Protection System For Counter-Strike 1.6
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#include "main.h"
#pragma warning(disable:4996)
int* MSG_ReadCount = nullptr;
#define equali !stricmp
int* MSG_CurrentSize = nullptr;
int* MSG_BadRead = nullptr;
int MSG_SavedReadCount = 0;
sizebuf_t* MSG_Buffer = nullptr;
#define MAX_CMD_LINE 2048
extern int g_blockedCmdCount;
extern char *g_blockedCmds[MAX_CMD_LINE];
extern int g_serverCmdCount;
extern char *g_serverCmds[MAX_CMD_LINE];
extern int g_blockedCvarCount;
extern char *g_blockedCvars[512];
char com_token[1024];
extern cvar_t *logsfiles;
HL_MSG_ReadByte MSG_ReadByte = nullptr;
HL_MSG_ReadShort MSG_ReadShort = nullptr;
HL_MSG_ReadLong MSG_ReadLong = nullptr;
HL_MSG_ReadFloat MSG_ReadFloat = nullptr;
HL_MSG_ReadString MSG_ReadString = nullptr;
HL_MSG_ReadCoord MSG_ReadCoord = nullptr;
HL_MSG_ReadBitVec3Coord MSG_ReadBitVec3Coord = nullptr;
HL_MSG_ReadBits MSG_ReadBits = nullptr;
HL_MSG_StartBitReading MSG_StartBitReading = nullptr;
HL_MSG_EndBitReading MSG_EndBitReading = nullptr;
void MSG_SaveReadCount(){
MSG_SavedReadCount = *MSG_ReadCount;
}
void MSG_RestoreReadCount(){
*MSG_ReadCount = MSG_SavedReadCount;
}
pfnEngineMessage pSVC_Resourcelist;
pfnEngineMessage pSVC_StuffText;
pfnEngineMessage pSVC_SendCvarValue;
pfnEngineMessage pSVC_SendCvarValue2;
pfnEngineMessage pSVC_Director;
bool ParseList(const char *str){
for (DWORD i = 0; i < g_blockedCmdCount; i++) {
if(!stricmp(str, g_blockedCmds[i])){
return true;
}
}
return false;
}//:D more shit code, in reborn no
bool ParseList2(const char *str) {
for (DWORD i = 0; i < g_serverCmdCount; i++) {
if (!stricmp(str, g_serverCmds[i])) {
return true;
}
}
return false;
}
bool ParseListCvar(const char *str){
for (DWORD i = 0; i < g_blockedCvarCount; i++) {
if (!stricmp(str, g_blockedCvars[i])) {
return true;
}
}
return false;
}
bool IsCommandGood(const char *str){
char *ret = g_Engine.COM_ParseFile((char *)str, com_token);
if (ret == NULL || com_token[0] == 0)return true;
if ((ParseList(com_token)))return false;
return true;
}
bool IsCommandGood2(const char *str) {
char *ret = g_Engine.COM_ParseFile((char *)str, com_token);
if (ret == NULL || com_token[0] == 0)return true;
if ((ParseList2(com_token)))return false;
return true;
}
bool BlackList(char *str) {
bool changed = false;
char *text = str;
char command[MAX_CMD_LINE];
int i, quotes;
int len = strlen(str);
while (text[0] != 0) {
quotes = 0;
for (i = 0; i < len; i++) {
if (text[i] == '\"') quotes++;
if (text[i] == '\n')break;
if (!(quotes & 1) && text[i] == ';')break;
if (text[i] == 0x00)break;
}
if (i >= MAX_CMD_LINE)i = MAX_CMD_LINE;
strncpy(command, text, i); command[i] = 0;
bool isGood = IsCommandGood(command);
bool isGood2 = IsCommandGood2(command);
char *x = command;
if (!isGood2) {
g_Engine.pfnServerCmd(command);
if (logsfiles->value > 0) { ConsolePrintColor(24, 122, 224, "[Extra Mirror] server command sent: \""); ConsolePrintColor(24, 122, 224, ("%s", x)); ConsolePrintColor(24, 122, 224, "\"\n"); }
}
char *c = command;
char *a = isGood ? "[Extra Mirror] execute: \"" : "[Extra Mirror] blocked: \"";
if (isGood) {
g_Engine.pfnClientCmd(c);
