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->modes);
  71     free(cache);
  72 }
  73
  74 static void neonserv_event_mode_async1(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan, char *modes, char **argv, int argc) {
  75     struct ClientSocket *textclient = ((client->flags & SOCKET_FLAG_PREFERRED) ? client : get_prefered_bot(client->botid));
  76     botwar_detect_executed = 0;
  77     MYSQL_ROW row, defaults = NULL;
  78     int i, arg, add = 1, skip = 0;
  79     unsigned int modetype;
  80     int db_canop, db_canhalfop, db_canvoice, db_canban, db_enfmodes, db_getop, db_gethalfop, db_getvoice;
  81     struct ModeNode *modelock = createModeNode(NULL);
  82     struct ModeBuffer *modeBuf;
  83     struct UserNode *cuser;
  84     struct ChanUser *chanuser;
  85     int with_halfops = get_int_field("General.have_halfop");
  86     modeBuf = initModeBuffer(client, chan);
  87     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);
  88     row = mysql_fetch_row(mysql_use());
  89     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)) {
  90         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'");
  91         defaults = mysql_fetch_row(mysql_use());
  92     }
  93     db_canop = atoi((row[0] ? row[0] : defaults[0]));
  94     db_canvoice = atoi((row[1] ? row[1] : defaults[1]));
  95     db_canban = atoi((row[2] ? row[2] : defaults[2]));
  96     db_enfmodes = atoi((row[3] ? row[3] : defaults[3]));
  97     db_getop = atoi((row[5] ? row[5] : defaults[5]));
  98     db_getvoice = atoi((row[6] ? row[6] : defaults[6]));
  99     db_gethalfop = (with_halfops ? atoi((row[7] ? row[7] : defaults[7])) : 0);
 100     db_canhalfop = (with_halfops ? atoi((row[8] ? row[8] : defaults[8])) : 0);
 101     if(row[4])
 102         parseModeString(modelock, row[4]);
 103     else if(defaults[4])
 104         parseModeString(modelock, defaults[4]);
 105     int uaccess = getChannelAccess(user, chan);
 106     int caccess;
 107     char *carg;
 108     int sent_modes_locked = 0;
 109     char deop_user = 0;
 110     char tmp[MAXLEN];
 111     arg = 0;
 112     for(i = 0; i < strlen(modes); i++) {
 113         switch(modes[i]) {
 114             case '+':
 115                 add = 1;
 116                 break;
 117             case '-':
 118                 add = 0;
 119                 break;
 120             case 'o':
 121             case 'h':
 122             case 'v':
 123                 if(arg == argc) {
 124                     break;
 125                 }
 126                 carg = argv[arg++];
 127                 cuser = searchUserByNick(carg);
 128                 if(!cuser) {
 129                     break; //internal Bot error - this should never happen
 130                 }
 131                 caccess = getChannelAccess(cuser, chan);
 132                 if(modes[i] == 'o' && !add && cuser == client->user) {
 133                     //someone deopped the bot???
 134                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 135                                                 requestOp(client->user, chan);
 136                 }
 137                 if((modes[i] == 'o' || (modes[i] == 'h' && !with_halfops)) && !(add && isBot(cuser))) {
 138                     if(uaccess < db_canop) {
 139                         reply(textclient, user, "NS_MODE_ENFOPS", chan->name);
 140                         db_canop = -1;
 141                         if(uaccess < db_getop)
 142                             deop_user = 1;
 143                     }
 144                     if(db_canop == -1 && caccess < db_getop) {
 145                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 146                             modeBufferSet(modeBuf, !add, modes[i], carg);
 147                         break;
 148                     }
 149                 } else if(modes[i] == 'h' && with_halfops && !(add && isBot(cuser))) {
 150                     if(uaccess < db_canhalfop) {
 151                         reply(textclient, user, "NS_MODE_ENFOPS", chan->name);
 152                         db_canhalfop = -1;
 153                         if(uaccess < db_gethalfop)
 154                             deop_user = 1;
 155                     }
 156                     if(db_canhalfop == -1 && caccess < db_gethalfop) {
 157                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 158                             modeBufferSet(modeBuf, !add, modes[i], carg);
 159                         break;
 160                     }
 161                 } else if(modes[i] == 'v' && !(add && isBot(cuser))) {
 162                     if(uaccess < db_canvoice) {
 163                         reply(textclient, user, "NS_MODE_ENFVOICE", chan->name);
 164                         db_canvoice = -1;
 165                         if(uaccess < db_getop)
 166                             deop_user = 1;
 167                     }
 168                     if(db_canvoice == -1 && caccess < db_getvoice) {
 169                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 170                             modeBufferSet(modeBuf, !add, modes[i], carg);
 171                         break;
 172                     }
 173                 }
 174                 if(!add) {
 175                     //check protection
 176                     if(isBot(cuser)) {
 177                         //don't send this - just try to reop
 178                         //reply(textclient, user, "NS_SERVICE_IMMUNE", cuser->nick);
 179                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 180                             modeBufferSet(modeBuf, !add, modes[i], carg);
 181                         break;
 182                     }
 183                     if(isUserProtected(chan, cuser, user)) {
 184                         reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 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                 }
 192                 break;
 193             case 'b':
 194                 if(arg == argc) {
 195                     break;
 196                 }
 197                 carg = argv[arg++];
 198                 if(uaccess < db_canban) {
 199                     reply(textclient, user, "NS_MODE_CANBAN", chan->name);
 200                     db_canban = -1;
 201                 }
 202                 if(db_canban == -1) {
 203                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 204                         modeBufferSet(modeBuf, !add, modes[i], carg);
 205                     if(uaccess < db_getop)
 206                         deop_user = 1;
 207                     break;
 208                 }
 209                 char hostmask_buffer[NICKLEN+USERLEN+HOSTLEN+3];
 210                 char usermask[NICKLEN+USERLEN+HOSTLEN+3];
 211                 int match_count = 0;
