<?php





/**

 * File: Browser.php

 * Author: Chris Schuld (http://chrisschuld.com/)

 * Last Modified: August 20th, 2010

 * @version 1.9

 * @package PegasusPHP

 *

 * Copyright (C) 2008-2010 Chris Schuld  (chris@chrisschuld.com)

 *

 * 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 at:

 * http://www.gnu.org/copyleft/gpl.html

 *

 *

 * Typical Usage:

 *

 *   $browser = new Browser();

 *   if( $browser->getBrowser() == Browser::BROWSER_FIREFOX && $browser->getVersion() >= 2 ) {

 *    echo 'You have FireFox version 2 or greater';

 *   }

 *

 * User Agents Sampled from: http://www.useragentstring.com/

 *

 * This implementation is based on the original work from Gary White

 * http://apptools.com/phptools/browser/

 *

 */



namespace Pimcore;



class Browser {



    private $_agent = '';

    private $_browser_name = '';

    private $_version = '';

    private $_platform = '';

    private $_os = '';

    private $_is_aol = false;

    private $_is_mobile = false;

    private $_is_tablet = false;

    private $_is_robot = false;

    private $_is_facebook = false;

    private $_aol_version = '';



    const BROWSER_UNKNOWN = 'unknown';

    const VERSION_UNKNOWN = 'unknown';



    const BROWSER_OPERA = 'Opera'; // http://www.opera.com/

    const BROWSER_OPERA_MINI = 'Opera Mini'; // http://www.opera.com/mini/

    const BROWSER_WEBTV = 'WebTV'; // http://www.webtv.net/pc/

    const BROWSER_IE = 'Internet Explorer'; // http://www.microsoft.com/ie/

    const BROWSER_POCKET_IE = 'Pocket Internet Explorer'; // http://en.wikipedia.org/wiki/Internet_Explorer_Mobile

    const BROWSER_KONQUEROR = 'Konqueror'; // http://www.konqueror.org/

    const BROWSER_ICAB = 'iCab'; // http://www.icab.de/

    const BROWSER_OMNIWEB = 'OmniWeb'; // http://www.omnigroup.com/applications/omniweb/

    const BROWSER_FIREBIRD = 'Firebird'; // http://www.ibphoenix.com/

    const BROWSER_FIREFOX = 'Firefox'; // http://www.mozilla.com/en-US/firefox/firefox.html

    const BROWSER_ICEWEASEL = 'Iceweasel'; // http://www.geticeweasel.org/

    const BROWSER_SHIRETOKO = 'Shiretoko'; // http://wiki.mozilla.org/Projects/shiretoko

    const BROWSER_MOZILLA = 'Mozilla'; // http://www.mozilla.com/en-US/

    const BROWSER_AMAYA = 'Amaya'; // http://www.w3.org/Amaya/

    const BROWSER_LYNX = 'Lynx'; // http://en.wikipedia.org/wiki/Lynx

    const BROWSER_SAFARI = 'Safari'; // http://apple.com

    const BROWSER_IPHONE = 'iPhone'; // http://apple.com

    const BROWSER_IPOD = 'iPod'; // http://apple.com

    const BROWSER_IPAD = 'iPad'; // http://apple.com

    const BROWSER_CHROME = 'Chrome'; // http://www.google.com/chrome

    const BROWSER_ANDROID = 'Android'; // http://www.android.com/

    const BROWSER_GOOGLEBOT = 'GoogleBot'; // http://en.wikipedia.org/wiki/Googlebot

    const BROWSER_SLURP = 'Yahoo! Slurp'; // http://en.wikipedia.org/wiki/Yahoo!_Slurp

    const BROWSER_W3CVALIDATOR = 'W3C Validator'; // http://validator.w3.org/

    const BROWSER_BLACKBERRY = 'BlackBerry'; // http://www.blackberry.com/

    const BROWSER_ICECAT = 'IceCat'; // http://en.wikipedia.org/wiki/GNU_IceCat

    const BROWSER_NOKIA_S60 = 'Nokia S60 OSS Browser'; // http://en.wikipedia.org/wiki/Web_Browser_for_S60

    const BROWSER_NOKIA = 'Nokia Browser'; // * all other WAP-based browsers on the Nokia Platform

    const BROWSER_MSN = 'MSN Browser'; // http://explorer.msn.com/

    const BROWSER_MSNBOT = 'MSN Bot'; // http://search.msn.com/msnbot.htm

    // http://en.wikipedia.org/wiki/Msnbot  (used for Bing as well)



    const BROWSER_NETSCAPE_NAVIGATOR = 'Netscape Navigator'; // http://browser.netscape.com/ (DEPRECATED)

    const BROWSER_GALEON = 'Galeon'; // http://galeon.sourceforge.net/ (DEPRECATED)

    const BROWSER_NETPOSITIVE = 'NetPositive'; // http://en.wikipedia.org/wiki/NetPositive (DEPRECATED)

