

+

+inline bool gzip_compressor::compress(const char *data, size_t data_length,

+                                      bool last, Callback callback) {

+  assert(is_valid_);

+

+  do {

+    constexpr size_t max_avail_in =

+        std::numeric_limits<decltype(strm_.avail_in)>::max();

+

+    strm_.avail_in = static_cast<decltype(strm_.avail_in)>(

+        std::min(data_length, max_avail_in));

+    strm_.next_in = const_cast<Bytef *>(reinterpret_cast<const Bytef *>(data));

+

+    data_length -= strm_.avail_in;

+    data += strm_.avail_in;

+

+    auto flush = (last && data_length == 0) ? Z_FINISH : Z_NO_FLUSH;

+    int ret = Z_OK;

+

+    std::array<char, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};

+    do {

+      strm_.avail_out = static_cast<uInt>(buff.size());

+      strm_.next_out = reinterpret_cast<Bytef *>(buff.data());

+

+      ret = deflate(&strm_, flush);

+      if (ret == Z_STREAM_ERROR) { return false; }

+

+      if (!callback(buff.data(), buff.size() - strm_.avail_out)) {

+        return false;

+      }

+    } while (strm_.avail_out == 0);

+

+    assert((flush == Z_FINISH && ret == Z_STREAM_END) ||

+           (flush == Z_NO_FLUSH && ret == Z_OK));

+    assert(strm_.avail_in == 0);

+

+  } while (data_length > 0);

+

+  return true;

+}

+

+inline gzip_decompressor::gzip_decompressor() {

+  std::memset(&strm_, 0, sizeof(strm_));

+  strm_.zalloc = Z_NULL;

+  strm_.zfree = Z_NULL;

+  strm_.opaque = Z_NULL;

+

+  // 15 is the value of wbits, which should be at the maximum possible value

+  // to ensure that any gzip stream can be decoded. The offset of 32 specifies

+  // that the stream type should be automatically detected either gzip or

+  // deflate.

+  is_valid_ = inflateInit2(&strm_, 32 + 15) == Z_OK;

+}

+

+inline gzip_decompressor::~gzip_decompressor() { inflateEnd(&strm_); }

+

+inline bool gzip_decompressor::is_valid() const { return is_valid_; }

+

+inline bool gzip_decompressor::decompress(const char *data, size_t data_length,

+                                          Callback callback) {

+  assert(is_valid_);

+

+  int ret = Z_OK;

+

+  do {

+    constexpr size_t max_avail_in =

+        std::numeric_limits<decltype(strm_.avail_in)>::max();

+

+    strm_.avail_in = static_cast<decltype(strm_.avail_in)>(

+        std::min(data_length, max_avail_in));

+    strm_.next_in = const_cast<Bytef *>(reinterpret_cast<const Bytef *>(data));

+

+    data_length -= strm_.avail_in;

+    data += strm_.avail_in;

+

+    std::array<char, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};

+    while (strm_.avail_in > 0) {

+      strm_.avail_out = static_cast<uInt>(buff.size());

+      strm_.next_out = reinterpret_cast<Bytef *>(buff.data());

+

+      ret = inflate(&strm_, Z_NO_FLUSH);

+      assert(ret != Z_STREAM_ERROR);

+      switch (ret) {

+      case Z_NEED_DICT:

+      case Z_DATA_ERROR:

+      case Z_MEM_ERROR: inflateEnd(&strm_); return false;

+      }

+

+      if (!callback(buff.data(), buff.size() - strm_.avail_out)) {

+        return false;

+      }

+    }

+

+    if (ret != Z_OK && ret != Z_STREAM_END) return false;

+

+  } while (data_length > 0);

+

+  return true;

+}

+#endif

+

+#ifdef CPPHTTPLIB_BROTLI_SUPPORT

+inline brotli_compressor::brotli_compressor() {

+  state_ = BrotliEncoderCreateInstance(nullptr, nullptr, nullptr);

+}

+

+inline brotli_compressor::~brotli_compressor() {

+  BrotliEncoderDestroyInstance(state_);

+}

+

+inline bool brotli_compressor::compress(const char *data, size_t data_length,

+                                        bool last, Callback callback) {

+  std::array<uint8_t, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};

+

+  auto operation = last ? BROTLI_OPERATION_FINISH : BROTLI_OPERATION_PROCESS;

+  auto available_in = data_length;

+  auto next_in = reinterpret_cast<const uint8_t *>(data);

+

+  for (;;) {

+    if (last) {

+      if (BrotliEncoderIsFinished(state_)) { break; }

+    } else {

+      if (!available_in) { break; }

+    }

+

+    auto available_out = buff.size();

+    auto next_out = buff.data();

+

+    if (!BrotliEncoderCompressStream(state_, operation, &available_in, &next_in,

+                                     &available_out, &next_out, nullptr)) {

+      return false;

+    }

+

+    auto output_bytes = buff.size() - available_out;

+    if (output_bytes) {

+      callback(reinterpret_cast<const char *>(buff.data()), output_bytes);

+    }

+  }

+

+  return true;

+}

+

+inline brotli_decompressor::brotli_decompressor() {

+  decoder_s = BrotliDecoderCreateInstance(0, 0, 0);

+  decoder_r = decoder_s ? BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT

+                        : BROTLI_DECODER_RESULT_ERROR;

+}

+

+inline brotli_decompressor::~brotli_decompressor() {

+  if (decoder_s) { BrotliDecoderDestroyInstance(decoder_s); }

+}

+

+inline bool brotli_decompressor::is_valid() const { return decoder_s; }

+

+inline bool brotli_decompressor::decompress(const char *data,

+                                            size_t data_length,

+                                            Callback callback) {

+  if (decoder_r == BROTLI_DECODER_RESULT_SUCCESS ||

+      decoder_r == BROTLI_DECODER_RESULT_ERROR) {

+    return 0;

+  }

+

+  const uint8_t *next_in = (const uint8_t *)data;

+  size_t avail_in = data_length;

+  size_t total_out;

+

+  decoder_r = BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT;

+

+  std::array<char, CPPHTTPLIB_COMPRESSION_BUFSIZ> buff{};

+  while (decoder_r == BROTLI_DECODER_RESULT_NEEDS_MORE_OUTPUT) {

+    char *next_out = buff.data();

+    size_t avail_out = buff.size();

+

+    decoder_r = BrotliDecoderDecompressStream(

+        decoder_s, &avail_in, &next_in, &avail_out,

+        reinterpret_cast<uint8_t **>(&next_out), &total_out);

+

+    if (decoder_r == BROTLI_DECODER_RESULT_ERROR) { return false; }

+

+    if (!callback(buff.data(), buff.size() - avail_out)) { return false; }

+  }

+

+  return decoder_r == BROTLI_DECODER_RESULT_SUCCESS ||

+         decoder_r == BROTLI_DECODER_RESULT_NEEDS_MORE_INPUT;

+}

+#endif

+

+inline bool has_header(const Headers &headers, const char *key) {

+  return headers.find(key) != headers.end();

+}

+

+inline const char *get_header_value(const Headers &headers, const char *key,

+                                    size_t id, const char *def) {

+  auto rng = headers.equal_range(key);

+  auto it = rng.first;

+  std::advance(it, static_cast<ssize_t>(id));

+  if (it != rng.second) { return it->second.c_str(); }

+  return def;

+}

+

+template <typename T>

+inline bool parse_header(const char *beg, const char *end, T fn) {

+  // Skip trailing spaces and tabs.

+  while (beg < end && is_space_or_tab(end[-1])) {

+    end--;

+  }

+

+  auto p = beg;

+  while (p < end && *p != ':') {

+    p++;

+  }

+

+  if (p == end) { return false; }

+

+  auto key_end = p;

+

+  if (*p++ != ':') { return false; }

+

+  while (p < end && is_space_or_tab(*p)) {

+    p++;

+  }

+

+  if (p < end) {

+    fn(std::string(beg, key_end), decode_url(std::string(p, end), false));

+    return true;

+  }

+

+  return false;

+}

+

+inline bool read_headers(Stream &strm, Headers &headers) {

+  const auto bufsiz = 2048;

+  char buf[bufsiz];

+  stream_line_reader line_reader(strm, buf, bufsiz);

+

+  for (;;) {

+    if (!line_reader.getline()) { return false; }

+

+    // Check if the line ends with CRLF.

+    if (line_reader.end_with_crlf()) {

+      // Blank line indicates end of headers.

+      if (line_reader.size() == 2) { break; }

+    } else {

+      continue; // Skip invalid line.

+    }

+

+    // Exclude CRLF

+    auto end = line_reader.ptr() + line_reader.size() - 2;

+

+    parse_header(line_reader.ptr(), end,

+                 [&](std::string &&key, std::string &&val) {

+                   headers.emplace(std::move(key), std::move(val));

+                 });

+  }

+

+  return true;

+}

+

+inline bool read_content_with_length(Stream &strm, uint64_t len,

+                                     Progress progress,

+                                     ContentReceiverWithProgress out) {

+  char buf[CPPHTTPLIB_RECV_BUFSIZ];

+

+  uint64_t r = 0;

+  while (r < len) {

+    auto read_len = static_cast<size_t>(len - r);

+    auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ));

+    if (n <= 0) { return false; }

+

+    if (!out(buf, static_cast<size_t>(n), r, len)) { return false; }

+    r += static_cast<uint64_t>(n);

+

+    if (progress) {

+      if (!progress(r, len)) { return false; }

+    }

+  }

+

+  return true;

+}

+

+inline void skip_content_with_length(Stream &strm, uint64_t len) {

+  char buf[CPPHTTPLIB_RECV_BUFSIZ];

+  uint64_t r = 0;

+  while (r < len) {

+    auto read_len = static_cast<size_t>(len - r);

+    auto n = strm.read(buf, (std::min)(read_len, CPPHTTPLIB_RECV_BUFSIZ));

+    if (n <= 0) { return; }

+    r += static_cast<uint64_t>(n);

+  }

+}

+

+inline bool read_content_without_length(Stream &strm,

+                                        ContentReceiverWithProgress out) {

+  char buf[CPPHTTPLIB_RECV_BUFSIZ];

+  uint64_t r = 0;

+  for (;;) {

+    auto n = strm.read(buf, CPPHTTPLIB_RECV_BUFSIZ);

+    if (n < 0) {

+      return false;

+    } else if (n == 0) {

+      return true;

+    }

+

+    if (!out(buf, static_cast<size_t>(n), r, 0)) { return false; }

+    r += static_cast<uint64_t>(n);

+  }

+

+  return true;

+}

+

+inline bool read_content_chunked(Stream &strm,

+                                 ContentReceiverWithProgress out) {

+  const auto bufsiz = 16;

+  char buf[bufsiz];

+

+  stream_line_reader line_reader(strm, buf, bufsiz);

+

+  if (!line_reader.getline()) { return false; }

+

+  unsigned long chunk_len;

+  while (true) {

+    char *end_ptr;

+

+    chunk_len = std::strtoul(line_reader.ptr(), &end_ptr, 16);

+

+    if (end_ptr == line_reader.ptr()) { return false; }

+    if (chunk_len == ULONG_MAX) { return false; }

+

+    if (chunk_len == 0) { break; }

+

+    if (!read_content_with_length(strm, chunk_len, nullptr, out)) {

+      return false;

+    }

+

+    if (!line_reader.getline()) { return false; }

+

+    if (strcmp(line_reader.ptr(), "\r\n")) { break; }

+

+    if (!line_reader.getline()) { return false; }

+  }

+

+  if (chunk_len == 0) {

+    // Reader terminator after chunks

+    if (!line_reader.getline() || strcmp(line_reader.ptr(), "\r\n"))

+      return false;

+  }

+

+  return true;

+}

+

+inline bool is_chunked_transfer_encoding(const Headers &headers) {

+  return !strcasecmp(get_header_value(headers, "Transfer-Encoding", 0, ""),

+                     "chunked");

+}

+

+template <typename T, typename U>

+bool prepare_content_receiver(T &x, int &status,

+                              ContentReceiverWithProgress receiver,

+                              bool decompress, U callback) {

+  if (decompress) {

+    std::string encoding = x.get_header_value("Content-Encoding");

+    std::unique_ptr<decompressor> decompressor;

+

+    if (encoding.find("gzip") != std::string::npos ||

+        encoding.find("deflate") != std::string::npos) {

+#ifdef CPPHTTPLIB_ZLIB_SUPPORT

+      decompressor = detail::make_unique<gzip_decompressor>();

+#else

+      status = 415;

+      return false;

+#endif

+    } else if (encoding.find("br") != std::string::npos) {

+#ifdef CPPHTTPLIB_BROTLI_SUPPORT

+      decompressor = detail::make_unique<brotli_decompressor>();

+#else

+      status = 415;

+      return false;

+#endif

+    }

+

+    if (decompressor) {

+      if (decompressor->is_valid()) {

+        ContentReceiverWithProgress out = [&](const char *buf, size_t n,

+                                              uint64_t off, uint64_t len) {

+          return decompressor->decompress(buf, n,

+                                          [&](const char *buf2, size_t n2) {

+                                            return receiver(buf2, n2, off, len);

+                                          });

+        };

+        return callback(std::move(out));

+      } else {

+        status = 500;

+        return false;

+      }

+    }

+  }

+

+  ContentReceiverWithProgress out = [&](const char *buf, size_t n, uint64_t off,

+                                        uint64_t len) {

+    return receiver(buf, n, off, len);

+  };

+  return callback(std::move(out));

+}

+

+template <typename T>

+bool read_content(Stream &strm, T &x, size_t payload_max_length, int &status,

+                  Progress progress, ContentReceiverWithProgress receiver,

+                  bool decompress) {

+  return prepare_content_receiver(

+      x, status, std::move(receiver), decompress,

+      [&](const ContentReceiverWithProgress &out) {

+        auto ret = true;

+        auto exceed_payload_max_length = false;

+

+        if (is_chunked_transfer_encoding(x.headers)) {

+          ret = read_content_chunked(strm, out);

+        } else if (!has_header(x.headers, "Content-Length")) {

+          ret = read_content_without_length(strm, out);

+        } else {

+          auto len = get_header_value<uint64_t>(x.headers, "Content-Length");

+          if (len > payload_max_length) {

+            exceed_payload_max_length = true;

+            skip_content_with_length(strm, len);

+            ret = false;

+          } else if (len > 0) {

+            ret = read_content_with_length(strm, len, std::move(progress), out);

+          }

+        }

+

+        if (!ret) { status = exceed_payload_max_length ? 413 : 400; }

+        return ret;

+      });

+}

+

+inline ssize_t write_headers(Stream &strm, const Headers &headers) {

+  ssize_t write_len = 0;

+  for (const auto &x : headers) {

+    auto len =

+        strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str());

+    if (len < 0) { return len; }

+    write_len += len;

+  }

+  auto len = strm.write("\r\n");

+  if (len < 0) { return len; }

+  write_len += len;

+  return write_len;

+}

+

+inline bool write_data(Stream &strm, const char *d, size_t l) {

+  size_t offset = 0;

+  while (offset < l) {

+    auto length = strm.write(d + offset, l - offset);

+    if (length < 0) { return false; }

+    offset += static_cast<size_t>(length);

+  }

+  return true;

+}

+

+template <typename T>

+inline bool write_content(Stream &strm, const ContentProvider &content_provider,

+                          size_t offset, size_t length, T is_shutting_down,

+                          Error &error) {

+  size_t end_offset = offset + length;

+  auto ok = true;

+  DataSink data_sink;

+

+  data_sink.write = [&](const char *d, size_t l) -> bool {

+    if (ok) {

+      if (write_data(strm, d, l)) {

+        offset += l;

+      } else {

+        ok = false;

+      }

+    }

+    return ok;

+  };

+

+  data_sink.is_writable = [&](void) { return ok && strm.is_writable(); };

+

+  while (offset < end_offset && !is_shutting_down()) {

+    if (!content_provider(offset, end_offset - offset, data_sink)) {

+      error = Error::Canceled;

+      return false;

+    }

+    if (!ok) {

+      error = Error::Write;

+      return false;

+    }

+  }

+

+  error = Error::Success;

+  return true;

+}

+

+template <typename T>

+inline bool write_content(Stream &strm, const ContentProvider &content_provider,

+                          size_t offset, size_t length,

+                          const T &is_shutting_down) {

+  auto error = Error::Success;

+  return write_content(strm, content_provider, offset, length, is_shutting_down,

+                       error);

+}

+

+template <typename T>

+inline bool

+write_content_without_length(Stream &strm,

+                             const ContentProvider &content_provider,

+                             const T &is_shutting_down) {

+  size_t offset = 0;

+  auto data_available = true;

+  auto ok = true;

+  DataSink data_sink;

+

+  data_sink.write = [&](const char *d, size_t l) -> bool {

+    if (ok) {

+      offset += l;

+      if (!write_data(strm, d, l)) { ok = false; }

+    }

+    return ok;

+  };

+

+  data_sink.done = [&](void) { data_available = false; };

+

+  data_sink.is_writable = [&](void) { return ok && strm.is_writable(); };

+

+  while (data_available && !is_shutting_down()) {

+    if (!content_provider(offset, 0, data_sink)) { return false; }

+    if (!ok) { return false; }

+  }

+  return true;

+}

+

+template <typename T, typename U>

+inline bool

+write_content_chunked(Stream &strm, const ContentProvider &content_provider,

+                      const T &is_shutting_down, U &compressor, Error &error) {

+  size_t offset = 0;

+  auto data_available = true;

+  auto ok = true;

+  DataSink data_sink;

+

+  data_sink.write = [&](const char *d, size_t l) -> bool {

+    if (ok) {

+      data_available = l > 0;

+      offset += l;

+

+      std::string payload;

+      if (compressor.compress(d, l, false,

+                              [&](const char *data, size_t data_len) {

+                                payload.append(data, data_len);

+                                return true;

+                              })) {

+        if (!payload.empty()) {

+          // Emit chunked response header and footer for each chunk

+          auto chunk =

+              from_i_to_hex(payload.size()) + "\r\n" + payload + "\r\n";

+          if (!write_data(strm, chunk.data(), chunk.size())) { ok = false; }

+        }

+      } else {

+        ok = false;

+      }

+    }

+    return ok;

+  };

+

+  data_sink.done = [&](void) {

+    if (!ok) { return; }

+

+    data_available = false;

+

+    std::string payload;

+    if (!compressor.compress(nullptr, 0, true,

+                             [&](const char *data, size_t data_len) {

+                               payload.append(data, data_len);

+                               return true;

+                             })) {

+      ok = false;

+      return;

+    }

+

+    if (!payload.empty()) {

+      // Emit chunked response header and footer for each chunk

+      auto chunk = from_i_to_hex(payload.size()) + "\r\n" + payload + "\r\n";

+      if (!write_data(strm, chunk.data(), chunk.size())) {

+        ok = false;

+        return;

+      }

+    }

+

+    static const std::string done_marker("0\r\n\r\n");

+    if (!write_data(strm, done_marker.data(), done_marker.size())) {

+      ok = false;

+    }

+  };

+

+  data_sink.is_writable = [&](void) { return ok && strm.is_writable(); };

+

+  while (data_available && !is_shutting_down()) {

+    if (!content_provider(offset, 0, data_sink)) {

+      error = Error::Canceled;

+      return false;

+    }

+    if (!ok) {

+      error = Error::Write;

+      return false;

+    }

+  }

+

+  error = Error::Success;

+  return true;

+}

+

+template <typename T, typename U>

+inline bool write_content_chunked(Stream &strm,

+                                  const ContentProvider &content_provider,

+                                  const T &is_shutting_down, U &compressor) {

+  auto error = Error::Success;

+  return write_content_chunked(strm, content_provider, is_shutting_down,

+                               compressor, error);

+}

+

+template <typename T>

+inline bool redirect(T &cli, Request &req, Response &res,

+                     const std::string &path, const std::string &location,

+                     Error &error) {

+  Request new_req = req;

+  new_req.path = path;

+  new_req.redirect_count_ -= 1;

+

+  if (res.status == 303 && (req.method != "GET" && req.method != "HEAD")) {

+    new_req.method = "GET";

+    new_req.body.clear();

+    new_req.headers.clear();

+  }

+

+  Response new_res;

+

+  auto ret = cli.send(new_req, new_res, error);

+  if (ret) {

+    req = new_req;

+    res = new_res;

+    res.location = location;

+  }

+  return ret;

+}

+

+inline std::string params_to_query_str(const Params &params) {

+  std::string query;

+

+  for (auto it = params.begin(); it != params.end(); ++it) {

+    if (it != params.begin()) { query += "&"; }

+    query += it->first;

+    query += "=";

+    query += encode_query_param(it->second);

+  }

+  return query;

+}

+

+inline std::string append_query_params(const char *path, const Params &params) {

+  std::string path_with_query = path;

+  const static std::regex re("[^?]+\\?.*");

+  auto delm = std::regex_match(path, re) ? '&' : '?';

+  path_with_query += delm + params_to_query_str(params);

+  return path_with_query;

+}

+

+inline void parse_query_text(const std::string &s, Params &params) {

+  std::set<std::string> cache;

