2 * ngIRCd -- The Next Generation IRC Daemon
3 * Copyright (c)2001-2014 Alexander Barton (alex@barton.de) and Contributors.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 * Please read the file COPYING, README and AUTHORS for more information.
29 #include "conn-func.h"
33 #include "irc-write.h"
46 static CHANNEL *My_Channels;
47 static CL2CHAN *My_Cl2Chan;
49 static CL2CHAN *Get_Cl2Chan PARAMS(( CHANNEL *Chan, CLIENT *Client ));
50 static CL2CHAN *Add_Client PARAMS(( CHANNEL *Chan, CLIENT *Client ));
51 static bool Remove_Client PARAMS(( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const char *Reason, bool InformServer ));
52 static CL2CHAN *Get_First_Cl2Chan PARAMS(( CLIENT *Client, CHANNEL *Chan ));
53 static CL2CHAN *Get_Next_Cl2Chan PARAMS(( CL2CHAN *Start, CLIENT *Client, CHANNEL *Chan ));
54 static void Delete_Channel PARAMS(( CHANNEL *Chan ));
55 static void Free_Channel PARAMS(( CHANNEL *Chan ));
56 static void Set_KeyFile PARAMS((CHANNEL *Chan, const char *KeyFile));
67 GLOBAL struct list_head *
68 Channel_GetListBans(CHANNEL *c)
75 GLOBAL struct list_head *
76 Channel_GetListExcepts(CHANNEL *c)
79 return &c->list_excepts;
83 GLOBAL struct list_head *
84 Channel_GetListInvites(CHANNEL *c)
87 return &c->list_invites;
92 * Generate predefined persistent channels and &SERVER
95 Channel_InitPredefined( void )
99 const struct Conf_Channel *conf_chan;
101 char modes[COMMAND_LEN], name[CHANNEL_NAME_LEN];
102 size_t i, n, channel_count = array_length(&Conf_Channels, sizeof(*conf_chan));
104 conf_chan = array_start(&Conf_Channels);
106 assert(channel_count == 0 || conf_chan != NULL);
108 for (i = 0; i < channel_count; i++, conf_chan++) {
109 if (!conf_chan->name[0])
111 if (!Channel_IsValidName(conf_chan->name)) {
113 "Can't create pre-defined channel: invalid name: \"%s\"",
118 new_chan = Channel_Search(conf_chan->name);
121 "Can't create pre-defined channel \"%s\": name already in use.",
123 Set_KeyFile(new_chan, conf_chan->keyfile);
127 new_chan = Channel_Create(conf_chan->name);
129 Log(LOG_ERR, "Can't create pre-defined channel \"%s\"!",
133 Channel_ModeAdd(new_chan, 'P');
135 if (conf_chan->topic[0])
136 Channel_SetTopic(new_chan, NULL, conf_chan->topic);
138 /* Evaluate modes strings with fake requests */
139 if (conf_chan->modes_num) {
140 /* Prepare fake request structure */
141 strlcpy(name, conf_chan->name, sizeof(name));
142 Log(LOG_INFO, "Evaluating predefined channel modes for \"%s\".", name);
144 Req.prefix = Client_ID(Client_ThisServer());
145 Req.command = "MODE";
147 /* Iterate over channel modes strings */
148 for (n = 0; n < conf_chan->modes_num; n++) {
150 strlcpy(modes, conf_chan->modes[n], sizeof(modes));
151 Log(LOG_DEBUG, "Evaluate \"MODE %s %s\".", name, modes);
152 c = strtok(modes, " ");
153 while (c && Req.argc < 15) {
154 Req.argv[Req.argc++] = c;
159 /* Handling of legacy "Key" and "MaxUsers" settings:
160 * Enforce setting the respective mode(s), to support
161 * the legacy "Mode = kl" notation, which was valid but
162 * is an invalid MODE string: key and limit are missing!
