src/event_neonserv_mode.c

   1 /* event_neonserv_mode.c - NeonServ v5.3
   2  * Copyright (C) 2011-2012  Philipp Kreil (pk910)
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 static USERLIST_CALLBACK(neonserv_event_mode_userlist_lookup);
  19 static void neonserv_event_mode_async1(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan, char *modes, char **argv, int argc);
  20 static int neonserv_cmd_mode_botwar_detect(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan);
  21
  22 static int botwar_detect_executed;
  23
  24 struct neonserv_event_mode_cache {
  25     struct ClientSocket *client;
  26     struct UserNode *user;
  27     char *modes;
  28     char **argv;
  29     int argc;
  30 };
  31
  32 static void neonserv_event_mode(struct UserNode *user, struct ChanNode *chan, char *modes, char **argv, int argc) {
  33     struct ClientSocket *client = getBotForChannel(chan);
  34     if(!client) return; //we can't "see" this event
  35     if(isNetworkService(user)) return;
  36     loadChannelSettings(chan);
  37     if(!(chan->flags & CHANFLAG_CHAN_REGISTERED)) return;
  38     struct neonserv_event_mode_cache *cache = malloc(sizeof(*cache));
  39     char **temp_argv = NULL;
  40     if(argc)
  41         temp_argv = malloc(argc*sizeof(*temp_argv));
  42     if (!cache || (argc && !temp_argv)) {
  43         perror("malloc() failed");
  44         return;
  45     }
  46     if(argc) {
  47         int i;
  48         for(i = 0; i < argc; i++) {
  49             temp_argv[i] = strdup(argv[i]);
  50         }
  51     }
  52     cache->client = client;
  53     cache->user = user;
  54     cache->modes = strdup(modes);
  55     cache->argv = temp_argv;
  56     cache->argc = argc;
  57     get_userlist_with_invisible(chan, neonserv_event_mode_userlist_lookup, cache);
  58 }
  59
  60 static USERLIST_CALLBACK(neonserv_event_mode_userlist_lookup) {
  61     struct neonserv_event_mode_cache *cache = data;
  62     neonserv_event_mode_async1(cache->client, cache->user, chan, cache->modes, cache->argv, cache->argc);
  63     if(cache->argc) {
  64         int i;
  65         for(i = 0; i < cache->argc; i++) {
  66             free(cache->argv[i]);
  67         }
  68         free(cache->argv);
  69     }
  70     free(cache);
  71 }
  72
  73 static void neonserv_event_mode_async1(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan, char *modes, char **argv, int argc) {
  74     struct ClientSocket *textclient = ((client->flags & SOCKET_FLAG_PREFERRED) ? client : get_prefered_bot(client->botid));
  75     botwar_detect_executed = 0;
  76     MYSQL_ROW row, defaults = NULL;
  77     int i, arg, add = 1, skip = 0;
  78     unsigned int modetype;
  79     int db_canop, db_canvoice, db_canban, db_enfmodes, db_getop, db_getvoice;
  80     struct ModeNode *modelock = createModeNode(NULL);
  81     struct ModeBuffer *modeBuf;
  82     struct UserNode *cuser;
  83     struct ChanUser *chanuser;
  84     modeBuf = initModeBuffer(client, chan);
  85     printf_mysql_query("SELECT `channel_canop`, `channel_canvoice`, `channel_canban`, `channel_enfmodes`, `channel_modes`, `channel_getop`, `channel_getvoice` FROM `channels` WHERE `channel_id` = '%d'", chan->channel_id);
  86     row = mysql_fetch_row(mysql_use());
  87     if(row[0] == NULL || row[1] == NULL || row[2] == NULL || row[3] == NULL || row[4] == NULL || row[5] == NULL || row[6] == NULL) {
  88         printf_mysql_query("SELECT `channel_canop`, `channel_canvoice`, `channel_canban`, `channel_enfmodes`, `channel_modes`, `channel_getop`, `channel_getvoice` FROM `channels` WHERE `channel_name` = 'defaults'");
  89         defaults = mysql_fetch_row(mysql_use());
  90     }
  91     db_canop = atoi((row[0] ? row[0] : defaults[0]));
  92     db_canvoice = atoi((row[1] ? row[1] : defaults[1]));
  93     db_canban = atoi((row[2] ? row[2] : defaults[2]));
  94     db_enfmodes = atoi((row[3] ? row[3] : defaults[3]));
  95     db_getop = atoi((row[5] ? row[5] : defaults[5]));
  96     db_getvoice = atoi((row[6] ? row[6] : defaults[6]));
  97     if(row[4])
  98         parseModeString(modelock, row[4]);
  99     else if(defaults[4])
 100         parseModeString(modelock, defaults[4]);
 101     int uaccess = getChannelAccess(user, chan);
 102     int caccess;
 103     char *carg;
 104     int sent_modes_locked = 0;
 105     char deop_user = 0;
 106     char tmp[MAXLEN];
 107     arg = 0;
 108     for(i = 0; i < strlen(modes); i++) {
 109         switch(modes[i]) {
 110             case '+':
 111                 add = 1;
 112                 break;
 113             case '-':
 114                 add = 0;
 115                 break;
 116             case 'o':
 117             case 'v':
 118                 if(arg == argc) {
 119                     break;
 120                 }
 121                 carg = argv[arg++];
 122                 cuser = searchUserByNick(carg);
 123                 if(!cuser) {
 124                     break; //internal Bot error - this should never happen
 125                 }
 126                 caccess = getChannelAccess(cuser, chan);
 127                 if(modes[i] == 'o' && !add && cuser == client->user) {
 128                     //someone deopped the bot???
