/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001-2010 Alexander Barton <alex@barton.de>
+ * Copyright (c)2001-2011 Alexander Barton (alex@barton.de) and Contributors.
*
* 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
/**
- * Handler for the IRC "WHOIS" command.
- *
- * See RFC 2812, 3.6.2 "Whois query".
+ * Generate WHOIS reply of one actual client.
*
* @param Client The client from which this command has been received.
- * @param Req Request structure with prefix and all parameters.
- * @return CONNECTED or DISCONNECTED.
+ * @param from The client requesting the information ("originator").
+ * @param c The client of which information should be returned.
+ * @returns CONNECTED or DISCONNECTED.
*/
-GLOBAL bool
-IRC_WHOIS( CLIENT *Client, REQUEST *Req )
+static bool
+IRC_WHOIS_SendReply(CLIENT *Client, CLIENT *from, CLIENT *c)
{
- CLIENT *from, *target, *c;
char str[LINE_LEN + 1];
CL2CHAN *cl2chan;
CHANNEL *chan;
- assert( Client != NULL );
- assert( Req != NULL );
-
- /* Bad number of parameters? */
- if (Req->argc < 1 || Req->argc > 2)
- return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
- Client_ID(Client), Req->command);
-
- /* Search client */
- c = Client_Search(Req->argv[Req->argc - 1]);
- if (!c || (Client_Type(c) != CLIENT_USER
- && Client_Type(c) != CLIENT_SERVICE))
- return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
- Client_ID(Client),
- Req->argv[Req->argc - 1]);
-
- /* Search sender of the WHOIS */
- 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 );
-
- /* Forward to other server? */
- if( Req->argc > 1 )
- {
- /* Search target server (can be specified as nick of that server!) */
- target = Client_Search( Req->argv[0] );
- if( ! target ) return IRC_WriteStrClient( from, ERR_NOSUCHSERVER_MSG, Client_ID( from ), Req->argv[0] );
- }
- 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], Req->argv[1] );
-
/* Nick, user, hostname and client info */
if (!IRC_WriteStrClient(from, RPL_WHOISUSER_MSG, Client_ID(from),
Client_ID(c), Client_User(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;
+ 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 */
- snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
- cl2chan = Channel_FirstChannelOf( c );
- while( cl2chan )
- {
- chan = Channel_GetChannel( cl2chan );
- assert( chan != NULL );
+ snprintf(str, sizeof(str), RPL_WHOISCHANNELS_MSG,
+ Client_ID(from), Client_ID(c));
+ cl2chan = Channel_FirstChannelOf(c);
+ while (cl2chan) {
+ chan = Channel_GetChannel(cl2chan);
+ assert(chan != NULL);
/* next */
- cl2chan = Channel_NextChannelOf( c, cl2chan );
+ cl2chan = Channel_NextChannelOf(c, cl2chan);
/* Secret channel? */
if (strchr(Channel_Modes(chan), 's')
continue;
/* Concatenate channel names */
- if( str[strlen( str ) - 1] != ':' ) strlcat( str, " ", sizeof( str ));
- if( strchr( Channel_UserModes( chan, c ), 'o' )) strlcat( str, "@", sizeof( str ));
- else if( strchr( Channel_UserModes( chan, c ), 'v' )) strlcat( str, "+", sizeof( str ));
- strlcat( str, Channel_Name( chan ), sizeof( str ));
+ if (str[strlen(str) - 1] != ':')
+ strlcat(str, " ", sizeof(str));
- if( strlen( str ) > ( LINE_LEN - CHANNEL_NAME_LEN - 4 ))
- {
+ strlcat(str, who_flags_qualifier(Channel_UserModes(chan, c)),
+ sizeof(str));
+ strlcat(str, Channel_Name(chan), sizeof(str));
+
+ if (strlen(str) > (LINE_LEN - CHANNEL_NAME_LEN - 4)) {
/* Line becomes too long: send it! */
- if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
- snprintf( str, sizeof( str ), RPL_WHOISCHANNELS_MSG, Client_ID( from ), Client_ID( c ));
+ if (!IRC_WriteStrClient(Client, "%s", str))
+ return DISCONNECTED;
+ snprintf(str, sizeof(str), RPL_WHOISCHANNELS_MSG,
+ Client_ID(from), Client_ID(c));
}
}
- if( str[strlen( str ) - 1] != ':')
- {
+ if(str[strlen(str) - 1] != ':') {
/* There is data left to send: */
- if( ! IRC_WriteStrClient( Client, "%s", str )) return DISCONNECTED;
+ 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;
- }
+ if (Client_HasMode(c, 'o') &&
+ !IRC_WriteStrClient(from, RPL_WHOISOPERATOR_MSG,
+ Client_ID(from), Client_ID(c)))
+ return DISCONNECTED;
/* Connected using SSL? */
- if (Conn_UsesSSL(Client_Conn(c))) {
- if (!IRC_WriteStrClient
- (from, RPL_WHOISSSL_MSG, Client_ID(from), Client_ID(c)))
+ if (Conn_UsesSSL(Client_Conn(c)) &&
+ !IRC_WriteStrClient(from, RPL_WHOISSSL_MSG,
+ Client_ID(from), Client_ID(c)))
return DISCONNECTED;
- }
/* Idle and signon time (local clients only!) */
- if (Client_Conn(c) > NONE ) {
- if (! IRC_WriteStrClient(from, RPL_WHOISIDLE_MSG,
- Client_ID(from), Client_ID(c),
- (unsigned long)Conn_GetIdle(Client_Conn(c)),
- (unsigned long)Conn_GetSignon(Client_Conn(c))))
- return DISCONNECTED;
- }
+ if (Client_Conn(c) > NONE &&
+ !IRC_WriteStrClient(from, RPL_WHOISIDLE_MSG,
+ Client_ID(from), Client_ID(c),
+ (unsigned long)Conn_GetIdle(Client_Conn(c)),
+ (unsigned long)Conn_GetSignon(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;
+ if (Client_HasMode(c, 'a') &&
+ !IRC_WriteStrClient(from, RPL_AWAY_MSG,
+ Client_ID(from), Client_ID(c),
+ Client_Away(c)))
+ return DISCONNECTED;
+
+ return IRC_WriteStrClient(from, RPL_ENDOFWHOIS_MSG,
+ Client_ID(from), Client_ID(c));
+} /* IRC_WHOIS_SendReply */
+
+
+/**
+ * Handler for the IRC "WHOIS" command.
