<?php
/*
+---------------------------------------------------------------------------
|   PHP-IRC v2.2.1 Service Release
|   ========================================================
|   by Manick
|   (c) 2001-2004 by http://www.phpbots.org/
|   irc: #manekian@irc.rizon.net
|   ========================================
+---------------------------------------------------------------------------
|   > dcc chat module
|   > Module written by Manick
|   > Module Version Number: 2.2.1 beta
+---------------------------------------------------------------------------
|   > 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.
|   >
|   > This program 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 General Public License for more details.
|   >
|   > You should have received a copy of the GNU General Public License
|   > along with this program; if not, write to the Free Software
|   > Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+---------------------------------------------------------------------------
|   Changes
|   =======-------
|   > If you wish to suggest or submit an update/change to the source
|   > code, email me at manick@manekian.com with the change, and I
|   > will look to adding it in as soon as I can.
+---------------------------------------------------------------------------
*/

class chat {

  /* Chat specific Data */
  	public $id;
	public $status;
	public $sockInt;
	public $isAdmin;
	public $timeConnected;
	public $verified;
	public $readQueue;
	public $floodQueue;
	public $floodQueueTime;
	public $port;
	public $type;
	public $nick;
	public $timeOutLevel;
	public $removed;
	public $connection;

	public $handShakeSent;
	public $handShakeTime;
	public $reverse;
	public $connectHost;

  /* Classes */
  	private $dccClass;
	private $parserClass;
	private $ircClass;
	private $socketClass;
	private $timerClass;

	//class handler
	private $handler;

	/* Constructor */
	public function __construct($id, $nick, $admin, $sockInt, $host, $port, $handler, $reverse)
	{
		$this->id = $id;
		$this->handler = $handler;
		$this->nick = $nick;
		$this->isAdmin = $admin;
		$this->sockInt = $sockInt;
		$this->port = $port;
		$this->connectHost = $host;
		$this->reverse = $reverse;
		$this->handShakeSent = false;

		$this->sendQueue = array();
		$this->sendQueueCount = 0;
	}

	public function setIrcClass($class)
	{
		$this->ircClass = $class;
	}

	public function setDccClass($class)
	{
		$this->dccClass = $class;
	}
	
	public function setSocketClass($class)
	{
		$this->socketClass = $class;
	}

	public function setParserClass($class)
	{
		$this->parserClass = $class;
	}

	public function setTimerClass($class)
	{
		$this->timerClass = $class;
	}

	private function sendUserGreeting()
    {
        if ($this->verified == true)
        {
                return;
        }

        $this->dccSend("Welcome to " . $this->ircClass->getNick());
        $this->dccSend("PHP-iRC v". VERSION ." [". VERSION_DATE ."]");
        $time = $this->ircClass->timeFormat($this->ircClass->getRunTime(), "%d days, %h hrs, %m min, %s sec");
        $this->dccSend("running " . $time);
        $this->dccSend("You are currently in the dcc chat interface. Type 'help' to begin.");
	}

 	private function sendAdminGreeting()
	{
		if ($this->verified == true)
		{
			return;
		}

		$this->dccSend("Welcome to " . $this->ircClass->getNick());
		$this->dccSend("PHP-iRC v". VERSION ." [". VERSION_DATE ."]");
		$time = $this->ircClass->timeFormat($this->ircClass->getRunTime(), "%d days, %h hrs, %m min, %s sec");
		$this->dccSend("running " . $time);
		$this->dccSend("Enter Your Password:");
	}
	
	public function dccSend($data, $to = null)
	{
		if ($this->status != DCC_CONNECTED)
		{
			return;
		}

		if ($to == null)
		{
			$to = $this;
		}

		$this->dccClass->dccSend($to, "--> " . $data . "\n");
	}

	public function dccSendRaw($data, $to = null)
	{
		if ($this->status != DCC_CONNECTED)
		{
			return;
		}

		if ($to == null)
		{
			$to = $this;
		}

		$this->dccClass->dccSend($to, $data);
	}


	public function disconnect($msg = "")
	{

		$msg = str_replace("\r", "", $msg);
		$msg = str_replace("\n", "", $msg);

		if (is_object($this->handler) && $this->status == DCC_CONNECTED)
		{
			$this->handler->disconnected($this);
		}

