# OPT1: ob_start();

		# OPT1:$starttime = microtime();

		# OPT1:$html = ob_get_contents();

		# OPT1:ob_end_clean();

		# OPT1:$stripped_html = $html;

		# OPT1:$stripped_html = preg_replace("/^\s*/", "", $stripped_html);

		# OPT1:$stripped_html = preg_replace("/\s{2,}/", " ", $stripped_html);

		# OPT1:$stripped_html = preg_replace("/^\t*/", "", $stripped_html);

		# OPT1:$stripped_html = preg_replace("/\n/", "", $stripped_html);

		# OPT1:$stripped_html = preg_replace("/>\s</", "><", $stripped_html);

		# $stripped_html = preg_replace("/<!--.*-->/", "", $stripped_html);

		# OPT1:$endtime = microtime();

		# OPT1:echo "<!-- unstripped: " . strlen($html) . " bytes/ stripped: " . strlen($stripped_html) . "bytes - " . sprintf("%.2f", strlen($stripped_html) / strlen($html)) . " Bytes saved: " . (strlen($html) - strlen($stripped_html)) . " Time: " . ($endtime - $starttime) . " -->";

		# echo $stripped_html;

		function useSession() {

			require_once($_SERVER['DOCUMENT_ROOT'] . "/eclipse.org-common/system/session.class.php");

        	$ssn = new Session();

        	$ssn->validate();

        	return $ssn;

		}

		function isValidCaller($_pathArray) {

			$a = debug_backtrace();

			$caller = $a[1]['file'];  # Caller 0 is the class that called App();

			$validCaller = false;

			for($i = 0; $i < count($_pathArray); $i++) {

				# TODO: use regexp's to match the leftmost portion for better security 

				if(strstr($caller, $_pathArray[$i])) {

					$validCaller = true;

					break;

				}

			}

			return $validCaller;			

		}

<?php

/*******************************************************************************

 * Copyright (c) 2006 Eclipse Foundation and others.

 * All rights reserved. This program and the accompanying materials

 * are made available under the terms of the Eclipse Public License v1.0

 * which accompanies this distribution, and is available at

 * http://www.eclipse.org/legal/epl-v10.html

 *

 * Contributors:

 *    Denis Roy (Eclipse Foundation)- initial API and implementation

 *******************************************************************************/

define('ECLIPSE_SESSION', 'ECLIPSESESSION');

require_once($_SERVER['DOCUMENT_ROOT'] . "/eclipse.org-common/classes/friends/friend.class.php");

require_once("/home/data/httpd/eclipse-php-classes/system/dbconnection_rw.class.php");

require_once($_SERVER['DOCUMENT_ROOT'] . "/eclipse.org-common/system/app.class.php");

class Session {

	private $gid		= "";

	private $bugzilla_id= 0;

	private $subnet		= "";

	private $updated_at	= "";

	private $is_persistent	= 0;

	private $Friend		= null;

	private $data		= "";

	/**

	 * Default constructor

	 *

	 * @return null

	 */

	function Session($persistent=0) {

		$this->is_persistent = $persistent;

		$this->validate();			

	}

	function getGID() {

		return $this->gid;

	}

	function getBugzillaID() {

		return $this->bugzilla_id;

	}

	function getSubnet() {

		return $this->subnet;

	}

	function getUpdatedAt() {

		return $this->updated_at;

	}

	function getFriend() {

		return $this->Friend;

	}

	function getData() {

		return unserialize($this->data);

	}

	function getIsPersistent() {

		return $this->is_persistent;

	}

	function setGID($_gid) {

		$this->gid = $_gid;

	}

	function setBugzillaID($_bugzilla_id) {

		$this->bugzilla_id = $_bugzilla_id;

	}

	function setSubnet($_subnet) {

		$this->subnet = $_subnet;

	}

	function setUpdatedAt($_updated_at) {

		$this->updated_at = $_updated_at;

	}

	function setFriend($_friend) {

		$this->Friend = $_friend;

	}

	function setData($_data) {

		$this->data = serialize($_data);

	}

	function setIsPersistent($_is_persistent) {

		$this->is_persistent = $_is_persistent;

	}

	/**

	 * Validate session based on browser cookie

	 *

	 * @return boolean

	 */

	function validate() {

		$cookie = (isset($_COOKIE[ECLIPSE_SESSION]) ? $_COOKIE[ECLIPSE_SESSION] : "");

