/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2013 Alexander Barton (alex@barton.de) and Contributors.
*
- * Dieses Programm ist freie Software. Sie koennen es unter den Bedingungen
- * der GNU General Public License (GPL), wie von der Free Software Foundation
- * herausgegeben, weitergeben und/oder modifizieren, entweder unter Version 2
- * der Lizenz oder (wenn Sie es wuenschen) jeder spaeteren Version.
- * Naehere Informationen entnehmen Sie bitter der Datei COPYING. Eine Liste
- * der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS.
- *
- * $Id: irc-server.c,v 1.12 2002/07/25 12:33:19 alex Exp $
- *
- * irc-server.c: IRC-Befehle fuer Server-Links
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * Please read the file COPYING, README and AUTHORS for more information.
*/
-
#include "portab.h"
+/**
+ * @file
+ * IRC commands for server links
+ */
+
#include "imp.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <strings.h>
-#include "resolve.h"
-#include "conf.h"
+#include "defines.h"
#include "conn.h"
-#include "client.h"
+#include "conn-func.h"
+#include "conn-zip.h"
+#include "conf.h"
#include "channel.h"
-#include "irc-write.h"
+#include "lists.h"
#include "log.h"
#include "messages.h"
#include "parse.h"
+#include "numeric.h"
+#include "ngircd.h"
+#include "irc-info.h"
+#include "irc-macros.h"
+#include "irc-write.h"
+#include "op.h"
#include "exp.h"
#include "irc-server.h"
-
-GLOBAL BOOLEAN
+/**
+ * Handler for the IRC "SERVER" command.
+ *
+ * @param Client The client from which this command has been received.
+ * @param Req Request structure with prefix and all parameters.
+ * @return CONNECTED or DISCONNECTED.
+ */
+GLOBAL bool
IRC_SERVER( CLIENT *Client, REQUEST *Req )
{
- CHAR str[LINE_LEN], *ptr;
- CLIENT *from, *c, *cl;
- CL2CHAN *cl2chan;
- INT max_hops, i;
- CHANNEL *chan;
- BOOLEAN ok;
-
+ char str[LINE_LEN];
+ CLIENT *from, *c;
+ int i;
+
assert( Client != NULL );
assert( Req != NULL );
- /* Fehler liefern, wenn kein lokaler Client */
- if( Client_Conn( Client ) <= NONE ) return IRC_WriteStrClient( Client, ERR_UNKNOWNCOMMAND_MSG, Client_ID( Client ), Req->command );
-
- if( Client_Type( Client ) == CLIENT_GOTPASSSERVER )
- {
- /* Verbindung soll als Server-Server-Verbindung registriert werden */
- Log( LOG_DEBUG, "Connection %d: got SERVER command (new server link) ...", Client_Conn( Client ));
-
- /* Falsche Anzahl Parameter? */
- if(( Req->argc != 2 ) && ( Req->argc != 3 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
-
- /* Ist dieser Server bei uns konfiguriert? */
- for( i = 0; i < Conf_Server_Count; i++ ) if( strcasecmp( Req->argv[0], Conf_Server[i].name ) == 0 ) break;
- if( i >= Conf_Server_Count )
- {
- /* Server ist nicht konfiguriert! */
- Log( LOG_ERR, "Connection %d: Server \"%s\" not configured here!", Client_Conn( Client ), Req->argv[0] );
- Conn_Close( Client_Conn( Client ), NULL, "Server not configured here", TRUE );
+ /* Return an error if this is not a local client */
+ if (Client_Conn(Client) <= NONE)
+ return IRC_WriteErrClient(Client, ERR_UNKNOWNCOMMAND_MSG,
+ Client_ID(Client), Req->command);
+
