2 2ee05c9a 2002-03-03 alex * ngIRCd -- The Next Generation IRC Daemon
3 2ee05c9a 2002-03-03 alex * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
5 2ee05c9a 2002-03-03 alex * Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen
6 2ee05c9a 2002-03-03 alex * der GNU General Public License (GPL), wie von der Free Software Foundation
7 2ee05c9a 2002-03-03 alex * herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2
8 2ee05c9a 2002-03-03 alex * der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version.
9 2ee05c9a 2002-03-03 alex * Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
10 2ee05c9a 2002-03-03 alex * der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS.
12 bc4ed226 2002-03-25 alex * $Id: irc-server.c,v 1.7 2002/03/25 17:12:22 alex Exp $
14 2ee05c9a 2002-03-03 alex * irc-server.c: IRC-Befehle fuer Server-Links
18 ca33cbda 2002-03-12 alex #include "portab.h"
20 ca33cbda 2002-03-12 alex #include "imp.h"
21 2ee05c9a 2002-03-03 alex #include <assert.h>
22 2ee05c9a 2002-03-03 alex #include <stdio.h>
23 2ee05c9a 2002-03-03 alex #include <stdlib.h>
24 2ee05c9a 2002-03-03 alex #include <string.h>
26 2ee05c9a 2002-03-03 alex #include "conf.h"
27 2ee05c9a 2002-03-03 alex #include "irc-write.h"
28 2ee05c9a 2002-03-03 alex #include "log.h"
29 2ee05c9a 2002-03-03 alex #include "messages.h"
31 ca33cbda 2002-03-12 alex #include "exp.h"
32 2ee05c9a 2002-03-03 alex #include "irc-server.h"
35 2ee05c9a 2002-03-03 alex GLOBAL BOOLEAN IRC_SERVER( CLIENT *Client, REQUEST *Req )
37 2ee05c9a 2002-03-03 alex CHAR str[LINE_LEN], *ptr;
38 2ee05c9a 2002-03-03 alex CLIENT *from, *c, *cl;
39 2ee05c9a 2002-03-03 alex CL2CHAN *cl2chan;
40 2ee05c9a 2002-03-03 alex INT max_hops, i;
41 2ee05c9a 2002-03-03 alex CHANNEL *chan;
44 2ee05c9a 2002-03-03 alex assert( Client != NULL );
45 2ee05c9a 2002-03-03 alex assert( Req != NULL );
47 2ee05c9a 2002-03-03 alex /* Fehler liefern, wenn kein lokaler Client */
48 2ee05c9a 2002-03-03 alex if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
50 2ee05c9a 2002-03-03 alex if( Client_Type( Client ) == CLIENT_GOTPASSSERVER )
52 2ee05c9a 2002-03-03 alex /* Verbindung soll als Server-Server-Verbindung registriert werden */
53 2ee05c9a 2002-03-03 alex Log( LOG_DEBUG, "Connection %d: got SERVER command (new server link) ...", Client_Conn( Client ));
55 2ee05c9a 2002-03-03 alex /* Falsche Anzahl Parameter? */
56 2ee05c9a 2002-03-03 alex if(( Req->argc != 2 ) && ( Req->argc != 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
58 2ee05c9a 2002-03-03 alex /* Ist dieser Server bei uns konfiguriert? */
59 2ee05c9a 2002-03-03 alex for( i = 0; i < Conf_Server_Count; i++ ) if( strcasecmp( Req->argv[0], Conf_Server[i].name ) == 0 ) break;
60 2ee05c9a 2002-03-03 alex if( i >= Conf_Server_Count )
62 2ee05c9a 2002-03-03 alex /* Server ist nicht konfiguriert! */
63 2ee05c9a 2002-03-03 alex Log( LOG_ERR, "Connection %d: Server \"%s\" not configured here!", Client_Conn( Client ), Req->argv[0] );
64 2ee05c9a 2002-03-03 alex Conn_Close( Client_Conn( Client ), NULL, "Server not configured here", TRUE );
65 2ee05c9a 2002-03-03 alex return DISCONNECTED;
67 2ee05c9a 2002-03-03 alex if( strcmp( Client_Password( Client ), Conf_Server[i].pwd ) != 0 )
