[289] | 1 | <?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); |
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| 2 | /** |
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| 3 | * CodeIgniter |
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| 4 | * |
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| 5 | * An open source application development framework for PHP 5.1.6 or newer |
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| 6 | * |
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| 7 | * @package CodeIgniter |
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| 8 | * @author ExpressionEngine Dev Team |
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| 9 | * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. |
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| 10 | * @license http://codeigniter.com/user_guide/license.html |
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| 11 | * @link http://codeigniter.com |
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| 12 | * @since Version 1.0 |
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| 13 | * @filesource |
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| 14 | */ |
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| 15 | |
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| 16 | // ------------------------------------------------------------------------ |
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| 17 | |
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| 18 | /** |
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| 19 | * User Agent Class |
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| 20 | * |
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| 21 | * Identifies the platform, browser, robot, or mobile devise of the browsing agent |
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| 22 | * |
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| 23 | * @package CodeIgniter |
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| 24 | * @subpackage Libraries |
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| 25 | * @category User Agent |
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| 26 | * @author ExpressionEngine Dev Team |
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| 27 | * @link http://codeigniter.com/user_guide/libraries/user_agent.html |
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| 28 | */ |
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| 29 | class CI_User_agent { |
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| 30 | |
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| 31 | var $agent = NULL; |
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| 32 | |
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| 33 | var $is_browser = FALSE; |
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| 34 | var $is_robot = FALSE; |
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| 35 | var $is_mobile = FALSE; |
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| 36 | |
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| 37 | var $languages = array(); |
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| 38 | var $charsets = array(); |
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| 39 | |
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| 40 | var $platforms = array(); |
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| 41 | var $browsers = array(); |
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| 42 | var $mobiles = array(); |
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| 43 | var $robots = array(); |
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| 44 | |
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| 45 | var $platform = ''; |
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| 46 | var $browser = ''; |
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| 47 | var $version = ''; |
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| 48 | var $mobile = ''; |
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| 49 | var $robot = ''; |
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| 50 | |
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| 51 | /** |
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| 52 | * Constructor |
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| 53 | * |
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| 54 | * Sets the User Agent and runs the compilation routine |
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| 55 | * |
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| 56 | * @access public |
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| 57 | * @return void |
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| 58 | */ |
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| 59 | public function __construct() |
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| 60 | { |
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| 61 | if (isset($_SERVER['HTTP_USER_AGENT'])) |
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| 62 | { |
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| 63 | $this->agent = trim($_SERVER['HTTP_USER_AGENT']); |
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| 64 | } |
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| 65 | |
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| 66 | if ( ! is_null($this->agent)) |
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| 67 | { |
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| 68 | if ($this->_load_agent_file()) |
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| 69 | { |
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| 70 | $this->_compile_data(); |
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| 71 | } |
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| 72 | } |
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| 73 | |
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| 74 | log_message('debug', "User Agent Class Initialized"); |
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| 75 | } |
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| 76 | |
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| 77 | // -------------------------------------------------------------------- |
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| 78 | |
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| 79 | /** |
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| 80 | * Compile the User Agent Data |
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| 81 | * |
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| 82 | * @access private |
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| 83 | * @return bool |
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| 84 | */ |
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| 85 | private function _load_agent_file() |
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| 86 | { |
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| 87 | if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/user_agents.php')) |
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| 88 | { |
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| 89 | include(APPPATH.'config/'.ENVIRONMENT.'/user_agents.php'); |
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| 90 | } |
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| 91 | elseif (is_file(APPPATH.'config/user_agents.php')) |
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| 92 | { |
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| 93 | include(APPPATH.'config/user_agents.php'); |
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| 94 | } |
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| 95 | else |
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| 96 | { |
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| 97 | return FALSE; |
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| 98 | } |
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| 99 | |
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| 100 | $return = FALSE; |
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| 101 | |
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| 102 | if (isset($platforms)) |
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| 103 | { |
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| 104 | $this->platforms = $platforms; |
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| 105 | unset($platforms); |
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| 106 | $return = TRUE; |
