Quote:
Originally Posted by Chipardeur
Show us the code of antiddos.
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//Anti DDoS Attack Filterscript by Jankingston. Feel free to modify
#include <a_samp>
#include <FileFunctions>
#define ATTACK_TYPE_PLAYERID 1
#define ATTACK_TYPE_IP 2
new File:ServerLogFile;
new addostimer;
main()
{
print("|----------------------------------|");
print("| Anti DDOS filterscript v0.1 |");
print("|----------------------------------|");
}
public OnFilterScriptInit()
{
ServerLogFile = fileOpen("server_log.txt", io_Read);
addostimer = SetTimer("Anti-DDoS", 100, true);
return 1;
}
public OnFilterScriptExit()
{
KillTimer(addostimer);
return 1;
}
forward AntiDDoS();
public AntiDDoS()
{
if(!ServerLogFile)
{
print("Error opening server_log.txt!");
KillTimer(addostimer);
}
else
{
new string[128];
new strarr[2][20];
fileSeek(ServerLogFile, -128, seek_End);
while(fileRead(ServerLogFile, string)){}
new pos = strfind(string, "Invalid client connecting from ", true, 10);
if(pos == 11)
{
OnDDosAttackAttempt(ATTACK_TYPE_IP, INVALID_PLAYER_ID, string[pos+31]);
}
pos = strfind(string, "Warning: /rcon command exploit from: ", true, 10);
if(pos == 11){
split(string[pos+37], strarr, ':');
OnDDosAttackAttempt(ATTACK_TYPE_PLAYERID, strval(strarr[0]), strarr[1]);
}
pos = strfind(string, "Warning: PlayerDialogResponse PlayerId: ", true, 10);
if(pos == 11){
new idx = 0;
new plid = strval(strtok(string[pos+39], idx));
SetPVarInt(plid, "dialogDDosAtt", GetPVarInt(plid, "dialogDDosAtt")+1);
print("");
if(GetPVarInt(plid, "dialogDDosAtt") > 2)OnDDosAttackAttempt(ATTACK_TYPE_PLAYERID, plid, " ");
}
pos = strfind(string, "Warning: PlayerDialogResponse crash exploit from PlayerId: ", true, 10);
if(pos == 11){
new idx = 0;
OnDDosAttackAttempt(ATTACK_TYPE_PLAYERID, strval(strtok(string[pos+59], idx)), " ");
}
pos = strfind(string, "Packet was modified, sent by id: ", true, 10);
if(pos == 11){
split(string[pos+33], strarr, ',');
OnDDosAttackAttempt(ATTACK_TYPE_PLAYERID, strval(strarr[0]), " ");
}
pos = strfind(string, "Remote Port Refused for Player: ", true, 10);
if(pos == 11){
new idx = 0;
OnDDosAttackAttempt(ATTACK_TYPE_PLAYERID, strval(strtok(string[pos+32], idx)), " ");
}
if(strfind(string, " due to a 'server full' attack") != -1)
{
pos = strfind(string, "Blocking ", true, 10);
if(pos == 12)
{
new idx = 0;
OnDDosAttackAttempt(ATTACK_TYPE_IP, INVALID_PLAYER_ID, strtok(string[pos+9], idx));
}
}
}
}
forward OnDDosAttackAttempt(type, playerid, ip[]);
public OnDDosAttackAttempt(type, playerid, ip[])
{
new string[128];
if(type == ATTACK_TYPE_PLAYERID)
{//block a playerid
BanEx(playerid, "DDOS protect");
printf("Blocked attack from playerid %d", playerid);
}else if(type == ATTACK_TYPE_IP)
{//block an ip address
format(string, sizeof(string), "banip %s", ip);
SendRconCommand(string);
printf("Blocked attack from ip: %s", ip);
}
}
stock strtok(const string[], &index)
{
new length = strlen(string);
while ((index < length) && (string[index] <= ' '))
{
index++;
}
new offset = index;
new result[20];
while ((index < length) && (string[index] > ' ') && ((index - offset) < (sizeof(result) - 1)))
{
result[index - offset] = string[index];
index++;
}
result[index - offset] = EOS;
return result;
}
stock split(const strsrc[], strdest[][], delimiter)
{
new i, li;
new aNum;
new len;
while(i <= strlen(strsrc)){
if(strsrc[i]==delimiter || i==strlen(strsrc)){
len = strmid(strdest[aNum], strsrc, li, i, 12;
strdest[aNum][len] = 0;
li = i+1;
aNum++;
}
i++;
}
return 1;
}
