2 * ngIRCd -- The Next Generation IRC Daemon
3 * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
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.
11 * IRC channel commands
17 static char UNUSED id[] = "$Id: irc-channel.c,v 1.19 2002/12/13 17:53:32 alex Exp $";
33 #include "irc-write.h"
38 #include "irc-channel.h"
42 IRC_JOIN( CLIENT *Client, REQUEST *Req )
44 CHAR *channame, *flags, *topic, modes[8];
45 BOOLEAN is_new_chan, is_invited, is_banned;
49 assert( Client != NULL );
50 assert( Req != NULL );
52 /* Falsche Anzahl Parameter? */
53 if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
55 /* Wer ist der Absender? */
56 if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
58 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
60 /* Channel-Namen durchgehen */
62 channame = strtok( Req->argv[0], "," );
67 /* wird der Channel neu angelegt? */
68 if( Channel_Search( channame )) is_new_chan = FALSE;
69 else is_new_chan = TRUE;
71 /* Hat ein Server Channel-User-Modes uebergeben? */
72 if( Client_Type( Client ) == CLIENT_SERVER )
74 /* Channel-Flags extrahieren */
75 flags = strchr( channame, 0x7 );
84 if( Client_Type( Client ) == CLIENT_USER )
86 /* Existiert der Channel bereits, oder wird er im Moment neu erzeugt? */
89 /* Erster User im Channel: Operator-Flag setzen */
94 /* Existierenden Channel suchen */
95 chan = Channel_Search( channame );
96 assert( chan != NULL );
98 /* Test if the user has reached his maximum channel count */
99 if( Client_Type( Client ) == CLIENT_USER )
101 if(( Conf_MaxJoins > 0 ) && ( Channel_CountForUser( chan, Client ) > Conf_MaxJoins ))
103 IRC_WriteStrClient( Client, ERR_TOOMANYCHANNELS_MSG, Client_ID( Client ), channame );
109 is_banned = Lists_CheckBanned( target, chan );
110 is_invited = Lists_CheckInvited( target, chan );
112 /* Testen, ob Client gebanned ist */
113 if(( is_banned == TRUE ) && ( is_invited == FALSE ))
115 /* Client ist gebanned (und nicht invited): */
116 IRC_WriteStrClient( Client, ERR_BANNEDFROMCHAN_MSG, Client_ID( Client ), channame );
118 /* naechsten Namen ermitteln */
119 channame = strtok( NULL, "," );
123 /* Ist der Channel "invite-only"? */
124 if(( strchr( Channel_Modes( chan ), 'i' ) != NULL ) && ( is_invited == FALSE ))
126 /* Channel ist "invite-only" und Client wurde nicht invited: */
127 IRC_WriteStrClient( Client, ERR_INVITEONLYCHAN_MSG, Client_ID( Client ), channame );
129 /* naechsten Namen ermitteln */
130 channame = strtok( NULL, "," );
136 /* Channel joinen (und ggf. anlegen) */
137 if( ! Channel_Join( target, channame ))
139 /* naechsten Namen ermitteln */
140 channame = strtok( NULL, "," );
143 if( ! chan ) chan = Channel_Search( channame );
144 assert( chan != NULL );
146 /* Modes setzen (wenn vorhanden) */
147 while( flags && *flags )
149 Channel_UserModeAdd( chan, target, *flags );
153 /* Wenn persistenter Channel und IRC-Operator: zum Channel-OP machen */
154 if(( strchr( Channel_Modes( chan ), 'P' )) && ( strchr( Client_Modes( target ), 'o' ))) Channel_UserModeAdd( chan, target, 'o' );
156 /* Muessen Modes an andere Server gemeldet werden? */
157 strcpy( &modes[1], Channel_UserModes( chan, target ));
158 if( modes[1] ) modes[0] = 0x7;
159 else modes[0] = '\0';
161 /* An andere Server weiterleiten */
162 IRC_WriteStrServersPrefix( Client, target, "JOIN :%s%s", channame, modes );
164 /* im Channel bekannt machen */
165 IRC_WriteStrChannelPrefix( Client, chan, target, FALSE, "JOIN :%s", channame );
168 /* Modes im Channel bekannt machen */
169 IRC_WriteStrChannelPrefix( Client, chan, target, FALSE, "MODE %s +%s %s", channame, &modes[1], Client_ID( target ));
172 if( Client_Type( Client ) == CLIENT_USER )
174 /* an Client bestaetigen */
175 IRC_WriteStrClientPrefix( Client, target, "JOIN :%s", channame );
177 /* Topic an Client schicken */
178 topic = Channel_Topic( chan );
179 if( *topic ) IRC_WriteStrClient( Client, RPL_TOPIC_MSG, Client_ID( Client ), channame, topic );
181 /* Mitglieder an Client Melden */
182 IRC_Send_NAMES( Client, chan );
183 IRC_WriteStrClient( Client, RPL_ENDOFNAMES_MSG, Client_ID( Client ), Channel_Name( chan ));
186 /* naechsten Namen ermitteln */
187 channame = strtok( NULL, "," );
194 IRC_PART( CLIENT *Client, REQUEST *Req )
199 assert( Client != NULL );
200 assert( Req != NULL );
202 /* Falsche Anzahl Parameter? */
203 if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
205 /* Wer ist der Absender? */
206 if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
207 else target = Client;
208 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
210 /* Channel-Namen durchgehen */
211 chan = strtok( Req->argv[0], "," );
