1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
|
#include "pch.h"
#include "squirrel.h"
#include "concommand.h"
#include "modmanager.h"
#include "dedicated.h"
#include "r2engine.h"
AUTOHOOK_INIT()
const char* GetContextName(ScriptContext context)
{
switch (context)
{
case ScriptContext::CLIENT:
return "CLIENT";
case ScriptContext::SERVER:
return "SERVER";
case ScriptContext::UI:
return "UI";
}
}
// hooks
template <ScriptContext context> void* (*sq_compiler_create)(void* sqvm, void* a2, void* a3, SQBool bShouldThrowError);
template <ScriptContext context> void* sq_compiler_createHook(void* sqvm, void* a2, void* a3, SQBool bShouldThrowError)
{
// store whether errors generated from this compile should be fatal
if (sqvm == g_pSquirrel<ScriptContext::UI>->sqvm2)
g_pSquirrel<ScriptContext::UI>->m_bCompilationErrorsFatal = bShouldThrowError;
else
g_pSquirrel<context>->m_bCompilationErrorsFatal = bShouldThrowError;
return sq_compiler_create<context>(sqvm, a2, a3, bShouldThrowError);
}
template <ScriptContext context> SQInteger (*SQPrint)(void* sqvm, const char* fmt);
template <ScriptContext context> SQInteger SQPrintHook(void* sqvm, const 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;
}
template <ScriptContext context> void* (*CreateNewVM)(void* a1, ScriptContext contextArg);
template <ScriptContext context> void* CreateNewVMHook(void* a1, ScriptContext realContext)
{
void* sqvm = CreateNewVM<context>(a1, realContext);
if (realContext == ScriptContext::UI)
g_pSquirrel<ScriptContext::UI>->VMCreated(sqvm);
else
g_pSquirrel<context>->VMCreated(sqvm);
spdlog::info("CreateNewVM {} {}", GetContextName(realContext), sqvm);
return sqvm;
}
template <ScriptContext context> void (*DestroyVM)(void* a1, void* sqvm);
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 (sqvm == g_pSquirrel<ScriptContext::UI>->sqvm)
{
realContext = ScriptContext::UI;
g_pSquirrel<ScriptContext::UI>->VMDestroyed();
}
else
DestroyVM<context>(a1, sqvm);
spdlog::info("DestroyVM {} {}", GetContextName(realContext), sqvm);
}
template <ScriptContext context> void (*SQCompileError)(void* sqvm, const char* error, const char* file, int line, int column);
template <ScriptContext context> void ScriptCompileErrorHook(void* sqvm, const char* error, const char* file, int line, int column)
{
bool bIsFatalError = g_pSquirrel<context>->m_bCompilationErrorsFatal;
ScriptContext realContext = context; // ui and client use the same function so we use this for prints
if (sqvm == g_pSquirrel<ScriptContext::UI>->sqvm2)
{
realContext = ScriptContext::UI;
bIsFatalError = g_pSquirrel<ScriptContext::UI>->m_bCompilationErrorsFatal;
}
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 the compilation error was fatal
// todo, we could get this from sqvm itself probably, rather than hooking sq_compiler_create
if (bIsFatalError)
{
// kill dedicated server if we hit this
if (IsDedicatedServer())
abort();
else
{
R2::Cbuf_AddText(
R2::Cbuf_GetCurrentPlayer(),
fmt::format("disconnect \"Encountered {} script compilation error, see console for details.\"", GetContextName(realContext))
.c_str(),
R2::cmd_source_t::kCommandSrcCode);
// likely temp: show console so user can see any errors, as error message wont display if ui is dead
// maybe we could disable all mods other than the coremods and try a reload before doing this?