69 2ee05c9a 2002-03-03 alex /* Falsches Passwort */
70 2ee05c9a 2002-03-03 alex Log( LOG_ERR, "Connection %d: Bad password for server \"%s\"!", Client_Conn( Client ), Req->argv[0] );
71 2ee05c9a 2002-03-03 alex Conn_Close( Client_Conn( Client ), NULL, "Bad password", TRUE );
72 2ee05c9a 2002-03-03 alex return DISCONNECTED;
75 2ee05c9a 2002-03-03 alex /* Ist ein Server mit dieser ID bereits registriert? */
76 2ee05c9a 2002-03-03 alex if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
78 2ee05c9a 2002-03-03 alex /* Server-Strukturen fuellen ;-) */
79 2ee05c9a 2002-03-03 alex Client_SetID( Client, Req->argv[0] );
80 2ee05c9a 2002-03-03 alex Client_SetHops( Client, 1 );
81 2ee05c9a 2002-03-03 alex Client_SetInfo( Client, Req->argv[Req->argc - 1] );
83 2ee05c9a 2002-03-03 alex /* Meldet sich der Server bei uns an? */
84 2ee05c9a 2002-03-03 alex if( Req->argc == 2 )
86 2ee05c9a 2002-03-03 alex /* Unseren SERVER- und PASS-Befehl senden */
88 2ee05c9a 2002-03-03 alex if( ! IRC_WriteStrClient( Client, "PASS %s "PASSSERVERADD, Conf_Server[i].pwd )) ok = FALSE;
89 2ee05c9a 2002-03-03 alex else ok = IRC_WriteStrClient( Client, "SERVER %s 1 :%s", Conf_ServerName, Conf_ServerInfo );
92 2ee05c9a 2002-03-03 alex Conn_Close( Client_Conn( Client ), "Unexpected server behavior!", NULL, FALSE );
93 2ee05c9a 2002-03-03 alex return DISCONNECTED;
95 2ee05c9a 2002-03-03 alex Client_SetIntroducer( Client, Client );
96 2ee05c9a 2002-03-03 alex Client_SetToken( Client, 1 );
98 2ee05c9a 2002-03-03 alex else Client_SetToken( Client, atoi( Req->argv[1] ));
100 2ee05c9a 2002-03-03 alex Log( LOG_NOTICE, "Server \"%s\" registered (connection %d, 1 hop - direct link).", Client_ID( Client ), Client_Conn( Client ));
102 2ee05c9a 2002-03-03 alex Client_SetType( Client, CLIENT_SERVER );
104 2ee05c9a 2002-03-03 alex /* maximalen Hop Count ermitteln */
105 2ee05c9a 2002-03-03 alex max_hops = 0;
106 2ee05c9a 2002-03-03 alex c = Client_First( );
109 2ee05c9a 2002-03-03 alex if( Client_Hops( c ) > max_hops ) max_hops = Client_Hops( c );
110 2ee05c9a 2002-03-03 alex c = Client_Next( c );
113 2ee05c9a 2002-03-03 alex /* Alle bisherigen Server dem neuen Server bekannt machen,
114 2ee05c9a 2002-03-03 alex * die bisherigen Server ueber den neuen informierenn */
115 2ee05c9a 2002-03-03 alex for( i = 0; i < ( max_hops + 1 ); i++ )
117 2ee05c9a 2002-03-03 alex c = Client_First( );
120 2ee05c9a 2002-03-03 alex if(( Client_Type( c ) == CLIENT_SERVER ) && ( c != Client ) && ( c != Client_ThisServer( )) && ( Client_Hops( c ) == i ))
122 2ee05c9a 2002-03-03 alex if( Client_Conn( c ) > NONE )
124 2ee05c9a 2002-03-03 alex /* Dem gefundenen Server gleich den neuen
125 2ee05c9a 2002-03-03 alex * Server bekannt machen */
126 2ee05c9a 2002-03-03 alex if( ! IRC_WriteStrClient( c, "SERVER %s %d %d :%s", Client_ID( Client ), Client_Hops( Client ) + 1, Client_MyToken( Client ), Client_Info( Client ))) return DISCONNECTED;
129 2ee05c9a 2002-03-03 alex /* Den neuen Server ueber den alten informieren */
130 2ee05c9a 2002-03-03 alex 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;
132 2ee05c9a 2002-03-03 alex c = Client_Next( c );
