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 && isBot(cuser))) {
 128                     if(uaccess < db_canop) {
 129                         reply(textclient, user, "NS_MODE_ENFOPS", chan->name);
 130                         db_canop = -1;
 131                         if(uaccess < db_getop)
 132                             deop_user = 1;
 133                     }
 134                     if(db_canop == -1 && caccess < db_getop) {
 135                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 136                             modeBufferSet(modeBuf, !add, modes[i], carg);
 137                         break;
 138                     }
 139                 } else if(modes[i] == 'v') {
 140                     if(uaccess < db_canvoice) {
 141                         reply(textclient, user, "NS_MODE_ENFVOICE", chan->name);
 142                         db_canvoice = -1;
 143                         if(uaccess < db_getop)
 144                             deop_user = 1;
 145                     }
 146                     if(db_canvoice == -1 && caccess < db_getvoice) {
 147                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 148                             modeBufferSet(modeBuf, !add, modes[i], carg);
 149                         break;
 150                     }
 151                 }
 152                 if(!add) {
 153                     //check protection
 154                     if(isBot(cuser)) {
 155                         //don't send this - just try to reop
 156                         //reply(textclient, user, "NS_SERVICE_IMMUNE", cuser->nick);
 157                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 158                             modeBufferSet(modeBuf, !add, modes[i], carg);
 159                         break;
 160                     }
 161                     if(isUserProtected(chan, cuser, user)) {
 162                         reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 163                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 164                             modeBufferSet(modeBuf, !add, modes[i], carg);
 165                         if(uaccess < db_getop)
 166                             deop_user = 1;
 167                         break;
 168                     }
 169                 }
 170                 break;
 171             case 'b':
 172                 if(arg == argc) {
 173                     break;
 174                 }
 175                 carg = argv[arg++];
 176                 if(uaccess < db_canban) {
 177                     reply(textclient, user, "NS_MODE_CANBAN", chan->name);
 178                     db_canban = -1;
 179                 }
 180                 if(db_canban == -1) {
 181                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 182                         modeBufferSet(modeBuf, !add, modes[i], carg);
 183                     if(uaccess < db_getop)
 184                         deop_user = 1;
 185                     break;
 186                 }
 187                 char hostmask_buffer[NICKLEN+USERLEN+HOSTLEN+3];
 188                 char usermask[NICKLEN+USERLEN+HOSTLEN+3];
 189                 int match_count = 0;
 190                 carg = make_banmask(carg, hostmask_buffer);
 191                 if(add) {
 192                     for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = getChannelUsers(chan, chanuser)) {
 193                         cuser = chanuser->user;
 194                         sprintf(usermask, "%s!%s@%s", cuser->nick, cuser->ident, cuser->host);
 195                         if(!match(carg, usermask)) {
 196                             if(isUserProtected(chan, cuser, user)) {
 197                                 reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 198                                 skip = 1;
 199                                 break;
 200                             }
 201                             match_count++;
 202                         }
 203                     }
 204                     if(match_count > 4 && (match_count * 3) > chan->usercount) {
 205                         reply(textclient, user, "NS_LAME_MASK_WARNING", carg, match_count);
 206                     }
 207                 }
 208                 if(skip) {
 209                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 210                         modeBufferSet(modeBuf, !add, modes[i], carg);
 211                     if(uaccess < db_getop)
 212                         deop_user = 1;
 213                 }
 214                 break;
 215             default:
 216                 modetype = getModeType(modelock, modes[i]);
 217                 if(modetype == 0) {
 218                     break; //unknown mode
 219                 }
 220
 221                 if(add && (modetype & CHANNEL_MODE_TYPE) != CHANNEL_MODE_TYPE_D) {
 222                     if(arg == argc) {
 223                         break;
 224                     }
 225                     carg = argv[arg++];
 226                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 227                         char *modelock_val = getModeValue(modelock, modes[i]);
 228                         if(stricmp(carg, modelock_val) && uaccess < db_enfmodes && !isGodMode(user)) {
 229                             if(!sent_modes_locked) {
 230                                 getFullModeString(modelock, tmp);
 231                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 232                                 sent_modes_locked = 1;
 233                                 if(uaccess < db_getop)
 234                                     deop_user = 1;
 235                             }
 236                             if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 237                                 modeBufferSet(modeBuf, add, modes[i], modelock_val);
 238                             break;
 239                         }
 240                     }
 241                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 242                         int *modelock_val = getModeValue(modelock, modes[i]);
 243                         if(atoi(carg) != *modelock_val && uaccess < db_enfmodes && !isGodMode(user)) {
 244                             if(!sent_modes_locked) {
 245                                 getFullModeString(modelock, tmp);
 246                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 247                                 sent_modes_locked = 1;
 248                                 if(uaccess < db_getop)
 249                                     deop_user = 1;
 250                             }
 251                             sprintf(tmp, "%d", *modelock_val);
 252                             if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 253                                 modeBufferSet(modeBuf, add, modes[i], tmp);
 254                             break;
 255                         }
 256                     }
 257                 } else if(!add && (modetype & CHANNEL_MODE_TYPE) == CHANNEL_MODE_TYPE_B) {
 258                     if(arg == argc) {
 259                         break;
 260                     }
 261                     carg = argv[arg++];
 262                 } else
 263                     carg = NULL;
 264                 if(isModeAffected(modelock, modes[i]) && add == !isModeSet(modelock, modes[i]) && uaccess < db_enfmodes && !isGodMode(user)) {
 265                     if(!sent_modes_locked) {
 266                         getFullModeString(modelock, tmp);
 267                         reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 268                         sent_modes_locked = 1;
 269                         if(uaccess < db_getop)
 270                             deop_user = 1;
 271                     }
 272                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 273                         modeBufferSet(modeBuf, !add, modes[i], carg);
 274                     break;
 275                 }
 276                 break;
 277         }
 278     }
 279     if(deop_user && !neonserv_cmd_mode_botwar_detect(client, user, chan)) {
 280         modeBufferDeop(modeBuf, user->nick);
 281     }
 282     freeModeBuffer(modeBuf);
 283     freeModeNode(modelock);
 284 }
 285
 286 static int neonserv_cmd_mode_botwar_detect(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan) {
 287     struct ChanUser *chanuser = getChanUser(user, chan);
 288     if(!chanuser) return 0; //flying super cow?
 289     if(time(0) - chanuser->changeTime > BOTWAR_DETECTION_TIME) {
 290         chanuser->changeTime = time(0);
 291         chanuser->chageEvents = 1;
 292     } else {
 293         if(!botwar_detect_executed)
 294             chanuser->chageEvents++;
 295         botwar_detect_executed = 1;
 296         if(chanuser->chageEvents >= BOTWAR_DETECTION_EVENTS || chanuser->chageEvents < 0) {
 297             //BOTWAR!
 298             chanuser->changeTime = time(0);
 299             if(chanuser->chageEvents > 0) {
 300                 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") : ""));
 301                 if(BOTWAR_ALERT_CHAN) {
 302                     struct ChanNode *alertchan = getChanByName(BOTWAR_ALERT_CHAN);
 303                     struct ClientSocket *alertclient;
 304                     if(alertchan && (alertclient = getBotForChannel(chan)) != NULL) {
 305                         char msgBuf[MAXLEN];
 306                         putsock(alertclient, "PRIVMSG %s :%s", alertchan->name, build_language_string(NULL, msgBuf, "NS_BOTWAR_ALERT", chan->name, user->nick));
 307                     }
 308                 }
 309             }
 310             chanuser->chageEvents = -2;
 311             return 1;
 312         }
 313     }
 314     return 0;
 315 }
 316