    const BROWSER_PHOENIX = 'Phoenix'; // http://en.wikipedia.org/wiki/History_of_Mozilla_Firefox (DEPRECATED)



    const PLATFORM_UNKNOWN = 'unknown';

    const PLATFORM_WINDOWS = 'Windows';

    const PLATFORM_WINDOWS_CE = 'Windows CE';

    const PLATFORM_APPLE = 'Apple';

    const PLATFORM_LINUX = 'Linux';

    const PLATFORM_OS2 = 'OS/2';

    const PLATFORM_BEOS = 'BeOS';

    const PLATFORM_IPHONE = 'iPhone';

    const PLATFORM_IPOD = 'iPod';

    const PLATFORM_IPAD = 'iPad';

    const PLATFORM_BLACKBERRY = 'BlackBerry';

    const PLATFORM_NOKIA = 'Nokia';

    const PLATFORM_FREEBSD = 'FreeBSD';

    const PLATFORM_OPENBSD = 'OpenBSD';

    const PLATFORM_NETBSD = 'NetBSD';

    const PLATFORM_SUNOS = 'SunOS';

    const PLATFORM_OPENSOLARIS = 'OpenSolaris';

    const PLATFORM_ANDROID = 'Android';



    const OPERATING_SYSTEM_UNKNOWN = 'unknown';



    public function __construct($userAgent = "")

    {

        $this->reset();

        if ($userAgent != "") {

            $this->setUserAgent($userAgent);

        } else {

            $this->determine();

        }

    }



    /**

     * Reset all properties

     */

    public function reset()

    {

        $this->_agent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : "";

        $this->_browser_name = self::BROWSER_UNKNOWN;

        $this->_version = self::VERSION_UNKNOWN;

        $this->_platform = self::PLATFORM_UNKNOWN;

        $this->_os = self::OPERATING_SYSTEM_UNKNOWN;

        $this->_is_aol = false;

        $this->_is_mobile = false;

        $this->_is_tablet = false;

        $this->_is_robot = false;

        $this->_is_facebook = false;

        $this->_aol_version = self::VERSION_UNKNOWN;

    }



    /**

     * Check to see if the specific browser is valid

     * @param string $browserName

     * @return bool True if the browser is the specified browser

     */

    function isBrowser($browserName)

    {

        return (0 == strcasecmp($this->_browser_name, trim($browserName)));

    }



    /**

     * The name of the browser.  All return types are from the class contants

     * @return string Name of the browser

     */

    public function getBrowser()

    {

        return $this->_browser_name;

    }



    /**

     * Set the name of the browser

     * @param $browser string The name of the Browser

     */

    public function setBrowser($browser)

    {

        $this->_browser_name = $browser;

    }



    /**

     * The name of the platform.  All return types are from the class contants

     * @return string Name of the browser

     */

    public function getPlatform()

    {

        return $this->_platform;

    }



    /**

     * Set the name of the platform

     * @param string $platform The name of the Platform

     */

    public function setPlatform($platform)

    {

        $this->_platform = $platform;

    }



    /**

     * The version of the browser.

     * @return string Version of the browser (will only contain alpha-numeric characters and a period)

     */

    public function getVersion()

    {

        return $this->_version;

    }



    /**

     * Set the version of the browser

     * @param string $version The version of the Browser

     */

    public function setVersion($version)

    {

        $this->_version = preg_replace('/[^0-9,.,a-z,A-Z-]/', '', $version);

    }



    /**

     * The version of AOL.

     * @return string Version of AOL (will only contain alpha-numeric characters and a period)

     */

    public function getAolVersion()

    {

        return $this->_aol_version;

    }



    /**

     * Set the version of AOL

     * @param string $version The version of AOL

     */

    public function setAolVersion($version)

    {

        $this->_aol_version = preg_replace('/[^0-9,.,a-z,A-Z]/', '', $version);

    }



    /**

     * Is the browser from AOL?

     * @return boolean True if the browser is from AOL otherwise false

     */

    public function isAol()

    {

        return $this->_is_aol;

    }



    /**

     * Is the browser from a mobile device?

     * @return boolean True if the browser is from a mobile device otherwise false

     */

    public function isMobile()

    {

        return $this->_is_mobile;

    }



    /**

     * Is the browser from a tablet device?

     * @return boolean True if the browser is from a tablet device otherwise false

     */

    public function isTablet()

    {

        return $this->_is_tablet;

    }



    /**

     * Is the browser from a robot (ex Slurp,GoogleBot)?

     * @return boolean True if the browser is from a robot otherwise false

     */

    public function isRobot()

    {

        return $this->_is_robot;

    }



    /**

     * Is the browser from facebook?