136 2ee05c9a 2002-03-03 alex /* alle User dem neuen Server bekannt machen */
137 2ee05c9a 2002-03-03 alex c = Client_First( );
140 2ee05c9a 2002-03-03 alex if( Client_Type( c ) == CLIENT_USER )
142 2ee05c9a 2002-03-03 alex /* User an neuen Server melden */
143 2ee05c9a 2002-03-03 alex 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;
145 2ee05c9a 2002-03-03 alex c = Client_Next( c );
148 2ee05c9a 2002-03-03 alex /* Channels dem neuen Server bekannt machen */
149 2ee05c9a 2002-03-03 alex chan = Channel_First( );
150 2ee05c9a 2002-03-03 alex while( chan )
152 2ee05c9a 2002-03-03 alex /* alle Member suchen */
153 2ee05c9a 2002-03-03 alex cl2chan = Channel_FirstMember( chan );
154 0e092b3f 2002-03-06 alex sprintf( str, "NJOIN %s :", Channel_Name( chan ));
155 2ee05c9a 2002-03-03 alex while( cl2chan )
157 2ee05c9a 2002-03-03 alex cl = Channel_GetClient( cl2chan );
158 2ee05c9a 2002-03-03 alex assert( cl != NULL );
160 2ee05c9a 2002-03-03 alex /* Nick, ggf. mit Modes, anhaengen */
161 2ee05c9a 2002-03-03 alex if( str[strlen( str ) - 1] != ':' ) strcat( str, "," );
162 2ee05c9a 2002-03-03 alex if( strchr( Channel_UserModes( chan, cl ), 'v' )) strcat( str, "+" );
163 2ee05c9a 2002-03-03 alex if( strchr( Channel_UserModes( chan, cl ), 'o' )) strcat( str, "@" );
164 2ee05c9a 2002-03-03 alex strcat( str, Client_ID( cl ));
166 0e092b3f 2002-03-06 alex if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 8 ))
168 2ee05c9a 2002-03-03 alex /* Zeile senden */
169 2ee05c9a 2002-03-03 alex if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED;
170 2ee05c9a 2002-03-03 alex sprintf( str, "NJOIN %s :", Channel_Name( chan ));
173 2ee05c9a 2002-03-03 alex cl2chan = Channel_NextMember( chan, cl2chan );
176 2ee05c9a 2002-03-03 alex /* noch Daten da? */
177 2ee05c9a 2002-03-03 alex if( str[strlen( str ) - 1] != ':')
179 2ee05c9a 2002-03-03 alex /* Ja; Also senden ... */
180 2ee05c9a 2002-03-03 alex if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED;
183 2ee05c9a 2002-03-03 alex /* naechsten Channel suchen */
184 2ee05c9a 2002-03-03 alex chan = Channel_Next( chan );
187 2ee05c9a 2002-03-03 alex return CONNECTED;
189 2ee05c9a 2002-03-03 alex else if( Client_Type( Client ) == CLIENT_SERVER )
191 2ee05c9a 2002-03-03 alex /* Neuer Server wird im Netz angekuendigt */
193 2ee05c9a 2002-03-03 alex /* Falsche Anzahl Parameter? */
194 2ee05c9a 2002-03-03 alex if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
196 2ee05c9a 2002-03-03 alex /* Ist ein Server mit dieser ID bereits registriert? */
197 2ee05c9a 2002-03-03 alex if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
199 2ee05c9a 2002-03-03 alex /* Ueberfluessige Hostnamen aus Info-Text entfernen */
200 2ee05c9a 2002-03-03 alex ptr = strchr( Req->argv[3] + 2, '[' );
201 2ee05c9a 2002-03-03 alex if( ! ptr ) ptr = Req->argv[3];
203 bc4ed226 2002-03-25 alex from = Client_Search( Req->prefix );
204 2ee05c9a 2002-03-03 alex if( ! from )
206 2ee05c9a 2002-03-03 alex /* Hm, Server, der diesen einfuehrt, ist nicht bekannt!? */
207 2ee05c9a 2002-03-03 alex Log( LOG_ALERT, "Unknown ID in prefix of SERVER: \"%s\"! (on connection %d)", Req->prefix, Client_Conn( Client ));
