src/event_neonserv_mode.c

   1 /* event_neonserv_mode.c - NeonServ v5.2
   2  * Copyright (C) 2011  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;
  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` 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) {
  88         printf_mysql_query("SELECT `channel_canop`, `channel_canvoice`, `channel_canban`, `channel_enfmodes`, `channel_modes` 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     if(row[4])
  96         parseModeString(modelock, row[4]);
  97     else if(defaults[4])
  98         parseModeString(modelock, defaults[4]);
  99     int uaccess = getChannelAccess(user, chan);
 100     char *carg;
 101     int sent_modes_locked = 0;
 102     char tmp[MAXLEN];
 103     arg = 0;
 104     for(i = 0; i < strlen(modes); i++) {
 105         switch(modes[i]) {
 106             case '+':
 107                 add = 1;
 108                 break;
 109             case '-':
 110                 add = 0;
 111                 break;
 112             case 'o':
 113             case 'v':
 114                 if(arg == argc) {
 115                     break;
 116                 }
 117                 carg = argv[arg++];
 118                 cuser = searchUserByNick(carg);
 119                 if(modes[i] == 'o' && !(add && isBot(cuser))) {
 120                     if(uaccess < db_canop) {
 121                         reply(textclient, user, "NS_MODE_ENFOPS", chan->name);
 122                         db_canop = -1;
 123                     }
 124                     if(db_canop == -1) {
 125                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 126                             modeBufferSet(modeBuf, !add, modes[i], carg);
 127                         break;
 128                     }
 129                 } else if(modes[i] == 'v') {
 130                     if(uaccess < db_canvoice) {
 131                         reply(textclient, user, "NS_MODE_ENFVOICE", chan->name);
 132                         db_canvoice = -1;
 133                     }
 134                     if(db_canvoice == -1) {
 135                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 136                             modeBufferSet(modeBuf, !add, modes[i], carg);
 137                         break;
 138                     }
 139                 }
 140                 if(!cuser) {
 141                     break; //internal Bot error - this should never happen
 142                 }
 143                 if(!add) {
 144                     //check protection
 145                     if(isBot(cuser)) {
 146                         //don't send this - just try to reop
 147                         //reply(textclient, user, "NS_SERVICE_IMMUNE", cuser->nick);
 148                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 149                             modeBufferSet(modeBuf, !add, modes[i], carg);
 150                         break;
 151                     }
 152                     if(isUserProtected(chan, cuser, user)) {
 153                         reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 154                         if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 155                             modeBufferSet(modeBuf, !add, modes[i], carg);
 156                         break;
 157                     }
 158                 }
 159                 break;
 160             case 'b':
 161                 if(arg == argc) {
 162                     break;
 163                 }
 164                 carg = argv[arg++];
 165                 if(uaccess < db_canban) {
 166                     reply(textclient, user, "NS_MODE_CANBAN", chan->name);
 167                     db_canban = -1;
 168                 }
 169                 if(db_canban == -1) {
 170                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 171                         modeBufferSet(modeBuf, !add, modes[i], carg);
 172                     break;
 173                 }
 174                 char hostmask_buffer[NICKLEN+USERLEN+HOSTLEN+3];
 175                 char usermask[NICKLEN+USERLEN+HOSTLEN+3];
 176                 int match_count = 0;
 177                 carg = make_banmask(carg, hostmask_buffer);
 178                 if(add) {
 179                     for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = getChannelUsers(chan, chanuser)) {
 180                         cuser = chanuser->user;
 181                         sprintf(usermask, "%s!%s@%s", cuser->nick, cuser->ident, cuser->host);
 182                         if(!match(carg, usermask)) {
 183                             if(isUserProtected(chan, cuser, user)) {
 184                                 reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 185                                 skip = 1;
 186                                 break;
 187                             }
 188                             match_count++;
 189                         }
 190                     }
 191                     if(match_count > 4 && (match_count * 3) > chan->usercount) {
