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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 4.3.2 or newer
*
* @package CodeIgniter
* @author ExpressionEngine Dev Team
* @copyright Copyright (c) 2008 - 2009, EllisLab, Inc.
* @license http://codeigniter.com/user_guide/license.html
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* User Agent Class
*
* Identifies the platform, browser, robot, or mobile devise of the browsing agent
*
* @package CodeIgniter
* @subpackage Libraries
* @category User Agent
* @author ExpressionEngine Dev Team
* @link http://codeigniter.com/user_guide/libraries/user_agent.html
*/
class CI_User_agent {
var $agent = NULL;
var $is_browser = FALSE;
var $is_robot = FALSE;
var $is_mobile = FALSE;
var $languages = array();
var $charsets = array();
var $platforms = array();
var $browsers = array();
var $mobiles = array();
var $robots = array();
var $platform = '';
var $browser = '';
var $version = '';
var $mobile = '';
var $robot = '';
/**
* Constructor
*
* Sets the User Agent and runs the compilation routine
*
* @access public
* @return void
*/
function CI_User_agent()
{
if (isset($_SERVER['HTTP_USER_AGENT']))
{
$this->agent = trim($_SERVER['HTTP_USER_AGENT']);
}
if ( ! is_null($this->agent))
{
if ($this->_load_agent_file())
{
$this->_compile_data();
}
}
log_message('debug', "User Agent Class Initialized");
}
// --------------------------------------------------------------------
/**
* Compile the User Agent Data
*
* @access private
* @return bool
*/
function _load_agent_file()
{
if ( ! @include(APPPATH.'config/user_agents'.EXT))
{
return FALSE;
}
$return = FALSE;
if (isset($platforms))
{
$this->platforms = $platforms;
unset($platforms);
$return = TRUE;
}
if (isset($browsers))
{
$this->browsers = $browsers;
unset($browsers);
$return = TRUE;
}
if (isset($mobiles))
{
$this->mobiles = $mobiles;
unset($mobiles);
$return = TRUE;
}
if (isset($robots))
{
$this->robots = $robots;
unset($robots);
$return = TRUE;
}
return $return;
}
// --------------------------------------------------------------------
/**
* Compile the User Agent Data
*
* @access private
* @return bool
*/
function _compile_data()
{
$this->_set_platform();
foreach (array('_set_browser', '_set_robot', '_set_mobile') as $function)
{
if ($this->$function() === TRUE)
{
break;
}
}
}
// --------------------------------------------------------------------
/**
* Set the Platform
*
* @access private
* @return mixed
*/
function _set_platform()
{
if (is_array($this->platforms) AND count($this->platforms) > 0)
{
foreach ($this->platforms as $key => $val)
{
if (preg_match("|".preg_quote($key)."|i", $this->agent))
{
$this->platform = $val;
return TRUE;
}
}
}
$this->platform = 'Unknown Platform';
}
// --------------------------------------------------------------------
/**
* Set the Browser
*
* @access private
* @return bool
*/
function _set_browser()
{
if (is_array($this->browsers) AND count($this->browsers) > 0)
{
foreach ($this->browsers as $key => $val)
{
if (preg_match("|".preg_quote($key).".*?([0-9\.]+)|i", $this->agent, $match))
{
$this->is_browser = TRUE;
$this->version = $match[1];
$this->browser = $val;
$this->_set_mobile();
return TRUE;
}
}
}
return FALSE;
}
// --------------------------------------------------------------------
/**
* Set the Robot
*
* @access private
* @return bool
*/
function _set_robot()
{
if (is_array($this->robots) AND count($this->robots) > 0)
{
foreach ($this->robots as $key => $val)
{
if (preg_match("|".preg_quote($key)."|i", $this->agent))
{
$this->is_robot = TRUE;
$this->robot = $val;
return TRUE;
}
}
}
return FALSE;
}
// --------------------------------------------------------------------
/**
* Set the Mobile Device
*
* @access private
* @return bool
*/
function _set_mobile()
{
if (is_array($this->mobiles) AND count($this->mobiles) > 0)
{
foreach ($this->mobiles as $key => $val)
{
if (FALSE !== (strpos(strtolower($this->agent), $key)))
{
$this->is_mobile = TRUE;
$this->mobile = $val;
return TRUE;
}
}
}
return FALSE;
}
// --------------------------------------------------------------------
/**
* Set the accepted languages
*
* @access private
* @return void
*/
function _set_languages()