+  split(s.data(), s.data() + s.size(), '&', [&](const char *b, const char *e) {

+    std::string kv(b, e);

+    if (cache.find(kv) != cache.end()) { return; }

+    cache.insert(kv);

+

+    std::string key;

+    std::string val;

+    split(b, e, '=', [&](const char *b2, const char *e2) {

+      if (key.empty()) {

+        key.assign(b2, e2);

+      } else {

+        val.assign(b2, e2);

+      }

+    });

+

+    if (!key.empty()) {

+      params.emplace(decode_url(key, true), decode_url(val, true));

+    }

+  });

+}

+

+inline bool parse_multipart_boundary(const std::string &content_type,

+                                     std::string &boundary) {

+  auto pos = content_type.find("boundary=");

+  if (pos == std::string::npos) { return false; }

+  boundary = content_type.substr(pos + 9);

+  if (boundary.length() >= 2 && boundary.front() == '"' &&

+      boundary.back() == '"') {

+    boundary = boundary.substr(1, boundary.size() - 2);

+  }

+  return !boundary.empty();

+}

+

+inline bool parse_range_header(const std::string &s, Ranges &ranges) try {

+  static auto re_first_range = std::regex(R"(bytes=(\d*-\d*(?:,\s*\d*-\d*)*))");

+  std::smatch m;

+  if (std::regex_match(s, m, re_first_range)) {

+    auto pos = static_cast<size_t>(m.position(1));

+    auto len = static_cast<size_t>(m.length(1));

+    bool all_valid_ranges = true;

+    split(&s[pos], &s[pos + len], ',', [&](const char *b, const char *e) {

+      if (!all_valid_ranges) return;

+      static auto re_another_range = std::regex(R"(\s*(\d*)-(\d*))");

+      std::cmatch cm;

+      if (std::regex_match(b, e, cm, re_another_range)) {

+        ssize_t first = -1;

+        if (!cm.str(1).empty()) {

+          first = static_cast<ssize_t>(std::stoll(cm.str(1)));

+        }

+

+        ssize_t last = -1;

+        if (!cm.str(2).empty()) {

+          last = static_cast<ssize_t>(std::stoll(cm.str(2)));

+        }

+

+        if (first != -1 && last != -1 && first > last) {

+          all_valid_ranges = false;

+          return;

+        }

+        ranges.emplace_back(std::make_pair(first, last));

+      }

+    });

+    return all_valid_ranges;

+  }

+  return false;

+} catch (...) { return false; }

+

+class MultipartFormDataParser {

+public:

+  MultipartFormDataParser() = default;

+

+  void set_boundary(std::string &&boundary) { boundary_ = boundary; }

+

+  bool is_valid() const { return is_valid_; }

+

+  bool parse(const char *buf, size_t n, const ContentReceiver &content_callback,

+             const MultipartContentHeader &header_callback) {

+

+    static const std::regex re_content_disposition(

+        "^Content-Disposition:\\s*form-data;\\s*name=\"(.*?)\"(?:;\\s*filename="

+        "\"(.*?)\")?\\s*$",

+        std::regex_constants::icase);

+    static const std::string dash_ = "--";

+    static const std::string crlf_ = "\r\n";

+

+    buf_.append(buf, n); // TODO: performance improvement

+

+    while (!buf_.empty()) {

+      switch (state_) {

+      case 0: { // Initial boundary

+        auto pattern = dash_ + boundary_ + crlf_;

+        if (pattern.size() > buf_.size()) { return true; }

+        auto pos = buf_.find(pattern);

+        if (pos != 0) { return false; }

+        buf_.erase(0, pattern.size());

+        off_ += pattern.size();

+        state_ = 1;

+        break;

+      }

+      case 1: { // New entry

+        clear_file_info();

+        state_ = 2;

+        break;

+      }

+      case 2: { // Headers

+        auto pos = buf_.find(crlf_);

+        while (pos != std::string::npos) {

+          // Empty line

+          if (pos == 0) {

+            if (!header_callback(file_)) {

+              is_valid_ = false;

+              return false;

+            }

+            buf_.erase(0, crlf_.size());

+            off_ += crlf_.size();

+            state_ = 3;

+            break;

+          }

+

+          static const std::string header_name = "content-type:";

+          const auto header = buf_.substr(0, pos);

+          if (start_with_case_ignore(header, header_name)) {

+            file_.content_type = trim_copy(header.substr(header_name.size()));

+          } else {

+            std::smatch m;

+            if (std::regex_match(header, m, re_content_disposition)) {

+              file_.name = m[1];

+              file_.filename = m[2];

+            }

+          }

+

+          buf_.erase(0, pos + crlf_.size());

+          off_ += pos + crlf_.size();

+          pos = buf_.find(crlf_);

+        }

+        if (state_ != 3) { return true; }

+        break;

+      }

+      case 3: { // Body

+        {

+          auto pattern = crlf_ + dash_;

+          if (pattern.size() > buf_.size()) { return true; }

+

+          auto pos = find_string(buf_, pattern);

+

+          if (!content_callback(buf_.data(), pos)) {

+            is_valid_ = false;

+            return false;

+          }

+

+          off_ += pos;

+          buf_.erase(0, pos);

+        }

+        {

+          auto pattern = crlf_ + dash_ + boundary_;

+          if (pattern.size() > buf_.size()) { return true; }

+

+          auto pos = buf_.find(pattern);

+          if (pos != std::string::npos) {

+            if (!content_callback(buf_.data(), pos)) {

+              is_valid_ = false;

+              return false;

+            }

+

+            off_ += pos + pattern.size();

+            buf_.erase(0, pos + pattern.size());

+            state_ = 4;

+          } else {

+            if (!content_callback(buf_.data(), pattern.size())) {

+              is_valid_ = false;

+              return false;

+            }

+

+            off_ += pattern.size();

+            buf_.erase(0, pattern.size());

+          }

+        }

+        break;

+      }

+      case 4: { // Boundary

+        if (crlf_.size() > buf_.size()) { return true; }

+        if (buf_.compare(0, crlf_.size(), crlf_) == 0) {

+          buf_.erase(0, crlf_.size());

+          off_ += crlf_.size();

+          state_ = 1;

+        } else {

+          auto pattern = dash_ + crlf_;

+          if (pattern.size() > buf_.size()) { return true; }

+          if (buf_.compare(0, pattern.size(), pattern) == 0) {

+            buf_.erase(0, pattern.size());

+            off_ += pattern.size();

+            is_valid_ = true;

+            state_ = 5;

+          } else {

+            return true;

+          }

+        }

+        break;

+      }

+      case 5: { // Done

+        is_valid_ = false;

+        return false;

+      }

+      }

+    }

+

+    return true;

+  }

+

+private:

+  void clear_file_info() {

+    file_.name.clear();

+    file_.filename.clear();

+    file_.content_type.clear();

+  }

+

+  bool start_with_case_ignore(const std::string &a,

+                              const std::string &b) const {

+    if (a.size() < b.size()) { return false; }

+    for (size_t i = 0; i < b.size(); i++) {

+      if (::tolower(a[i]) != ::tolower(b[i])) { return false; }

+    }

+    return true;

+  }

+

+  bool start_with(const std::string &a, size_t off,

+                  const std::string &b) const {

+    if (a.size() - off < b.size()) { return false; }

+    for (size_t i = 0; i < b.size(); i++) {

+      if (a[i + off] != b[i]) { return false; }

+    }

+    return true;

+  }

+

+  size_t find_string(const std::string &s, const std::string &pattern) const {

+    auto c = pattern.front();

+

+    size_t off = 0;

+    while (off < s.size()) {

+      auto pos = s.find(c, off);

+      if (pos == std::string::npos) { return s.size(); }

+

+      auto rem = s.size() - pos;

+      if (pattern.size() > rem) { return pos; }

+

+      if (start_with(s, pos, pattern)) { return pos; }

+

+      off = pos + 1;

+    }

+

+    return s.size();

+  }

+

+  std::string boundary_;

+

+  std::string buf_;

+  size_t state_ = 0;

+  bool is_valid_ = false;

+  size_t off_ = 0;

+  MultipartFormData file_;

+};

+

+inline std::string to_lower(const char *beg, const char *end) {

+  std::string out;

+  auto it = beg;

+  while (it != end) {

+    out += static_cast<char>(::tolower(*it));

+    it++;

+  }

+  return out;

+}

+

+inline std::string make_multipart_data_boundary() {

+  static const char data[] =

+      "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

+

+  // std::random_device might actually be deterministic on some

+  // platforms, but due to lack of support in the c++ standard library,

+  // doing better requires either some ugly hacks or breaking portability.

+  std::random_device seed_gen;

+  // Request 128 bits of entropy for initialization

+  std::seed_seq seed_sequence{seed_gen(), seed_gen(), seed_gen(), seed_gen()};

+  std::mt19937 engine(seed_sequence);

+

+  std::string result = "--cpp-httplib-multipart-data-";

+

+  for (auto i = 0; i < 16; i++) {

+    result += data[engine() % (sizeof(data) - 1)];

+  }

+

+  return result;

+}

+

+inline std::pair<size_t, size_t>

+get_range_offset_and_length(const Request &req, size_t content_length,

+                            size_t index) {

+  auto r = req.ranges[index];

+

+  if (r.first == -1 && r.second == -1) {

+    return std::make_pair(0, content_length);

+  }

+

+  auto slen = static_cast<ssize_t>(content_length);

+

+  if (r.first == -1) {

+    r.first = (std::max)(static_cast<ssize_t>(0), slen - r.second);

+    r.second = slen - 1;

+  }

+

+  if (r.second == -1) { r.second = slen - 1; }

+  return std::make_pair(r.first, static_cast<size_t>(r.second - r.first) + 1);

+}

+

+inline std::string make_content_range_header_field(size_t offset, size_t length,

+                                                   size_t content_length) {

+  std::string field = "bytes ";

+  field += std::to_string(offset);

+  field += "-";

+  field += std::to_string(offset + length - 1);

+  field += "/";

+  field += std::to_string(content_length);

+  return field;

+}

+

+template <typename SToken, typename CToken, typename Content>

+bool process_multipart_ranges_data(const Request &req, Response &res,

+                                   const std::string &boundary,

+                                   const std::string &content_type,

+                                   SToken stoken, CToken ctoken,

+                                   Content content) {

+  for (size_t i = 0; i < req.ranges.size(); i++) {

+    ctoken("--");

+    stoken(boundary);

+    ctoken("\r\n");

+    if (!content_type.empty()) {

+      ctoken("Content-Type: ");

+      stoken(content_type);

+      ctoken("\r\n");

+    }

+

+    auto offsets = get_range_offset_and_length(req, res.body.size(), i);

+    auto offset = offsets.first;

+    auto length = offsets.second;

+

+    ctoken("Content-Range: ");

+    stoken(make_content_range_header_field(offset, length, res.body.size()));

+    ctoken("\r\n");

+    ctoken("\r\n");

+    if (!content(offset, length)) { return false; }

+    ctoken("\r\n");

+  }

+

+  ctoken("--");

+  stoken(boundary);

+  ctoken("--\r\n");

+

+  return true;

+}

+

+inline bool make_multipart_ranges_data(const Request &req, Response &res,

+                                       const std::string &boundary,

+                                       const std::string &content_type,

+                                       std::string &data) {

+  return process_multipart_ranges_data(

+      req, res, boundary, content_type,

+      [&](const std::string &token) { data += token; },

+      [&](const char *token) { data += token; },

+      [&](size_t offset, size_t length) {

+        if (offset < res.body.size()) {

+          data += res.body.substr(offset, length);

+          return true;

+        }

+        return false;

+      });

+}

+

+inline size_t

+get_multipart_ranges_data_length(const Request &req, Response &res,

+                                 const std::string &boundary,

+                                 const std::string &content_type) {

+  size_t data_length = 0;

+

+  process_multipart_ranges_data(

+      req, res, boundary, content_type,

+      [&](const std::string &token) { data_length += token.size(); },

+      [&](const char *token) { data_length += strlen(token); },

+      [&](size_t /*offset*/, size_t length) {

+        data_length += length;

+        return true;

+      });

+

+  return data_length;

+}

+

+template <typename T>

+inline bool write_multipart_ranges_data(Stream &strm, const Request &req,

+                                        Response &res,

+                                        const std::string &boundary,

+                                        const std::string &content_type,

+                                        const T &is_shutting_down) {

+  return process_multipart_ranges_data(

+      req, res, boundary, content_type,

+      [&](const std::string &token) { strm.write(token); },

+      [&](const char *token) { strm.write(token); },

+      [&](size_t offset, size_t length) {

+        return write_content(strm, res.content_provider_, offset, length,

+                             is_shutting_down);

+      });

+}

+

+inline std::pair<size_t, size_t>

+get_range_offset_and_length(const Request &req, const Response &res,

+                            size_t index) {

+  auto r = req.ranges[index];

+

+  if (r.second == -1) {

+    r.second = static_cast<ssize_t>(res.content_length_) - 1;

+  }

+

+  return std::make_pair(r.first, r.second - r.first + 1);

+}

+

+inline bool expect_content(const Request &req) {

+  if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH" ||

+      req.method == "PRI" || req.method == "DELETE") {

+    return true;

+  }

+  // TODO: check if Content-Length is set

+  return false;

+}

+

+inline bool has_crlf(const char *s) {

+  auto p = s;

+  while (*p) {

+    if (*p == '\r' || *p == '\n') { return true; }

+    p++;

+  }

+  return false;

+}

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+template <typename CTX, typename Init, typename Update, typename Final>

+inline std::string message_digest(const std::string &s, Init init,

+                                  Update update, Final final,

+                                  size_t digest_length) {

+  using namespace std;

+

+  std::vector<unsigned char> md(digest_length, 0);

+  CTX ctx;

+  init(&ctx);

+  update(&ctx, s.data(), s.size());

+  final(md.data(), &ctx);

+

+  stringstream ss;

+  for (auto c : md) {

+    ss << setfill('0') << setw(2) << hex << (unsigned int)c;

+  }

+  return ss.str();

+}

+

+inline std::string MD5(const std::string &s) {

+  return message_digest<MD5_CTX>(s, MD5_Init, MD5_Update, MD5_Final,

+                                 MD5_DIGEST_LENGTH);

+}

+

+inline std::string SHA_256(const std::string &s) {

+  return message_digest<SHA256_CTX>(s, SHA256_Init, SHA256_Update, SHA256_Final,

+                                    SHA256_DIGEST_LENGTH);

+}

+

+inline std::string SHA_512(const std::string &s) {

+  return message_digest<SHA512_CTX>(s, SHA512_Init, SHA512_Update, SHA512_Final,

+                                    SHA512_DIGEST_LENGTH);

+}

+#endif

+

+#ifdef _WIN32

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+// NOTE: This code came up with the following stackoverflow post:

+// https://stackoverflow.com/questions/9507184/can-openssl-on-windows-use-the-system-certificate-store

+inline bool load_system_certs_on_windows(X509_STORE *store) {

+  auto hStore = CertOpenSystemStoreW((HCRYPTPROV_LEGACY)NULL, L"ROOT");

+

+  if (!hStore) { return false; }

+

+  PCCERT_CONTEXT pContext = NULL;

+  while ((pContext = CertEnumCertificatesInStore(hStore, pContext)) !=

+         nullptr) {

+    auto encoded_cert =

+        static_cast<const unsigned char *>(pContext->pbCertEncoded);

+

+    auto x509 = d2i_X509(NULL, &encoded_cert, pContext->cbCertEncoded);

+    if (x509) {

+      X509_STORE_add_cert(store, x509);

+      X509_free(x509);

+    }

+  }

+

+  CertFreeCertificateContext(pContext);

+  CertCloseStore(hStore, 0);

+

+  return true;

+}

+#endif

+

+class WSInit {

+public:

+  WSInit() {

+    WSADATA wsaData;

+    WSAStartup(0x0002, &wsaData);

+  }

+

+  ~WSInit() { WSACleanup(); }

+};

+

+static WSInit wsinit_;

+#endif

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+inline std::pair<std::string, std::string> make_digest_authentication_header(

+    const Request &req, const std::map<std::string, std::string> &auth,

+    size_t cnonce_count, const std::string &cnonce, const std::string &username,

+    const std::string &password, bool is_proxy = false) {

+  using namespace std;

+

+  string nc;

+  {

+    stringstream ss;

+    ss << setfill('0') << setw(8) << hex << cnonce_count;

+    nc = ss.str();

+  }

+

+  auto qop = auth.at("qop");

+  if (qop.find("auth-int") != std::string::npos) {

+    qop = "auth-int";

+  } else {

+    qop = "auth";

+  }

+

+  std::string algo = "MD5";

+  if (auth.find("algorithm") != auth.end()) { algo = auth.at("algorithm"); }

+

+  string response;

+  {

+    auto H = algo == "SHA-256"

+                 ? detail::SHA_256

+                 : algo == "SHA-512" ? detail::SHA_512 : detail::MD5;

+

+    auto A1 = username + ":" + auth.at("realm") + ":" + password;

+

+    auto A2 = req.method + ":" + req.path;

+    if (qop == "auth-int") { A2 += ":" + H(req.body); }

+

+    response = H(H(A1) + ":" + auth.at("nonce") + ":" + nc + ":" + cnonce +

+                 ":" + qop + ":" + H(A2));

+  }

+

+  auto field = "Digest username=\"" + username + "\", realm=\"" +

+               auth.at("realm") + "\", nonce=\"" + auth.at("nonce") +

+               "\", uri=\"" + req.path + "\", algorithm=" + algo +

+               ", qop=" + qop + ", nc=\"" + nc + "\", cnonce=\"" + cnonce +

+               "\", response=\"" + response + "\"";

+

+  auto key = is_proxy ? "Proxy-Authorization" : "Authorization";

+  return std::make_pair(key, field);

+}

+#endif

+

+inline bool parse_www_authenticate(const Response &res,

+                                   std::map<std::string, std::string> &auth,

+                                   bool is_proxy) {

+  auto auth_key = is_proxy ? "Proxy-Authenticate" : "WWW-Authenticate";

+  if (res.has_header(auth_key)) {

+    static auto re = std::regex(R"~((?:(?:,\s*)?(.+?)=(?:"(.*?)"|([^,]*))))~");

+    auto s = res.get_header_value(auth_key);

+    auto pos = s.find(' ');

+    if (pos != std::string::npos) {

+      auto type = s.substr(0, pos);

+      if (type == "Basic") {

+        return false;

+      } else if (type == "Digest") {

+        s = s.substr(pos + 1);

+        auto beg = std::sregex_iterator(s.begin(), s.end(), re);

+        for (auto i = beg; i != std::sregex_iterator(); ++i) {

+          auto m = *i;

+          auto key = s.substr(static_cast<size_t>(m.position(1)),

+                              static_cast<size_t>(m.length(1)));

+          auto val = m.length(2) > 0

+                         ? s.substr(static_cast<size_t>(m.position(2)),

+                                    static_cast<size_t>(m.length(2)))

+                         : s.substr(static_cast<size_t>(m.position(3)),

+                                    static_cast<size_t>(m.length(3)));

+          auth[key] = val;

+        }

+        return true;

+      }

+    }

+  }

+  return false;

+}

+

+// https://stackoverflow.com/questions/440133/how-do-i-create-a-random-alpha-numeric-string-in-c/440240#answer-440240

+inline std::string random_string(size_t length) {

+  auto randchar = []() -> char {

+    const char charset[] = "0123456789"

+                           "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

+                           "abcdefghijklmnopqrstuvwxyz";

+    const size_t max_index = (sizeof(charset) - 1);

+    return charset[static_cast<size_t>(std::rand()) % max_index];

+  };

+  std::string str(length, 0);

+  std::generate_n(str.begin(), length, randchar);

+  return str;

+}

+

+class ContentProviderAdapter {

+public:

+  explicit ContentProviderAdapter(

+      ContentProviderWithoutLength &&content_provider)

+      : content_provider_(content_provider) {}

+

+  bool operator()(size_t offset, size_t, DataSink &sink) {

+    return content_provider_(offset, sink);

+  }

+

+private:

+  ContentProviderWithoutLength content_provider_;

+};

+

+} // namespace detail

+

+// Header utilities

+inline std::pair<std::string, std::string> make_range_header(Ranges ranges) {

+  std::string field = "bytes=";

+  auto i = 0;

+  for (auto r : ranges) {

+    if (i != 0) { field += ", "; }

+    if (r.first != -1) { field += std::to_string(r.first); }

+    field += '-';

+    if (r.second != -1) { field += std::to_string(r.second); }

+    i++;

+  }

+  return std::make_pair("Range", std::move(field));

+}

+

+inline std::pair<std::string, std::string>

+make_basic_authentication_header(const std::string &username,

+                                 const std::string &password, bool is_proxy) {

+  auto field = "Basic " + detail::base64_encode(username + ":" + password);

+  auto key = is_proxy ? "Proxy-Authorization" : "Authorization";

+  return std::make_pair(key, std::move(field));

+}

+

+inline std::pair<std::string, std::string>

+make_bearer_token_authentication_header(const std::string &token,

+                                        bool is_proxy = false) {

+  auto field = "Bearer " + token;

+  auto key = is_proxy ? "Proxy-Authorization" : "Authorization";

