<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Http
* @subpackage UserAgent
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
require_once 'Zend/Http/UserAgent/Device.php';
/**
* Abstract Class to define a browser device.
*
* @category Zend
* @package Zend_Http
* @subpackage UserAgent
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
abstract class Zend_Http_UserAgent_AbstractDevice
implements Zend_Http_UserAgent_Device
{
/**
* Browser signature
*
* @var string
*/
protected $_browser = '';
/**
* Browser version
*
* @var string
*/
protected $_browserVersion = '';
/**
* Configuration
*
* @var array
*/
protected $_config;
/**
* User Agent chain
*
* @var string
*/
protected $_userAgent;
/**
* Server variable
*
* @var array
*/
protected $_server;
/**
* Image types
*
* @var array
*/
protected $_images = array(
'jpeg',
'gif',
'png',
'pjpeg',
'x-png',
'bmp',
);
/**
* Browser/Device features
*
* @var array
*/
protected $_aFeatures = array();
/**
* Browser/Device features groups
*
* @var array
*/
protected $_aGroup = array();
/**
* Constructor
*
* @param null|string|array $userAgent If array, restores from serialized version
* @param array $server
* @param array $config
* @return void
*/
public function __construct($userAgent = null, array $server = array(), array $config = array())
{
if (is_array($userAgent)) {
// Restoring from serialized array
$this->_restoreFromArray($userAgent);
} else {
// Constructing new object
$this->setUserAgent($userAgent);
$this->_server = $server;
$this->_config = $config;
$this->_getDefaultFeatures();
$this->_defineFeatures();
}
}
/**
* Serialize object
*
* @return string
*/
public function serialize()
{
$spec = array(
'_aFeatures' => $this->_aFeatures,
'_aGroup' => $this->_aGroup,
'_browser' => $this->_browser,
'_browserVersion' => $this->_browserVersion,
'_userAgent' => $this->_userAgent,
'_images' => $this->_images,
);
return serialize($spec);
}
/**
* Unserialize
*
* @param string $serialized
* @return void
*/
public function unserialize($serialized)
{
$spec = unserialize($serialized);
$this->_restoreFromArray($spec);
}
/**
* Restore object state from array
*
* @param array $spec
* @return void
*/
protected function _restoreFromArray(array $spec)
{
foreach ($spec as $key => $value) {
if (property_exists($this, $key)) {
$this->{$key} = $value;
}
}
}
/**
* Look for features
*
* @return array|null
*/
protected function _defineFeatures()
{
$features = $this->_loadFeaturesAdapter();
if (is_array($features)) {
$this->_aFeatures = array_merge($this->_aFeatures, $features);
}
return $this->_aFeatures;
}
/**
* Gets the browser type identifier
*
* @return string
*/
abstract public function getType();
/**
* Check a feature for the current browser/device.
*
* @param string $feature The feature to check.
* @return bool
*/
public function hasFeature($feature)
{
return (isset($this->_aFeatures[$feature]) && !is_null($this->_aFeatures[$feature]));
}
/**
* Gets the value of the current browser/device feature
*
* @param string $feature Feature to search
* @return string|null
*/
public function getFeature($feature)
{
if ($this->hasFeature($feature)) {
return $this->_aFeatures[$feature];
}
}
/**
* Set a feature for the current browser/device.
*
* @param string $feature The feature to set.
* @param string $value (option) feature value.
