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#include "pch.h"
#include "squirrel.h"
#include "hooks.h"
#include "hookutils.h"
#include "concommand.h"
#include "modmanager.h"
#include "gameutils.h"
#include "NSMem.h"
RegisterSquirrelFuncType ClientRegisterSquirrelFunc;
RegisterSquirrelFuncType ServerRegisterSquirrelFunc;
// inits
SquirrelManager<ScriptContext::CLIENT>* g_pClientSquirrel;
SquirrelManager<ScriptContext::SERVER>* g_pServerSquirrel;
SquirrelManager<ScriptContext::UI>* g_pUISquirrel;
template <ScriptContext context> SquirrelManager<context>* GetSquirrelManager()
{
switch (context)
{
case ScriptContext::CLIENT:
return g_pClientSquirrel;
case ScriptContext::SERVER:
return g_pServerSquirrel;
case ScriptContext::UI:
return g_pUISquirrel;
}
}
const char* GetContextName(ScriptContext context)
{
switch (context)
{
case ScriptContext::CLIENT:
return "CLIENT";
case ScriptContext::SERVER:
return "SERVER";
case ScriptContext::UI:
return "UI";
}
}
// hooks
typedef SQInteger (*SQPrintType)(void* sqvm, char* fmt, ...);
SQPrintType ClientSQPrint;
SQPrintType UISQPrint;
SQPrintType ServerSQPrint;
template <ScriptContext context> SQInteger SQPrintHook(void* sqvm, char* fmt, ...)
{
va_list va;
va_start(va, fmt);
SQChar buf[1024];
int charsWritten = vsnprintf_s(buf, _TRUNCATE, fmt, va);
if (charsWritten > 0)
{
if (buf[charsWritten - 1] == '\n')
buf[charsWritten - 1] = '\0';
spdlog::info("[{} SCRIPT] {}", GetContextName(context), buf);
}
va_end(va);
return 0;
}
typedef void* (*CreateNewVMType)(void* a1, ScriptContext contextArg);
CreateNewVMType ClientCreateNewVM;
CreateNewVMType ServerCreateNewVM;
template <ScriptContext context> void* CreateNewVMHook(void* a1, ScriptContext realContext)
{
void* sqvm;
if (context == ScriptContext::CLIENT)
{
sqvm = ClientCreateNewVM(a1, realContext);
if (realContext == ScriptContext::UI)
g_pUISquirrel->VMCreated(sqvm);
else
g_pClientSquirrel->VMCreated(sqvm);
}
else if (context == ScriptContext::SERVER)
{
sqvm = ServerCreateNewVM(a1, context);
g_pServerSquirrel->VMCreated(sqvm);
}
spdlog::info("CreateNewVM {} {}", GetContextName(realContext), sqvm);
return sqvm;
}
typedef void (*DestroyVMType)(void* a1, void* sqvm);
DestroyVMType ClientDestroyVM;
DestroyVMType ServerDestroyVM;
template <ScriptContext context> void DestroyVMHook(void* a1, void* sqvm)
{
ScriptContext realContext = context; // ui and client use the same function so we use this for prints
if (context == ScriptContext::CLIENT)
{
if (g_pClientSquirrel->sqvm == sqvm)
g_pClientSquirrel->VMDestroyed();
else if (g_pUISquirrel->sqvm == sqvm)
{
g_pUISquirrel->VMDestroyed();
realContext = ScriptContext::UI;
}
ClientDestroyVM(a1, sqvm);
}
else if (context == ScriptContext::SERVER)
{
g_pServerSquirrel->VMDestroyed();
ServerDestroyVM(a1, sqvm);
}
spdlog::info("DestroyVM {} {}", GetContextName(realContext), sqvm);
}
typedef void (*ScriptCompileError)(void* sqvm, const char* error, const char* file, int line, int column);
ScriptCompileError ClientSQCompileError;
ScriptCompileError ServerSQCompileError;
template <ScriptContext context> void ScriptCompileErrorHook(void* sqvm, const char* error, const char* file, int line, int column)
{
ScriptContext realContext = context; // ui and client use the same function so we use this for prints
if (context == ScriptContext::CLIENT && sqvm == g_pUISquirrel->sqvm2)
realContext = ScriptContext::UI;
spdlog::error("{} SCRIPT COMPILE ERROR {}", GetContextName(realContext), error);