208 2ee05c9a 2002-03-03 alex Conn_Close( Client_Conn( Client ), NULL, "Unknown ID in prefix of SERVER", TRUE );
209 2ee05c9a 2002-03-03 alex return DISCONNECTED;
212 2ee05c9a 2002-03-03 alex /* Neue Client-Struktur anlegen */
213 2ee05c9a 2002-03-03 alex c = Client_NewRemoteServer( Client, Req->argv[0], from, atoi( Req->argv[1] ), atoi( Req->argv[2] ), ptr, TRUE );
216 2ee05c9a 2002-03-03 alex /* Neue Client-Struktur konnte nicht angelegt werden */
217 2ee05c9a 2002-03-03 alex Log( LOG_ALERT, "Can't create client structure for server! (on connection %d)", Client_Conn( Client ));
218 2ee05c9a 2002-03-03 alex Conn_Close( Client_Conn( Client ), NULL, "Can't allocate client structure for remote server", TRUE );
219 2ee05c9a 2002-03-03 alex return DISCONNECTED;
222 2ee05c9a 2002-03-03 alex /* Log-Meldung zusammenbauen und ausgeben */
223 2ee05c9a 2002-03-03 alex if(( Client_Hops( c ) > 1 ) && ( Req->prefix[0] )) sprintf( str, "connected to %s, ", Client_ID( from ));
224 2ee05c9a 2002-03-03 alex else strcpy( str, "" );
225 2ee05c9a 2002-03-03 alex 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": "" );
227 2ee05c9a 2002-03-03 alex /* Andere Server informieren */
228 2ee05c9a 2002-03-03 alex IRC_WriteStrServersPrefix( Client, from, "SERVER %s %d %d :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_MyToken( c ), Client_Info( c ));
230 2ee05c9a 2002-03-03 alex return CONNECTED;
232 2ee05c9a 2002-03-03 alex else return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
233 2ee05c9a 2002-03-03 alex } /* IRC_SERVER */
236 2ee05c9a 2002-03-03 alex GLOBAL BOOLEAN IRC_NJOIN( CLIENT *Client, REQUEST *Req )
238 2ee05c9a 2002-03-03 alex CHAR *channame, *ptr, modes[8];
239 2ee05c9a 2002-03-03 alex BOOLEAN is_op, is_voiced;
240 2ee05c9a 2002-03-03 alex CHANNEL *chan;
243 2ee05c9a 2002-03-03 alex assert( Client != NULL );
244 2ee05c9a 2002-03-03 alex assert( Req != NULL );
246 2ee05c9a 2002-03-03 alex if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTEREDSERVER_MSG, Client_ID( Client ));
248 2ee05c9a 2002-03-03 alex /* Falsche Anzahl Parameter? */
249 2ee05c9a 2002-03-03 alex if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
251 2ee05c9a 2002-03-03 alex channame = Req->argv[0];
252 2ee05c9a 2002-03-03 alex ptr = strtok( Req->argv[1], "," );
253 2ee05c9a 2002-03-03 alex while( ptr )
255 2ee05c9a 2002-03-03 alex is_op = is_voiced = FALSE;
257 2ee05c9a 2002-03-03 alex /* Prefixe abschneiden */
258 2ee05c9a 2002-03-03 alex while(( *ptr == '@' ) || ( *ptr == '+' ))
260 2ee05c9a 2002-03-03 alex if( *ptr == '@' ) is_op = TRUE;
261 2ee05c9a 2002-03-03 alex if( *ptr == '+' ) is_voiced = TRUE;
265 bc4ed226 2002-03-25 alex c = Client_Search( ptr );
268 2ee05c9a 2002-03-03 alex Channel_Join( c, channame );
269 2ee05c9a 2002-03-03 alex chan = Channel_Search( channame );
270 2ee05c9a 2002-03-03 alex assert( chan != NULL );
272 2ee05c9a 2002-03-03 alex if( is_op ) Channel_UserModeAdd( chan, c, 'o' );
273 2ee05c9a 2002-03-03 alex if( is_voiced ) Channel_UserModeAdd( chan, c, 'v' );
275 2ee05c9a 2002-03-03 alex /* im Channel bekannt machen */
276 2ee05c9a 2002-03-03 alex IRC_WriteStrChannelPrefix( Client, chan, c, FALSE, "JOIN :%s", channame );