* @param string $group (option) Group to associate with the feature
* @return Zend_Http_UserAgent_AbstractDevice
*/
public function setFeature($feature, $value = false, $group = '')
{
$this->_aFeatures[$feature] = $value;
if (!empty($group)) {
$this->setGroup($group, $feature);
}
return $this;
}
/**
* Affects a feature to a group
*
* @param string $group Group name
* @param string $feature Feature name
* @return Zend_Http_UserAgent_AbstractDevice
*/
public function setGroup($group, $feature)
{
if (!isset($this->_aGroup[$group])) {
$this->_aGroup[$group] = array();
}
if (!in_array($feature, $this->_aGroup[$group])) {
$this->_aGroup[$group][] = $feature;
}
return $this;
}
/**
* Gets an array of features associated to a group
*
* @param string $group Group param
* @return array
*/
public function getGroup($group)
{
return $this->_aGroup[$group];
}
/**
* Gets all the browser/device features
*
* @return array
*/
public function getAllFeatures()
{
return $this->_aFeatures;
}
/**
* Gets all the browser/device features' groups
*
* @return array
*/
public function getAllGroups()
{
return $this->_aGroup;
}
/**
* Sets all the standard features extracted from the User Agent chain and $this->_server
* vars
*
* @return void
*/
protected function _getDefaultFeatures()
{
$server = array();
// gets info from user agent chain
$uaExtract = $this->extractFromUserAgent($this->getUserAgent());
if (is_array($uaExtract)) {
foreach ($uaExtract as $key => $info) {
$this->setFeature($key, $info, 'product_info');
}
}
if (isset($uaExtract['browser_name'])) {
$this->_browser = $uaExtract['browser_name'];
}
if (isset($uaExtract['browser_version'])) {
$this->_browserVersion = $uaExtract['browser_version'];
}
if (isset($uaExtract['device_os'])) {
$this->device_os = $uaExtract['device_os_name'];
}
/* browser & device info */
$this->setFeature('is_wireless_device', false, 'product_info');
$this->setFeature('is_mobile', false, 'product_info');
$this->setFeature('is_desktop', false, 'product_info');
$this->setFeature('is_tablet', false, 'product_info');
$this->setFeature('is_bot', false, 'product_info');
$this->setFeature('is_email', false, 'product_info');
$this->setFeature('is_text', false, 'product_info');
$this->setFeature('device_claims_web_support', false, 'product_info');
$this->setFeature('is_' . strtolower($this->getType()), true, 'product_info');
/* sets the browser name */
if (isset($this->list) && empty($this->_browser)) {
$lowerUserAgent = strtolower($this->getUserAgent());
foreach ($this->list as $browser_signature) {
if (strpos($lowerUserAgent, $browser_signature) !== false) {
$this->_browser = strtolower($browser_signature);
$this->setFeature('browser_name', $this->_browser, 'product_info');
}
}
}
/* sets the client IP */
if (isset($this->_server['remote_addr'])) {
$this->setFeature('client_ip', $this->_server['remote_addr'], 'product_info');
} elseif (isset($this->_server['http_x_forwarded_for'])) {
$this->setFeature('client_ip', $this->_server['http_x_forwarded_for'], 'product_info');
} elseif (isset($this->_server['http_client_ip'])) {
$this->setFeature('client_ip', $this->_server['http_client_ip'], 'product_info');
}
/* sets the server infos */
if (isset($this->_server['server_software'])) {
if (strpos($this->_server['server_software'], 'Apache') !== false || strpos($this->_server['server_software'], 'LiteSpeed') !== false) {
$server['version'] = 1;
if (strpos($this->_server['server_software'], 'Apache/2') !== false) {
$server['version'] = 2;
}
$server['server'] = 'apache';
}
if (strpos($this->_server['server_software'], 'Microsoft-IIS') !== false) {
$server['server'] = 'iis';
}
if (strpos($this->_server['server_software'], 'Unix') !== false) {
$server['os'] = 'unix';
if (isset($_ENV['MACHTYPE'])) {
if (strpos($_ENV['MACHTYPE'], 'linux') !== false) {
$server['os'] = 'linux';
}
}
} elseif (strpos($this->_server['server_software'], 'Win') !== false) {
$server['os'] = 'windows';
}
