/*
* ngIRCd -- The Next Generation IRC Daemon
- * Copyright (c)2001,2002 by Alexander Barton (alex@barton.de)
+ * Copyright (c)2001-2015 Alexander Barton (alex@barton.de) and Contributors.
*
- * 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 ngIRCd beteiligten Autoren finden Sie in der Datei AUTHORS.
- *
- * $Id: irc.c,v 1.104 2002/11/30 17:39:56 alex Exp $
- *
- * irc.c: IRC-Befehle
+ * 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.
*/
-
#include "portab.h"
-#include "imp.h"
+/**
+ * @file
+ * IRC commands
+ */
+
#include <assert.h>
+#include <stdio.h>
#include <string.h>
+#include <strings.h>
+#include <time.h>
-#include "conn.h"
-#include "client.h"
+#include "ngircd.h"
+#include "conn-func.h"
+#include "conf.h"
#include "channel.h"
-#include "defines.h"
+#ifdef ICONV
+# include "conn-encoding.h"
+#endif
+#include "irc-macros.h"
#include "irc-write.h"
#include "log.h"
+#include "match.h"
#include "messages.h"
#include "parse.h"
+#include "op.h"
-#include "exp.h"
#include "irc.h"
+static char *Option_String PARAMS((CONN_ID Idx));
+static bool Send_Message PARAMS((CLIENT *Client, REQUEST *Req, int ForceType,
+ bool SendErrors));
+static bool Send_Message_Mask PARAMS((CLIENT *from, char *command,
+ char *targetMask, char *message,
+ bool SendErrors));
+static bool Help PARAMS((CLIENT *Client, const char *Topic));
-GLOBAL BOOLEAN
-IRC_ERROR( CLIENT *Client, REQUEST *Req )
+/**
+ * Check if a list limit is reached and inform client accordingly.
+ *
+ * @param From The client.
+ * @param Count Reply item count.
+ * @param Limit Reply limit.
+ * @param Name Name of the list.
+ * @return true if list limit has been reached; false otherwise.
+ */
+GLOBAL bool
+IRC_CheckListTooBig(CLIENT *From, const int Count, const int Limit,
+ const char *Name)
+{
+ assert(From != NULL);
+ assert(Count >= 0);
+ assert(Limit > 0);
+ assert(Name != NULL);
+
+ if (Count < Limit)
+ return false;
+
+ (void)IRC_WriteStrClient(From,
+ "NOTICE %s :%s list limit (%d) reached!",
+ Client_ID(From), Name, Limit);
+ IRC_SetPenalty(From, 2);
+ return true;
+}
+
+/**
+ * Handler for the IRC "ERROR" command.
+ *
+ * @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_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] );
+ if (Client_Type(Client) != CLIENT_GOTPASS
+ && Client_Type(Client) != CLIENT_GOTPASS_2813
+ && Client_Type(Client) != CLIENT_UNKNOWNSERVER
+ && Client_Type(Client) != CLIENT_SERVER
+ && Client_Type(Client) != CLIENT_SERVICE) {
+ LogDebug("Ignored ERROR command from \"%s\" ...",
+ Client_Mask(Client));
+ IRC_SetPenalty(Client, 2);
+ return CONNECTED;
+ }
+
+ 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 */
+/**
+ * Handler for the IRC "KILL" command.
+ *
+ * This function implements the IRC command "KILL" which is used to selectively
+ * disconnect clients. It can be used by IRC operators and servers, for example
+ * to "solve" nick collisions after netsplits. See RFC 2812 section 3.7.1.
+ *
+ * Please note that this function is also called internally, without a real
+ * KILL command being received over the network! Client is Client_ThisServer()
+ * in this case, and the prefix in Req is NULL.
+ *
+ * @param Client The client from which this command has been received or
+ * Client_ThisServer() when generated interanlly.
+ * @param Req Request structure with prefix and all parameters.
