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_canhalfop, db_canvoice, db_canban, db_enfmodes, db_getop, db_gethalfop, db_getvoice;
  80     struct ModeNode *modelock = createModeNode(NULL);
  81     struct ModeBuffer *modeBuf;
  82     struct UserNode *cuser;
  83     struct ChanUser *chanuser;
  84     int with_halfops = get_int_field("General.have_halfop");
  85     modeBuf = initModeBuffer(client, chan);
  86     printf_mysql_query("SELECT `channel_canop`, `channel_canvoice`, `channel_canban`, `channel_enfmodes`, `channel_modes`, `channel_getop`, `channel_getvoice`, `channel_gethalfop`, `channel_canhalfop` FROM `channels` WHERE `channel_id` = '%d'", chan->channel_id);
  87     row = mysql_fetch_row(mysql_use());
  88     if(row[0] == NULL || row[1] == NULL || row[2] == NULL || row[3] == NULL || row[4] == NULL || row[5] == NULL || row[6] == NULL || (row[7] == NULL && with_halfops) || (row[8] == NULL && with_halfops)) {
  89         printf_mysql_query("SELECT `channel_canop`, `channel_canvoice`, `channel_canban`, `channel_enfmodes`, `channel_modes`, `channel_getop`, `channel_getvoice`, `channel_gethalfop`, `channel_canhalfop` FROM `channels` WHERE `channel_name` = 'defaults'");
  90         defaults = mysql_fetch_row(mysql_use());
  91     }
  92     db_canop = atoi((row[0] ? row[0] : defaults[0]));
  93     db_canvoice = atoi((row[1] ? row[1] : defaults[1]));
  94     db_canban = atoi((row[2] ? row[2] : defaults[2]));
  95     db_enfmodes = atoi((row[3] ? row[3] : defaults[3]));
  96     db_getop = atoi((row[5] ? row[5] : defaults[5]));
  97     db_getvoice = atoi((row[6] ? row[6] : defaults[6]));
  98     db_gethalfop = (with_halfops ? atoi((row[7] ? row[7] : defaults[7])) : 0);
  99     db_canhalfop = (with_halfops ? atoi((row[8] ? row[8] : defaults[8])) : 0);
 100     if(row[4])
 101         parseModeString(modelock, row[4]);
 102     else if(defaults[4])
 103         parseModeString(modelock, defaults[4]);
 104     int uaccess = getChannelAccess(user, chan);
 105     int caccess;
 106     char *carg;
 107     int sent_modes_locked = 0;
 108     char deop_user = 0;
 109     char tmp[MAXLEN];
 110     arg = 0;
 111     for(i = 0; i < strlen(modes); i++) {
 112         switch(modes[i]) {
 113             case '+':
 114                 add = 1;
 115                 break;
 116             case '-':
 117                 add = 0;
 118                 break;
 119             case 'o':
 120             case 'h':
 121             case 'v':
 122                 if(arg == argc) {
 123                     break;
 124                 }
 125                 carg = argv[arg++];
 126                 cuser = searchUserByNick(carg);
 127                 if(!cuser) {
 128                     break; //internal Bot error - this should never happen
 129                 }
 130                 caccess = getChannelAccess(cuser, chan);
 131                 if(modes[i] == 'o' && !add && cuser == client->user) {
 132                     //someone deopped the bot???
