X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=blobdiff_plain;f=src%2Fngircd%2Firc-info.c;h=01192570f53c988bbe1d464304ddc31214f3e526;hp=46e342711387269a1cc47d19ecf1e1dee870c388;hb=69fa6f268af88128248523b33b85aa1ab2759a82;hpb=2a7dd06ebd9cc72d45a6a4becdbef5213d7b7800 diff --git a/src/ngircd/irc-info.c b/src/ngircd/irc-info.c index 46e34271..01192570 100644 --- a/src/ngircd/irc-info.c +++ b/src/ngircd/irc-info.c @@ -1,6 +1,6 @@ /* * ngIRCd -- The Next Generation IRC Daemon - * Copyright (c)2001-2010 Alexander Barton + * 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 @@ -28,8 +28,10 @@ #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" @@ -478,6 +480,8 @@ IRC_STATS( CLIENT *Client, REQUEST *Req ) 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); @@ -516,6 +520,28 @@ IRC_STATS( CLIENT *Client, REQUEST *Req ) 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); @@ -917,56 +943,20 @@ IRC_WHO( CLIENT *Client, REQUEST *Req ) /** - * 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), @@ -974,18 +964,21 @@ IRC_WHOIS( CLIENT *Client, REQUEST *Req ) 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') @@ -998,54 +991,168 @@ IRC_WHOIS( CLIENT *Client, REQUEST *Req ) 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 */ @@ -1082,6 +1189,10 @@ IRC_WHOWAS( CLIENT *Client, REQUEST *Req ) 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, @@ -1166,38 +1277,55 @@ IRC_WHOWAS( CLIENT *Client, REQUEST *Req ) } /* 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_CountVisible(Client))) + 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 */ @@ -1308,6 +1436,10 @@ IRC_Send_NAMES( CLIENT *Client, CHANNEL *Chan ) 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;