163 * So set them manually when "k" or "l" are detected in
164 * the first MODE parameter ... */
165 if (Req.argc > 1 && strchr(Req.argv[1], 'k')) {
166 Channel_SetKey(new_chan, conf_chan->key);
167 Channel_ModeAdd(new_chan, 'k');
169 if (strchr(Req.argv[1], 'l')) {
170 Channel_SetMaxUsers(new_chan, conf_chan->maxusers);
171 Channel_ModeAdd(new_chan, 'l');
174 IRC_MODE(Client_ThisServer(), &Req);
177 /* Original channel modes srings are no longer needed */
178 free(conf_chan->modes[n]);
182 Set_KeyFile(new_chan, conf_chan->keyfile);
185 "Created pre-defined channel \"%s\", mode \"%s\" (key \"%s\", limit %d).",
186 new_chan->name, new_chan->modes, new_chan->key,
190 array_free(&Conf_Channels);
192 /* Make sure the local &SERVER channel exists */
193 if (!Channel_Search("&SERVER")) {
194 new_chan = Channel_Create("&SERVER");
196 Channel_SetModes(new_chan, "mnPt");
197 Channel_SetTopic(new_chan, Client_ThisServer(),
200 Log(LOG_ERR, "Failed to create \"&SERVER\" channel!");
202 LogDebug("Required channel \"&SERVER\" already exists, ok.");
203 } /* Channel_InitPredefined */
207 Free_Channel(CHANNEL *chan)
209 array_free(&chan->topic);
210 array_free(&chan->keyfile);
211 Lists_Free(&chan->list_bans);
212 Lists_Free(&chan->list_excepts);
213 Lists_Free(&chan->list_invites);
223 CL2CHAN *cl2chan, *cl2chan_next;
225 /* free struct Channel */
233 /* Free Channel allocation table */
234 cl2chan = My_Cl2Chan;
236 cl2chan_next = cl2chan->next;
238 cl2chan = cl2chan_next;
245 * This function lets a client join a channel. First, the function
246 * checks that the specified channel name is valid and that the client
247 * isn't already a member. If the specified channel doesn't exist,
248 * a new channel is created. Client is added to channel by function
252 Channel_Join( CLIENT *Client, const char *Name )
256 assert(Client != NULL);
257 assert(Name != NULL);
259 /* Check that the channel name is valid */
260 if (! Channel_IsValidName(Name)) {
261 IRC_WriteErrClient(Client, ERR_NOSUCHCHANNEL_MSG,
262 Client_ID(Client), Name);
266 chan = Channel_Search(Name);
268 /* Check if the client is already in the channel */
269 if (Get_Cl2Chan(chan, Client))
272 /* If the specified channel does not exist, the channel
274 chan = Channel_Create(Name);
279 /* Add user to Channel */
280 if (! Add_Client(chan, Client))
288 * Part client from channel.
289 * This function lets a client part from a channel. First, the function checks
290 * if the channel exists and the client is a member of it and sends out
291 * appropriate error messages if not. The real work is done by the function
295 Channel_Part(CLIENT * Client, CLIENT * Origin, const char *Name, const char *Reason)
299 assert(Client != NULL);
300 assert(Name != NULL);
301 assert(Reason != NULL);
303 /* Check that specified channel exists */
304 chan = Channel_Search(Name);
306 IRC_WriteErrClient(Client, ERR_NOSUCHCHANNEL_MSG,
307 Client_ID(Client), Name);
311 /* Check that the client is in the channel */
312 if (!Get_Cl2Chan(chan, Client)) {
313 IRC_WriteErrClient(Client, ERR_NOTONCHANNEL_MSG,
314 Client_ID(Client), Name);
318 if (Conf_MorePrivacy)
321 /* Part client from channel */
322 if (!Remove_Client(REMOVE_PART, chan, Client, Origin, Reason, true))
330 * Kick user from Channel
333 Channel_Kick(CLIENT *Peer, CLIENT *Target, CLIENT *Origin, const char *Name,
337 bool can_kick = false;
339 assert(Peer != NULL);
340 assert(Target != NULL);
