feat: added "sho:SetAbsOrigin" hook

shockpast · Nov 30, 2024 · 0ed0eae · 0ed0eae
1 parent 6b9ef0c
commit 0ed0eae
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Showing 10 changed files with 120 additions and 18 deletions.
diff --git a/README.md b/README.md
@@ -1,2 +1,6 @@
 # gmsv_sho
-idk, it removes `do_constraint_system: Couldn't invert rot matrix!` message, maybe it works, idkkkkkkkkkkkkk
+idk, it removes `do_constraint_system: Couldn't invert rot matrix!` message, maybe it works, idkkkkkkkkkkkkk
+
+## hooks
+### `sho:SetAbsOrigin`
+it has 1 argument, `number idx`, it's id of entity that would spam message "Ignoring Unreasonable Position!", you can hook it and then just remove it, so it won't garbage your server, or do whatever with it *(beware, players can also trigger it)*
diff --git a/examples/setabsorigin.lua b/examples/setabsorigin.lua
@@ -0,0 +1,16 @@
+hook.Add("sho:SetAbsOrigin", "t", function(class, idx)
+  local ent = Entity(idx)
+  if not IsValid(ent) then return end
+  if ent:IsPlayer() then
+    print(ent, " was in wrong position.")
+    print(ent:SteamID())
+
+    ent:SetPos(Vector(0, 0, 0))
+    return -- just don't delete your player, pretty please :)
+  end
+
+  print(ent, " was removed")
+  print(ent:GetPos())
+
+  ent:Remove()
+end)
diff --git a/premake5.lua b/premake5.lua
@@ -27,13 +27,13 @@ CreateWorkspace({ name = "sho", abi_compatible = false })
         IncludeSDKTier0()
         IncludeSDKTier1()
         --IncludeSDKTier3()
+        IncludeDetouring()
+        IncludeScanning()
+        --IncludeSteamAPI()
         --IncludeSDKMathlib()
         --IncludeSDKRaytrace()
         --IncludeSDKBitmap()
         --IncludeSDKVTF()
-        --IncludeSteamAPI()
-        IncludeDetouring()
-        IncludeScanning()
 
         files({
             [[source/modules/*.h]],

diff --git a/source/lua.cpp b/source/lua.cpp
@@ -0,0 +1,16 @@
+#include <GarrysMod/Lua/LuaInterface.h>
+
+#include "lua.h"
+#include "main.h"
+
+void lua::PushHook(const char* name)
+{
+  g_Lua->PushSpecial(GarrysMod::Lua::SPECIAL_GLOB);
+  g_Lua->GetField(-1, "hook");
+  g_Lua->GetField(-1, "Run");
+  int reference = g_Lua->ReferenceCreate();
+  g_Lua->Pop(2);
+  g_Lua->ReferencePush(reference);
+  g_Lua->ReferenceFree(reference);
+  g_Lua->PushString(name);
+}
diff --git a/source/lua.h b/source/lua.h
@@ -0,0 +1,4 @@
+namespace lua
+{
+  void PushHook(const char* name);
+}
diff --git a/source/main.cpp b/source/main.cpp
@@ -1,10 +1,13 @@
 #include <GarrysMod/Lua/Interface.h>
 #include <interfaces/interfaces.h>
 
+#include "main.h"
 #include "modules/hush.h"
 
 GMOD_MODULE_OPEN()
 {
+  g_Lua = LUA;
+
   hush::initialize();
 
   return 0;

diff --git a/source/main.h b/source/main.h
@@ -0,0 +1,6 @@
+namespace GarrysMod::Lua
+{
+  class ILuaBase;
+}
+
+inline GarrysMod::Lua::ILuaBase* g_Lua = nullptr;
diff --git a/source/modules/hush.cpp b/source/modules/hush.cpp
@@ -3,8 +3,12 @@
 #include <stdio.h>
 #include <regex>
 
+#include <GarrysMod/Lua/LuaInterface.h>
+
+#include "lua.h"
 #include "hush.h"
 #include "detour.h"
+#include "main.h"
 
 #define MAX_ERROR_BUFFER_LEN 10000 // vphysics
 #define MAX_MAKE_STRING_LEN 10000 // vphysics
@@ -18,7 +22,7 @@ void hook_ivp_message(const char* pMsgFormat, ...)
   va_list args;
   va_start(args, pMsgFormat);
 
-  detour_ivp_message.GetTrampoline<symbols::ivp_message>()(pMsgFormat, args);
+  detour_ivp_message.GetTrampoline<symbols::vphysics_ivp_message>()(pMsgFormat, args);
 }
 
 static Detouring::Hook detour_ConMsg;
@@ -36,14 +40,47 @@ void hook_ConMsg(const char* pMsgFormat, ...)
   va_end(args);
 
   // todo: putting just va_list seems to corrupt arguments in string...
-  detour_ConMsg.GetTrampoline<symbols::ConMsg>()(buf, args);
+  detour_ConMsg.GetTrampoline<symbols::libtier0_ConMsg>()(buf, args);
+}
+
+static Detouring::Hook detour_Warning;
+void hook_Warning(const char* pMsgFormat, ...)
+{
+  if (strstr(pMsgFormat, "%s[%i]:SetAbsOrigin( %f %f %f ): Ignoring unreasonable position.")) // ? this looks messy
+  {
+    va_list args;
+    va_start(args, pMsgFormat);
+
+    const char* entityClass = va_arg(args, const char*); // ?
+    int entityIndex = va_arg(args, int);
+
+    va_end(args);
+
+    lua::PushHook("sho:SetAbsOrigin"); // todo i need something unique and good looking
+    g_Lua->PushString(entityClass); // it's not needed, but i will just send it 😎
+    g_Lua->PushNumber(entityIndex);
+    g_Lua->PCall(3, 0, true);
+
+    return;
+  }
+
+  va_list args;
+  va_start(args, pMsgFormat);
+
+  char buf[4096];
+  vsprintf(buf, pMsgFormat, args);
+
+  va_end(args);
+
+  detour_Warning.GetTrampoline<symbols::libtier0_Warning>()(buf, args);
 }
 
