177 lines
4.8 KiB
C++
177 lines
4.8 KiB
C++
#include "pch.h"
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#include <stdio.h>
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#include <string>
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#include <system_error>
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#include <shlwapi.h>
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#include <sstream>
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#include <fstream>
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#include <filesystem>
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HMODULE hLauncherModule;
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HMODULE hHookModule;
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HMODULE hTier0Module;
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using CreateInterfaceFn = void* (*)(const char* pName, int* pReturnCode);
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// does not seem to ever be used
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extern "C" __declspec(dllexport) void* __fastcall CreateInterface(const char* pName, int* pReturnCode)
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{
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// AppSystemCreateInterfaceFn(pName, pReturnCode);
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printf("external CreateInterface: name: %s\n", pName);
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static CreateInterfaceFn launcher_CreateInterface = (CreateInterfaceFn)GetProcAddress(hLauncherModule, "CreateInterface");
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auto res = launcher_CreateInterface(pName, pReturnCode);
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printf("external CreateInterface: return code: %p\n", res);
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return res;
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}
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bool GetExePathWide(wchar_t* dest, DWORD destSize)
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{
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if (!dest)
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return NULL;
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if (destSize < MAX_PATH)
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return NULL;
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DWORD length = GetModuleFileNameW(NULL, dest, destSize);
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return length && PathRemoveFileSpecW(dest);
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}
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FARPROC GetLauncherMain()
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{
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static FARPROC Launcher_LauncherMain;
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if (!Launcher_LauncherMain)
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Launcher_LauncherMain = GetProcAddress(hLauncherModule, "LauncherMain");
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return Launcher_LauncherMain;
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}
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void LibraryLoadError(DWORD dwMessageId, const wchar_t* libName, const wchar_t* location)
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{
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char text[4096];
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std::string message = std::system_category().message(dwMessageId);
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sprintf_s(text, "Failed to load the %ls at \"%ls\" (%lu):\n\n%hs", libName, location, dwMessageId, message.c_str());
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if (dwMessageId == 126 && std::filesystem::exists(location))
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{
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sprintf_s(
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text,
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"%s\n\nThe file at the specified location DOES exist, so this error indicates that one of its *dependencies* failed to be "
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"found.",
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text);
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}
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MessageBoxA(GetForegroundWindow(), text, "Northstar Launcher Proxy Error", 0);
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}
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BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved)
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{
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switch (ul_reason_for_call)
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{
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case DLL_PROCESS_ATTACH:
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case DLL_THREAD_ATTACH:
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case DLL_THREAD_DETACH:
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case DLL_PROCESS_DETACH:
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break;
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}
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return TRUE;
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}
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wchar_t exePath[4096];
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wchar_t dllPath[4096];
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bool ShouldLoadNorthstar()
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{
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bool loadNorthstar = !strstr(GetCommandLineA(), "-vanilla");
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if (!loadNorthstar)
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return loadNorthstar;
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auto runNorthstarFile = std::ifstream("run_northstar.txt");
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if (runNorthstarFile)
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{
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std::stringstream runNorthstarFileBuffer;
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runNorthstarFileBuffer << runNorthstarFile.rdbuf();
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runNorthstarFile.close();
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if (runNorthstarFileBuffer.str().starts_with("0"))
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loadNorthstar = false;
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}
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return loadNorthstar;
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}
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bool LoadNorthstar()
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{
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FARPROC Hook_Init = nullptr;
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{
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swprintf_s(dllPath, L"%s\\Northstar.dll", exePath);
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hHookModule = LoadLibraryExW(dllPath, 0, LOAD_WITH_ALTERED_SEARCH_PATH);
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if (hHookModule)
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Hook_Init = GetProcAddress(hHookModule, "InitialiseNorthstar");
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if (!hHookModule || Hook_Init == nullptr)
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{
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LibraryLoadError(GetLastError(), L"Northstar.dll", dllPath);
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return false;
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}
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}
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((bool (*)())Hook_Init)();
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return true;
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}
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extern "C" __declspec(dllexport) int LauncherMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
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{
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{
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if (!GetExePathWide(exePath, 4096))
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{
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MessageBoxA(
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GetForegroundWindow(),
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"Failed getting game directory.\nThe game cannot continue and has to exit.",
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"Northstar Launcher Proxy Error",
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0);
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return 1;
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}
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SetCurrentDirectoryW(exePath);
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bool loadNorthstar = ShouldLoadNorthstar();
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if (loadNorthstar)
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{
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swprintf_s(dllPath, L"%s\\bin\\x64_retail\\tier0.dll", exePath);
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hTier0Module = LoadLibraryExW(dllPath, 0, LOAD_WITH_ALTERED_SEARCH_PATH);
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if (!hTier0Module)
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{
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LibraryLoadError(GetLastError(), L"tier0.dll", dllPath);
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return 1;
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}
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if (!LoadNorthstar())
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return 1;
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}
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// else printf("\n\n WILL !!!NOT!!! LOAD NORTHSTAR\n\n");
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swprintf_s(dllPath, L"%s\\bin\\x64_retail\\launcher.org.dll", exePath);
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hLauncherModule = LoadLibraryExW(dllPath, 0, LOAD_WITH_ALTERED_SEARCH_PATH);
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if (!hLauncherModule)
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{
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LibraryLoadError(GetLastError(), L"launcher.org.dll", dllPath);
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return 1;
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}
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}
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auto LauncherMain = GetLauncherMain();
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if (!LauncherMain)
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MessageBoxA(
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GetForegroundWindow(),
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"Failed loading launcher.org.dll.\nThe game cannot continue and has to exit.",
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"Northstar Launcher Proxy Error",
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0);
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// auto result = ((__int64(__fastcall*)())LauncherMain)();
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// auto result = ((signed __int64(__fastcall*)(__int64))LauncherMain)(0i64);
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return ((int(__fastcall*)(HINSTANCE, HINSTANCE, LPSTR, int))LauncherMain)(hInstance, hPrevInstance, lpCmdLine, nCmdShow);
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}
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// doubt that will help us here (in launcher.dll) though
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extern "C"
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{
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__declspec(dllexport) DWORD AmdPowerXpressRequestHighPerformance = 0x00000001;
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__declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
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}
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