+ if (Client_Type(Client) == CLIENT_GOTPASS ||
+ Client_Type(Client) == CLIENT_GOTPASS_2813) {
+ /* We got a PASS command from the peer, and now a SERVER
+ * command: the peer tries to register itself as a server. */
+ LogDebug("Connection %d: got SERVER command (new server link) ...",
+ Client_Conn(Client));
+
+ if (Req->argc != 2 && Req->argc != 3)
+ return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client),
+ Req->command);
+
+ /* Get configuration index of new remote server ... */
+ for (i = 0; i < MAX_SERVERS; i++)
+ if (strcasecmp(Req->argv[0], Conf_Server[i].name) == 0)
+ break;
+
+ /* Make sure the remote server is configured here */
+ if (i >= MAX_SERVERS) {
+ Log(LOG_ERR,
+ "Connection %d: Server \"%s\" not configured here!",
+ Client_Conn(Client), Req->argv[0]);
+ Conn_Close(Client_Conn(Client), NULL,
+ "Server not configured here", true);
return DISCONNECTED;
}
- if( strcmp( Client_Password( Client ), Conf_Server[i].pwd ) != 0 )
- {
- /* Falsches Passwort */
- Log( LOG_ERR, "Connection %d: Bad password for server \"%s\"!", Client_Conn( Client ), Req->argv[0] );
- Conn_Close( Client_Conn( Client ), NULL, "Bad password", TRUE );
+
+ /* Check server password */
+ if (strcmp(Conn_Password(Client_Conn(Client)),
+ Conf_Server[i].pwd_in) != 0) {
+ Log(LOG_ERR,
+ "Connection %d: Got bad password from server \"%s\"!",
+ Client_Conn(Client), Req->argv[0]);
+ Conn_Close(Client_Conn(Client), NULL,
+ "Bad password", true);
return DISCONNECTED;
}
-
- /* Ist ein Server mit dieser ID bereits registriert? */
- if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
- /* Server-Strukturen fuellen ;-) */
+ /* Is there a registered server with this ID? */
+ if (!Client_CheckID(Client, Req->argv[0]))
+ return DISCONNECTED;
+
+ /* Mark this connection as belonging to an configured server */
+ if (!Conf_SetServer(i, Client_Conn(Client)))
+ return DISCONNECTED;
+
Client_SetID( Client, Req->argv[0] );
Client_SetHops( Client, 1 );
Client_SetInfo( Client, Req->argv[Req->argc - 1] );
-
- /* Meldet sich der Server bei uns an (d.h., bauen nicht wir
- * selber die Verbindung zu einem anderen Server auf)? */
- if( Client_Token( Client ) != TOKEN_OUTBOUND )
- {
- /* Eingehende Verbindung: Unseren SERVER- und PASS-Befehl senden */
- ok = TRUE;
- if( ! IRC_WriteStrClient( Client, "PASS %s %s", Conf_Server[i].pwd, PASSSERVERADD )) ok = FALSE;
- else ok = IRC_WriteStrClient( Client, "SERVER %s 1 :%s", Conf_ServerName, Conf_ServerInfo );
- if( ! ok )
- {
- Conn_Close( Client_Conn( Client ), "Unexpected server behavior!", NULL, FALSE );
- return DISCONNECTED;
- }
- Client_SetIntroducer( Client, Client );
- Client_SetToken( Client, 1 );
- }
- else
- {
- /* Ausgehende verbindung, SERVER und PASS wurden von uns bereits
- * an die Gegenseite uerbermittelt */
- Client_SetToken( Client, atoi( Req->argv[1] ));
- }
- Log( LOG_NOTICE|LOG_snotice, "Server \"%s\" registered (connection %d, 1 hop - direct link).", Client_ID( Client ), Client_Conn( Client ));
-
- Client_SetType( Client, CLIENT_SERVER );
-
- /* maximalen Hop Count ermitteln */
- max_hops = 0;
- c = Client_First( );
- while( c )