+ * @return CONNECTED or DISCONNECTED.
+ */
+GLOBAL bool
+IRC_KILL(CLIENT *Client, REQUEST *Req)
+{
+ CLIENT *prefix;
+ char reason[COMMAND_LEN];
+
+ assert (Client != NULL);
+ assert (Req != NULL);
+
+ if (Client_Type(Client) != CLIENT_SERVER && !Op_Check(Client, Req))
+ return Op_NoPrivileges(Client, Req);
+
+ /* Get prefix (origin); use the client if no prefix is given. */
+ if (Req->prefix)
+ prefix = Client_Search(Req->prefix);
+ else
+ prefix = Client;
+
+ /* Log a warning message and use this server as origin when the
+ * prefix (origin) is invalid. And this is the reason why we don't
+ * use the _IRC_GET_SENDER_OR_RETURN_ macro above! */
+ if (!prefix) {
+ Log(LOG_WARNING, "Got KILL with invalid prefix: \"%s\"!",
+ Req->prefix );
+ prefix = Client_ThisServer();
+ }
-GLOBAL BOOLEAN
-IRC_KILL( CLIENT *Client, REQUEST *Req )
+ 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: Prefix the "reason" if the originator is a
+ * regular user, so users can't spoof KILLs of servers. */
+ 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));
+
+ return IRC_KillClient(Client, prefix, Req->argv[0], reason);
+}
+
+/**
+ * Handler for the IRC "NOTICE" command.
+ *
+ * @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_NOTICE(CLIENT *Client, REQUEST *Req)
{
- CLIENT *prefix, *c;
+ return Send_Message(Client, Req, CLIENT_USER, false);
+} /* IRC_NOTICE */
- assert( Client != NULL );
- assert( Req != NULL );
+/**
+ * Handler for the IRC "PRIVMSG" command.
+ *
+ * @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_PRIVMSG(CLIENT *Client, REQUEST *Req)
+{
+ return Send_Message(Client, Req, CLIENT_USER, true);
+} /* IRC_PRIVMSG */
- /* Falsche Anzahl Parameter? */
- if(( Req->argc != 2 )) return IRC_WriteStrClient( Client, ERR_NEEDMOREPARAMS_MSG, Client_ID( Client ), Req->command );
+/**
+ * Handler for the IRC "SQUERY" command.
+ *
+ * @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_SQUERY(CLIENT *Client, REQUEST *Req)
+{
+ return Send_Message(Client, Req, CLIENT_SERVICE, true);
+} /* IRC_SQUERY */
- prefix = Client_Search( Req->prefix );
- if( ! prefix )
- {
- Log( LOG_WARNING, "Got KILL with invalid prefix: \"%s\"!", Req->prefix );
- prefix = Client_ThisServer( );
+/*
+ * Handler for the IRC "TRACE" command.
+ *
+ * @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_TRACE(CLIENT *Client, REQUEST *Req)
+{
+ CLIENT *from, *target, *c;
+ CONN_ID idx, idx2;
+ char user[CLIENT_USER_LEN];
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ _IRC_GET_SENDER_OR_RETURN_(from, Req, Client)
+ _IRC_GET_TARGET_SERVER_OR_RETURN_(target, Req, 0, from)
+
+ /* Forward command to other server? */
+ if (target != Client_ThisServer()) {
+ /* 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),
+ (long)(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 */
+ strlcpy(user, Client_User(c), sizeof(user));
+ if (user[0] == '~')
+ strlcpy(user, "unknown", sizeof(user));
+ if (!IRC_WriteStrClient(from,
+ RPL_TRACESERVER_MSG,
+ Client_ID(from), Client_ID(c),
+ user, Client_Hostname(c),
+ Client_Mask(Client_ThisServer()),
+ Option_String(Client_Conn(c))))
+ return DISCONNECTED;
+ }
+ if (Client_Type(c) == CLIENT_USER
+ && Client_HasMode(c, 'o')) {
+ /* IRC Operator */
+ if (!IRC_WriteStrClient(from,
+ RPL_TRACEOPERATOR_MSG,
+ Client_ID(from), Client_ID(c)))
+ return DISCONNECTED;
+ }
+ }
+ c = Client_Next( c );
}
- Log( LOG_NOTICE, "Got KILL command from \"%s\" for \"%s\": %s", Client_Mask( prefix ), Req->argv[0], Req->argv[1] );
+ return IRC_WriteStrClient(from, RPL_TRACEEND_MSG, Client_ID(from),
+ Conf_ServerName, PACKAGE_NAME,
+ PACKAGE_VERSION, NGIRCd_DebugLevel);
+} /* IRC_TRACE */
- /* andere Server benachrichtigen */
- IRC_WriteStrServersPrefix( Client, prefix, "KILL %s :%s", Req->argv[0], Req->argv[1] );
+/**
+ * Handler for the IRC "HELP" command.