278 2ee05c9a 2002-03-03 alex /* Channel-User-Modes setzen */
279 2ee05c9a 2002-03-03 alex strcpy( modes, Channel_UserModes( chan, c ));
280 2ee05c9a 2002-03-03 alex if( modes[0] )
282 2ee05c9a 2002-03-03 alex /* Modes im Channel bekannt machen */
283 2ee05c9a 2002-03-03 alex IRC_WriteStrChannelPrefix( Client, chan, Client, FALSE, "MODE %s +%s %s", channame, modes, Client_ID( c ));
286 2ee05c9a 2002-03-03 alex else Log( LOG_ERR, "Got NJOIN for unknown nick \"%s\" for channel \"%s\"!", ptr, channame );
288 2ee05c9a 2002-03-03 alex /* naechsten Nick suchen */
289 2ee05c9a 2002-03-03 alex ptr = strtok( NULL, "," );
292 2ee05c9a 2002-03-03 alex /* an andere Server weiterleiten */
293 2ee05c9a 2002-03-03 alex IRC_WriteStrServersPrefix( Client, Client_ThisServer( ), "NJOIN %s :%s", Req->argv[0], Req->argv[1] );
295 2ee05c9a 2002-03-03 alex return CONNECTED;
296 2ee05c9a 2002-03-03 alex } /* IRC_NJOIN */
299 2ee05c9a 2002-03-03 alex GLOBAL BOOLEAN IRC_SQUIT( CLIENT *Client, REQUEST *Req )
301 2ee05c9a 2002-03-03 alex CLIENT *target;
302 2ee05c9a 2002-03-03 alex CHAR msg[LINE_LEN + 64];
304 2ee05c9a 2002-03-03 alex assert( Client != NULL );
305 2ee05c9a 2002-03-03 alex assert( Req != NULL );
307 2ee05c9a 2002-03-03 alex /* SQUIT ist nur fuer Server erlaubt */
308 2ee05c9a 2002-03-03 alex if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
310 2ee05c9a 2002-03-03 alex /* Falsche Anzahl Parameter? */
311 2ee05c9a 2002-03-03 alex if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
313 2ee05c9a 2002-03-03 alex Log( LOG_DEBUG, "Got SQUIT from %s for \"%s\": \"%s\" ...", Client_ID( Client ), Req->argv[0], Req->argv[1] );
315 2ee05c9a 2002-03-03 alex /* SQUIT an alle Server weiterleiten */
316 2ee05c9a 2002-03-03 alex IRC_WriteStrServers( Client, "SQUIT %s :%s", Req->argv[0], Req->argv[1] );
318 bc4ed226 2002-03-25 alex target = Client_Search( Req->argv[0] );
319 2ee05c9a 2002-03-03 alex if( ! target )
321 9fc7e66f 2002-03-11 alex /* Den Server kennen wir nicht (mehr), also nichts zu tun. */
322 f7a0ff1f 2002-03-11 alex Log( LOG_WARNING, "Got SQUIT from %s for unknown server \"%s\"!?", Client_ID( Client ), Req->argv[0] );
323 2ee05c9a 2002-03-03 alex return CONNECTED;
326 2ee05c9a 2002-03-03 alex if( Req->argv[1][0] )
328 2ee05c9a 2002-03-03 alex if( strlen( Req->argv[1] ) > LINE_LEN ) Req->argv[1][LINE_LEN] = '\0';
329 2ee05c9a 2002-03-03 alex sprintf( msg, "%s (SQUIT from %s).", Req->argv[1], Client_ID( Client ));
331 2ee05c9a 2002-03-03 alex else sprintf( msg, "Got SQUIT from %s.", Client_ID( Client ));
333 2ee05c9a 2002-03-03 alex if( Client_Conn( target ) > NONE )
335 2ee05c9a 2002-03-03 alex /* dieser Server hat die Connection */
336 2ee05c9a 2002-03-03 alex if( Req->argv[1][0] ) Conn_Close( Client_Conn( target ), msg, Req->argv[1], TRUE );
337 2ee05c9a 2002-03-03 alex else Conn_Close( Client_Conn( target ), msg, NULL, TRUE );
338 2ee05c9a 2002-03-03 alex return DISCONNECTED;
342 2ee05c9a 2002-03-03 alex /* Verbindung hielt anderer Server */
343 50ec7a56 2002-03-11 alex Client_Destroy( target, msg, Req->argv[1], FALSE );
344 2ee05c9a 2002-03-03 alex return CONNECTED;
346 2ee05c9a 2002-03-03 alex } /* IRC_SQUIT */
349 2ee05c9a 2002-03-03 alex /* -eof- */