- {
- if( Client_Hops( c ) > max_hops ) max_hops = Client_Hops( c );
- c = Client_Next( c );
- }
-
- /* Alle bisherigen Server dem neuen Server bekannt machen,
- * die bisherigen Server ueber den neuen informierenn */
- for( i = 0; i < ( max_hops + 1 ); i++ )
- {
- c = Client_First( );
- while( c )
- {
- if(( Client_Type( c ) == CLIENT_SERVER ) && ( c != Client ) && ( c != Client_ThisServer( )) && ( Client_Hops( c ) == i ))
- {
- if( Client_Conn( c ) > NONE )
- {
- /* Dem gefundenen Server gleich den neuen
- * Server bekannt machen */
- if( ! IRC_WriteStrClient( c, "SERVER %s %d %d :%s", Client_ID( Client ), Client_Hops( Client ) + 1, Client_MyToken( Client ), Client_Info( Client ))) return DISCONNECTED;
- }
-
- /* Den neuen Server ueber den alten informieren */
- 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;
- }
- c = Client_Next( c );
+ /* Is this server registering on our side, or are we connecting to
+ * a remote server? */
+ if (Client_Token(Client) != TOKEN_OUTBOUND) {
+ /* Incoming connection, send user/pass */
+ if (!IRC_WriteStrClient(Client, "PASS %s %s",
+ Conf_Server[i].pwd_out,
+ NGIRCd_ProtoID)
+ || !IRC_WriteStrClient(Client, "SERVER %s 1 :%s",
+ Conf_ServerName,
+ Conf_ServerInfo)) {
+ Conn_Close(Client_Conn(Client),
+ "Unexpected server behavior!",
+ NULL, false);
+ return DISCONNECTED;
}
+ Client_SetIntroducer(Client, Client);
+ Client_SetToken(Client, 1);
+ } else {
+ /* outgoing connect, we already sent a SERVER and PASS
+ * command to the peer */
+ Client_SetToken(Client, atoi(Req->argv[1]));
}
- /* alle User dem neuen Server bekannt machen */
- c = Client_First( );
- while( c )
- {
- if( Client_Type( c ) == CLIENT_USER )
- {
- /* User an neuen Server melden */
- 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;
- }
- c = Client_Next( c );
+ /* Check protocol level */
+ if (Client_Type(Client) == CLIENT_GOTPASS) {
+ /* We got a "simple" PASS command, so the peer is
+ * using the protocol as defined in RFC 1459. */
+ if (! (Conn_Options(Client_Conn(Client)) & CONN_RFC1459))
+ Log(LOG_INFO,
+ "Switching connection %d (\"%s\") to RFC 1459 compatibility mode.",
+ Client_Conn(Client), Client_ID(Client));
+ Conn_SetOption(Client_Conn(Client), CONN_RFC1459);
}
- /* Channels dem neuen Server bekannt machen */
- chan = Channel_First( );
- while( chan )
- {
- /* alle Member suchen */
- cl2chan = Channel_FirstMember( chan );
- sprintf( str, "NJOIN %s :", Channel_Name( chan ));
- while( cl2chan )
- {
- cl = Channel_GetClient( cl2chan );
- assert( cl != NULL );
-
- /* Nick, ggf. mit Modes, anhaengen */
- if( str[strlen( str ) - 1] != ':' ) strcat( str, "," );
- if( strchr( Channel_UserModes( chan, cl ), 'v' )) strcat( str, "+" );
- if( strchr( Channel_UserModes( chan, cl ), 'o' )) strcat( str, "@" );
- strcat( str, Client_ID( cl ));
-
- if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 8 ))
- {
- /* Zeile senden */
- if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED;
- sprintf( str, "NJOIN %s :", Channel_Name( chan ));
- }
-
- cl2chan = Channel_NextMember( chan, cl2chan );
- }
+ Client_SetType(Client, CLIENT_UNKNOWNSERVER);