+ *
+ * @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_HELP(CLIENT *Client, REQUEST *Req)
+{
+ COMMAND *cmd;
- /* 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 );
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ if ((Req->argc == 0 && array_bytes(&Conf_Helptext) > 0)
+ || (Req->argc >= 1 && strcasecmp(Req->argv[0], "Commands") != 0)) {
+ /* Help text available and requested */
+ if (Req->argc >= 1)
+ return Help(Client, Req->argv[0]);
+
+ if (!Help(Client, "Intro"))
+ return DISCONNECTED;
+ return CONNECTED;
}
- else Log( LOG_NOTICE, "Client with nick \"%s\" is unknown here.", Req->argv[0] );
+ cmd = Parse_GetCommandStruct();
+ while(cmd->name) {
+ if (!IRC_WriteStrClient(Client, "NOTICE %s :%s",
+ Client_ID(Client), cmd->name))
+ return DISCONNECTED;
+ cmd++;
+ }
return CONNECTED;
-} /* IRC_KILL */
+} /* IRC_HELP */
-
-GLOBAL BOOLEAN
-IRC_NOTICE( CLIENT *Client, REQUEST *Req )
+/**
+ * Kill an client identified by its nick name.
+ *
+ * Please note that after killig a client, its CLIENT cond CONNECTION
+ * structures are invalid. So the caller must make sure on its own not to
+ * access data of probably killed clients after calling this function!
+ *
+ * @param Client The client from which the command leading to the KILL has
+ * been received, or NULL. The KILL will no be forwarded in this
+ * direction. Only relevant when From is set, too.
+ * @param From The client from which the command originated, or NULL for
+ the local server.
+ * @param Nick The nick name to kill.
+ * @param Reason Text to send as reason to the client and other servers.
+ */
+GLOBAL bool
+IRC_KillClient(CLIENT *Client, CLIENT *From, const char *Nick, const char *Reason)
{
- CLIENT *to, *from;
-
- assert( Client != NULL );
- assert( Req != NULL );
+ const char *msg;
+ CONN_ID my_conn = NONE, conn;
+ CLIENT *c;
+
+ assert(Nick != NULL);
+ assert(Reason != NULL);
+
+ /* Do we know such a client in the network? */
+ c = Client_Search(Nick);
+ if (!c) {
+ LogDebug("Client with nick \"%s\" is unknown, not forwaring.", Nick);
+ return CONNECTED;
+ }
- if(( Client_Type( Client ) != CLIENT_USER ) && ( Client_Type( Client ) != CLIENT_SERVER )) return CONNECTED;
+ /* Inform other servers */
+ IRC_WriteStrServersPrefix(From ? Client : NULL,
+ From ? From : Client_ThisServer(),
+ "KILL %s :%s", Nick, Reason);
+
+ if (Client_Type(c) != CLIENT_USER && Client_Type(c) != CLIENT_GOTNICK) {
+ /* Target of this KILL is not a regular user, this is
+ * invalid! So we ignore this case if we received a
+ * regular KILL from the network and try to kill the
+ * client/connection anyway (but log an error!) if the
+ * origin is the local server. */
+
+ if (Client != Client_ThisServer()) {
+ /* Invalid KILL received from remote */
+ if (Client_Type(c) == CLIENT_SERVER)
+ msg = ERR_CANTKILLSERVER_MSG;
+ else
+ msg = ERR_NOPRIVILEGES_MSG;
+ return IRC_WriteErrClient(Client, msg, Client_ID(Client));
+ }
- /* Falsche Anzahl Parameter? */
- if( Req->argc != 2 ) return CONNECTED;
+ Log(LOG_ERR,
+ "Got KILL for invalid client type: %d, \"%s\"!",
+ Client_Type(c), Nick);
+ }
- 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 );
+ /* Save ID of this connection */
+ if (Client)
+ my_conn = Client_Conn(Client);
+
+ /* Kill the client NOW:
+ * - Close the local connection (if there is one),
+ * - Destroy the CLIENT structure for remote clients.