+  return std::make_pair(key, std::move(field));

+}

+

+// Request implementation

+inline bool Request::has_header(const char *key) const {

+  return detail::has_header(headers, key);

+}

+

+inline std::string Request::get_header_value(const char *key, size_t id) const {

+  return detail::get_header_value(headers, key, id, "");

+}

+

+inline size_t Request::get_header_value_count(const char *key) const {

+  auto r = headers.equal_range(key);

+  return static_cast<size_t>(std::distance(r.first, r.second));

+}

+

+inline void Request::set_header(const char *key, const char *val) {

+  if (!detail::has_crlf(key) && !detail::has_crlf(val)) {

+    headers.emplace(key, val);

+  }

+}

+

+inline void Request::set_header(const char *key, const std::string &val) {

+  if (!detail::has_crlf(key) && !detail::has_crlf(val.c_str())) {

+    headers.emplace(key, val);

+  }

+}

+

+inline bool Request::has_param(const char *key) const {

+  return params.find(key) != params.end();

+}

+

+inline std::string Request::get_param_value(const char *key, size_t id) const {

+  auto rng = params.equal_range(key);

+  auto it = rng.first;

+  std::advance(it, static_cast<ssize_t>(id));

+  if (it != rng.second) { return it->second; }

+  return std::string();

+}

+

+inline size_t Request::get_param_value_count(const char *key) const {

+  auto r = params.equal_range(key);

+  return static_cast<size_t>(std::distance(r.first, r.second));

+}

+

+inline bool Request::is_multipart_form_data() const {

+  const auto &content_type = get_header_value("Content-Type");

+  return !content_type.find("multipart/form-data");

+}

+

+inline bool Request::has_file(const char *key) const {

+  return files.find(key) != files.end();

+}

+

+inline MultipartFormData Request::get_file_value(const char *key) const {

+  auto it = files.find(key);

+  if (it != files.end()) { return it->second; }

+  return MultipartFormData();

+}

+

+// Response implementation

+inline bool Response::has_header(const char *key) const {

+  return headers.find(key) != headers.end();

+}

+

+inline std::string Response::get_header_value(const char *key,

+                                              size_t id) const {

+  return detail::get_header_value(headers, key, id, "");

+}

+

+inline size_t Response::get_header_value_count(const char *key) const {

+  auto r = headers.equal_range(key);

+  return static_cast<size_t>(std::distance(r.first, r.second));

+}

+

+inline void Response::set_header(const char *key, const char *val) {

+  if (!detail::has_crlf(key) && !detail::has_crlf(val)) {

+    headers.emplace(key, val);

+  }

+}

+

+inline void Response::set_header(const char *key, const std::string &val) {

+  if (!detail::has_crlf(key) && !detail::has_crlf(val.c_str())) {

+    headers.emplace(key, val);

+  }

+}

+

+inline void Response::set_redirect(const char *url, int stat) {

+  if (!detail::has_crlf(url)) {

+    set_header("Location", url);

+    if (300 <= stat && stat < 400) {

+      this->status = stat;

+    } else {

+      this->status = 302;

+    }

+  }

+}

+

+inline void Response::set_redirect(const std::string &url, int stat) {

+  set_redirect(url.c_str(), stat);

+}

+

+inline void Response::set_content(const char *s, size_t n,

+                                  const char *content_type) {

+  body.assign(s, n);

+

+  auto rng = headers.equal_range("Content-Type");

+  headers.erase(rng.first, rng.second);

+  set_header("Content-Type", content_type);

+}

+

+inline void Response::set_content(const std::string &s,

+                                  const char *content_type) {

+  set_content(s.data(), s.size(), content_type);

+}

+

+inline void Response::set_content_provider(

+    size_t in_length, const char *content_type, ContentProvider provider,

+    ContentProviderResourceReleaser resource_releaser) {

+  assert(in_length > 0);

+  set_header("Content-Type", content_type);

+  content_length_ = in_length;

+  content_provider_ = std::move(provider);

+  content_provider_resource_releaser_ = resource_releaser;

+  is_chunked_content_provider_ = false;

+}

+

+inline void Response::set_content_provider(

+    const char *content_type, ContentProviderWithoutLength provider,

+    ContentProviderResourceReleaser resource_releaser) {

+  set_header("Content-Type", content_type);

+  content_length_ = 0;

+  content_provider_ = detail::ContentProviderAdapter(std::move(provider));

+  content_provider_resource_releaser_ = resource_releaser;

+  is_chunked_content_provider_ = false;

+}

+

+inline void Response::set_chunked_content_provider(

+    const char *content_type, ContentProviderWithoutLength provider,

+    ContentProviderResourceReleaser resource_releaser) {

+  set_header("Content-Type", content_type);

+  content_length_ = 0;

+  content_provider_ = detail::ContentProviderAdapter(std::move(provider));

+  content_provider_resource_releaser_ = resource_releaser;

+  is_chunked_content_provider_ = true;

+}

+

+// Result implementation

+inline bool Result::has_request_header(const char *key) const {

+  return request_headers_.find(key) != request_headers_.end();

+}

+

+inline std::string Result::get_request_header_value(const char *key,

+                                                    size_t id) const {

+  return detail::get_header_value(request_headers_, key, id, "");

+}

+

+inline size_t Result::get_request_header_value_count(const char *key) const {

+  auto r = request_headers_.equal_range(key);

+  return static_cast<size_t>(std::distance(r.first, r.second));

+}

+

+// Stream implementation

+inline ssize_t Stream::write(const char *ptr) {

+  return write(ptr, strlen(ptr));

+}

+

+inline ssize_t Stream::write(const std::string &s) {

+  return write(s.data(), s.size());

+}

+

+namespace detail {

+

+// Socket stream implementation

+inline SocketStream::SocketStream(socket_t sock, time_t read_timeout_sec,

+                                  time_t read_timeout_usec,

+                                  time_t write_timeout_sec,

+                                  time_t write_timeout_usec)

+    : sock_(sock), read_timeout_sec_(read_timeout_sec),

+      read_timeout_usec_(read_timeout_usec),

+      write_timeout_sec_(write_timeout_sec),

+      write_timeout_usec_(write_timeout_usec) {}

+

+inline SocketStream::~SocketStream() {}

+

+inline bool SocketStream::is_readable() const {

+  return select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0;

+}

+

+inline bool SocketStream::is_writable() const {

+  return select_write(sock_, write_timeout_sec_, write_timeout_usec_) > 0;

+}

+

+inline ssize_t SocketStream::read(char *ptr, size_t size) {

+  if (!is_readable()) { return -1; }

+

+#ifdef _WIN32

+  if (size > static_cast<size_t>((std::numeric_limits<int>::max)())) {

+    return -1;

+  }

+  return recv(sock_, ptr, static_cast<int>(size), CPPHTTPLIB_RECV_FLAGS);

+#else

+  return handle_EINTR(

+      [&]() { return recv(sock_, ptr, size, CPPHTTPLIB_RECV_FLAGS); });

+#endif

+}

+

+inline ssize_t SocketStream::write(const char *ptr, size_t size) {

+  if (!is_writable()) { return -1; }

+

+#ifdef _WIN32

+  if (size > static_cast<size_t>((std::numeric_limits<int>::max)())) {

+    return -1;

+  }

+  return send(sock_, ptr, static_cast<int>(size), CPPHTTPLIB_SEND_FLAGS);

+#else

+  return handle_EINTR(

+      [&]() { return send(sock_, ptr, size, CPPHTTPLIB_SEND_FLAGS); });

+#endif

+}

+

+inline void SocketStream::get_remote_ip_and_port(std::string &ip,

+                                                 int &port) const {

+  return detail::get_remote_ip_and_port(sock_, ip, port);

+}

+

+inline socket_t SocketStream::socket() const { return sock_; }

+

+// Buffer stream implementation

+inline bool BufferStream::is_readable() const { return true; }

+

+inline bool BufferStream::is_writable() const { return true; }

+

+inline ssize_t BufferStream::read(char *ptr, size_t size) {

+#if defined(_MSC_VER) && _MSC_VER <= 1900

+  auto len_read = buffer._Copy_s(ptr, size, size, position);

+#else

+  auto len_read = buffer.copy(ptr, size, position);

+#endif

+  position += static_cast<size_t>(len_read);

+  return static_cast<ssize_t>(len_read);

+}

+

+inline ssize_t BufferStream::write(const char *ptr, size_t size) {

+  buffer.append(ptr, size);

+  return static_cast<ssize_t>(size);

+}

+

+inline void BufferStream::get_remote_ip_and_port(std::string & /*ip*/,

+                                                 int & /*port*/) const {}

+

+inline socket_t BufferStream::socket() const { return 0; }

+

+inline const std::string &BufferStream::get_buffer() const { return buffer; }

+

+} // namespace detail

+

+// HTTP server implementation

+inline Server::Server()

+    : new_task_queue(

+          [] { return new ThreadPool(CPPHTTPLIB_THREAD_POOL_COUNT); }),

+      svr_sock_(INVALID_SOCKET), is_running_(false) {

+#ifndef _WIN32

+  signal(SIGPIPE, SIG_IGN);

+#endif

+}

+

+inline Server::~Server() {}

+

+inline Server &Server::Get(const std::string &pattern, Handler handler) {

+  get_handlers_.push_back(

+      std::make_pair(std::regex(pattern), std::move(handler)));

+  return *this;

+}

+

+inline Server &Server::Post(const std::string &pattern, Handler handler) {

+  post_handlers_.push_back(

+      std::make_pair(std::regex(pattern), std::move(handler)));

+  return *this;

+}

+

+inline Server &Server::Post(const std::string &pattern,

+                            HandlerWithContentReader handler) {

+  post_handlers_for_content_reader_.push_back(

+      std::make_pair(std::regex(pattern), std::move(handler)));

+  return *this;

+}

+

+inline Server &Server::Put(const std::string &pattern, Handler handler) {

+  put_handlers_.push_back(

+      std::make_pair(std::regex(pattern), std::move(handler)));

+  return *this;

+}

+

+inline Server &Server::Put(const std::string &pattern,

+                           HandlerWithContentReader handler) {

+  put_handlers_for_content_reader_.push_back(

+      std::make_pair(std::regex(pattern), std::move(handler)));

+  return *this;

+}

+

+inline Server &Server::Patch(const std::string &pattern, Handler handler) {

+  patch_handlers_.push_back(

+      std::make_pair(std::regex(pattern), std::move(handler)));

+  return *this;

+}

+

+inline Server &Server::Patch(const std::string &pattern,

+                             HandlerWithContentReader handler) {

+  patch_handlers_for_content_reader_.push_back(

+      std::make_pair(std::regex(pattern), std::move(handler)));

+  return *this;

+}

+

+inline Server &Server::Delete(const std::string &pattern, Handler handler) {

+  delete_handlers_.push_back(

+      std::make_pair(std::regex(pattern), std::move(handler)));

+  return *this;

+}

+

+inline Server &Server::Delete(const std::string &pattern,

+                              HandlerWithContentReader handler) {

+  delete_handlers_for_content_reader_.push_back(

+      std::make_pair(std::regex(pattern), std::move(handler)));

+  return *this;

+}

+

+inline Server &Server::Options(const std::string &pattern, Handler handler) {

+  options_handlers_.push_back(

+      std::make_pair(std::regex(pattern), std::move(handler)));

+  return *this;

+}

+

+inline bool Server::set_base_dir(const std::string &dir,

+                                 const std::string &mount_point) {

+  return set_mount_point(mount_point, dir);

+}

+

+inline bool Server::set_mount_point(const std::string &mount_point,

+                                    const std::string &dir, Headers headers) {

+  if (detail::is_dir(dir)) {

+    std::string mnt = !mount_point.empty() ? mount_point : "/";

+    if (!mnt.empty() && mnt[0] == '/') {

+      base_dirs_.push_back({mnt, dir, std::move(headers)});

+      return true;

+    }

+  }

+  return false;

+}

+

+inline bool Server::remove_mount_point(const std::string &mount_point) {

+  for (auto it = base_dirs_.begin(); it != base_dirs_.end(); ++it) {

+    if (it->mount_point == mount_point) {

+      base_dirs_.erase(it);

+      return true;

+    }

+  }

+  return false;

+}

+

+inline Server &

+Server::set_file_extension_and_mimetype_mapping(const char *ext,

+                                                const char *mime) {

+  file_extension_and_mimetype_map_[ext] = mime;

+  return *this;

+}

+

+inline Server &Server::set_file_request_handler(Handler handler) {

+  file_request_handler_ = std::move(handler);

+  return *this;

+}

+

+inline Server &Server::set_error_handler(HandlerWithResponse handler) {

+  error_handler_ = std::move(handler);

+  return *this;

+}

+

+inline Server &Server::set_error_handler(Handler handler) {

+  error_handler_ = [handler](const Request &req, Response &res) {

+    handler(req, res);

+    return HandlerResponse::Handled;

+  };

+  return *this;

+}

+

+inline Server &Server::set_exception_handler(ExceptionHandler handler) {

+  exception_handler_ = std::move(handler);

+  return *this;

+}

+

+inline Server &Server::set_pre_routing_handler(HandlerWithResponse handler) {

+  pre_routing_handler_ = std::move(handler);

+  return *this;

+}

+

+inline Server &Server::set_post_routing_handler(Handler handler) {

+  post_routing_handler_ = std::move(handler);

+  return *this;

+}

+

+inline Server &Server::set_logger(Logger logger) {

+  logger_ = std::move(logger);

+  return *this;

+}

+

+inline Server &

+Server::set_expect_100_continue_handler(Expect100ContinueHandler handler) {

+  expect_100_continue_handler_ = std::move(handler);

+

+  return *this;

+}

+

+inline Server &Server::set_address_family(int family) {

+  address_family_ = family;

+  return *this;

+}

+

+inline Server &Server::set_tcp_nodelay(bool on) {

+  tcp_nodelay_ = on;

+  return *this;

+}

+

+inline Server &Server::set_socket_options(SocketOptions socket_options) {

+  socket_options_ = std::move(socket_options);

+  return *this;

+}

+

+inline Server &Server::set_default_headers(Headers headers) {

+  default_headers_ = std::move(headers);

+  return *this;

+}

+

+inline Server &Server::set_keep_alive_max_count(size_t count) {

+  keep_alive_max_count_ = count;

+  return *this;

+}

+

+inline Server &Server::set_keep_alive_timeout(time_t sec) {

+  keep_alive_timeout_sec_ = sec;

+  return *this;

+}

+

+inline Server &Server::set_read_timeout(time_t sec, time_t usec) {

+  read_timeout_sec_ = sec;

+  read_timeout_usec_ = usec;

+  return *this;

+}

+

+inline Server &Server::set_write_timeout(time_t sec, time_t usec) {

+  write_timeout_sec_ = sec;

+  write_timeout_usec_ = usec;

+  return *this;

+}

+

+inline Server &Server::set_idle_interval(time_t sec, time_t usec) {

+  idle_interval_sec_ = sec;

+  idle_interval_usec_ = usec;

+  return *this;

+}

+

+inline Server &Server::set_payload_max_length(size_t length) {

+  payload_max_length_ = length;

+  return *this;

+}

+

+inline bool Server::bind_to_port(const char *host, int port, int socket_flags) {

+  if (bind_internal(host, port, socket_flags) < 0) return false;

+  return true;

+}

+inline int Server::bind_to_any_port(const char *host, int socket_flags) {

+  return bind_internal(host, 0, socket_flags);

+}

+

+inline bool Server::listen_after_bind() { return listen_internal(); }

+

+inline bool Server::listen(const char *host, int port, int socket_flags) {

+  return bind_to_port(host, port, socket_flags) && listen_internal();

+}

+

+inline bool Server::is_running() const { return is_running_; }

+

+inline void Server::stop() {

+  if (is_running_) {

+    assert(svr_sock_ != INVALID_SOCKET);

+    std::atomic<socket_t> sock(svr_sock_.exchange(INVALID_SOCKET));

+    detail::shutdown_socket(sock);

+    detail::close_socket(sock);

+  }

+}

+

+inline bool Server::parse_request_line(const char *s, Request &req) {

+  auto len = strlen(s);

+  if (len < 2 || s[len - 2] != '\r' || s[len - 1] != '\n') { return false; }

+  len -= 2;

+

+  {

+    size_t count = 0;

+

+    detail::split(s, s + len, ' ', [&](const char *b, const char *e) {

+      switch (count) {

+      case 0: req.method = std::string(b, e); break;

+      case 1: req.target = std::string(b, e); break;

+      case 2: req.version = std::string(b, e); break;

+      default: break;

+      }

+      count++;

+    });

+

+    if (count != 3) { return false; }

+  }

+

+  static const std::set<std::string> methods{

+      "GET",     "HEAD",    "POST",  "PUT",   "DELETE",

+      "CONNECT", "OPTIONS", "TRACE", "PATCH", "PRI"};

+

+  if (methods.find(req.method) == methods.end()) { return false; }

+

+  if (req.version != "HTTP/1.1" && req.version != "HTTP/1.0") { return false; }

+

+  {

+    size_t count = 0;

+

+    detail::split(req.target.data(), req.target.data() + req.target.size(), '?',

+                  [&](const char *b, const char *e) {

+                    switch (count) {

+                    case 0:

+                      req.path = detail::decode_url(std::string(b, e), false);

+                      break;

+                    case 1: {

+                      if (e - b > 0) {

+                        detail::parse_query_text(std::string(b, e), req.params);

+                      }

+                      break;

+                    }

+                    default: break;

+                    }

+                    count++;

+                  });

+

+    if (count > 2) { return false; }

+  }

+

+  return true;

+}

+

+inline bool Server::write_response(Stream &strm, bool close_connection,

+                                   const Request &req, Response &res) {

+  return write_response_core(strm, close_connection, req, res, false);

+}

+

+inline bool Server::write_response_with_content(Stream &strm,

+                                                bool close_connection,

+                                                const Request &req,

+                                                Response &res) {

+  return write_response_core(strm, close_connection, req, res, true);

+}

+

+inline bool Server::write_response_core(Stream &strm, bool close_connection,

+                                        const Request &req, Response &res,

+                                        bool need_apply_ranges) {

+  assert(res.status != -1);

+

+  if (400 <= res.status && error_handler_ &&

+      error_handler_(req, res) == HandlerResponse::Handled) {

+    need_apply_ranges = true;

+  }

+

+  std::string content_type;

+  std::string boundary;

+  if (need_apply_ranges) { apply_ranges(req, res, content_type, boundary); }

+

+  // Prepare additional headers

+  if (close_connection || req.get_header_value("Connection") == "close") {

+    res.set_header("Connection", "close");

+  } else {

+    std::stringstream ss;

+    ss << "timeout=" << keep_alive_timeout_sec_

+       << ", max=" << keep_alive_max_count_;

+    res.set_header("Keep-Alive", ss.str());

+  }

+

+  if (!res.has_header("Content-Type") &&

+      (!res.body.empty() || res.content_length_ > 0 || res.content_provider_)) {

+    res.set_header("Content-Type", "text/plain");

+  }

+

+  if (!res.has_header("Content-Length") && res.body.empty() &&

+      !res.content_length_ && !res.content_provider_) {

+    res.set_header("Content-Length", "0");

+  }

+

+  if (!res.has_header("Accept-Ranges") && req.method == "HEAD") {

+    res.set_header("Accept-Ranges", "bytes");

+  }

+

+  if (post_routing_handler_) { post_routing_handler_(req, res); }

+

+  // Response line and headers

+  {

+    detail::BufferStream bstrm;

+

+    if (!bstrm.write_format("HTTP/1.1 %d %s\r\n", res.status,

+                            detail::status_message(res.status))) {

+      return false;

+    }

+

+    if (!detail::write_headers(bstrm, res.headers)) { return false; }

+

+    // Flush buffer

+    auto &data = bstrm.get_buffer();

+    strm.write(data.data(), data.size());

+  }

+

+  // Body

+  auto ret = true;

+  if (req.method != "HEAD") {

+    if (!res.body.empty()) {

+      if (!strm.write(res.body)) { ret = false; }

+    } else if (res.content_provider_) {

+      if (write_content_with_provider(strm, req, res, boundary, content_type)) {

+        res.content_provider_success_ = true;

+      } else {

+        res.content_provider_success_ = false;

+        ret = false;

+      }

+    }

+  }

+

+  // Log

+  if (logger_) { logger_(req, res); }

+

+  return ret;

+}

+

+inline bool

+Server::write_content_with_provider(Stream &strm, const Request &req,

+                                    Response &res, const std::string &boundary,

+                                    const std::string &content_type) {

+  auto is_shutting_down = [this]() {

+    return this->svr_sock_ == INVALID_SOCKET;

+  };

+

+  if (res.content_length_ > 0) {

+    if (req.ranges.empty()) {

+      return detail::write_content(strm, res.content_provider_, 0,

+                                   res.content_length_, is_shutting_down);

+    } else if (req.ranges.size() == 1) {

+      auto offsets =

+          detail::get_range_offset_and_length(req, res.content_length_, 0);

+      auto offset = offsets.first;

+      auto length = offsets.second;

