src/event_neonserv_mode.c

   1 /* event_neonserv_mode.c - NeonServ v5.0
   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
  21 struct neonserv_event_mode_cache {
  22     struct ClientSocket *client;
  23     struct UserNode *user;
  24     char *modes;
  25     char **argv;
  26     int argc;
  27 };
  28
  29 static void neonserv_event_mode(struct UserNode *user, struct ChanNode *chan, char *modes, char **argv, int argc) {
  30     struct ClientSocket *client = getBotForChannel(chan);
  31     if(!client) return; //we can't "see" this event
  32     if(user->flags & (USERFLAG_ISBOT | USERFLAG_ISIRCOP)) return;
  33     loadChannelSettings(chan);
  34     if(!(chan->flags & CHANFLAG_CHAN_REGISTERED)) return;
  35     struct neonserv_event_mode_cache *cache = malloc(sizeof(*cache));
  36     char **temp_argv = NULL;
  37     if(argc)
  38         temp_argv = malloc(argc*sizeof(*temp_argv));
  39     if (!cache || (argc && !temp_argv)) {
  40         perror("malloc() failed");
  41         return;
  42     }
  43     if(argc) {
  44         int i;
  45         for(i = 0; i < argc; i++) {
  46             temp_argv[i] = strdup(argv[i]);
  47         }
  48     }
  49     cache->client = client;
  50     cache->user = user;
  51     cache->modes = strdup(modes);
  52     cache->argv = temp_argv;
  53     cache->argc = argc;
  54     get_userlist_with_invisible(chan, neonserv_event_mode_userlist_lookup, cache);
  55 }
  56
  57 static USERLIST_CALLBACK(neonserv_event_mode_userlist_lookup) {
  58     struct neonserv_event_mode_cache *cache = data;
  59     neonserv_event_mode_async1(cache->client, cache->user, chan, cache->modes, cache->argv, cache->argc);
  60     if(cache->argc) {
  61         int i;
  62         for(i = 0; i < cache->argc; i++) {
  63             free(cache->argv[i]);
  64         }
  65         free(cache->argv);
  66     }
  67     free(cache);
  68 }
  69
  70 static void neonserv_event_mode_async1(struct ClientSocket *client, struct UserNode *user, struct ChanNode *chan, char *modes, char **argv, int argc) {
  71     struct ClientSocket *textclient = ((client->flags & SOCKET_FLAG_PREFERRED) ? client : get_prefered_bot(client->botid));
  72     MYSQL_ROW row, defaults = NULL;
  73     int i, arg, add = 1, skip = 0;
  74     unsigned int modetype;
  75     int db_canop, db_canvoice, db_canban, db_enfmodes;
  76     struct ModeNode *modelock = createModeNode(NULL);
  77     struct ModeBuffer *modeBuf;
  78     struct UserNode *cuser;
  79     struct ChanUser *chanuser;
  80     modeBuf = initModeBuffer(client, chan);
  81     printf_mysql_query("SELECT `channel_canop`, `channel_canvoice`, `channel_canban`, `channel_enfmodes`, `channel_modes` FROM `channels` WHERE `channel_id` = '%d'", chan->channel_id);
  82     row = mysql_fetch_row(mysql_use());
  83     if(row[0] == NULL || row[1] == NULL || row[2] == NULL || row[3] == NULL) {
  84         printf_mysql_query("SELECT `channel_canop`, `channel_canvoice`, `channel_canban`, `channel_enfmodes`, `channel_modes` FROM `channels` WHERE `channel_name` = 'defaults'");
  85         defaults = mysql_fetch_row(mysql_use());
  86     }
  87     db_canop = atoi((row[0] ? row[0] : defaults[0]));
  88     db_canvoice = atoi((row[1] ? row[1] : defaults[1]));
  89     db_canban = atoi((row[2] ? row[2] : defaults[2]));
  90     db_enfmodes = atoi((row[3] ? row[3] : defaults[3]));
  91     if(row[4])
  92         parseModeString(modelock, row[4]);
  93     else if(defaults[4])
  94         parseModeString(modelock, defaults[4]);
  95     int uaccess = getChannelAccess(user, chan, 0);
  96     char *carg;
  97     int sent_modes_locked = 0;
  98     char tmp[MAXLEN];
  99     arg = 0;
 100     for(i = 0; i < strlen(modes); i++) {
 101         switch(modes[i]) {
 102             case '+':
 103                 add = 1;
 104                 break;
 105             case '-':
 106                 add = 0;
 107                 break;
 108             case 'o':
 109             case 'v':
 110                 if(arg == argc) {
 111                     break;
 112                 }
 113                 carg = argv[arg++];
 114                 if(modes[i] == 'o') {
 115                     if(uaccess < db_canop) {
 116                         reply(textclient, user, "NS_MODE_ENFOPS", chan->name);
 117                         db_canop = -1;
 118                     }
 119                     if(db_canop == -1) {
 120                         modeBufferSet(modeBuf, !add, modes[i], carg);
 121                         break;
 122                     }
 123                 } else {
 124                     if(uaccess < db_canvoice) {
 125                         reply(textclient, user, "NS_MODE_ENFVOICE", chan->name);
 126                         db_canvoice = -1;
 127                     }
 128                     if(db_canvoice == -1) {
 129                         modeBufferSet(modeBuf, !add, modes[i], carg);
 130                         break;
 131                     }
 132                 }
 133                 cuser = searchUserByNick(carg);
 134                 if(!cuser) {
 135                     break; //internal Bot error - this should never happen
 136                 }
 137                 if(!add) {
 138                     //check protection
 139                     if(isBot(cuser)) {
