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| 1 | //Anti DDoS Attack Filterscript by Jankingston. Feel free to modify ;) | |
| 2 | ||
| 3 | #include <a_samp> | |
| 4 | #include <FileFunctions> | |
| 5 | ||
| 6 | #define ATTACK_TYPE_PLAYERID 1 | |
| 7 | #define ATTACK_TYPE_IP 2 | |
| 8 | ||
| 9 | new File:ServerLogFile; | |
| 10 | new addostimer; | |
| 11 | ||
| 12 | main() | |
| 13 | {
| |
| 14 | print("|----------------------------------|");
| |
| 15 | print("| Anti DDOS filterscript v0.1 |");
| |
| 16 | print("|----------------------------------|");
| |
| 17 | } | |
| 18 | ||
| 19 | public OnFilterScriptInit() | |
| 20 | {
| |
| 21 | ServerLogFile = fileOpen("server_log.txt", io_Read);
| |
| 22 | addostimer = SetTimer("Anti-DDoS", 100, true);
| |
| 23 | return 1; | |
| 24 | } | |
| 25 | ||
| 26 | public OnFilterScriptExit() | |
| 27 | {
| |
| 28 | KillTimer(addostimer); | |
| 29 | return 1; | |
| 30 | } | |
| 31 | ||
| 32 | forward AntiDDoS(); | |
| 33 | public AntiDDoS() | |
| 34 | {
| |
| 35 | if(!ServerLogFile) | |
| 36 | {
| |
| 37 | print("Error opening server_log.txt!");
| |
| 38 | KillTimer(addostimer); | |
| 39 | } | |
| 40 | else | |
| 41 | {
| |
| 42 | new string[128]; | |
| 43 | new strarr[2][20]; | |
| 44 | fileSeek(ServerLogFile, -128, seek_End); | |
| 45 | while(fileRead(ServerLogFile, string)){}
| |
| 46 | ||
| 47 | new pos = strfind(string, "Invalid client connecting from ", true, 10); | |
| 48 | if(pos == 11) | |
| 49 | {
| |
| 50 | OnDDosAttackAttempt(ATTACK_TYPE_IP, INVALID_PLAYER_ID, string[pos+31]); | |
| 51 | } | |
| 52 | ||
| 53 | pos = strfind(string, "Warning: /rcon command exploit from: ", true, 10); | |
| 54 | if(pos == 11){
| |
| 55 | split(string[pos+37], strarr, ':'); | |
| 56 | OnDDosAttackAttempt(ATTACK_TYPE_PLAYERID, strval(strarr[0]), strarr[1]); | |
| 57 | } | |
| 58 | ||
| 59 | pos = strfind(string, "Warning: PlayerDialogResponse PlayerId: ", true, 10); | |
| 60 | if(pos == 11){
| |
| 61 | ||
| 62 | new idx = 0; | |
| 63 | new plid = strval(strtok(string[pos+39], idx)); | |
| 64 | SetPVarInt(plid, "dialogDDosAtt", GetPVarInt(plid, "dialogDDosAtt")+1); | |
| 65 | print("");
| |
| 66 | if(GetPVarInt(plid, "dialogDDosAtt") > 2)OnDDosAttackAttempt(ATTACK_TYPE_PLAYERID, plid, " "); | |
| 67 | } | |
| 68 | ||
| 69 | pos = strfind(string, "Warning: PlayerDialogResponse crash exploit from PlayerId: ", true, 10); | |
| 70 | if(pos == 11){
| |
| 71 | new idx = 0; | |
| 72 | OnDDosAttackAttempt(ATTACK_TYPE_PLAYERID, strval(strtok(string[pos+59], idx)), " "); | |
| 73 | } | |
| 74 | ||
| 75 | pos = strfind(string, "Packet was modified, sent by id: ", true, 10); | |
| 76 | if(pos == 11){
| |
| 77 | split(string[pos+33], strarr, ','); | |
| 78 | OnDDosAttackAttempt(ATTACK_TYPE_PLAYERID, strval(strarr[0]), " "); | |
| 79 | } | |
| 80 | ||
| 81 | pos = strfind(string, "Remote Port Refused for Player: ", true, 10); | |
| 82 | if(pos == 11){
| |
| 83 | new idx = 0; | |
| 84 | OnDDosAttackAttempt(ATTACK_TYPE_PLAYERID, strval(strtok(string[pos+32], idx)), " "); | |
| 85 | } | |
| 86 | ||
| 87 | if(strfind(string, " due to a 'server full' attack") != -1) | |
| 88 | {
| |
| 89 | pos = strfind(string, "Blocking ", true, 10); | |
| 90 | if(pos == 12) | |
| 91 | {
| |
| 92 | new idx = 0; | |
| 93 | OnDDosAttackAttempt(ATTACK_TYPE_IP, INVALID_PLAYER_ID, strtok(string[pos+9], idx)); | |
| 94 | } | |
| 95 | } | |
| 96 | } | |
| 97 | } | |
| 98 | ||
| 99 | forward OnDDosAttackAttempt(type, playerid, ip[]); | |
| 100 | public OnDDosAttackAttempt(type, playerid, ip[]) | |
| 101 | {
| |
| 102 | new string[128]; | |
| 103 | if(type == ATTACK_TYPE_PLAYERID) | |
| 104 | {//block a playerid
| |
| 105 | BanEx(playerid, "DDOS protect"); | |
| 106 | printf("Blocked attack from playerid %d", playerid);
| |
| 107 | ||
| 108 | }else if(type == ATTACK_TYPE_IP) | |
| 109 | {//block an ip address
| |
| 110 | format(string, sizeof(string), "banip %s", ip); | |
| 111 | SendRconCommand(string); | |
| 112 | printf("Blocked attack from ip: %s", ip);
| |
| 113 | } | |
| 114 | ||
| 115 | } | |
| 116 | ||
| 117 | stock strtok(const string[], &index) | |
| 118 | {
| |
| 119 | new length = strlen(string); | |
| 120 | while ((index < length) && (string[index] <= ' ')) | |
| 121 | {
| |
| 122 | index++; | |
| 123 | } | |
| 124 | ||
| 125 | new offset = index; | |
| 126 | new result[20]; | |
| 127 | while ((index < length) && (string[index] > ' ') && ((index - offset) < (sizeof(result) - 1))) | |
| 128 | {
| |
| 129 | result[index - offset] = string[index]; | |
| 130 | index++; | |
| 131 | } | |
| 132 | result[index - offset] = EOS; | |
| 133 | return result; | |
| 134 | } | |
| 135 | ||
| 136 | stock split(const strsrc[], strdest[][], delimiter) | |
| 137 | {
| |
| 138 | new i, li; | |
| 139 | new aNum; | |
| 140 | new len; | |
| 141 | while(i <= strlen(strsrc)){
| |
| 142 | if(strsrc[i]==delimiter || i==strlen(strsrc)){
| |
| 143 | len = strmid(strdest[aNum], strsrc, li, i, 128); | |
| 144 | strdest[aNum][len] = 0; | |
| 145 | li = i+1; | |
| 146 | aNum++; | |
| 147 | } | |
| 148 | i++; | |
| 149 | } | |
| 150 | return 1; | |
| 151 | } |
