2 * ngIRCd -- The Next Generation IRC Daemon
3 * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
5 * Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen
6 * der GNU General Public License (GPL), wie von der Free Software Foundation
7 * herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2
8 * der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version.
9 * Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
10 * der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS.
12 * $Id: irc-login.c,v 1.2 2002/03/02 00:49:11 alex Exp $
14 * irc-login.c: Anmeldung und Abmeldung im IRC
16 * $Log: irc-login.c,v $
17 * Revision 1.2 2002/03/02 00:49:11 alex
18 * - Bei der USER-Registrierung wird NICK nicht mehr sofort geforwarded,
19 * sondern erst dann, wenn auch ein gueltiges USER empfangen wurde.
21 * Revision 1.1 2002/02/27 23:26:21 alex
22 * - Modul aus irc.c bzw. irc.h ausgegliedert.
39 #include "irc-write.h"
44 #include "irc-login.h"
47 LOCAL BOOLEAN Hello_User( CLIENT *Client );
48 LOCAL VOID Kill_Nick( CHAR *Nick, CHAR *Reason );
51 GLOBAL BOOLEAN IRC_PASS( CLIENT *Client, REQUEST *Req )
53 assert( Client != NULL );
54 assert( Req != NULL );
56 /* Fehler liefern, wenn kein lokaler Client */
57 if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
59 if(( Client_Type( Client ) == CLIENT_UNKNOWN ) && ( Req->argc == 1))
61 /* noch nicht registrierte unbekannte Verbindung */
62 Log( LOG_DEBUG, "Connection %d: got PASS command ...", Client_Conn( Client ));
64 /* Passwort speichern */
65 Client_SetPassword( Client, Req->argv[0] );
67 Client_SetType( Client, CLIENT_GOTPASS );
70 else if((( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER )) && (( Req->argc == 3 ) || ( Req->argc == 4 )))
72 /* noch nicht registrierte Server-Verbindung */
73 Log( LOG_DEBUG, "Connection %d: got PASS command (new server link) ...", Client_Conn( Client ));
75 /* Passwort speichern */
76 Client_SetPassword( Client, Req->argv[0] );
78 Client_SetType( Client, CLIENT_GOTPASSSERVER );
81 else if(( Client_Type( Client ) == CLIENT_UNKNOWN ) || ( Client_Type( Client ) == CLIENT_UNKNOWNSERVER ))
83 /* Falsche Anzahl Parameter? */
84 return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
86 else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
90 GLOBAL BOOLEAN IRC_SERVER( CLIENT *Client, REQUEST *Req )
92 CHAR str[LINE_LEN], *ptr;
93 CLIENT *from, *c, *cl;
99 assert( Client != NULL );
100 assert( Req != NULL );
102 /* Fehler liefern, wenn kein lokaler Client */
103 if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
105 if( Client_Type( Client ) == CLIENT_GOTPASSSERVER )
107 /* Verbindung soll als Server-Server-Verbindung registriert werden */
108 Log( LOG_DEBUG, "Connection %d: got SERVER command (new server link) ...", Client_Conn( Client ));
110 /* Falsche Anzahl Parameter? */
111 if(( Req->argc != 2 ) && ( Req->argc != 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
113 /* Ist dieser Server bei uns konfiguriert? */
114 for( i = 0; i < Conf_Server_Count; i++ ) if( strcasecmp( Req->argv[0], Conf_Server[i].name ) == 0 ) break;
115 if( i >= Conf_Server_Count )
117 /* Server ist nicht konfiguriert! */
118 Log( LOG_ERR, "Connection %d: Server \"%s\" not configured here!", Client_Conn( Client ), Req->argv[0] );
119 Conn_Close( Client_Conn( Client ), NULL, "Server not configured here", TRUE );
122 if( strcmp( Client_Password( Client ), Conf_Server[i].pwd ) != 0 )
124 /* Falsches Passwort */
125 Log( LOG_ERR, "Connection %d: Bad password for server \"%s\"!", Client_Conn( Client ), Req->argv[0] );
