680 lines
15 KiB
PHP
680 lines
15 KiB
PHP
|
<?php
|
||
|
|
/**
|
||
|
|
* @package Joomla.Platform
|
||
|
|
* @subpackage Environment
|
||
|
|
*
|
||
|
|
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
|
||
|
|
* @license GNU General Public License version 2 or later; see LICENSE
|
||
|
|
*/
|
||
|
|
|
||
|
|
defined('JPATH_PLATFORM') or die;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Browser class, provides capability information about the current web client.
|
||
|
|
*
|
||
|
|
* Browser identification is performed by examining the HTTP_USER_AGENT
|
||
|
|
* environment variable provided by the web server.
|
||
|
|
*
|
||
|
|
* This class has many influences from the lib/Browser.php code in
|
||
|
|
* version 3 of Horde by Chuck Hagenbuch and Jon Parise.
|
||
|
|
*
|
||
|
|
* @package Joomla.Platform
|
||
|
|
* @subpackage Environment
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
class JBrowser
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* @var integer Major version number
|
||
|
|
* @since 12.1
|
||
|
|
*/
|
||
|
|
protected $majorVersion = 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var integer Minor version number
|
||
|
|
* @since 12.1
|
||
|
|
*/
|
||
|
|
protected $minorVersion = 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var string Browser name.
|
||
|
|
* @since 12.1
|
||
|
|
*/
|
||
|
|
protected $browser = '';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var string Full user agent string.
|
||
|
|
* @since 12.1
|
||
|
|
*/
|
||
|
|
protected $agent = '';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var string Lower-case user agent string
|
||
|
|
* @since 12.1
|
||
|
|
*/
|
||
|
|
protected $lowerAgent = '';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var string HTTP_ACCEPT string.
|
||
|
|
* @since 12.1
|
||
|
|
*/
|
||
|
|
protected $accept = '';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var array Parsed HTTP_ACCEPT string
|
||
|
|
* @since 12.1
|
||
|
|
*/
|
||
|
|
protected $acceptParsed = array();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var string Platform the browser is running on
|
||
|
|
* @since 12.1
|
||
|
|
*/
|
||
|
|
protected $platform = '';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var array Known robots.
|
||
|
|
* @since 12.1
|
||
|
|
*/
|
||
|
|
protected $robots = array(
|
||
|
|
/* The most common ones. */
|
||
|
|
'Googlebot',
|
||
|
|
'msnbot',
|
||
|
|
'Slurp',
|
||
|
|
'Yahoo',
|
||
|
|
/* The rest alphabetically. */
|
||
|
|
'Arachnoidea',
|
||
|
|
'ArchitextSpider',
|
||
|
|
'Ask Jeeves',
|
||
|
|
'B-l-i-t-z-Bot',
|
||
|
|
'Baiduspider',
|
||
|
|
'BecomeBot',
|
||
|
|
'cfetch',
|
||
|
|
'ConveraCrawler',
|
||
|
|
'ExtractorPro',
|
||
|
|
'FAST-WebCrawler',
|
||
|
|
'FDSE robot',
|
||
|
|
'fido',
|
||
|
|
'geckobot',
|
||
|
|
'Gigabot',
|
||
|
|
'Girafabot',
|
||
|
|
'grub-client',
|
||
|
|
'Gulliver',
|
||
|
|
'HTTrack',
|
||
|
|
'ia_archiver',
|
||
|
|
'InfoSeek',
|
||
|
|
'kinjabot',
|
||
|
|
'KIT-Fireball',
|
||
|
|
'larbin',
|
||
|
|
'LEIA',
|
||
|
|
'lmspider',
|
||
|
|
'Lycos_Spider',
|
||
|
|
'Mediapartners-Google',
|
||
|
|
'MuscatFerret',
|
||
|
|
'NaverBot',
|
||
|
|
'OmniExplorer_Bot',
|
||
|
|
'polybot',
|
||
|
|
'Pompos',
|
||
|
|
'Scooter',
|
||
|
|
'Teoma',
|
||
|
|
'TheSuBot',
|
||
|
|
'TurnitinBot',
|
||
|
|
'Ultraseek',
|
||
|
|
'ViolaBot',
|
||
|
|
'webbandit',
|
||
|
|
'www.almaden.ibm.com/cs/crawler',
|
||
|
|
'ZyBorg');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var boolean Is this a mobile browser?
