X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Firc.c;h=ff75b0343cfed4819ee8b2063e7c736b82798fbe;hp=d65e5c9bb99eba308cd3cf46f14f442ccabc568e;hb=1e83e6662f0f3c28d95d189da221ffd246d985e3;hpb=64322810fa04fbe4078d47c2eed49bd39bd62571 diff --git a/src/ngircd/irc.c b/src/ngircd/irc.c index d65e5c9b..ff75b034 100644 --- a/src/ngircd/irc.c +++ b/src/ngircd/irc.c @@ -1,264 +1,868 @@ /* * ngIRCd -- The Next Generation IRC Daemon - * Copyright (c)2001 by Alexander Barton (alex@barton.de) + * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de) * * 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 comBase beteiligten Autoren finden Sie in der Datei AUTHORS. + * der an ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS. * - * $Id: irc.c,v 1.7 2001/12/25 23:25:18 alex Exp $ + * $Id: irc.c,v 1.98 2002/10/09 13:35:32 alex Exp $ * * irc.c: IRC-Befehle - * - * $Log: irc.c,v $ - * Revision 1.7 2001/12/25 23:25:18 alex - * - und nochmal Aenderungen am Logging ;-) - * - * Revision 1.6 2001/12/25 23:13:33 alex - * - Debug-Meldungen angepasst. - * - * Revision 1.5 2001/12/25 22:02:42 alex - * - neuer IRC-Befehl "/QUIT". Verbessertes Logging & Debug-Ausgaben. - * - * Revision 1.4 2001/12/25 19:19:30 alex - * - bessere Fehler-Abfragen, diverse Bugfixes. - * - Nicks werden nur einmal vergeben :-) - * - /MOTD wird unterstuetzt. - * - * Revision 1.3 2001/12/24 01:34:06 alex - * - USER und NICK wird nun in beliebiger Reihenfolge akzeptiert (wg. BitchX) - * - MOTD-Ausgabe begonnen zu implementieren. - * - * Revision 1.2 2001/12/23 21:57:16 alex - * - erste IRC-Befehle zu implementieren begonnen. - * - * Revision 1.1 2001/12/14 08:13:43 alex - * - neues Modul begonnen :-) */ -#include -#include "global.h" +#include "portab.h" -#include +#include "imp.h" #include -#include +#include #include +#include #include +#include "ngircd.h" +#include "conn.h" #include "client.h" +#include "channel.h" +#include "resolve.h" +#include "conf.h" +#include "conn.h" +#include "irc-write.h" #include "log.h" #include "messages.h" #include "parse.h" +#include "tool.h" -#include +#include "exp.h" #include "irc.h" -#define CONNECTED TRUE -#define DISCONNECTED FALSE +GLOBAL BOOLEAN +IRC_MOTD( CLIENT *Client, REQUEST *Req ) +{ + assert( Client != NULL ); + assert( Req != NULL ); + if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); -LOCAL BOOLEAN Check_Valid_User( CLIENT *Client ); + /* Falsche Anzahl Parameter? */ + if( Req->argc != 0 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); -LOCAL BOOLEAN Hello_User( CLIENT *Client ); -LOCAL BOOLEAN Show_MOTD( CLIENT *Client ); + return IRC_Show_MOTD( Client ); +} /* IRC_MOTD */ -GLOBAL VOID IRC_Init( VOID ) +GLOBAL BOOLEAN +IRC_PRIVMSG( CLIENT *Client, REQUEST *Req ) { -} /* IRC_Init */ + CLIENT *cl, *from; + CHANNEL *chan; + + assert( Client != NULL ); + assert( Req != NULL ); + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); -GLOBAL VOID IRC_Exit( VOID ) -{ -} /* IRC_Exit */ + /* 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_WriteStr_Client( CLIENT *Client, CLIENT *Prefix, CHAR *Format, ... ) + +GLOBAL BOOLEAN +IRC_NOTICE( CLIENT *Client, REQUEST *Req ) { - /* Text an Clients, lokal bzw. remote, senden. */ + 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 */ - CHAR buffer[1000]; - BOOLEAN ok = CONNECTED; - va_list ap; +GLOBAL BOOLEAN +IRC_NAMES( CLIENT *Client, REQUEST *Req ) +{ + CHAR rpl[COMMAND_LEN], *ptr; + CLIENT *target, *from, *c; + CHANNEL *chan; + assert( Client != NULL ); - assert( Format != NULL ); + assert( Req != NULL ); - va_start( ap, Format ); + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); - if( Client->conn_id != NONE ) + /* Falsche Anzahl Parameter? */ + if( Req->argc > 2 ) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* From aus Prefix ermitteln */ + if( Client_Type( Client ) == CLIENT_SERVER ) from = Client_Search( Req->prefix ); + else from = Client; + if( ! from ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix ); + + if( Req->argc == 2 ) { - /* Lokaler Client */ - vsnprintf( buffer, 1000, Format, ap ); - if( Prefix ) ok = Conn_WriteStr( Client->conn_id, ":%s %s", Prefix->host, buffer ); - else ok = Conn_WriteStr( Client->conn_id, buffer ); + /* an anderen Server forwarden */ + target = Client_Search( Req->argv[1] ); + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] ); + + if( target != Client_ThisServer( )) + { + /* Ok, anderer Server ist das Ziel: forwarden */ + return IRC_WriteStrClientPrefix( target, from, "NAMES %s :%s", Req->argv[0], Req->argv[1] ); + } } - else + + if( Req->argc > 0 ) { - /* Remote-Client */ - Log( LOG_EMERG, "not implemented: IRC_WriteStr_Client()" ); + /* bestimmte Channels durchgehen */ + ptr = strtok( Req->argv[0], "," ); + while( ptr ) + { + chan = Channel_Search( ptr ); + if( chan ) + { + /* Namen ausgeben */ + if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED; + } + if( ! IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), ptr )) return DISCONNECTED; + + /* naechsten Namen ermitteln */ + ptr = strtok( NULL, "," ); + } + return CONNECTED; } + + /* alle Channels durchgehen */ + chan = Channel_First( ); + while( chan ) + { + /* Namen ausgeben */ + if( ! IRC_Send_NAMES( from, chan )) return DISCONNECTED; - va_end( ap ); - return ok; -} /* IRC_WriteStr_Client */ + /* naechster Channel */ + chan = Channel_Next( chan ); + } + /* Nun noch alle Clients ausgeben, die in keinem Channel sind */ + c = Client_First( ); + sprintf( rpl, RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" ); + while( c ) + { + if(( Client_Type( c ) == CLIENT_USER ) && ( Channel_FirstChannelOf( c ) == NULL ) && ( ! strchr( Client_Modes( c ), 'i' ))) + { + /* Okay, das ist ein User: anhaengen */ + if( rpl[strlen( rpl ) - 1] != ':' ) strcat( rpl, " " ); + strcat( rpl, Client_ID( c )); -GLOBAL BOOLEAN IRC_PASS( CLIENT *Client, REQUEST *Req ) + if( strlen( rpl ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 )) + { + /* Zeile wird zu lang: senden! */ + if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED; + sprintf( rpl, RPL_NAMREPLY_MSG, Client_ID( from ), "*", "*" ); + } + } + + /* naechster Client */ + c = Client_Next( c ); + } + if( rpl[strlen( rpl ) - 1] != ':') + { + /* es wurden User gefunden */ + if( ! IRC_WriteStrClient( from, "%s", rpl )) return DISCONNECTED; + } + + return IRC_WriteStrClient( from, RPL_ENDOFNAMES_MSG, Client_ID( from ), "*" ); +} /* IRC_NAMES */ + + +GLOBAL BOOLEAN +IRC_ISON( CLIENT *Client, REQUEST *Req ) { + CHAR rpl[COMMAND_LEN]; + CLIENT *c; + CHAR *ptr; + INT i; + assert( Client != NULL ); assert( Req != NULL ); - if( Client->type == CLIENT_UNKNOWN ) + if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + strcpy( rpl, RPL_ISON_MSG ); + for( i = 0; i < Req->argc; i++ ) { - Log( LOG_DEBUG, "Connection %d: got PASS command ...", Client->conn_id ); - return IRC_WriteStr_Client( Client, This_Server, ERR_UNKNOWNCOMMAND_MSG, Req->command ); + ptr = strtok( Req->argv[i], " " ); + while( ptr ) + { + ngt_TrimStr( ptr ); + c = Client_Search( ptr ); + if( c && ( Client_Type( c ) == CLIENT_USER )) + { + /* Dieser Nick ist "online" */ + strcat( rpl, ptr ); + strcat( rpl, " " ); + } + ptr = strtok( NULL, " " ); + } } - else return IRC_WriteStr_Client( Client, This_Server, ERR_ALREADYREGISTRED_MSG ); -} /* IRC_PASS */ + if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0'; + return IRC_WriteStrClient( Client, "%s", rpl, Client_ID( Client ) ); +} /* IRC_ISON */ -GLOBAL BOOLEAN IRC_NICK( CLIENT *Client, REQUEST *Req ) + +GLOBAL BOOLEAN +IRC_WHOIS( CLIENT *Client, REQUEST *Req ) { - CLIENT *c; + CLIENT *from, *target, *c; + CHAR str[LINE_LEN + 1], *ptr = NULL; + CL2CHAN *cl2chan; + CHANNEL *chan; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc < 1 ) || ( Req->argc > 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Client suchen */ + c = Client_Search( Req->argv[Req->argc - 1] ); + if(( ! c ) || ( Client_Type( c ) != CLIENT_USER )) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->argv[Req->argc - 1] ); + + /* Empfaenger des WHOIS suchen */ + 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 ); + + /* Forwarden an anderen Server? */ + if( Req->argc > 1 ) + { + /* angegebenen Ziel-Server suchen */ + target = Client_Search( Req->argv[1] ); + if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[1] ); + ptr = Req->argv[1]; + } + else target = Client_ThisServer( ); + + assert( target != NULL ); + + if(( Client_NextHop( target ) != Client_ThisServer( )) && ( Client_Type( Client_NextHop( target )) == CLIENT_SERVER )) return IRC_WriteStrClientPrefix( target, from, "WHOIS %s :%s", Req->argv[0], ptr ); + + /* Nick, User und Name */ + if( ! IRC_WriteStrClient( from, RPL_WHOISUSER_MSG, Client_ID( from ), Client_ID( c ), Client_User( c ), Client_Hostname( c ), Client_Info( c ))) return DISCONNECTED; + + /* Server */ + if( ! IRC_WriteStrClient( from, RPL_WHOISSERVER_MSG, Client_ID( from ), Client_ID( c ), Client_ID( Client_Introducer( c )), Client_Info( Client_Introducer( c )))) return DISCONNECTED; + + /* Channels */ + sprintf( str, RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c )); + cl2chan = Channel_FirstChannelOf( c ); + while( cl2chan ) + { + chan = Channel_GetChannel( cl2chan ); + assert( chan != NULL ); + + /* Channel-Name anhaengen */ + if( str[strlen( str ) - 1] != ':' ) strcat( str, " " ); + if( strchr( Channel_UserModes( chan, c ), 'o' )) strcat( str, "@" ); + else if( strchr( Channel_UserModes( chan, c ), 'v' )) strcat( str, "+" ); + strcat( str, Channel_Name( chan )); + + if( strlen( str ) > ( LINE_LEN - CHANNEL_NAME_LEN - 4 )) + { + /* Zeile wird zu lang: senden! */ + if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED; + sprintf( str, RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c )); + } + /* naechstes Mitglied suchen */ + cl2chan = Channel_NextChannelOf( c, cl2chan ); + } + if( str[strlen( str ) - 1] != ':') + { + /* Es sind noch Daten da, die gesendet werden muessen */ + if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED; + } + + /* IRC-Operator? */ + if( Client_HasMode( c, 'o' )) + { + if( ! IRC_WriteStrClient( from, RPL_WHOISOPERATOR_MSG, Client_ID( from ), Client_ID( c ))) return DISCONNECTED; + } + + /* Idle (nur lokale Clients) */ + if( Client_Conn( c ) > NONE ) + { + if( ! IRC_WriteStrClient( from, RPL_WHOISIDLE_MSG, Client_ID( from ), Client_ID( c ), Conn_GetIdle( Client_Conn ( c )))) return DISCONNECTED; + } + + /* Away? */ + if( Client_HasMode( c, 'a' )) + { + if( ! IRC_WriteStrClient( from, RPL_AWAY_MSG, Client_ID( from ), Client_ID( c ), Client_Away( c ))) return DISCONNECTED; + } + + /* End of Whois */ + return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c )); +} /* IRC_WHOIS */ + + +GLOBAL BOOLEAN +IRC_WHO( CLIENT *Client, REQUEST *Req ) +{ + BOOLEAN ok, only_ops; + CHAR flags[8], *ptr; + CL2CHAN *cl2chan; + CHANNEL *chan; + CLIENT *c; + assert( Client != NULL ); assert( Req != NULL ); - if( Client->type != CLIENT_SERVER && Client->type != CLIENT_SERVICE ) + if( Client_Type( Client ) != CLIENT_USER ) 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 ); + + only_ops = FALSE; + chan = NULL; + + if( Req->argc == 2 ) { - /* Falsche Anzahl Parameter? */ - if( Req->argc != 1 ) return IRC_WriteStr_Client( Client, This_Server, ERR_NEEDMOREPARAMS_MSG ); + /* Nur OPs anzeigen? */ + if( strcmp( Req->argv[1], "o" ) == 0 ) only_ops = TRUE; +#ifdef STRICT_RFC + else return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); +#endif + } + + if( Req->argc >= 1 ) + { + /* wurde ein Channel oder Nick-Mask angegeben? */ + chan = Channel_Search( Req->argv[0] ); + } - /* Nick zu lang? */ - if( strlen( Req->argv[0] ) > CLIENT_NICK_LEN ) return IRC_WriteStr_Client( Client, This_Server, ERR_ERRONEUSNICKNAME_MSG, Req->argv[0] ); + if( chan ) + { + /* User eines Channels ausgeben */ + if( ! IRC_Send_WHO( Client, chan, only_ops )) return DISCONNECTED; + } - /* pruefen, ob Nick bereits vergeben */ - c = My_Clients; - while( c ) + c = Client_First( ); + while( c ) + { + if(( Client_Type( c ) == CLIENT_USER ) && ( ! strchr( Client_Modes( c ), 'i' ))) { - if( strcasecmp( c->nick, Req->argv[0] ) == 0 ) + ok = FALSE; + if( Req->argc == 0 ) ok = TRUE; + else { - /* den Nick gibt es bereits */ - return IRC_WriteStr_Client( Client, This_Server, ERR_NICKNAMEINUSE_MSG, Req->argv[0] ); + if( strcasecmp( Req->argv[0], Client_ID( c )) == 0 ) ok = TRUE; + else if( strcmp( Req->argv[0], "0" ) == 0 ) ok = TRUE; + } + + if( ok && (( ! only_ops ) || ( strchr( Client_Modes( c ), 'o' )))) + { + /* Flags zusammenbasteln */ + strcpy( flags, "H" ); + if( strchr( Client_Modes( c ), 'o' )) strcat( flags, "*" ); + + /* ausgeben */ + cl2chan = Channel_FirstChannelOf( c ); + if( cl2chan ) ptr = Channel_Name( Channel_GetChannel( cl2chan )); + else ptr = "*"; + if( ! IRC_WriteStrClient( Client, RPL_WHOREPLY_MSG, Client_ID( Client ), ptr, Client_User( c ), Client_Hostname( c ), Client_ID( Client_Introducer( c )), Client_ID( c ), flags, Client_Hops( c ), Client_Info( c ))) return DISCONNECTED; } - c = c->next; } - /* Client-Nick registrieren */ - strcpy( Client->nick, Req->argv[0] ); + /* naechster Client */ + c = Client_Next( c ); + } + + if( chan ) return IRC_WriteStrClient( Client, RPL_ENDOFWHO_MSG, Client_ID( Client ), Channel_Name( chan )); + else if( Req->argc == 0 ) return IRC_WriteStrClient( Client, RPL_ENDOFWHO_MSG, Client_ID( Client ), "*" ); + else return IRC_WriteStrClient( Client, RPL_ENDOFWHO_MSG, Client_ID( Client ), Req->argv[0] ); +} /* IRC_WHO */ + + +GLOBAL BOOLEAN +IRC_USERHOST( CLIENT *Client, REQUEST *Req ) +{ + CHAR rpl[COMMAND_LEN]; + CLIENT *c; + INT max, i; + + assert( Client != NULL ); + assert( Req != NULL ); + + if( Client_Type( Client ) != CLIENT_USER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc < 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); - if( Client->type != CLIENT_USER ) + if( Req->argc > 5 ) max = 5; + else max = Req->argc; + + strcpy( rpl, RPL_USERHOST_MSG ); + for( i = 0; i < max; i++ ) + { + c = Client_Search( Req->argv[i] ); + if( c && ( Client_Type( c ) == CLIENT_USER )) { - /* Neuer Client */ - Log( LOG_DEBUG, "Connection %d: got NICK command ...", Client->conn_id ); - if( Client->type == CLIENT_GOTUSER ) return Hello_User( Client ); - else Client->type = CLIENT_GOTNICK; + /* Dieser Nick ist "online" */ + strcat( rpl, Client_ID( c )); + if( Client_HasMode( c, 'o' )) strcat( rpl, "*" ); + strcat( rpl, "=" ); + if( Client_HasMode( c, 'a' )) strcat( rpl, "-" ); + else strcat( rpl, "+" ); + strcat( rpl, Client_User( c )); + strcat( rpl, "@" ); + strcat( rpl, Client_Hostname( c )); + strcat( rpl, " " ); } - return CONNECTED; } - else return IRC_WriteStr_Client( Client, This_Server, ERR_ALREADYREGISTRED_MSG ); -} /* IRC_NICK */ + if( rpl[strlen( rpl ) - 1] == ' ' ) rpl[strlen( rpl ) - 1] = '\0'; + + return IRC_WriteStrClient( Client, "%s", rpl, Client_ID( Client ) ); +} /* IRC_USERHOST */ -GLOBAL BOOLEAN IRC_USER( CLIENT *Client, REQUEST *Req ) +GLOBAL BOOLEAN +IRC_ERROR( CLIENT *Client, REQUEST *Req ) { assert( Client != NULL ); assert( Req != NULL ); - if( Client->type == CLIENT_UNKNOWN || Client->type == CLIENT_GOTNICK || Client->type == CLIENT_GOTPASS ) + 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_LUSERS( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *target, *from; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( 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 ); + + /* Absender ermitteln */ + 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 ); + + /* An anderen Server forwarden? */ + if( Req->argc == 2 ) { - /* Falsche Anzahl Parameter? */ - if( Req->argc != 4 ) return IRC_WriteStr_Client( Client, This_Server, ERR_NEEDMOREPARAMS_MSG ); + target = Client_Search( Req->argv[1] ); + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[1] ); + else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LUSERS %s %s", Req->argv[0], Req->argv[1] ); + } - strncpy( Client->user, Req->argv[0], CLIENT_USER_LEN ); - Client->user[CLIENT_USER_LEN] = '\0'; - strncpy( Client->name, Req->argv[3], CLIENT_NAME_LEN ); - Client->name[CLIENT_NAME_LEN] = '\0'; + /* Wer ist der Absender? */ + if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix ); + else target = Client; + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + + IRC_Send_LUSERS( target ); - Log( LOG_DEBUG, "Connection %d: got USER command ...", Client->conn_id ); - if( Client->type == CLIENT_GOTNICK ) return Hello_User( Client ); - else Client->type = CLIENT_GOTUSER; - return CONNECTED; + return CONNECTED; +} /* IRC_LUSERS */ + + +GLOBAL BOOLEAN +IRC_LINKS( CLIENT *Client, REQUEST *Req ) +{ + CLIENT *target, *from, *c; + CHAR *mask; + + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( 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 ); + + /* Server-Mask ermitteln */ + if( Req->argc > 0 ) mask = Req->argv[Req->argc - 1]; + else mask = "*"; + + /* Absender ermitteln */ + 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 ); + + /* An anderen Server forwarden? */ + if( Req->argc == 2 ) + { + target = Client_Search( Req->argv[0] ); + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] ); + else if( target != Client_ThisServer( )) return IRC_WriteStrClientPrefix( target, from, "LINKS %s %s", Req->argv[0], Req->argv[1] ); } - else if( Client->type == CLIENT_USER || Client->type == CLIENT_SERVER || Client->type == CLIENT_SERVICE ) + + /* Wer ist der Absender? */ + if( Client_Type( Client ) == CLIENT_SERVER ) target = Client_Search( Req->prefix ); + else target = Client; + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHNICK_MSG, Client_ID( Client ), Req->prefix ); + + c = Client_First( ); + while( c ) { - return IRC_WriteStr_Client( Client, This_Server, ERR_ALREADYREGISTRED_MSG ); + if( Client_Type( c ) == CLIENT_SERVER ) + { + if( ! IRC_WriteStrClient( target, RPL_LINKS_MSG, Client_ID( target ), Client_ID( c ), Client_ID( Client_TopServer( c ) ? Client_TopServer( c ) : Client_ThisServer( )), Client_Hops( c ), Client_Info( c ))) return DISCONNECTED; + } + c = Client_Next( c ); } - else return IRC_WriteStr_Client( Client, This_Server, ERR_NOTREGISTERED_MSG ); -} /* IRC_USER */ + + return IRC_WriteStrClient( target, RPL_ENDOFLINKS_MSG, Client_ID( target ), mask ); +} /* IRC_LINKS */ -GLOBAL BOOLEAN IRC_QUIT( CLIENT *Client, REQUEST *Req ) +GLOBAL BOOLEAN +IRC_VERSION( CLIENT *Client, REQUEST *Req ) { + CLIENT *target, *prefix; + assert( Client != NULL ); assert( Req != NULL ); - if( Client->type != CLIENT_SERVER && Client->type != CLIENT_SERVICE ) + /* Falsche Anzahl Parameter? */ + if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); + + /* Ziel suchen */ + if( Req->argc == 1 ) target = Client_Search( Req->argv[0] ); + else target = Client_ThisServer( ); + + /* Prefix ermitteln */ + if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix ); + else prefix = Client; + if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix ); + + /* An anderen Server weiterleiten? */ + if( target != Client_ThisServer( )) { - /* Falsche Anzahl Parameter? */ - if( Req->argc > 1 ) return IRC_WriteStr_Client( Client, This_Server, ERR_NEEDMOREPARAMS_MSG ); + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] ); - Conn_Close( Client->conn_id, "Client wants to quit." ); - return DISCONNECTED; + /* forwarden */ + IRC_WriteStrClientPrefix( target, prefix, "VERSION %s", Req->argv[0] ); + return CONNECTED; } - else return IRC_WriteStr_Client( Client, This_Server, ERR_NOTREGISTERED_MSG ); -} /* IRC_QUIT */ + + /* mit Versionsinfo antworten */ + return IRC_WriteStrClient( Client, RPL_VERSION_MSG, Client_ID( prefix ), PACKAGE, VERSION, NGIRCd_DebugLevel, Conf_ServerName, NGIRCd_VersionAddition( )); +} /* IRC_VERSION */ -GLOBAL BOOLEAN IRC_MOTD( CLIENT *Client, REQUEST *Req ) +GLOBAL BOOLEAN +IRC_KILL( CLIENT *Client, REQUEST *Req ) { + CLIENT *prefix, *c; + assert( Client != NULL ); assert( Req != NULL ); - if( ! Check_Valid_User( Client )) return CONNECTED; + if( Client_Type( Client ) != CLIENT_SERVER ) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); /* Falsche Anzahl Parameter? */ - if( Req->argc != 0 ) return IRC_WriteStr_Client( Client, This_Server, ERR_NEEDMOREPARAMS_MSG ); + if(( Req->argc != 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); - return Show_MOTD( Client ); -} /* IRC_MOTD */ + prefix = Client_Search( Req->prefix ); + if( ! prefix ) + { + Log( LOG_WARNING, "Got KILL with invalid prefix: \"%s\"!", Req->prefix ); + prefix = Client_ThisServer( ); + } + + Log( LOG_NOTICE, "Got KILL command from \"%s\" for \"%s\": %s", Client_Mask( prefix ), Req->argv[0], Req->argv[1] ); + + /* andere Server benachrichtigen */ + IRC_WriteStrServersPrefix( Client, prefix, "KILL %s :%s", Req->argv[0], Req->argv[1] ); + + /* haben wir selber einen solchen Client? */ + c = Client_Search( Req->argv[0] ); + if( c ) + { + /* Ja, wir haben einen solchen Client */ + if( Client_Conn( c ) != NONE ) Conn_Close( Client_Conn( c ), NULL, Req->argv[1], TRUE ); + else Client_Destroy( c, NULL, Req->argv[1], TRUE ); + } + else Log( LOG_NOTICE, "Client with nick \"%s\" is unknown here.", Req->argv[0] ); + + return CONNECTED; +} /* IRC_KILL */ -LOCAL BOOLEAN Check_Valid_User( CLIENT *Client ) +GLOBAL BOOLEAN +IRC_ADMIN(CLIENT *Client, REQUEST *Req ) { + CLIENT *target, *prefix; + assert( Client != NULL ); + assert( Req != NULL ); + + if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return IRC_WriteStrClient( Client, ERR_NOTREGISTERED_MSG, Client_ID( Client )); + + /* Falsche Anzahl