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 1.20 2002/12/14 13:23:11 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 /* Test if the user has reached his maximum channel count */
87 if( Client_Type( Client ) == CLIENT_USER )
89 if(( Conf_MaxJoins > 0 ) && ( Channel_CountForUser( Client ) >= Conf_MaxJoins ))
91 IRC_WriteStrClient( Client, ERR_TOOMANYCHANNELS_MSG, Client_ID( Client ), channame );
96 /* Existiert der Channel bereits, oder wird er im Moment neu erzeugt? */
99 /* Erster User im Channel: Operator-Flag setzen */
104 /* Existierenden Channel suchen */
105 chan = Channel_Search( channame );
106 assert( chan != NULL );
108 is_banned = Lists_CheckBanned( target, chan );
109 is_invited = Lists_CheckInvited( target, chan );
111 /* Testen, ob Client gebanned ist */
112 if(( is_banned == TRUE ) && ( is_invited == FALSE ))
114 /* Client ist gebanned (und nicht invited): */
115 IRC_WriteStrClient( Client, ERR_BANNEDFROMCHAN_MSG, Client_ID( Client ), channame );
117 /* naechsten Namen ermitteln */
118 channame = strtok( NULL, "," );
122 /* Ist der Channel "invite-only"? */
123 if(( strchr( Channel_Modes( chan ), 'i' ) != NULL ) && ( is_invited == FALSE ))
125 /* Channel ist "invite-only" und Client wurde nicht invited: */
126 IRC_WriteStrClient( Client, ERR_INVITEONLYCHAN_MSG, Client_ID( Client ), channame );
128 /* naechsten Namen ermitteln */
129 channame = strtok( NULL, "," );
135 /* Channel joinen (und ggf. anlegen) */
136 if( ! Channel_Join( target, channame ))
138 /* naechsten Namen ermitteln */
139 channame = strtok( NULL, "," );
142 if( ! chan ) chan = Channel_Search( channame );
143 assert( chan != NULL );
145 /* Modes setzen (wenn vorhanden) */
146 while( flags && *flags )
148 Channel_UserModeAdd( chan, target, *flags );
152 /* Wenn persistenter Channel und IRC-Operator: zum Channel-OP machen */
153 if(( strchr( Channel_Modes( chan ), 'P' )) && ( strchr( Client_Modes( target ), 'o' ))) Channel_UserModeAdd( chan, target, 'o' );
155 /* Muessen Modes an andere Server gemeldet werden? */
156 strcpy( &modes[1], Channel_UserModes( chan, target ));
157 if( modes[1] ) modes[0] = 0x7;
158 else modes[0] = '\0';
160 /* An andere Server weiterleiten */
161 IRC_WriteStrServersPrefix( Client, target, "JOIN :%s%s", channame, modes );
163 /* im Channel bekannt machen */
164 IRC_WriteStrChannelPrefix( Client, chan, target, FALSE, "JOIN :%s", channame );
167 /* Modes im Channel bekannt machen */
168 IRC_WriteStrChannelPrefix( Client, chan, target, FALSE, "MODE %s +%s %s", channame, &modes[1], Client_ID( target ));
171 if( Client_Type( Client ) == CLIENT_USER )
173 /* an Client bestaetigen */
174 IRC_WriteStrClientPrefix( Client, target, "JOIN :%s", channame );
176 /* Topic an Client schicken */
177 topic = Channel_Topic( chan );
178 if( *topic ) IRC_WriteStrClient( Client, RPL_TOPIC_MSG, Client_ID( Client ), channame, topic );
180 /* Mitglieder an Client Melden */
181 IRC_Send_NAMES( Client, chan );
182 IRC_WriteStrClient( Client, RPL_ENDOFNAMES_MSG, Client_ID( Client ), Channel_Name( chan ));
185 /* naechsten Namen ermitteln */
186 channame = strtok( NULL, "," );
193 IRC_PART( CLIENT *Client, REQUEST *Req )
198 assert( Client != NULL );
199 assert( Req != NULL );
201 /* Falsche Anzahl Parameter? */
202 if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
204 /* Wer ist der Absender? */
205 if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
206 else target = Client;
207 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
209 /* Channel-Namen durchgehen */
210 chan = strtok( Req->argv[0], "," );
213 if( ! Channel_Part( target, Client, chan, Req->argc > 1 ? Req->argv[1] : Client_ID( target )))
215 /* naechsten Namen ermitteln */
216 chan = strtok( NULL, "," );
220 /* naechsten Namen ermitteln */
221 chan = strtok( NULL, "," );
228 IRC_TOPIC( CLIENT *Client, REQUEST *Req )
234 assert( Client != NULL );
235 assert( Req != NULL );
237 /* Falsche Anzahl Parameter? */
238 if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
240 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
242 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
