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ngircd-tor/src/ngircd/irc.c

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/*
* ngIRCd -- The Next Generation IRC Daemon
* Copyright (c)2001-2003 by Alexander Barton (alex@barton.de)
*
* 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.
*
* IRC commands
*/
#include "portab.h"
static char UNUSED id[] = "$Id: irc.c,v 1.123 2003/12/26 15:55:07 alex Exp $";
#include "imp.h"
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include "ngircd.h"
#include "conn.h"
#include "resolve.h"
#include "conf.h"
#include "conn-func.h"
#include "client.h"
#include "channel.h"
#include "defines.h"
#include "irc-write.h"
#include "log.h"
#include "messages.h"
#include "parse.h"
#include "exp.h"
#include "irc.h"
LOCAL CHAR *Option_String PARAMS(( CONN_ID Idx ));
GLOBAL BOOLEAN
IRC_ERROR( CLIENT *Client, REQUEST *Req )
{
assert( Client != NULL );
assert( Req != NULL );
if( Req->argc < 1 ) Log( LOG_NOTICE, "Got ERROR from \"%s\"!", Client_Mask( Client ));
else Log( LOG_NOTICE, "Got ERROR from \"%s\": %s!", Client_Mask( Client ), Req->argv[0] );
return CONNECTED;
} /* IRC_ERROR */
GLOBAL BOOLEAN
IRC_KILL( CLIENT *Client, REQUEST *Req )
{
CLIENT *prefix, *c;
CHAR reason[COMMAND_LEN];
CONN_ID my_conn, conn;
assert( Client != NULL );
assert( Req != NULL );
/* Is the user an IRC operator? */
if(( Client_Type( Client ) != CLIENT_SERVER ) && ( ! Client_OperByMe( Client ))) return IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
/* Bad number of parameters? */
if(( Req->argc != 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
if( Req->prefix ) prefix = Client_Search( Req->prefix );
else prefix = Client;
if( ! prefix )
{
Log( LOG_WARNING, "Got KILL with invalid prefix: \"%s\"!", Req->prefix );
prefix = Client_ThisServer( );
}
if( Client != Client_ThisServer( )) Log( LOG_NOTICE|LOG_snotice, "Got KILL command from \"%s\" for \"%s\": %s", Client_Mask( prefix ), Req->argv[0], Req->argv[1] );
/* Build reason string */
if( Client_Type( Client ) == CLIENT_USER ) snprintf( reason, sizeof( reason ), "KILLed by %s: %s", Client_ID( Client ), Req->argv[1] );
else strlcpy( reason, Req->argv[1], sizeof( reason ));
/* Inform other servers */
IRC_WriteStrServersPrefix( Client, prefix, "KILL %s :%s", Req->argv[0], reason );
/* Save ID of this connection */
my_conn = Client_Conn( Client );
/* Do we host such a client? */
c = Client_Search( Req->argv[0] );
if( c )
{
/* Yes, there is such a client -- but is it a valid user? */
if( Client_Type( c ) == CLIENT_SERVER )
{
if( Client != Client_ThisServer( )) IRC_WriteStrClient( Client, ERR_CANTKILLSERVER_MSG, Client_ID( Client ));
else
{
/* Oops, I should kill another server!? */
Log( LOG_ERR, "Can't KILL server \"%s\"!", Req->argv[0] );
conn = Client_Conn( Client_NextHop( c ));
assert( conn > NONE );
Conn_Close( conn, NULL, "Nick collision for server!?", TRUE );
}
}
else if( Client_Type( c ) != CLIENT_USER )
{
if( Client != Client_ThisServer( )) IRC_WriteStrClient( Client, ERR_NOPRIVILEGES_MSG, Client_ID( Client ));
else
{
/* Oops, what sould I close?? */
Log( LOG_ERR, "Can't KILL \"%s\": invalid client type!", Req->argv[0] );
conn = Client_Conn( Client_NextHop( c ));
assert( conn > NONE );
Conn_Close( conn, NULL, "Collision for invalid client type!?", TRUE );
}
}
else
{
/* Kill user NOW! */
conn = Client_Conn( c );
Client_Destroy( c, NULL, reason, FALSE );
if( conn != NONE ) Conn_Close( conn, NULL, reason, TRUE );
}
}
else Log( LOG_NOTICE, "Client with nick \"%s\" is unknown here.", Req->argv[0] );
/* Are we still connected or were we killed, too? */
if(( my_conn > NONE ) && ( Client_GetFromConn( my_conn ))) return CONNECTED;
else return DISCONNECTED;
} /* IRC_KILL */
GLOBAL BOOLEAN
IRC_NOTICE( CLIENT *Client, REQUEST *Req )
{
CLIENT *to, *from;
assert( Client != NULL );
assert( Req != NULL );
if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return CONNECTED;
/* Falsche Anzahl Parameter? */
if( Req->argc != 2 ) return CONNECTED;
if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
else from = Client;
if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
to = Client_Search( Req->argv[0] );
if(( to ) && ( Client_Type( to ) == CLIENT_USER ))
{
/* Okay, Ziel ist ein User */
return IRC_WriteStrClientPrefix( to, from, "NOTICE %s :%s", Client_ID( to ), Req->argv[1] );
}
else return CONNECTED;
} /* IRC_NOTICE */
GLOBAL BOOLEAN
IRC_PRIVMSG( CLIENT *Client, REQUEST *Req )
{