// could also maybe do some vgui bullshit to show something visually rather than console
if (realContext == ScriptContext::UI)
R2::Cbuf_AddText(R2::Cbuf_GetCurrentPlayer(), "showconsole", R2::cmd_source_t::kCommandSrcCode);
}
}
// dont call the original function since it kills game lol
}
template <ScriptContext context> bool (*CallScriptInitCallback)(void* sqvm, const char* callback);
template <ScriptContext context> bool CallScriptInitCallbackHook(void* sqvm, const char* callback)
{
ScriptContext realContext = context;
bool bShouldCallCustomCallbacks = true;
if (context == ScriptContext::CLIENT)
{
if (!strcmp(callback, "UICodeCallback_UIInit"))
realContext = ScriptContext::UI;
else if (strcmp(callback, "ClientCodeCallback_MapSpawn"))
bShouldCallCustomCallbacks = false;
}
else if (context == ScriptContext::SERVER)
bShouldCallCustomCallbacks = !strcmp(callback, "CodeCallback_MapSpawn");
if (bShouldCallCustomCallbacks)
{
for (Mod mod : g_pModManager->m_LoadedMods)
{
if (!mod.m_bEnabled)
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<context>(sqvm, modCallback.BeforeCallback.c_str());
}
}
}
}
}
spdlog::info("{} CodeCallback {} called", GetContextName(realContext), callback);
if (!bShouldCallCustomCallbacks)
spdlog::info("Not executing custom callbacks for CodeCallback {}", callback);
bool ret = CallScriptInitCallback<context>(sqvm, callback);
// run after callbacks
if (bShouldCallCustomCallbacks)
{
for (Mod mod : g_pModManager->m_LoadedMods)
{
if (!mod.m_bEnabled)
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<context>(sqvm, modCallback.AfterCallback.c_str());
}
}
}
}
}
return ret;
}
template <ScriptContext context> void ConCommand_script(const CCommand& args)
{
g_pSquirrel<context>->ExecuteCode(args.ArgS());
}
ON_DLL_LOAD_RELIESON("client.dll", ClientSquirrel, ConCommand, (CModule module))
{
AUTOHOOK_DISPATCH_MODULE(client.dll)
g_pSquirrel<ScriptContext::CLIENT> = new SquirrelManager<ScriptContext::CLIENT>;
g_pSquirrel<ScriptContext::UI> = new SquirrelManager<ScriptContext::UI>;
g_pSquirrel<ScriptContext::CLIENT>->RegisterSquirrelFunc = module.Offset(0x108E0).As<RegisterSquirrelFuncType>();
g_pSquirrel<ScriptContext::UI>->RegisterSquirrelFunc = g_pSquirrel<ScriptContext::CLIENT>->RegisterSquirrelFunc;
g_pSquirrel<ScriptContext::CLIENT>->__sq_compilebuffer = module.Offset(0x3110).As<sq_compilebufferType>();
g_pSquirrel<ScriptContext::CLIENT>->__sq_pushroottable = module.Offset(0x5860).As<sq_pushroottableType>();
g_pSquirrel<ScriptContext::UI>->__sq_compilebuffer = g_pSquirrel<ScriptContext::CLIENT>->__sq_compilebuffer;
g_pSquirrel<ScriptContext::UI>->__sq_pushroottable = g_pSquirrel<ScriptContext::CLIENT>->__sq_pushroottable;
g_pSquirrel<ScriptContext::CLIENT>->__sq_call = module.Offset(0x8650).As<sq_callType>();
g_pSquirrel<ScriptContext::UI>->__sq_call = g_pSquirrel<ScriptContext::CLIENT>->__sq_call;
g_pSquirrel<ScriptContext::CLIENT>->__sq_newarray = module.Offset(0x39F0).As<sq_newarrayType>();
g_pSquirrel<ScriptContext::CLIENT>->__sq_arrayappend = module.Offset(0x3C70).As<sq_arrayappendType>();
g_pSquirrel<ScriptContext::UI>->__sq_newarray = g_pSquirrel<ScriptContext::CLIENT>->__sq_newarray;
g_pSquirrel<ScriptContext::UI>->__sq_arrayappend = g_pSquirrel<ScriptContext::CLIENT>->__sq_arrayappend;
g_pSquirrel<ScriptContext::CLIENT>->__sq_pushstring = module.Offset(0x3440).As<sq_pushstringType>();
g_pSquirrel<ScriptContext::CLIENT>->__sq_pushinteger = module.Offset(0x36A0).As<sq_pushintegerType>();
g_pSquirrel<ScriptContext::CLIENT>->__sq_pushfloat = module.Offset(0x3800).As<sq_pushfloatType>();
g_pSquirrel<ScriptContext::CLIENT>->__sq_pushbool = module.Offset(0x3710).As<sq_pushboolType>();
g_pSquirrel<ScriptContext::CLIENT>->__sq_raiseerror = module.Offset(0x8470).As<sq_raiseerrorType>();
g_pSquirrel<ScriptContext::UI>->__sq_pushstring = g_pSquirrel<ScriptContext::CLIENT>->__sq_pushstring;
g_pSquirrel<ScriptContext::UI>->__sq_pushinteger = g_pSquirrel<ScriptContext::CLIENT>->__sq_pushinteger;
g_pSquirrel<ScriptContext::UI>->__sq_pushfloat = g_pSquirrel<ScriptContext::CLIENT>->__sq_pushfloat;
g_pSquirrel<ScriptContext::UI>->__sq_pushbool = g_pSquirrel<ScriptContext::CLIENT>->__sq_pushbool;
g_pSquirrel<ScriptContext::UI>->__sq_raiseerror = g_pSquirrel<ScriptContext::CLIENT>->__sq_raiseerror;
g_pSquirrel<ScriptContext::CLIENT>->__sq_getstring = module.Offset(0x60C0).As<sq_getstringType>();
g_pSquirrel<ScriptContext::CLIENT>->__sq_getinteger = module.Offset(0x60E0).As<sq_getintegerType>();
g_pSquirrel<ScriptContext::CLIENT>->__sq_getfloat = module.Offset(0x6100).As<sq_getfloatType>();
