smartirc.php

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<?php
/**
 * $Id: SmartIRC.php 6819 2007-06-20 13:09:21Z kevin_fourie $
 * $Revision: 6819 $
 * $Author: kevin_fourie $
 * $Date: 2007-06-20 15:09:21 +0200 (Wed, 20 Jun 2007) $
 *
 * Net_SmartIRC
 * This is a PHP class for communication with IRC networks,
 * which conforms to the RFC 2812 (IRC protocol).
 * It's an API that handles all IRC protocol messages.
 * This class is designed for creating IRC bots, chats and show irc related info on webpages.
 *
 * Documenation, a HOWTO and examples are in SmartIRC included.
 *
 * Here you will find a service bot which I am also developing
 * <http://cvs.meebey.net/atbs> and <http://cvs.meebey.net/phpbitch>
 * Latest versions of Net_SmartIRC you will find on the project homepage
 * or get it through PEAR since SmartIRC is an official PEAR package.
 * See <http://pear.php.net/Net_SmartIRC>.
 *
 * Official Projet Homepage: <http://sf.net/projects/phpsmartirc>
 *
 * Net_SmartIRC conforms to RFC 2812 (Internet Relay Chat: Client Protocol)
 * 
 * Copyright (c) 2002-2003 Mirco 'meebey' Bauer <[e-mail]> <http://www.meebey.net>
 * 
 * Full LGPL License: <http://www.gnu.org/licenses/lgpl.txt>
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
// ------- PHP code ----------
include_once('SmartIRC/defines.php');
include_once('SmartIRC/irccommands.php');
include_once('SmartIRC/messagehandler.php');
define('SMARTIRC_VERSION', '1.0.0 ($Revision: 6819 $)');
define('SMARTIRC_VERSIONSTRING', 'Net_SmartIRC '.SMARTIRC_VERSION);

/**
 * main SmartIRC class
 *
 * @package Net_SmartIRC
 * @version 0.5.5
 * @author Mirco 'meebey' Bauer <[e-mail]>
 * @access public
 */
class Net_SmartIRC_base
{
    /**
     * @var resource
     * @access private
     */
    var $_socket;
    
    /**
     * @var string
     * @access private
     */
    var $_address;
    
    /**
     * @var integer
     * @access private
     */
    var $_port;
    
    /**
     * @var string
     * @access private
     */
    var $_nick;
    
    /**
     * @var string
     * @access private
     */
    var $_username;
    
    /**
     * @var string
     * @access private
     */
    var $_realname;
    
    /**
     * @var string
     * @access private
     */
    var $_usermode;
    
    /**
     * @var string
     * @access private
     */
    var $_password;
    
    /**
     * @var boolean
     * @access private
     */
    var $_state = false;
    
    /**
     * @var array
     * @access private
     */
    var $_actionhandler = array();
    
    /**
     * @var array
     * @access private
     */
    var $_timehandler = array();
    
    /**
     * @var integer
     * @access private
     */
    var $_debug = SMARTIRC_DEBUG_NOTICE;
    
    /**
     * @var array
     * @access private
     */
    var $_messagebuffer = array();
    
    /**
     * @var integer
     * @access private
     */
    var $_messagebuffersize;
    
    /**
     * @var boolean
     * @access private
     */
    var $_usesockets = false;
    
    /**
     * @var integer
     * @access private
     */
    var $_receivedelay = 100;
    
    /**
     * @var integer
     * @access private
     */
    var $_senddelay = 250;
    
    /**
     * @var integer
     * @access private
     */
    var $_logdestination = SMARTIRC_STDOUT;
    
    /**
     * @var resource
     * @access private
     */
    var $_logfilefp = 0;
    
    /**
     * @var string
     * @access private
     */
    var $_logfile = 'Net_SmartIRC.log';
    
    /**
     * @var integer
     * @access private
     */
    var $_disconnecttime = 1000;
    
    /**
     * @var boolean
     * @access private
     */
    var $_loggedin = false;
    
    /**
     * @var boolean
     * @access private
     */
    var $_benchmark = false;
    
    /**
     * @var integer
     * @access private
     */
    var $_benchmark_starttime;
    
    /**
     * @var integer
     * @access private
     */
    var $_benchmark_stoptime;
    
    /**
     * @var integer
     * @access private
     */
    var $_actionhandlerid = 0;
    
    /**
     * @var integer
     * @access private
     */
    var $_timehandlerid = 0;
    
    /**
     * @var array
     * @access private
     */
    var $_motd = array();
    