341 assert(Origin != NULL);
342 assert(Name != NULL);
343 assert(Reason != NULL);
345 /* Check that channel exists */
346 chan = Channel_Search( Name );
348 IRC_WriteErrClient(Origin, ERR_NOSUCHCHANNEL_MSG,
349 Client_ID(Origin), Name);
353 if (Client_Type(Peer) != CLIENT_SERVER &&
354 Client_Type(Origin) != CLIENT_SERVICE) {
355 /* Check that user is on the specified channel */
356 if (!Channel_IsMemberOf(chan, Origin)) {
357 IRC_WriteErrClient(Origin, ERR_NOTONCHANNEL_MSG,
358 Client_ID(Origin), Name);
363 /* Check that the client to be kicked is on the specified channel */
364 if (!Channel_IsMemberOf(chan, Target)) {
365 IRC_WriteErrClient(Origin, ERR_USERNOTINCHANNEL_MSG,
366 Client_ID(Origin), Client_ID(Target), Name );
370 if(Client_Type(Peer) == CLIENT_USER) {
371 /* Channel mode 'Q' and user mode 'q' on target: nobody but
372 * IRC Operators and servers can kick the target user */
373 if ((Channel_HasMode(chan, 'Q')
374 || Client_HasMode(Target, 'q')
375 || Client_Type(Target) == CLIENT_SERVICE)
376 && !Client_HasMode(Origin, 'o')) {
377 IRC_WriteErrClient(Origin, ERR_KICKDENY_MSG,
378 Client_ID(Origin), Name,
383 /* Check if client has the rights to kick target */
385 /* Owner can kick everyone */
386 if (Channel_UserHasMode(chan, Peer, 'q'))
389 /* Admin can't kick owner */
390 else if (Channel_UserHasMode(chan, Peer, 'a') &&
391 !Channel_UserHasMode(chan, Target, 'q'))
394 /* Op can't kick owner | admin */
395 else if (Channel_UserHasMode(chan, Peer, 'o') &&
396 !Channel_UserHasMode(chan, Target, 'q') &&
397 !Channel_UserHasMode(chan, Target, 'a'))
400 /* Half Op can't kick owner | admin | op */
401 else if (Channel_UserHasMode(chan, Peer, 'h') &&
402 !Channel_UserHasMode(chan, Target, 'q') &&
403 !Channel_UserHasMode(chan, Target, 'a') &&
404 !Channel_UserHasMode(chan, Target, 'o'))
407 /* IRC operators & IRCd with OperCanMode enabled
408 * can kick anyways regardless of privilege */
409 else if(Client_HasMode(Origin, 'o') && Conf_OperCanMode)
413 IRC_WriteErrClient(Origin, ERR_CHANOPPRIVTOOLOW_MSG,
414 Client_ID(Origin), Name);
419 /* Kick Client from channel */
420 Remove_Client( REMOVE_KICK, chan, Target, Origin, Reason, true);
425 Channel_Quit( CLIENT *Client, const char *Reason )
429 assert( Client != NULL );
430 assert( Reason != NULL );
432 if (Conf_MorePrivacy)
435 IRC_WriteStrRelatedPrefix( Client, Client, false, "QUIT :%s", Reason );
441 Remove_Client( REMOVE_QUIT, c, Client, Client, Reason, false );
448 * Get number of channels this server knows and that are "visible" to
449 * the given client. If no client is given, all channels will be counted.
451 * @param Client The client to check or NULL.
452 * @return Number of channels visible to the client.
455 Channel_CountVisible (CLIENT *Client)
458 unsigned long count = 0;
463 if (!Channel_HasMode(c, 's')
464 || Channel_IsMemberOf(c, Client))
475 Channel_MemberCount( CHANNEL *Chan )
478 unsigned long count = 0;
480 assert( Chan != NULL );
482 cl2chan = My_Cl2Chan;
485 if( cl2chan->channel == Chan ) count++;
486 cl2chan = cl2chan->next;
489 } /* Channel_MemberCount */
493 Channel_CountForUser( CLIENT *Client )
495 /* Count number of channels a user is member of. */
500 assert( Client != NULL );
502 cl2chan = My_Cl2Chan;
505 if( cl2chan->client == Client ) count++;
506 cl2chan = cl2chan->next;
510 } /* Channel_CountForUser */
514 Channel_Name( const CHANNEL *Chan )
516 assert( Chan != NULL );
522 Channel_Modes( CHANNEL *Chan )