if (preg_match('/Apache\/([0-9\.]*)/', $this->_server['server_software'], $arr)) {
if ($arr[1]) {
$server['version'] = $arr[1];
$server['server'] = 'apache';
}
}
}
$this->setFeature('php_version', phpversion(), 'server_info');
if (isset($server['server'])) {
$this->setFeature('server_os', $server['server'], 'server_info');
}
if (isset($server['version'])) {
$this->setFeature('server_os_version', $server['version'], 'server_info');
}
if (isset($this->_server['http_accept'])) {
$this->setFeature('server_http_accept', $this->_server['http_accept'], 'server_info');
}
if (isset($this->_server['http_accept_language'])) {
$this->setFeature('server_http_accept_language', $this->_server['http_accept_language'], 'server_info');
}
if (isset($this->_server['server_addr'])) {
$this->setFeature('server_ip', $this->_server['server_addr'], 'server_info');
}
if (isset($this->_server['server_name'])) {
$this->setFeature('server_name', $this->_server['server_name'], 'server_info');
}
}
/**
* Extract and sets informations from the User Agent chain
*
* @param string $userAgent User Agent chain
* @return array
*/
public static function extractFromUserAgent($userAgent)
{
$userAgent = trim($userAgent);
/**
* @see http://www.texsoft.it/index.php?c=software&m=sw.php.useragent&l=it
*/
$pattern = "(([^/\s]*)(/(\S*))?)(\s*\[[a-zA-Z][a-zA-Z]\])?\s*(\\((([^()]|(\\([^()]*\\)))*)\\))?\s*";
preg_match("#^$pattern#", $userAgent, $match);
$comment = array();
if (isset($match[7])) {
$comment = explode(';', $match[7]);
}
// second part if exists
$end = substr($userAgent, strlen($match[0]));
if (!empty($end)) {
$result['others']['full'] = $end;
}
$match2 = array();
if (isset($result['others'])) {
preg_match_all('/(([^\/\s]*)(\/)?([^\/\(\)\s]*)?)(\s\((([^\)]*)*)\))?/i', $result['others']['full'], $match2);
}
$result['user_agent'] = trim($match[1]);
$result['product_name'] = isset($match[2]) ? trim($match[2]) : '';
$result['browser_name'] = $result['product_name'];
if (isset($match[4]) && trim($match[4])) {
$result['product_version'] = trim($match[4]);
$result['browser_version'] = trim($match[4]);
}
if (count($comment) && !empty($comment[0])) {
$result['comment']['full'] = trim($match[7]);
$result['comment']['detail'] = $comment;
$result['compatibility_flag'] = trim($comment[0]);
if (isset($comment[1])) {
$result['browser_token'] = trim($comment[1]);
}
if (isset($comment[2])) {
$result['device_os_token'] = trim($comment[2]);
}
}
if (empty($result['device_os_token']) && !empty($result['compatibility_flag'])) {
// some browsers do not have a platform token
$result['device_os_token'] = $result['compatibility_flag'];
}
if ($match2) {
$i = 0;
$max = count($match2[0]);
for ($i = 0; $i < $max; $i ++) {
if (!empty($match2[0][$i])) {
$result['others']['detail'][] = array(
$match2[0][$i],
$match2[2][$i],
$match2[4][$i],
);
}
}
}
/** Security level */
$security = array(
'N' => 'no security',
'U' => 'strong security',
'I' => 'weak security',
);
if (!empty($result['browser_token'])) {
if (isset($security[$result['browser_token']])) {
$result['security_level'] = $security[$result['browser_token']];
unset($result['browser_token']);
}
}
$product = strtolower($result['browser_name']);
// Mozilla : true && false
$compatibleOrIe = false;
if (isset($result['compatibility_flag']) && isset($result['comment'])) {
$compatibleOrIe = ($result['compatibility_flag'] == 'compatible' || strpos($result['comment']['full'], "MSIE") !== false);
}
if ($product == 'mozilla' && $compatibleOrIe) {
if (!empty($result['browser_token'])) {
// Classic Mozilla chain
preg_match_all('/([^\/\s].*)(\/|\s)(.*)/i', $result['browser_token'], $real);
} else {
// MSIE specific chain with 'Windows' compatibility flag
foreach ($result['comment']['detail'] as $v) {
if (strpos($v, 'MSIE') !== false) {
$real[0][1] = trim($v);
$result['browser_engine'] = "MSIE";
$real[1][0] = "Internet Explorer";
$temp = explode(' ', trim($v));
$real[3][0] = $temp[1];
}
if (strpos($v, 'Win') !== false) {
$result['device_os_token'] = trim($v);