+ * Note: Conn_Close() removes the CLIENT structure as well. */
+ conn = Client_Conn(c);
+ if(conn > NONE)
+ Conn_Close(conn, NULL, Reason, true);
+ else
+ Client_Destroy(c, NULL, Reason, false);
+
+ /* Are we still connected or were we killed, too? */
+ if (my_conn > NONE && Conn_GetClient(my_conn))
+ return CONNECTED;
+ else
+ return DISCONNECTED;
+}
+
+/**
+ * Send help for a given topic to the client.
+ *
+ * @param Client The client requesting help.
+ * @param Topoc The help topic requested.
+ * @return CONNECTED or DISCONNECTED.
+ */
+static bool
+Help(CLIENT *Client, const char *Topic)
+{
+ char *line;
+ size_t helptext_len, len_str, idx_start, lines = 0;
+ bool in_article = false;
+
+ assert(Client != NULL);
+ assert(Topic != NULL);
+
+ helptext_len = array_bytes(&Conf_Helptext);
+ line = array_start(&Conf_Helptext);
+ while (helptext_len > 0) {
+ len_str = strlen(line) + 1;
+ assert(helptext_len >= len_str);
+ helptext_len -= len_str;
+
+ if (in_article) {
+ /* The first character in each article text line must
+ * be a TAB (ASCII 9) character which will be stripped
+ * in the output. If it is not a TAB, the end of the
+ * article has been reached. */
+ if (line[0] != '\t') {
+ if (lines > 0)
+ return CONNECTED;
+ else
+ break;
+ }
+
+ /* A single '.' character indicates an empty line */
+ if (line[1] == '.' && line[2] == '\0')
+ idx_start = 2;
+ else
+ idx_start = 1;
+
+ if (!IRC_WriteStrClient(Client, "NOTICE %s :%s",
+ Client_ID(Client),
+ &line[idx_start]))
+ return DISCONNECTED;
+ lines++;
+
+ } else {
+ if (line[0] == '-' && line[1] == ' '
+ && strcasecmp(&line[2], Topic) == 0)
+ in_article = true;
+ }
- 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] );
+ line += len_str;
}
- else return CONNECTED;
-} /* IRC_NOTICE */
+ /* Help topic not found (or empty)! */
+ if (!IRC_WriteStrClient(Client, "NOTICE %s :No help for \"%s\" found!",
+ Client_ID(Client), Topic))
+ return DISCONNECTED;
-GLOBAL BOOLEAN
-IRC_PRIVMSG( CLIENT *Client, REQUEST *Req )
+ return CONNECTED;
+}
+
+/**
+ * Get pointer to a static string representing the connection "options".
+ *
+ * @param Idx Connection index.
+ * @return Pointer to static (global) string buffer.
