h1-mod/src/client/component/system_check.cpp
Federico Cecchetto b49aea8ecc Formatting
2022-02-23 21:23:00 +01:00

101 lines
2.2 KiB
C++

#include <std_include.hpp>
#include "loader/component_loader.hpp"
#include "system_check.hpp"
#include "game/game.hpp"
#include <utils/io.hpp>
#include <utils/cryptography.hpp>
namespace system_check
{
namespace
{
std::string read_zone(const std::string& name)
{
std::string data{};
if (utils::io::read_file(name, &data))
{
return data;
}
if (utils::io::read_file("zone/" + name, &data))
{
return data;
}
return {};
}
std::string hash_zone(const std::string& name)
{
const auto data = read_zone(name);
return utils::cryptography::sha256::compute(data, true);
}
bool verify_hashes(const std::unordered_map<std::string, std::string>& zone_hashes)
{
for (const auto& zone_hash : zone_hashes)
{
const auto hash = hash_zone(zone_hash.first);
if (hash != zone_hash.second)
{
return false;
}
}
return true;
}
bool is_system_valid()
{
static std::unordered_map<std::string, std::string> mp_zone_hashes =
{
{"patch_common_mp.ff", "3F44B0CFB0B8E0FBD9687C2942204AB7F11E66E6E15C73B8B4A5EB5920115A31"},
};
static std::unordered_map<std::string, std::string> sp_zone_hashes =
{
// Steam doesn't necessarily deliver this file :(
{"patch_common.ff", "BB0617DD94AF2F511571E7184BBEDE76E64D97E5D0DAFDB457F00717F035EBF0"},
};
return verify_hashes(mp_zone_hashes) && (game::environment::is_dedi() || verify_hashes(sp_zone_hashes));
}
void verify_binary_version()
{
const auto value = *reinterpret_cast<DWORD*>(0x140001337);
if (value != 0xFFB8006D && value != 0xFFB80080)
{
throw std::runtime_error("Unsupported Call of Duty: Modern Warfare Remastered version(1.4)");
}
}
}
bool is_valid()
{
static auto valid = is_system_valid();
return valid;
}
class component final : public component_interface
{
public:
void post_load() override
{
verify_binary_version();
if (!is_valid())
{
MessageBoxA(nullptr, "Your game files are outdated or unsupported.\n"
"Please get the latest officially supported Call of Duty: Modern Warfare Remastered 1.4 files, or you will get random crashes and issues.",
"Invalid game files!", MB_ICONINFORMATION);
}
}
};
}
REGISTER_COMPONENT(system_check::component)