}
}
}
if (!empty($real[0])) {
$result['browser_name'] = $real[1][0];
$result['browser_version'] = $real[3][0];
} else {
if(isset($result['browser_token'])) {
$result['browser_name'] = $result['browser_token'];
}
$result['browser_version'] = '??';
}
} elseif ($product == 'mozilla' && $result['browser_version'] < 5.0) {
// handles the real Mozilla (or old Netscape if version < 5.0)
$result['browser_name'] = 'Netscape';
}
/** windows */
if ($result['browser_name'] == 'MSIE') {
$result['browser_engine'] = 'MSIE';
$result['browser_name'] = 'Internet Explorer';
}
if (isset($result['device_os_token'])) {
if (strpos($result['device_os_token'], 'Win') !== false) {
$windows = array(
'Windows NT 6.1' => 'Windows 7',
'Windows NT 6.0' => 'Windows Vista',
'Windows NT 5.2' => 'Windows Server 2003',
'Windows NT 5.1' => 'Windows XP',
'Windows NT 5.01' => 'Windows 2000 SP1',
'Windows NT 5.0' => 'Windows 2000',
'Windows NT 4.0' => 'Microsoft Windows NT 4.0',
'WinNT' => 'Microsoft Windows NT 4.0',
'Windows 98; Win 9x 4.90' => 'Windows Me',
'Windows 98' => 'Windows 98',
'Win98' => 'Windows 98',
'Windows 95' => 'Windows 95',
'Win95' => 'Windows 95',
'Windows CE' => 'Windows CE',
);
if (isset($windows[$result['device_os_token']])) {
$result['device_os_name'] = $windows[$result['device_os_token']];
} else {
$result['device_os_name'] = $result['device_os_token'];
}
}
}
// iphone
$apple_device = array(
'iPhone',
'iPod',
'iPad',
);
if (isset($result['compatibility_flag'])) {
if (in_array($result['compatibility_flag'], $apple_device)) {
$result['device'] = strtolower($result['compatibility_flag']);
$result['device_os_token'] = 'iPhone OS';
if (isset($comment[3])) {
$result['browser_language'] = trim($comment[3]);
}
if (isset($result['others']['detail'][1])) {
$result['browser_version'] = $result['others']['detail'][1][2];
} elseif (isset($result['others']['detail']) && count($result['others']['detail'])) {
$result['browser_version'] = $result['others']['detail'][0][2];
}
if (!empty($result['others']['detail'][2])) {
$result['firmware'] = $result['others']['detail'][2][2];
}
if (!empty($result['others']['detail'][3])) {
$result['browser_name'] = $result['others']['detail'][3][1];
$result['browser_build'] = $result['others']['detail'][3][2];
}
}
}
// Safari
if (isset($result['others'])) {
if ($result['others']['detail'][0][1] == 'AppleWebKit') {
$result['browser_engine'] = 'AppleWebKit';
if (isset($result['others']['detail'][1]) && $result['others']['detail'][1][1] == 'Version') {
$result['browser_version'] = $result['others']['detail'][1][2];
} else {
$result['browser_version'] = $result['others']['detail'][count($result['others']['detail']) - 1][2];
}
if (isset($comment[3])) {
$result['browser_language'] = trim($comment[3]);
}
$last = $result['others']['detail'][count($result['others']['detail']) - 1][1];
if (empty($result['others']['detail'][2][1]) || $result['others']['detail'][2][1] == 'Safari') {
if (isset($result['others']['detail'][1])) {
$result['browser_name'] = ($result['others']['detail'][1][1] && $result['others']['detail'][1][1] != 'Version' ? $result['others']['detail'][1][1] : 'Safari');
$result['browser_version'] = ($result['others']['detail'][1][2] ? $result['others']['detail'][1][2] : $result['others']['detail'][0][2]);
} else {
$result['browser_name'] = ($result['others']['detail'][0][1] && $result['others']['detail'][0][1] != 'Version' ? $result['others']['detail'][0][1] : 'Safari');
$result['browser_version'] = $result['others']['detail'][0][2];
}
} else {
$result['browser_name'] = $result['others']['detail'][2][1];
$result['browser_version'] = $result['others']['detail'][2][2];
// mobile version
if ($result['browser_name'] == 'Mobile') {
$result['browser_name'] = 'Safari ' . $result['browser_name'];
if ($result['others']['detail'][1][1] == 'Version') {
$result['browser_version'] = $result['others']['detail'][1][2];
}
}
}
// For Safari < 2.2, AppleWebKit version gives the Safari version