+      return detail::write_content(strm, res.content_provider_, offset, length,

+                                   is_shutting_down);

+    } else {

+      return detail::write_multipart_ranges_data(

+          strm, req, res, boundary, content_type, is_shutting_down);

+    }

+  } else {

+    if (res.is_chunked_content_provider_) {

+      auto type = detail::encoding_type(req, res);

+

+      std::unique_ptr<detail::compressor> compressor;

+      if (type == detail::EncodingType::Gzip) {

+#ifdef CPPHTTPLIB_ZLIB_SUPPORT

+        compressor = detail::make_unique<detail::gzip_compressor>();

+#endif

+      } else if (type == detail::EncodingType::Brotli) {

+#ifdef CPPHTTPLIB_BROTLI_SUPPORT

+        compressor = detail::make_unique<detail::brotli_compressor>();

+#endif

+      } else {

+        compressor = detail::make_unique<detail::nocompressor>();

+      }

+      assert(compressor != nullptr);

+

+      return detail::write_content_chunked(strm, res.content_provider_,

+                                           is_shutting_down, *compressor);

+    } else {

+      return detail::write_content_without_length(strm, res.content_provider_,

+                                                  is_shutting_down);

+    }

+  }

+}

+

+inline bool Server::read_content(Stream &strm, Request &req, Response &res) {

+  MultipartFormDataMap::iterator cur;

+  if (read_content_core(

+          strm, req, res,

+          // Regular

+          [&](const char *buf, size_t n) {

+            if (req.body.size() + n > req.body.max_size()) { return false; }

+            req.body.append(buf, n);

+            return true;

+          },

+          // Multipart

+          [&](const MultipartFormData &file) {

+            cur = req.files.emplace(file.name, file);

+            return true;

+          },

+          [&](const char *buf, size_t n) {

+            auto &content = cur->second.content;

+            if (content.size() + n > content.max_size()) { return false; }

+            content.append(buf, n);

+            return true;

+          })) {

+    const auto &content_type = req.get_header_value("Content-Type");

+    if (!content_type.find("application/x-www-form-urlencoded")) {

+      detail::parse_query_text(req.body, req.params);

+    }

+    return true;

+  }

+  return false;

+}

+

+inline bool Server::read_content_with_content_receiver(

+    Stream &strm, Request &req, Response &res, ContentReceiver receiver,

+    MultipartContentHeader multipart_header,

+    ContentReceiver multipart_receiver) {

+  return read_content_core(strm, req, res, std::move(receiver),

+                           std::move(multipart_header),

+                           std::move(multipart_receiver));

+}

+

+inline bool Server::read_content_core(Stream &strm, Request &req, Response &res,

+                                      ContentReceiver receiver,

+                                      MultipartContentHeader mulitpart_header,

+                                      ContentReceiver multipart_receiver) {

+  detail::MultipartFormDataParser multipart_form_data_parser;

+  ContentReceiverWithProgress out;

+

+  if (req.is_multipart_form_data()) {

+    const auto &content_type = req.get_header_value("Content-Type");

+    std::string boundary;

+    if (!detail::parse_multipart_boundary(content_type, boundary)) {

+      res.status = 400;

+      return false;

+    }

+

+    multipart_form_data_parser.set_boundary(std::move(boundary));

+    out = [&](const char *buf, size_t n, uint64_t /*off*/, uint64_t /*len*/) {

+      /* For debug

+      size_t pos = 0;

+      while (pos < n) {

+        auto read_size = std::min<size_t>(1, n - pos);

+        auto ret = multipart_form_data_parser.parse(

+            buf + pos, read_size, multipart_receiver, mulitpart_header);

+        if (!ret) { return false; }

+        pos += read_size;

+      }

+      return true;

+      */

+      return multipart_form_data_parser.parse(buf, n, multipart_receiver,

+                                              mulitpart_header);

+    };

+  } else {

+    out = [receiver](const char *buf, size_t n, uint64_t /*off*/,

+                     uint64_t /*len*/) { return receiver(buf, n); };

+  }

+

+  if (req.method == "DELETE" && !req.has_header("Content-Length")) {

+    return true;

+  }

+

+  if (!detail::read_content(strm, req, payload_max_length_, res.status, nullptr,

+                            out, true)) {

+    return false;

+  }

+

+  if (req.is_multipart_form_data()) {

+    if (!multipart_form_data_parser.is_valid()) {

+      res.status = 400;

+      return false;

+    }

+  }

+

+  return true;

+}

+

+inline bool Server::handle_file_request(const Request &req, Response &res,

+                                        bool head) {

+  for (const auto &entry : base_dirs_) {

+    // Prefix match

+    if (!req.path.compare(0, entry.mount_point.size(), entry.mount_point)) {

+      std::string sub_path = "/" + req.path.substr(entry.mount_point.size());

+      if (detail::is_valid_path(sub_path)) {

+        auto path = entry.base_dir + sub_path;

+        if (path.back() == '/') { path += "index.html"; }

+

+        if (detail::is_file(path)) {

+          detail::read_file(path, res.body);

+          auto type =

+              detail::find_content_type(path, file_extension_and_mimetype_map_);

+          if (type) { res.set_header("Content-Type", type); }

+          for (const auto &kv : entry.headers) {

+            res.set_header(kv.first.c_str(), kv.second);

+          }

+          res.status = req.has_header("Range") ? 206 : 200;

+          if (!head && file_request_handler_) {

+            file_request_handler_(req, res);

+          }

+          return true;

+        }

+      }

+    }

+  }

+  return false;

+}

+

+inline socket_t

+Server::create_server_socket(const char *host, int port, int socket_flags,

+                             SocketOptions socket_options) const {

+  return detail::create_socket(

+      host, port, address_family_, socket_flags, tcp_nodelay_,

+      std::move(socket_options),

+      [](socket_t sock, struct addrinfo &ai) -> bool {

+        if (::bind(sock, ai.ai_addr, static_cast<socklen_t>(ai.ai_addrlen))) {

+          return false;

+        }

+        if (::listen(sock, 5)) { // Listen through 5 channels

+          return false;

+        }

+        return true;

+      });

+}

+

+inline int Server::bind_internal(const char *host, int port, int socket_flags) {

+  if (!is_valid()) { return -1; }

+

+  svr_sock_ = create_server_socket(host, port, socket_flags, socket_options_);

+  if (svr_sock_ == INVALID_SOCKET) { return -1; }

+

+  if (port == 0) {

+    struct sockaddr_storage addr;

+    socklen_t addr_len = sizeof(addr);

+    if (getsockname(svr_sock_, reinterpret_cast<struct sockaddr *>(&addr),

+                    &addr_len) == -1) {

+      return -1;

+    }

+    if (addr.ss_family == AF_INET) {

+      return ntohs(reinterpret_cast<struct sockaddr_in *>(&addr)->sin_port);

+    } else if (addr.ss_family == AF_INET6) {

+      return ntohs(reinterpret_cast<struct sockaddr_in6 *>(&addr)->sin6_port);

+    } else {

+      return -1;

+    }

+  } else {

+    return port;

+  }

+}

+

+inline bool Server::listen_internal() {

+  auto ret = true;

+  is_running_ = true;

+

+  {

+    std::unique_ptr<TaskQueue> task_queue(new_task_queue());

+

+    while (svr_sock_ != INVALID_SOCKET) {

+#ifndef _WIN32

+      if (idle_interval_sec_ > 0 || idle_interval_usec_ > 0) {

+#endif

+        auto val = detail::select_read(svr_sock_, idle_interval_sec_,

+                                       idle_interval_usec_);

+        if (val == 0) { // Timeout

+          task_queue->on_idle();

+          continue;

+        }

+#ifndef _WIN32

+      }

+#endif

+      socket_t sock = accept(svr_sock_, nullptr, nullptr);

+

+      if (sock == INVALID_SOCKET) {

+        if (errno == EMFILE) {

+          // The per-process limit of open file descriptors has been reached.

+          // Try to accept new connections after a short sleep.

+          std::this_thread::sleep_for(std::chrono::milliseconds(1));

+          continue;

+        }

+        if (svr_sock_ != INVALID_SOCKET) {

+          detail::close_socket(svr_sock_);

+          ret = false;

+        } else {

+          ; // The server socket was closed by user.

+        }

+        break;

+      }

+

+      {

+        timeval tv;

+        tv.tv_sec = static_cast<long>(read_timeout_sec_);

+        tv.tv_usec = static_cast<decltype(tv.tv_usec)>(read_timeout_usec_);

+        setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (char *)&tv, sizeof(tv));

+      }

+      {

+        timeval tv;

+        tv.tv_sec = static_cast<long>(write_timeout_sec_);

+        tv.tv_usec = static_cast<decltype(tv.tv_usec)>(write_timeout_usec_);

+        setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (char *)&tv, sizeof(tv));

+      }

+

+#if __cplusplus > 201703L

+      task_queue->enqueue([=, this]() { process_and_close_socket(sock); });

+#else

+      task_queue->enqueue([=]() { process_and_close_socket(sock); });

+#endif

+    }

+

+    task_queue->shutdown();

+  }

+

+  is_running_ = false;

+  return ret;

+}

+

+inline bool Server::routing(Request &req, Response &res, Stream &strm) {

+  if (pre_routing_handler_ &&

+      pre_routing_handler_(req, res) == HandlerResponse::Handled) {

+    return true;

+  }

+

+  // File handler

+  bool is_head_request = req.method == "HEAD";

+  if ((req.method == "GET" || is_head_request) &&

+      handle_file_request(req, res, is_head_request)) {

+    return true;

+  }

+

+  if (detail::expect_content(req)) {

+    // Content reader handler

+    {

+      ContentReader reader(

+          [&](ContentReceiver receiver) {

+            return read_content_with_content_receiver(

+                strm, req, res, std::move(receiver), nullptr, nullptr);

+          },

+          [&](MultipartContentHeader header, ContentReceiver receiver) {

+            return read_content_with_content_receiver(strm, req, res, nullptr,

+                                                      std::move(header),

+                                                      std::move(receiver));

+          });

+

+      if (req.method == "POST") {

+        if (dispatch_request_for_content_reader(

+                req, res, std::move(reader),

+                post_handlers_for_content_reader_)) {

+          return true;

+        }

+      } else if (req.method == "PUT") {

+        if (dispatch_request_for_content_reader(

+                req, res, std::move(reader),

+                put_handlers_for_content_reader_)) {

+          return true;

+        }

+      } else if (req.method == "PATCH") {

+        if (dispatch_request_for_content_reader(

+                req, res, std::move(reader),

+                patch_handlers_for_content_reader_)) {

+          return true;

+        }

+      } else if (req.method == "DELETE") {

+        if (dispatch_request_for_content_reader(

+                req, res, std::move(reader),

+                delete_handlers_for_content_reader_)) {

+          return true;

+        }

+      }

+    }

+

+    // Read content into `req.body`

+    if (!read_content(strm, req, res)) { return false; }

+  }

+

+  // Regular handler

+  if (req.method == "GET" || req.method == "HEAD") {

+    return dispatch_request(req, res, get_handlers_);

+  } else if (req.method == "POST") {

+    return dispatch_request(req, res, post_handlers_);

+  } else if (req.method == "PUT") {

+    return dispatch_request(req, res, put_handlers_);

+  } else if (req.method == "DELETE") {

+    return dispatch_request(req, res, delete_handlers_);

+  } else if (req.method == "OPTIONS") {

+    return dispatch_request(req, res, options_handlers_);

+  } else if (req.method == "PATCH") {

+    return dispatch_request(req, res, patch_handlers_);

+  }

+

+  res.status = 400;

+  return false;

+}

+

+inline bool Server::dispatch_request(Request &req, Response &res,

+                                     const Handlers &handlers) {

+  for (const auto &x : handlers) {

+    const auto &pattern = x.first;

+    const auto &handler = x.second;

+

+    if (std::regex_match(req.path, req.matches, pattern)) {

+      handler(req, res);

+      return true;

+    }

+  }

+  return false;

+}

+

+inline void Server::apply_ranges(const Request &req, Response &res,

+                                 std::string &content_type,

+                                 std::string &boundary) {

+  if (req.ranges.size() > 1) {

+    boundary = detail::make_multipart_data_boundary();

+

+    auto it = res.headers.find("Content-Type");

+    if (it != res.headers.end()) {

+      content_type = it->second;

+      res.headers.erase(it);

+    }

+

+    res.headers.emplace("Content-Type",

+                        "multipart/byteranges; boundary=" + boundary);

+  }

+

+  auto type = detail::encoding_type(req, res);

+

+  if (res.body.empty()) {

+    if (res.content_length_ > 0) {

+      size_t length = 0;

+      if (req.ranges.empty()) {

+        length = res.content_length_;

+      } else if (req.ranges.size() == 1) {

+        auto offsets =

+            detail::get_range_offset_and_length(req, res.content_length_, 0);

+        auto offset = offsets.first;

+        length = offsets.second;

+        auto content_range = detail::make_content_range_header_field(

+            offset, length, res.content_length_);

+        res.set_header("Content-Range", content_range);

+      } else {

+        length = detail::get_multipart_ranges_data_length(req, res, boundary,

+                                                          content_type);

+      }

+      res.set_header("Content-Length", std::to_string(length));

+    } else {

+      if (res.content_provider_) {

+        if (res.is_chunked_content_provider_) {

+          res.set_header("Transfer-Encoding", "chunked");

+          if (type == detail::EncodingType::Gzip) {

+            res.set_header("Content-Encoding", "gzip");

+          } else if (type == detail::EncodingType::Brotli) {

+            res.set_header("Content-Encoding", "br");

+          }

+        }

+      }

+    }

+  } else {

+    if (req.ranges.empty()) {

+      ;

+    } else if (req.ranges.size() == 1) {

+      auto offsets =

+          detail::get_range_offset_and_length(req, res.body.size(), 0);

+      auto offset = offsets.first;

+      auto length = offsets.second;

+      auto content_range = detail::make_content_range_header_field(

+          offset, length, res.body.size());

+      res.set_header("Content-Range", content_range);

+      if (offset < res.body.size()) {

+        res.body = res.body.substr(offset, length);

+      } else {

+        res.body.clear();

+        res.status = 416;

+      }

+    } else {

+      std::string data;

+      if (detail::make_multipart_ranges_data(req, res, boundary, content_type,

+                                             data)) {

+        res.body.swap(data);

+      } else {

+        res.body.clear();

+        res.status = 416;

+      }

+    }

+

+    if (type != detail::EncodingType::None) {

+      std::unique_ptr<detail::compressor> compressor;

+      std::string content_encoding;

+

+      if (type == detail::EncodingType::Gzip) {

+#ifdef CPPHTTPLIB_ZLIB_SUPPORT

+        compressor = detail::make_unique<detail::gzip_compressor>();

+        content_encoding = "gzip";

+#endif

+      } else if (type == detail::EncodingType::Brotli) {

+#ifdef CPPHTTPLIB_BROTLI_SUPPORT

+        compressor = detail::make_unique<detail::brotli_compressor>();

+        content_encoding = "br";

+#endif

+      }

+

+      if (compressor) {

+        std::string compressed;

+        if (compressor->compress(res.body.data(), res.body.size(), true,

+                                 [&](const char *data, size_t data_len) {

+                                   compressed.append(data, data_len);

+                                   return true;

+                                 })) {

+          res.body.swap(compressed);

+          res.set_header("Content-Encoding", content_encoding);

+        }

+      }

+    }

+

+    auto length = std::to_string(res.body.size());

+    res.set_header("Content-Length", length);

+  }

+}

+

+inline bool Server::dispatch_request_for_content_reader(

+    Request &req, Response &res, ContentReader content_reader,

+    const HandlersForContentReader &handlers) {

+  for (const auto &x : handlers) {

+    const auto &pattern = x.first;

+    const auto &handler = x.second;

+

+    if (std::regex_match(req.path, req.matches, pattern)) {

+      handler(req, res, content_reader);

+      return true;

+    }

+  }

+  return false;

+}

+

+inline bool

+Server::process_request(Stream &strm, bool close_connection,

+                        bool &connection_closed,

+                        const std::function<void(Request &)> &setup_request) {

+  std::array<char, 2048> buf{};

+

+  detail::stream_line_reader line_reader(strm, buf.data(), buf.size());

+

+  // Connection has been closed on client

+  if (!line_reader.getline()) { return false; }

+

+  Request req;

+  Response res;

+

+  res.version = "HTTP/1.1";

+

+  for (const auto &header : default_headers_) {

+    if (res.headers.find(header.first) == res.headers.end()) {

+      res.headers.insert(header);

+    }

+  }

+

+#ifdef _WIN32

+  // TODO: Increase FD_SETSIZE statically (libzmq), dynamically (MySQL).

+#else

+#ifndef CPPHTTPLIB_USE_POLL

+  // Socket file descriptor exceeded FD_SETSIZE...

+  if (strm.socket() >= FD_SETSIZE) {

+    Headers dummy;

+    detail::read_headers(strm, dummy);

+    res.status = 500;

+    return write_response(strm, close_connection, req, res);

+  }

+#endif

+#endif

+

+  // Check if the request URI doesn't exceed the limit

+  if (line_reader.size() > CPPHTTPLIB_REQUEST_URI_MAX_LENGTH) {

+    Headers dummy;

+    detail::read_headers(strm, dummy);

+    res.status = 414;

+    return write_response(strm, close_connection, req, res);

+  }

+

+  // Request line and headers

+  if (!parse_request_line(line_reader.ptr(), req) ||

+      !detail::read_headers(strm, req.headers)) {

+    res.status = 400;

+    return write_response(strm, close_connection, req, res);

+  }

+

+  if (req.get_header_value("Connection") == "close") {

+    connection_closed = true;

+  }

+

+  if (req.version == "HTTP/1.0" &&

+      req.get_header_value("Connection") != "Keep-Alive") {

+    connection_closed = true;

+  }

+

+  strm.get_remote_ip_and_port(req.remote_addr, req.remote_port);

+  req.set_header("REMOTE_ADDR", req.remote_addr);

+  req.set_header("REMOTE_PORT", std::to_string(req.remote_port));

+

+  if (req.has_header("Range")) {

+    const auto &range_header_value = req.get_header_value("Range");

+    if (!detail::parse_range_header(range_header_value, req.ranges)) {

+      res.status = 416;

+      return write_response(strm, close_connection, req, res);

+    }

+  }

+

+  if (setup_request) { setup_request(req); }

+

+  if (req.get_header_value("Expect") == "100-continue") {

+    auto status = 100;

+    if (expect_100_continue_handler_) {

+      status = expect_100_continue_handler_(req, res);

+    }

+    switch (status) {

+    case 100:

+    case 417:

+      strm.write_format("HTTP/1.1 %d %s\r\n\r\n", status,

+                        detail::status_message(status));

+      break;

+    default: return write_response(strm, close_connection, req, res);

+    }

+  }

+

+  // Rounting

+  bool routed = false;

+  try {

+    routed = routing(req, res, strm);

+  } catch (std::exception &e) {

+    if (exception_handler_) {

+      exception_handler_(req, res, e);

+      routed = true;

+    } else {

+      res.status = 500;

+      res.set_header("EXCEPTION_WHAT", e.what());

+    }

+  } catch (...) {

+    res.status = 500;

+    res.set_header("EXCEPTION_WHAT", "UNKNOWN");

+  }

+

+  if (routed) {

+    if (res.status == -1) { res.status = req.ranges.empty() ? 200 : 206; }

+    return write_response_with_content(strm, close_connection, req, res);

+  } else {

+    if (res.status == -1) { res.status = 404; }

+    return write_response(strm, close_connection, req, res);

+  }

+}

+

+inline bool Server::is_valid() const { return true; }

+

+inline bool Server::process_and_close_socket(socket_t sock) {

+  auto ret = detail::process_server_socket(

+      sock, keep_alive_max_count_, keep_alive_timeout_sec_, read_timeout_sec_,

+      read_timeout_usec_, write_timeout_sec_, write_timeout_usec_,

+      [this](Stream &strm, bool close_connection, bool &connection_closed) {

+        return process_request(strm, close_connection, connection_closed,

+                               nullptr);

+      });

+

+  detail::shutdown_socket(sock);

+  detail::close_socket(sock);

+  return ret;

+}

+

+// HTTP client implementation

+inline ClientImpl::ClientImpl(const std::string &host)

+    : ClientImpl(host, 80, std::string(), std::string()) {}

+

+inline ClientImpl::ClientImpl(const std::string &host, int port)

+    : ClientImpl(host, port, std::string(), std::string()) {}

+

+inline ClientImpl::ClientImpl(const std::string &host, int port,

+                              const std::string &client_cert_path,

+                              const std::string &client_key_path)

+    : host_(host), port_(port),

+      host_and_port_(adjust_host_string(host) + ":" + std::to_string(port)),

+      client_cert_path_(client_cert_path), client_key_path_(client_key_path) {}

+

+inline ClientImpl::~ClientImpl() {

+  std::lock_guard<std::mutex> guard(socket_mutex_);

+  shutdown_socket(socket_);

+  close_socket(socket_);

+}

+

+inline bool ClientImpl::is_valid() const { return true; }

+

+inline void ClientImpl::copy_settings(const ClientImpl &rhs) {

+  client_cert_path_ = rhs.client_cert_path_;