126 Conn_Close( Client_Conn( Client ), NULL, "Bad password", TRUE );
130 /* Ist ein Server mit dieser ID bereits registriert? */
131 if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
133 /* Server-Strukturen fuellen ;-) */
134 Client_SetID( Client, Req->argv[0] );
135 Client_SetHops( Client, 1 );
136 Client_SetInfo( Client, Req->argv[Req->argc - 1] );
138 /* Meldet sich der Server bei uns an? */
141 /* Unseren SERVER- und PASS-Befehl senden */
143 if( ! IRC_WriteStrClient( Client, "PASS %s "PASSSERVERADD, Conf_Server[i].pwd )) ok = FALSE;
144 else ok = IRC_WriteStrClient( Client, "SERVER %s 1 :%s", Conf_ServerName, Conf_ServerInfo );
147 Conn_Close( Client_Conn( Client ), "Unexpected server behavior!", NULL, FALSE );
150 Client_SetIntroducer( Client, Client );
151 Client_SetToken( Client, 1 );
153 else Client_SetToken( Client, atoi( Req->argv[1] ));
155 Log( LOG_NOTICE, "Server \"%s\" registered (connection %d, 1 hop - direct link).", Client_ID( Client ), Client_Conn( Client ));
157 Client_SetType( Client, CLIENT_SERVER );
159 /* maximalen Hop Count ermitteln */
164 if( Client_Hops( c ) > max_hops ) max_hops = Client_Hops( c );
165 c = Client_Next( c );
168 /* Alle bisherigen Server dem neuen Server bekannt machen,
169 * die bisherigen Server ueber den neuen informierenn */
170 for( i = 0; i < ( max_hops + 1 ); i++ )
175 if(( Client_Type( c ) == CLIENT_SERVER ) && ( c != Client ) && ( c != Client_ThisServer( )) && ( Client_Hops( c ) == i ))
177 if( Client_Conn( c ) > NONE )
179 /* Dem gefundenen Server gleich den neuen
180 * Server bekannt machen */
181 if( ! IRC_WriteStrClient( c, "SERVER %s %d %d :%s", Client_ID( Client ), Client_Hops( Client ) + 1, Client_MyToken( Client ), Client_Info( Client ))) return DISCONNECTED;
184 /* Den neuen Server ueber den alten informieren */
185 if( ! IRC_WriteStrClientPrefix( Client, Client_Hops( c ) == 1 ? Client_ThisServer( ) : Client_Introducer( c ), "SERVER %s %d %d :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_MyToken( c ), Client_Info( c ))) return DISCONNECTED;
187 c = Client_Next( c );
191 /* alle User dem neuen Server bekannt machen */
195 if( Client_Type( c ) == CLIENT_USER )
197 /* User an neuen Server melden */
198 if( ! IRC_WriteStrClient( Client, "NICK %s %d %s %s %d +%s :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_User( c ), Client_Hostname( c ), Client_MyToken( Client_Introducer( c )), Client_Modes( c ), Client_Info( c ))) return DISCONNECTED;
200 c = Client_Next( c );
203 /* Channels dem neuen Server bekannt machen */
204 chan = Channel_First( );
207 sprintf( str, "NJOIN %s :", Channel_Name( chan ));
209 /* alle Member suchen */
210 cl2chan = Channel_FirstMember( chan );
213 cl = Channel_GetClient( cl2chan );
214 assert( cl != NULL );
216 /* Nick, ggf. mit Modes, anhaengen */
217 if( str[strlen( str ) - 1] != ':' ) strcat( str, "," );
218 if( strchr( Channel_UserModes( chan, cl ), 'v' )) strcat( str, "+" );
219 if( strchr( Channel_UserModes( chan, cl ), 'o' )) strcat( str, "@" );
220 strcat( str, Client_ID( cl ));
222 if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 ))
225 if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED;
226 sprintf( str, "NJOIN %s :", Channel_Name( chan ));
229 cl2chan = Channel_NextMember( chan, cl2chan );
233 if( str[strlen( str ) - 1] != ':')
235 /* Ja; Also senden ... */
236 if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED;
239 /* naechsten Channel suchen */
240 chan = Channel_Next( chan );
245 else if( Client_Type( Client ) == CLIENT_SERVER )