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| 107 | } |
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| 108 | |
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| 109 | if (isset($browsers)) |
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| 110 | { |
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| 111 | $this->browsers = $browsers; |
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| 112 | unset($browsers); |
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| 113 | $return = TRUE; |
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| 114 | } |
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| 115 | |
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| 116 | if (isset($mobiles)) |
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| 117 | { |
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| 118 | $this->mobiles = $mobiles; |
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| 119 | unset($mobiles); |
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| 120 | $return = TRUE; |
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| 121 | } |
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| 122 | |
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| 123 | if (isset($robots)) |
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| 124 | { |
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| 125 | $this->robots = $robots; |
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| 126 | unset($robots); |
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| 127 | $return = TRUE; |
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| 128 | } |
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| 129 | |
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| 130 | return $return; |
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| 131 | } |
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| 132 | |
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| 133 | // -------------------------------------------------------------------- |
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| 134 | |
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| 135 | /** |
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| 136 | * Compile the User Agent Data |
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| 137 | * |
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| 138 | * @access private |
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| 139 | * @return bool |
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| 140 | */ |
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| 141 | private function _compile_data() |
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| 142 | { |
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| 143 | $this->_set_platform(); |
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| 144 | |
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| 145 | foreach (array('_set_robot', '_set_browser', '_set_mobile') as $function) |
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| 146 | { |
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| 147 | if ($this->$function() === TRUE) |
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| 148 | { |
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| 149 | break; |
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| 150 | } |
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| 151 | } |
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| 152 | } |
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| 153 | |
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| 154 | // -------------------------------------------------------------------- |
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| 155 | |
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| 156 | /** |
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| 157 | * Set the Platform |
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| 158 | * |
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| 159 | * @access private |
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| 160 | * @return mixed |
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| 161 | */ |
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| 162 | private function _set_platform() |
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| 163 | { |
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| 164 | if (is_array($this->platforms) AND count($this->platforms) > 0) |
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| 165 | { |
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| 166 | foreach ($this->platforms as $key => $val) |
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| 167 | { |
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| 168 | if (preg_match("|".preg_quote($key)."|i", $this->agent)) |
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| 169 | { |
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| 170 | $this->platform = $val; |
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| 171 | return TRUE; |
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| 172 | } |
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| 173 | } |
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| 174 | } |
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| 175 | $this->platform = 'Unknown Platform'; |
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| 176 | } |
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| 177 | |
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| 178 | // -------------------------------------------------------------------- |
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| 179 | |
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| 180 | /** |
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| 181 | * Set the Browser |
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| 182 | * |
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| 183 | * @access private |
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| 184 | * @return bool |
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| 185 | */ |
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| 186 | private function _set_browser() |
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| 187 | { |
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| 188 | if (is_array($this->browsers) AND count($this->browsers) > 0) |
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| 189 | { |
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| 190 | foreach ($this->browsers as $key => $val) |
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| 191 | { |
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| 192 | if (preg_match("|".preg_quote($key).".*?([0-9\.]+)|i", $this->agent, $match)) |
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| 193 | { |
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| 194 | $this->is_browser = TRUE; |
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| 195 | $this->version = $match[1]; |
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| 196 | $this->browser = $val; |
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| 197 | $this->_set_mobile(); |
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| 198 | return TRUE; |
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| 199 | } |
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| 200 | } |
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| 201 | } |
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| 202 | return FALSE; |
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| 203 | } |
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| 204 | |
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| 205 | // -------------------------------------------------------------------- |
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| 206 | |
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| 207 | /** |
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| 208 | * Set the Robot |
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| 209 | * |
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| 210 | * @access private |
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| 211 | * @return bool |
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| 212 | */ |
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| 213 | private function _set_robot() |
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| 214 | { |
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| 215 | if (is_array($this->robots) AND count($this->robots) > 0) |