+  client_key_path_ = rhs.client_key_path_;

+  connection_timeout_sec_ = rhs.connection_timeout_sec_;

+  read_timeout_sec_ = rhs.read_timeout_sec_;

+  read_timeout_usec_ = rhs.read_timeout_usec_;

+  write_timeout_sec_ = rhs.write_timeout_sec_;

+  write_timeout_usec_ = rhs.write_timeout_usec_;

+  basic_auth_username_ = rhs.basic_auth_username_;

+  basic_auth_password_ = rhs.basic_auth_password_;

+  bearer_token_auth_token_ = rhs.bearer_token_auth_token_;

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  digest_auth_username_ = rhs.digest_auth_username_;

+  digest_auth_password_ = rhs.digest_auth_password_;

+#endif

+  keep_alive_ = rhs.keep_alive_;

+  follow_location_ = rhs.follow_location_;

+  url_encode_ = rhs.url_encode_;

+  address_family_ = rhs.address_family_;

+  tcp_nodelay_ = rhs.tcp_nodelay_;

+  socket_options_ = rhs.socket_options_;

+  compress_ = rhs.compress_;

+  decompress_ = rhs.decompress_;

+  interface_ = rhs.interface_;

+  proxy_host_ = rhs.proxy_host_;

+  proxy_port_ = rhs.proxy_port_;

+  proxy_basic_auth_username_ = rhs.proxy_basic_auth_username_;

+  proxy_basic_auth_password_ = rhs.proxy_basic_auth_password_;

+  proxy_bearer_token_auth_token_ = rhs.proxy_bearer_token_auth_token_;

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  proxy_digest_auth_username_ = rhs.proxy_digest_auth_username_;

+  proxy_digest_auth_password_ = rhs.proxy_digest_auth_password_;

+#endif

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  ca_cert_file_path_ = rhs.ca_cert_file_path_;

+  ca_cert_dir_path_ = rhs.ca_cert_dir_path_;

+  ca_cert_store_ = rhs.ca_cert_store_;

+#endif

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  server_certificate_verification_ = rhs.server_certificate_verification_;

+#endif

+  logger_ = rhs.logger_;

+}

+

+inline socket_t ClientImpl::create_client_socket(Error &error) const {

+  if (!proxy_host_.empty() && proxy_port_ != -1) {

+    return detail::create_client_socket(

+        proxy_host_.c_str(), proxy_port_, address_family_, tcp_nodelay_,

+        socket_options_, connection_timeout_sec_, connection_timeout_usec_,

+        read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,

+        write_timeout_usec_, interface_, error);

+  }

+  return detail::create_client_socket(

+      host_.c_str(), port_, address_family_, tcp_nodelay_, socket_options_,

+      connection_timeout_sec_, connection_timeout_usec_, read_timeout_sec_,

+      read_timeout_usec_, write_timeout_sec_, write_timeout_usec_, interface_,

+      error);

+}

+

+inline bool ClientImpl::create_and_connect_socket(Socket &socket,

+                                                  Error &error) {

+  auto sock = create_client_socket(error);

+  if (sock == INVALID_SOCKET) { return false; }

+  socket.sock = sock;

+  return true;

+}

+

+inline void ClientImpl::shutdown_ssl(Socket & /*socket*/,

+                                     bool /*shutdown_gracefully*/) {

+  // If there are any requests in flight from threads other than us, then it's

+  // a thread-unsafe race because individual ssl* objects are not thread-safe.

+  assert(socket_requests_in_flight_ == 0 ||

+         socket_requests_are_from_thread_ == std::this_thread::get_id());

+}

+

+inline void ClientImpl::shutdown_socket(Socket &socket) {

+  if (socket.sock == INVALID_SOCKET) { return; }

+  detail::shutdown_socket(socket.sock);

+}

+

+inline void ClientImpl::close_socket(Socket &socket) {

+  // If there are requests in flight in another thread, usually closing

+  // the socket will be fine and they will simply receive an error when

+  // using the closed socket, but it is still a bug since rarely the OS

+  // may reassign the socket id to be used for a new socket, and then

+  // suddenly they will be operating on a live socket that is different

+  // than the one they intended!

+  assert(socket_requests_in_flight_ == 0 ||

+         socket_requests_are_from_thread_ == std::this_thread::get_id());

+

+  // It is also a bug if this happens while SSL is still active

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  assert(socket.ssl == nullptr);

+#endif

+  if (socket.sock == INVALID_SOCKET) { return; }

+  detail::close_socket(socket.sock);

+  socket.sock = INVALID_SOCKET;

+}

+

+inline bool ClientImpl::read_response_line(Stream &strm, const Request &req,

+                                           Response &res) {

+  std::array<char, 2048> buf;

+

+  detail::stream_line_reader line_reader(strm, buf.data(), buf.size());

+

+  if (!line_reader.getline()) { return false; }

+

+  const static std::regex re("(HTTP/1\\.[01]) (\\d{3})(?: (.*?))?\r\n");

+

+  std::cmatch m;

+  if (!std::regex_match(line_reader.ptr(), m, re)) {

+    return req.method == "CONNECT";

+  }

+  res.version = std::string(m[1]);

+  res.status = std::stoi(std::string(m[2]));

+  res.reason = std::string(m[3]);

+

+  // Ignore '100 Continue'

+  while (res.status == 100) {

+    if (!line_reader.getline()) { return false; } // CRLF

+    if (!line_reader.getline()) { return false; } // next response line

+

+    if (!std::regex_match(line_reader.ptr(), m, re)) { return false; }

+    res.version = std::string(m[1]);

+    res.status = std::stoi(std::string(m[2]));

+    res.reason = std::string(m[3]);

+  }

+

+  return true;

+}

+

+inline bool ClientImpl::send(Request &req, Response &res, Error &error) {

+  std::lock_guard<std::recursive_mutex> request_mutex_guard(request_mutex_);

+

+  {

+    std::lock_guard<std::mutex> guard(socket_mutex_);

+    // Set this to false immediately - if it ever gets set to true by the end of

+    // the request, we know another thread instructed us to close the socket.

+    socket_should_be_closed_when_request_is_done_ = false;

+

+    auto is_alive = false;

+    if (socket_.is_open()) {

+      is_alive = detail::select_write(socket_.sock, 0, 0) > 0;

+      if (!is_alive) {

+        // Attempt to avoid sigpipe by shutting down nongracefully if it seems

+        // like the other side has already closed the connection Also, there

+        // cannot be any requests in flight from other threads since we locked

+        // request_mutex_, so safe to close everything immediately

+        const bool shutdown_gracefully = false;

+        shutdown_ssl(socket_, shutdown_gracefully);

+        shutdown_socket(socket_);

+        close_socket(socket_);

+      }

+    }

+

+    if (!is_alive) {

+      if (!create_and_connect_socket(socket_, error)) { return false; }

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+      // TODO: refactoring

+      if (is_ssl()) {

+        auto &scli = static_cast<SSLClient &>(*this);

+        if (!proxy_host_.empty() && proxy_port_ != -1) {

+          bool success = false;

+          if (!scli.connect_with_proxy(socket_, res, success, error)) {

+            return success;

+          }

+        }

+

+        if (!scli.initialize_ssl(socket_, error)) { return false; }

+      }

+#endif

+    }

+

+    // Mark the current socket as being in use so that it cannot be closed by

+    // anyone else while this request is ongoing, even though we will be

+    // releasing the mutex.

+    if (socket_requests_in_flight_ > 1) {

+      assert(socket_requests_are_from_thread_ == std::this_thread::get_id());

+    }

+    socket_requests_in_flight_ += 1;

+    socket_requests_are_from_thread_ = std::this_thread::get_id();

+  }

+

+  for (const auto &header : default_headers_) {

+    if (req.headers.find(header.first) == req.headers.end()) {

+      req.headers.insert(header);

+    }

+  }

+

+  auto close_connection = !keep_alive_;

+  auto ret = process_socket(socket_, [&](Stream &strm) {

+    return handle_request(strm, req, res, close_connection, error);

+  });

+

+  // Briefly lock mutex in order to mark that a request is no longer ongoing

+  {

+    std::lock_guard<std::mutex> guard(socket_mutex_);

+    socket_requests_in_flight_ -= 1;

+    if (socket_requests_in_flight_ <= 0) {

+      assert(socket_requests_in_flight_ == 0);

+      socket_requests_are_from_thread_ = std::thread::id();

+    }

+

+    if (socket_should_be_closed_when_request_is_done_ || close_connection ||

+        !ret) {

+      shutdown_ssl(socket_, true);

+      shutdown_socket(socket_);

+      close_socket(socket_);

+    }

+  }

+

+  if (!ret) {

+    if (error == Error::Success) { error = Error::Unknown; }

+  }

+

+  return ret;

+}

+

+inline Result ClientImpl::send(const Request &req) {

+  auto req2 = req;

+  return send_(std::move(req2));

+}

+

+inline Result ClientImpl::send_(Request &&req) {

+  auto res = detail::make_unique<Response>();

+  auto error = Error::Success;

+  auto ret = send(req, *res, error);

+  return Result{ret ? std::move(res) : nullptr, error, std::move(req.headers)};

+}

+

+inline bool ClientImpl::handle_request(Stream &strm, Request &req,

+                                       Response &res, bool close_connection,

+                                       Error &error) {

+  if (req.path.empty()) {

+    error = Error::Connection;

+    return false;

+  }

+

+  auto req_save = req;

+

+  bool ret;

+

+  if (!is_ssl() && !proxy_host_.empty() && proxy_port_ != -1) {

+    auto req2 = req;

+    req2.path = "http://" + host_and_port_ + req.path;

+    ret = process_request(strm, req2, res, close_connection, error);

+    req = req2;

+    req.path = req_save.path;

+  } else {

+    ret = process_request(strm, req, res, close_connection, error);

+  }

+

+  if (!ret) { return false; }

+

+  if (300 < res.status && res.status < 400 && follow_location_) {

+    req = req_save;

+    ret = redirect(req, res, error);

+  }

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+  if ((res.status == 401 || res.status == 407) &&

+      req.authorization_count_ < 5) {

+    auto is_proxy = res.status == 407;

+    const auto &username =

+        is_proxy ? proxy_digest_auth_username_ : digest_auth_username_;

+    const auto &password =

+        is_proxy ? proxy_digest_auth_password_ : digest_auth_password_;

+

+    if (!username.empty() && !password.empty()) {

+      std::map<std::string, std::string> auth;

+      if (detail::parse_www_authenticate(res, auth, is_proxy)) {

+        Request new_req = req;

+        new_req.authorization_count_ += 1;

+        new_req.headers.erase(is_proxy ? "Proxy-Authorization"

+                                       : "Authorization");

+        new_req.headers.insert(detail::make_digest_authentication_header(

+            req, auth, new_req.authorization_count_, detail::random_string(10),

+            username, password, is_proxy));

+

+        Response new_res;

+

+        ret = send(new_req, new_res, error);

+        if (ret) { res = new_res; }

+      }

+    }

+  }

+#endif

+

+  return ret;

+}

+

+inline bool ClientImpl::redirect(Request &req, Response &res, Error &error) {

+  if (req.redirect_count_ == 0) {

+    error = Error::ExceedRedirectCount;

+    return false;

+  }

+

+  auto location = detail::decode_url(res.get_header_value("location"), true);

+  if (location.empty()) { return false; }

+

+  const static std::regex re(

+      R"((?:(https?):)?(?://(?:\[([\d:]+)\]|([^:/?#]+))(?::(\d+))?)?([^?#]*(?:\?[^#]*)?)(?:#.*)?)");

+

+  std::smatch m;

+  if (!std::regex_match(location, m, re)) { return false; }

+

+  auto scheme = is_ssl() ? "https" : "http";

+

+  auto next_scheme = m[1].str();

+  auto next_host = m[2].str();

+  if (next_host.empty()) { next_host = m[3].str(); }

+  auto port_str = m[4].str();

+  auto next_path = m[5].str();

+

+  auto next_port = port_;

+  if (!port_str.empty()) {

+    next_port = std::stoi(port_str);

+  } else if (!next_scheme.empty()) {

+    next_port = next_scheme == "https" ? 443 : 80;

+  }

+

+  if (next_scheme.empty()) { next_scheme = scheme; }

+  if (next_host.empty()) { next_host = host_; }

+  if (next_path.empty()) { next_path = "/"; }

+

+  if (next_scheme == scheme && next_host == host_ && next_port == port_) {

+    return detail::redirect(*this, req, res, next_path, location, error);

+  } else {

+    if (next_scheme == "https") {

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+      SSLClient cli(next_host.c_str(), next_port);

+      cli.copy_settings(*this);

+      if (ca_cert_store_) { cli.set_ca_cert_store(ca_cert_store_); }

+      return detail::redirect(cli, req, res, next_path, location, error);

+#else

+      return false;

+#endif

+    } else {

+      ClientImpl cli(next_host.c_str(), next_port);

+      cli.copy_settings(*this);

+      return detail::redirect(cli, req, res, next_path, location, error);

+    }

+  }

+}

+

+inline bool ClientImpl::write_content_with_provider(Stream &strm,

+                                                    const Request &req,

+                                                    Error &error) {

+  auto is_shutting_down = []() { return false; };

+

+  if (req.is_chunked_content_provider_) {

+    // TODO: Brotli suport

+    std::unique_ptr<detail::compressor> compressor;

+#ifdef CPPHTTPLIB_ZLIB_SUPPORT

+    if (compress_) {

+      compressor = detail::make_unique<detail::gzip_compressor>();

+    } else

+#endif

+    {

+      compressor = detail::make_unique<detail::nocompressor>();

+    }

+

+    return detail::write_content_chunked(strm, req.content_provider_,

+                                         is_shutting_down, *compressor, error);

+  } else {

+    return detail::write_content(strm, req.content_provider_, 0,

+                                 req.content_length_, is_shutting_down, error);

+  }

+} // namespace httplib

+

+inline bool ClientImpl::write_request(Stream &strm, Request &req,

+                                      bool close_connection, Error &error) {

+  // Prepare additional headers

+  if (close_connection) {

+    if (!req.has_header("Connection")) {

+      req.headers.emplace("Connection", "close");

+    }

+  }

+

+  if (!req.has_header("Host")) {

+    if (is_ssl()) {

+      if (port_ == 443) {

+        req.headers.emplace("Host", host_);

+      } else {

+        req.headers.emplace("Host", host_and_port_);

+      }

+    } else {

+      if (port_ == 80) {

+        req.headers.emplace("Host", host_);

+      } else {

+        req.headers.emplace("Host", host_and_port_);

+      }

+    }

+  }

+

+  if (!req.has_header("Accept")) { req.headers.emplace("Accept", "*/*"); }

+

+  if (!req.has_header("User-Agent")) {

+    req.headers.emplace("User-Agent", "cpp-httplib/0.9");

+  }

+

+  if (req.body.empty()) {

+    if (req.content_provider_) {

+      if (!req.is_chunked_content_provider_) {

+        if (!req.has_header("Content-Length")) {

+          auto length = std::to_string(req.content_length_);

+          req.headers.emplace("Content-Length", length);

+        }

+      }

+    } else {

+      if (req.method == "POST" || req.method == "PUT" ||

+          req.method == "PATCH") {

+        req.headers.emplace("Content-Length", "0");

+      }

+    }

+  } else {

+    if (!req.has_header("Content-Type")) {

+      req.headers.emplace("Content-Type", "text/plain");

+    }

+

+    if (!req.has_header("Content-Length")) {

+      auto length = std::to_string(req.body.size());

+      req.headers.emplace("Content-Length", length);

+    }

+  }

+

+  if (!basic_auth_password_.empty() || !basic_auth_username_.empty()) {

+    if (!req.has_header("Authorization")) {

+      req.headers.insert(make_basic_authentication_header(

+          basic_auth_username_, basic_auth_password_, false));

+    }

+  }

+

+  if (!proxy_basic_auth_username_.empty() &&

+      !proxy_basic_auth_password_.empty()) {

+    if (!req.has_header("Proxy-Authorization")) {

+      req.headers.insert(make_basic_authentication_header(

+          proxy_basic_auth_username_, proxy_basic_auth_password_, true));

+    }

+  }

+

+  if (!bearer_token_auth_token_.empty()) {

+    if (!req.has_header("Authorization")) {

+      req.headers.insert(make_bearer_token_authentication_header(

+          bearer_token_auth_token_, false));

+    }

+  }

+

+  if (!proxy_bearer_token_auth_token_.empty()) {

+    if (!req.has_header("Proxy-Authorization")) {

+      req.headers.insert(make_bearer_token_authentication_header(

+          proxy_bearer_token_auth_token_, true));

+    }

+  }

+

+  // Request line and headers

+  {

+    detail::BufferStream bstrm;

+

+    const auto &path = url_encode_ ? detail::encode_url(req.path) : req.path;

+    bstrm.write_format("%s %s HTTP/1.1\r\n", req.method.c_str(), path.c_str());

+

+    detail::write_headers(bstrm, req.headers);

+

+    // Flush buffer

+    auto &data = bstrm.get_buffer();

+    if (!detail::write_data(strm, data.data(), data.size())) {

+      error = Error::Write;

+      return false;

+    }

+  }

+

+  // Body

+  if (req.body.empty()) {

+    return write_content_with_provider(strm, req, error);

+  }

+

+  return detail::write_data(strm, req.body.data(), req.body.size());

+}

+

+inline std::unique_ptr<Response> ClientImpl::send_with_content_provider(

+    Request &req,

+    // const char *method, const char *path, const Headers &headers,

+    const char *body, size_t content_length, ContentProvider content_provider,

+    ContentProviderWithoutLength content_provider_without_length,

+    const char *content_type, Error &error) {

+

+  // Request req;

+  // req.method = method;

+  // req.headers = headers;

+  // req.path = path;

+

+  if (content_type) { req.headers.emplace("Content-Type", content_type); }

+

+#ifdef CPPHTTPLIB_ZLIB_SUPPORT

+  if (compress_) { req.headers.emplace("Content-Encoding", "gzip"); }

+#endif

+

+#ifdef CPPHTTPLIB_ZLIB_SUPPORT

+  if (compress_ && !content_provider_without_length) {

+    // TODO: Brotli support

+    detail::gzip_compressor compressor;

+

+    if (content_provider) {

+      auto ok = true;

+      size_t offset = 0;

+      DataSink data_sink;

+

+      data_sink.write = [&](const char *data, size_t data_len) -> bool {

+        if (ok) {

+          auto last = offset + data_len == content_length;

+

+          auto ret = compressor.compress(

+              data, data_len, last, [&](const char *data, size_t data_len) {

+                req.body.append(data, data_len);

+                return true;

+              });

+

+          if (ret) {

+            offset += data_len;

+          } else {

+            ok = false;

+          }

+        }

+        return ok;

+      };

+

+      data_sink.is_writable = [&](void) { return ok && true; };

+

+      while (ok && offset < content_length) {

+        if (!content_provider(offset, content_length - offset, data_sink)) {

+          error = Error::Canceled;

+          return nullptr;

+        }

+      }

+    } else {

+      if (!compressor.compress(body, content_length, true,

+                               [&](const char *data, size_t data_len) {

+                                 req.body.append(data, data_len);

+                                 return true;

+                               })) {

+        error = Error::Compression;

+        return nullptr;

+      }

+    }

+  } else

+#endif

+  {

+    if (content_provider) {

+      req.content_length_ = content_length;

+      req.content_provider_ = std::move(content_provider);

+      req.is_chunked_content_provider_ = false;

+    } else if (content_provider_without_length) {

+      req.content_length_ = 0;

+      req.content_provider_ = detail::ContentProviderAdapter(

+          std::move(content_provider_without_length));

+      req.is_chunked_content_provider_ = true;

+      req.headers.emplace("Transfer-Encoding", "chunked");

+    } else {

+      req.body.assign(body, content_length);

+      ;

+    }

+  }

+

+  auto res = detail::make_unique<Response>();

+  return send(req, *res, error) ? std::move(res) : nullptr;

+}

+

+inline Result ClientImpl::send_with_content_provider(

+    const char *method, const char *path, const Headers &headers,

+    const char *body, size_t content_length, ContentProvider content_provider,

+    ContentProviderWithoutLength content_provider_without_length,

+    const char *content_type) {

+  Request req;

+  req.method = method;

+  req.headers = headers;

+  req.path = path;

+

+  auto error = Error::Success;

+

+  auto res = send_with_content_provider(

+      req,

+      // method, path, headers,

+      body, content_length, std::move(content_provider),

+      std::move(content_provider_without_length), content_type, error);

+

+  return Result{std::move(res), error, std::move(req.headers)};

+}

+

+inline std::string

+ClientImpl::adjust_host_string(const std::string &host) const {

+  if (host.find(':') != std::string::npos) { return "[" + host + "]"; }

+  return host;

+}

+

+inline bool ClientImpl::process_request(Stream &strm, Request &req,

+                                        Response &res, bool close_connection,

+                                        Error &error) {

+  // Send request

+  if (!write_request(strm, req, close_connection, error)) { return false; }

+

+  // Receive response and headers

+  if (!read_response_line(strm, req, res) ||

+      !detail::read_headers(strm, res.headers)) {

+    error = Error::Read;

+    return false;

+  }

+

+  // Body

+  if ((res.status != 204) && req.method != "HEAD" && req.method != "CONNECT") {

+    auto redirect = 300 < res.status && res.status < 400 && follow_location_;

+

+    if (req.response_handler && !redirect) {

+      if (!req.response_handler(res)) {

+        error = Error::Canceled;

+        return false;

+      }

+    }

+

+    auto out =

+        req.content_receiver

+            ? static_cast<ContentReceiverWithProgress>(

+                  [&](const char *buf, size_t n, uint64_t off, uint64_t len) {

+                    if (redirect) { return true; }

+                    auto ret = req.content_receiver(buf, n, off, len);

+                    if (!ret) { error = Error::Canceled; }

+                    return ret;

+                  })

+            : static_cast<ContentReceiverWithProgress>(

+                  [&](const char *buf, size_t n, uint64_t /*off*/,

+                      uint64_t /*len*/) {

+                    if (res.body.size() + n > res.body.max_size()) {

+                      return false;

+                    }

+                    res.body.append(buf, n);

+                    return true;

+                  });

+

+    auto progress = [&](uint64_t current, uint64_t total) {

+      if (!req.progress || redirect) { return true; }

+      auto ret = req.progress(current, total);

+      if (!ret) { error = Error::Canceled; }

+      return ret;

+    };

+

+    int dummy_status;

+    if (!detail::read_content(strm, res, (std::numeric_limits<size_t>::max)(),

+                              dummy_status, std::move(progress), std::move(out),

+                              decompress_)) {

+      if (error != Error::Canceled) { error = Error::Read; }

+      return false;

+    }

+  }

+

+  if (res.get_header_value("Connection") == "close" ||

+      (res.version == "HTTP/1.0" && res.reason != "Connection established")) {

+    // TODO this requires a not-entirely-obvious chain of calls to be correct

+    // for this to be safe. Maybe a code refactor (such as moving this out to

+    // the send function and getting rid of the recursiveness of the mutex)

+    // could make this more obvious.