|
||
|
|
* @since 12.1
|
||
|
|
*/
|
||
|
|
protected $mobile = false;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* List of viewable image MIME subtypes.
|
||
|
|
* This list of viewable images works for IE and Netscape/Mozilla.
|
||
|
|
*
|
||
|
|
* @var array
|
||
|
|
* @since 12.1
|
||
|
|
*/
|
||
|
|
protected $images = array('jpeg', 'gif', 'png', 'pjpeg', 'x-png', 'bmp');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @var array JBrowser instances container.
|
||
|
|
* @since 11.3
|
||
|
|
*/
|
||
|
|
protected static $instances = array();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Create a browser instance (constructor).
|
||
|
|
*
|
||
|
|
* @param string $userAgent The browser string to parse.
|
||
|
|
* @param string $accept The HTTP_ACCEPT settings to use.
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function __construct($userAgent = null, $accept = null)
|
||
|
|
{
|
||
|
|
$this->match($userAgent, $accept);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the global Browser object, only creating it
|
||
|
|
* if it doesn't already exist.
|
||
|
|
*
|
||
|
|
* @param string $userAgent The browser string to parse.
|
||
|
|
* @param string $accept The HTTP_ACCEPT settings to use.
|
||
|
|
*
|
||
|
|
* @return JBrowser The Browser object.
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public static function getInstance($userAgent = null, $accept = null)
|
||
|
|
{
|
||
|
|
$signature = serialize(array($userAgent, $accept));
|
||
|
|
|
||
|
|
if (empty(self::$instances[$signature]))
|
||
|
|
{
|
||
|
|
self::$instances[$signature] = new JBrowser($userAgent, $accept);
|
||
|
|
}
|
||
|
|
|
||
|
|
return self::$instances[$signature];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parses the user agent string and inititializes the object with
|
||
|
|
* all the known features and quirks for the given browser.
|
||
|
|
*
|
||
|
|
* @param string $userAgent The browser string to parse.
|
||
|
|
* @param string $accept The HTTP_ACCEPT settings to use.
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function match($userAgent = null, $accept = null)
|
||
|
|
{
|
||
|
|
// Set our agent string.
|
||
|
|
if (is_null($userAgent))
|
||
|
|
{
|
||
|
|
if (isset($_SERVER['HTTP_USER_AGENT']))
|
||
|
|
{
|
||
|
|
$this->agent = trim($_SERVER['HTTP_USER_AGENT']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->agent = $userAgent;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->lowerAgent = strtolower($this->agent);
|
||
|
|
|
||
|
|
// Set our accept string.