- /* noch Daten da? */
- if( str[strlen( str ) - 1] != ':')
- {
- /* Ja; Also senden ... */
- if( ! IRC_WriteStrClient( Client, str )) return DISCONNECTED;
- }
+#ifdef ZLIB
+ if (Client_HasFlag(Client, 'Z')
+ && !Zip_InitConn(Client_Conn(Client))) {
+ Conn_Close(Client_Conn(Client),
+ "Can't initialize compression (zlib)!",
+ NULL, false );
+ return DISCONNECTED;
+ }
+#endif
- /* naechsten Channel suchen */
- chan = Channel_Next( chan );
+#ifdef IRCPLUS
+ if (Client_HasFlag(Client, 'H')) {
+ LogDebug("Peer supports IRC+ extended server handshake ...");
+ if (!IRC_Send_ISUPPORT(Client))
+ return DISCONNECTED;
+ return IRC_WriteStrClient(Client, RPL_ENDOFMOTD_MSG,
+ Client_ID(Client));
+ } else {
+#endif
+ if (Conf_MaxNickLength != CLIENT_NICK_LEN_DEFAULT)
+ Log(LOG_CRIT,
+ "Attention: this server uses a non-standard nick length, but the peer doesn't support the IRC+ extended server handshake!");
+#ifdef IRCPLUS
}
-
- return CONNECTED;
+#endif
+
+ return IRC_Num_ENDOFMOTD(Client, Req);
}
else if( Client_Type( Client ) == CLIENT_SERVER )
{
- /* Neuer Server wird im Netz angekuendigt */
-
- /* Falsche Anzahl Parameter? */
- if( Req->argc != 4 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ /* New server is being introduced to the network */
- /* Ist ein Server mit dieser ID bereits registriert? */
- if( ! Client_CheckID( Client, Req->argv[0] )) return DISCONNECTED;
+ if (Req->argc != 4)
+ return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
- /* Ueberfluessige Hostnamen aus Info-Text entfernen */
- ptr = strchr( Req->argv[3] + 2, '[' );
- if( ! ptr ) ptr = Req->argv[3];
+ /* check for existing server with same ID */
+ if (!Client_CheckID(Client, Req->argv[0]))
+ return DISCONNECTED;
from = Client_Search( Req->prefix );
- if( ! from )
- {
- /* Hm, Server, der diesen einfuehrt, ist nicht bekannt!? */
- Log( LOG_ALERT, "Unknown ID in prefix of SERVER: \"%s\"! (on connection %d)", Req->prefix, Client_Conn( Client ));
- Conn_Close( Client_Conn( Client ), NULL, "Unknown ID in prefix of SERVER", TRUE );
+ if (! from) {
+ /* Uh, Server, that introduced the new server is unknown?! */
+ Log(LOG_ALERT,
+ "Unknown ID in prefix of SERVER: \"%s\"! (on connection %d)",
+ Req->prefix, Client_Conn(Client));
+ Conn_Close(Client_Conn(Client), NULL,
+ "Unknown ID in prefix of SERVER", true);
return DISCONNECTED;
}
- /* Neue Client-Struktur anlegen */
- c = Client_NewRemoteServer( Client, Req->argv[0], from, atoi( Req->argv[1] ), atoi( Req->argv[2] ), ptr, TRUE );
- if( ! c )
- {
- /* Neue Client-Struktur konnte nicht angelegt werden */
- Log( LOG_ALERT, "Can't create client structure for server! (on connection %d)", Client_Conn( Client ));
- Conn_Close( Client_Conn( Client ), NULL, "Can't allocate client structure for remote server", TRUE );
+ c = Client_NewRemoteServer(Client, Req->argv[0], from,
+ atoi(Req->argv[1]), atoi(Req->argv[2]),
+ Req->argv[3], true);
+ if (!c) {
+ Log(LOG_ALERT,
+ "Can't create client structure for server! (on connection %d)",
+ Client_Conn(Client));
+ Conn_Close(Client_Conn(Client), NULL,
+ "Can't allocate client structure for remote server",
