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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, 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"); |
} |
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// -------------------------------------------------------------------- |
|
/** |
* 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); |
$return = TRUE; |
} |
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if (isset($mobiles)) |
{ |
$this->mobiles = $mobiles; |
unset($mobiles); |
$return = TRUE; |
} |
|
if (isset($robots)) |
{ |
$this->robots = $robots; |
unset($robots); |
$return = TRUE; |
} |
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return $return; |
} |
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// -------------------------------------------------------------------- |
|
/** |
* 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']))); |
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$this->languages = explode(',', $languages); |
} |
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if (count($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']))); |
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$this->charsets = explode(',', $charsets); |
} |
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if (count($this->charsets) == 0) |
{ |
$this->charsets = array('Undefined'); |
} |
} |
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// -------------------------------------------------------------------- |
|
/** |
* 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; |
} |
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// -------------------------------------------------------------------- |
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/** |
* Get Platform |
* |
* @access public |
* @return string |
*/ |
function platform() |
{ |
return $this->platform; |
} |
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// -------------------------------------------------------------------- |
|
/** |
* Get Browser Name |
* |
* @access public |
* @return string |
*/ |
function browser() |
{ |
return $this->browser; |
} |
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// -------------------------------------------------------------------- |
|
/** |
* Get the Browser Version |
* |
* @access public |
* @return string |
*/ |
function version() |
{ |
return $this->version; |
} |
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// -------------------------------------------------------------------- |
|
/** |
* Get The Robot Name |
* |
* @access public |
* @return string |
*/ |
function robot() |
{ |
return $this->robot; |
} |
// -------------------------------------------------------------------- |
|
/** |
* Get the Mobile Device |
* |
* @access public |
* @return string |
*/ |
function mobile() |
{ |
return $this->mobile; |
} |
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// -------------------------------------------------------------------- |
|
/** |
* Get the referrer |
* |
* @access public |
* @return bool |
*/ |
function referrer() |
{ |
return ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '') ? '' : trim($_SERVER['HTTP_REFERER']); |
} |
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// -------------------------------------------------------------------- |
|
/** |
* Get the accepted languages |
* |
* @access public |
* @return array |
*/ |
function languages() |
{ |
if (count($this->languages) == 0) |
{ |
$this->_set_languages(); |
} |
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return $this->languages; |
} |
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// -------------------------------------------------------------------- |
|
/** |
* Get the accepted Character Sets |
* |
* @access public |
* @return array |
*/ |
function charsets() |
{ |
if (count($this->charsets) == 0) |
{ |
$this->_set_charsets(); |
} |
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return $this->charsets; |
} |
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// -------------------------------------------------------------------- |
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/** |
* Test for a particular language |
* |
* @access public |
* @return bool |
*/ |
function accept_lang($lang = 'en') |
{ |
return (in_array(strtolower($lang), $this->languages(), TRUE)) ? TRUE : FALSE; |
} |
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// -------------------------------------------------------------------- |
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/** |
* Test for a particular character set |
* |
* @access public |
* @return bool |
*/ |
function accept_charset($charset = 'utf-8') |
{ |
return (in_array(strtolower($charset), $this->charsets(), TRUE)) ? TRUE : FALSE; |
} |
|
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} |
|
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/* End of file User_agent.php */ |
/* Location: ./system/libraries/User_agent.php */ |