diff options
Diffstat (limited to 'system/libraries/User_agent.php')
-rw-r--r-- | system/libraries/User_agent.php | 502 |
1 files changed, 502 insertions, 0 deletions
diff --git a/system/libraries/User_agent.php b/system/libraries/User_agent.php new file mode 100644 index 000000000..180b93dea --- /dev/null +++ b/system/libraries/User_agent.php @@ -0,0 +1,502 @@ +<?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 */
\ No newline at end of file |