 129                     requestOp(client->user, chan);
 130                 }
 131                 if(modes[i] == 'o' && !(add && isBot(cuser))) {
 132                     if(uaccess < db_canop) {
 133                         reply(textclient, user, "NS_MODE_ENFOPS", chan->name);
 134                         db_canop = -1;
 135                         if(uaccess < db_getop)
 136                             deop_user = 1;
 137                     }
 138                     if(db_canop == -1 && caccess < db_getop) {
 139                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 140                             modeBufferSet(modeBuf, !add, modes[i], carg);
 141                         break;
 142                     }
 143                 } else if(modes[i] == 'v') {
 144                     if(uaccess < db_canvoice) {
 145                         reply(textclient, user, "NS_MODE_ENFVOICE", chan->name);
 146                         db_canvoice = -1;
 147                         if(uaccess < db_getop)
 148                             deop_user = 1;
 149                     }
 150                     if(db_canvoice == -1 && caccess < db_getvoice) {
 151                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 152                             modeBufferSet(modeBuf, !add, modes[i], carg);
 153                         break;
 154                     }
 155                 }
 156                 if(!add) {
 157                     //check protection
 158                     if(isBot(cuser)) {
 159                         //don't send this - just try to reop
 160                         //reply(textclient, user, "NS_SERVICE_IMMUNE", cuser->nick);
 161                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 162                             modeBufferSet(modeBuf, !add, modes[i], carg);
 163                         break;
 164                     }
 165                     if(isUserProtected(chan, cuser, user)) {
 166                         reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 167                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 168                             modeBufferSet(modeBuf, !add, modes[i], carg);
 169                         if(uaccess < db_getop)
 170                             deop_user = 1;
 171                         break;
 172                     }
 173                 }
 174                 break;
 175             case 'b':
 176                 if(arg == argc) {
 177                     break;
 178                 }
 179                 carg = argv[arg++];
 180                 if(uaccess < db_canban) {
 181                     reply(textclient, user, "NS_MODE_CANBAN", chan->name);
 182                     db_canban = -1;
 183                 }
 184                 if(db_canban == -1) {
 185                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 186                         modeBufferSet(modeBuf, !add, modes[i], carg);
 187                     if(uaccess < db_getop)
 188                         deop_user = 1;
 189                     break;
 190                 }
 191                 char hostmask_buffer[NICKLEN+USERLEN+HOSTLEN+3];
 192                 char usermask[NICKLEN+USERLEN+HOSTLEN+3];
 193                 int match_count = 0;
 194                 carg = make_banmask(carg, hostmask_buffer);
 195                 if(add) {
 196                     for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = getChannelUsers(chan, chanuser)) {
 197                         cuser = chanuser->user;
 198                         sprintf(usermask, "%s!%s@%s", cuser->nick, cuser->ident, cuser->host);
 199                         if(!match(carg, usermask)) {
 200                             if(isUserProtected(chan, cuser, user)) {
 201                                 reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 202                                 skip = 1;
 203                                 break;
 204                             }
 205                             match_count++;
 206                         }
 207                     }
 208                     if(match_count > 4 && (match_count * 3) > chan->usercount) {
 209                         reply(textclient, user, "NS_LAME_MASK_WARNING", carg, match_count);
 210                     }
 211                 }
 212                 if(skip) {
 213                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 214                         modeBufferSet(modeBuf, !add, modes[i], carg);
 215                     if(uaccess < db_getop)
 216                         deop_user = 1;
 217                 }
 218                 break;
 219             default:
 220                 modetype = getModeType(modelock, modes[i]);
 221                 if(modetype == 0) {
 222                     break; //unknown mode
 223                 }
 224
 225                 if(add && (modetype & CHANNEL_MODE_TYPE) != CHANNEL_MODE_TYPE_D) {
 226                     if(arg == argc) {