247 /* Neuer Server wird im Netz angekuendigt */
249 /* Falsche Anzahl Parameter? */
250 if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
252 /* Ist ein Server mit dieser ID bereits registriert? */
253 if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
255 /* Ueberfluessige Hostnamen aus Info-Text entfernen */
256 ptr = strchr( Req->argv[3] + 2, '[' );
257 if( ! ptr ) ptr = Req->argv[3];
259 from = Client_GetFromID( Req->prefix );
262 /* Hm, Server, der diesen einfuehrt, ist nicht bekannt!? */
263 Log( LOG_ALERT, "Unknown ID in prefix of SERVER: \"%s\"! (on connection %d)", Req->prefix, Client_Conn( Client ));
264 Conn_Close( Client_Conn( Client ), NULL, "Unknown ID in prefix of SERVER", TRUE );
268 /* Neue Client-Struktur anlegen */
269 c = Client_NewRemoteServer( Client, Req->argv[0], from, atoi( Req->argv[1] ), atoi( Req->argv[2] ), ptr, TRUE );
272 /* Neue Client-Struktur konnte nicht angelegt werden */
273 Log( LOG_ALERT, "Can't create client structure for server! (on connection %d)", Client_Conn( Client ));
274 Conn_Close( Client_Conn( Client ), NULL, "Can't allocate client structure for remote server", TRUE );
278 /* Log-Meldung zusammenbauen und ausgeben */
279 if(( Client_Hops( c ) > 1 ) && ( Req->prefix[0] )) sprintf( str, "connected to %s, ", Client_ID( from ));
280 else strcpy( str, "" );
281 Log( LOG_NOTICE, "Server \"%s\" registered (via %s, %s%d hop%s).", Client_ID( c ), Client_ID( Client ), str, Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
283 /* Andere Server informieren */
284 IRC_WriteStrServersPrefix( Client, from, "SERVER %s %d %d :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_MyToken( c ), Client_Info( c ));
288 else return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
292 GLOBAL BOOLEAN IRC_NJOIN( CLIENT *Client, REQUEST *Req )
294 CHAR *channame, *ptr, modes[8];
295 BOOLEAN is_op, is_voiced;
299 assert( Client != NULL );
300 assert( Req != NULL );
302 if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTEREDSERVER_MSG, Client_ID( Client ));
304 /* Falsche Anzahl Parameter? */
305 if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
307 channame = Req->argv[0];
308 ptr = strtok( Req->argv[1], "," );
311 is_op = is_voiced = FALSE;
313 /* Prefixe abschneiden */
314 while(( *ptr == '@' ) || ( *ptr == '+' ))
316 if( *ptr == '@' ) is_op = TRUE;
317 if( *ptr == '+' ) is_voiced = TRUE;
321 c = Client_GetFromID( ptr );
324 Channel_Join( c, channame );
325 chan = Channel_Search( channame );
326 assert( chan != NULL );
328 if( is_op ) Channel_UserModeAdd( chan, c, 'o' );
329 if( is_voiced ) Channel_UserModeAdd( chan, c, 'v' );
331 /* im Channel bekannt machen */
332 IRC_WriteStrChannelPrefix( Client, chan, c, FALSE, "JOIN :%s", channame );
334 /* Channel-User-Modes setzen */
335 strcpy( modes, Channel_UserModes( chan, c ));
338 /* Modes im Channel bekannt machen */
339 IRC_WriteStrChannelPrefix( Client, chan, Client, FALSE, "MODE %s +%s %s", channame, modes, Client_ID( c ));
342 else Log( LOG_ERR, "Got NJOIN for unknown nick \"%s\" for channel \"%s\"!", ptr, channame );
344 /* naechsten Nick suchen */
345 ptr = strtok( NULL, "," );
348 /* an andere Server weiterleiten */
349 IRC_WriteStrServersPrefix( Client, Client_ThisServer( ), "NJOIN %s :%s", Req->argv[0], Req->argv[1] );
355 GLOBAL BOOLEAN IRC_NICK( CLIENT *Client, REQUEST *Req )
357 CLIENT *intr_c, *target, *c;
360 assert( Client != NULL );
361 assert( Req != NULL );
363 /* Zumindest BitchX sendet NICK-USER in der falschen Reihenfolge. */