     * @return boolean True if the browser is from facebook otherwise false

     */

    public function isFacebook()

    {

        return $this->_is_facebook;

    }



    /**

     * Set the browser to be from AOL

     * @param $isAol

     */

    public function setAol($isAol)

    {

        $this->_is_aol = $isAol;

    }



    /**

     * Set the Browser to be mobile

     * @param boolean $value is the browser a mobile browser or not

     */

    protected function setMobile($value = true)

    {

        $this->_is_mobile = $value;

    }



    /**

     * Set the Browser to be tablet

     * @param boolean $value is the browser a tablet browser or not

     */

    protected function setTablet($value = true)

    {

        $this->_is_tablet = $value;

    }



    /**

     * Set the Browser to be a robot

     * @param boolean $value is the browser a robot or not

     */

    protected function setRobot($value = true)

    {

        $this->_is_robot = $value;

    }



    /**

     * Set the Browser to be a Facebook request

     * @param boolean $value is the browser a robot or not

     */

    protected function setFacebook($value = true)

    {

        $this->_is_facebook = $value;

    }



    /**

     * Get the user agent value in use to determine the browser

     * @return string The user agent from the HTTP header

     */

    public function getUserAgent()

    {

        return $this->_agent;

    }



    /**

     * Set the user agent value (the construction will use the HTTP header value - this will overwrite it)

     * @param string $agent_string The value for the User Agent

     */

    public function setUserAgent($agent_string)

    {

        $this->reset();

        $this->_agent = $agent_string;

        $this->determine();

    }



    /**

     * Used to determine if the browser is actually "chromeframe"

     * @since 1.7

     * @return boolean True if the browser is using chromeframe

     */

    public function isChromeFrame()

    {

        return (strpos($this->_agent, "chromeframe") !== false);

    }



    /**

     * Returns a formatted string with a summary of the details of the browser.

     * @return string formatted string with a summary of the browser

     */

    public function __toString()

    {

        return "<strong>Browser Name:</strong> {$this->getBrowser()}<br/>\n" .

        "<strong>Browser Version:</strong> {$this->getVersion()}<br/>\n" .

        "<strong>Browser User Agent String:</strong> {$this->getUserAgent()}<br/>\n" .

        "<strong>Platform:</strong> {$this->getPlatform()}<br/>";

    }



    /**

     * Protected routine to calculate and determine what the browser is in use (including platform)

     */

    protected function determine()

    {

        $this->checkPlatform();

        $this->checkBrowsers();

        $this->checkForAol();

    }



    /**

     * Protected routine to determine the browser type

     * @return boolean True if the browser was detected otherwise false

     */

    protected function checkBrowsers()

    {

        return (

            // well-known, well-used

            // Special Notes:

            // (1) Opera must be checked before FireFox due to the odd

            //     user agents used in some older versions of Opera

            // (2) WebTV is strapped onto Internet Explorer so we must

            //     check for WebTV before IE

            // (3) (deprecated) Galeon is based on Firefox and needs to be

            //     tested before Firefox is tested

            // (4) OmniWeb is based on Safari so OmniWeb check must occur

            //     before Safari

            // (5) Netscape 9+ is based on Firefox so Netscape checks

            //     before FireFox are necessary

            $this->checkBrowserWebTv() ||

            $this->checkBrowserInternetExplorer() ||

            $this->checkBrowserOpera() ||

            $this->checkBrowserGaleon() ||

            $this->checkBrowserNetscapeNavigator9Plus() ||

            $this->checkBrowserFirefox() ||

            $this->checkBrowserChrome() ||

            $this->checkBrowserOmniWeb() ||



            // common mobile

            $this->checkBrowserAndroid() ||

            $this->checkBrowseriPad() ||

            $this->checkBrowseriPod() ||

            $this->checkBrowseriPhone() ||

            $this->checkBrowserBlackBerry() ||

            $this->checkBrowserNokia() ||



            // common bots

            $this->checkBrowserGoogleBot() ||

            $this->checkBrowserMSNBot() ||

            $this->checkBrowserSlurp() ||



            // check for facebook external hit when loading URL

            $this->checkFacebookExternalHit() ||



            // WebKit base check (post mobile and others)

            $this->checkBrowserSafari() ||



            // everyone else

            $this->checkBrowserNetPositive() ||

            $this->checkBrowserFirebird() ||

            $this->checkBrowserKonqueror() ||

            $this->checkBrowserIcab() ||

            $this->checkBrowserPhoenix() ||

            $this->checkBrowserAmaya() ||

            $this->checkBrowserLynx() ||

            $this->checkBrowserShiretoko() ||

            $this->checkBrowserIceCat() ||

            $this->checkBrowserIceweasel() ||

            $this->checkBrowserW3CValidator() ||

            $this->checkBrowserMozilla() /* Mozilla is such an open standard that you must check it last */

        );

    }



    /**

     * Determine if the user is using a BlackBerry (last updated 1.7)

     * @return boolean True if the browser is the BlackBerry browser otherwise false

     */

    protected function checkBrowserBlackBerry()

    {

        if (stripos($this->_agent, 'blackberry') !== false) {

            $aresult = explode("/", stristr($this->_agent, "BlackBerry"));

            $aversion = explode(' ', $aresult[1]);

            $this->setVersion($aversion[0]);

            $this->_browser_name = self::BROWSER_BLACKBERRY;

            $this->setMobile(true);

            return true;