524 assert( Chan != NULL );
526 } /* Channel_Modes */
530 Channel_HasMode( CHANNEL *Chan, char Mode )
532 assert( Chan != NULL );
533 return strchr( Chan->modes, Mode ) != NULL;
534 } /* Channel_HasMode */
538 Channel_Key( CHANNEL *Chan )
540 assert( Chan != NULL );
546 Channel_MaxUsers( CHANNEL *Chan )
548 assert( Chan != NULL );
549 return Chan->maxusers;
550 } /* Channel_MaxUsers */
554 Channel_First( void )
557 } /* Channel_First */
561 Channel_Next( CHANNEL *Chan )
563 assert( Chan != NULL );
569 Channel_Search( const char *Name )
571 /* Search channel structure */
576 assert( Name != NULL );
578 search_hash = Hash( Name );
582 if( search_hash == c->hash )
585 if( strcasecmp( Name, c->name ) == 0 ) return c;
590 } /* Channel_Search */
594 Channel_FirstMember( CHANNEL *Chan )
596 assert( Chan != NULL );
597 return Get_First_Cl2Chan( NULL, Chan );
598 } /* Channel_FirstMember */
602 Channel_NextMember( CHANNEL *Chan, CL2CHAN *Cl2Chan )
604 assert( Chan != NULL );
605 assert( Cl2Chan != NULL );
606 return Get_Next_Cl2Chan( Cl2Chan->next, NULL, Chan );
607 } /* Channel_NextMember */
611 Channel_FirstChannelOf( CLIENT *Client )
613 assert( Client != NULL );
614 return Get_First_Cl2Chan( Client, NULL );
615 } /* Channel_FirstChannelOf */
619 Channel_NextChannelOf( CLIENT *Client, CL2CHAN *Cl2Chan )
621 assert( Client != NULL );
622 assert( Cl2Chan != NULL );
623 return Get_Next_Cl2Chan( Cl2Chan->next, Client, NULL );
624 } /* Channel_NextChannelOf */
628 Channel_GetClient( CL2CHAN *Cl2Chan )
630 assert( Cl2Chan != NULL );
631 return Cl2Chan->client;
632 } /* Channel_GetClient */
636 Channel_GetChannel( CL2CHAN *Cl2Chan )
638 assert( Cl2Chan != NULL );
639 return Cl2Chan->channel;
640 } /* Channel_GetChannel */
644 Channel_IsValidName( const char *Name )
646 assert( Name != NULL );
649 if (strlen(Name) <= 1)
652 if (strchr("#&+", Name[0]) == NULL)
654 if (strlen(Name) >= CHANNEL_NAME_LEN)
657 return Name[strcspn(Name, " ,:\007")] == 0;
658 } /* Channel_IsValidName */
662 Channel_ModeAdd( CHANNEL *Chan, char Mode )
665 * If the channel already had this mode, return false.
666 * If the channel mode was newly set return true.
671 assert( Chan != NULL );
673 x[0] = Mode; x[1] = '\0';
674 if( ! Channel_HasMode( Chan, x[0] ))
676 /* Channel does not have this mode yet, set it */
677 strlcat( Chan->modes, x, sizeof( Chan->modes ));
681 } /* Channel_ModeAdd */
685 Channel_ModeDel( CHANNEL *Chan, char Mode )
688 * if the mode was removed return true.
689 * if the channel did not have the mode, return false.
693 assert( Chan != NULL );
695 p = strchr( Chan->modes, Mode );
696 if( ! p ) return false;
698 /* Channel has mode -> delete */
705 } /* Channel_ModeDel */
709 Channel_UserModeAdd( CHANNEL *Chan, CLIENT *Client, char Mode )
711 /* Set Channel-User-Mode.
712 * if mode was newly set, return true.
713 * if the User already had this channel-mode, return false.
719 assert( Chan != NULL );
720 assert( Client != NULL );
722 cl2chan = Get_Cl2Chan( Chan, Client );
723 assert( cl2chan != NULL );
725 x[0] = Mode; x[1] = '\0';
726 if( ! strchr( cl2chan->modes, x[0] ))
728 /* mode not set, -> set it */
729 strlcat( cl2chan->modes, x, sizeof( cl2chan->modes ));
733 } /* Channel_UserModeAdd */
737 Channel_UserModeDel( CHANNEL *Chan, CLIENT *Client, char Mode )
739 /* Delete Channel-User-Mode.
740 * If Mode was removed, return true.
741 * If User did not have the Channel-Mode, return false.
