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549 lines
10 KiB
549 lines
10 KiB
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); |
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/** |
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* CodeIgniter |
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* |
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* An open source application development framework for PHP 5.1.6 or newer |
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* |
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* @package CodeIgniter |
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* @author ExpressionEngine Dev Team |
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* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. |
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* @license http://codeigniter.com/user_guide/license.html |
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* @link http://codeigniter.com |
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* @since Version 1.0 |
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* @filesource |
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*/ |
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// ------------------------------------------------------------------------ |
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/** |
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* User Agent Class |
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* |
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* Identifies the platform, browser, robot, or mobile devise of the browsing agent |
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* |
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* @package CodeIgniter |
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* @subpackage Libraries |
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* @category User Agent |
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* @author ExpressionEngine Dev Team |
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* @link http://codeigniter.com/user_guide/libraries/user_agent.html |
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*/ |
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class CI_User_agent { |
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var $agent = NULL; |
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var $is_browser = FALSE; |
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var $is_robot = FALSE; |
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var $is_mobile = FALSE; |
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var $languages = array(); |
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var $charsets = array(); |
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var $platforms = array(); |
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var $browsers = array(); |
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var $mobiles = array(); |
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var $robots = array(); |
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var $platform = ''; |
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var $browser = ''; |
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var $version = ''; |
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var $mobile = ''; |
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var $robot = ''; |
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/** |
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* Constructor |
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* |
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* Sets the User Agent and runs the compilation routine |
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* |
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* @access public |
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* @return void |
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*/ |
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public function __construct() |
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{ |
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if (isset($_SERVER['HTTP_USER_AGENT'])) |
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{ |
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$this->agent = trim($_SERVER['HTTP_USER_AGENT']); |
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} |
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if ( ! is_null($this->agent)) |
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{ |
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if ($this->_load_agent_file()) |
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{ |
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$this->_compile_data(); |
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} |
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} |
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log_message('debug', "User Agent Class Initialized"); |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Compile the User Agent Data |
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* |
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* @access private |
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* @return bool |
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*/ |
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private function _load_agent_file() |
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{ |
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if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/user_agents.php')) |
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{ |
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include(APPPATH.'config/'.ENVIRONMENT.'/user_agents.php'); |
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} |
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elseif (is_file(APPPATH.'config/user_agents.php')) |
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{ |
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include(APPPATH.'config/user_agents.php'); |
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} |
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else |
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{ |
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return FALSE; |
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} |
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$return = FALSE; |
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if (isset($platforms)) |
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{ |
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$this->platforms = $platforms; |
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unset($platforms); |
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$return = TRUE; |
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} |
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if (isset($browsers)) |
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{ |
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$this->browsers = $browsers; |
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unset($browsers); |
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$return = TRUE; |
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} |
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if (isset($mobiles)) |
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{ |
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$this->mobiles = $mobiles; |
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unset($mobiles); |
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$return = TRUE; |
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} |
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if (isset($robots)) |
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{ |
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$this->robots = $robots; |
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unset($robots); |
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$return = TRUE; |
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} |
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return $return; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Compile the User Agent Data |
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* |
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* @access private |
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* @return bool |
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*/ |
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private function _compile_data() |
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{ |
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$this->_set_platform(); |
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foreach (array('_set_robot', '_set_browser', '_set_mobile') as $function) |
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{ |
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if ($this->$function() === TRUE) |
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{ |
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break; |
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} |
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} |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Set the Platform |
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* |
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* @access private |
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* @return mixed |
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*/ |
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private function _set_platform() |
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{ |
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if (is_array($this->platforms) AND count($this->platforms) > 0) |
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{ |
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foreach ($this->platforms as $key => $val) |
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{ |
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if (preg_match("|".preg_quote($key)."|i", $this->agent)) |
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{ |
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$this->platform = $val; |
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return TRUE; |
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} |
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} |
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} |
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$this->platform = 'Unknown Platform'; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Set the Browser |
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* |
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* @access private |
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* @return bool |
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*/ |
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private function _set_browser() |
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{ |
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if (is_array($this->browsers) AND count($this->browsers) > 0) |
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{ |
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foreach ($this->browsers as $key => $val) |
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{ |
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if (preg_match("|".preg_quote($key).".*?([0-9\.]+)|i", $this->agent, $match)) |
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{ |
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$this->is_browser = TRUE; |
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$this->version = $match[1]; |
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$this->browser = $val; |
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$this->_set_mobile(); |
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return TRUE; |
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} |
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} |
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} |
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return FALSE; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Set the Robot |
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* |
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* @access private |
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* @return bool |
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*/ |
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private function _set_robot() |
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{ |
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if (is_array($this->robots) AND count($this->robots) > 0) |
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{ |
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foreach ($this->robots as $key => $val) |
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{ |
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if (preg_match("|".preg_quote($key)."|i", $this->agent)) |
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{ |
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$this->is_robot = TRUE; |
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$this->robot = $val; |
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return TRUE; |
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} |
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} |
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} |
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return FALSE; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Set the Mobile Device |
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* |
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* @access private |
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* @return bool |
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*/ |
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private function _set_mobile() |
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{ |
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if (is_array($this->mobiles) AND count($this->mobiles) > 0) |
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{ |
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foreach ($this->mobiles as $key => $val) |
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{ |
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if (FALSE !== (strpos(strtolower($this->agent), $key))) |
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{ |
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$this->is_mobile = TRUE; |
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$this->mobile = $val; |
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return TRUE; |
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} |