        }

        return false;

    }



    /**

     * Determine if the user is using an AOL User Agent (last updated 1.7)

     * @return boolean True if the browser is from AOL otherwise false

     */

    protected function checkForAol()

    {

        $this->setAol(false);

        $this->setAolVersion(self::VERSION_UNKNOWN);



        if (stripos($this->_agent, 'aol') !== false) {

            $aversion = explode(' ', stristr($this->_agent, 'AOL'));

            $this->setAol(true);

            $this->setAolVersion(preg_replace('/[^0-9\.a-z]/i', '', $aversion[1]));

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is the GoogleBot or not (last updated 1.7)

     * @return boolean True if the browser is the GoogletBot otherwise false

     */

    protected function checkBrowserGoogleBot()

    {

        if (stripos($this->_agent, 'googlebot') !== false) {

            $aresult = explode('/', stristr($this->_agent, 'googlebot'));

            $aversion = explode(' ', $aresult[1]);

            $this->setVersion(str_replace(';', '', $aversion[0]));

            $this->_browser_name = self::BROWSER_GOOGLEBOT;

            $this->setRobot(true);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is the MSNBot or not (last updated 1.9)

     * @return boolean True if the browser is the MSNBot otherwise false

     */

    protected function checkBrowserMSNBot()

    {

        if (stripos($this->_agent, "msnbot") !== false) {

            $aresult = explode("/", stristr($this->_agent, "msnbot"));

            $aversion = explode(" ", $aresult[1]);

            $this->setVersion(str_replace(";", "", $aversion[0]));

            $this->_browser_name = self::BROWSER_MSNBOT;

            $this->setRobot(true);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is the W3C Validator or not (last updated 1.7)

     * @return boolean True if the browser is the W3C Validator otherwise false

     */

    protected function checkBrowserW3CValidator()

    {

        if (stripos($this->_agent, 'W3C-checklink') !== false) {

            $aresult = explode('/', stristr($this->_agent, 'W3C-checklink'));

            $aversion = explode(' ', $aresult[1]);

            $this->setVersion($aversion[0]);

            $this->_browser_name = self::BROWSER_W3CVALIDATOR;

            return true;

        } else if (stripos($this->_agent, 'W3C_Validator') !== false) {

            // Some of the Validator versions do not delineate w/ a slash - add it back in

            $ua = str_replace("W3C_Validator ", "W3C_Validator/", $this->_agent);

            $aresult = explode('/', stristr($ua, 'W3C_Validator'));

            $aversion = explode(' ', $aresult[1]);

            $this->setVersion($aversion[0]);

            $this->_browser_name = self::BROWSER_W3CVALIDATOR;

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is the Yahoo! Slurp Robot or not (last updated 1.7)

     * @return boolean True if the browser is the Yahoo! Slurp Robot otherwise false

     */

    protected function checkBrowserSlurp()

    {

        if (stripos($this->_agent, 'slurp') !== false) {

            $aresult = explode('/', stristr($this->_agent, 'Slurp'));

            $aversion = explode(' ', $aresult[1]);

            $this->setVersion($aversion[0]);

            $this->_browser_name = self::BROWSER_SLURP;

            $this->setRobot(true);

            $this->setMobile(false);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Internet Explorer or not (last updated 1.7)

     * @return boolean True if the browser is Internet Explorer otherwise false

     */

    protected function checkBrowserInternetExplorer()

    {



        // Test for v1 - v1.5 IE

        if (stripos($this->_agent, 'microsoft internet explorer') !== false) {

            $this->setBrowser(self::BROWSER_IE);

            $this->setVersion('1.0');

            $aresult = stristr($this->_agent, '/');

            if (preg_match('/308|425|426|474|0b1/i', $aresult)) {

                $this->setVersion('1.5');

            }

            return true;

        } // Test for versions > 1.5

        else if (stripos($this->_agent, 'msie') !== false && stripos($this->_agent, 'opera') === false) {

            // See if the browser is the odd MSN Explorer

            if (stripos($this->_agent, 'msnb') !== false) {

                $aresult = explode(' ', stristr(str_replace(';', '; ', $this->_agent), 'MSN'));

                $this->setBrowser(self::BROWSER_MSN);

                $this->setVersion(str_replace(array('(', ')', ';'), '', $aresult[1]));

                return true;

            }

            $aresult = explode(' ', stristr(str_replace(';', '; ', $this->_agent), 'msie'));

            $this->setBrowser(self::BROWSER_IE);

            $this->setVersion(str_replace(array('(', ')', ';'), '', $aresult[1]));

            return true;

        } // Test for Pocket IE

        else if (stripos($this->_agent, 'mspie') !== false || stripos($this->_agent, 'pocket') !== false) {

            $aresult = explode(' ', stristr($this->_agent, 'mspie'));

            $this->setPlatform(self::PLATFORM_WINDOWS_CE);

            $this->setBrowser(self::BROWSER_POCKET_IE);