 140                         reply(textclient, user, "NS_SERVICE_IMMUNE", cuser->nick);
 141                         modeBufferSet(modeBuf, !add, modes[i], carg);
 142                         break;
 143                     }
 144                     if(isUserProtected(chan, cuser, user)) {
 145                         reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 146                         modeBufferSet(modeBuf, !add, modes[i], carg);
 147                         break;
 148                     }
 149                 }
 150                 break;
 151             case 'b':
 152                 if(arg == argc) {
 153                     break;
 154                 }
 155                 carg = argv[arg++];
 156                 if(uaccess < db_canban) {
 157                     reply(textclient, user, "NS_MODE_CANBAN", chan->name);
 158                     db_canban = -1;
 159                 }
 160                 if(db_canban == -1) {
 161                     modeBufferSet(modeBuf, !add, modes[i], carg);
 162                     break;
 163                 }
 164                 char hostmask_buffer[NICKLEN+USERLEN+HOSTLEN+3];
 165                 char usermask[NICKLEN+USERLEN+HOSTLEN+3];
 166                 int match_count = 0;
 167                 carg = make_banmask(carg, hostmask_buffer);
 168                 if(add) {
 169                     for(chanuser = getChannelUsers(chan, NULL); chanuser; chanuser = getChannelUsers(chan, chanuser)) {
 170                         cuser = chanuser->user;
 171                         sprintf(usermask, "%s!%s@%s", cuser->nick, cuser->ident, cuser->host);
 172                         if(!match(carg, usermask)) {
 173                             if(isUserProtected(chan, cuser, user)) {
 174                                 reply(textclient, user, "NS_USER_PROTECTED", cuser->nick);
 175                                 skip = 1;
 176                                 break;
 177                             }
 178                             match_count++;
 179                         }
 180                     }
 181                     if(match_count > 4 && (match_count * 3) > chan->usercount) {
 182                         reply(textclient, user, "NS_LAME_MASK_WARNING", carg, match_count);
 183                     }
 184                 }
 185                 if(skip) {
 186                     modeBufferSet(modeBuf, !add, modes[i], carg);
 187                 }
 188                 break;
 189             default:
 190                 modetype = getModeType(modelock, modes[i]);
 191                 if(modetype == 0) {
 192                     break; //unknown mode
 193                 }
 194
 195                 if(add && (modetype & CHANNEL_MODE_TYPE) != CHANNEL_MODE_TYPE_D) {
 196                     if(arg == argc) {
 197                         break;
 198                     }
 199                     carg = argv[arg++];
 200                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 201                         char *modelock_val = getModeValue(modelock, modes[i]);
 202                         if(stricmp(carg, modelock_val) && uaccess < db_enfmodes && !isGodMode(user)) {
 203                             if(!sent_modes_locked) {
 204                                 getFullModeString(modelock, tmp);
 205                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 206                                 sent_modes_locked = 1;
 207                             }
 208                             modeBufferSet(modeBuf, add, modes[i], modelock_val);
 209                             break;
 210                         }
 211                     }
 212                     if((modetype & CHANNEL_MODE_VALUE) == CHANNEL_MODE_VALUE_STRING && isModeSet(modelock, modes[i])) {
 213                         int *modelock_val = getModeValue(modelock, modes[i]);
 214                         if(atoi(carg) != *modelock_val && uaccess < db_enfmodes && !isGodMode(user)) {
 215                             if(!sent_modes_locked) {
 216                                 getFullModeString(modelock, tmp);
 217                                 reply(textclient, user, "NS_MODE_LOCKED", tmp, chan->name);
 218                                 sent_modes_locked = 1;
 219                             }
 220                             sprintf(tmp, "%d", *modelock_val);
 221                             modeBufferSet(modeBuf, add, modes[i], tmp);
 222                             break;
 223                         }
 224                     }
 225                 } else if(!add && (modetype & CHANNEL_MODE_TYPE) == CHANNEL_MODE_TYPE_B) {
 226                     if(arg == argc) {
 227                         break;
 228                     }
 229                     carg = argv[arg++];
 230                 } else
 231                     carg = NULL;
 232                 if(isModeAffected(modelock, modes[i]) && add == !isModeSet(modelock, modes[i]) && 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                     }
 238                     modeBufferSet(modeBuf, !add, modes[i], carg);
 239                     break;
 240                 }
 241                 break;
 242         }
 243     }
 244     freeModeBuffer(modeBuf);
 245     freeModeNode(modelock);
 246 }