+ */
+static char *
+#ifdef ZLIB
+Option_String(CONN_ID Idx)
+#else
+Option_String(UNUSED CONN_ID Idx)
+#endif
+{
+ static char option_txt[8];
+ UINT16 options;
+
+ assert(Idx != NONE);
+
+ options = Conn_Options(Idx);
+ strcpy(option_txt, "F"); /* No idea what this means, but the
+ * original ircd sends it ... */
+#ifdef SSL_SUPPORT
+ if(options & CONN_SSL) /* SSL encrypted link */
+ strlcat(option_txt, "s", sizeof(option_txt));
+#endif
+#ifdef ZLIB
+ if(options & CONN_ZIP) /* zlib compression enabled */
+ strlcat(option_txt, "z", sizeof(option_txt));
+#endif
+ LogDebug(" *** %d: %d = %s", Idx, options, option_txt);
+
+ return option_txt;
+} /* Option_String */
+
+static bool
+Send_Message(CLIENT * Client, REQUEST * Req, int ForceType, bool SendErrors)
{
CLIENT *cl, *from;
+ CL2CHAN *cl2chan;
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 );
+ char *currentTarget = Req->argv[0];
+ char *lastCurrentTarget = NULL;
+ char *message = NULL;
+
+ assert(Client != NULL);
+ assert(Req != NULL);
+
+ if (Req->argc == 0) {
+ if (!SendErrors)
+ return CONNECTED;
+ return IRC_WriteErrClient(Client, ERR_NORECIPIENT_MSG,
+ Client_ID(Client), Req->command);
+ }
+ if (Req->argc == 1) {
+ if (!SendErrors)
+ return CONNECTED;
+ return IRC_WriteErrClient(Client, ERR_NOTEXTTOSEND_MSG,
+ Client_ID(Client));
+ }
+ if (Req->argc > 2) {
+ if (!SendErrors)
+ return CONNECTED;
+ return IRC_WriteErrClient(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 );
+ if (Client_Type(Client) == CLIENT_SERVER && Req->prefix)
+ from = Client_Search(Req->prefix);
+ else
+ from = Client;
+ if (!from)
+ return IRC_WriteErrClient(Client, ERR_NOSUCHNICK_MSG,
+ Client_ID(Client), Req->prefix);
+
+#ifdef ICONV
+ if (Client_Conn(Client) > NONE)
+ message = Conn_EncodingFrom(Client_Conn(Client), Req->argv[1]);
+ else
+#endif
+ message = Req->argv[1];
+
+ /* handle msgtarget = msgto *("," msgto) */
+ currentTarget = strtok_r(currentTarget, ",", &lastCurrentTarget);
+ ngt_UpperStr(Req->command);
+
+ while (currentTarget) {
+ /* Check for and handle valid <msgto> of form:
+ * RFC 2812 2.3.1:
+ * msgto = channel / ( user [ "%" host ] "@" servername )
+ * msgto =/ ( user "%" host ) / targetmask
+ * msgto =/ nickname / ( nickname "!" user "@" host )
+ */
+ if (strchr(currentTarget, '!') == NULL)
+ /* nickname */
+ cl = Client_Search(currentTarget);
+ else
+ cl = NULL;
+
+ if (cl == NULL) {
+ /* If currentTarget isn't a nickname check for:
+ * user ["%" host] "@" servername
+ * user "%" host
+ * nickname "!" user "@" host
+ */
+ char target[COMMAND_LEN];
+ char * nick = NULL;
+ char * user = NULL;
+ char * host = NULL;
+ char * server = NULL;
+
+ strlcpy(target, currentTarget, COMMAND_LEN);
+ server = strchr(target, '@');
+ if (server) {
+ *server = '\0';
+ server++;
+ }
+ host = strchr(target, '%');