if (strpos($result['browser_version'], '.') > 2 || (int) $result['browser_version'] > 20) {
$temp = explode('.', $result['browser_version']);
$build = (int) $temp[0];
$awkVersion = array(
48 => '0.8',
73 => '0.9',
85 => '1.0',
103 => '1.1',
124 => '1.2',
300 => '1.3',
400 => '2.0',
);
foreach ($awkVersion as $k => $v) {
if ($build >= $k) {
$result['browser_version'] = $v;
}
}
}
}
// Gecko (Firefox or compatible)
if ($result['others']['detail'][0][1] == 'Gecko') {
$searchRV = true;
if (!empty($result['others']['detail'][1][1]) && !empty($result['others']['detail'][count($result['others']['detail']) - 1][2]) || strpos(strtolower($result['others']['full']), 'opera') !== false) {
$searchRV = false;
$result['browser_engine'] = $result['others']['detail'][0][1];
// the name of the application is at the end indepenently
// of quantity of information in $result['others']['detail']
$last = count($result['others']['detail']) - 1;
// exception : if the version of the last information is
// empty we take the previous one
if (empty($result['others']['detail'][$last][2])) {
$last --;
}
// exception : if the last one is 'Red Hat' or 'Debian' =>
// use rv: to find browser_version */
if (in_array($result['others']['detail'][$last][1], array(
'Debian',
'Hat',
))) {
$searchRV = true;
}
$result['browser_name'] = $result['others']['detail'][$last][1];
$result['browser_version'] = $result['others']['detail'][$last][2];
if (isset($comment[4])) {
$result['browser_build'] = trim($comment[4]);
}
if (isset($comment[3])) {
$result['browser_language'] = trim($comment[3]);
}
// Netscape
if ($result['browser_name'] == 'Navigator' || $result['browser_name'] == 'Netscape6') {
$result['browser_name'] = 'Netscape';
}
}
if ($searchRV) {
// Mozilla alone : the version is identified by rv:
$result['browser_name'] = 'Mozilla';
if (isset($result['comment']['detail'])) {
foreach ($result['comment']['detail'] as $rv) {
if (strpos($rv, 'rv:') !== false) {
$result['browser_version'] = trim(str_replace('rv:', '', $rv));
}
}
}
}
}
// Netscape
if ($result['others']['detail'][0][1] == 'Netscape') {
$result['browser_name'] = 'Netscape';
$result['browser_version'] = $result['others']['detail'][0][2];
}
// Opera
// Opera: engine Presto
if ($result['others']['detail'][0][1] == 'Presto') {
$result['browser_engine'] = 'Presto';
if (!empty($result['others']['detail'][1][2])) {
$result['browser_version'] = $result['others']['detail'][1][2];
}
}
// UA ends with 'Opera X.XX' or 'Opera/X.XX'
if ($result['others']['detail'][0][1] == 'Opera') {
$result['browser_name'] = $result['others']['detail'][0][1];
// Opera X.XX
if (isset($result['others']['detail'][1][1])) {
$result['browser_version'] = $result['others']['detail'][1][1];
// Opera/X.XX
} elseif (isset($result['others']['detail'][0][2])) {
$result['browser_version'] = $result['others']['detail'][0][2];
}
}
// Opera Mini
if (isset($result["browser_token"])) {
if (strpos($result["browser_token"], 'Opera Mini') !== false) {
$result['browser_name'] = 'Opera Mini';
}
}
// Symbian
if ($result['others']['detail'][0][1] == 'SymbianOS') {
$result['device_os_token'] = 'SymbianOS';
}
}
// UA ends with 'Opera X.XX'
if (isset($result['browser_name']) && isset($result['browser_engine'])) {
if ($result['browser_name'] == 'Opera' && $result['browser_engine'] == 'Gecko' && empty($result['browser_version'])) {
$result['browser_version'] = $result['others']['detail'][count($result['others']['detail']) - 1][1];
}
}
// cleanup
if (isset($result['browser_version']) && isset($result['browser_build'])) {
if ($result['browser_version'] == $result['browser_build']) {
unset($result['browser_build']);
}
}
// compatibility
$compatibility['AppleWebKit'] = 'Safari';
$compatibility['Gecko'] = 'Firefox';
$compatibility['MSIE'] = 'Internet Explorer';
$compatibility['Presto'] = 'Opera';
if (!empty($result['browser_engine'])) {
if (isset($compatibility[$result['browser_engine']])) {
$result['browser_compatibility'] = $compatibility[$result['browser_engine']];