            $this->setMobile(true);



            if (stripos($this->_agent, 'mspie') !== false) {

                $this->setVersion($aresult[1]);

            } else {

                $aversion = explode('/', $this->_agent);

                $this->setVersion($aversion[1]);

            }

            return true;

        } else if(stripos($this->_agent, 'trident') !== false) {

            // >= IE 11

            $this->setBrowser(self::BROWSER_IE);



            // version

            $result = explode("rv:", $this->_agent);

            $this->setVersion(preg_replace("/[^0-9.]+/", "", $result[1]));



            // remove Gecko out of the user-agent, otherwise the mozilla check will success

            $this->_agent = str_replace(array("Mozilla", "Gecko"), "MSIE", $this->_agent);

        }

        return false;

    }



    /**

     * Determine if the browser is Opera or not (last updated 1.7)

     * @return boolean True if the browser is Opera otherwise false

     */

    protected function checkBrowserOpera()

    {

        if (stripos($this->_agent, 'opera mini') !== false) {

            $resultant = stristr($this->_agent, 'opera mini');

            if (preg_match('/\//', $resultant)) {

                $aresult = explode('/', $resultant);

                $aversion = explode(' ', $aresult[1]);

                $this->setVersion($aversion[0]);

            } else {

                $aversion = explode(' ', stristr($resultant, 'opera mini'));

                $this->setVersion($aversion[1]);

            }

            $this->_browser_name = self::BROWSER_OPERA_MINI;

            $this->setMobile(true);

            return true;

        } else if (stripos($this->_agent, 'opera') !== false) {

            $resultant = stristr($this->_agent, 'opera');

            if (preg_match('/Version\/(1*.*)$/', $resultant, $matches)) {

                $this->setVersion($matches[1]);

            } else if (preg_match('/\//', $resultant)) {

                $aresult = explode('/', str_replace("(", " ", $resultant));

                $aversion = explode(' ', $aresult[1]);

                $this->setVersion($aversion[0]);

            } else {

                $aversion = explode(' ', stristr($resultant, 'opera'));

                $this->setVersion(isset($aversion[1]) ? $aversion[1] : "");

            }

            if (stripos($this->_agent, 'Opera Mobi') !== false) {

                $this->setMobile(true);

            }

            $this->_browser_name = self::BROWSER_OPERA;

            return true;

        } else if (stripos($this->_agent, 'OPR') !== false) {

            $resultant = stristr($this->_agent, 'OPR');

            if (preg_match('/\//', $resultant)) {

                $aresult = explode('/', str_replace("(", " ", $resultant));

                $aversion = explode(' ', $aresult[1]);

                $this->setVersion($aversion[0]);

            }

            if (stripos($this->_agent, 'Mobile') !== false) {

                $this->setMobile(true);

            }

            $this->_browser_name = self::BROWSER_OPERA;

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Chrome or not (last updated 1.7)

     * @return boolean True if the browser is Chrome otherwise false

     */

    protected function checkBrowserChrome()

    {

        if (stripos($this->_agent, 'Chrome') !== false) {

            $aresult = explode('/', stristr($this->_agent, 'Chrome'));

            $aversion = explode(' ', $aresult[1]);

            $this->setVersion($aversion[0]);

            $this->setBrowser(self::BROWSER_CHROME);

            //Chrome on Android

            if (stripos($this->_agent, 'Android') !== false) {

                $this->setMobile(true);

            }

            return true;

        }

        return false;

    }





    /**

     * Determine if the browser is WebTv or not (last updated 1.7)

     * @return boolean True if the browser is WebTv otherwise false

     */

    protected function checkBrowserWebTv()

    {

        if (stripos($this->_agent, 'webtv') !== false) {

            $aresult = explode('/', stristr($this->_agent, 'webtv'));

            $aversion = explode(' ', $aresult[1]);

            $this->setVersion($aversion[0]);

            $this->setBrowser(self::BROWSER_WEBTV);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is NetPositive or not (last updated 1.7)

     * @return boolean True if the browser is NetPositive otherwise false

     */

    protected function checkBrowserNetPositive()

    {

        if (stripos($this->_agent, 'NetPositive') !== false) {

            $aresult = explode('/', stristr($this->_agent, 'NetPositive'));

            $aversion = explode(' ', $aresult[1]);

            $this->setVersion(str_replace(array('(', ')', ';'), '', $aversion[0]));

            $this->setBrowser(self::BROWSER_NETPOSITIVE);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Galeon or not (last updated 1.7)

     * @return boolean True if the browser is Galeon otherwise false

     */

    protected function checkBrowserGaleon()

    {

        if (stripos($this->_agent, 'galeon') !== false) {

            $aresult = explode(' ', stristr($this->_agent, 'galeon'));

            $aversion = explode('/', $aresult[0]);

            $this->setVersion($aversion[1]);

            $this->setBrowser(self::BROWSER_GALEON);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Konqueror or not (last updated 1.7)

     * @return boolean True if the browser is Konqueror otherwise false

     */

    protected function checkBrowserKonqueror()