+ true);
return DISCONNECTED;
}
- /* Log-Meldung zusammenbauen und ausgeben */
- if(( Client_Hops( c ) > 1 ) && ( Req->prefix[0] )) sprintf( str, "connected to %s, ", Client_ID( from ));
- else strcpy( str, "" );
- Log( LOG_NOTICE|LOG_snotice, "Server \"%s\" registered (via %s, %s%d hop%s).", Client_ID( c ), Client_ID( Client ), str, Client_Hops( c ), Client_Hops( c ) > 1 ? "s": "" );
+ if (Client_Hops(c) > 1 && Req->prefix[0])
+ snprintf(str, sizeof(str), "connected to %s, ",
+ Client_ID(from));
+ else
+ strcpy(str, "");
+ Log(LOG_NOTICE|LOG_snotice,
+ "Server \"%s\" registered (via %s, %s%d hop%s).",
+ Client_ID(c), Client_ID(Client), str, Client_Hops(c),
+ Client_Hops(c) > 1 ? "s": "" );
- /* Andere Server informieren */
- IRC_WriteStrServersPrefix( Client, from, "SERVER %s %d %d :%s", Client_ID( c ), Client_Hops( c ) + 1, Client_MyToken( c ), Client_Info( c ));
+ /* notify other servers */
+ IRC_WriteStrServersPrefix(Client, from, "SERVER %s %d %d :%s",
+ Client_ID(c), Client_Hops(c) + 1,
+ Client_MyToken(c), Client_Info(c));
return CONNECTED;
- }
- else return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+ } else
+ return IRC_WriteErrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
} /* IRC_SERVER */
-
-GLOBAL BOOLEAN
+/*
+ * Handler for the IRC "NJOIN" command.
+ *
+ * @param Client The client from which this command has been received.
+ * @param Req Request structure with prefix and all parameters.
+ * @return CONNECTED or DISCONNECTED.
+ */
+GLOBAL bool
IRC_NJOIN( CLIENT *Client, REQUEST *Req )
{
- CHAR str[COMMAND_LEN], *channame, *ptr, modes[8];
- BOOLEAN is_op, is_voiced;
+ char nick_in[COMMAND_LEN], nick_out[COMMAND_LEN], *channame, *ptr, modes[8];
+ bool is_owner, is_chanadmin, is_op, is_halfop, is_voiced;
CHANNEL *chan;
CLIENT *c;
-
+
assert( Client != NULL );
assert( Req != NULL );
- if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTEREDSERVER_MSG, Client_ID( Client ));
-
- /* Falsche Anzahl Parameter? */
- if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
-
- strncpy( str, Req->argv[1], COMMAND_LEN - 1 );
- str[COMMAND_LEN - 1] = '\0';
+ strlcpy( nick_in, Req->argv[1], sizeof( nick_in ));
+ strcpy( nick_out, "" );
channame = Req->argv[0];
- ptr = strtok( str, "," );
+ ptr = strtok( nick_in, "," );
while( ptr )
{
- is_op = is_voiced = FALSE;
-
- /* Prefixe abschneiden */
- while(( *ptr == '@' ) || ( *ptr == '+' ))
+ is_owner = is_chanadmin = is_op = is_halfop = is_voiced = false;
+
+ /* cut off prefixes */
+ while(( *ptr == '~') || ( *ptr == '&' ) || ( *ptr == '@' ) ||
+ ( *ptr == '%') || ( *ptr == '+' ))
{
- if( *ptr == '@' ) is_op = TRUE;
- if( *ptr == '+' ) is_voiced = TRUE;
+ if( *ptr == '~' ) is_owner = true;
+ if( *ptr == '&' ) is_chanadmin = true;
+ if( *ptr == '@' ) is_op = true;
+ if( *ptr == 'h' ) is_halfop = true;
+ if( *ptr == '+' ) is_voiced = true;
ptr++;
}
Channel_Join( c, channame );
chan = Channel_Search( channame );
assert( chan != NULL );
-
+
+ if( is_owner ) Channel_UserModeAdd( chan, c, 'q' );
+ if( is_chanadmin ) Channel_UserModeAdd( chan, c, 'a' );
if( is_op ) Channel_UserModeAdd( chan, c, 'o' );