+

+    // This is safe to call because process_request is only called by

+    // handle_request which is only called by send, which locks the request

+    // mutex during the process. It would be a bug to call it from a different

+    // thread since it's a thread-safety issue to do these things to the socket

+    // if another thread is using the socket.

+    std::lock_guard<std::mutex> guard(socket_mutex_);

+    shutdown_ssl(socket_, true);

+    shutdown_socket(socket_);

+    close_socket(socket_);

+  }

+

+  // Log

+  if (logger_) { logger_(req, res); }

+

+  return true;

+}

+

+inline bool

+ClientImpl::process_socket(const Socket &socket,

+                           std::function<bool(Stream &strm)> callback) {

+  return detail::process_client_socket(

+      socket.sock, read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,

+      write_timeout_usec_, std::move(callback));

+}

+

+inline bool ClientImpl::is_ssl() const { return false; }

+

+inline Result ClientImpl::Get(const char *path) {

+  return Get(path, Headers(), Progress());

+}

+

+inline Result ClientImpl::Get(const char *path, Progress progress) {

+  return Get(path, Headers(), std::move(progress));

+}

+

+inline Result ClientImpl::Get(const char *path, const Headers &headers) {

+  return Get(path, headers, Progress());

+}

+

+inline Result ClientImpl::Get(const char *path, const Headers &headers,

+                              Progress progress) {

+  Request req;

+  req.method = "GET";

+  req.path = path;

+  req.headers = headers;

+  req.progress = std::move(progress);

+

+  return send_(std::move(req));

+}

+

+inline Result ClientImpl::Get(const char *path,

+                              ContentReceiver content_receiver) {

+  return Get(path, Headers(), nullptr, std::move(content_receiver), nullptr);

+}

+

+inline Result ClientImpl::Get(const char *path,

+                              ContentReceiver content_receiver,

+                              Progress progress) {

+  return Get(path, Headers(), nullptr, std::move(content_receiver),

+             std::move(progress));

+}

+

+inline Result ClientImpl::Get(const char *path, const Headers &headers,

+                              ContentReceiver content_receiver) {

+  return Get(path, headers, nullptr, std::move(content_receiver), nullptr);

+}

+

+inline Result ClientImpl::Get(const char *path, const Headers &headers,

+                              ContentReceiver content_receiver,

+                              Progress progress) {

+  return Get(path, headers, nullptr, std::move(content_receiver),

+             std::move(progress));

+}

+

+inline Result ClientImpl::Get(const char *path,

+                              ResponseHandler response_handler,

+                              ContentReceiver content_receiver) {

+  return Get(path, Headers(), std::move(response_handler),

+             std::move(content_receiver), nullptr);

+}

+

+inline Result ClientImpl::Get(const char *path, const Headers &headers,

+                              ResponseHandler response_handler,

+                              ContentReceiver content_receiver) {

+  return Get(path, headers, std::move(response_handler),

+             std::move(content_receiver), nullptr);

+}

+

+inline Result ClientImpl::Get(const char *path,

+                              ResponseHandler response_handler,

+                              ContentReceiver content_receiver,

+                              Progress progress) {

+  return Get(path, Headers(), std::move(response_handler),

+             std::move(content_receiver), std::move(progress));

+}

+

+inline Result ClientImpl::Get(const char *path, const Headers &headers,

+                              ResponseHandler response_handler,

+                              ContentReceiver content_receiver,

+                              Progress progress) {

+  Request req;

+  req.method = "GET";

+  req.path = path;

+  req.headers = headers;

+  req.response_handler = std::move(response_handler);

+  req.content_receiver =

+      [content_receiver](const char *data, size_t data_length,

+                         uint64_t /*offset*/, uint64_t /*total_length*/) {

+        return content_receiver(data, data_length);

+      };

+  req.progress = std::move(progress);

+

+  return send_(std::move(req));

+}

+

+inline Result ClientImpl::Get(const char *path, const Params &params,

+                              const Headers &headers, Progress progress) {

+  if (params.empty()) { return Get(path, headers); }

+

+  std::string path_with_query = detail::append_query_params(path, params);

+  return Get(path_with_query.c_str(), headers, progress);

+}

+

+inline Result ClientImpl::Get(const char *path, const Params &params,

+                              const Headers &headers,

+                              ContentReceiver content_receiver,

+                              Progress progress) {

+  return Get(path, params, headers, nullptr, content_receiver, progress);

+}

+

+inline Result ClientImpl::Get(const char *path, const Params &params,

+                              const Headers &headers,

+                              ResponseHandler response_handler,

+                              ContentReceiver content_receiver,

+                              Progress progress) {

+  if (params.empty()) {

+    return Get(path, headers, response_handler, content_receiver, progress);

+  }

+

+  std::string path_with_query = detail::append_query_params(path, params);

+  return Get(path_with_query.c_str(), headers, response_handler,

+             content_receiver, progress);

+}

+

+inline Result ClientImpl::Head(const char *path) {

+  return Head(path, Headers());

+}

+

+inline Result ClientImpl::Head(const char *path, const Headers &headers) {

+  Request req;

+  req.method = "HEAD";

+  req.headers = headers;

+  req.path = path;

+

+  return send_(std::move(req));

+}

+

+inline Result ClientImpl::Post(const char *path) {

+  return Post(path, std::string(), nullptr);

+}

+

+inline Result ClientImpl::Post(const char *path, const char *body,

+                               size_t content_length,

+                               const char *content_type) {

+  return Post(path, Headers(), body, content_length, content_type);

+}

+

+inline Result ClientImpl::Post(const char *path, const Headers &headers,

+                               const char *body, size_t content_length,

+                               const char *content_type) {

+  return send_with_content_provider("POST", path, headers, body, content_length,

+                                    nullptr, nullptr, content_type);

+}

+

+inline Result ClientImpl::Post(const char *path, const std::string &body,

+                               const char *content_type) {

+  return Post(path, Headers(), body, content_type);

+}

+

+inline Result ClientImpl::Post(const char *path, const Headers &headers,

+                               const std::string &body,

+                               const char *content_type) {

+  return send_with_content_provider("POST", path, headers, body.data(),

+                                    body.size(), nullptr, nullptr,

+                                    content_type);

+}

+

+inline Result ClientImpl::Post(const char *path, const Params &params) {

+  return Post(path, Headers(), params);

+}

+

+inline Result ClientImpl::Post(const char *path, size_t content_length,

+                               ContentProvider content_provider,

+                               const char *content_type) {

+  return Post(path, Headers(), content_length, std::move(content_provider),

+              content_type);

+}

+

+inline Result ClientImpl::Post(const char *path,

+                               ContentProviderWithoutLength content_provider,

+                               const char *content_type) {

+  return Post(path, Headers(), std::move(content_provider), content_type);

+}

+

+inline Result ClientImpl::Post(const char *path, const Headers &headers,

+                               size_t content_length,

+                               ContentProvider content_provider,

+                               const char *content_type) {

+  return send_with_content_provider("POST", path, headers, nullptr,

+                                    content_length, std::move(content_provider),

+                                    nullptr, content_type);

+}

+

+inline Result ClientImpl::Post(const char *path, const Headers &headers,

+                               ContentProviderWithoutLength content_provider,

+                               const char *content_type) {

+  return send_with_content_provider("POST", path, headers, nullptr, 0, nullptr,

+                                    std::move(content_provider), content_type);

+}

+

+inline Result ClientImpl::Post(const char *path, const Headers &headers,

+                               const Params &params) {

+  auto query = detail::params_to_query_str(params);

+  return Post(path, headers, query, "application/x-www-form-urlencoded");

+}

+

+inline Result ClientImpl::Post(const char *path,

+                               const MultipartFormDataItems &items) {

+  return Post(path, Headers(), items);

+}

+

+inline Result ClientImpl::Post(const char *path, const Headers &headers,

+                               const MultipartFormDataItems &items) {

+  return Post(path, headers, items, detail::make_multipart_data_boundary());

+}

+inline Result ClientImpl::Post(const char *path, const Headers &headers,

+                               const MultipartFormDataItems &items,

+                               const std::string &boundary) {

+  for (size_t i = 0; i < boundary.size(); i++) {

+    char c = boundary[i];

+    if (!std::isalnum(c) && c != '-' && c != '_') {

+      return Result{nullptr, Error::UnsupportedMultipartBoundaryChars};

+    }

+  }

+

+  std::string body;

+

+  for (const auto &item : items) {

+    body += "--" + boundary + "\r\n";

+    body += "Content-Disposition: form-data; name=\"" + item.name + "\"";

+    if (!item.filename.empty()) {

+      body += "; filename=\"" + item.filename + "\"";

+    }

+    body += "\r\n";

+    if (!item.content_type.empty()) {

+      body += "Content-Type: " + item.content_type + "\r\n";

+    }

+    body += "\r\n";

+    body += item.content + "\r\n";

+  }

+

+  body += "--" + boundary + "--\r\n";

+

+  std::string content_type = "multipart/form-data; boundary=" + boundary;

+  return Post(path, headers, body, content_type.c_str());

+}

+

+inline Result ClientImpl::Put(const char *path) {

+  return Put(path, std::string(), nullptr);

+}

+

+inline Result ClientImpl::Put(const char *path, const char *body,

+                              size_t content_length, const char *content_type) {

+  return Put(path, Headers(), body, content_length, content_type);

+}

+

+inline Result ClientImpl::Put(const char *path, const Headers &headers,

+                              const char *body, size_t content_length,

+                              const char *content_type) {

+  return send_with_content_provider("PUT", path, headers, body, content_length,

+                                    nullptr, nullptr, content_type);

+}

+

+inline Result ClientImpl::Put(const char *path, const std::string &body,

+                              const char *content_type) {

+  return Put(path, Headers(), body, content_type);

+}

+

+inline Result ClientImpl::Put(const char *path, const Headers &headers,

+                              const std::string &body,

+                              const char *content_type) {

+  return send_with_content_provider("PUT", path, headers, body.data(),

+                                    body.size(), nullptr, nullptr,

+                                    content_type);

+}

+

+inline Result ClientImpl::Put(const char *path, size_t content_length,

+                              ContentProvider content_provider,

+                              const char *content_type) {

+  return Put(path, Headers(), content_length, std::move(content_provider),

+             content_type);

+}

+

+inline Result ClientImpl::Put(const char *path,

+                              ContentProviderWithoutLength content_provider,

+                              const char *content_type) {

+  return Put(path, Headers(), std::move(content_provider), content_type);

+}

+

+inline Result ClientImpl::Put(const char *path, const Headers &headers,

+                              size_t content_length,

+                              ContentProvider content_provider,

+                              const char *content_type) {

+  return send_with_content_provider("PUT", path, headers, nullptr,

+                                    content_length, std::move(content_provider),

+                                    nullptr, content_type);

+}

+

+inline Result ClientImpl::Put(const char *path, const Headers &headers,

+                              ContentProviderWithoutLength content_provider,

+                              const char *content_type) {

+  return send_with_content_provider("PUT", path, headers, nullptr, 0, nullptr,

+                                    std::move(content_provider), content_type);

+}

+

+inline Result ClientImpl::Put(const char *path, const Params &params) {

+  return Put(path, Headers(), params);

+}

+

+inline Result ClientImpl::Put(const char *path, const Headers &headers,

+                              const Params &params) {

+  auto query = detail::params_to_query_str(params);

+  return Put(path, headers, query, "application/x-www-form-urlencoded");

+}

+

+inline Result ClientImpl::Patch(const char *path) {

+  return Patch(path, std::string(), nullptr);

+}

+

+inline Result ClientImpl::Patch(const char *path, const char *body,

+                                size_t content_length,

+                                const char *content_type) {

+  return Patch(path, Headers(), body, content_length, content_type);

+}

+

+inline Result ClientImpl::Patch(const char *path, const Headers &headers,

+                                const char *body, size_t content_length,

+                                const char *content_type) {

+  return send_with_content_provider("PATCH", path, headers, body,

+                                    content_length, nullptr, nullptr,

+                                    content_type);

+}

+

+inline Result ClientImpl::Patch(const char *path, const std::string &body,

+                                const char *content_type) {

+  return Patch(path, Headers(), body, content_type);

+}

+

+inline Result ClientImpl::Patch(const char *path, const Headers &headers,

+                                const std::string &body,

+                                const char *content_type) {

+  return send_with_content_provider("PATCH", path, headers, body.data(),

+                                    body.size(), nullptr, nullptr,

+                                    content_type);

+}

+

+inline Result ClientImpl::Patch(const char *path, size_t content_length,

+                                ContentProvider content_provider,

+                                const char *content_type) {

+  return Patch(path, Headers(), content_length, std::move(content_provider),

+               content_type);

+}

+

+inline Result ClientImpl::Patch(const char *path,

+                                ContentProviderWithoutLength content_provider,

+                                const char *content_type) {

+  return Patch(path, Headers(), std::move(content_provider), content_type);

+}

+

+inline Result ClientImpl::Patch(const char *path, const Headers &headers,

+                                size_t content_length,

+                                ContentProvider content_provider,

+                                const char *content_type) {

+  return send_with_content_provider("PATCH", path, headers, nullptr,

+                                    content_length, std::move(content_provider),

+                                    nullptr, content_type);

+}

+

+inline Result ClientImpl::Patch(const char *path, const Headers &headers,

+                                ContentProviderWithoutLength content_provider,

+                                const char *content_type) {

+  return send_with_content_provider("PATCH", path, headers, nullptr, 0, nullptr,

+                                    std::move(content_provider), content_type);

+}

+

+inline Result ClientImpl::Delete(const char *path) {

+  return Delete(path, Headers(), std::string(), nullptr);

+}

+

+inline Result ClientImpl::Delete(const char *path, const Headers &headers) {

+  return Delete(path, headers, std::string(), nullptr);

+}

+

+inline Result ClientImpl::Delete(const char *path, const char *body,

+                                 size_t content_length,

+                                 const char *content_type) {

+  return Delete(path, Headers(), body, content_length, content_type);

+}

+

+inline Result ClientImpl::Delete(const char *path, const Headers &headers,

+                                 const char *body, size_t content_length,

+                                 const char *content_type) {

+  Request req;

+  req.method = "DELETE";

+  req.headers = headers;

+  req.path = path;

+

+  if (content_type) { req.headers.emplace("Content-Type", content_type); }

+  req.body.assign(body, content_length);

+

+  return send_(std::move(req));

+}

+

+inline Result ClientImpl::Delete(const char *path, const std::string &body,

+                                 const char *content_type) {

+  return Delete(path, Headers(), body.data(), body.size(), content_type);

+}

+

+inline Result ClientImpl::Delete(const char *path, const Headers &headers,

+                                 const std::string &body,

+                                 const char *content_type) {

+  return Delete(path, headers, body.data(), body.size(), content_type);

+}

+

+inline Result ClientImpl::Options(const char *path) {

+  return Options(path, Headers());

+}

+

+inline Result ClientImpl::Options(const char *path, const Headers &headers) {

+  Request req;

+  req.method = "OPTIONS";

+  req.headers = headers;

+  req.path = path;

+

+  return send_(std::move(req));

+}

+

+inline size_t ClientImpl::is_socket_open() const {

+  std::lock_guard<std::mutex> guard(socket_mutex_);

+  return socket_.is_open();

+}

+

+inline void ClientImpl::stop() {

+  std::lock_guard<std::mutex> guard(socket_mutex_);

+

+  // If there is anything ongoing right now, the ONLY thread-safe thing we can

+  // do is to shutdown_socket, so that threads using this socket suddenly

+  // discover they can't read/write any more and error out. Everything else

+  // (closing the socket, shutting ssl down) is unsafe because these actions are

+  // not thread-safe.

+  if (socket_requests_in_flight_ > 0) {

+    shutdown_socket(socket_);

+

+    // Aside from that, we set a flag for the socket to be closed when we're

+    // done.

+    socket_should_be_closed_when_request_is_done_ = true;

+    return;

+  }

+

+  // Otherwise, sitll holding the mutex, we can shut everything down ourselves

+  shutdown_ssl(socket_, true);

+  shutdown_socket(socket_);

+  close_socket(socket_);

+}

+

+inline void ClientImpl::set_connection_timeout(time_t sec, time_t usec) {

+  connection_timeout_sec_ = sec;

+  connection_timeout_usec_ = usec;

+}

+

+inline void ClientImpl::set_read_timeout(time_t sec, time_t usec) {

+  read_timeout_sec_ = sec;

+  read_timeout_usec_ = usec;

+}

+

+inline void ClientImpl::set_write_timeout(time_t sec, time_t usec) {

+  write_timeout_sec_ = sec;

+  write_timeout_usec_ = usec;

+}

+

+inline void ClientImpl::set_basic_auth(const char *username,

+                                       const char *password) {

+  basic_auth_username_ = username;

+  basic_auth_password_ = password;

+}

+

+inline void ClientImpl::set_bearer_token_auth(const char *token) {

+  bearer_token_auth_token_ = token;

+}

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+inline void ClientImpl::set_digest_auth(const char *username,

+                                        const char *password) {

+  digest_auth_username_ = username;

+  digest_auth_password_ = password;

+}

+#endif

+

+inline void ClientImpl::set_keep_alive(bool on) { keep_alive_ = on; }

+

+inline void ClientImpl::set_follow_location(bool on) { follow_location_ = on; }

+

+inline void ClientImpl::set_url_encode(bool on) { url_encode_ = on; }

+

+inline void ClientImpl::set_default_headers(Headers headers) {

+  default_headers_ = std::move(headers);

+}

+

+inline void ClientImpl::set_address_family(int family) {

+  address_family_ = family;

+}

+

+inline void ClientImpl::set_tcp_nodelay(bool on) { tcp_nodelay_ = on; }

+

+inline void ClientImpl::set_socket_options(SocketOptions socket_options) {

+  socket_options_ = std::move(socket_options);

+}

+

+inline void ClientImpl::set_compress(bool on) { compress_ = on; }

+

+inline void ClientImpl::set_decompress(bool on) { decompress_ = on; }

+

+inline void ClientImpl::set_interface(const char *intf) { interface_ = intf; }

+

+inline void ClientImpl::set_proxy(const char *host, int port) {

+  proxy_host_ = host;

+  proxy_port_ = port;

+}

+

+inline void ClientImpl::set_proxy_basic_auth(const char *username,

+                                             const char *password) {

+  proxy_basic_auth_username_ = username;

+  proxy_basic_auth_password_ = password;

+}

+

+inline void ClientImpl::set_proxy_bearer_token_auth(const char *token) {

+  proxy_bearer_token_auth_token_ = token;

+}

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+inline void ClientImpl::set_proxy_digest_auth(const char *username,

+                                              const char *password) {

+  proxy_digest_auth_username_ = username;

+  proxy_digest_auth_password_ = password;

+}

+#endif

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+inline void ClientImpl::set_ca_cert_path(const char *ca_cert_file_path,

+                                         const char *ca_cert_dir_path) {

+  if (ca_cert_file_path) { ca_cert_file_path_ = ca_cert_file_path; }

+  if (ca_cert_dir_path) { ca_cert_dir_path_ = ca_cert_dir_path; }

+}

+

+inline void ClientImpl::set_ca_cert_store(X509_STORE *ca_cert_store) {

+  if (ca_cert_store && ca_cert_store != ca_cert_store_) {

+    ca_cert_store_ = ca_cert_store;

+  }

+}

+#endif

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+inline void ClientImpl::enable_server_certificate_verification(bool enabled) {

+  server_certificate_verification_ = enabled;

+}

+#endif

+

+inline void ClientImpl::set_logger(Logger logger) {

+  logger_ = std::move(logger);

+}

+

+/*

+ * SSL Implementation

+ */

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+namespace detail {

+

+template <typename U, typename V>

+inline SSL *ssl_new(socket_t sock, SSL_CTX *ctx, std::mutex &ctx_mutex,

+                    U SSL_connect_or_accept, V setup) {

+  SSL *ssl = nullptr;

+  {

+    std::lock_guard<std::mutex> guard(ctx_mutex);

+    ssl = SSL_new(ctx);

+  }

+

+  if (ssl) {

+    set_nonblocking(sock, true);

+    auto bio = BIO_new_socket(static_cast<int>(sock), BIO_NOCLOSE);

+    BIO_set_nbio(bio, 1);

+    SSL_set_bio(ssl, bio, bio);

+

+    if (!setup(ssl) || SSL_connect_or_accept(ssl) != 1) {

+      SSL_shutdown(ssl);

+      {

+        std::lock_guard<std::mutex> guard(ctx_mutex);

+        SSL_free(ssl);

+      }

+      set_nonblocking(sock, false);

+      return nullptr;

+    }

+    BIO_set_nbio(bio, 0);

+    set_nonblocking(sock, false);

+  }

+

+  return ssl;

+}

+

+inline void ssl_delete(std::mutex &ctx_mutex, SSL *ssl,

+                       bool shutdown_gracefully) {

+  // sometimes we may want to skip this to try to avoid SIGPIPE if we know

+  // the remote has closed the network connection

+  // Note that it is not always possible to avoid SIGPIPE, this is merely a

+  // best-efforts.