    /**
     * @var array
     * @access private
     */
    var $_channels = array();
    
    /**
     * @var boolean
     * @access private
     */
    var $_channelsyncing = false;
    
    /**
     * @var string
     * @access private
     */
    var $_ctcpversion;
    
    /**
     * @var mixed
     * @access private
     */
    var $_mintimer = false;
    
    /**
     * @var integer
     * @access private
     */
    var $_maxtimer = 300000;
    
    /**
     * @var integer
     * @access private
     */
    var $_txtimeout = 300;
    
    /**
     * @var integer
     * @access private
     */
    var $_rxtimeout = 300;
    
    /**
     * @var integer
     * @access private
     */
    var $_selecttimeout;
    
    /**
     * @var integer
     * @access private
     */
    var $_lastrx;
    
    /**
     * @var integer
     * @access private
     */
    var $_lasttx;
    
    /**
     * @var boolean
     * @access private
     */
    var $_autoreconnect = false;
    
    /**
     * @var boolean
     * @access private
     */
    var $_autoretry = false;
    
    /**
     * All IRC replycodes, the index is the replycode name.
     *
     * @see $SMARTIRC_replycodes
     * @var array
     * @access public
     */
    var $replycodes;
    
    /**
     * All numeric IRC replycodes, the index is the numeric replycode.
     *
     * @see $SMARTIRC_nreplycodes
     * @var array
     * @access public
     */
    var $nreplycodes;
    
    /**
     * Stores all channels in this array where we are joined, works only if channelsyncing is activated.
     * Eg. for accessing a user, use it like this: (in this example the SmartIRC object is stored in $irc)
     * $irc->channel['#test']->users['meebey']->nick;
     *
     * @see setChannelSyncing()
     * @see Net_SmartIRC_channel
     * @see Net_SmartIRC_channeluser
     * @var array
     * @access public
     */
    var $channel;
    
    /**
     * Constructor. Initiales the messagebuffer and "links" the replycodes from
     * global into properties. Also some PHP runtime settings are configured.
     *
     * @access public
     * @return void
     */
    function Net_SmartIRC_base()
    {
        // precheck
        $this->_checkPHPVersion();
        
        ob_implicit_flush(true);
        @set_time_limit(0);
        ignore_user_abort(true);
        $this->_messagebuffer[SMARTIRC_CRITICAL] = array();
        $this->_messagebuffer[SMARTIRC_HIGH] = array();
        $this->_messagebuffer[SMARTIRC_MEDIUM] = array();
        $this->_messagebuffer[SMARTIRC_LOW] = array();
        $this->replycodes = &$GLOBALS['SMARTIRC_replycodes'];
        $this->nreplycodes = &$GLOBALS['SMARTIRC_nreplycodes'];
        
        // hack till PHP allows (PHP5) $object->method($param)->$object
        $this->channel = &$this->_channels;
        // another hack
        $this->user = &$this->_users;
        
        if (isset($_SERVER['REQUEST_METHOD'])) {
            // the script is called from a browser, lets set default log destination
            // to SMARTIRC_BROWSEROUT (makes browser friendly output)
            $this->setLogdestination(SMARTIRC_BROWSEROUT);
        }
    }
    
    /**
     * Enables/disables the usage of real sockets.
     *
     * Enables/disables the usage of real sockets instead of fsocks
     * (works only if your PHP build has loaded the PHP socket extension)
     * Default: false
     *
     * @param bool $boolean
     * @return void
     * @access public
     */
    function setUseSockets($boolean)
    {
        if ($boolean === true) {
            if (@extension_loaded('sockets')) {
                $this->_usesockets = true;
            } else {
                $this->log(SMARTIRC_DEBUG_NOTICE, 'WARNING: socket extension not loaded, trying to load it...', __FILE__, __LINE__);
                
                if (strtoupper(substr(PHP_OS, 0,3) == 'WIN')) {
                    $load_status = @dl('php_sockets.dll');
                } else {
                    $load_status = @dl('sockets.so');
                }
 
                if ($load_status) {
                    $this->log(SMARTIRC_DEBUG_NOTICE, 'WARNING: socket extension succesfully loaded', __FILE__, __LINE__);
                    $this->_usesockets = true;
                } else {
                    $this->log(SMARTIRC_DEBUG_NOTICE, 'WARNING: couldn\'t load the socket extension', __FILE__, __LINE__);
                    $this->log(SMARTIRC_DEBUG_NOTICE, 'WARNING: your PHP build doesn\'t support real sockets, will use fsocks instead', __FILE__, __LINE__);