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 1.18 2002/12/12 12:24:18 alex Exp $";
33 #include "irc-write.h"
36 #include "irc-channel.h"
40 IRC_JOIN( CLIENT *Client, REQUEST *Req )
42 CHAR *channame, *flags, *topic, modes[8];
43 BOOLEAN is_new_chan, is_invited, is_banned;
47 assert( Client != NULL );
48 assert( Req != NULL );
50 /* Falsche Anzahl Parameter? */
51 if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
53 /* Wer ist der Absender? */
54 if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
56 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
58 /* Channel-Namen durchgehen */
60 channame = strtok( Req->argv[0], "," );
65 /* wird der Channel neu angelegt? */
66 if( Channel_Search( channame )) is_new_chan = FALSE;
67 else is_new_chan = TRUE;
69 /* Hat ein Server Channel-User-Modes uebergeben? */
70 if( Client_Type( Client ) == CLIENT_SERVER )
72 /* Channel-Flags extrahieren */
73 flags = strchr( channame, 0x7 );
82 if( Client_Type( Client ) == CLIENT_USER )
84 /* Existiert der Channel bereits, oder wird er im Moment neu erzeugt? */
87 /* Erster User im Channel: Operator-Flag setzen */
92 /* Existierenden Channel suchen */
93 chan = Channel_Search( channame );
94 assert( chan != NULL );
96 is_banned = Lists_CheckBanned( target, chan );
97 is_invited = Lists_CheckInvited( target, chan );
99 /* Testen, ob Client gebanned ist */
100 if(( is_banned == TRUE ) && ( is_invited == FALSE ))
102 /* Client ist gebanned (und nicht invited): */
103 IRC_WriteStrClient( Client, ERR_BANNEDFROMCHAN_MSG, Client_ID( Client ), channame );
105 /* naechsten Namen ermitteln */
106 channame = strtok( NULL, "," );
110 /* Ist der Channel "invite-only"? */
111 if(( strchr( Channel_Modes( chan ), 'i' ) != NULL ) && ( is_invited == FALSE ))
113 /* Channel ist "invite-only" und Client wurde nicht invited: */
114 IRC_WriteStrClient( Client, ERR_INVITEONLYCHAN_MSG, Client_ID( Client ), channame );
116 /* naechsten Namen ermitteln */
117 channame = strtok( NULL, "," );
123 /* Channel joinen (und ggf. anlegen) */
124 if( ! Channel_Join( target, channame ))
126 /* naechsten Namen ermitteln */
127 channame = strtok( NULL, "," );
130 if( ! chan ) chan = Channel_Search( channame );
131 assert( chan != NULL );
133 /* Modes setzen (wenn vorhanden) */
134 while( flags && *flags )
136 Channel_UserModeAdd( chan, target, *flags );
140 /* Wenn persistenter Channel und IRC-Operator: zum Channel-OP machen */
141 if(( strchr( Channel_Modes( chan ), 'P' )) && ( strchr( Client_Modes( target ), 'o' ))) Channel_UserModeAdd( chan, target, 'o' );
143 /* Muessen Modes an andere Server gemeldet werden? */
144 strcpy( &modes[1], Channel_UserModes( chan, target ));
145 if( modes[1] ) modes[0] = 0x7;
146 else modes[0] = '\0';
148 /* An andere Server weiterleiten */
149 IRC_WriteStrServersPrefix( Client, target, "JOIN :%s%s", channame, modes );
151 /* im Channel bekannt machen */
152 IRC_WriteStrChannelPrefix( Client, chan, target, FALSE, "JOIN :%s", channame );
155 /* Modes im Channel bekannt machen */
156 IRC_WriteStrChannelPrefix( Client, chan, target, FALSE, "MODE %s +%s %s", channame, &modes[1], Client_ID( target ));
159 if( Client_Type( Client ) == CLIENT_USER )
161 /* an Client bestaetigen */
162 IRC_WriteStrClientPrefix( Client, target, "JOIN :%s", channame );
164 /* Topic an Client schicken */
165 topic = Channel_Topic( chan );
166 if( *topic ) IRC_WriteStrClient( Client, RPL_TOPIC_MSG, Client_ID( Client ), channame, topic );
168 /* Mitglieder an Client Melden */
169 IRC_Send_NAMES( Client, chan );
170 IRC_WriteStrClient( Client, RPL_ENDOFNAMES_MSG, Client_ID( Client ), Channel_Name( chan ));
173 /* naechsten Namen ermitteln */
174 channame = strtok( NULL, "," );
181 IRC_PART( CLIENT *Client, REQUEST *Req )
186 assert( Client != NULL );
187 assert( Req != NULL );
189 /* Falsche Anzahl Parameter? */
190 if(( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
192 /* Wer ist der Absender? */
193 if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix );
194 else target = Client;
195 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
197 /* Channel-Namen durchgehen */
198 chan = strtok( Req->argv[0], "," );
201 if( ! Channel_Part( target, Client, chan, Req->argc > 1 ? Req->argv[1] : Client_ID( target )))
203 /* naechsten Namen ermitteln */
204 chan = strtok( NULL, "," );
208 /* naechsten Namen ermitteln */
209 chan = strtok( NULL, "," );