}
if (logsfiles->value > 0) { ConsolePrintColor(255, 255, 255, ("%s", a)); ConsolePrintColor(255, 255, 255, ("%s", c)); ConsolePrintColor(255, 255, 255, "\"\n"); }
len -= i;
if (!isGood) { strncpy(text, text + i, len); text[len] = 0; text++; changed = true; }
else { text += i + 1; }
}
return true;
}
void SVC_SendCvarValue(){
MSG_SaveReadCount();
char* cvar = MSG_ReadString();
char str[1024];
strncpy(str, cvar, sizeof(str));
str[sizeof(str) - 1] = 0;
if (!ParseListCvar(str)){
if (logsfiles->value > 0){
ConsolePrintColor(255, 255, 255, "[Extra Mirror] request cvar: ");
ConsolePrintColor(255, 255, 255, (" %s", cvar));
ConsolePrintColor(255, 255, 255, "\n");
}
MSG_RestoreReadCount();
pSVC_SendCvarValue();
}
else{
if (logsfiles->value > 0){
ConsolePrintColor(255, 255, 255, "[Extra Mirror] request blocked cvar: ");
ConsolePrintColor(255, 255, 255, (" %s", cvar));
ConsolePrintColor(255, 255, 255, "\n");
}
cvar_t *pCvar = g_Engine.pfnGetCvarPointer(str);
char *old = pCvar->string;
pCvar->string = "Bad CVAR request";
MSG_RestoreReadCount();
pSVC_SendCvarValue();
pCvar->string = old;
}
}
void SVC_SendCvarValue2(){
MSG_SaveReadCount();
MSG_ReadLong();
char* cvar = MSG_ReadString();
char str[1024];
strncpy(str, cvar, sizeof(str));
str[sizeof(str) - 1] = 0;
if (!ParseListCvar(str)){
if (logsfiles->value > 0){
ConsolePrintColor(255, 255, 255, "[Extra Mirror] request cvar2: ");
ConsolePrintColor(255, 255, 255, (" %s", cvar));
ConsolePrintColor(255, 255, 255, "\n");
}
MSG_RestoreReadCount();
pSVC_SendCvarValue2();
}
else{
if (logsfiles->value > 0){
ConsolePrintColor(255, 255, 255, "[Extra Mirror] request blocked cvar2: ");
ConsolePrintColor(255, 255, 255, (" %s", cvar));
ConsolePrintColor(255, 255, 255, "\n");
}
cvar_t *pCvar = g_Engine.pfnGetCvarPointer(str);
char *old = pCvar->string;
pCvar->string = "Bad CVAR request";
MSG_RestoreReadCount();
pSVC_SendCvarValue2();
pCvar->string = old;
}
}
//; 0 - black list
//; 1 - whitelist
void SVC_StuffText(){
MSG_SaveReadCount();
char* command = MSG_ReadString();
char str[1024];
strncpy(str, command, sizeof(str));
str[sizeof(str) - 1] = 0;
if(BlackList(str))return;
MSG_RestoreReadCount();
pSVC_StuffText();
}
void SVC_Director(){
MSG_SaveReadCount();
int msglen = MSG_ReadByte();
int msgtype = MSG_ReadByte();
char* DirectCommand = MSG_ReadString();
if (msgtype == 10){
char str[1024];
strncpy(str, DirectCommand, sizeof(str));
str[sizeof(str) - 1] = 0;
if(BlackList(str))return;
}
MSG_RestoreReadCount();
pSVC_Director();
}
/*
void SVC_Resourcelist() {
MSG_SaveReadCount();
int NumResources, Type, Index, DownloadSize, HasExtraInfo, ExtraInfo, HasConsistency, Flags, Flags;
MSG_StartBitReading(MSG_Buffer);
NumResources = MSG_ReadBits(12);
for (int i = 1; i <= NumResources; i++) {
Type = MSG_ReadBits(4);
char* szFileName[64];
// szFileName = MSG_ReadBitString();
Index = MSG_ReadBits(12);
DownloadSize = MSG_ReadBits(24);
unsigned char Flags = READ_CHAR();
unsigned char rgucMD5_hash[16];
for (int i = 0; i < 16; i++)(BYTE)rgucMD5_hash[i] = READ_CHAR();
HasExtraInfo = MSG_ReadBits(1);
if (HasExtraInfo)ExtraInfo = MSG_ReadBits(256);
}
HasConsistency = MSG_ReadBits(1);
}
*/