365 if( Client_Type( Client ) == CLIENT_UNKNOWN || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTUSER || Client_Type( Client ) == CLIENT_USER || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
367 if( Client_Type( Client ) == CLIENT_UNKNOWN || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_USER || ( Client_Type( Client ) == CLIENT_SERVER && Req->argc == 1 ))
370 /* User-Registrierung bzw. Nick-Aenderung */
372 /* Falsche Anzahl Parameter? */
373 if( Req->argc != 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
375 /* "Ziel-Client" ermitteln */
376 if( Client_Type( Client ) == CLIENT_SERVER )
378 target = Client_GetFromID( Req->prefix );
379 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[0] );
383 /* Ist der Client "restricted"? */
384 if( Client_HasMode( Client, 'r' )) return IRC_WriteStrClient( Client, ERR_RESTRICTED_MSG, Client_ID( Client ));
389 /* Wenn der Client zu seinem eigenen Nick wechseln will, so machen
390 * wir nichts. So macht es das Original und mind. Snak hat probleme,
391 * wenn wir es nicht so machen. Ob es so okay ist? Hm ... */
392 if( strcmp( Client_ID( target ), Req->argv[0] ) == 0 ) return CONNECTED;
395 /* pruefen, ob Nick bereits vergeben. Speziallfall: der Client
396 * will nur die Gross- und Kleinschreibung aendern. Das darf
397 * er natuerlich machen :-) */
398 if( strcasecmp( Client_ID( target ), Req->argv[0] ) != 0 )
400 if( ! Client_CheckNick( target, Req->argv[0] )) return CONNECTED;
403 if(( Client_Type( target ) != CLIENT_USER ) && ( Client_Type( target ) != CLIENT_SERVER ))
406 Log( LOG_DEBUG, "Connection %d: got valid NICK command ...", Client_Conn( Client ));
408 /* Client-Nick registrieren */
409 Client_SetID( target, Req->argv[0] );
411 /* schon ein USER da? Dann registrieren! */
412 if( Client_Type( Client ) == CLIENT_GOTUSER ) return Hello_User( Client );
413 else Client_SetType( Client, CLIENT_GOTNICK );
418 Log( LOG_INFO, "User \"%s\" changed nick: \"%s\" -> \"%s\".", Client_Mask( target ), Client_ID( target ), Req->argv[0] );
420 /* alle betroffenen User und Server ueber Nick-Aenderung informieren */
421 if( Client_Type( Client ) == CLIENT_USER ) IRC_WriteStrClientPrefix( Client, Client, "NICK :%s", Req->argv[0] );
422 IRC_WriteStrServersPrefix( Client, target, "NICK :%s", Req->argv[0] );
423 IRC_WriteStrRelatedPrefix( target, target, FALSE, "NICK :%s", Req->argv[0] );
425 /* neuen Client-Nick speichern */
426 Client_SetID( target, Req->argv[0] );
431 else if( Client_Type( Client ) == CLIENT_SERVER )
433 /* Server fuehrt neuen Client ein */
435 /* Falsche Anzahl Parameter? */
436 if( Req->argc != 7 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
438 /* Nick ueberpruefen */
439 c = Client_GetFromID( Req->argv[0] );
442 /* Der neue Nick ist auf diesem Server bereits registriert:
443 * sowohl der neue, als auch der alte Client muessen nun
444 * disconnectiert werden. */
445 Log( LOG_ERR, "Server %s introduces already registered nick \"%s\"!", Client_ID( Client ), Req->argv[0] );
446 Kill_Nick( Req->argv[0], "Nick collision" );
450 /* Server, zu dem der Client connectiert ist, suchen */
451 intr_c = Client_GetFromToken( Client, atoi( Req->argv[4] ));
454 Log( LOG_ERR, "Server %s introduces nick \"%s\" on unknown server!?", Client_ID( Client ), Req->argv[0] );
455 Kill_Nick( Req->argv[0], "Unknown server" );
459 /* Neue Client-Struktur anlegen */
460 c = Client_NewRemoteUser( intr_c, Req->argv[0], atoi( Req->argv[1] ), Req->argv[2], Req->argv[3], atoi( Req->argv[4] ), Req->argv[5] + 1, Req->argv[6], TRUE );
463 /* Eine neue Client-Struktur konnte nicht angelegt werden.