		$this->status = false;

		if ($msg != "")
		{
			$this->dccClass->dccInform("DCC: " . $this->nick . " closed DCC Chat (" . $msg . ")", $this);
			$this->ircClass->notice($this->nick, "DCC session ended: " . $msg, 1);
		}
		else
		{
			$this->dccClass->dccInform("DCC: " . $this->nick . " closed DCC Chat", $this);
		}

	  	$this->dccClass->disconnect($this);

	  	$this->connection = null;

		return true;
	}



	private function doHandShake()
	{
		$this->dccSendRaw("100 ".$this->ircClass->getNick()."\n");
		$this->handShakeSent = true;
		$this->timerClass->addTimer(irc::randomHash(), $this, "handShakeTimeout", "", 8);
	}

	private function processHandShake()
	{
		if ($this->readQueue == "")
		{
			return;
		}

		$response = $this->readQueue;
		$this->readQueue = "";
		$responseArray = explode(chr(32), $response);
		if ($responseArray[0] == "101")
		{
			$this->reverse = false;
			$this->onConnect($this->connection);
			return;
		}

		$this->disconnect("DCC Client Server reported error on attempt to start chat");
	}

	public function handShakeTimeout()
	{
		if ($this->status != false)
		{
			if ($this->reverse == true)
			{
				$this->disconnect("DCC Reverse handshake timed out");
			}
		}
		return false;
	}

	/* Main events */
	public function onTimeout($conn)
	{
		$this->disconnect("Connection transfer timed out");
	}

	public function onDead($conn)
	{
		$this->disconnect($this->connection->getErrorMsg());
	}

	public function onRead($conn)
	{
		if ($this->socketClass->hasLine($this->sockInt))
		{
			$this->readQueue .= $this->socketClass->getQueueLine($this->sockInt);
		}

		if ($this->status == DCC_CONNECTED)
		{
			if ($this->reverse != false)
			{
				if ($this->handShakeSent != false)
				{
					$this->processHandShake();
				}
			}
			else
			{
				if ($this->readQueue != "")
				{
					$this->parserClass->parseDcc($this, $this->handler);
				}
			}

		}
		
		if ($this->socketClass->hasLine($this->sockInt))
		{
			return true;
		}
	}

	public function onWrite($conn)
	{
		//do nothing
	}

	public function onAccept($oldConn, $newConn)
	{
		$this->dccClass->accepted($oldConn, $newConn);
		$this->connection = $newConn;
		$oldConn->disconnect();
		$this->sockInt = $newConn->getSockInt();
		$this->onConnect($newConn);
	}

	public function onConnectTimeout($conn)
	{
		$this->disconnect("Connection attempt timed out");
	}

	public function onConnect($conn)
	{
		$this->status = DCC_CONNECTED;

		if ($this->reverse != false)
		{
			$this->dccClass->dccInform("DCC CHAT: " . $this->nick . " handling dcc server request");
			$this->doHandShake();
			return;
		}

		$this->dccClass->dccInform("DCC CHAT: " . $this->nick . " connection established");

		if ($this->handler === false || $this->handler == null)
		{
			if ($this->isAdmin == true)
			{
				$this->sendAdminGreeting();
			}
			else
			{
				$this->sendUserGreeting();
			}
		}
		else
		{
		
			if (is_object($this->handler))
			{
				$this->handler->connected($this);
			}
		}

	}


	public function initialize()
	{

		$this->dccClass->dccInform("DCC: " . $this->nick . " is attempting to login");

		if ($this->status == DCC_LISTENING)
		{
			$this->ircClass->privMsg($this->nick, "\1DCC CHAT chat " . $this->ircClass->getClientIP(1) . " " . $this->port . "\1", 0);
			$this->ircClass->notice($this->nick, "DCC Chat (" . $this->ircClass->getClientIP(0) . ")", 0);
		}

		$this->timeConnected = time();
		$this->timeOutLevel = 0;
		$this->verified = 0;
		$this->readQueue = "";
		$this->floodQueue = "";
		$this->floodQueueTime = 0;
		$this->type = CHAT;
	}


}

?>