{
if ((count($this->languages) == 0) AND isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) AND $_SERVER['HTTP_ACCEPT_LANGUAGE'] != '')
{
$languages = preg_replace('/(;q=[0-9\.]+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_LANGUAGE'])));
$this->languages = explode(',', $languages);
}
if (count($this->languages) == 0)
{
$this->languages = array('Undefined');
}
}
// --------------------------------------------------------------------
/**
* Set the accepted character sets
*
* @access private
* @return void
*/
function _set_charsets()
{
if ((count($this->charsets) == 0) AND isset($_SERVER['HTTP_ACCEPT_CHARSET']) AND $_SERVER['HTTP_ACCEPT_CHARSET'] != '')
{
$charsets = preg_replace('/(;q=.+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_CHARSET'])));
$this->charsets = explode(',', $charsets);
}
if (count($this->charsets) == 0)
{
$this->charsets = array('Undefined');
}
}
// --------------------------------------------------------------------
/**
* Is Browser
*
* @access public
* @return bool
*/
function is_browser()
{
return $this->is_browser;
}
// --------------------------------------------------------------------
/**
* Is Robot
*
* @access public
* @return bool
*/
function is_robot()
{
return $this->is_robot;
}
// --------------------------------------------------------------------
/**
* Is Mobile
*
* @access public
* @return bool
*/
function is_mobile()
{
return $this->is_mobile;
}
// --------------------------------------------------------------------
/**
* Is this a referral from another site?
*
* @access public
* @return bool
*/
function is_referral()
{
return ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '') ? FALSE : TRUE;
}
// --------------------------------------------------------------------
/**
* Agent String
*
* @access public
* @return string
*/
function agent_string()
{
return $this->agent;
}
// --------------------------------------------------------------------
/**
* Get Platform
*
* @access public
* @return string
*/
function platform()
{
return $this->platform;
}
// --------------------------------------------------------------------
/**
* Get Browser Name
*
* @access public
* @return string
*/
function browser()
{
return $this->browser;
}
// --------------------------------------------------------------------
/**
* Get the Browser Version
*
* @access public
* @return string
*/
function version()
{
return $this->version;
}
// --------------------------------------------------------------------
/**
* Get The Robot Name
*
* @access public
* @return string
*/
function robot()
{
return $this->robot;
}
// --------------------------------------------------------------------
/**
* Get the Mobile Device
*
* @access public
* @return string
*/
function mobile()
{
return $this->mobile;
}
// --------------------------------------------------------------------
/**
* Get the referrer
*
* @access public
* @return bool
*/
function referrer()
{
return ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '') ? '' : trim($_SERVER['HTTP_REFERER']);
}
// --------------------------------------------------------------------
/**
* Get the accepted languages
*
* @access public
* @return array
*/
function languages()
{
if (count($this->languages) == 0)
{
$this->_set_languages();
}
return $this->languages;
}
// --------------------------------------------------------------------
/**
* Get the accepted Character Sets
*
* @access public
* @return array
*/
function charsets()
{
if (count($this->charsets) == 0)
{
$this->_set_charsets();
}
return $this->charsets;
}
// --------------------------------------------------------------------
/**
* Test for a particular language
*
* @access public
* @return bool
*/
function accept_lang($lang = 'en')
{
return (in_array(strtolower($lang), $this->languages(), TRUE)) ? TRUE : FALSE;
}
// --------------------------------------------------------------------
/**
* Test for a particular character set
*
* @access public
* @return bool
*/
function accept_charset($charset = 'utf-8')
{
return (in_array(strtolower($charset), $this->charsets(), TRUE)) ? TRUE : FALSE;
}
}
/* End of file User_agent.php */
/* Location: ./system/libraries/User_agent.php */