g_pSquirrel<ScriptContext::CLIENT>->__sq_getbool = module.Offset(0x6130).As<sq_getboolType>();
g_pSquirrel<ScriptContext::CLIENT>->__sq_get = module.Offset(0x7C30).As<sq_getType>();
g_pSquirrel<ScriptContext::UI>->__sq_getstring = g_pSquirrel<ScriptContext::CLIENT>->__sq_getstring;
g_pSquirrel<ScriptContext::UI>->__sq_getinteger = g_pSquirrel<ScriptContext::CLIENT>->__sq_getinteger;
g_pSquirrel<ScriptContext::UI>->__sq_getfloat = g_pSquirrel<ScriptContext::CLIENT>->__sq_getfloat;
g_pSquirrel<ScriptContext::UI>->__sq_getbool = g_pSquirrel<ScriptContext::CLIENT>->__sq_getbool;
g_pSquirrel<ScriptContext::UI>->__sq_get = g_pSquirrel<ScriptContext::CLIENT>->__sq_get;
// uiscript_reset concommand: don't loop forever if compilation fails
module.Offset(0x3C6E4C).NOP(6);
MAKEHOOK(module.Offset(0x8AD0),
&sq_compiler_createHook<ScriptContext::CLIENT>,
&sq_compiler_create<ScriptContext::CLIENT>);
MAKEHOOK(module.Offset(0x12B00), &SQPrintHook<ScriptContext::CLIENT>, &SQPrint<ScriptContext::CLIENT>);
MAKEHOOK(module.Offset(0x12BA0), &SQPrintHook<ScriptContext::UI>, &SQPrint<ScriptContext::UI>);
MAKEHOOK(module.Offset(0x26130), &CreateNewVMHook<ScriptContext::CLIENT>, &CreateNewVM<ScriptContext::CLIENT>);
MAKEHOOK(module.Offset(0x26E70), &DestroyVMHook<ScriptContext::CLIENT>, &DestroyVM<ScriptContext::CLIENT>);
MAKEHOOK(
module.Offset(0x79A50),
&ScriptCompileErrorHook<ScriptContext::CLIENT>,
&SQCompileError<ScriptContext::CLIENT>);
MAKEHOOK(
module.Offset(0x10190),
&CallScriptInitCallbackHook<ScriptContext::CLIENT>,
&CallScriptInitCallback<ScriptContext::CLIENT>);
RegisterConCommand("script_client", ConCommand_script<ScriptContext::CLIENT>, "Executes script code on the client vm", FCVAR_CLIENTDLL);
RegisterConCommand("script_ui", ConCommand_script<ScriptContext::UI>, "Executes script code on the ui vm", FCVAR_CLIENTDLL);
}
ON_DLL_LOAD_RELIESON("server.dll", ServerSquirrel, ConCommand, (CModule module))
{
AUTOHOOK_DISPATCH_MODULE(server.dll)
g_pSquirrel<ScriptContext::SERVER> = new SquirrelManager<ScriptContext::SERVER>;
g_pSquirrel<ScriptContext::SERVER>->RegisterSquirrelFunc = module.Offset(0x1DD10).As<RegisterSquirrelFuncType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_compilebuffer = module.Offset(0x3110).As<sq_compilebufferType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_pushroottable = module.Offset(0x5840).As<sq_pushroottableType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_call = module.Offset(0x8620).As<sq_callType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_newarray = module.Offset(0x39F0).As<sq_newarrayType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_arrayappend = module.Offset(0x3C70).As<sq_arrayappendType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_pushstring = module.Offset(0x3440).As<sq_pushstringType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_pushinteger = module.Offset(0x36A0).As<sq_pushintegerType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_pushfloat = module.Offset(0x3800).As<sq_pushfloatType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_pushbool = module.Offset(0x3710).As<sq_pushboolType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_raiseerror = module.Offset(0x8440).As<sq_raiseerrorType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_getstring = module.Offset(0x60A0).As<sq_getstringType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_getinteger = module.Offset(0x60C0).As<sq_getintegerType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_getfloat = module.Offset(0x60E0).As<sq_getfloatType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_getbool = module.Offset(0x6110).As<sq_getboolType>();
g_pSquirrel<ScriptContext::SERVER>->__sq_get = module.Offset(0x7C00).As<sq_getType>();
MAKEHOOK(module.Offset(0x8AA0),
&sq_compiler_createHook<ScriptContext::SERVER>,
&sq_compiler_create<ScriptContext::SERVER>);
MAKEHOOK(module.Offset(0x1FE90), &SQPrintHook<ScriptContext::SERVER>, &SQPrint<ScriptContext::SERVER>);
MAKEHOOK(module.Offset(0x260E0), &CreateNewVMHook<ScriptContext::SERVER>, &CreateNewVM<ScriptContext::SERVER>);
MAKEHOOK(module.Offset(0x26E20), &DestroyVMHook<ScriptContext::SERVER>, &DestroyVM<ScriptContext::SERVER>);
MAKEHOOK(
module.Offset(0x799E0),
&ScriptCompileErrorHook<ScriptContext::SERVER>,
&SQCompileError<ScriptContext::SERVER>);
MAKEHOOK(
module.Offset(0x1D5C0),
&CallScriptInitCallbackHook<ScriptContext::SERVER>,
&CallScriptInitCallback<ScriptContext::SERVER>);
// FCVAR_CHEAT and FCVAR_GAMEDLL_FOR_REMOTE_CLIENTS 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_GAMEDLL_FOR_REMOTE_CLIENTS | FCVAR_CHEAT);
}
|