+ if( is_halfop ) Channel_UserModeAdd( chan, c, 'h' );
if( is_voiced ) Channel_UserModeAdd( chan, c, 'v' );
- /* im Channel bekannt machen */
- IRC_WriteStrChannelPrefix( Client, chan, c, FALSE, "JOIN :%s", channame );
+ /* announce to channel... */
+ IRC_WriteStrChannelPrefix( Client, chan, c, false, "JOIN :%s", channame );
- /* Channel-User-Modes setzen */
- strcpy( modes, Channel_UserModes( chan, c ));
+ /* set Channel-User-Modes */
+ strlcpy( modes, Channel_UserModes( chan, c ), sizeof( modes ));
if( modes[0] )
{
- /* Modes im Channel bekannt machen */
- IRC_WriteStrChannelPrefix( Client, chan, Client, FALSE, "MODE %s +%s %s", channame, modes, Client_ID( c ));
+ /* send modes to channel */
+ IRC_WriteStrChannelPrefix( Client, chan, Client, false, "MODE %s +%s %s", channame, modes, Client_ID( c ));
}
+
+ if( nick_out[0] != '\0' ) strlcat( nick_out, ",", sizeof( nick_out ));
+ if( is_owner ) strlcat( nick_out, "~", sizeof( nick_out ));
+ if( is_chanadmin ) strlcat( nick_out, "&", sizeof( nick_out ));
+ if( is_op ) strlcat( nick_out, "@", sizeof( nick_out ));
+ if( is_halfop ) strlcat( nick_out, "%", sizeof( nick_out ));
+ if( is_voiced ) strlcat( nick_out, "+", sizeof( nick_out ));
+ strlcat( nick_out, ptr, sizeof( nick_out ));
}
else Log( LOG_ERR, "Got NJOIN for unknown nick \"%s\" for channel \"%s\"!", ptr, channame );
-
- /* naechsten Nick suchen */
+
+ /* search for next Nick */
ptr = strtok( NULL, "," );
}
- /* an andere Server weiterleiten */
- IRC_WriteStrServersPrefix( Client, Client_ThisServer( ), "NJOIN %s :%s", Req->argv[0], Req->argv[1] );
+ /* forward to other servers */
+ if (nick_out[0] != '\0')
+ IRC_WriteStrServersPrefix(Client, Client_ThisServer(),
+ "NJOIN %s :%s", Req->argv[0], nick_out);
return CONNECTED;
} /* IRC_NJOIN */
-
-GLOBAL BOOLEAN
-IRC_SQUIT( CLIENT *Client, REQUEST *Req )
+/**
+ * Handler for the IRC "SQUIT" command.
+ *
+ * @param Client The client from which this command has been received.
+ * @param Req Request structure with prefix and all parameters.
+ * @return CONNECTED or DISCONNECTED.
+ */
+GLOBAL bool
+IRC_SQUIT(CLIENT * Client, REQUEST * Req)
{
- CLIENT *target;
- CHAR msg[LINE_LEN + 64];
-
- assert( Client != NULL );
- assert( Req != NULL );
-
- /* SQUIT ist nur fuer Server erlaubt */
- if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client ));
-
- /* Falsche Anzahl Parameter? */
- if( Req->argc != 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
-
- Log( LOG_DEBUG, "Got SQUIT from %s for \"%s\": \"%s\" ...", Client_ID( Client ), Req->argv[0], Req->argv[1] );
-
- /* SQUIT an alle Server weiterleiten */
- IRC_WriteStrServers( Client, "SQUIT %s :%s", Req->argv[0], Req->argv[1] );
-
- target = Client_Search( Req->argv[0] );
- if( ! target )
- {
- /* Den Server kennen wir nicht (mehr), also nichts zu tun. */
- Log( LOG_WARNING, "Got SQUIT from %s for unknown server \"%s\"!?", Client_ID( Client ), Req->argv[0] );
+ char msg[COMMAND_LEN], logmsg[COMMAND_LEN];
+ CLIENT *from, *target;
+ CONN_ID con;
+ int loglevel;
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ if (Client_Type(Client) != CLIENT_SERVER