		$rValue = false;

		if ( (!$this->load($cookie))) {

        	# Failed - no such session, or session no match.  Need to relogin

        	setcookie(ECLIPSE_SESSION, "", -36000, "/", "eclipse.org");

        	$rValue = false;

        }

        else {

			# TODO: update session?

			$rValue = true;

        	$this->maintenance();

        	$this->setFriend($this->getData());

        }

        return $rValue;

	}

	function destroy() {

	  $cookie = (isset($_COOKIE[ECLIPSE_SESSION]) ? $_COOKIE[ECLIPSE_SESSION] : "");

      $rValue = 1;

/*        if($nbr) {

        	# TODO: untaint

        	$sql = "DELETE FROM sessions WHERE userid = " . $nbr;

        	sqlQuery($sql);

        	unset($_SESSION['s_userAcct']);

  			unset($_SESSION['s_userName']);

  			unset($_SESSION['s_userType']);

        }

      }*/

	}

	function create() {

		# create session on the database

		$Friend = $this->getFriend();

		$this->setData($Friend);

		# need to have a bugzilla ID to log in

		if($Friend->getBugzillaID() > 0) {

			$App = new App();

			$this->setGID(md5(uniqid(rand(),true)));

			$this->setSubnet($this->getClientSubnet());

			$this->setUpdatedAt($App->getCURDATE());

			#$ModLog = new ModLog();

			#$ModLog->setLogTable("Person");

			#$ModLog->setPK1($this->getPersonID());

			$dbc = new DBConnectionRW();

			$dbh = $dbc->connect();

			$sql = "INSERT INTO sessions (

						gid,

						bugzilla_id,

						subnet,

						updated_at,

						data,

						is_persistent)

						VALUES (

							" . $App->returnQuotedString($this->getGID()) . ",

							" . $Friend->getBugzillaID() . ",

							" . $App->returnQuotedString($this->getSubnet()) . ",

							NOW(),

							'" . $App->returnJSSAfeString($this->data) . "',

							'" . $this->getIsPersistent() . "')";

			mysql_query($sql, $dbh);

			#$ModLog->setLogAction("INSERT");

			#$ModLog->insertModLog();

			$dbc->disconnect();

			$cookie_time = 0;

			if($this->persistent) {

				$cookie_time = time()+3600*24*365;

			}

			setcookie(ECLIPSE_SESSION, $this->getGID(), $cookie_time, "/", "eclipse.org");			

		}

	}

	function load($_gid) {

		# need to have a bugzilla ID to log in

		$rValue = false;

		$App = new App();

		$sql = "SELECT	gid,

						bugzilla_id,

						subnet,

						updated_at,

						data,

						is_persistent

				FROM sessions

				WHERE gid = " . $App->returnQuotedString($_gid) . "

					AND subnet = " . $App->returnQuotedString($this->getClientSubnet());

		$dbc = new DBConnectionRW();

		$dbh = $dbc->connect();

		$result = mysql_query($sql, $dbh);

		if($result && mysql_num_rows($result) > 0) {

			$rValue = true;

			$myrow = mysql_fetch_assoc($result);

			$this->setGID($_gid);

			$this->setBugzillaID($myrow['bugzilla_id']);

			$this->setSubnet($myrow['subnet']);

			$this->setUpdatedAt($myrow['updated_at']);

			$this->data = $myrow['data'];

			$this->setIsPersistent($myrow['is_persistent']);

		}

		$dbc->disconnect();

		return $rValue;

	}

	function maintenance() {

		$dbc = new DBConnectionRW();

		$dbh = $dbc->connect();

		$sql = "DELETE FROM sessions 

				WHERE (updated_at < DATE_SUB(NOW(), INTERVAL 1 DAY) AND is_persistent = 0) 

				OR (subnet = '" . $this->getClientSubnet() . "' AND gid <> '" . $this->getGID() . "')"; 

		mysql_query($sql, $dbh);

		$dbc->disconnect();

	}

	function getClientSubnet() {

		# return class-c subnet

		return substr($_SERVER['REMOTE_ADDR'], 0, strrpos($_SERVER['REMOTE_ADDR'], ".")) . ".0";

	}	

}    

?>