}
}
ksort($result);
return $result;
}
/**
* Loads the Features Adapter if it's defined in the $config array
* Otherwise, nothing is done
*
* @param string $browserType Browser type
* @return array
*/
protected function _loadFeaturesAdapter()
{
$config = $this->_config;
$browserType = $this->getType();
if (!isset($config[$browserType]) || !isset($config[$browserType]['features'])) {
return array();
}
$config = $config[$browserType]['features'];
if (empty($config['classname'])) {
require_once 'Zend/Http/UserAgent/Exception.php';
throw new Zend_Http_UserAgent_Exception('The ' . $this->getType() . ' features adapter must have a "classname" config parameter defined');
}
$className = $config['classname'];
if (!class_exists($className)) {
if (isset($config['path'])) {
$path = $config['path'];
} else {
require_once 'Zend/Http/UserAgent/Exception.php';
throw new Zend_Http_UserAgent_Exception('The ' . $this->getType() . ' features adapter must have a "path" config parameter defined');
}
if (false === include_once ($path)) {
require_once 'Zend/Http/UserAgent/Exception.php';
throw new Zend_Http_UserAgent_Exception('The ' . $this->getType() . ' features adapter path that does not exist');
}
}
return call_user_func(array($className, 'getFromRequest'), $this->_server, $this->_config);
}
/**
* Retrieve image format support
*
* @return array
*/
public function getImageFormatSupport()
{
return $this->_images;
}
/**
* Get maximum image height supported by this device
*
* @return int
*/
public function getMaxImageHeight()
{
return null;
}
/**
* Get maximum image width supported by this device
*
* @return int
*/
public function getMaxImageWidth()
{
return null;
}
/**
* Get physical screen height of this device
*
* @return int
*/
public function getPhysicalScreenHeight()
{
return null;
}
/**
* Get physical screen width of this device
*
* @return int
*/
public function getPhysicalScreenWidth()
{
return null;
}
/**
* Get preferred markup type
*
* @return string
*/
public function getPreferredMarkup()
{
return 'xhtml';
}
/**
* Get supported X/HTML version
*
* @return int
*/
public function getXhtmlSupportLevel()
{
return 4;
}
/**
* Does the device support Flash?
*
* @return bool
*/
public function hasFlashSupport()
{
return true;
}
/**
* Does the device support PDF?
*
* @return bool
*/
public function hasPdfSupport()
{
return true;
}
/**
* Does the device have a phone number associated with it?
*
* @return bool
*/
public function hasPhoneNumber()
{
return false;
}
/**
* Does the device support HTTPS?
*
* @return bool
*/
public function httpsSupport()
{
return true;
}
/**
* Get the browser type
*
* @return string
*/
public function getBrowser()
{
return $this->_browser;
}
/**
* Get the browser version
*
* @return string
*/
public function getBrowserVersion()
{
return $this->_browserVersion;
}
/**
* Get the user agent string
*
* @return string
*/
public function getUserAgent()
{
return $this->_userAgent;
}
/**
* @return the $_images
*/
public function getImages()
{
return $this->_images;
}
/**
* @param string $browser
*/
public function setBrowser($browser)
{
$this->_browser = $browser;
}
/**
* @param string $browserVersion
*/
public function setBrowserVersion($browserVersion)
{
$this->_browserVersion = $browserVersion;
}
/**
* @param string $userAgent
*/
public function setUserAgent($userAgent)
{
$this->_userAgent = $userAgent;
return $this;
}
/**
* @param array $_images
*/
public function setImages($_images)
{
$this->_images = $_images;
}
/**
* Match a user agent string against a list of signatures
*
* @param string $userAgent
* @param array $signatures
* @return bool
*/
protected static function _matchAgentAgainstSignatures($userAgent, $signatures)
{
$userAgent = strtolower($userAgent);
foreach ($signatures as $signature) {
if (!empty($signature)) {
if (strpos($userAgent, $signature) !== false) {
// Browser signature was found in user agent string
return true;
}
}
}
return false;
}
}