+  if (shutdown_gracefully) { SSL_shutdown(ssl); }

+

+  std::lock_guard<std::mutex> guard(ctx_mutex);

+  SSL_free(ssl);

+}

+

+template <typename U>

+bool ssl_connect_or_accept_nonblocking(socket_t sock, SSL *ssl,

+                                       U ssl_connect_or_accept,

+                                       time_t timeout_sec,

+                                       time_t timeout_usec) {

+  int res = 0;

+  while ((res = ssl_connect_or_accept(ssl)) != 1) {

+    auto err = SSL_get_error(ssl, res);

+    switch (err) {

+    case SSL_ERROR_WANT_READ:

+      if (select_read(sock, timeout_sec, timeout_usec) > 0) { continue; }

+      break;

+    case SSL_ERROR_WANT_WRITE:

+      if (select_write(sock, timeout_sec, timeout_usec) > 0) { continue; }

+      break;

+    default: break;

+    }

+    return false;

+  }

+  return true;

+}

+

+template <typename T>

+inline bool

+process_server_socket_ssl(SSL *ssl, socket_t sock, size_t keep_alive_max_count,

+                          time_t keep_alive_timeout_sec,

+                          time_t read_timeout_sec, time_t read_timeout_usec,

+                          time_t write_timeout_sec, time_t write_timeout_usec,

+                          T callback) {

+  return process_server_socket_core(

+      sock, keep_alive_max_count, keep_alive_timeout_sec,

+      [&](bool close_connection, bool &connection_closed) {

+        SSLSocketStream strm(sock, ssl, read_timeout_sec, read_timeout_usec,

+                             write_timeout_sec, write_timeout_usec);

+        return callback(strm, close_connection, connection_closed);

+      });

+}

+

+template <typename T>

+inline bool

+process_client_socket_ssl(SSL *ssl, socket_t sock, time_t read_timeout_sec,

+                          time_t read_timeout_usec, time_t write_timeout_sec,

+                          time_t write_timeout_usec, T callback) {

+  SSLSocketStream strm(sock, ssl, read_timeout_sec, read_timeout_usec,

+                       write_timeout_sec, write_timeout_usec);

+  return callback(strm);

+}

+

+#if OPENSSL_VERSION_NUMBER < 0x10100000L

+static std::shared_ptr<std::vector<std::mutex>> openSSL_locks_;

+

+class SSLThreadLocks {

+public:

+  SSLThreadLocks() {

+    openSSL_locks_ =

+        std::make_shared<std::vector<std::mutex>>(CRYPTO_num_locks());

+    CRYPTO_set_locking_callback(locking_callback);

+  }

+

+  ~SSLThreadLocks() { CRYPTO_set_locking_callback(nullptr); }

+

+private:

+  static void locking_callback(int mode, int type, const char * /*file*/,

+                               int /*line*/) {

+    auto &lk = (*openSSL_locks_)[static_cast<size_t>(type)];

+    if (mode & CRYPTO_LOCK) {

+      lk.lock();

+    } else {

+      lk.unlock();

+    }

+  }

+};

+

+#endif

+

+class SSLInit {

+public:

+  SSLInit() {

+#if OPENSSL_VERSION_NUMBER < 0x1010001fL

+    SSL_load_error_strings();

+    SSL_library_init();

+#else

+    OPENSSL_init_ssl(

+        OPENSSL_INIT_LOAD_SSL_STRINGS | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);

+#endif

+  }

+

+  ~SSLInit() {

+#if OPENSSL_VERSION_NUMBER < 0x1010001fL

+    ERR_free_strings();

+#endif

+  }

+

+private:

+#if OPENSSL_VERSION_NUMBER < 0x10100000L

+  SSLThreadLocks thread_init_;

+#endif

+};

+

+// SSL socket stream implementation

+inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL *ssl,

+                                        time_t read_timeout_sec,

+                                        time_t read_timeout_usec,

+                                        time_t write_timeout_sec,

+                                        time_t write_timeout_usec)

+    : sock_(sock), ssl_(ssl), read_timeout_sec_(read_timeout_sec),

+      read_timeout_usec_(read_timeout_usec),

+      write_timeout_sec_(write_timeout_sec),

+      write_timeout_usec_(write_timeout_usec) {

+  SSL_clear_mode(ssl, SSL_MODE_AUTO_RETRY);

+}

+

+inline SSLSocketStream::~SSLSocketStream() {}

+

+inline bool SSLSocketStream::is_readable() const {

+  return detail::select_read(sock_, read_timeout_sec_, read_timeout_usec_) > 0;

+}

+

+inline bool SSLSocketStream::is_writable() const {

+  return detail::select_write(sock_, write_timeout_sec_, write_timeout_usec_) >

+         0;

+}

+

+inline ssize_t SSLSocketStream::read(char *ptr, size_t size) {

+  if (SSL_pending(ssl_) > 0) {

+    return SSL_read(ssl_, ptr, static_cast<int>(size));

+  } else if (is_readable()) {

+    auto ret = SSL_read(ssl_, ptr, static_cast<int>(size));

+    if (ret < 0) {

+      auto err = SSL_get_error(ssl_, ret);

+      int n = 1000;

+#ifdef _WIN32

+      while (--n >= 0 &&

+             (err == SSL_ERROR_WANT_READ ||

+              err == SSL_ERROR_SYSCALL && WSAGetLastError() == WSAETIMEDOUT)) {

+#else

+      while (--n >= 0 && err == SSL_ERROR_WANT_READ) {

+#endif

+        if (SSL_pending(ssl_) > 0) {

+          return SSL_read(ssl_, ptr, static_cast<int>(size));

+        } else if (is_readable()) {

+          std::this_thread::sleep_for(std::chrono::milliseconds(1));

+          ret = SSL_read(ssl_, ptr, static_cast<int>(size));

+          if (ret >= 0) { return ret; }

+          err = SSL_get_error(ssl_, ret);

+        } else {

+          return -1;

+        }

+      }

+    }

+    return ret;

+  }

+  return -1;

+}

+

+inline ssize_t SSLSocketStream::write(const char *ptr, size_t size) {

+  if (is_writable()) { return SSL_write(ssl_, ptr, static_cast<int>(size)); }

+  return -1;

+}

+

+inline void SSLSocketStream::get_remote_ip_and_port(std::string &ip,

+                                                    int &port) const {

+  detail::get_remote_ip_and_port(sock_, ip, port);

+}

+

+inline socket_t SSLSocketStream::socket() const { return sock_; }

+

+static SSLInit sslinit_;

+

+} // namespace detail

+

+// SSL HTTP server implementation

+inline SSLServer::SSLServer(const char *cert_path, const char *private_key_path,

+                            const char *client_ca_cert_file_path,

+                            const char *client_ca_cert_dir_path) {

+  ctx_ = SSL_CTX_new(TLS_method());

+

+  if (ctx_) {

+    SSL_CTX_set_options(ctx_,

+                        SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 |

+                            SSL_OP_NO_COMPRESSION |

+                            SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);

+

+    // auto ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);

+    // SSL_CTX_set_tmp_ecdh(ctx_, ecdh);

+    // EC_KEY_free(ecdh);

+

+    if (SSL_CTX_use_certificate_chain_file(ctx_, cert_path) != 1 ||

+        SSL_CTX_use_PrivateKey_file(ctx_, private_key_path, SSL_FILETYPE_PEM) !=

+            1) {

+      SSL_CTX_free(ctx_);

+      ctx_ = nullptr;

+    } else if (client_ca_cert_file_path || client_ca_cert_dir_path) {

+      // if (client_ca_cert_file_path) {

+      //   auto list = SSL_load_client_CA_file(client_ca_cert_file_path);

+      //   SSL_CTX_set_client_CA_list(ctx_, list);

+      // }

+

+      SSL_CTX_load_verify_locations(ctx_, client_ca_cert_file_path,

+                                    client_ca_cert_dir_path);

+

+      SSL_CTX_set_verify(

+          ctx_,

+          SSL_VERIFY_PEER |

+              SSL_VERIFY_FAIL_IF_NO_PEER_CERT, // SSL_VERIFY_CLIENT_ONCE,

+          nullptr);

+    }

+  }

+}

+

+inline SSLServer::SSLServer(X509 *cert, EVP_PKEY *private_key,

+                            X509_STORE *client_ca_cert_store) {

+  ctx_ = SSL_CTX_new(SSLv23_server_method());

+

+  if (ctx_) {

+    SSL_CTX_set_options(ctx_,

+                        SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 |

+                            SSL_OP_NO_COMPRESSION |

+                            SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);

+

+    if (SSL_CTX_use_certificate(ctx_, cert) != 1 ||

+        SSL_CTX_use_PrivateKey(ctx_, private_key) != 1) {

+      SSL_CTX_free(ctx_);

+      ctx_ = nullptr;

+    } else if (client_ca_cert_store) {

+

+      SSL_CTX_set_cert_store(ctx_, client_ca_cert_store);

+

+      SSL_CTX_set_verify(

+          ctx_,

+          SSL_VERIFY_PEER |

+              SSL_VERIFY_FAIL_IF_NO_PEER_CERT, // SSL_VERIFY_CLIENT_ONCE,

+          nullptr);

+    }

+  }

+}

+

+inline SSLServer::~SSLServer() {

+  if (ctx_) { SSL_CTX_free(ctx_); }

+}

+

+inline bool SSLServer::is_valid() const { return ctx_; }

+

+inline bool SSLServer::process_and_close_socket(socket_t sock) {

+  auto ssl = detail::ssl_new(

+      sock, ctx_, ctx_mutex_,

+      [&](SSL *ssl) {

+        return detail::ssl_connect_or_accept_nonblocking(

+            sock, ssl, SSL_accept, read_timeout_sec_, read_timeout_usec_);

+      },

+      [](SSL * /*ssl*/) { return true; });

+

+  bool ret = false;

+  if (ssl) {

+    ret = detail::process_server_socket_ssl(

+        ssl, sock, keep_alive_max_count_, keep_alive_timeout_sec_,

+        read_timeout_sec_, read_timeout_usec_, write_timeout_sec_,

+        write_timeout_usec_,

+        [this, ssl](Stream &strm, bool close_connection,

+                    bool &connection_closed) {

+          return process_request(strm, close_connection, connection_closed,

+                                 [&](Request &req) { req.ssl = ssl; });

+        });

+

+    // Shutdown gracefully if the result seemed successful, non-gracefully if

+    // the connection appeared to be closed.

+    const bool shutdown_gracefully = ret;

+    detail::ssl_delete(ctx_mutex_, ssl, shutdown_gracefully);

+  }

+

+  detail::shutdown_socket(sock);

+  detail::close_socket(sock);

+  return ret;

+}

+

+// SSL HTTP client implementation

+inline SSLClient::SSLClient(const std::string &host)

+    : SSLClient(host, 443, std::string(), std::string()) {}

+

+inline SSLClient::SSLClient(const std::string &host, int port)

+    : SSLClient(host, port, std::string(), std::string()) {}

+

+inline SSLClient::SSLClient(const std::string &host, int port,

+                            const std::string &client_cert_path,

+                            const std::string &client_key_path)

+    : ClientImpl(host, port, client_cert_path, client_key_path) {

+  ctx_ = SSL_CTX_new(SSLv23_client_method());

+

+  detail::split(&host_[0], &host_[host_.size()], '.',

+                [&](const char *b, const char *e) {

+                  host_components_.emplace_back(std::string(b, e));

+                });

+  if (!client_cert_path.empty() && !client_key_path.empty()) {

+    if (SSL_CTX_use_certificate_file(ctx_, client_cert_path.c_str(),

+                                     SSL_FILETYPE_PEM) != 1 ||

+        SSL_CTX_use_PrivateKey_file(ctx_, client_key_path.c_str(),

+                                    SSL_FILETYPE_PEM) != 1) {

+      SSL_CTX_free(ctx_);

+      ctx_ = nullptr;

+    }

+  }

+}

+

+inline SSLClient::SSLClient(const std::string &host, int port,

+                            X509 *client_cert, EVP_PKEY *client_key)

+    : ClientImpl(host, port) {

+  ctx_ = SSL_CTX_new(SSLv23_client_method());

+

+  detail::split(&host_[0], &host_[host_.size()], '.',

+                [&](const char *b, const char *e) {

+                  host_components_.emplace_back(std::string(b, e));

+                });

+  if (client_cert != nullptr && client_key != nullptr) {

+    if (SSL_CTX_use_certificate(ctx_, client_cert) != 1 ||

+        SSL_CTX_use_PrivateKey(ctx_, client_key) != 1) {

+      SSL_CTX_free(ctx_);

+      ctx_ = nullptr;

+    }

+  }

+}

+

+inline SSLClient::~SSLClient() {

+  if (ctx_) { SSL_CTX_free(ctx_); }

+  // Make sure to shut down SSL since shutdown_ssl will resolve to the

+  // base function rather than the derived function once we get to the

+  // base class destructor, and won't free the SSL (causing a leak).

+  shutdown_ssl_impl(socket_, true);

+}

+

+inline bool SSLClient::is_valid() const { return ctx_; }

+

+inline void SSLClient::set_ca_cert_store(X509_STORE *ca_cert_store) {

+  if (ca_cert_store) {

+    if (ctx_) {

+      if (SSL_CTX_get_cert_store(ctx_) != ca_cert_store) {

+        // Free memory allocated for old cert and use new store `ca_cert_store`

+        SSL_CTX_set_cert_store(ctx_, ca_cert_store);

+      }

+    } else {

+      X509_STORE_free(ca_cert_store);

+    }

+  }

+}

+

+inline long SSLClient::get_openssl_verify_result() const {

+  return verify_result_;

+}

+

+inline SSL_CTX *SSLClient::ssl_context() const { return ctx_; }

+

+inline bool SSLClient::create_and_connect_socket(Socket &socket, Error &error) {

+  return is_valid() && ClientImpl::create_and_connect_socket(socket, error);

+}

+

+// Assumes that socket_mutex_ is locked and that there are no requests in flight

+inline bool SSLClient::connect_with_proxy(Socket &socket, Response &res,

+                                          bool &success, Error &error) {

+  success = true;

+  Response res2;

+  if (!detail::process_client_socket(

+          socket.sock, read_timeout_sec_, read_timeout_usec_,

+          write_timeout_sec_, write_timeout_usec_, [&](Stream &strm) {

+            Request req2;

+            req2.method = "CONNECT";

+            req2.path = host_and_port_;

+            return process_request(strm, req2, res2, false, error);

+          })) {

+    // Thread-safe to close everything because we are assuming there are no

+    // requests in flight

+    shutdown_ssl(socket, true);

+    shutdown_socket(socket);

+    close_socket(socket);

+    success = false;

+    return false;

+  }

+

+  if (res2.status == 407) {

+    if (!proxy_digest_auth_username_.empty() &&

+        !proxy_digest_auth_password_.empty()) {

+      std::map<std::string, std::string> auth;

+      if (detail::parse_www_authenticate(res2, auth, true)) {

+        Response res3;

+        if (!detail::process_client_socket(

+                socket.sock, read_timeout_sec_, read_timeout_usec_,

+                write_timeout_sec_, write_timeout_usec_, [&](Stream &strm) {

+                  Request req3;

+                  req3.method = "CONNECT";

+                  req3.path = host_and_port_;

+                  req3.headers.insert(detail::make_digest_authentication_header(

+                      req3, auth, 1, detail::random_string(10),

+                      proxy_digest_auth_username_, proxy_digest_auth_password_,

+                      true));

+                  return process_request(strm, req3, res3, false, error);

+                })) {

+          // Thread-safe to close everything because we are assuming there are

+          // no requests in flight

+          shutdown_ssl(socket, true);

+          shutdown_socket(socket);

+          close_socket(socket);

+          success = false;

+          return false;

+        }

+      }

+    } else {

+      res = res2;

+      return false;

+    }

+  }

+

+  return true;

+}

+

+inline bool SSLClient::load_certs() {

+  bool ret = true;

+

+  std::call_once(initialize_cert_, [&]() {

+    std::lock_guard<std::mutex> guard(ctx_mutex_);

+    if (!ca_cert_file_path_.empty()) {

+      if (!SSL_CTX_load_verify_locations(ctx_, ca_cert_file_path_.c_str(),

+                                         nullptr)) {

+        ret = false;

+      }

+    } else if (!ca_cert_dir_path_.empty()) {

+      if (!SSL_CTX_load_verify_locations(ctx_, nullptr,

+                                         ca_cert_dir_path_.c_str())) {

+        ret = false;

+      }

+    } else {

+#ifdef _WIN32

+      detail::load_system_certs_on_windows(SSL_CTX_get_cert_store(ctx_));

+#else

+      SSL_CTX_set_default_verify_paths(ctx_);

+#endif

+    }

+  });

+

+  return ret;

+}

+

+inline bool SSLClient::initialize_ssl(Socket &socket, Error &error) {

+  auto ssl = detail::ssl_new(

+      socket.sock, ctx_, ctx_mutex_,

+      [&](SSL *ssl) {

+        if (server_certificate_verification_) {

+          if (!load_certs()) {

+            error = Error::SSLLoadingCerts;

+            return false;

+          }

+          SSL_set_verify(ssl, SSL_VERIFY_NONE, nullptr);

+        }

+

+        if (!detail::ssl_connect_or_accept_nonblocking(

+                socket.sock, ssl, SSL_connect, connection_timeout_sec_,

+                connection_timeout_usec_)) {

+          error = Error::SSLConnection;

+          return false;

+        }

+

+        if (server_certificate_verification_) {

+          verify_result_ = SSL_get_verify_result(ssl);

+

+          if (verify_result_ != X509_V_OK) {

+            error = Error::SSLServerVerification;

+            return false;

+          }

+

+          auto server_cert = SSL_get_peer_certificate(ssl);

+

+          if (server_cert == nullptr) {

+            error = Error::SSLServerVerification;

+            return false;

+          }

+

+          if (!verify_host(server_cert)) {

+            X509_free(server_cert);

+            error = Error::SSLServerVerification;

+            return false;

+          }

+          X509_free(server_cert);

+        }

+

+        return true;

+      },

+      [&](SSL *ssl) {

+        SSL_set_tlsext_host_name(ssl, host_.c_str());

+        return true;

+      });

+

+  if (ssl) {

+    socket.ssl = ssl;

+    return true;

+  }

+

+  shutdown_socket(socket);

+  close_socket(socket);

+  return false;

+}

+

+inline void SSLClient::shutdown_ssl(Socket &socket, bool shutdown_gracefully) {

+  shutdown_ssl_impl(socket, shutdown_gracefully);

+}

+

+inline void SSLClient::shutdown_ssl_impl(Socket &socket,

+                                         bool shutdown_gracefully) {

+  if (socket.sock == INVALID_SOCKET) {

+    assert(socket.ssl == nullptr);

+    return;

+  }

+  if (socket.ssl) {

+    detail::ssl_delete(ctx_mutex_, socket.ssl, shutdown_gracefully);

+    socket.ssl = nullptr;

+  }

+  assert(socket.ssl == nullptr);

+}

+

+inline bool

+SSLClient::process_socket(const Socket &socket,

+                          std::function<bool(Stream &strm)> callback) {

+  assert(socket.ssl);

+  return detail::process_client_socket_ssl(

+      socket.ssl, socket.sock, read_timeout_sec_, read_timeout_usec_,

+      write_timeout_sec_, write_timeout_usec_, std::move(callback));

+}

+

+inline bool SSLClient::is_ssl() const { return true; }

+

+inline bool SSLClient::verify_host(X509 *server_cert) const {

+  /* Quote from RFC2818 section 3.1 "Server Identity"

+

+     If a subjectAltName extension of type dNSName is present, that MUST

+     be used as the identity. Otherwise, the (most specific) Common Name

+     field in the Subject field of the certificate MUST be used. Although

+     the use of the Common Name is existing practice, it is deprecated and

+     Certification Authorities are encouraged to use the dNSName instead.