216 IRC_TOPIC( CLIENT *Client, REQUEST *Req )
222 assert( Client != NULL );
223 assert( Req != NULL );
225 /* Falsche Anzahl Parameter? */
226 if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
228 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
230 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
232 /* Welcher Channel? */
233 chan = Channel_Search( Req->argv[0] );
234 if( ! chan ) return IRC_WriteStrClient( from, ERR_NOSUCHCHANNEL_MSG, Client_ID( from ), Req->argv[0] );
236 /* Ist der User Mitglied in dem Channel? */
237 if( ! Channel_IsMemberOf( chan, from )) return IRC_WriteStrClient( from, ERR_NOTONCHANNEL_MSG, Client_ID( from ), Req->argv[0] );
242 topic = Channel_Topic( chan );
243 if( *topic ) return IRC_WriteStrClient( from, RPL_TOPIC_MSG, Client_ID( from ), Channel_Name( chan ), topic );
244 else return IRC_WriteStrClient( from, RPL_NOTOPIC_MSG, Client_ID( from ), Channel_Name( chan ));
247 if( strchr( Channel_Modes( chan ), 't' ))
249 /* Topic Lock. Ist der User ein Channel Operator? */
250 if( ! strchr( Channel_UserModes( chan, from ), 'o' )) return IRC_WriteStrClient( from, ERR_CHANOPRIVSNEEDED_MSG, Client_ID( from ), Channel_Name( chan ));
254 Channel_SetTopic( chan, Req->argv[1] );
255 Log( LOG_DEBUG, "User \"%s\" set topic on \"%s\": %s", Client_Mask( from ), Channel_Name( chan ), Req->argv[1][0] ? Req->argv[1] : "<none>" );
257 /* im Channel bekannt machen und an Server weiterleiten */
258 IRC_WriteStrServersPrefix( Client, from, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
259 IRC_WriteStrChannelPrefix( Client, chan, from, FALSE, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
261 if( Client_Type( Client ) == CLIENT_USER ) return IRC_WriteStrClientPrefix( Client, Client, "TOPIC %s :%s", Req->argv[0], Req->argv[1] );
262 else return CONNECTED;
267 IRC_LIST( CLIENT *Client, REQUEST *Req )
271 CLIENT *from, *target;
273 assert( Client != NULL );
274 assert( Req != NULL );
276 /* Falsche Anzahl Parameter? */
277 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
279 if( Req->argc > 0 ) pattern = strtok( Req->argv[0], "," );
282 /* From aus Prefix ermitteln */
283 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
285 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
289 /* an anderen Server forwarden */
290 target = Client_Search( Req->argv[1] );
291 if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] );
293 if( target != Client_ThisServer( ))
295 /* Ok, anderer Server ist das Ziel: forwarden */
296 return IRC_WriteStrClientPrefix( target, from, "LIST %s :%s", from, Req->argv[1] );
302 /* alle Channel durchgehen */
303 chan = Channel_First( );
306 /* Passt die Suchmaske auf diesen Channel? */
307 if( Match( pattern, Channel_Name( chan )))
310 if( ! IRC_WriteStrClient( from, RPL_LIST_MSG, from, Channel_Name( chan ), Channel_MemberCount( chan ), Channel_Topic( chan ))) return DISCONNECTED;
312 chan = Channel_Next( chan );
315 /* naechsten Namen ermitteln */
316 if( Req->argc > 0 ) pattern = strtok( NULL, "," );
320 return IRC_WriteStrClient( from, RPL_LISTEND_MSG, from );
325 IRC_CHANINFO( CLIENT *Client, REQUEST *Req )
331 assert( Client != NULL );
332 assert( Req != NULL );
334 /* Falsche Anzahl Parameter? */
335 if(( Req->argc < 1 ) || ( Req->argc > 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
337 /* From-Server suchen */
338 from = Client_Search( Req->prefix );
339 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
341 /* Channel suchen bzw. erzeugen */
342 chan = Channel_Search( Req->argv[0] );
343 if( ! chan ) chan = Channel_Create( Req->argv[0] );
344 if( ! chan ) return CONNECTED;
346 if( Req->argv[1][0] == '+' )
348 ptr = Channel_Modes( chan );
351 /* OK, es sind noch keine Modes gesetzt */
352 Channel_SetModes( chan, &Req->argv[1][1] );
353 IRC_WriteStrChannelPrefix( Client, chan, from, FALSE, "MODE %s +%s", Req->argv[0], &Req->argv[1][1] );
356 else Log( LOG_WARNING, "CHANNELINFO: invalid MODE format ignored!" );
360 /* Es wurde auch ein Topic mit uebermittelt */
361 ptr = Channel_Topic( chan );
364 /* OK, es ist bisher kein Topic gesetzt */
365 Channel_SetTopic( chan, Req->argv[2] );
366 IRC_WriteStrChannelPrefix( Client, chan, from, FALSE, "TOPIC %s :%s", Req->argv[0], Req->argv[2] );
370 /* an andere Server forwarden */
371 IRC_WriteStrServersPrefixFlag( Client, from, 'C', "CHANINFO %s %s :%s", Req->argv[0], Req->argv[1], Req->argv[2] );