CLIENT *cl, *from;
CHANNEL *chan;
assert( Client != NULL );
assert( Req != NULL );
/* Falsche Anzahl Parameter? */
if( Req->argc == 0 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
if( Req->argc == 1 ) return IRC_WriteStrClient( Client, ERR_NOTEXTTOSEND_MSG, Client_ID( Client ));
if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
else from = Client;
if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
cl = Client_Search( Req->argv[0] );
if( cl )
{
/* Okay, Ziel ist ein Client. Aber ist es auch ein User? */
if( Client_Type( cl ) != CLIENT_USER ) return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] );
/* Okay, Ziel ist ein User */
if(( Client_Type( Client ) != CLIENT_SERVER ) && ( strchr( Client_Modes( cl ), 'a' )))
{
/* Ziel-User ist AWAY: Meldung verschicken */
if( ! IRC_WriteStrClient( from, RPL_AWAY_MSG, Client_ID( from ), Client_ID( cl ), Client_Away( cl ))) return DISCONNECTED;
}
/* Text senden */
if( Client_Conn( from ) > NONE ) Conn_UpdateIdle( Client_Conn( from ));
return IRC_WriteStrClientPrefix( cl, from, "PRIVMSG %s :%s", Client_ID( cl ), Req->argv[1] );
}
chan = Channel_Search( Req->argv[0] );
if( chan ) return Channel_Write( chan, from, Client, Req->argv[1] );
return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] );
} /* IRC_PRIVMSG */
GLOBAL BOOLEAN
IRC_TRACE( CLIENT *Client, REQUEST *Req )
{
CLIENT *from, *target, *c;
CONN_ID idx, idx2;
assert( Client != NULL );
assert( Req != NULL );
/* Bad number of arguments? */
if( Req->argc > 1 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
/* Search sender */
if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix );
else from = Client;
if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix );
/* Search target */
if( Req->argc == 1 ) target = Client_Search( Req->argv[0] );
else target = Client_ThisServer( );
/* Forward command to other server? */
if( target != Client_ThisServer( ))
{
if(( ! target ) || ( Client_Type( target ) != CLIENT_SERVER )) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
/* Send RPL_TRACELINK back to initiator */
idx = Client_Conn( Client ); assert( idx > NONE );
idx2 = Client_Conn( Client_NextHop( target )); assert( idx2 > NONE );
if( ! IRC_WriteStrClient( from, RPL_TRACELINK_MSG, Client_ID( from ), PACKAGE_NAME, PACKAGE_VERSION, Client_ID( target ), Client_ID( Client_NextHop( target )), Option_String( idx2 ), time( NULL ) - Conn_StartTime( idx2 ), Conn_SendQ( idx ), Conn_SendQ( idx2 ))) return DISCONNECTED;
/* Forward command */
IRC_WriteStrClientPrefix( target, from, "TRACE %s", Req->argv[0] );
return CONNECTED;
}
/* Infos about all connected servers */
c = Client_First( );
while( c )
{
if( Client_Conn( c ) > NONE )
{
/* Local client */
if( Client_Type( c ) == CLIENT_SERVER )
{
/* Server link */
if( ! IRC_WriteStrClient( from, RPL_TRACESERVER_MSG, Client_ID( from ), Client_ID( c ), Client_Mask( c ), Option_String( Client_Conn( c )))) return DISCONNECTED;
}
if(( Client_Type( c ) == CLIENT_USER ) && ( strchr( Client_Modes( c ), 'o' )))
{
/* IRC Operator */
if( ! IRC_WriteStrClient( from, RPL_TRACEOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED;
}
}
c = Client_Next( c );
}
/* Some information about us */
if( ! IRC_WriteStrClient( from, RPL_TRACESERVER_MSG, Client_ID( from ), Conf_ServerName, Client_Mask( Client_ThisServer( )), Option_String( Client_Conn( Client )))) return DISCONNECTED;
IRC_SetPenalty( Client, 3 );
return IRC_WriteStrClient( from, RPL_TRACEEND_MSG, Client_ID( from ), Conf_ServerName, PACKAGE_NAME, PACKAGE_VERSION, NGIRCd_DebugLevel );
} /* IRC_TRACE */
GLOBAL BOOLEAN
IRC_HELP( CLIENT *Client, REQUEST *Req )
{
COMMAND *cmd;
assert( Client != NULL );
assert( Req != NULL );
/* Bad number of arguments? */
if( Req->argc > 0 ) return IRC_WriteStrClient( Client, ERR_NORECIPIENT_MSG, Client_ID( Client ), Req->command );
cmd = Parse_GetCommandStruct( );
while( cmd->name )
{
if( ! IRC_WriteStrClient( Client, "NOTICE %s :%s", Client_ID( Client ), cmd->name )) return DISCONNECTED;
cmd++;
}
IRC_SetPenalty( Client, 2 );
return CONNECTED;
} /* IRC_HELP */
LOCAL CHAR *
Option_String( CONN_ID Idx )
{
STATIC CHAR option_txt[8];
INT options;
options = Conn_Options( Idx );
strcpy( option_txt, "F" ); /* No idea what this means but the original ircd sends it ... */
#ifdef ZLIB
if( options & CONN_ZIP ) strcat( option_txt, "z" );
#endif
return option_txt;
} /* Option_String */
/* -eof- */
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