init

src/client/component/system_check.cpp

@@ -0,0 +1,99 @@
+#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", "F1F08BFD03D0496199FAFD49CAA3E5786B70084A4C3C8841ACC4A7B7616D226C"},
+			};
+
+			static std::unordered_map<std::string, std::string> sp_zone_hashes =
+			{
+				{"patch_common.ff", "883DB33A1E386420EC6EF19F25C0D8081D01C1945BA2BCAD9FBD5460A201D6AA"},
+				{"patch_common_alien_mp.ff", "78B00BFF961F69F9A45446D40638A5A7F5C3462F1AF05A833066772C62FB5DB2"},
+			};
+
+			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 != 0xDB0A33E7 && value != 0xA6D147E7)
+			{
+				throw std::runtime_error("Unsupported Call of Duty: Ghosts version");
+			}
+		}
+	}
+
+	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())
+			{
+				game::show_error("Your game files are outdated or unsupported.\n"
+				                 "Please get the latest officially supported Call of Duty: Ghosts files, or you will get random crashes and issues.",
+				                 "Invalid game files!");
+			}
+		}
+	};
+}
+
+REGISTER_COMPONENT(system_check::component)