|
||
|
|
if (is_null($accept))
|
||
|
|
{
|
||
|
|
if (isset($_SERVER['HTTP_ACCEPT']))
|
||
|
|
{
|
||
|
|
$this->accept = strtolower(trim($_SERVER['HTTP_ACCEPT']));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->accept = strtolower($accept);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!empty($this->agent))
|
||
|
|
{
|
||
|
|
$this->_setPlatform();
|
||
|
|
|
||
|
|
if (strpos($this->lowerAgent, 'mobileexplorer') !== false
|
||
|
|
|| strpos($this->lowerAgent, 'openwave') !== false
|
||
|
|
|| strpos($this->lowerAgent, 'opera mini') !== false
|
||
|
|
|| strpos($this->lowerAgent, 'opera mobi') !== false
|
||
|
|
|| strpos($this->lowerAgent, 'operamini') !== false)
|
||
|
|
{
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (preg_match('|Opera[/ ]([0-9.]+)|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
$this->setBrowser('opera');
|
||
|
|
list ($this->majorVersion, $this->minorVersion) = explode('.', $version[1]);
|
||
|
|
|
||
|
|
/* Due to changes in Opera UA, we need to check Version/xx.yy,
|
||
|
|
* but only if version is > 9.80. See: http://dev.opera.com/articles/view/opera-ua-string-changes/ */
|
||
|
|
if ($this->majorVersion == 9 && $this->minorVersion >= 80)
|
||
|
|
{
|
||
|
|
$this->identifyBrowserVersion();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elseif (preg_match('|Chrome[/ ]([0-9.]+)|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
$this->setBrowser('chrome');
|
||
|
|
list ($this->majorVersion, $this->minorVersion) = explode('.', $version[1]);
|
||
|
|
}
|
||
|
|
elseif (preg_match('|CrMo[/ ]([0-9.]+)|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
$this->setBrowser('chrome');
|
||
|
|
list ($this->majorVersion, $this->minorVersion) = explode('.', $version[1]);
|
||
|
|
}
|
||
|
|
elseif (preg_match('|CriOS[/ ]([0-9.]+)|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
$this->setBrowser('chrome');
|
||
|
|
list ($this->majorVersion, $this->minorVersion) = explode('.', $version[1]);
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (strpos($this->lowerAgent, 'elaine/') !== false
|
||
|
|
|| strpos($this->lowerAgent, 'palmsource') !== false
|
||
|
|
|| strpos($this->lowerAgent, 'digital paths') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('palm');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif ((preg_match('|MSIE ([0-9.]+)|', $this->agent, $version)) || (preg_match('|Internet Explorer/([0-9.]+)|', $this->agent, $version)))
|
||
|
|
{
|
||
|
|
$this->setBrowser('msie');
|
||
|
|
|
||
|
|
if (strpos($version[1], '.') !== false)
|
||
|
|
{
|
||
|
|
list ($this->majorVersion, $this->minorVersion) = explode('.', $version[1]);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->majorVersion = $version[1];
|
||
|
|
$this->minorVersion = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Some Handhelds have their screen resolution in the
|
||
|
|
* user agent string, which we can use to look for
|
||
|
|
* mobile agents.
|
||
|
|
*/
|
||
|
|
if (preg_match('/; (120x160|240x280|240x320|320x320)\)/', $this->agent))
|
||
|
|
{
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elseif (preg_match('|amaya/([0-9.]+)|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
$this->setBrowser('amaya');
|
||
|
|
$this->majorVersion = $version[1];
|
||
|
|
|
||
|
|
if (isset($version[2]))
|
||
|
|
{
|
||
|
|
$this->minorVersion = $version[2];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elseif (preg_match('|ANTFresco/([0-9]+)|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
$this->setBrowser('fresco');
|
||
|
|
}
|
||
|
|
elseif (strpos($this->lowerAgent, 'avantgo') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('avantgo');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (preg_match('|Konqueror/([0-9]+)|', $this->agent, $version) || preg_match('|Safari/([0-9]+)\.?([0-9]+)?|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
// Konqueror and Apple's Safari both use the KHTML
|
||
|
|
// rendering engine.
|
||
|
|
$this->setBrowser('konqueror');
|
||
|
|
$this->majorVersion = $version[1];
|
||
|
|
|
||
|
|
if (isset($version[2]))
|
||
|
|
{
|
||
|
|
$this->minorVersion = $version[2];
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strpos($this->agent, 'Safari') !== false && $this->majorVersion >= 60)
|
||
|
|
{
|
||
|
|
// Safari.