464 * Der Client muss disconnectiert werden, damit der Netz-
465 * status konsistent bleibt. */
466 Log( LOG_ALERT, "Can't create client structure! (on connection %d)", Client_Conn( Client ));
467 Kill_Nick( Req->argv[0], "Server error" );
471 modes = Client_Modes( c );
472 if( *modes ) Log( LOG_DEBUG, "User \"%s\" (+%s) registered (via %s, on %s, %d hop%s).", Client_Mask( c ), modes, Client_ID( Client ), Client_ID( intr_c ), Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
473 else Log( LOG_DEBUG, "User \"%s\" registered (via %s, on %s, %d hop%s).", Client_Mask( c ), Client_ID( Client ), Client_ID( intr_c ), Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
475 /* Andere Server, ausser dem Introducer, informieren */
476 IRC_WriteStrServersPrefix( Client, Client, "NICK %s %d %s %s %d %s :%s", Req->argv[0], atoi( Req->argv[1] ) + 1, Req->argv[2], Req->argv[3], Client_MyToken( intr_c ), Req->argv[5], Req->argv[6] );
480 else return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
484 GLOBAL BOOLEAN IRC_USER( CLIENT *Client, REQUEST *Req )
486 assert( Client != NULL );
487 assert( Req != NULL );
490 if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS || Client_Type( Client ) == CLIENT_UNKNOWN )
492 if( Client_Type( Client ) == CLIENT_GOTNICK || Client_Type( Client ) == CLIENT_GOTPASS )
495 /* Falsche Anzahl Parameter? */
496 if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
498 Client_SetUser( Client, Req->argv[0], FALSE );
499 Client_SetInfo( Client, Req->argv[3] );
501 Log( LOG_DEBUG, "Connection %d: got valid USER command ...", Client_Conn( Client ));
502 if( Client_Type( Client ) == CLIENT_GOTNICK ) return Hello_User( Client );
503 else Client_SetType( Client, CLIENT_GOTUSER );
506 else if( Client_Type( Client ) == CLIENT_USER || Client_Type( Client ) == CLIENT_SERVER || Client_Type( Client ) == CLIENT_SERVICE )
508 return IRC_WriteStrClient( Client, ERR_ALREADYREGISTRED_MSG, Client_ID( Client ));
510 else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
514 GLOBAL BOOLEAN IRC_QUIT( CLIENT *Client, REQUEST *Req )
518 assert( Client != NULL );
519 assert( Req != NULL );
521 if(( Client_Type( Client ) == CLIENT_USER ) || ( Client_Type( Client ) == CLIENT_SERVICE ))
525 /* Falsche Anzahl Parameter? */
526 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
528 if( Req->argc == 0 ) Conn_Close( Client_Conn( Client ), "Got QUIT command.", NULL, TRUE );
529 else Conn_Close( Client_Conn( Client ), "Got QUIT command.", Req->argv[0], TRUE );
533 else if ( Client_Type( Client ) == CLIENT_SERVER )
537 /* Falsche Anzahl Parameter? */
538 if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
540 target = Client_Search( Req->prefix );
543 Log( LOG_ERR, "Got QUIT from %s for unknown client!?", Client_ID( Client ));
547 if( Req->argc == 0 ) Client_Destroy( target, "Got QUIT command.", NULL );
548 else Client_Destroy( target, "Got QUIT command.", Req->argv[0] );
552 else return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
556 GLOBAL BOOLEAN IRC_SQUIT( CLIENT *Client, REQUEST *Req )
559 CHAR msg[LINE_LEN + 64];
561 assert( Client != NULL );
562 assert( Req != NULL );
564 /* SQUIT ist nur fuer Server erlaubt */
565 if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
567 /* Falsche Anzahl Parameter? */
568 if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
570 Log( LOG_DEBUG, "Got SQUIT from %s for \"%s\": \"%s\" ...", Client_ID( Client ), Req->argv[0], Req->argv[1] );
572 /* SQUIT an alle Server weiterleiten */
573 IRC_WriteStrServers( Client, "SQUIT %s :%s", Req->argv[0], Req->argv[1] );
575 target = Client_GetFromID( Req->argv[0] );
578 Log( LOG_ERR, "Got SQUIT from %s for unknown server \"%s\"!?", Client_ID( Client ), Req->argv[0] );
582 if( Req->argv[1][0] )
584 if( strlen( Req->argv[1] ) > LINE_LEN ) Req->argv[1][LINE_LEN] = '\0';
585 sprintf( msg, "%s (SQUIT from %s).", Req->argv[1], Client_ID( Client ));
587 else sprintf( msg, "Got SQUIT from %s.", Client_ID( Client ));
589 if( Client_Conn( target ) > NONE )
591 /* dieser Server hat die Connection */
592 if( Req->argv[1][0] ) Conn_Close( Client_Conn( target ), msg, Req->argv[1], TRUE );