spdlog::error("{} line [{}] column [{}]", file, line, column);
// use disconnect to display an error message for the compile error, but only if we aren't compiling from console, or from compilestring()
// TODO: compilestring can actually define a custom buffer name as the second arg, we don't currently have a way of checking this
// ideally we'd just check if the sqvm was fully initialised here, somehow
if (strcmp(file, "console") && strcmp(file, "unnamedbuffer"))
{
Cbuf_AddText(
Cbuf_GetCurrentPlayer(),
fmt::format("disconnect \"Encountered {} script compilation error, see console for details.\"", GetContextName(realContext))
.c_str(),
cmd_source_t::kCommandSrcCode);
if (realContext == ScriptContext::UI) // likely temp: show console so user can see any errors
Cbuf_AddText(Cbuf_GetCurrentPlayer(), "showconsole", cmd_source_t::kCommandSrcCode);
}
// dont call the original function since it kills game lol
}
typedef bool (*CallScriptInitCallbackType)(void* sqvm, const char* callback);
CallScriptInitCallbackType ClientCallScriptInitCallback;
CallScriptInitCallbackType ServerCallScriptInitCallback;
template <ScriptContext context> bool CallScriptInitCallbackHook(void* sqvm, const char* callback)
{
CallScriptInitCallbackType callScriptInitCallback;
ScriptContext realContext = context;
bool shouldCallCustomCallbacks = true;
if (context == ScriptContext::CLIENT)
{
callScriptInitCallback = ClientCallScriptInitCallback;
if (!strcmp(callback, "UICodeCallback_UIInit"))
realContext = ScriptContext::UI;
else if (strcmp(callback, "ClientCodeCallback_MapSpawn"))
shouldCallCustomCallbacks = false;
}
else if (context == ScriptContext::SERVER)
{
callScriptInitCallback = ServerCallScriptInitCallback;
shouldCallCustomCallbacks = !strcmp(callback, "CodeCallback_MapSpawn");
}
if (shouldCallCustomCallbacks)
{
for (Mod mod : g_ModManager->m_loadedMods)
{
if (!mod.Enabled)
continue;
for (ModScript script : mod.Scripts)
{
for (ModScriptCallback modCallback : script.Callbacks)
{
if (modCallback.Context == realContext && modCallback.BeforeCallback.length())
{
spdlog::info("Running custom {} script callback \"{}\"", GetContextName(realContext), modCallback.BeforeCallback);
callScriptInitCallback(sqvm, modCallback.BeforeCallback.c_str());
}
}
}
}
}
spdlog::info("{} CodeCallback {} called", GetContextName(realContext), callback);
if (!shouldCallCustomCallbacks)
spdlog::info("Not executing custom callbacks for CodeCallback {}", callback);
bool ret = callScriptInitCallback(sqvm, callback);
// run after callbacks
if (shouldCallCustomCallbacks)
{
for (Mod mod : g_ModManager->m_loadedMods)
{
if (!mod.Enabled)
continue;
for (ModScript script : mod.Scripts)
{
for (ModScriptCallback modCallback : script.Callbacks)
{
if (modCallback.Context == realContext && modCallback.AfterCallback.length())
{
spdlog::info("Running custom {} script callback \"{}\"", GetContextName(realContext), modCallback.AfterCallback);
callScriptInitCallback(sqvm, modCallback.AfterCallback.c_str());
}
}
}
}
}
return ret;
}
template <ScriptContext context> void ConCommand_script(const CCommand& args)
{
if (context == ScriptContext::CLIENT)
g_pClientSquirrel->ExecuteCode(args.ArgS());
else if (context == ScriptContext::UI)
g_pUISquirrel->ExecuteCode(args.ArgS());
else if (context == ScriptContext::SERVER)
g_pServerSquirrel->ExecuteCode(args.ArgS());
}
ON_DLL_LOAD_RELIESON("client.dll", ClientSquirrel, ConCommand, [](HMODULE baseAddress)
{
HookEnabler hook;
// client inits
g_pClientSquirrel = new SquirrelManager<ScriptContext::CLIENT>;