 133                     requestOp(client->user, chan);
 134                 }
 135                 if((modes[i] == 'o' || (modes[i] == 'h' && !with_halfops)) && !(add && isBot(cuser))) {
 136                     if(uaccess < db_canop) {
 137                         reply(textclient, user, "NS_MODE_ENFOPS", chan->name);
 138                         db_canop = -1;
 139                         if(uaccess < db_getop)
 140                             deop_user = 1;
 141                     }
 142                     if(db_canop == -1 && caccess < db_getop) {
 143                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 144                             modeBufferSet(modeBuf, !add, modes[i], carg);
 145                         break;
 146                     }
 147                 } else if(modes[i] == 'h' && with_halfops && !(add && isBot(cuser))) {
 148                     if(uaccess < db_canhalfop) {
 149                         reply(textclient, user, "NS_MODE_ENFOPS", chan->name);
 150                         db_canhalfop = -1;
 151                         if(uaccess < db_gethalfop)
 152                             deop_user = 1;
 153                     }
 154                     if(db_canhalfop == -1 && caccess < db_gethalfop) {
 155                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 156                             modeBufferSet(modeBuf, !add, modes[i], carg);
 157                         break;
 158                     }
 159                 } else if(modes[i] == 'v' && !(add && isBot(cuser))) {
 160                     if(uaccess < db_canvoice) {
 161                         reply(textclient, user, "NS_MODE_ENFVOICE", chan->name);
 162                         db_canvoice = -1;
 163                         if(uaccess < db_getop)
 164                             deop_user = 1;
 165                     }
 166                     if(db_canvoice == -1 && caccess < db_getvoice) {
 167                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 168                             modeBufferSet(modeBuf, !add, modes[i], carg);
 169                         break;
 170                     }
 171                 }
 172                 if(!add) {
 173                     //check protection
 174                     if(isBot(cuser)) {
 175                         //don't send this - just try to reop
 176                         //reply(textclient, user, "NS_SERVICE_IMMUNE", cuser->nick);
 177                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 178                             modeBufferSet(modeBuf, !add, modes[i], carg);
 179                         break;
 180                     }
 181                     if(isUserProtected(chan, cuser, user)) {
 182                         reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 183                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 184                             modeBufferSet(modeBuf, !add, modes[i], carg);
 185                         if(uaccess < db_getop)
 186                             deop_user = 1;
 187                         break;
 188                     }
 189                 }
 190                 break;
 191             case 'b':
 192                 if(arg == argc) {
 193                     break;
 194                 }
 195                 carg = argv[arg++];
 196                 if(uaccess < db_canban) {
 197                     reply(textclient, user, "NS_MODE_CANBAN", chan->name);
 198                     db_canban = -1;
 199                 }
 200                 if(db_canban == -1) {
 201                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 202                         modeBufferSet(modeBuf, !add, modes[i], carg);
 203                     if(uaccess < db_getop)
 204                         deop_user = 1;
 205                     break;
 206                 }
 207                 char hostmask_buffer[NICKLEN+USERLEN+HOSTLEN+3];
 208                 char usermask[NICKLEN+USERLEN+HOSTLEN+3];
 209                 int match_count = 0;
 210                 carg = make_banmask(carg, hostmask_buffer);
 211                 if(add) {
 212                     for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = getChannelUsers(chan, chanuser)) {
 213                         cuser = chanuser->user;
 214                         sprintf(usermask, "%s!%s@%s", cuser->nick, cuser->ident, cuser->host);
 215                         if(!match(carg, usermask)) {
 216                             if(isUserProtected(chan, cuser, user)) {
 217                                 reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 218                                 skip = 1;
 219                                 break;
 220                             }
 221                             match_count++;
 222                         }
 223                     }
 224                     if(match_count > 4 && (match_count * 3) > chan->usercount) {
 225                         reply(textclient, user, "NS_LAME_MASK_WARNING", carg, match_count);
 226                     }
 227                 }
 228                 if(skip) {
 229                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 230                         modeBufferSet(modeBuf, !add, modes[i], carg);
 231                     if(uaccess < db_getop)
 232                         deop_user = 1;
 233                 }
 234                 break;
