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#include "loader.h"
#include <string>
#include <system_error>
#include <sstream>
#include <fstream>
#include <filesystem>
#include <iostream>
namespace fs = std::filesystem;
void LibraryLoadError(DWORD dwMessageId, const wchar_t* libName, const wchar_t* location)
{
char text[4096];
std::string message = std::system_category().message(dwMessageId);
sprintf_s(text, "Failed to load the %ls at \"%ls\" (%lu):\n\n%hs", libName, location, dwMessageId, message.c_str());
if (dwMessageId == 126 && std::filesystem::exists(location))
{
sprintf_s(
text,
"%s\n\nThe file at the specified location DOES exist, so this error indicates that one of its *dependencies* failed to be "
"found.",
text);
}
MessageBoxA(GetForegroundWindow(), text, "Northstar Wsock32 Proxy Error", 0);
}
bool ShouldLoadNorthstar()
{
bool loadNorthstar = strstr(GetCommandLineA(), "-northstar");
if (loadNorthstar)
return loadNorthstar;
auto runNorthstarFile = std::ifstream("run_northstar.txt");
if (runNorthstarFile)
{
std::stringstream runNorthstarFileBuffer;
runNorthstarFileBuffer << runNorthstarFile.rdbuf();
runNorthstarFile.close();
if (!runNorthstarFileBuffer.str().starts_with("0"))
loadNorthstar = true;
}
return loadNorthstar;
}
bool LoadNorthstar()
{
FARPROC Hook_Init = nullptr;
{
std::string strProfile = "R2Northstar";
char* clachar = strstr(GetCommandLineA(), "-profile=");
if (clachar)
{
std::string cla = std::string(clachar);
if (strncmp(cla.substr(9, 1).c_str(), "\"", 1))
{
size_t space = cla.find(" ");
std::string dirname = cla.substr(9, space - 9);
std::cout << "[*] Found profile in command line arguments: " << dirname << std::endl;
strProfile = dirname.c_str();
}
else
{
std::string quote = "\"";
size_t quote1 = cla.find(quote);
size_t quote2 = (cla.substr(quote1 + 1)).find(quote);
std::string dirname = cla.substr(quote1 + 1, quote2);
std::cout << "[*] Found profile in command line arguments: " << dirname << std::endl;
strProfile = dirname;
}
}
else
{
std::cout << "[*] Profile was not found in command line arguments. Using default: R2Northstar" << std::endl;
strProfile = "R2Northstar";
}
wchar_t buffer[8192];
// Check if "Northstar.dll" exists in profile directory, if it doesnt fall back to root
swprintf_s(buffer, L"%s\\%s\\Northstar.dll", exePath, std::wstring(strProfile.begin(), strProfile.end()).c_str());
if (!fs::exists(fs::path(buffer)))
swprintf_s(buffer, L"%s\\Northstar.dll", exePath);
std::wcout << L"[*] Using: " << buffer << std::endl;
HMODULE hHookModule = LoadLibraryExW(buffer, 0, 8u);
if (hHookModule)
Hook_Init = GetProcAddress(hHookModule, "InitialiseNorthstar");
if (!hHookModule || Hook_Init == nullptr)
{
LibraryLoadError(GetLastError(), L"Northstar.dll", buffer);
return false;
}
}
((bool (*)())Hook_Init)();
return true;
}
typedef int (*LauncherMainType)(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow);
LauncherMainType LauncherMainOriginal;
int LauncherMainHook(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
if (ShouldLoadNorthstar())
LoadNorthstar();
return LauncherMainOriginal(hInstance, hPrevInstance, lpCmdLine, nCmdShow);
}
bool ProvisionNorthstar()
{
if (!ShouldLoadNorthstar())
return true;
if (MH_Initialize() != MH_OK)
{
MessageBoxA(
GetForegroundWindow(), "MH_Initialize failed\nThe game cannot continue and has to exit.", "Northstar Wsock32 Proxy Error", 0);
return false;
}
auto launcherHandle = GetModuleHandleA("launcher.dll");
if (!launcherHandle)
{
MessageBoxA(
GetForegroundWindow(),
"Launcher isn't loaded yet.\nThe game cannot continue and has to exit.",
"Northstar Wsock32 Proxy Error",
0);
return false;
}
LPVOID pTarget = (LPVOID)GetProcAddress(launcherHandle, "LauncherMain");
if (MH_CreateHook(pTarget, (LPVOID)&LauncherMainHook, reinterpret_cast<LPVOID*>(&LauncherMainOriginal)) != MH_OK ||
MH_EnableHook(pTarget) != MH_OK)
MessageBoxA(GetForegroundWindow(), "Hook creation failed for function LauncherMain.", "Northstar Wsock32 Proxy Error", 0);
return true;
}
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