+

+     Matching is performed using the matching rules specified by

+     [RFC2459].  If more than one identity of a given type is present in

+     the certificate (e.g., more than one dNSName name, a match in any one

+     of the set is considered acceptable.) Names may contain the wildcard

+     character * which is considered to match any single domain name

+     component or component fragment. E.g., *.a.com matches foo.a.com but

+     not bar.foo.a.com. f*.com matches foo.com but not bar.com.

+

+     In some cases, the URI is specified as an IP address rather than a

+     hostname. In this case, the iPAddress subjectAltName must be present

+     in the certificate and must exactly match the IP in the URI.

+

+  */

+  return verify_host_with_subject_alt_name(server_cert) ||

+         verify_host_with_common_name(server_cert);

+}

+

+inline bool

+SSLClient::verify_host_with_subject_alt_name(X509 *server_cert) const {

+  auto ret = false;

+

+  auto type = GEN_DNS;

+

+  struct in6_addr addr6;

+  struct in_addr addr;

+  size_t addr_len = 0;

+

+#ifndef __MINGW32__

+  if (inet_pton(AF_INET6, host_.c_str(), &addr6)) {

+    type = GEN_IPADD;

+    addr_len = sizeof(struct in6_addr);

+  } else if (inet_pton(AF_INET, host_.c_str(), &addr)) {

+    type = GEN_IPADD;

+    addr_len = sizeof(struct in_addr);

+  }

+#endif

+

+  auto alt_names = static_cast<const struct stack_st_GENERAL_NAME *>(

+      X509_get_ext_d2i(server_cert, NID_subject_alt_name, nullptr, nullptr));

+

+  if (alt_names) {

+    auto dsn_matched = false;

+    auto ip_mached = false;

+

+    auto count = sk_GENERAL_NAME_num(alt_names);

+

+    for (decltype(count) i = 0; i < count && !dsn_matched; i++) {

+      auto val = sk_GENERAL_NAME_value(alt_names, i);

+      if (val->type == type) {

+        auto name = (const char *)ASN1_STRING_get0_data(val->d.ia5);

+        auto name_len = (size_t)ASN1_STRING_length(val->d.ia5);

+

+        switch (type) {

+        case GEN_DNS: dsn_matched = check_host_name(name, name_len); break;

+

+        case GEN_IPADD:

+          if (!memcmp(&addr6, name, addr_len) ||

+              !memcmp(&addr, name, addr_len)) {

+            ip_mached = true;

+          }

+          break;

+        }

+      }

+    }

+

+    if (dsn_matched || ip_mached) { ret = true; }

+  }

+

+  GENERAL_NAMES_free((STACK_OF(GENERAL_NAME) *)alt_names);

+  return ret;

+}

+

+inline bool SSLClient::verify_host_with_common_name(X509 *server_cert) const {

+  const auto subject_name = X509_get_subject_name(server_cert);

+

+  if (subject_name != nullptr) {

+    char name[BUFSIZ];

+    auto name_len = X509_NAME_get_text_by_NID(subject_name, NID_commonName,

+                                              name, sizeof(name));

+

+    if (name_len != -1) {

+      return check_host_name(name, static_cast<size_t>(name_len));

+    }

+  }

+

+  return false;

+}

+

+inline bool SSLClient::check_host_name(const char *pattern,

+                                       size_t pattern_len) const {

+  if (host_.size() == pattern_len && host_ == pattern) { return true; }

+

+  // Wildcard match

+  // https://bugs.launchpad.net/ubuntu/+source/firefox-3.0/+bug/376484

+  std::vector<std::string> pattern_components;

+  detail::split(&pattern[0], &pattern[pattern_len], '.',

+                [&](const char *b, const char *e) {

+                  pattern_components.emplace_back(std::string(b, e));

+                });

+

+  if (host_components_.size() != pattern_components.size()) { return false; }

+

+  auto itr = pattern_components.begin();

+  for (const auto &h : host_components_) {

+    auto &p = *itr;

+    if (p != h && p != "*") {

+      auto partial_match = (p.size() > 0 && p[p.size() - 1] == '*' &&

+                            !p.compare(0, p.size() - 1, h));

+      if (!partial_match) { return false; }

+    }

+    ++itr;

+  }

+

+  return true;

+}

+#endif

+

+// Universal client implementation

+inline Client::Client(const std::string &scheme_host_port)

+    : Client(scheme_host_port, std::string(), std::string()) {}

+

+inline Client::Client(const std::string &scheme_host_port,

+                      const std::string &client_cert_path,

+                      const std::string &client_key_path) {

+  const static std::regex re(

+      R"((?:([a-z]+):\/\/)?(?:\[([\d:]+)\]|([^:/?#]+))(?::(\d+))?)");

+

+  std::smatch m;

+  if (std::regex_match(scheme_host_port, m, re)) {

+    auto scheme = m[1].str();

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+    if (!scheme.empty() && (scheme != "http" && scheme != "https")) {

+#else

+    if (!scheme.empty() && scheme != "http") {

+#endif

+      std::string msg = "'" + scheme + "' scheme is not supported.";

+      throw std::invalid_argument(msg);

+      return;

+    }

+

+    auto is_ssl = scheme == "https";

+

+    auto host = m[2].str();

+    if (host.empty()) { host = m[3].str(); }

+

+    auto port_str = m[4].str();

+    auto port = !port_str.empty() ? std::stoi(port_str) : (is_ssl ? 443 : 80);

+

+    if (is_ssl) {

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+      cli_ = detail::make_unique<SSLClient>(host.c_str(), port,

+                                            client_cert_path, client_key_path);

+      is_ssl_ = is_ssl;

+#endif

+    } else {

+      cli_ = detail::make_unique<ClientImpl>(host.c_str(), port,

+                                             client_cert_path, client_key_path);

+    }

+  } else {

+    cli_ = detail::make_unique<ClientImpl>(scheme_host_port, 80,

+                                           client_cert_path, client_key_path);

+  }

+}

+

+inline Client::Client(const std::string &host, int port)

+    : cli_(detail::make_unique<ClientImpl>(host, port)) {}

+

+inline Client::Client(const std::string &host, int port,

+                      const std::string &client_cert_path,

+                      const std::string &client_key_path)

+    : cli_(detail::make_unique<ClientImpl>(host, port, client_cert_path,

+                                           client_key_path)) {}

+

+inline Client::~Client() {}

+

+inline bool Client::is_valid() const {

+  return cli_ != nullptr && cli_->is_valid();

+}

+

+inline Result Client::Get(const char *path) { return cli_->Get(path); }

+inline Result Client::Get(const char *path, const Headers &headers) {

+  return cli_->Get(path, headers);

+}

+inline Result Client::Get(const char *path, Progress progress) {

+  return cli_->Get(path, std::move(progress));

+}

+inline Result Client::Get(const char *path, const Headers &headers,

+                          Progress progress) {

+  return cli_->Get(path, headers, std::move(progress));

+}

+inline Result Client::Get(const char *path, ContentReceiver content_receiver) {

+  return cli_->Get(path, std::move(content_receiver));

+}

+inline Result Client::Get(const char *path, const Headers &headers,

+                          ContentReceiver content_receiver) {

+  return cli_->Get(path, headers, std::move(content_receiver));

+}

+inline Result Client::Get(const char *path, ContentReceiver content_receiver,

+                          Progress progress) {

+  return cli_->Get(path, std::move(content_receiver), std::move(progress));

+}

+inline Result Client::Get(const char *path, const Headers &headers,

+                          ContentReceiver content_receiver, Progress progress) {

+  return cli_->Get(path, headers, std::move(content_receiver),

+                   std::move(progress));

+}

+inline Result Client::Get(const char *path, ResponseHandler response_handler,

+                          ContentReceiver content_receiver) {

+  return cli_->Get(path, std::move(response_handler),

+                   std::move(content_receiver));

+}

+inline Result Client::Get(const char *path, const Headers &headers,

+                          ResponseHandler response_handler,

+                          ContentReceiver content_receiver) {

+  return cli_->Get(path, headers, std::move(response_handler),

+                   std::move(content_receiver));

+}

+inline Result Client::Get(const char *path, ResponseHandler response_handler,

+                          ContentReceiver content_receiver, Progress progress) {

+  return cli_->Get(path, std::move(response_handler),

+                   std::move(content_receiver), std::move(progress));

+}

+inline Result Client::Get(const char *path, const Headers &headers,

+                          ResponseHandler response_handler,

+                          ContentReceiver content_receiver, Progress progress) {

+  return cli_->Get(path, headers, std::move(response_handler),

+                   std::move(content_receiver), std::move(progress));

+}

+inline Result Client::Get(const char *path, const Params &params,

+                          const Headers &headers, Progress progress) {

+  return cli_->Get(path, params, headers, progress);

+}

+inline Result Client::Get(const char *path, const Params &params,

+                          const Headers &headers,

+                          ContentReceiver content_receiver, Progress progress) {

+  return cli_->Get(path, params, headers, content_receiver, progress);

+}

+inline Result Client::Get(const char *path, const Params &params,

+                          const Headers &headers,

+                          ResponseHandler response_handler,

+                          ContentReceiver content_receiver, Progress progress) {

+  return cli_->Get(path, params, headers, response_handler, content_receiver,

+                   progress);

+}

+

+inline Result Client::Head(const char *path) { return cli_->Head(path); }

+inline Result Client::Head(const char *path, const Headers &headers) {

+  return cli_->Head(path, headers);

+}

+

+inline Result Client::Post(const char *path) { return cli_->Post(path); }

+inline Result Client::Post(const char *path, const char *body,

+                           size_t content_length, const char *content_type) {

+  return cli_->Post(path, body, content_length, content_type);

+}

+inline Result Client::Post(const char *path, const Headers &headers,

+                           const char *body, size_t content_length,

+                           const char *content_type) {

+  return cli_->Post(path, headers, body, content_length, content_type);

+}

+inline Result Client::Post(const char *path, const std::string &body,

+                           const char *content_type) {

+  return cli_->Post(path, body, content_type);

+}

+inline Result Client::Post(const char *path, const Headers &headers,

+                           const std::string &body, const char *content_type) {

+  return cli_->Post(path, headers, body, content_type);

+}

+inline Result Client::Post(const char *path, size_t content_length,

+                           ContentProvider content_provider,

+                           const char *content_type) {

+  return cli_->Post(path, content_length, std::move(content_provider),

+                    content_type);

+}

+inline Result Client::Post(const char *path,

+                           ContentProviderWithoutLength content_provider,

+                           const char *content_type) {

+  return cli_->Post(path, std::move(content_provider), content_type);

+}

+inline Result Client::Post(const char *path, const Headers &headers,

+                           size_t content_length,

+                           ContentProvider content_provider,

+                           const char *content_type) {

+  return cli_->Post(path, headers, content_length, std::move(content_provider),

+                    content_type);

+}

+inline Result Client::Post(const char *path, const Headers &headers,

+                           ContentProviderWithoutLength content_provider,

+                           const char *content_type) {

+  return cli_->Post(path, headers, std::move(content_provider), content_type);

+}

+inline Result Client::Post(const char *path, const Params &params) {

+  return cli_->Post(path, params);

+}

+inline Result Client::Post(const char *path, const Headers &headers,

+                           const Params &params) {

+  return cli_->Post(path, headers, params);

+}

+inline Result Client::Post(const char *path,

+                           const MultipartFormDataItems &items) {

+  return cli_->Post(path, items);

+}

+inline Result Client::Post(const char *path, const Headers &headers,

+                           const MultipartFormDataItems &items) {

+  return cli_->Post(path, headers, items);

+}

+inline Result Client::Post(const char *path, const Headers &headers,

+                           const MultipartFormDataItems &items,

+                           const std::string &boundary) {

+  return cli_->Post(path, headers, items, boundary);

+}

+inline Result Client::Put(const char *path) { return cli_->Put(path); }

+inline Result Client::Put(const char *path, const char *body,

+                          size_t content_length, const char *content_type) {

+  return cli_->Put(path, body, content_length, content_type);

+}

+inline Result Client::Put(const char *path, const Headers &headers,

+                          const char *body, size_t content_length,

+                          const char *content_type) {

+  return cli_->Put(path, headers, body, content_length, content_type);

+}

+inline Result Client::Put(const char *path, const std::string &body,

+                          const char *content_type) {

+  return cli_->Put(path, body, content_type);

+}

+inline Result Client::Put(const char *path, const Headers &headers,

+                          const std::string &body, const char *content_type) {

+  return cli_->Put(path, headers, body, content_type);

+}

+inline Result Client::Put(const char *path, size_t content_length,

+                          ContentProvider content_provider,

+                          const char *content_type) {

+  return cli_->Put(path, content_length, std::move(content_provider),

+                   content_type);

+}

+inline Result Client::Put(const char *path,

+                          ContentProviderWithoutLength content_provider,

+                          const char *content_type) {

+  return cli_->Put(path, std::move(content_provider), content_type);

+}

+inline Result Client::Put(const char *path, const Headers &headers,

+                          size_t content_length,

+                          ContentProvider content_provider,

+                          const char *content_type) {

+  return cli_->Put(path, headers, content_length, std::move(content_provider),

+                   content_type);

+}

+inline Result Client::Put(const char *path, const Headers &headers,

+                          ContentProviderWithoutLength content_provider,

+                          const char *content_type) {

+  return cli_->Put(path, headers, std::move(content_provider), content_type);

+}

+inline Result Client::Put(const char *path, const Params &params) {

+  return cli_->Put(path, params);

+}

+inline Result Client::Put(const char *path, const Headers &headers,

+                          const Params &params) {

+  return cli_->Put(path, headers, params);

+}

+inline Result Client::Patch(const char *path) { return cli_->Patch(path); }

+inline Result Client::Patch(const char *path, const char *body,

+                            size_t content_length, const char *content_type) {

+  return cli_->Patch(path, body, content_length, content_type);

+}

+inline Result Client::Patch(const char *path, const Headers &headers,

+                            const char *body, size_t content_length,

+                            const char *content_type) {

+  return cli_->Patch(path, headers, body, content_length, content_type);

+}

+inline Result Client::Patch(const char *path, const std::string &body,

+                            const char *content_type) {

+  return cli_->Patch(path, body, content_type);

+}

+inline Result Client::Patch(const char *path, const Headers &headers,

+                            const std::string &body, const char *content_type) {

+  return cli_->Patch(path, headers, body, content_type);

+}

+inline Result Client::Patch(const char *path, size_t content_length,

+                            ContentProvider content_provider,

+                            const char *content_type) {

+  return cli_->Patch(path, content_length, std::move(content_provider),

+                     content_type);

+}

+inline Result Client::Patch(const char *path,

+                            ContentProviderWithoutLength content_provider,

+                            const char *content_type) {

+  return cli_->Patch(path, std::move(content_provider), content_type);

+}

+inline Result Client::Patch(const char *path, const Headers &headers,

+                            size_t content_length,

+                            ContentProvider content_provider,

+                            const char *content_type) {

+  return cli_->Patch(path, headers, content_length, std::move(content_provider),

+                     content_type);

+}

+inline Result Client::Patch(const char *path, const Headers &headers,

+                            ContentProviderWithoutLength content_provider,

+                            const char *content_type) {

+  return cli_->Patch(path, headers, std::move(content_provider), content_type);

+}

+inline Result Client::Delete(const char *path) { return cli_->Delete(path); }

+inline Result Client::Delete(const char *path, const Headers &headers) {

+  return cli_->Delete(path, headers);

+}

+inline Result Client::Delete(const char *path, const char *body,

+                             size_t content_length, const char *content_type) {

+  return cli_->Delete(path, body, content_length, content_type);

+}

+inline Result Client::Delete(const char *path, const Headers &headers,

+                             const char *body, size_t content_length,

+                             const char *content_type) {

+  return cli_->Delete(path, headers, body, content_length, content_type);

+}

+inline Result Client::Delete(const char *path, const std::string &body,

+                             const char *content_type) {

+  return cli_->Delete(path, body, content_type);

+}

+inline Result Client::Delete(const char *path, const Headers &headers,

+                             const std::string &body,

+                             const char *content_type) {

+  return cli_->Delete(path, headers, body, content_type);

+}

+inline Result Client::Options(const char *path) { return cli_->Options(path); }

+inline Result Client::Options(const char *path, const Headers &headers) {

+  return cli_->Options(path, headers);

+}

+

+inline bool Client::send(Request &req, Response &res, Error &error) {

+  return cli_->send(req, res, error);

+}

+

+inline Result Client::send(const Request &req) { return cli_->send(req); }

+

+inline size_t Client::is_socket_open() const { return cli_->is_socket_open(); }

+

+inline void Client::stop() { cli_->stop(); }

+

+inline void Client::set_default_headers(Headers headers) {

+  cli_->set_default_headers(std::move(headers));

+}

+

+inline void Client::set_address_family(int family) {

+  cli_->set_address_family(family);

+}

+

+inline void Client::set_tcp_nodelay(bool on) { cli_->set_tcp_nodelay(on); }

+

+inline void Client::set_socket_options(SocketOptions socket_options) {

+  cli_->set_socket_options(std::move(socket_options));

+}

+

+inline void Client::set_connection_timeout(time_t sec, time_t usec) {

+  cli_->set_connection_timeout(sec, usec);

+}

+

+inline void Client::set_read_timeout(time_t sec, time_t usec) {

+  cli_->set_read_timeout(sec, usec);

+}

+

+inline void Client::set_write_timeout(time_t sec, time_t usec) {

+  cli_->set_write_timeout(sec, usec);

+}

+

+inline void Client::set_basic_auth(const char *username, const char *password) {

+  cli_->set_basic_auth(username, password);

+}

+inline void Client::set_bearer_token_auth(const char *token) {

+  cli_->set_bearer_token_auth(token);

+}

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+inline void Client::set_digest_auth(const char *username,

+                                    const char *password) {

+  cli_->set_digest_auth(username, password);

+}

+#endif

+

+inline void Client::set_keep_alive(bool on) { cli_->set_keep_alive(on); }

+inline void Client::set_follow_location(bool on) {

+  cli_->set_follow_location(on);

+}

+

+inline void Client::set_url_encode(bool on) { cli_->set_url_encode(on); }

+

+inline void Client::set_compress(bool on) { cli_->set_compress(on); }

+

+inline void Client::set_decompress(bool on) { cli_->set_decompress(on); }

+

+inline void Client::set_interface(const char *intf) {

+  cli_->set_interface(intf);

+}

+

+inline void Client::set_proxy(const char *host, int port) {

+  cli_->set_proxy(host, port);

+}

+inline void Client::set_proxy_basic_auth(const char *username,

+                                         const char *password) {

+  cli_->set_proxy_basic_auth(username, password);

+}

+inline void Client::set_proxy_bearer_token_auth(const char *token) {

+  cli_->set_proxy_bearer_token_auth(token);

+}

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+inline void Client::set_proxy_digest_auth(const char *username,

+                                          const char *password) {

+  cli_->set_proxy_digest_auth(username, password);

+}

+#endif

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+inline void Client::enable_server_certificate_verification(bool enabled) {

+  cli_->enable_server_certificate_verification(enabled);

+}

+#endif

+

+inline void Client::set_logger(Logger logger) { cli_->set_logger(logger); }

+

+#ifdef CPPHTTPLIB_OPENSSL_SUPPORT

+inline void Client::set_ca_cert_path(const char *ca_cert_file_path,

+                                     const char *ca_cert_dir_path) {

+  cli_->set_ca_cert_path(ca_cert_file_path, ca_cert_dir_path);

+}

+

+inline void Client::set_ca_cert_store(X509_STORE *ca_cert_store) {

+  if (is_ssl_) {

+    static_cast<SSLClient &>(*cli_).set_ca_cert_store(ca_cert_store);

+  } else {

+    cli_->set_ca_cert_store(ca_cert_store);

+  }

+}

+

+inline long Client::get_openssl_verify_result() const {

+  if (is_ssl_) {

+    return static_cast<SSLClient &>(*cli_).get_openssl_verify_result();

+  }

+  return -1; // NOTE: -1 doesn't match any of X509_V_ERR_???

+}

+

+inline SSL_CTX *Client::ssl_context() const {

+  if (is_ssl_) { return static_cast<SSLClient &>(*cli_).ssl_context(); }

+  return nullptr;

+}

+#endif

+

+// ----------------------------------------------------------------------------

+

+} // namespace httplib

+

+#endif // CPPHTTPLIB_HTTPLIB_H