 227                         break;
 228                     }
 229                     carg = argv[arg++];
 230                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 231                         char *modelock_val = getModeValue(modelock, modes[i]);
 232                         if(stricmp(carg, modelock_val) && uaccess < db_enfmodes && !isGodMode(user)) {
 233                             if(!sent_modes_locked) {
 234                                 getFullModeString(modelock, tmp);
 235                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 236                                 sent_modes_locked = 1;
 237                                 if(uaccess < db_getop)
 238                                     deop_user = 1;
 239                             }
 240                             if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 241                                 modeBufferSet(modeBuf, add, modes[i], modelock_val);
 242                             break;
 243                         }
 244                     }
 245                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 246                         int *modelock_val = getModeValue(modelock, modes[i]);
 247                         if(atoi(carg) != *modelock_val && uaccess < db_enfmodes && !isGodMode(user)) {
 248                             if(!sent_modes_locked) {
 249                                 getFullModeString(modelock, tmp);
 250                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 251                                 sent_modes_locked = 1;
 252                                 if(uaccess < db_getop)
 253                                     deop_user = 1;
 254                             }
 255                             sprintf(tmp, "%d", *modelock_val);
 256                             if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 257                                 modeBufferSet(modeBuf, add, modes[i], tmp);
 258                             break;
 259                         }
 260                     }
 261                 } else if(!add && (modetype & CHANNEL_MODE_TYPE) == CHANNEL_MODE_TYPE_B) {
 262                     if(arg == argc) {
 263                         break;
 264                     }
 265                     carg = argv[arg++];
 266                 } else
 267                     carg = NULL;
 268                 if(isModeAffected(modelock, modes[i]) && add == !isModeSet(modelock, modes[i]) && uaccess < db_enfmodes && !isGodMode(user)) {
 269                     if(!sent_modes_locked) {
 270                         getFullModeString(modelock, tmp);
 271                         reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 272                         sent_modes_locked = 1;
 273                         if(uaccess < db_getop)
 274                             deop_user = 1;
 275                     }
 276                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 277                         modeBufferSet(modeBuf, !add, modes[i], carg);
 278                     break;
 279                 }
 280                 break;
 281         }
 282     }
 283     if(deop_user && !neonserv_cmd_mode_botwar_detect(client, user, chan)) {
 284         modeBufferDeop(modeBuf, user->nick);
 285     }
 286     freeModeBuffer(modeBuf);
 287     freeModeNode(modelock);
 288 }
 289
 290 static int neonserv_cmd_mode_botwar_detect(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan) {
 291     struct ChanUser *chanuser = getChanUser(user, chan);
 292     if(!chanuser) return 0; //flying super cow?
 293     if(time(0) - chanuser->changeTime > BOTWAR_DETECTION_TIME) {
 294         chanuser->changeTime = time(0);
 295         chanuser->chageEvents = 1;
 296     } else {
 297         if(!botwar_detect_executed)
 298             chanuser->chageEvents++;
 299         botwar_detect_executed = 1;
 300         if(chanuser->chageEvents >= BOTWAR_DETECTION_EVENTS || chanuser->chageEvents < 0) {
 301             //BOTWAR!
 302             chanuser->changeTime = time(0);
 303             if(chanuser->chageEvents > 0) {
 304                 putsock(client, "NOTICE @%s :%s %s", chan->name, get_language_string(user, "NS_BOTWAR_DETECTED"), (BOTWAR_ALERT_CHAN ? get_language_string(user, "NS_BOTWAR_REPORTED") : ""));
 305                 if(BOTWAR_ALERT_CHAN) {
 306                     struct ChanNode *alertchan = getChanByName(BOTWAR_ALERT_CHAN);
 307                     struct ClientSocket *alertclient;
 308                     if(alertchan && (alertclient = getBotForChannel(chan)) != NULL) {
 309                         char msgBuf[MAXLEN];
 310                         putsock(alertclient, "PRIVMSG %s :%s", alertchan->name, build_language_string(NULL, msgBuf, "NS_BOTWAR_ALERT", chan->name, user->nick));
 311                     }
 312                 }
 313             }
 314             chanuser->chageEvents = -2;
 315             return 1;
 316         }
 317     }
 318     return 0;
 319 }
 320