 192                         reply(textclient, user, "NS_LAME_MASK_WARNING", carg, match_count);
 193                     }
 194                 }
 195                 if(skip && !neonserv_cmd_mode_botwar_detect(client, user, chan)) {
 196                     modeBufferSet(modeBuf, !add, modes[i], carg);
 197                 }
 198                 break;
 199             default:
 200                 modetype = getModeType(modelock, modes[i]);
 201                 if(modetype == 0) {
 202                     break; //unknown mode
 203                 }
 204
 205                 if(add && (modetype & CHANNEL_MODE_TYPE) != CHANNEL_MODE_TYPE_D) {
 206                     if(arg == argc) {
 207                         break;
 208                     }
 209                     carg = argv[arg++];
 210                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 211                         char *modelock_val = getModeValue(modelock, modes[i]);
 212                         if(stricmp(carg, modelock_val) && uaccess < db_enfmodes && !isGodMode(user)) {
 213                             if(!sent_modes_locked) {
 214                                 getFullModeString(modelock, tmp);
 215                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 216                                 sent_modes_locked = 1;
 217                             }
 218                             if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 219                                 modeBufferSet(modeBuf, add, modes[i], modelock_val);
 220                             break;
 221                         }
 222                     }
 223                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 224                         int *modelock_val = getModeValue(modelock, modes[i]);
 225                         if(atoi(carg) != *modelock_val && uaccess < db_enfmodes && !isGodMode(user)) {
 226                             if(!sent_modes_locked) {
 227                                 getFullModeString(modelock, tmp);
 228                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 229                                 sent_modes_locked = 1;
 230                             }
 231                             sprintf(tmp, "%d", *modelock_val);
 232                             if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 233                                 modeBufferSet(modeBuf, add, modes[i], tmp);
 234                             break;
 235                         }
 236                     }
 237                 } else if(!add && (modetype & CHANNEL_MODE_TYPE) == CHANNEL_MODE_TYPE_B) {
 238                     if(arg == argc) {
 239                         break;
 240                     }
 241                     carg = argv[arg++];
 242                 } else
 243                     carg = NULL;
 244                 if(isModeAffected(modelock, modes[i]) && add == !isModeSet(modelock, modes[i]) && uaccess < db_enfmodes && !isGodMode(user)) {
 245                     if(!sent_modes_locked) {
 246                         getFullModeString(modelock, tmp);
 247                         reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 248                         sent_modes_locked = 1;
 249                     }
 250                     if(!neonserv_cmd_mode_botwar_detect(client, user, chan))
 251                         modeBufferSet(modeBuf, !add, modes[i], carg);
 252                     break;
 253                 }
 254                 break;
 255         }
 256     }
 257     freeModeBuffer(modeBuf);
 258     freeModeNode(modelock);
 259 }
 260
 261 static int neonserv_cmd_mode_botwar_detect(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan) {
 262     struct ChanUser *chanuser = getChanUser(user, chan);
 263     if(!chanuser) return 0; //flying super cow?
 264     if(time(0) - chanuser->changeTime > BOTWAR_DETECTION_TIME) {
 265         chanuser->changeTime = time(0);
 266         chanuser->chageEvents = 1;
 267     } else {
 268         if(!botwar_detect_executed)
 269             chanuser->chageEvents++;
 270         botwar_detect_executed = 1;
 271         if(chanuser->chageEvents >= BOTWAR_DETECTION_EVENTS || chanuser->chageEvents < 0) {
 272             //BOTWAR!
 273             chanuser->changeTime = time(0);
 274             if(chanuser->chageEvents > 0) {
 275                 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") : ""));
 276                 if(BOTWAR_ALERT_CHAN) {
 277                     struct ChanNode *alertchan = getChanByName(BOTWAR_ALERT_CHAN);
 278                     struct ClientSocket *alertclient;
 279                     if(alertchan && (alertclient = getBotForChannel(chan)) != NULL) {
 280                         char msgBuf[MAXLEN];
 281                         putsock(alertclient, "PRIVMSG %s :%s", alertchan->name, build_language_string(NULL, msgBuf, "NS_BOTWAR_ALERT", chan->name, user->nick));
 282                     }
 283                 }
 284             }
 285             chanuser->chageEvents = -2;
 286             return 1;
 287         }
 288     }
 289     return 0;
 290 }
 291