|
||
|
|
$this->setBrowser('safari');
|
||
|
|
$this->identifyBrowserVersion();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
elseif (preg_match('|Mozilla/([0-9.]+)|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
$this->setBrowser('mozilla');
|
||
|
|
|
||
|
|
list ($this->majorVersion, $this->minorVersion) = explode('.', $version[1]);
|
||
|
|
}
|
||
|
|
elseif (preg_match('|Lynx/([0-9]+)|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
$this->setBrowser('lynx');
|
||
|
|
}
|
||
|
|
elseif (preg_match('|Links \(([0-9]+)|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
$this->setBrowser('links');
|
||
|
|
}
|
||
|
|
elseif (preg_match('|HotJava/([0-9]+)|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
$this->setBrowser('hotjava');
|
||
|
|
}
|
||
|
|
elseif (strpos($this->agent, 'UP/') !== false || strpos($this->agent, 'UP.B') !== false || strpos($this->agent, 'UP.L') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('up');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (strpos($this->agent, 'Xiino/') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('xiino');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (strpos($this->agent, 'Palmscape/') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('palmscape');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (strpos($this->agent, 'Nokia') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('nokia');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (strpos($this->agent, 'Ericsson') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('ericsson');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (strpos($this->lowerAgent, 'wap') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('wap');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (strpos($this->lowerAgent, 'docomo') !== false || strpos($this->lowerAgent, 'portalmmm') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('imode');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (strpos($this->agent, 'BlackBerry') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('blackberry');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (strpos($this->agent, 'MOT-') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('motorola');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
elseif (strpos($this->lowerAgent, 'j-') !== false)
|
||
|
|
{
|
||
|
|
$this->setBrowser('mml');
|
||
|
|
$this->mobile = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Match the platform of the browser.
|
||
|
|
*
|
||
|
|
* This is a pretty simplistic implementation, but it's intended
|
||
|
|
* to let us tell what line breaks to send, so it's good enough
|
||
|
|
* for its purpose.
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
protected function _setPlatform()
|
||
|
|
{
|
||
|
|
if (strpos($this->lowerAgent, 'wind') !== false)
|
||
|
|
{
|
||
|
|
$this->platform = 'win';
|
||
|
|
}
|
||
|
|
elseif (strpos($this->lowerAgent, 'mac') !== false)
|
||
|
|
{
|
||
|
|
$this->platform = 'mac';
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$this->platform = 'unix';
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return the currently matched platform.
|
||
|
|
*
|
||
|
|
* @return string The user's platform.
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function getPlatform()
|
||
|
|
{
|
||
|
|
return $this->platform;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set browser version, not by engine version
|
||
|
|
* Fallback to use when no other method identify the engine version
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
protected function identifyBrowserVersion()
|
||
|
|
{
|
||
|
|
if (preg_match('|Version[/ ]([0-9.]+)|', $this->agent, $version))
|
||
|
|
{
|
||
|
|
list ($this->majorVersion, $this->minorVersion) = explode('.', $version[1]);
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Can't identify browser version
|
||
|
|
$this->majorVersion = 0;
|
||
|
|
$this->minorVersion = 0;
|
||
|
|
JLog::add("Can't identify browser version. Agent: " . $this->agent, JLog::NOTICE);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the current browser.
|
||
|
|
*
|
||
|
|
* @param string $browser The browser to set as current.
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function setBrowser($browser)
|
||
|
|
{
|
||
|
|
$this->browser = $browser;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve the current browser.
|
||
|
|
*
|
||
|
|
* @return string The current browser.
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function getBrowser()
|
||
|
|
{
|
||
|
|
return $this->browser;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve the current browser's major version.
|
||
|
|
*
|
||
|
|
* @return integer The current browser's major version
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function getMajor()
|
||
|
|
{
|
||
|
|
return $this->majorVersion;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve the current browser's minor version.
|
||
|
|
*
|
||
|
|
* @return integer The current browser's minor version.
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function getMinor()
|
||
|
|
{
|
||
|
|
return $this->minorVersion;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieve the current browser's version.
|
||
|
|
*
|
||
|
|
* @return string The current browser's version.