Parameter? */ + if(( Req->argc > 1 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command ); - if( Client->type != CLIENT_USER ) + /* Ziel suchen */ + if( Req->argc == 1 ) target = Client_Search( Req->argv[0] ); + else target = Client_ThisServer( ); + + /* Prefix ermitteln */ + if( Client_Type( Client ) == CLIENT_SERVER ) prefix = Client_Search( Req->prefix ); + else prefix = Client; + if( ! prefix ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->prefix ); + + /* An anderen Server weiterleiten? */ + if( target != Client_ThisServer( )) { - IRC_WriteStr_Client( Client, This_Server, ERR_NOTREGISTERED_MSG ); - return FALSE; + if( ! target ) return IRC_WriteStrClient( Client, ERR_NOSUCHSERVER_MSG, Client_ID( Client ), Req->argv[0] ); + + /* forwarden */ + IRC_WriteStrClientPrefix( target, prefix, "ADMIN %s", Req->argv[0] ); + return CONNECTED; + } + + /* mit Versionsinfo antworten */ + if( ! IRC_WriteStrClient( Client, RPL_ADMINME_MSG, Client_ID( prefix ), Conf_ServerName )) return DISCONNECTED; + if( ! IRC_WriteStrClient( Client, RPL_ADMINLOC1_MSG, Client_ID( prefix ), Conf_ServerAdmin1 )) return DISCONNECTED; + if( ! IRC_WriteStrClient( Client, RPL_ADMINLOC2_MSG, Client_ID( prefix ), Conf_ServerAdmin2 )) return DISCONNECTED; + if( ! IRC_WriteStrClient( Client, RPL_ADMINEMAIL_MSG, Client_ID( prefix ), Conf_ServerAdminMail )) return DISCONNECTED; + + return CONNECTED; +} /* IRC_ADMIN */ + + + +GLOBAL BOOLEAN +IRC_Show_MOTD( CLIENT *Client ) +{ + BOOLEAN ok; + CHAR line[127]; + FILE *fd; + + assert( Client != NULL ); + + fd = fopen( Conf_MotdFile, "r" ); + if( ! fd ) + { + Log( LOG_WARNING, "Can't read MOTD file \"%s\": %s", Conf_MotdFile, strerror( errno )); + return IRC_WriteStrClient( Client, ERR_NOMOTD_MSG, Client_ID( Client ) ); + } + + IRC_WriteStrClient( Client, RPL_MOTDSTART_MSG, Client_ID( Client ), Client_ID( Client_ThisServer( ))); + while( TRUE ) + { + if( ! fgets( line, 126, fd )) break; + if( line[strlen( line ) - 1] == '\n' ) line[strlen( line ) - 1] = '\0'; + if( ! IRC_WriteStrClient( Client, RPL_MOTD_MSG, Client_ID( Client ), line )) + { + fclose( fd ); + return FALSE; + } } - else return TRUE; -} /* Check_Valid_User */ + ok = IRC_WriteStrClient( Client, RPL_ENDOFMOTD_MSG, Client_ID( Client ) ); + + fclose( fd ); + + return ok; +} /* IRC_Show_MOTD */ -LOCAL BOOLEAN Hello_User( CLIENT *Client ) +GLOBAL BOOLEAN +IRC_Send_NAMES( CLIENT *Client, CHANNEL *Chan ) { - Log( LOG_NOTICE, "User \"%s!%s@%s\" (%s) registered.", Client->nick, Client->user, Client->host, Client->name ); + BOOLEAN is_visible, is_member; + CHAR str[LINE_LEN + 1]; + CL2CHAN *cl2chan; + CLIENT *cl; + + assert( Client != NULL ); + assert( Chan != NULL ); + + if( Channel_IsMemberOf( Chan, Client )) is_member = TRUE; + else is_member = FALSE; + + /* Alle Mitglieder suchen */ + sprintf( str, RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan )); + cl2chan = Channel_FirstMember( Chan ); + while( cl2chan ) + { + cl = Channel_GetClient( cl2chan ); + + if( strchr( Client_Modes( cl ), 'i' )) is_visible = FALSE; + else is_visible = TRUE; - IRC_WriteStr_Client( Client, This_Server, RPL_WELCOME_MSG, Client->nick, Client->nick, Client->user, Client->host ); - IRC_WriteStr_Client( Client, This_Server, RPL_YOURHOST_MSG, Client->nick, This_Server->host ); - IRC_WriteStr_Client( Client, This_Server, RPL_CREATED_MSG, Client->nick ); - IRC_WriteStr_Client( Client, This_Server, RPL_MYINFO_MSG, Client->nick, This_Server->host ); + if( is_member || is_visible ) + { + /* Nick anhaengen */ + if( str[strlen( str ) - 