ENABLER_CREATEHOOK(
hook,
(char*)baseAddress + 0x12B00,
&SQPrintHook<ScriptContext::CLIENT>,
reinterpret_cast<LPVOID*>(&ClientSQPrint)); // client print function
RegisterConCommand("script_client", ConCommand_script<ScriptContext::CLIENT>, "Executes script code on the client vm", FCVAR_CLIENTDLL);
// ui inits
g_pUISquirrel = new SquirrelManager<ScriptContext::UI>;
ENABLER_CREATEHOOK(
hook,
(char*)baseAddress + 0x12BA0,
&SQPrintHook<ScriptContext::UI>,
reinterpret_cast<LPVOID*>(&UISQPrint)); // ui print function
RegisterConCommand("script_ui", ConCommand_script<ScriptContext::UI>, "Executes script code on the ui vm", FCVAR_CLIENTDLL);
g_pClientSquirrel->RegisterSquirrelFunc = (RegisterSquirrelFuncType)((char*)baseAddress + 0x108E0);
g_pUISquirrel->RegisterSquirrelFunc = (RegisterSquirrelFuncType)((char*)baseAddress + 0x108E0);
g_pClientSquirrel->sq_compilebuffer = (sq_compilebufferType)((char*)baseAddress + 0x3110);
g_pUISquirrel->sq_compilebuffer = (sq_compilebufferType)((char*)baseAddress + 0x3110);
g_pClientSquirrel->sq_pushroottable = (sq_pushroottableType)((char*)baseAddress + 0x5860);
g_pUISquirrel->sq_pushroottable = (sq_pushroottableType)((char*)baseAddress + 0x5860);
g_pClientSquirrel->sq_call = (sq_callType)((char*)baseAddress + 0x8650);
g_pUISquirrel->sq_call = (sq_callType)((char*)baseAddress + 0x8650);
g_pClientSquirrel->sq_newarray = (sq_newarrayType)((char*)baseAddress + 0x39F0);
g_pUISquirrel->sq_newarray = (sq_newarrayType)((char*)baseAddress + 0x39F0);
g_pClientSquirrel->sq_arrayappend = (sq_arrayappendType)((char*)baseAddress + 0x3C70);
g_pUISquirrel->sq_arrayappend = (sq_arrayappendType)((char*)baseAddress + 0x3C70);
g_pClientSquirrel->sq_pushstring = (sq_pushstringType)((char*)baseAddress + 0x3440);
g_pUISquirrel->sq_pushstring = (sq_pushstringType)((char*)baseAddress + 0x3440);
g_pClientSquirrel->sq_pushinteger = (sq_pushintegerType)((char*)baseAddress + 0x36A0);
g_pUISquirrel->sq_pushinteger = (sq_pushintegerType)((char*)baseAddress + 0x36A0);
g_pClientSquirrel->sq_pushfloat = (sq_pushfloatType)((char*)baseAddress + 0x3800);
g_pUISquirrel->sq_pushfloat = (sq_pushfloatType)((char*)baseAddress + 0x3800);
g_pClientSquirrel->sq_pushbool = (sq_pushboolType)((char*)baseAddress + 0x3710);
g_pUISquirrel->sq_pushbool = (sq_pushboolType)((char*)baseAddress + 0x3710);
g_pClientSquirrel->sq_raiseerror = (sq_raiseerrorType)((char*)baseAddress + 0x8470);
g_pUISquirrel->sq_raiseerror = (sq_raiseerrorType)((char*)baseAddress + 0x8470);
g_pClientSquirrel->sq_getstring = (sq_getstringType)((char*)baseAddress + 0x60C0);
g_pUISquirrel->sq_getstring = (sq_getstringType)((char*)baseAddress + 0x60C0);
g_pClientSquirrel->sq_getinteger = (sq_getintegerType)((char*)baseAddress + 0x60E0);
g_pUISquirrel->sq_getinteger = (sq_getintegerType)((char*)baseAddress + 0x60E0);
g_pClientSquirrel->sq_getfloat = (sq_getfloatType)((char*)baseAddress + 0x6100);
g_pUISquirrel->sq_getfloat = (sq_getfloatType)((char*)baseAddress + 0x6100);
g_pClientSquirrel->sq_getbool = (sq_getboolType)((char*)baseAddress + 0x6130);
g_pUISquirrel->sq_getbool = (sq_getboolType)((char*)baseAddress + 0x6130);
g_pClientSquirrel->sq_get = (sq_getType)((char*)baseAddress + 0x7C30);
g_pUISquirrel->sq_get = (sq_getType)((char*)baseAddress + 0x7C30);
// uiscript_reset concommand: don't loop forever if compilation fails
NSMem::NOP((uintptr_t)baseAddress + 0x3C6E4C, 6);
ENABLER_CREATEHOOK(
hook,
(char*)baseAddress + 0x26130,
&CreateNewVMHook<ScriptContext::CLIENT>,