747 assert( Chan != NULL );
748 assert( Client != NULL );
750 cl2chan = Get_Cl2Chan( Chan, Client );
751 assert( cl2chan != NULL );
753 p = strchr( cl2chan->modes, Mode );
754 if( ! p ) return false;
756 /* Client has Mode -> delete */
763 } /* Channel_UserModeDel */
767 Channel_UserModes( CHANNEL *Chan, CLIENT *Client )
769 /* return Users' Channel-Modes */
773 assert( Chan != NULL );
774 assert( Client != NULL );
776 cl2chan = Get_Cl2Chan( Chan, Client );
777 assert( cl2chan != NULL );
779 return cl2chan->modes;
780 } /* Channel_UserModes */
784 Channel_UserHasMode( CHANNEL *Chan, CLIENT *Client, char Mode )
786 return strchr(Channel_UserModes(Chan, Client), Mode) != NULL;
787 } /* Channel_UserHasMode */
791 Channel_IsMemberOf( CHANNEL *Chan, CLIENT *Client )
793 /* Test if Client is on Channel Chan */
795 assert( Chan != NULL );
796 assert( Client != NULL );
797 return Get_Cl2Chan(Chan, Client) != NULL;
798 } /* Channel_IsMemberOf */
802 Channel_Topic( CHANNEL *Chan )
805 assert( Chan != NULL );
806 ret = array_start(&Chan->topic);
807 return ret ? ret : "";
808 } /* Channel_Topic */
814 Channel_TopicTime(CHANNEL *Chan)
816 assert(Chan != NULL);
817 return (unsigned int) Chan->topic_time;
818 } /* Channel_TopicTime */
822 Channel_TopicWho(CHANNEL *Chan)
824 assert(Chan != NULL);
825 return Chan->topic_who;
826 } /* Channel_TopicWho */
830 Channel_CreationTime(CHANNEL *Chan)
832 assert(Chan != NULL);
833 return (unsigned int) Chan->creation_time;
834 } /* Channel_CreationTime */
840 Channel_SetTopic(CHANNEL *Chan, CLIENT *Client, const char *Topic)
843 assert( Chan != NULL );
844 assert( Topic != NULL );
847 if (len < array_bytes(&Chan->topic))
848 array_free(&Chan->topic);
850 if (len >= COMMAND_LEN || !array_copyb(&Chan->topic, Topic, len+1))
851 Log(LOG_WARNING, "could not set new Topic \"%s\" on %s: %s",
852 Topic, Chan->name, strerror(errno));
854 Chan->topic_time = time(NULL);
855 if (Client != NULL && Client_Type(Client) != CLIENT_SERVER)
856 strlcpy(Chan->topic_who, Client_ID(Client),
857 sizeof Chan->topic_who);
859 strlcpy(Chan->topic_who, DEFAULT_TOPIC_ID,
860 sizeof Chan->topic_who);
864 } /* Channel_SetTopic */
868 Channel_SetModes( CHANNEL *Chan, const char *Modes )
870 assert( Chan != NULL );
871 assert( Modes != NULL );
873 strlcpy( Chan->modes, Modes, sizeof( Chan->modes ));
874 } /* Channel_SetModes */
878 Channel_SetKey( CHANNEL *Chan, const char *Key )
880 assert( Chan != NULL );
881 assert( Key != NULL );
883 strlcpy( Chan->key, Key, sizeof( Chan->key ));
884 LogDebug("Channel %s: Key is now \"%s\".", Chan->name, Chan->key );
885 } /* Channel_SetKey */
889 Channel_SetMaxUsers(CHANNEL *Chan, unsigned long Count)
891 assert( Chan != NULL );
893 Chan->maxusers = Count;
894 LogDebug("Channel %s: Member limit is now %lu.", Chan->name, Chan->maxusers );
895 } /* Channel_SetMaxUsers */
899 * Check if a client is allowed to send to a specific channel.
901 * @param Chan The channel to check.
902 * @param From The client that wants to send.
903 * @return true if the client is allowed to send, false otherwise.
906 Can_Send_To_Channel(CHANNEL *Chan, CLIENT *From)
908 bool is_member, has_voice, is_halfop, is_op, is_chanadmin, is_owner;
910 is_member = has_voice = is_halfop = is_op = is_chanadmin = is_owner = false;
912 /* The server itself always can send messages :-) */
913 if (Client_ThisServer() == From)
916 if (Channel_IsMemberOf(Chan, From)) {
918 if (Channel_UserHasMode(Chan, From, 'v'))
920 if (Channel_UserHasMode(Chan, From, 'h'))
922 if (Channel_UserHasMode(Chan, From, 'o'))
924 if (Channel_UserHasMode(Chan, From, 'a'))
926 if (Channel_UserHasMode(Chan, From, 'q'))
931 * Is the client allowed to write to channel?