 212                 carg = make_banmask(carg, hostmask_buffer);
 213                 if(add) {
 214                     for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = getChannelUsers(chan, chanuser)) {
 215                         cuser = chanuser->user;
 216                         sprintf(usermask, "%s!%s@%s", cuser->nick, cuser->ident, cuser->host);
 217                         if(!match(carg, usermask)) {
 218                             if(isUserProtected(chan, cuser, user)) {
 219                                 reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 220                                 skip = 1;
 221                                 break;
 222                             }
 223                             match_count++;
 224                         }
 225                     }
 226                     if(match_count > 4 && (match_count * 3) > chan->usercount) {
 227                         reply(textclient, user, "NS_LAME_MASK_WARNING", carg, match_count);
 228                     }
 229                 }
 230                 if(skip) {
 231                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 232                         modeBufferSet(modeBuf, !add, modes[i], carg);
 233                     if(uaccess < db_getop)
 234                         deop_user = 1;
 235                 }
 236                 break;
 237             default:
 238                 modetype = getModeType(modelock, modes[i]);
 239                 if(modetype == 0) {
 240                     break; //unknown mode
 241                 }
 242
 243                 if(add && (modetype & CHANNEL_MODE_TYPE) != CHANNEL_MODE_TYPE_D) {
 244                     if(arg == argc) {
 245                         break;
 246                     }
 247                     carg = argv[arg++];
 248                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 249                         char *modelock_val = getModeValue(modelock, modes[i]);
 250                         if(stricmp(carg, modelock_val) && uaccess < db_enfmodes && !isGodMode(user)) {
 251                             if(!sent_modes_locked) {
 252                                 getFullModeString(modelock, tmp);
 253                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 254                                 sent_modes_locked = 1;
 255                                 if(uaccess < db_getop)
 256                                     deop_user = 1;
 257                             }
 258                             if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 259                                 modeBufferSet(modeBuf, add, modes[i], modelock_val);
 260                             break;
 261                         }
 262                     }
 263                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 264                         int *modelock_val = getModeValue(modelock, modes[i]);
 265                         if(atoi(carg) != *modelock_val && uaccess < db_enfmodes && !isGodMode(user)) {
 266                             if(!sent_modes_locked) {
 267                                 getFullModeString(modelock, tmp);
 268                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 269                                 sent_modes_locked = 1;
 270                                 if(uaccess < db_getop)
 271                                     deop_user = 1;
 272                             }
 273                             sprintf(tmp, "%d", *modelock_val);
 274                             if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 275                                 modeBufferSet(modeBuf, add, modes[i], tmp);
 276                             break;
 277                         }
 278                     }
 279                 } else if(!add && (modetype & CHANNEL_MODE_TYPE) == CHANNEL_MODE_TYPE_B) {
 280                     if(arg == argc) {
 281                         break;
 282                     }
 283                     carg = argv[arg++];
 284                 } else
 285                     carg = NULL;
 286                 if(isModeAffected(modelock, modes[i]) && add == !isModeSet(modelock, modes[i]) && uaccess < db_enfmodes && !isGodMode(user)) {
 287                     if(!sent_modes_locked) {
 288                         getFullModeString(modelock, tmp);
 289                         reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 290                         sent_modes_locked = 1;
 291                         if(uaccess < db_getop)
 292                             deop_user = 1;
 293                     }
 294                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 295                         modeBufferSet(modeBuf, !add, modes[i], carg);
 296                     break;
 297                 }
 298                 break;
 299         }
 300     }
 301     if(deop_user && !neonserv_cmd_mode_botwar_detect(client, user, chan)) {
 302         modeBufferDeop(modeBuf, user->nick);
 303     }
 304     freeModeBuffer(modeBuf);
 305     freeModeNode(modelock);
 306 }
 307
 308 static int neonserv_cmd_mode_botwar_detect(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan) {
 309     struct ChanUser *chanuser = getChanUser(user, chan);
 310     if(!chanuser) return 0; //flying super cow?
 311     if(time(0) - chanuser->changeTime > BOTWAR_DETECTION_TIME) {
 312         chanuser->changeTime = time(0);
 313         chanuser->chageEvents = 1;
 314     } else {
 315         if(!botwar_detect_executed)
 316             chanuser->chageEvents++;
 317         botwar_detect_executed = 1;
 318         if(chanuser->chageEvents >= BOTWAR_DETECTION_EVENTS || chanuser->chageEvents < 0) {
 319             //BOTWAR!
 320             chanuser->changeTime = time(0);
 321             if(chanuser->chageEvents > 0) {
 322                 char *alertchan = get_string_field("General.alertchan");
 323                 putsock(client, "NOTICE @%s :%s %s", chan->name, get_language_string(user, "NS_BOTWAR_DETECTED"), (alertchan ? get_language_string(user, "NS_BOTWAR_REPORTED") : ""));
 324                 if(alertchan) {
 325                     struct ChanNode *alertchan_chan = getChanByName(alertchan);
 326                     struct ClientSocket *alertclient;
 327                     if(alertchan_chan && (alertclient = getBotForChannel(chan)) != NULL) {
 328                         char msgBuf[MAXLEN];
 329                         putsock(alertclient, "PRIVMSG %s :%s", alertchan_chan->name, build_language_string(NULL, msgBuf, "NS_BOTWAR_ALERT", chan->name, user->nick));
 330                     }
 331                 }
 332             }
 333             chanuser->chageEvents = -2;
 334             return 1;
 335         }
 336     }
 337     return 0;
 338 }
 339