    {

        if (stripos($this->_agent, 'Konqueror') !== false) {

            $aresult = explode(' ', stristr($this->_agent, 'Konqueror'));

            $aversion = explode('/', $aresult[0]);

            $this->setVersion($aversion[1]);

            $this->setBrowser(self::BROWSER_KONQUEROR);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is iCab or not (last updated 1.7)

     * @return boolean True if the browser is iCab otherwise false

     */

    protected function checkBrowserIcab()

    {

        if (stripos($this->_agent, 'icab') !== false) {

            $aversion = explode(' ', stristr(str_replace('/', ' ', $this->_agent), 'icab'));

            $this->setVersion($aversion[1]);

            $this->setBrowser(self::BROWSER_ICAB);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is OmniWeb or not (last updated 1.7)

     * @return boolean True if the browser is OmniWeb otherwise false

     */

    protected function checkBrowserOmniWeb()

    {

        if (stripos($this->_agent, 'omniweb') !== false) {

            $aresult = explode('/', stristr($this->_agent, 'omniweb'));

            $aversion = explode(' ', isset($aresult[1]) ? $aresult[1] : "");

            $this->setVersion($aversion[0]);

            $this->setBrowser(self::BROWSER_OMNIWEB);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Phoenix or not (last updated 1.7)

     * @return boolean True if the browser is Phoenix otherwise false

     */

    protected function checkBrowserPhoenix()

    {

        if (stripos($this->_agent, 'Phoenix') !== false) {

            $aversion = explode('/', stristr($this->_agent, 'Phoenix'));

            $this->setVersion($aversion[1]);

            $this->setBrowser(self::BROWSER_PHOENIX);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Firebird or not (last updated 1.7)

     * @return boolean True if the browser is Firebird otherwise false

     */

    protected function checkBrowserFirebird()

    {

        if (stripos($this->_agent, 'Firebird') !== false) {

            $aversion = explode('/', stristr($this->_agent, 'Firebird'));

            $this->setVersion($aversion[1]);

            $this->setBrowser(self::BROWSER_FIREBIRD);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Netscape Navigator 9+ or not (last updated 1.7)

     * NOTE: (http://browser.netscape.com/ - Official support ended on March 1st, 2008)

     * @return boolean True if the browser is Netscape Navigator 9+ otherwise false

     */

    protected function checkBrowserNetscapeNavigator9Plus()

    {

        if (stripos($this->_agent, 'Firefox') !== false && preg_match('/Navigator\/([^ ]*)/i', $this->_agent, $matches)) {

            $this->setVersion($matches[1]);

            $this->setBrowser(self::BROWSER_NETSCAPE_NAVIGATOR);

            return true;

        } else if (stripos($this->_agent, 'Firefox') === false && preg_match('/Netscape6?\/([^ ]*)/i', $this->_agent, $matches)) {

            $this->setVersion($matches[1]);

            $this->setBrowser(self::BROWSER_NETSCAPE_NAVIGATOR);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Shiretoko or not (https://wiki.mozilla.org/Projects/shiretoko) (last updated 1.7)

     * @return boolean True if the browser is Shiretoko otherwise false

     */

    protected function checkBrowserShiretoko()

    {

        if (stripos($this->_agent, 'Mozilla') !== false && preg_match('/Shiretoko\/([^ ]*)/i', $this->_agent, $matches)) {

            $this->setVersion($matches[1]);

            $this->setBrowser(self::BROWSER_SHIRETOKO);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Ice Cat or not (http://en.wikipedia.org/wiki/GNU_IceCat) (last updated 1.7)

     * @return boolean True if the browser is Ice Cat otherwise false

     */

    protected function checkBrowserIceCat()

    {

        if (stripos($this->_agent, 'Mozilla') !== false && preg_match('/IceCat\/([^ ]*)/i', $this->_agent, $matches)) {

            $this->setVersion($matches[1]);

            $this->setBrowser(self::BROWSER_ICECAT);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Nokia or not (last updated 1.7)

     * @return boolean True if the browser is Nokia otherwise false

     */

    protected function checkBrowserNokia()

    {

        if (preg_match("/Nokia([^\/]+)\/([^ SP]+)/i", $this->_agent, $matches)) {

            $this->setVersion($matches[2]);

            if (stripos($this->_agent, 'Series60') !== false || strpos($this->_agent, 'S60') !== false) {

                $this->setBrowser(self::BROWSER_NOKIA_S60);

            } else {

                $this->setBrowser(self::BROWSER_NOKIA);

            }

            $this->setMobile(true);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Firefox or not (last updated 1.7)

     * @return boolean True if the browser is Firefox otherwise false

     */

    protected function checkBrowserFirefox()

    {

        if (stripos($this->_agent, 'safari') === false) {

            if (preg_match("/Firefox[\/ \(]([^ ;\)]+)/i", $this->_agent, $matches)) {

                $this->setVersion($matches[1]);

                $this->setBrowser(self::BROWSER_FIREFOX);

                return true;