933 * If channel mode n set: non-members cannot send to channel.
934 * If channel mode m set: need voice.
936 if (Channel_HasMode(Chan, 'n') && !is_member)
939 if (Channel_HasMode(Chan, 'M') && !Client_HasMode(From, 'R')
940 && !Client_HasMode(From, 'o'))
943 if (has_voice || is_halfop || is_op || is_chanadmin || is_owner)
946 if (Channel_HasMode(Chan, 'm'))
949 if (Lists_Check(&Chan->list_excepts, From))
952 return !Lists_Check(&Chan->list_bans, From);
957 Channel_Write(CHANNEL *Chan, CLIENT *From, CLIENT *Client, const char *Command,
958 bool SendErrors, const char *Text)
960 if (!Can_Send_To_Channel(Chan, From)) {
962 return CONNECTED; /* no error, see RFC 2812 */
963 if (Channel_HasMode(Chan, 'M'))
964 return IRC_WriteErrClient(From, ERR_NEEDREGGEDNICK_MSG,
965 Client_ID(From), Channel_Name(Chan));
967 return IRC_WriteErrClient(From, ERR_CANNOTSENDTOCHAN_MSG,
968 Client_ID(From), Channel_Name(Chan));
971 if (Client_Conn(From) > NONE)
972 Conn_UpdateIdle(Client_Conn(From));
974 IRC_WriteStrChannelPrefix(Client, Chan, From, true, "%s %s :%s",
975 Command, Channel_Name(Chan), Text);
981 Channel_Create( const char *Name )
983 /* Create new CHANNEL structure and add it to linked list */
986 assert( Name != NULL );
988 c = (CHANNEL *)malloc( sizeof( CHANNEL ));
991 Log( LOG_EMERG, "Can't allocate memory! [New_Chan]" );
994 memset( c, 0, sizeof( CHANNEL ));
995 strlcpy( c->name, Name, sizeof( c->name ));
996 c->hash = Hash( c->name );
997 c->next = My_Channels;
999 c->creation_time = time(NULL);
1002 LogDebug("Created new channel structure for \"%s\".", Name);
1004 } /* Channel_Create */
1008 Get_Cl2Chan( CHANNEL *Chan, CLIENT *Client )
1012 assert( Chan != NULL );
1013 assert( Client != NULL );
1015 cl2chan = My_Cl2Chan;
1018 if(( cl2chan->channel == Chan ) && ( cl2chan->client == Client )) return cl2chan;
1019 cl2chan = cl2chan->next;
1026 Add_Client( CHANNEL *Chan, CLIENT *Client )
1030 assert( Chan != NULL );
1031 assert( Client != NULL );
1033 /* Create new CL2CHAN structure */
1034 cl2chan = (CL2CHAN *)malloc( sizeof( CL2CHAN ));
1037 Log( LOG_EMERG, "Can't allocate memory! [Add_Client]" );
1040 cl2chan->channel = Chan;
1041 cl2chan->client = Client;
1042 strcpy( cl2chan->modes, "" );
1045 cl2chan->next = My_Cl2Chan;
1046 My_Cl2Chan = cl2chan;
1048 LogDebug("User \"%s\" joined channel \"%s\".", Client_Mask(Client), Chan->name);
1055 Remove_Client( int Type, CHANNEL *Chan, CLIENT *Client, CLIENT *Origin, const char *Reason, bool InformServer )
1057 CL2CHAN *cl2chan, *last_cl2chan;
1060 assert( Chan != NULL );
1061 assert( Client != NULL );
1062 assert( Origin != NULL );
1063 assert( Reason != NULL );
1065 /* Do not inform other servers if the channel is local to this server,
1066 * regardless of what the caller requested! */
1068 InformServer = !Channel_IsLocal(Chan);
1070 last_cl2chan = NULL;
1071 cl2chan = My_Cl2Chan;
1074 if(( cl2chan->channel == Chan ) && ( cl2chan->client == Client )) break;
1075 last_cl2chan = cl2chan;
1076 cl2chan = cl2chan->next;
1078 if( ! cl2chan ) return false;
1080 c = cl2chan->channel;
1081 assert( c != NULL );
1083 /* maintain cl2chan list */
1084 if( last_cl2chan ) last_cl2chan->next = cl2chan->next;
1085 else My_Cl2Chan = cl2chan->next;
1091 /* QUIT: other servers have already been notified,
1092 * see Client_Destroy(); so only inform other clients
1093 * in same channel. */
1094 assert( InformServer == false );
1095 LogDebug("User \"%s\" left channel \"%s\" (%s).",
