407 lines
12 KiB
SourcePawn
407 lines
12 KiB
SourcePawn
#define PLUGIN_VERSION "1377"
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/*=======================================================================================
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Plugin Info:
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* Name : [ANY] Spray Exploit Fixer
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* Author : SilverShot
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* Descrp : Deletes bad sprays and prevents them from crashing clients.
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* Link : https://forums.alliedmods.net/showthread.php?t=323447
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* Plugins : https://sourcemod.net/plugins.php?exact=exact&sortby=title&search=1&author=Silvers
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========================================================================================
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Change Log:
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1.5 (14-May-2020)
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- Added better error log message when gamedata file is missing.
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- Fixed gamedata for HL2:DM. Thanks to "CliptonHeist" for reporting and "asherkin" for explaining engine != game.
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- (Info: the gamedata "engine" key for HL2:DM uses "hl2dm" (the engine name) while the "game" part uses "hl2mp" (game name) e.g. for offsets).
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1.4 (10-May-2020)
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- Added support for "Zombie Panic! Source" game. Requires gamedata update.
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- Fixed "sm_spray_test" timing out when checking many sprays. Thanks to "Sreaper" for reporting and testing.
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- Now checks 50 files and waits 0.1 seconds before checking the next batch.
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- TF2 updated to fix clients crashing, but this plugin is still recommended to delete the other randomly uploaded user files.
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1.3 (26-Apr-2020)
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- Changed cvar "spray_exploit_fixer_log" to log all files or only invalid sprays.
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- Logging now saves to "sourcemod/logs/spray_downloads.log" file.
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1.2 (23-Apr-2020)
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- Added better checks to detect more bad sprays.
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- Added better checks for TF2 and other games to avoid false positives.
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- Prevented banning people in TF2 since many random invalid files are sent, not just sprays.
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1.1 (21-Apr-2020)
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- Added better checks to prevent false positives.
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- Added ability to detect the users uploading sprays or other files.
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- Added cvar "spray_exploit_fixer_ban" to ban players with invalid sprays.
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- Added cvar "spray_exploit_fixer_log" to log players and files they uploaded.
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- Changed "sm_spray_test" to allow recursive searching the downloads directory.
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- Fixed plugin crashing TF2.
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- Updated GameData required.
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1.0 (20-Apr-2020)
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- Initial release.
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======================================================================================*/
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#pragma semicolon 1
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#pragma newdecls required
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#include <sourcemod>
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#include <sdktools>
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#include <dhooks>
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#define GAMEDATA "spray_exploit_fixer"
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#define MAX_READ 50
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int g_iVal[] = {86,84,70,0,7,0,0,0,42,0,0,0,42,0,0,0,42,42,42,42,42,42,42,42,42,42,42,0};
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char g_sFilename[PLATFORM_MAX_PATH];
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EngineVersion g_iEngine;
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public Plugin myinfo =
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{
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name = "[ANY] Spray Exploit Fixer",
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author = "SilverShot + Neon",
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description = "Deletes bad sprays and prevents them from crashing clients.",
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version = PLUGIN_VERSION,
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url = "https://forums.alliedmods.net/showthread.php?t=323447"
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}
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public APLRes AskPluginLoad2(Handle myself, bool late, char[] error, int err_max)
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{
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g_iEngine = GetEngineVersion();
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return APLRes_Success;
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}
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public void OnPluginStart()
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{
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char sPath[PLATFORM_MAX_PATH];
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BuildPath(Path_SM, sPath, sizeof(sPath), "gamedata/%s.txt", GAMEDATA);
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if( FileExists(sPath) == false ) SetFailState("\n==========\nMissing required file: \"%s\".\nRead installation instructions again.\n==========", sPath);
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Handle hGameData = LoadGameConfigFile(GAMEDATA);
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if( hGameData == null ) SetFailState("Failed to load \"%s.txt\" gamedata.", GAMEDATA);
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Handle hDetour = DHookCreateFromConf(hGameData, "CGameClient::FileReceived");
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if( !hDetour )
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SetFailState("Failed to find \"CGameClient::FileReceived\" signature.");
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if( !DHookEnableDetour(hDetour, false, FileReceived) )
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SetFailState("Failed to detour \"CGameClient::FileReceived\".");
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if( !DHookEnableDetour(hDetour, true, FileReceivedPost) )
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SetFailState("Failed to detour \"CGameClient::FileReceived\" post.");
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delete hDetour;
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delete hGameData;
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RegAdminCmd("sm_spray_test", CmdSprays, ADMFLAG_RCON, "Tests all sprays in the games downloads folder, listing bad ones.");
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CreateConVar( "spray_exploit_fixer", PLUGIN_VERSION, "Spray Exploit Fixer plugin version.", FCVAR_DONTRECORD);
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}
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float g_fTime;
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public Action CmdSprays(int client, int a)
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{
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bool recurse = g_iEngine != Engine_Left4Dead && g_iEngine != Engine_Left4Dead2;
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int count, counts;
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g_fTime = GetEngineTime();
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RecursiveSearchDirs(client, recurse, recurse ? "download" : "downloads", count, counts, 0, null);
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return Plugin_Handled;