reinterpret_cast<LPVOID*>(&ClientCreateNewVM)); // client createnewvm function
ENABLER_CREATEHOOK(
hook,
(char*)baseAddress + 0x26E70,
&DestroyVMHook<ScriptContext::CLIENT>,
reinterpret_cast<LPVOID*>(&ClientDestroyVM)); // client destroyvm function
ENABLER_CREATEHOOK(
hook,
(char*)baseAddress + 0x79A50,
&ScriptCompileErrorHook<ScriptContext::CLIENT>,
reinterpret_cast<LPVOID*>(&ClientSQCompileError)); // client compileerror function
ENABLER_CREATEHOOK(
hook,
(char*)baseAddress + 0x10190,
&CallScriptInitCallbackHook<ScriptContext::CLIENT>,
reinterpret_cast<LPVOID*>(&ClientCallScriptInitCallback)); // client callscriptinitcallback function
})
ON_DLL_LOAD_RELIESON("server.dll", ServerSquirrel, ConCommand, [](HMODULE baseAddress)
{
g_pServerSquirrel = new SquirrelManager<ScriptContext::SERVER>;
g_pServerSquirrel->RegisterSquirrelFunc = (RegisterSquirrelFuncType)((char*)baseAddress + 0x1DD10);
g_pServerSquirrel->sq_compilebuffer = (sq_compilebufferType)((char*)baseAddress + 0x3110);
g_pServerSquirrel->sq_pushroottable = (sq_pushroottableType)((char*)baseAddress + 0x5840);
g_pServerSquirrel->sq_call = (sq_callType)((char*)baseAddress + 0x8620);
g_pServerSquirrel->sq_newarray = (sq_newarrayType)((char*)baseAddress + 0x39F0);
g_pServerSquirrel->sq_arrayappend = (sq_arrayappendType)((char*)baseAddress + 0x3C70);
g_pServerSquirrel->sq_pushstring = (sq_pushstringType)((char*)baseAddress + 0x3440);
g_pServerSquirrel->sq_pushinteger = (sq_pushintegerType)((char*)baseAddress + 0x36A0);
g_pServerSquirrel->sq_pushfloat = (sq_pushfloatType)((char*)baseAddress + 0x3800);
g_pServerSquirrel->sq_pushbool = (sq_pushboolType)((char*)baseAddress + 0x3710);
g_pServerSquirrel->sq_raiseerror = (sq_raiseerrorType)((char*)baseAddress + 0x8440);
g_pServerSquirrel->sq_getstring = (sq_getstringType)((char*)baseAddress + 0x60A0);
g_pServerSquirrel->sq_getinteger = (sq_getintegerType)((char*)baseAddress + 0x60C0);
g_pServerSquirrel->sq_getfloat = (sq_getfloatType)((char*)baseAddress + 0x60E0);
g_pServerSquirrel->sq_getbool = (sq_getboolType)((char*)baseAddress + 0x6110);
g_pServerSquirrel->sq_get = (sq_getType)((char*)baseAddress + 0x7C00);
HookEnabler hook;
ENABLER_CREATEHOOK(
hook,
(char*)baseAddress + 0x1FE90,
&SQPrintHook<ScriptContext::SERVER>,
reinterpret_cast<LPVOID*>(&ServerSQPrint)); // server print function
ENABLER_CREATEHOOK(
hook,
(char*)baseAddress + 0x260E0,
&CreateNewVMHook<ScriptContext::SERVER>,
reinterpret_cast<LPVOID*>(&ServerCreateNewVM)); // server createnewvm function
ENABLER_CREATEHOOK(
hook,
(char*)baseAddress + 0x26E20,
&DestroyVMHook<ScriptContext::SERVER>,
reinterpret_cast<LPVOID*>(&ServerDestroyVM)); // server destroyvm function
ENABLER_CREATEHOOK(
hook,
(char*)baseAddress + 0x799E0,
&ScriptCompileErrorHook<ScriptContext::SERVER>,
reinterpret_cast<LPVOID*>(&ServerSQCompileError)); // server compileerror function
ENABLER_CREATEHOOK(
hook,
(char*)baseAddress + 0x1D5C0,
&CallScriptInitCallbackHook<ScriptContext::SERVER>,
reinterpret_cast<LPVOID*>(&ServerCallScriptInitCallback)); // server callscriptinitcallback function
// cheat and clientcmd_can_execute allows clients to execute this, but since it's unsafe we only allow it when cheats are enabled
// for script_client and script_ui, we don't use cheats, so clients can execute them on themselves all they want
RegisterConCommand(
"script",
ConCommand_script<ScriptContext::SERVER>,
"Executes script code on the server vm",
FCVAR_GAMEDLL | FCVAR_CLIENTCMD_CAN_EXECUTE | FCVAR_CHEAT);
})
|