 235             default:
 236                 modetype = getModeType(modelock, modes[i]);
 237                 if(modetype == 0) {
 238                     break; //unknown mode
 239                 }
 240
 241                 if(add && (modetype & CHANNEL_MODE_TYPE) != CHANNEL_MODE_TYPE_D) {
 242                     if(arg == argc) {
 243                         break;
 244                     }
 245                     carg = argv[arg++];
 246                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 247                         char *modelock_val = getModeValue(modelock, modes[i]);
 248                         if(stricmp(carg, modelock_val) && uaccess < db_enfmodes && !isGodMode(user)) {
 249                             if(!sent_modes_locked) {
 250                                 getFullModeString(modelock, tmp);
 251                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 252                                 sent_modes_locked = 1;
 253                                 if(uaccess < db_getop)
 254                                     deop_user = 1;
 255                             }
 256                             if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 257                                 modeBufferSet(modeBuf, add, modes[i], modelock_val);
 258                             break;
 259                         }
 260                     }
 261                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 262                         int *modelock_val = getModeValue(modelock, modes[i]);
 263                         if(atoi(carg) != *modelock_val && uaccess < db_enfmodes && !isGodMode(user)) {
 264                             if(!sent_modes_locked) {
 265                                 getFullModeString(modelock, tmp);
 266                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 267                                 sent_modes_locked = 1;
 268                                 if(uaccess < db_getop)
 269                                     deop_user = 1;
 270                             }
 271                             sprintf(tmp, "%d", *modelock_val);
 272                             if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 273                                 modeBufferSet(modeBuf, add, modes[i], tmp);
 274                             break;
 275                         }
 276                     }
 277                 } else if(!add && (modetype & CHANNEL_MODE_TYPE) == CHANNEL_MODE_TYPE_B) {
 278                     if(arg == argc) {
 279                         break;
 280                     }
 281                     carg = argv[arg++];
 282                 } else
 283                     carg = NULL;
 284                 if(isModeAffected(modelock, modes[i]) && add == !isModeSet(modelock, modes[i]) && uaccess < db_enfmodes && !isGodMode(user)) {
 285                     if(!sent_modes_locked) {
 286                         getFullModeString(modelock, tmp);
 287                         reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 288                         sent_modes_locked = 1;
 289                         if(uaccess < db_getop)
 290                             deop_user = 1;
 291                     }
 292                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 293                         modeBufferSet(modeBuf, !add, modes[i], carg);
 294                     break;
 295                 }
 296                 break;
 297         }
 298     }
 299     if(deop_user && !neonserv_cmd_mode_botwar_detect(client, user, chan)) {
 300         modeBufferDeop(modeBuf, user->nick);
 301     }
 302     freeModeBuffer(modeBuf);
 303     freeModeNode(modelock);
 304 }
 305
 306 static int neonserv_cmd_mode_botwar_detect(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan) {
 307     struct ChanUser *chanuser = getChanUser(user, chan);
 308     if(!chanuser) return 0; //flying super cow?
 309     if(time(0) - chanuser->changeTime > BOTWAR_DETECTION_TIME) {
 310         chanuser->changeTime = time(0);
 311         chanuser->chageEvents = 1;
 312     } else {
 313         if(!botwar_detect_executed)
 314             chanuser->chageEvents++;
 315         botwar_detect_executed = 1;
 316         if(chanuser->chageEvents >= BOTWAR_DETECTION_EVENTS || chanuser->chageEvents < 0) {
 317             //BOTWAR!
 318             chanuser->changeTime = time(0);
 319             if(chanuser->chageEvents > 0) {
 320                 char *alertchan = get_string_field("General.alertchan");
 321                 putsock(client, "NOTICE @%s :%s %s", chan->name, get_language_string(user, "NS_BOTWAR_DETECTED"), (alertchan ? get_language_string(user, "NS_BOTWAR_REPORTED") : ""));
 322                 if(alertchan) {
 323                     struct ChanNode *alertchan_chan = getChanByName(alertchan);
 324                     struct ClientSocket *alertclient;
 325                     if(alertchan_chan && (alertclient = getBotForChannel(chan)) != NULL) {
 326                         char msgBuf[MAXLEN];
 327                         putsock(alertclient, "PRIVMSG %s :%s", alertchan_chan->name, build_language_string(NULL, msgBuf, "NS_BOTWAR_ALERT", chan->name, user->nick));
 328                     }
 329                 }
 330             }
 331             chanuser->chageEvents = -2;
 332             return 1;
 333         }
 334     }
 335     return 0;
 336 }
 337