1096 Client_Mask( Client ), c->name, Reason );
1099 /* User was KICKed: inform other servers (public
1100 * channels) and all users in the channel */
1102 IRC_WriteStrServersPrefix( Client_NextHop( Origin ),
1103 Origin, "KICK %s %s :%s", c->name, Client_ID( Client ), Reason);
1104 IRC_WriteStrChannelPrefix(Client, c, Origin, false, "KICK %s %s :%s",
1105 c->name, Client_ID( Client ), Reason );
1106 if ((Client_Conn(Client) > NONE) &&
1107 (Client_Type(Client) == CLIENT_USER))
1109 IRC_WriteStrClientPrefix(Client, Origin, "KICK %s %s :%s",
1110 c->name, Client_ID( Client ), Reason);
1112 LogDebug("User \"%s\" has been kicked off \"%s\" by \"%s\": %s.",
1113 Client_Mask( Client ), c->name, Client_ID(Origin), Reason);
1116 if (Conf_MorePrivacy)
1120 IRC_WriteStrServersPrefix(Origin, Client, "PART %s :%s", c->name, Reason);
1122 IRC_WriteStrChannelPrefix(Origin, c, Client, false, "PART %s :%s",
1125 if ((Client_Conn(Origin) > NONE) &&
1126 (Client_Type(Origin) == CLIENT_USER))
1128 IRC_WriteStrClientPrefix( Origin, Client, "PART %s :%s", c->name, Reason);
1129 LogDebug("User \"%s\" left channel \"%s\" (%s).",
1130 Client_Mask(Client), c->name, Reason);
1134 /* When channel is empty and is not pre-defined, delete */
1135 if( ! Channel_HasMode( Chan, 'P' ))
1137 if( ! Get_First_Cl2Chan( NULL, Chan )) Delete_Channel( Chan );
1141 } /* Remove_Client */
1145 Channel_AddBan(CHANNEL *c, const char *mask, const char *who )
1147 struct list_head *h = Channel_GetListBans(c);
1148 LogDebug("Adding \"%s\" to \"%s\" ban list", mask, Channel_Name(c));
1149 return Lists_Add(h, mask, time(NULL), who, false);
1154 Channel_AddExcept(CHANNEL *c, const char *mask, const char *who )
1156 struct list_head *h = Channel_GetListExcepts(c);
1157 LogDebug("Adding \"%s\" to \"%s\" exception list", mask, Channel_Name(c));
1158 return Lists_Add(h, mask, time(NULL), who, false);
1163 Channel_AddInvite(CHANNEL *c, const char *mask, bool onlyonce, const char *who )
1165 struct list_head *h = Channel_GetListInvites(c);
1166 LogDebug("Adding \"%s\" to \"%s\" invite list", mask, Channel_Name(c));
1167 return Lists_Add(h, mask, time(NULL), who, onlyonce);
1172 ShowChannelList(struct list_head *head, CLIENT *Client, CHANNEL *Channel,
1173 char *msg, char *msg_end)
1175 struct list_elem *e;
1177 assert (Client != NULL);
1178 assert (Channel != NULL);
1180 e = Lists_GetFirst(head);
1182 if (!IRC_WriteStrClient(Client, msg, Client_ID(Client),
1183 Channel_Name(Channel),
1186 Lists_GetValidity(e)))
1187 return DISCONNECTED;
1188 e = Lists_GetNext(e);
1191 return IRC_WriteStrClient(Client, msg_end, Client_ID(Client),
1192 Channel_Name(Channel));
1197 Channel_ShowBans( CLIENT *Client, CHANNEL *Channel )
1199 struct list_head *h;
1201 assert( Channel != NULL );
1203 h = Channel_GetListBans(Channel);
1204 return ShowChannelList(h, Client, Channel, RPL_BANLIST_MSG,
1205 RPL_ENDOFBANLIST_MSG);
1210 Channel_ShowExcepts( CLIENT *Client, CHANNEL *Channel )
1212 struct list_head *h;
1214 assert( Channel != NULL );
1216 h = Channel_GetListExcepts(Channel);
1217 return ShowChannelList(h, Client, Channel, RPL_EXCEPTLIST_MSG,
1218 RPL_ENDOFEXCEPTLIST_MSG);
1223 Channel_ShowInvites( CLIENT *Client, CHANNEL *Channel )
1225 struct list_head *h;
1227 assert( Channel != NULL );
1229 h = Channel_GetListInvites(Channel);
1230 return ShowChannelList(h, Client, Channel, RPL_INVITELIST_MSG,
1231 RPL_ENDOFINVITELIST_MSG);
1236 * Log a message to the local &SERVER channel, if it exists.