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}
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public Action TimerNext(Handle timer, DataPack dPack)
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{
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DirectoryListing hDir;
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char sDir[PLATFORM_MAX_PATH];
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int client, count, counts, level;
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bool recurse;
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dPack.Reset();
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client = dPack.ReadCell();
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recurse = dPack.ReadCell();
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dPack.ReadString(sDir, sizeof(sDir));
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count = dPack.ReadCell();
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counts = dPack.ReadCell();
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level = dPack.ReadCell();
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hDir = dPack.ReadCell();
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RecursiveSearchDirs(client, recurse, sDir, count, counts, level, hDir);
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return Plugin_Handled;
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}
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void RecursiveSearchDirs(int client, bool recurse, const char[] sDir, int &count, int &counts, int level, DirectoryListing hDir)
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{
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char sPath[PLATFORM_MAX_PATH];
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FileType type;
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File hFile;
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int iRead[sizeof(g_iVal)];
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int total;
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level++;
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if( hDir == null )
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hDir = OpenDirectory(sDir, true);
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while( hDir.GetNext(sPath, sizeof(sPath), type) )
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{
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if( strcmp(sPath, ".") && strcmp(sPath, "..") )
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{
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if( type == FileType_Directory && recurse )
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{
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Format(sPath, sizeof(sPath), "%s/%s", sDir, sPath);
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RecursiveSearchDirs(client, recurse, sPath, count, counts, level, null);
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}
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else if( type == FileType_File )
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{
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int len = strlen(sPath);
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if( len > 4 && strcmp(sPath[len - 4], ".dat") == 0 )
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{
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counts++;
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Format(sPath, sizeof(sPath), "%s/%s", sDir, sPath);
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hFile = OpenFile(sPath, "rb");
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hFile.Read(iRead, sizeof(iRead), 1);
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delete hFile;
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int i = ValFile(iRead);
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if( i != -1 )
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{
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count++;
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PrintToServer("Invalid file: %s: %02d (%02X <> %02X)", sPath, i, iRead[i], g_iVal[i]);
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}
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}
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}
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if( total++ > MAX_READ )
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{
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level--;
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DataPack dPack;
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CreateDataTimer(0.1, TimerNext, dPack);
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dPack.WriteCell(client);
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dPack.WriteCell(recurse);
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dPack.WriteString(sDir);
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dPack.WriteCell(count);
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dPack.WriteCell(counts);
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dPack.WriteCell(level);
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dPack.WriteCell(hDir);
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return;
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}
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}
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}
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delete hDir;
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level--;
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if( level == 0 )
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ReplyToCommand(client, "Sprays checked. Found %d of %d invalid. Took %0.1f seconds.", count, counts, GetEngineTime() - g_fTime);
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}
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public MRESReturn FileReceived(int pThis, Handle hReturn, Handle hParams)
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{
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char sTemp[PLATFORM_MAX_PATH - 10];
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DHookGetParamString(hParams, 1, sTemp, sizeof(sTemp));
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Format(g_sFilename, sizeof(g_sFilename), "download/%s", sTemp);
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if( FileExists(g_sFilename) )
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{
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int len = strlen(g_sFilename);
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if( len > 4 && strcmp(g_sFilename[len - 4], ".dat") == 0 )
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{
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int iRead[sizeof(g_iVal)];
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File hFile = OpenFile(g_sFilename, "rb", false);
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hFile.Read(iRead, sizeof(iRead), 1);
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delete hFile;
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int i = ValFile(iRead);
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if( i != -1 )
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{
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LogCustom("Deleted invalid spray: %s", g_sFilename);
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PrintToServer("Invalid file: %s: %02d (%02X <> %02X)", g_sFilename, i, iRead[i], g_iVal[i]);
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//LogCustom("Invalid file: %s: %02d (%02X <> %02X)", g_sFilename, i, iRead[i], g_iVal[i]);
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DeleteFile(g_sFilename);
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for (int j = 1; j <= MaxClients; j++)
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{
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if (IsValidClient(j))
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{
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char sTemp2[PLATFORM_MAX_PATH - 4];
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GetPlayerDecalFile(j, sTemp2, sizeof(sTemp2));
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Format(sTemp2, sizeof(sTemp2), "%s.dat", sTemp2);
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if (StrEqual(sTemp2, g_sFilename[24], false))
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{
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char auth[20];
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GetClientAuthId(j, AuthId_Steam2, auth, sizeof(auth));
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//KickClient(j, "Please change your spray"); //if you have no spray you get flagged too by mistake. so better to remove kicking.