 void hush::initialize()
 {
   SourceSDK::ModuleLoader vphysics("vphysics");
-  detour::Create(&detour_ivp_message, "ivp_message", vphysics.GetModule(), symbols::ivp_messageSym, (void*)hook_ivp_message, 0);
+  detour::Create(&detour_ivp_message, "ivp_message", vphysics.GetModule(), symbols::vphysics_ivp_messageSym, (void*)hook_ivp_message, 0);
 
   SourceSDK::ModuleLoader tier0("libtier0");
-  detour::Create(&detour_ConMsg, "ConMsg", tier0.GetModule(), symbols::ConMsgSym, (void*)hook_ConMsg, 0);
+  detour::Create(&detour_ConMsg, "ConMsg", tier0.GetModule(), symbols::libtier0_ConMsgSym, (void*)hook_ConMsg, 0);
+  detour::Create(&detour_Warning, "Warning", tier0.GetModule(), symbols::libtier0_WarningSym, (void*)hook_Warning, 0);
 }
diff --git a/source/symbols.cpp b/source/symbols.cpp
@@ -5,19 +5,29 @@ static Symbol NULL_SYMBOL = Symbol::FromSignature("");
 namespace symbols
 {
   //---------------------------------------------------------------------------------
-  // Purpose: "hush" Symbols
+  // Purpose: vphysics Symbols
   //---------------------------------------------------------------------------------
-  const std::vector<Symbol> ivp_messageSym = {
-    //
-    Symbol::FromName("_Z11ivp_messagePKcz"), // not sure
+  const std::vector<Symbol> vphysics_ivp_messageSym = {
+    // not sure
+    Symbol::FromName("_Z11ivp_messagePKcz"),
     // 55 48 89 E5 41 54 53 48 81 EC ? ? ? ? 84 C0 48 89 B5 ? ? ? ? 48 89 95 ? ? ? ? 48 89 8D ? ? ? ? 4C 89 85 ? ? ? ? 4C 89 8D ? ? ? ? 74 ? 0F 29 85 ? ? ? ? 0F 29 4D ? 0F 29 55 ? 0F 29 5D ? 0F 29 65 ? 0F 29 6D ? 0F 29 75 ? 0F 29 7D ? 48 8D 9D ? ? ? ? 31 F6 49 89 FC 64 48 8B 04 25 ? ? ? ? 48 89 85 ? ? ? ? 31 C0 BA ? ? ? ? 48 89 DF E8 ? ? ? ? 4C 8D 8D
     Symbol::FromSignature("\x55\x48\x89\xE5\x41\x54\x53\x48\x81\xEC****\x84\xC0\x48\x89\xB5****\x48\x89\x95****\x48\x89\x8D****\x4C\x89\x85****\x4C\x89\x8D****\x74*\x0F\x29\x85****\x0F\x29\x4D*\x0F\x29\x55*\x0F\x29\x5D*\x0F\x29\x65*\x0F\x29\x6D*\x0F\x29\x75*\x0F\x29\x7D*\x48\x8D\x9D****\x31\xF6\x49\x89\xFC\x64\x48\x8B\x04\x25****\x48\x89\x85****\x31\xC0\xBA****\x48\x89\xDF\xE8****\x4C\x8D\x8D")
   };
 
-  const std::vector<Symbol> ConMsgSym = {
+  //---------------------------------------------------------------------------------
+  // Purpose: tier0 Symbols
+  //---------------------------------------------------------------------------------
+  const std::vector<Symbol> libtier0_ConMsgSym = {
     //
     NULL_SYMBOL,
     //
     Symbol::FromName("_Z6ConMsgPKcz")
   };
+
+  const std::vector<Symbol> libtier0_WarningSym = {
+    //
+    NULL_SYMBOL,
+    // huh
+    Symbol::FromName("Warning")
+  };
 }
diff --git a/source/symbols.h b/source/symbols.h
@@ -18,11 +18,17 @@ class Color;
 namespace symbols
 {
   //---------------------------------------------------------------------------------
-  // Purpose: "hush" Symbols
+  // Purpose: vphysics Symbols
   //---------------------------------------------------------------------------------
-  typedef void (GMCOMMON_CALLING_CONVENTION* ivp_message)(const char* templat, ...);
-  extern const std::vector<Symbol> ivp_messageSym;
+  typedef void (GMCOMMON_CALLING_CONVENTION* vphysics_ivp_message)(const char* templat, va_list args);
+  extern const std::vector<Symbol> vphysics_ivp_messageSym;
 
-  typedef void (GMCOMMON_CALLING_CONVENTION* ConMsg)(const char* pMsgFormat, va_list args);
-  extern const std::vector<Symbol> ConMsgSym;
+  //---------------------------------------------------------------------------------
+  // Purpose: tier0 Symbols
+  //---------------------------------------------------------------------------------
+  typedef void (GMCOMMON_CALLING_CONVENTION* libtier0_ConMsg)(const char* pMsgFormat, va_list args);
+  extern const std::vector<Symbol> libtier0_ConMsgSym;
+
+  typedef void (GMCOMMON_CALLING_CONVENTION* libtier0_Warning)(const char* pMsgFormat, va_list args);
+  extern const std::vector<Symbol> libtier0_WarningSym;
 }