1] != ':' ) strcat( str, " " ); + if( strchr( Channel_UserModes( Chan, cl ), 'o' )) strcat( str, "@" ); + else if( strchr( Channel_UserModes( Chan, cl ), 'v' )) strcat( str, "+" ); + strcat( str, Client_ID( cl )); + + if( strlen( str ) > ( LINE_LEN - CLIENT_NICK_LEN - 4 )) + { + /* Zeile wird zu lang: senden! */ + if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED; + sprintf( str, RPL_NAMREPLY_MSG, Client_ID( Client ), "=", Channel_Name( Chan )); + } + } - Client->type = CLIENT_USER; + /* naechstes Mitglied suchen */ + cl2chan = Channel_NextMember( Chan, cl2chan ); + } + if( str[strlen( str ) - 1] != ':') + { + /* Es sind noch Daten da, die gesendet werden muessen */ + if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED; + } - return Show_MOTD( Client ); -} /* Hello_User */ + return CONNECTED; +} /* IRC_Send_NAMES */ -LOCAL BOOLEAN Show_MOTD( CLIENT *Client ) +GLOBAL BOOLEAN +IRC_Send_WHO( CLIENT *Client, CHANNEL *Chan, BOOLEAN OnlyOps ) { - IRC_WriteStr_Client( Client, This_Server, RPL_MOTDSTART_MSG, Client->nick, This_Server->host ); - IRC_WriteStr_Client( Client, This_Server, RPL_MOTD_MSG, Client->nick, "Some cool IRC server welcome message ;-)" ); - return IRC_WriteStr_Client( Client, This_Server, RPL_ENDOFMOTD_MSG, Client->nick ); -} /* Show_MOTD */ + BOOLEAN is_visible, is_member; + CL2CHAN *cl2chan; + CHAR flags[8]; + CLIENT *c; + + assert( Client != NULL ); + assert( Chan != NULL ); + + if( Channel_IsMemberOf( Chan, Client )) is_member = TRUE; + else is_member = FALSE; + + /* Alle Mitglieder suchen */ + cl2chan = Channel_FirstMember( Chan ); + while( cl2chan ) + { + c = Channel_GetClient( cl2chan ); + + if( strchr( Client_Modes( c ), 'i' )) is_visible = FALSE; + else is_visible = TRUE; + + if( is_member || is_visible ) + { + /* Flags zusammenbasteln */ + strcpy( flags, "H" ); + if( strchr( Client_Modes( c ), 'o' )) strcat( flags, "*" ); + if( strchr( Channel_UserModes( Chan, c ), 'o' )) strcat( flags, "@" ); + else if( strchr( Channel_UserModes( Chan, c ), 'v' )) strcat( flags, "+" ); + + /* ausgeben */ + if(( ! OnlyOps ) || ( strchr( Client_Modes( c ), 'o' ))) + { + if( ! IRC_WriteStrClient( Client, RPL_WHOREPLY_MSG, Client_ID( Client ), Channel_Name( Chan ), Client_User( c ), Client_Hostname( c ), Client_ID( Client_Introducer( c )), Client_ID( c ), flags, Client_Hops( c ), Client_Info( c ))) return DISCONNECTED; + } + } + + /* naechstes Mitglied suchen */ + cl2chan = Channel_NextMember( Chan, cl2chan ); + } + return CONNECTED; +} /* IRC_Send_WHO */ + + +GLOBAL BOOLEAN +IRC_Send_LUSERS( CLIENT *Client ) +{ + INT cnt; + + assert( Client != NULL ); + + /* Users, Services und Serevr im Netz */ + if( ! IRC_WriteStrClient( Client, RPL_LUSERCLIENT_MSG, Client_ID( Client ), Client_UserCount( ), Client_ServiceCount( ), Client_ServerCount( ))) return DISCONNECTED; + + /* IRC-Operatoren im Netz */ + cnt = Client_OperCount( ); + if( cnt > 0 ) + { + if( ! IRC_WriteStrClient( Client, RPL_LUSEROP_MSG, Client_ID( Client ), cnt )) return DISCONNECTED; + } + + /* Unbekannt Verbindungen */ + cnt = Client_UnknownCount( ); + if( cnt > 0 ) + { + if( ! IRC_WriteStrClient( Client, RPL_LUSERUNKNOWN_MSG, Client_ID( Client ), cnt )) return DISCONNECTED; + } + + /* Channels im Netz */ + if( ! IRC_WriteStrClient( Client, RPL_LUSERCHANNELS_MSG, Client_ID( Client ), Channel_Count( ))) return DISCONNECTED; + + /* Channels im Netz */ + if( ! IRC_WriteStrClient( Client, RPL_LUSERME_MSG, Client_ID( Client ), Client_MyUserCount( ), Client_MyServiceCount( ), Client_MyServerCount( ))) return DISCONNECTED; + + return CONNECTED; +} /* IRC_Send_LUSERS */ /* -eof- */