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LogAction(j, -1, "\"%L\" is possibly using a bad spray. Client got kicked and spray got deleted.", j);
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LogCustom("Deleted invalid spray: %s from (%N) [%s]", sTemp2, j, auth);
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}
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}
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}
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DHookSetReturn(hReturn, 0);
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return MRES_Supercede;
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}
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}
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}
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return MRES_Ignored;
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}
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public MRESReturn FileReceivedPost(int pThis, Handle hReturn, Handle hParams)
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{
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/*int client;
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if( FileExists(g_sFilename) )
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{
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int len = strlen(g_sFilename);
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if( len > 4 && strcmp(g_sFilename[len - 4], ".dat") == 0 )
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{
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int iRead[sizeof(g_iVal)];
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File hFile = OpenFile(g_sFilename, "rb", false);
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hFile.Read(iRead, sizeof(iRead), 1);
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delete hFile;
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int i = ValFile(iRead);
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if( i != -1 )
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{
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if( !client && g_iOff != -1 )
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{
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client = LoadFromAddress(view_as<Address>(pThis + g_iOff), NumberType_Int8);
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if( client < 1 || client > MaxClients || !IsClientInGame(client) ) client = 0;
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}
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if( client )
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{
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char auth[20];
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GetClientAuthId(client, AuthId_Steam2, auth, sizeof(auth));
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LogCustom("Deleted invalid spray: %s from (%N) [%s]", g_sFilename, client, auth);
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PrintToServer("Invalid file: %s: %02d (%02X <> %02X) from (%N) [%s]", g_sFilename, i, iRead[i], g_iVal[i], client, auth);
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} else {
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LogCustom("Deleted invalid spray: %s", g_sFilename);
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PrintToServer("Invalid file: %s: %02d (%02X <> %02X)", g_sFilename, i, iRead[i], g_iVal[i]);
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}
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DeleteFile(g_sFilename);
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for (int j = 1; j <= MaxClients; j++)
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{
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if (IsValidClient(j))
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{
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char sTemp[PLATFORM_MAX_PATH - 4];
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GetPlayerDecalFile(j, sTemp, sizeof(sTemp));
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Format(sTemp, sizeof(sTemp), "%s.dat", sTemp);
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if (StrEqual(sTemp, g_sFilename[24], false))
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{
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char auth[20];
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GetClientAuthId(j, AuthId_Steam2, auth, sizeof(auth));
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KickClient(j, "Please change your spray ");
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LogAction(j, -1, "\"%L\" is possibly using a bad spray. Client got kicked and spray got deleted.", j);
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LogCustom("Deleted invalid spray: %s from (%N) [%s]", sTemp, j, auth);
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}
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}
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}
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DHookSetReturn(hReturn, 0);
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return MRES_Supercede;
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}
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}
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}
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return MRES_Ignored;*/
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}
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int ValFile(int iRead[sizeof(g_iVal)])
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{
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char bytes[10];
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bool read = true;
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int n;
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for( int i = 0; i < sizeof(g_iVal); i++ )
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{
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if( i == 0 && g_iEngine == Engine_TF2 && iRead[i] == 82 && iRead[i+1] == 73 && iRead[i+2] == 70 && iRead[i+3] == 70 && iRead[i+8] == 87 && iRead[i+9] == 65 && iRead[i+10] == 86 && iRead[i+11] == 69 && iRead[i+12] == 102 && iRead[i+13] == 109 && iRead[i+14] == 116 )
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{
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break;
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}
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else if( g_iVal[i] == 42 )
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{
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switch( i )
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{
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case 8: read = iRead[i] <= 5;
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case 16, 18:
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{
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Format(bytes, sizeof(bytes), "%02X%02X", iRead[i+1], iRead[i]);
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n = HtD(bytes);
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if( n < 0 || n > 8192 ) read = false;
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}
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case 20:
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{
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Format(bytes, sizeof(bytes), "%02X%02X%02X%02X", iRead[i+3], iRead[i+2], iRead[i+1], iRead[i]);
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n = HtD(bytes);
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if( n & (0x8000|0x10000|0x800000) ) read = false;
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}
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}
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} else {
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read = iRead[i] == g_iVal[i];
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}
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if( !read ) return i;
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}
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return -1;
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}
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int HtD(char[] bytes)
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{
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int len = strlen(bytes);
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int base = 1;
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int value = 0;
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for( int i = len - 1; i >= 0; i-- )
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{
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if( bytes[i] >= '0' && bytes[i] <= '9' )
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{
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value += (bytes[i] - 48) * base;
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base = base * 16;
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}
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else if( bytes[i] >= 'A' && bytes[i] <= 'F' )
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{
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value += (bytes[i] - 55) * base;
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base = base * 16;
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}
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}
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return value;
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}
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void LogCustom(const char[] format, any ...)
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{
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char buffer[512];
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VFormat(buffer, sizeof(buffer), format, 2);
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char FileName[PLATFORM_MAX_PATH], sTime[32];
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BuildPath(Path_SM, FileName, sizeof(FileName), "logs/spray_detector.log");
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File file = OpenFile(FileName, "a+");
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FormatTime(sTime, sizeof(sTime), "%d-%b-%Y - %H:%M:%S");
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file.WriteLine("%s: %s", sTime, buffer);
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FlushFile(file);
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delete file;
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}
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//----------------------------------------------------------------------------------------------------
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// Purpose:
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//----------------------------------------------------------------------------------------------------
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stock int IsValidClient(int client, bool nobots = true)
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{
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if (client <= 0 || client > MaxClients || !IsClientConnected(client) || (nobots && IsFakeClient(client)))
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return false;
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return IsClientInGame(client);
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}
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