+ && !Client_HasMode(Client, 'o'))
+ return Op_NoPrivileges(Client, Req);
+
+ if (Client_Type(Client) == CLIENT_SERVER && Req->prefix) {
+ from = Client_Search(Req->prefix);
+ if (Client_Type(from) != CLIENT_SERVER
+ && !Op_Check(Client, Req))
+ return Op_NoPrivileges(Client, Req);
+ } else
+ from = Client;
+ if (!from)
+ return IRC_WriteErrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->prefix);
+
+ if (Client_Type(Client) == CLIENT_USER)
+ loglevel = LOG_NOTICE | LOG_snotice;
+ else
+ loglevel = LOG_DEBUG;
+ Log(loglevel, "Got SQUIT from %s for \"%s\": \"%s\" ...",
+ Client_ID(from), Req->argv[0], Req->argv[1]);
+
+ target = Client_Search(Req->argv[0]);
+ if (Client_Type(Client) != CLIENT_SERVER &&
+ target == Client_ThisServer())
+ return Op_NoPrivileges(Client, Req);
+ if (!target) {
+ /* The server is (already) unknown */
+ Log(LOG_WARNING,
+ "Got SQUIT from %s for unknown server \"%s\"!?",
+ Client_ID(Client), Req->argv[0]);
return CONNECTED;
}
- if( Req->argv[1][0] )
- {
- if( strlen( Req->argv[1] ) > LINE_LEN ) Req->argv[1][LINE_LEN] = '\0';
- sprintf( msg, "%s (SQUIT from %s).", Req->argv[1], Client_ID( Client ));
- }
- else sprintf( msg, "Got SQUIT from %s.", Client_ID( Client ));
+ con = Client_Conn(target);
- if( Client_Conn( target ) > NONE )
- {
- /* dieser Server hat die Connection */
- if( Req->argv[1][0] ) Conn_Close( Client_Conn( target ), msg, Req->argv[1], TRUE );
- else Conn_Close( Client_Conn( target ), msg, NULL, TRUE );
- return DISCONNECTED;
- }
+ if (Req->argv[1][0])
+ if (Client_NextHop(from) != Client || con > NONE)
+ snprintf(msg, sizeof(msg), "\"%s\" (SQUIT from %s)",
+ Req->argv[1], Client_ID(from));
+ else
+ strlcpy(msg, Req->argv[1], sizeof(msg));
else
- {
- /* Verbindung hielt anderer Server */
- Client_Destroy( target, msg, Req->argv[1], FALSE );
- return CONNECTED;
+ snprintf(msg, sizeof(msg), "Got SQUIT from %s",
+ Client_ID(from));
+
+ if (con > NONE) {
+ /* We are directly connected to the target server, so we
+ * have to tear down the connection and to inform all the
+ * other remaining servers in the network */
+ IRC_SendWallops(Client_ThisServer(), Client_ThisServer(),
+ "Received SQUIT %s from %s: %s",
+ Req->argv[0], Client_ID(from),
+ Req->argv[1][0] ? Req->argv[1] : "-");
+ Conn_Close(con, NULL, msg, true);
+ if (con == Client_Conn(Client))
+ return DISCONNECTED;
+ } else {
+ /* This server is not directly connected, so the SQUIT must
+ * be forwarded ... */
+ if (Client_Type(from) != CLIENT_SERVER) {
+ /* The origin is not an IRC server, so don't evaluate
+ * this SQUIT but simply forward it */
+ IRC_WriteStrClientPrefix(Client_NextHop(target),
+ from, "SQUIT %s :%s", Req->argv[0], Req->argv[1]);
+ } else {
+ /* SQUIT has been generated by another server, so
+ * remove the target server from the network! */
+ logmsg[0] = '\0';
+ if (!strchr(msg, '('))
+ snprintf(logmsg, sizeof(logmsg),
+ "\"%s\" (SQUIT from %s)", Req->argv[1],
+ Client_ID(from));
+ Client_Destroy(target, logmsg[0] ? logmsg : msg,
+ msg, false);
+ }
}
+ return CONNECTED;
} /* IRC_SQUIT */
-
/* -eof- */
projects / ngircd-alex.git / blobdiff