            } else if (preg_match("/Firefox$/i", $this->_agent, $matches)) {

                $this->setVersion("");

                $this->setBrowser(self::BROWSER_FIREFOX);

                return true;

            }

        }

        return false;

    }



    /**

     * Determine if the browser is Firefox or not (last updated 1.7)

     * @return boolean True if the browser is Firefox otherwise false

     */

    protected function checkBrowserIceweasel()

    {

        if (stripos($this->_agent, 'Iceweasel') !== false) {

            $aresult = explode('/', stristr($this->_agent, 'Iceweasel'));

            $aversion = explode(' ', $aresult[1]);

            $this->setVersion($aversion[0]);

            $this->setBrowser(self::BROWSER_ICEWEASEL);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Mozilla or not (last updated 1.7)

     * @return boolean True if the browser is Mozilla otherwise false

     */

    protected function checkBrowserMozilla()

    {

        if (stripos($this->_agent, 'mozilla') !== false && preg_match('/rv:[0-9].[0-9][a-b]?/i', $this->_agent) && stripos($this->_agent, 'netscape') === false) {

            $aversion = explode(' ', stristr($this->_agent, 'rv:'));

            preg_match('/rv:[0-9].[0-9][a-b]?/i', $this->_agent, $aversion);

            $this->setVersion(str_replace('rv:', '', $aversion[0]));

            $this->setBrowser(self::BROWSER_MOZILLA);

            return true;

        } else if (stripos($this->_agent, 'mozilla') !== false && preg_match('/rv:[0-9]\.[0-9]/i', $this->_agent) && stripos($this->_agent, 'netscape') === false) {

            $aversion = explode('', stristr($this->_agent, 'rv:'));

            $this->setVersion(str_replace('rv:', '', $aversion[0]));

            $this->setBrowser(self::BROWSER_MOZILLA);

            return true;

        } else if (stripos($this->_agent, 'mozilla') !== false && preg_match('/mozilla\/([^ ]*)/i', $this->_agent, $matches) && stripos($this->_agent, 'netscape') === false) {

            $this->setVersion($matches[1]);

            $this->setBrowser(self::BROWSER_MOZILLA);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Lynx or not (last updated 1.7)

     * @return boolean True if the browser is Lynx otherwise false

     */

    protected function checkBrowserLynx()

    {

        if (stripos($this->_agent, 'lynx') !== false) {

            $aresult = explode('/', stristr($this->_agent, 'Lynx'));

            $aversion = explode(' ', (isset($aresult[1]) ? $aresult[1] : ""));

            $this->setVersion($aversion[0]);

            $this->setBrowser(self::BROWSER_LYNX);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Amaya or not (last updated 1.7)

     * @return boolean True if the browser is Amaya otherwise false

     */

    protected function checkBrowserAmaya()

    {

        if (stripos($this->_agent, 'amaya') !== false) {

            $aresult = explode('/', stristr($this->_agent, 'Amaya'));

            $aversion = explode(' ', $aresult[1]);

            $this->setVersion($aversion[0]);

            $this->setBrowser(self::BROWSER_AMAYA);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Safari or not (last updated 1.7)

     * @return boolean True if the browser is Safari otherwise false

     */

    protected function checkBrowserSafari()

    {

        if (stripos($this->_agent, 'Safari') !== false

            && stripos($this->_agent, 'iPhone') === false

            && stripos($this->_agent, 'iPod') === false) {



            $aresult = explode('/', stristr($this->_agent, 'Version'));

            if (isset($aresult[1])) {

                $aversion = explode(' ', $aresult[1]);

                $this->setVersion($aversion[0]);

            } else {

                $this->setVersion(self::VERSION_UNKNOWN);

            }

            $this->setBrowser(self::BROWSER_SAFARI);

            return true;

        }

        return false;

    }



    /**

     * Detect if URL is loaded from FacebookExternalHit

     * @return boolean True if it detects FacebookExternalHit otherwise false

     */

    protected function checkFacebookExternalHit()

    {

        if(stristr($this->_agent,'FacebookExternalHit'))

        {

            $this->setRobot(true);

            $this->setFacebook(true);

            return true;

        }

        return false;

    }



    /**

     * Detect if URL is being loaded from internal Facebook browser

     * @return boolean True if it detects internal Facebook browser otherwise false

     */

    protected function checkForFacebookIos()

    {

        if(stristr($this->_agent,'FBIOS'))

        {

            $this->setFacebook(true);

            return true;

        }

        return false;

    }



    /**

     * Detect Version for the Safari browser on iOS devices

     * @return boolean True if it detects the version correctly otherwise false

     */

    protected function getSafariVersionOnIos()

    {

        $aresult = explode('/',stristr($this->_agent,'Version'));

        if( isset($aresult[1]) )

        {

            $aversion = explode(' ',$aresult[1]);

            $this->setVersion($aversion[0]);

            return true;

        }

        return false;

    }



    /**

     * Detect Version for the Chrome browser on iOS devices

     * @return boolean True if it detects the version correctly otherwise false

     */

    protected function getChromeVersionOnIos()