214 if( ! Channel_Part( target, Client, chan, Req->argc > 1 ? Req->argv[1] : Client_ID( target )))
216 /* naechsten Namen ermitteln */
217 chan = strtok( NULL, "," );
221 /* naechsten Namen ermitteln */
222 chan = strtok( NULL, "," );
229 IRC_TOPIC( CLIENT *Client, REQUEST *Req )
235 assert( Client != NULL );
236 assert( Req != NULL );
238 /* Falsche Anzahl Parameter? */
239 if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
241 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
243 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
245 /* Welcher Channel? */
246 chan = Channel_Search( Req->argv[0] );
247 if( ! chan ) return IRC_WriteStrClient( from, ERR_NOSUCHCHANNEL_MSG, Client_ID( from ), Req->argv[0] );
249 /* Ist der User Mitglied in dem Channel? */
250 if( ! Channel_IsMemberOf( chan, from )) return IRC_WriteStrClient( from, ERR_NOTONCHANNEL_MSG, Client_ID( from ), Req->argv[0] );
255 topic = Channel_Topic( chan );
256 if( *topic ) return IRC_WriteStrClient( from, RPL_TOPIC_MSG, Client_ID( from ), Channel_Name( chan ), topic );
257 else return IRC_WriteStrClient( from, RPL_NOTOPIC_MSG, Client_ID( from ), Channel_Name( chan ));
260 if( strchr( Channel_Modes( chan ), 't' ))
262 /* Topic Lock. Ist der User ein Channel Operator? */
263 if( ! strchr( Channel_UserModes( chan, from ), 'o' )) return IRC_WriteStrClient( from, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( from ), Channel_Name( chan ));
267 Channel_SetTopic( chan, Req->argv[1] );
268 Log( LOG_DEBUG, "User \"%s\" set topic on \"%s\": %s", Client_Mask( from ), Channel_Name( chan ), Req->argv[1][0] ? Req->argv[1] : "<none>" );
270 /* im Channel bekannt machen und an Server weiterleiten */
271 IRC_WriteStrServersPrefix( Client, from, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
272 IRC_WriteStrChannelPrefix( Client, chan, from, FALSE, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
274 if( Client_Type( Client ) == CLIENT_USER ) return IRC_WriteStrClientPrefix( Client, Client, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
275 else return CONNECTED;
280 IRC_LIST( CLIENT *Client, REQUEST *Req )
284 CLIENT *from, *target;
286 assert( Client != NULL );
287 assert( Req != NULL );
289 /* Falsche Anzahl Parameter? */
290 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
292 if( Req->argc > 0 ) pattern = strtok( Req->argv[0], "," );
295 /* From aus Prefix ermitteln */
296 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
298 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
302 /* an anderen Server forwarden */
303 target = Client_Search( Req->argv[1] );
304 if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] );
306 if( target != Client_ThisServer( ))
308 /* Ok, anderer Server ist das Ziel: forwarden */
309 return IRC_WriteStrClientPrefix( target, from, "LIST %s :%s", from, Req->argv[1] );
315 /* alle Channel durchgehen */
316 chan = Channel_First( );
319 /* Passt die Suchmaske auf diesen Channel? */
320 if( Match( pattern, Channel_Name( chan )))
323 if( ! IRC_WriteStrClient( from, RPL_LIST_MSG, from, Channel_Name( chan ), Channel_MemberCount( chan ), Channel_Topic( chan ))) return DISCONNECTED;
325 chan = Channel_Next( chan );
328 /* naechsten Namen ermitteln */
329 if( Req->argc > 0 ) pattern = strtok( NULL, "," );
333 return IRC_WriteStrClient( from, RPL_LISTEND_MSG, from );
338 IRC_CHANINFO( CLIENT *Client, REQUEST *Req )
344 assert( Client != NULL );
345 assert( Req != NULL );
347 /* Falsche Anzahl Parameter? */
348 if(( Req->argc < 1 ) || ( Req->argc > 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
350 /* From-Server suchen */
351 from = Client_Search( Req->prefix );
352 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
354 /* Channel suchen bzw. erzeugen */
355 chan = Channel_Search( Req->argv[0] );
356 if( ! chan ) chan = Channel_Create( Req->argv[0] );
357 if( ! chan ) return CONNECTED;
359 if( Req->argv[1][0] == '+' )
361 ptr = Channel_Modes( chan );
364 /* OK, es sind noch keine Modes gesetzt */
365 Channel_SetModes( chan, &Req->argv[1][1] );
366 IRC_WriteStrChannelPrefix( Client, chan, from, FALSE, "MODE %s +%s", Req->argv[0], &Req->argv[1][1] );
369 else Log( LOG_WARNING, "CHANNELINFO: invalid MODE format ignored!" );
373 /* Es wurde auch ein Topic mit uebermittelt */
374 ptr = Channel_Topic( chan );
377 /* OK, es ist bisher kein Topic gesetzt */
378 Channel_SetTopic( chan, Req->argv[2] );
379 IRC_WriteStrChannelPrefix( Client, chan, from, FALSE, "TOPIC %s :%s", Req->argv[0], Req->argv[2] );
383 /* an andere Server forwarden */
384 IRC_WriteStrServersPrefixFlag( Client, from, 'C', "CHANINFO %s %s :%s", Req->argv[0], Req->argv[1], Req->argv[2] );