+ *
+ * See RFC 2812, 3.6.2 "Whois query".
+ *
+ * @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_WHOIS( CLIENT *Client, REQUEST *Req )
+{
+ CLIENT *from, *target, *c;
+ unsigned int match_count = 0, found = 0;
+ bool has_wildcards, is_remote;
+ bool got_wildcard = false;
+ const char *query;
+
+ assert( Client != NULL );
+ assert( Req != NULL );
+
+ /* Bad number of parameters? */
+ if (Req->argc < 1 || Req->argc > 2)
+ return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
+ Client_ID(Client), Req->command);
+
+ /* Search sender of the WHOIS */
+ if (Client_Type(Client) == CLIENT_SERVER) {
+ from = Client_Search(Req->prefix);
+ } else {
+ IRC_SetPenalty(Client, 1);
+ from = Client;
}
+ if (!from)
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->prefix);
+
+ /* Get target server for this command */
+ if (Req->argc > 1) {
+ /* Search the target server, which can be specified as a
+ * nick name on that server as well: */
+ target = Client_Search(Req->argv[0]);
+ if (!target)
+ return IRC_WriteStrClient(from, ERR_NOSUCHSERVER_MSG,
+ Client_ID(from), Req->argv[0]);
+ } else
+ target = Client_ThisServer();
+ assert(target != NULL);
+
+ /* Forward to other server? */
+ if (Client_NextHop(target) != Client_ThisServer() &&
+ Client_Type(Client_NextHop(target)) == CLIENT_SERVER)
+ return IRC_WriteStrClientPrefix(target, from,
+ "WHOIS %s :%s",
+ Req->argv[0], Req->argv[1]);
+
+ is_remote = Client_Conn(from) < 0;
+ for (query = strtok(Req->argv[Req->argc - 1], ",");
+ query && found < 3;
+ query = strtok(NULL, ","), found++)
+ {
+ has_wildcards = query[strcspn(query, "*?")] != 0;
+ /*
+ * follows ircd 2.10 implementation:
+ * - handle up to 3 targets
+ * - no wildcards for remote clients
+ * - only one wildcard target per local client
+ *
+ * also, at most ten matches are returned.
+ */
+ if (!has_wildcards || is_remote) {
+ c = Client_Search(query);
+ if (c) {
+ if (!IRC_WHOIS_SendReply(Client, from, c))
+ return DISCONNECTED;
+ } else {
+ if (!IRC_WriteStrClient(Client,
+ ERR_NOSUCHNICK_MSG,
+ Client_ID(Client),
+ query))
+ return DISCONNECTED;
+ }
+ continue;
+ }
+ if (got_wildcard) {
+ /* we already handled one wildcard query */
+ if (!IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), query))
+ return DISCONNECTED;
+ continue;
+ }
+ got_wildcard = true;
+ IRC_SetPenalty(Client, 3);
- /* End of Whois */
- return IRC_WriteStrClient( from, RPL_ENDOFWHOIS_MSG, Client_ID( from ), Client_ID( c ));
+ for (c = Client_First(); c && match_count < 10; c = Client_Next(c)) {
+ if (Client_Type(c) != CLIENT_USER)
+ continue;
+ if (!MatchCaseInsensitive(query, Client_ID(c)))
+ continue;
+ if (!IRC_WHOIS_SendReply(Client, from, c))
+ return DISCONNECTED;
+ match_count++;
+ }
+
+ if (match_count == 0)
+ return IRC_WriteStrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->argv[Req->argc - 1]);
+ }
+ return CONNECTED;
} /* IRC_WHOIS */
projects / ngircd-alex.git / commitdiff