custom_items_games/functions.h
ficool2 cb1e6461c6 Forcefully disable item schema update on beta branches
Remove signature for filesystem, fetch it from factory instead
2023-10-23 17:48:12 +01:00

132 lines
3.6 KiB
C

#define CUSTOM_ITEMS_GAME "scripts/items/items_game_custom.txt"
#define CUSTOM_ITEMS_GAME_SIG CUSTOM_ITEMS_GAME ".sig"
extern IBaseFileSystem* filesystem;
typedef intptr_t (*econItemSystem)();
ADDR(
econItemSystem,
"CTFItemSystem",
MOD_SERVER,
\xA1\x2A\x2A\x2A\x2A\x85\xC0\x75\x2A\x56,
x????xxx?x
);
bool customItemsGameFound = false;
bool helper_check_custom_itemsgame()
{
bool foundCustom = true;
if (!filesystem->FileExists(CUSTOM_ITEMS_GAME))
{
Log(Color(255, 0, 127, 255), "Server: %s not found, loading default items_game.txt ...\n", CUSTOM_ITEMS_GAME);
foundCustom = false;
}
if (!filesystem->FileExists(CUSTOM_ITEMS_GAME_SIG))
{
Log(Color(255, 0, 127, 255), "Server: %s not found, loading default items_game.txt ...\n", CUSTOM_ITEMS_GAME_SIG);
foundCustom = false;
}
customItemsGameFound = foundCustom;
return foundCustom;
}
typedef bool (*crypto_verifySignature)(uint8_t*, uint8_t, uint8_t*, uint8_t, uint8_t*, uint8_t*);
ADDR_GAME(
crypto_verifySignature,
"CCrypto::RSAVerifySignatureSHA256",
\x55\x8B\xEC\x6A\xFF\x68\x2A\x2A\x2A\x2A\x64\xA1\x00\x00\x00\x00\x50\x64\x89\x25\x00\x00\x00\x00\x81\xEC\xCC\x00\x00\x00,
xxxxxx????xxxxxxxxxxxxxxxxxxxx
);
bool hook_crypto_verifySignature(uint8_t*, uint8_t, uint8_t*, uint8_t, uint8_t*, uint8_t*)
{
return true;
}
typedef void (__fastcall *econItemSystem_parseItemSchemaFile)(intptr_t, void*, const char*);
ADDR_GAME(
econItemSystem_parseItemSchemaFile,
"CEconItemSystem::ParseItemSchemaFile",
\x55\x8B\xEC\x83\xEC\x14\x8B\x41\x04\x8D\x55\xEC\x83\xC1\x04\xC7\x45\xEC\x00\x00\x00\x00\x52\x68\x2A\x2A\x2A\x2A,
xxxxxxxxxxxxxxxxxxxxxxxx????
);
void __fastcall hook_server_econItemSystem_parseItemSchemaFile(intptr_t thisptr, void* edx, const char* filename)
{
if (helper_check_custom_itemsgame())
{
filename = CUSTOM_ITEMS_GAME;
Log(Color(0, 255, 127, 255), "Server: loading %s...\n", filename);
}
address_econItemSystem_parseItemSchemaFile[MOD_SERVER](thisptr, edx, filename);
}
void __fastcall hook_client_econItemSystem_parseItemSchemaFile(intptr_t thisptr, void* edx, const char* filename)
{
if (helper_check_custom_itemsgame())
{
filename = CUSTOM_ITEMS_GAME;
hook_server_econItemSystem_parseItemSchemaFile(address_econItemSystem[MOD_SERVER](), edx, filename);
Log(Color(0, 255, 127, 255), "Client: Loading %s...\n", filename);
}
address_econItemSystem_parseItemSchemaFile[MOD_CLIENT](thisptr, edx, filename);
}
bool is_demo_branch()
{
FileHandle_t f = filesystem->Open("steam.inf", "r");
if (!f)
{
Log(Color(255, 0, 0, 255), "Failed to open steam.inf\n");
return false;
}
bool demo_branch = false;
bool patch_version = false;
char buffer[256];
filesystem->Read(buffer, sizeof(buffer), f);
char* p = strtok(buffer, "=\r\n");
while (p)
{
if (patch_version)
{
if (atoi(p) <= 8207200)
demo_branch = true;
break;
}
if (!strcmp(p, "PatchVersion"))
patch_version = true;
p = strtok(NULL, "=\r\n");
}
filesystem->Close(f);
return demo_branch;
}
typedef bool (__fastcall* gcUpdateItemSchema_runJob)(intptr_t, void*, void*);
ADDR_GAME(
gcUpdateItemSchema_runJob,
"CGCUpdateItemSchema::BYieldingRunGCJob",
\x55\x8B\xEC\x83\xEC\x1C\x53\x57\x8B\xF9\x8D\x4D\xE4,
xxxxxxxxxxxxx
);
void __fastcall hook_gcUpdateItemSchema_runJob(intptr_t thisptr, void* edx, void* packet)
{
if (customItemsGameFound)
{
Log(Color(0, 255, 127, 255), "Blocked item schema update from GC\n");
}
else if (is_demo_branch())
{
Log(Color(0, 255, 127, 255), "Forcefully blocked item schema update from GC (demo branch detected)\n");
}
else
{
address_gcUpdateItemSchema_runJob.Resolve(Deref(thisptr))(thisptr, edx, packet);
}
}
#pragma optimize("", on)