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} |
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} |
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return FALSE; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Set the accepted languages |
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* |
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* @access private |
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* @return void |
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*/ |
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private function _set_languages() |
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{ |
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if ((count($this->languages) == 0) AND isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) AND $_SERVER['HTTP_ACCEPT_LANGUAGE'] != '') |
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{ |
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$languages = preg_replace('/(;q=[0-9\.]+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_LANGUAGE']))); |
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$this->languages = explode(',', $languages); |
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} |
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if (count($this->languages) == 0) |
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{ |
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$this->languages = array('Undefined'); |
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} |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Set the accepted character sets |
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* |
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* @access private |
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* @return void |
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*/ |
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private function _set_charsets() |
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{ |
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if ((count($this->charsets) == 0) AND isset($_SERVER['HTTP_ACCEPT_CHARSET']) AND $_SERVER['HTTP_ACCEPT_CHARSET'] != '') |
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{ |
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$charsets = preg_replace('/(;q=.+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_CHARSET']))); |
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$this->charsets = explode(',', $charsets); |
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} |
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if (count($this->charsets) == 0) |
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{ |
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$this->charsets = array('Undefined'); |
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} |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Is Browser |
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* |
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* @access public |
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* @return bool |
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*/ |
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public function is_browser($key = NULL) |
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{ |
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if ( ! $this->is_browser) |
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{ |
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return FALSE; |
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} |
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// No need to be specific, it's a browser |
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if ($key === NULL) |
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{ |
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return TRUE; |
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} |
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// Check for a specific browser |
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return array_key_exists($key, $this->browsers) AND $this->browser === $this->browsers[$key]; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Is Robot |
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* |
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* @access public |
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* @return bool |
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*/ |
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public function is_robot($key = NULL) |
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{ |
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if ( ! $this->is_robot) |
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{ |
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return FALSE; |
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} |
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// No need to be specific, it's a robot |
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if ($key === NULL) |
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{ |
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return TRUE; |
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} |
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// Check for a specific robot |
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return array_key_exists($key, $this->robots) AND $this->robot === $this->robots[$key]; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Is Mobile |
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* |
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* @access public |
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* @return bool |
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*/ |
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public function is_mobile($key = NULL) |
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{ |
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if ( ! $this->is_mobile) |
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{ |
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return FALSE; |
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} |
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// No need to be specific, it's a mobile |
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if ($key === NULL) |
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{ |
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return TRUE; |
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} |
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// Check for a specific robot |
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return array_key_exists($key, $this->mobiles) AND $this->mobile === $this->mobiles[$key]; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Is this a referral from another site? |
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* |
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* @access public |
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* @return bool |
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*/ |
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public function is_referral() |
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{ |
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if ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '') |
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{ |
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return FALSE; |
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} |
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return TRUE; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Agent String |
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* |
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* @access public |
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* @return string |
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*/ |
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public function agent_string() |
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{ |
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return $this->agent; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Get Platform |
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* |
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* @access public |
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* @return string |
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*/ |
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public function platform() |
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{ |
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return $this->platform; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Get Browser Name |
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* |
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* @access public |
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* @return string |
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*/ |
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public function browser() |
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{ |
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return $this->browser; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Get the Browser Version |
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* |
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* @access public |
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* @return string |
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*/ |
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public function version() |
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{ |
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return $this->version; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Get The Robot Name |
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* |
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* @access public |
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* @return string |
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*/ |
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public function robot() |
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{ |
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return $this->robot; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Get the Mobile Device |
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* |
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* @access public |
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* @return string |
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*/ |
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public function mobile() |
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{ |
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return $this->mobile; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Get the referrer |
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* |
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* @access public |
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* @return bool |
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*/ |
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public function referrer() |
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{ |
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return ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '') ? '' : trim($_SERVER['HTTP_REFERER']); |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Get the accepted languages |
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* |
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* @access public |
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* @return array |
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*/ |
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public function languages() |
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{ |
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if (count($this->languages) == 0) |
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{ |
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$this->_set_languages(); |
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} |
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return $this->languages; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Get the accepted Character Sets |
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* |
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* @access public |
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* @return array |
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*/ |
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public function charsets() |
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{ |
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if (count($this->charsets) == 0) |
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{ |
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$this->_set_charsets(); |
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} |
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return $this->charsets; |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Test for a particular language |
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* |
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* @access public |
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* @return bool |
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*/ |
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public function accept_lang($lang = 'en') |
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{ |
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return (in_array(strtolower($lang), $this->languages(), TRUE)); |
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} |
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// -------------------------------------------------------------------- |
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/** |
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* Test for a particular character set |
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* |
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* @access public |
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* @return bool |
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*/ |
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public function accept_charset($charset = 'utf-8') |
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{ |
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return (in_array(strtolower($charset), $this->charsets(), TRUE)); |
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} |
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} |
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/* End of file User_agent.php */ |
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/* Location: ./system/libraries/User_agent.php */ |