244 /* Welcher Channel? */
245 chan = Channel_Search( Req->argv[0] );
246 if( ! chan ) return IRC_WriteStrClient( from, ERR_NOSUCHCHANNEL_MSG, Client_ID( from ), Req->argv[0] );
248 /* Ist der User Mitglied in dem Channel? */
249 if( ! Channel_IsMemberOf( chan, from )) return IRC_WriteStrClient( from, ERR_NOTONCHANNEL_MSG, Client_ID( from ), Req->argv[0] );
254 topic = Channel_Topic( chan );
255 if( *topic ) return IRC_WriteStrClient( from, RPL_TOPIC_MSG, Client_ID( from ), Channel_Name( chan ), topic );
256 else return IRC_WriteStrClient( from, RPL_NOTOPIC_MSG, Client_ID( from ), Channel_Name( chan ));
259 if( strchr( Channel_Modes( chan ), 't' ))
261 /* Topic Lock. Ist der User ein Channel Operator? */
262 if( ! strchr( Channel_UserModes( chan, from ), 'o' )) return IRC_WriteStrClient( from, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( from ), Channel_Name( chan ));
266 Channel_SetTopic( chan, Req->argv[1] );
267 Log( LOG_DEBUG, "User \"%s\" set topic on \"%s\": %s", Client_Mask( from ), Channel_Name( chan ), Req->argv[1][0] ? Req->argv[1] : "<none>" );
269 /* im Channel bekannt machen und an Server weiterleiten */
270 IRC_WriteStrServersPrefix( Client, from, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
271 IRC_WriteStrChannelPrefix( Client, chan, from, FALSE, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
273 if( Client_Type( Client ) == CLIENT_USER ) return IRC_WriteStrClientPrefix( Client, Client, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
274 else return CONNECTED;
279 IRC_LIST( CLIENT *Client, REQUEST *Req )
283 CLIENT *from, *target;
285 assert( Client != NULL );
286 assert( Req != NULL );
288 /* Falsche Anzahl Parameter? */
289 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
291 if( Req->argc > 0 ) pattern = strtok( Req->argv[0], "," );
294 /* From aus Prefix ermitteln */
295 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
297 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
301 /* an anderen Server forwarden */
302 target = Client_Search( Req->argv[1] );
303 if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] );
305 if( target != Client_ThisServer( ))
307 /* Ok, anderer Server ist das Ziel: forwarden */
308 return IRC_WriteStrClientPrefix( target, from, "LIST %s :%s", from, Req->argv[1] );
314 /* alle Channel durchgehen */
315 chan = Channel_First( );
318 /* Passt die Suchmaske auf diesen Channel? */
319 if( Match( pattern, Channel_Name( chan )))
322 if( ! IRC_WriteStrClient( from, RPL_LIST_MSG, from, Channel_Name( chan ), Channel_MemberCount( chan ), Channel_Topic( chan ))) return DISCONNECTED;
324 chan = Channel_Next( chan );
327 /* naechsten Namen ermitteln */
328 if( Req->argc > 0 ) pattern = strtok( NULL, "," );
332 return IRC_WriteStrClient( from, RPL_LISTEND_MSG, from );
337 IRC_CHANINFO( CLIENT *Client, REQUEST *Req )
343 assert( Client != NULL );
344 assert( Req != NULL );
346 /* Falsche Anzahl Parameter? */
347 if(( Req->argc < 1 ) || ( Req->argc > 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
349 /* From-Server suchen */
350 from = Client_Search( Req->prefix );
351 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
353 /* Channel suchen bzw. erzeugen */
354 chan = Channel_Search( Req->argv[0] );
355 if( ! chan ) chan = Channel_Create( Req->argv[0] );
356 if( ! chan ) return CONNECTED;
358 if( Req->argv[1][0] == '+' )
360 ptr = Channel_Modes( chan );
363 /* OK, es sind noch keine Modes gesetzt */
364 Channel_SetModes( chan, &Req->argv[1][1] );
365 IRC_WriteStrChannelPrefix( Client, chan, from, FALSE, "MODE %s +%s", Req->argv[0], &Req->argv[1][1] );
368 else Log( LOG_WARNING, "CHANNELINFO: invalid MODE format ignored!" );
372 /* Es wurde auch ein Topic mit uebermittelt */
373 ptr = Channel_Topic( chan );
376 /* OK, es ist bisher kein Topic gesetzt */
377 Channel_SetTopic( chan, Req->argv[2] );
378 IRC_WriteStrChannelPrefix( Client, chan, from, FALSE, "TOPIC %s :%s", Req->argv[0], Req->argv[2] );
382 /* an andere Server forwarden */
383 IRC_WriteStrServersPrefixFlag( Client, from, 'C', "CHANINFO %s %s :%s", Req->argv[0], Req->argv[1], Req->argv[2] );