+ if (host) {
+ *host = '\0';
+ host++;
+ }
+ user = strchr(target, '!');
+ if (user) {
+ /* msgto form: nick!user@host */
+ *user = '\0';
+ user++;
+ nick = target;
+ host = server; /* not "@server" but "@host" */
+ } else {
+ user = target;
+ }
+
+ for (cl = Client_First(); cl != NULL; cl = Client_Next(cl)) {
+ if (Client_Type(cl) != CLIENT_USER &&
+ Client_Type(cl) != CLIENT_SERVICE)
+ continue;
+ if (nick != NULL && host != NULL) {
+ if (strcasecmp(nick, Client_ID(cl)) == 0 &&
+ strcasecmp(user, Client_User(cl)) == 0 &&
+ strcasecmp(host, Client_HostnameDisplayed(cl)) == 0)
+ break;
+ else
+ continue;
+ }
+ if (strcasecmp(user, Client_User(cl)) != 0)
+ continue;
+ if (host != NULL && strcasecmp(host,
+ Client_HostnameDisplayed(cl)) != 0)
+ continue;
+ if (server != NULL && strcasecmp(server,
+ Client_ID(Client_Introducer(cl))) != 0)
+ continue;
+ break;
+ }
+ }
- 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;
+ if (cl) {
+ /* Target is a user, enforce type */
+#ifndef STRICT_RFC
+ if (Client_Type(cl) != ForceType &&
+ !(ForceType == CLIENT_USER &&
+ (Client_Type(cl) == CLIENT_USER ||
+ Client_Type(cl) == CLIENT_SERVICE))) {
+#else
+ if (Client_Type(cl) != ForceType) {
+#endif
+ if (SendErrors && !IRC_WriteErrClient(
+ from, ERR_NOSUCHNICK_MSG,Client_ID(from),
+ currentTarget))
+ return DISCONNECTED;
+ goto send_next_target;
+ }
+
+#ifndef STRICT_RFC
+ if (ForceType == CLIENT_SERVICE &&
+ (Conn_Options(Client_Conn(Client_NextHop(cl)))
+ & CONN_RFC1459)) {
+ /* SQUERY command but RFC 1459 link: convert
+ * request to PRIVMSG command */
+ Req->command = "PRIVMSG";
+ }
+#endif
+ if (Client_HasMode(cl, 'b') &&
+ !Client_HasMode(from, 'R') &&
+ !Client_HasMode(from, 'o') &&
+ !(Client_Type(from) == CLIENT_SERVER) &&
+ !(Client_Type(from) == CLIENT_SERVICE)) {
+ if (SendErrors && !IRC_WriteErrClient(from,
+ ERR_NONONREG_MSG,
+ Client_ID(from), Client_ID(cl)))
+ return DISCONNECTED;
+ goto send_next_target;
+ }
+
+ if (Client_HasMode(cl, 'C')) {
+ cl2chan = Channel_FirstChannelOf(cl);
+ while (cl2chan) {
+ chan = Channel_GetChannel(cl2chan);
+ if (Channel_IsMemberOf(chan, from))
+ break;
+ cl2chan = Channel_NextChannelOf(cl, cl2chan);
+ }
+ if (!cl2chan) {
+ if (SendErrors && !IRC_WriteErrClient(
+ from, ERR_NOTONSAMECHANNEL_MSG,
+ Client_ID(from), Client_ID(cl)))
+ return DISCONNECTED;
+ goto send_next_target;
+ }
+ }
+
+ if (SendErrors && (Client_Type(Client) != CLIENT_SERVER)
+ && Client_HasMode(cl, 'a')) {
+ /* Target is away */
+ if (!IRC_WriteStrClient(from, RPL_AWAY_MSG,
+ Client_ID(from),
+ Client_ID(cl),
+ Client_Away(cl)))
+ return DISCONNECTED;
+ }
+ if (Client_Conn(from) > NONE) {
+ Conn_UpdateIdle(Client_Conn(from));
+ }
+ if (!IRC_WriteStrClientPrefix(cl, from, "%s %s :%s",
+ Req->command, Client_ID(cl),
+ message))
