/*
* 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
* 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 info commands
*/
-
#include "portab.h"
+/**
+ * @file
+ * IRC info commands
+ */
+
#include "imp.h"
#include <assert.h>
#include <errno.h>
#include "conn-func.h"
#include "conn-zip.h"
#include "channel.h"
+#include "class.h"
#include "conf.h"
#include "defines.h"
+#include "lists.h"
#include "log.h"
#include "messages.h"
#include "match.h"
COMMAND *cmd;
time_t time_now;
unsigned int days, hrs, mins;
+ struct list_head *list;
+ struct list_elem *list_item;
assert(Client != NULL);
assert(Req != NULL);
query = '*';
switch (query) {
+ case 'g': /* Network-wide bans ("G-Lines") */
+ case 'G':
+ case 'k': /* Server-local bans ("K-Lines") */
+ case 'K':
+ if (!Client_HasMode(from, 'o'))
+ return IRC_WriteStrClient(from, ERR_NOPRIVILEGES_MSG,
+ Client_ID(from));
+ if (query == 'g' || query == 'G')
+ list = Class_GetList(CLASS_GLINE);
+ else
+ list = Class_GetList(CLASS_KLINE);
+ list_item = Lists_GetFirst(list);
+ while (list_item) {
+ if (!IRC_WriteStrClient(from, RPL_STATSXLINE_MSG,
+ Client_ID(from), query,
+ Lists_GetMask(list_item),
+ Lists_GetValidity(list_item),
+ Lists_GetReason(list_item)))
+ return DISCONNECTED;
+ list_item = Lists_GetNext(list_item);
+ }
+ break;
case 'l': /* Link status (servers and own link) */
case 'L':
time_now = time(NULL);
strlcat(rpl, "+", sizeof(rpl));
strlcat(rpl, Client_User(c), sizeof(rpl));
strlcat(rpl, "@", sizeof(rpl));
- strlcat(rpl, Client_Hostname(c), sizeof(rpl));
+ strlcat(rpl, Client_HostnameCloaked(c), sizeof(rpl));
strlcat(rpl, " ", sizeof(rpl));
}
}
static bool
write_whoreply(CLIENT *Client, CLIENT *c, const char *channelname, const char *flags)
{
- return IRC_WriteStrClient(Client, RPL_WHOREPLY_MSG, Client_ID(Client), channelname,
- Client_User(c), Client_Hostname(c), Client_ID(Client_Introducer(c)), Client_ID(c),
- flags, Client_Hops(c), Client_Info(c));
+ return IRC_WriteStrClient(Client, RPL_WHOREPLY_MSG, Client_ID(Client),
+ channelname, Client_User(c),
+ Client_HostnameCloaked(c),
+ Client_ID(Client_Introducer(c)), Client_ID(c),
+ flags, Client_Hops(c), Client_Info(c));
}
} /* IRC_WHO */
-GLOBAL bool
-IRC_WHOIS( CLIENT *Client, REQUEST *Req )
+/**
+ * Generate WHOIS reply of one actual client.
+ *
+ * @param Client The client from which this command has been received.
+ * @param from The client requesting the information ("originator").
+ * @param c The client of which information should be returned.
+ * @returns CONNECTED or DISCONNECTED.
+ */
+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 )) 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 (!Conf_MorePrivacy && 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 */
assert( Client != NULL );
assert( Req != NULL );
+ /* Do not reveal any info on disconnected users? */
+ if (Conf_MorePrivacy)
+ return CONNECTED;
+
/* Wrong number of parameters? */
if (Req->argc > 3)
return IRC_WriteStrClient(Client, ERR_NEEDMOREPARAMS_MSG,
} /* IRC_WHOWAS */
+/**
+ * Send LUSERS reply to a client.
+ *
+ * @param Client The receipient of the information.
+ * @return CONNECTED or DISCONNECTED.
+ */
GLOBAL bool
-IRC_Send_LUSERS( CLIENT *Client )
+IRC_Send_LUSERS(CLIENT *Client)
{
unsigned long cnt;
#ifndef STRICT_RFC
unsigned long max;
#endif
- assert( Client != NULL );
+ assert(Client != NULL);
/* Users, services and serevers in the network */
- if( ! IRC_WriteStrClient( Client, RPL_LUSERCLIENT_MSG, Client_ID( Client ), Client_UserCount( ), Client_ServiceCount( ), Client_ServerCount( ))) return DISCONNECTED;
+ if (!IRC_WriteStrClient(Client, RPL_LUSERCLIENT_MSG, Client_ID(Client),
+ Client_UserCount(), Client_ServiceCount(),
+ Client_ServerCount()))
+ return DISCONNECTED;
/* Number of IRC operators */
cnt = Client_OperCount( );
- if( cnt > 0 )
- {
- if( ! IRC_WriteStrClient( Client, RPL_LUSEROP_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
+ if (cnt > 0) {
+ if (!IRC_WriteStrClient(Client, RPL_LUSEROP_MSG,
+ Client_ID(Client), cnt))
+ return DISCONNECTED;
}
/* Unknown connections */
cnt = Client_UnknownCount( );
- if( cnt > 0 )
- {
- if( ! IRC_WriteStrClient( Client, RPL_LUSERUNKNOWN_MSG, Client_ID( Client ), cnt )) return DISCONNECTED;
+ if (cnt > 0) {
+ if (!IRC_WriteStrClient(Client, RPL_LUSERUNKNOWN_MSG,
+ Client_ID(Client), cnt))
+ return DISCONNECTED;
}
/* Number of created channels */
- if( ! IRC_WriteStrClient( Client, RPL_LUSERCHANNELS_MSG, Client_ID( Client ), Channel_Count( ))) return DISCONNECTED;
+ if (!IRC_WriteStrClient(Client, RPL_LUSERCHANNELS_MSG,
+ Client_ID(Client), Channel_Count()))
+ return DISCONNECTED;
/* Number of local users, services and servers */
- if( ! IRC_WriteStrClient( Client, RPL_LUSERME_MSG, Client_ID( Client ), Client_MyUserCount( ), Client_MyServiceCount( ), Client_MyServerCount( ))) return DISCONNECTED;
+ if (!IRC_WriteStrClient(Client, RPL_LUSERME_MSG, Client_ID(Client),
+ Client_MyUserCount(), Client_MyServiceCount(),
+ Client_MyServerCount()))
+ return DISCONNECTED;
#ifndef STRICT_RFC
/* Maximum number of local users */
return ret;
}
#else
-static inline bool Show_MOTD_SSLInfo(UNUSED CLIENT *c) { return true; }
+static inline bool
+Show_MOTD_SSLInfo(UNUSED CLIENT *c)
+{ return true; }
#endif
GLOBAL bool
if( Channel_IsMemberOf( Chan, Client )) is_member = true;
else is_member = false;
+ /* Do not print info on channel memberships to anyone that is not member? */
+ if (Conf_MorePrivacy && !is_member)
+ return CONNECTED;
+
/* Secret channel? */
if( ! is_member && strchr( Channel_Modes( Chan ), 's' )) return CONNECTED;
} /* IRC_Send_NAMES */
-
/**
* Send the ISUPPORT numeric (005).
* This numeric indicates the features that are supported by this server.
* See <http://www.irc.org/tech_docs/005.html> for details.
*/
GLOBAL bool
-IRC_Send_ISUPPORT PARAMS((CLIENT * Client))
+IRC_Send_ISUPPORT(CLIENT * Client)
{
if (!IRC_WriteStrClient(Client, RPL_ISUPPORT1_MSG, Client_ID(Client),
Conf_MaxJoins))
projects / ngircd-alex.git / blobdiff