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Diffstat (limited to 'include')
| -rw-r--r-- | include/httplib.h | 7832 |
1 files changed, 0 insertions, 7832 deletions
diff --git a/include/httplib.h b/include/httplib.h deleted file mode 100644 index 2b52f0fc..00000000 --- a/include/httplib.h +++ /dev/null @@ -1,7832 +0,0 @@ -// -// 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 ¶ms, const Headers &headers, - Progress progress = nullptr); - Result Get(const char *path, const Params ¶ms, const Headers &headers, - ContentReceiver content_receiver, Progress progress = nullptr); - Result Get(const char *path, const Params ¶ms, 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 ¶ms); - Result Post(const char *path, const Headers &headers, const Params ¶ms); - 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 ¶ms); - Result Put(const char *path, const Headers &headers, const Params ¶ms); - - 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 ¶ms, const Headers &headers, - Progress progress = nullptr); - Result Get(const char *path, const Params ¶ms, const Headers &headers, - ContentReceiver content_receiver, Progress progress = nullptr); - Result Get(const char *path, const Params ¶ms, 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 ¶ms); - Result Post(const char *path, const Headers &headers, const Params ¶ms); - 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 ¶ms); - Result Put(const char *path, const Headers &headers, const Params ¶ms); - 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 ¶ms); - -void parse_query_text(const std::string &s, Params ¶ms); - -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 ¶ms) { - 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 ¶ms) { - 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 ¶ms) { - 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 ¶ms, - 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 ¶ms, - 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 ¶ms, - 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 ¶ms) { - 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 ¶ms) { - 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 ¶ms) { - return Put(path, Headers(), params); -} - -inline Result ClientImpl::Put(const char *path, const Headers &headers, - const Params ¶ms) { - 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 ¶ms, - const Headers &headers, Progress progress) { - return cli_->Get(path, params, headers, progress); -} -inline Result Client::Get(const char *path, const Params ¶ms, - 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 ¶ms, - 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 ¶ms) { - return cli_->Post(path, params); -} -inline Result Client::Post(const char *path, const Headers &headers, - const Params ¶ms) { - 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 ¶ms) { - return cli_->Put(path, params); -} -inline Result Client::Put(const char *path, const Headers &headers, - const Params ¶ms) { - 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 |