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function getVersion()
|
||
|
|
{
|
||
|
|
return $this->majorVersion . '.' . $this->minorVersion;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Return the full browser agent string.
|
||
|
|
*
|
||
|
|
* @return string The browser agent string
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function getAgentString()
|
||
|
|
{
|
||
|
|
return $this->agent;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the server protocol in use on the current server.
|
||
|
|
*
|
||
|
|
* @return string The HTTP server protocol version.
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function getHTTPProtocol()
|
||
|
|
{
|
||
|
|
if (isset($_SERVER['SERVER_PROTOCOL']))
|
||
|
|
{
|
||
|
|
if (($pos = strrpos($_SERVER['SERVER_PROTOCOL'], '/')))
|
||
|
|
{
|
||
|
|
return substr($_SERVER['SERVER_PROTOCOL'], $pos + 1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines if a browser can display a given MIME type.
|
||
|
|
*
|
||
|
|
* Note that image/jpeg and image/pjpeg *appear* to be the same
|
||
|
|
* entity, but Mozilla doesn't seem to want to accept the latter.
|
||
|
|
* For our purposes, we will treat them the same.
|
||
|
|
*
|
||
|
|
* @param string $mimetype The MIME type to check.
|
||
|
|
*
|
||
|
|
* @return boolean True if the browser can display the MIME type.
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function isViewable($mimetype)
|
||
|
|
{
|
||
|
|
$mimetype = strtolower($mimetype);
|
||
|
|
list ($type, $subtype) = explode('/', $mimetype);
|
||
|
|
|
||
|
|
if (!empty($this->accept))
|
||
|
|
{
|
||
|
|
$wildcard_match = false;
|
||
|
|
|
||
|
|
if (strpos($this->accept, $mimetype) !== false)
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strpos($this->accept, '*/*') !== false)
|
||
|
|
{
|
||
|
|
$wildcard_match = true;
|
||
|
|
|
||
|
|
if ($type != 'image')
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Deal with Mozilla pjpeg/jpeg issue
|
||
|
|
if ($this->isBrowser('mozilla') && ($mimetype == 'image/pjpeg') && (strpos($this->accept, 'image/jpeg') !== false))
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$wildcard_match)
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$this->hasFeature('images') || ($type != 'image'))
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return (in_array($subtype, $this->images));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if the given browser is the same as the current.
|
||
|
|
*
|
||
|
|
* @param string $browser The browser to check.
|
||
|
|
*
|
||
|
|
* @return boolean Is the given browser the same as the current?
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function isBrowser($browser)
|
||
|
|
{
|
||
|
|
return ($this->browser === $browser);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines if the browser is a robot or not.
|
||
|
|
*
|
||
|
|
* @return boolean True if browser is a known robot.
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function isRobot()
|
||
|
|
{
|
||
|
|
foreach ($this->robots as $robot)
|
||
|
|
{
|
||
|
|
if (strpos($this->agent, $robot) !== false)
|
||
|
|
{
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determines if the browser is mobile version or not.
|
||
|
|
*
|
||
|
|
* @return boolean True if browser is a known mobile version.
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
*/
|
||
|
|
public function isMobile()
|
||
|
|
{
|
||
|
|
return $this->mobile;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Determine if we are using a secure (SSL) connection.
|
||
|
|
*
|
||
|
|
* @return boolean True if using SSL, false if not.
|
||
|
|
*
|
||
|
|
* @since 11.1
|
||
|
|
* @deprecated 13.3 (Platform) & 4.0 (CMS) - Use the isSSLConnection method on the application object.
|
||
|
|
*/
|
||
|
|
public function isSSLConnection()
|
||
|
|
{
|
||
|
|
JLog::add('JBrowser::isSSLConnection() is deprecated. Use the isSSLConnection method on the application object instead.',
|
||
|
|
JLog::WARNING, 'deprecated');
|
||
|
|
|
||
|
|
return ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] == 'on')) || getenv('SSL_PROTOCOL_VERSION'));
|
||
|
|
}
|
||
|
|
}
|