593 else Conn_Close( Client_Conn( target ), msg, NULL, TRUE );
598 /* Verbindung hielt anderer Server */
599 Client_Destroy( target, msg, Req->argv[1] );
605 GLOBAL BOOLEAN IRC_PING( CLIENT *Client, REQUEST *Req )
607 CLIENT *target, *from;
609 assert( Client != NULL );
610 assert( Req != NULL );
612 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
614 /* Falsche Anzahl Parameter? */
615 if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NOORIGIN_MSG, Client_ID( Client ));
616 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
620 /* es wurde ein Ziel-Client angegeben */
621 target = Client_GetFromID( Req->argv[1] );
622 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] );
623 if( target != Client_ThisServer( ))
626 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
628 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
629 return IRC_WriteStrClientPrefix( target, from, "PING %s :%s", Client_ID( from ), Req->argv[1] );
633 Log( LOG_DEBUG, "Connection %d: got PING, sending PONG ...", Client_Conn( Client ));
634 return IRC_WriteStrClient( Client, "PONG %s :%s", Client_ID( Client_ThisServer( )), Client_ID( Client ));
638 GLOBAL BOOLEAN IRC_PONG( CLIENT *Client, REQUEST *Req )
640 CLIENT *target, *from;
642 assert( Client != NULL );
643 assert( Req != NULL );
645 if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
647 /* Falsche Anzahl Parameter? */
648 if( Req->argc < 1 ) return IRC_WriteStrClient( Client, ERR_NOORIGIN_MSG, Client_ID( Client ));
649 if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
654 target = Client_GetFromID( Req->argv[1] );
655 if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] );
656 if( target != Client_ThisServer( ))
659 if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_GetFromID( Req->prefix );
661 if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix );
662 return IRC_WriteStrClientPrefix( target, from, "PONG %s :%s", Client_ID( from ), Req->argv[1] );
666 /* Der Connection-Timestamp wurde schon beim Lesen aus dem Socket
667 * aktualisiert, daher muss das hier nicht mehr gemacht werden. */
669 if( Client_Conn( Client ) > NONE ) Log( LOG_DEBUG, "Connection %d: received PONG. Lag: %ld seconds.", Client_Conn( Client ), time( NULL ) - Conn_LastPing( Client_Conn( Client )));
670 else Log( LOG_DEBUG, "Connection %d: received PONG.", Client_Conn( Client ));
676 LOCAL BOOLEAN Hello_User( CLIENT *Client )
678 assert( Client != NULL );
680 /* Passwort ueberpruefen */
681 if( strcmp( Client_Password( Client ), Conf_ServerPwd ) != 0 )
683 /* Falsches Passwort */
684 Log( LOG_ERR, "User \"%s\" rejected (connection %d): Bad password!", Client_Mask( Client ), Client_Conn( Client ));
685 Conn_Close( Client_Conn( Client ), NULL, "Bad password", TRUE );
689 Log( LOG_NOTICE, "User \"%s\" registered (connection %d).", Client_Mask( Client ), Client_Conn( Client ));
691 /* Andere Server informieren */
692 IRC_WriteStrServers( NULL, "NICK %s 1 %s %s 1 +%s :%s", Client_ID( Client ), Client_User( Client ), Client_Hostname( Client ), Client_Modes( Client ), Client_Info( Client ));
694 if( ! IRC_WriteStrClient( Client, RPL_WELCOME_MSG, Client_ID( Client ), Client_Mask( Client ))) return FALSE;
695 if( ! IRC_WriteStrClient( Client, RPL_YOURHOST_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE;
696 if( ! IRC_WriteStrClient( Client, RPL_CREATED_MSG, Client_ID( Client ), NGIRCd_StartStr )) return FALSE;
697 if( ! IRC_WriteStrClient( Client, RPL_MYINFO_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( )))) return FALSE;
699 Client_SetType( Client, CLIENT_USER );
701 if( ! IRC_Send_LUSERS( Client )) return DISCONNECTED;
702 if( ! IRC_Show_MOTD( Client )) return DISCONNECTED;
708 LOCAL VOID Kill_Nick( CHAR *Nick, CHAR *Reason )
712 assert( Nick != NULL );
713 assert( Reason != NULL );
715 Log( LOG_ERR, "User(s) with nick \"%s\" will be disconnected: %s", Nick, Reason );
717 /* andere Server benachrichtigen */
718 IRC_WriteStrServers( NULL, "KILL %s :%s", Nick, Reason );
720 /* Ggf. einen eigenen Client toeten */
721 c = Client_GetFromID( Nick );
722 if( c && ( Client_Conn( c ) != NONE )) Conn_Close( Client_Conn( c ), NULL, Reason, TRUE );