1239 Channel_LogServer(const char *msg)
1244 assert(msg != NULL);
1246 sc = Channel_Search("&SERVER");
1250 c = Client_ThisServer();
1251 Channel_Write(sc, c, c, "PRIVMSG", false, msg);
1252 } /* Channel_LogServer */
1256 Channel_CheckKey(CHANNEL *Chan, CLIENT *Client, const char *Key)
1258 char *file_name, line[COMMAND_LEN], *nick, *pass;
1261 assert(Chan != NULL);
1262 assert(Client != NULL);
1263 assert(Key != NULL);
1265 if (!Channel_HasMode(Chan, 'k'))
1269 if (strcmp(Chan->key, Key) == 0)
1272 file_name = array_start(&Chan->keyfile);
1275 fd = fopen(file_name, "r");
1277 Log(LOG_ERR, "Can't open channel key file \"%s\" for %s: %s",
1278 file_name, Chan->name, strerror(errno));
1282 while (fgets(line, (int)sizeof(line), fd) != NULL) {
1284 if (! (nick = strchr(line, ':')))
1287 if (!Match(line, Client_User(Client)))
1289 if (! (pass = strchr(nick, ':')))
1292 if (!Match(nick, Client_ID(Client)))
1294 if (strcmp(Key, pass) != 0)
1302 } /* Channel_CheckKey */
1306 Get_First_Cl2Chan( CLIENT *Client, CHANNEL *Chan )
1308 return Get_Next_Cl2Chan( My_Cl2Chan, Client, Chan );
1309 } /* Get_First_Cl2Chan */
1313 Get_Next_Cl2Chan( CL2CHAN *Start, CLIENT *Client, CHANNEL *Channel )
1317 assert( Client != NULL || Channel != NULL );
1322 if(( Client ) && ( cl2chan->client == Client )) return cl2chan;
1323 if(( Channel ) && ( cl2chan->channel == Channel )) return cl2chan;
1324 cl2chan = cl2chan->next;
1327 } /* Get_Next_Cl2Chan */
1331 * Remove a channel and free all of its data structures.
1334 Delete_Channel(CHANNEL *Chan)
1336 CHANNEL *chan, *last_chan;
1347 assert(chan != NULL);
1351 /* maintain channel list */
1353 last_chan->next = chan->next;
1355 My_Channels = chan->next;
1357 LogDebug("Freed channel structure for \"%s\".", Chan->name);
1359 } /* Delete_Channel */
1363 Set_KeyFile(CHANNEL *Chan, const char *KeyFile)
1367 assert(Chan != NULL);
1368 assert(KeyFile != NULL);
1370 len = strlen(KeyFile);
1371 if (len < array_bytes(&Chan->keyfile)) {
1372 Log(LOG_INFO, "Channel key file of %s removed.", Chan->name);
1373 array_free(&Chan->keyfile);
1379 if (!array_copyb(&Chan->keyfile, KeyFile, len+1))
1381 "Could not set new channel key file \"%s\" for %s: %s",
1382 KeyFile, Chan->name, strerror(errno));
1384 Log(LOG_INFO|LOG_snotice,
1385 "New local channel key file \"%s\" for %s activated.",
1386 KeyFile, Chan->name);