    {

        $aresult = explode('/',stristr($this->_agent,'CriOS'));

        if( isset($aresult[1]) )

        {

            $aversion = explode(' ',$aresult[1]);

            $this->setVersion($aversion[0]);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is iPhone or not (last updated 1.7)

     * @return boolean True if the browser is iPhone otherwise false

     */

    protected function checkBrowseriPhone() {

        if( stripos($this->_agent,'iPhone') !== false ) {

            $this->setVersion(self::VERSION_UNKNOWN);

            $this->getSafariVersionOnIos();

            $this->getChromeVersionOnIos();

            $this->checkForFacebookIos();

            $this->setMobile(true);

            $this->setBrowser(self::BROWSER_IPHONE);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is iPad or not (last updated 1.7)

     * @return boolean True if the browser is iPad otherwise false

     */

    protected function checkBrowseriPad() {

        if( stripos($this->_agent,'iPad') !== false ) {

            $this->setVersion(self::VERSION_UNKNOWN);

            $this->getSafariVersionOnIos();

            $this->getChromeVersionOnIos();

            $this->checkForFacebookIos();

            $this->setTablet(true);

            $this->setBrowser(self::BROWSER_IPAD);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is iPod or not (last updated 1.7)

     * @return boolean True if the browser is iPod otherwise false

     */

    protected function checkBrowseriPod() {

        if( stripos($this->_agent,'iPod') !== false ) {

            $this->setVersion(self::VERSION_UNKNOWN);

            $this->getSafariVersionOnIos();

            $this->getChromeVersionOnIos();

            $this->checkForFacebookIos();

            $this->setMobile(true);

            $this->setBrowser(self::BROWSER_IPOD);

            return true;

        }

        return false;

    }



    /**

     * Determine if the browser is Android or not (last updated 1.7)

     * @return boolean True if the browser is Android otherwise false

     */

    protected function checkBrowserAndroid()

    {

        if (stripos($this->_agent, 'Android') !== false) {

            $aresult = explode(' ', stristr($this->_agent, 'Android'));

            if (isset($aresult[1])) {

                $aversion = explode(' ', $aresult[1]);

                $this->setVersion($aversion[0]);

            } else {

                $this->setVersion(self::VERSION_UNKNOWN);

            }

            $this->setMobile(true);

            $this->setBrowser(self::BROWSER_ANDROID);

            return true;

        }

        return false;

    }



    /**

     * Determine the user's platform (last updated 1.7)

     */

    protected function checkPlatform()

    {

        if (stripos($this->_agent, 'windows') !== false)

        {

            $this->_platform = self::PLATFORM_WINDOWS;

        }

        else if (stripos($this->_agent, 'iPad') !== false)

        {

            $this->_platform = self::PLATFORM_IPAD;

        }

        else if (stripos($this->_agent, 'iPod') !== false)

        {

            $this->_platform = self::PLATFORM_IPOD;

        }

        else if (stripos($this->_agent, 'iPhone') !== false)

        {

            $this->_platform = self::PLATFORM_IPHONE;

        }

        elseif (stripos($this->_agent, 'mac') !== false)

        {

            $this->_platform = self::PLATFORM_APPLE;

        }

        elseif (stripos($this->_agent, 'android') !== false)

        {

            $this->_platform = self::PLATFORM_ANDROID;

        }

        elseif (stripos($this->_agent, 'linux') !== false)

        {

            $this->_platform = self::PLATFORM_LINUX;

        }

        else if (stripos($this->_agent, 'Nokia') !== false)

        {

            $this->_platform = self::PLATFORM_NOKIA;

        }

        else if (stripos($this->_agent, 'BlackBerry') !== false)

        {

            $this->_platform = self::PLATFORM_BLACKBERRY;

        }

        elseif (stripos($this->_agent, 'FreeBSD') !== false)

        {

            $this->_platform = self::PLATFORM_FREEBSD;

        }

        elseif (stripos($this->_agent, 'OpenBSD') !== false)

        {

            $this->_platform = self::PLATFORM_OPENBSD;

        }

        elseif (stripos($this->_agent, 'NetBSD') !== false)

        {

            $this->_platform = self::PLATFORM_NETBSD;

        }

        elseif (stripos($this->_agent, 'OpenSolaris') !== false)

        {

            $this->_platform = self::PLATFORM_OPENSOLARIS;

        }

        elseif (stripos($this->_agent, 'SunOS') !== false)

        {

            $this->_platform = self::PLATFORM_SUNOS;

        }

        elseif (stripos($this->_agent, 'OS\/2') !== false)

        {

            $this->_platform = self::PLATFORM_OS2;

        }

        elseif (stripos($this->_agent, 'BeOS') !== false)

        {

            $this->_platform = self::PLATFORM_BEOS;

        }

        elseif (stripos($this->_agent, 'win') !== false)

        {

            $this->_platform = self::PLATFORM_WINDOWS;

        }



    }

}