+ return DISCONNECTED;
+ } else if (ForceType != CLIENT_SERVICE
+ && (chan = Channel_Search(currentTarget))) {
+ if (!Channel_Write(chan, from, Client, Req->command,
+ SendErrors, message))
+ return DISCONNECTED;
+ } else if (ForceType != CLIENT_SERVICE
+ /* $#: server/target mask, RFC 2812, sec. 3.3.1 */
+ && strchr("$#", currentTarget[0])
+ && strchr(currentTarget, '.')) {
+ /* targetmask */
+ if (!Send_Message_Mask(from, Req->command, currentTarget,
+ message, SendErrors))
+ return DISCONNECTED;
+ } else {
+ if (!SendErrors)
+ return CONNECTED;
+ if (!IRC_WriteErrClient(from, ERR_NOSUCHNICK_MSG,
+ Client_ID(from), currentTarget))
+ 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] );
+ send_next_target:
+ currentTarget = strtok_r(NULL, ",", &lastCurrentTarget);
+ if (currentTarget)
+ Conn_SetPenalty(Client_Conn(Client), 1);
}
- chan = Channel_Search( Req->argv[0] );
- if( chan ) return Channel_Write( chan, from, Client, Req->argv[1] );
+ return CONNECTED;
+} /* Send_Message */
- return IRC_WriteStrClient( from, ERR_NOSUCHNICK_MSG, Client_ID( from ), Req->argv[0] );
-} /* IRC_PRIVMSG */
+static bool
+Send_Message_Mask(CLIENT * from, char * command, char * targetMask,
+ char * message, bool SendErrors)
+{
+ CLIENT *cl;
+ bool client_match;
+ char *mask = targetMask + 1;
+ const char *check_wildcards;
+
+ cl = NULL;
+
+ if (!Client_HasMode(from, 'o')) {
+ if (!SendErrors)
+ return true;
+ return IRC_WriteErrClient(from, ERR_NOPRIVILEGES_MSG,
+ Client_ID(from));
+ }
+
+ /*
+ * RFC 2812, sec. 3.3.1 requires that targetMask have at least one
+ * dot (".") and no wildcards ("*", "?") following the last one.
+ */
+ check_wildcards = strrchr(targetMask, '.');
+ assert(check_wildcards != NULL);
+ if (check_wildcards &&
+ check_wildcards[strcspn(check_wildcards, "*?")])
+ {
+ if (!SendErrors)
+ return true;
+ return IRC_WriteErrClient(from, ERR_WILDTOPLEVEL, targetMask);
+ }
+ /* #: hostmask, see RFC 2812, sec. 3.3.1 */
+ if (targetMask[0] == '#') {
+ for (cl = Client_First(); cl != NULL; cl = Client_Next(cl)) {
+ if (Client_Type(cl) != CLIENT_USER)
+ continue;
+ client_match = MatchCaseInsensitive(mask, Client_Hostname(cl));
+ if (client_match)
+ if (!IRC_WriteStrClientPrefix(cl, from, "%s %s :%s",
+ command, Client_ID(cl), message))
+ return false;
+ }
+ } else {
+ assert(targetMask[0] == '$'); /* $: server mask, see RFC 2812, sec. 3.3.1 */
+ for (cl = Client_First(); cl != NULL; cl = Client_Next(cl)) {
+ if (Client_Type(cl) != CLIENT_USER)
+ continue;
+ client_match = MatchCaseInsensitive(mask,
+ Client_ID(Client_Introducer(cl)));
+ if (client_match)
+ if (!IRC_WriteStrClientPrefix(cl, from, "%s %s :%s",
+ command, Client_ID(cl), message))
+ return false;
+ }
+ }
+ return CONNECTED;
+} /* Send_Message_Mask */
/* -eof- */
projects / ngircd-alex.git / blobdiff