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| 216 | { |
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| 217 | foreach ($this->robots as $key => $val) |
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| 218 | { |
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| 219 | if (preg_match("|".preg_quote($key)."|i", $this->agent)) |
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| 220 | { |
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| 221 | $this->is_robot = TRUE; |
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| 222 | $this->robot = $val; |
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| 223 | return TRUE; |
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| 224 | } |
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| 225 | } |
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| 226 | } |
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| 227 | return FALSE; |
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| 228 | } |
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| 229 | |
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| 230 | // -------------------------------------------------------------------- |
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| 231 | |
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| 232 | /** |
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| 233 | * Set the Mobile Device |
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| 234 | * |
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| 235 | * @access private |
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| 236 | * @return bool |
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| 237 | */ |
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| 238 | private function _set_mobile() |
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| 239 | { |
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| 240 | if (is_array($this->mobiles) AND count($this->mobiles) > 0) |
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| 241 | { |
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| 242 | foreach ($this->mobiles as $key => $val) |
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| 243 | { |
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| 244 | if (FALSE !== (strpos(strtolower($this->agent), $key))) |
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| 245 | { |
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| 246 | $this->is_mobile = TRUE; |
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| 247 | $this->mobile = $val; |
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| 248 | return TRUE; |
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| 249 | } |
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| 250 | } |
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| 251 | } |
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| 252 | return FALSE; |
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| 253 | } |
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| 254 | |
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| 255 | // -------------------------------------------------------------------- |
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| 256 | |
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| 257 | /** |
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| 258 | * Set the accepted languages |
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| 259 | * |
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| 260 | * @access private |
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| 261 | * @return void |
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| 262 | */ |
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| 263 | private function _set_languages() |
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| 264 | { |
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| 265 | if ((count($this->languages) == 0) AND isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) AND $_SERVER['HTTP_ACCEPT_LANGUAGE'] != '') |
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| 266 | { |
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| 267 | $languages = preg_replace('/(;q=[0-9\.]+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_LANGUAGE']))); |
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| 268 | |
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| 269 | $this->languages = explode(',', $languages); |
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| 270 | } |
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| 271 | |
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| 272 | if (count($this->languages) == 0) |
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| 273 | { |
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| 274 | $this->languages = array('Undefined'); |
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| 275 | } |
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| 276 | } |
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| 277 | |
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| 278 | // -------------------------------------------------------------------- |
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| 279 | |
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| 280 | /** |
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| 281 | * Set the accepted character sets |
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| 282 | * |
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| 283 | * @access private |
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| 284 | * @return void |
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| 285 | */ |
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| 286 | private function _set_charsets() |
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| 287 | { |
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| 288 | if ((count($this->charsets) == 0) AND isset($_SERVER['HTTP_ACCEPT_CHARSET']) AND $_SERVER['HTTP_ACCEPT_CHARSET'] != '') |
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| 289 | { |
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| 290 | $charsets = preg_replace('/(;q=.+)/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_CHARSET']))); |
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| 291 | |
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| 292 | $this->charsets = explode(',', $charsets); |
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| 293 | } |
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| 294 | |
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| 295 | if (count($this->charsets) == 0) |
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| 296 | { |
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| 297 | $this->charsets = array('Undefined'); |
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| 298 | } |
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| 299 | } |
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| 300 | |
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| 301 | // -------------------------------------------------------------------- |
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| 302 | |
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| 303 | /** |
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| 304 | * Is Browser |
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| 305 | * |
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| 306 | * @access public |
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| 307 | * @return bool |
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| 308 | */ |
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| 309 | public function is_browser($key = NULL) |
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| 310 | { |
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| 311 | if ( ! $this->is_browser) |
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| 312 | { |
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| 313 | return FALSE; |
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| 314 | } |
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| 315 | |
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| 316 | // No need to be specific, it's a browser |
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| 317 | if ($key === NULL) |
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| 318 | { |
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| 319 | return TRUE; |
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| 320 | } |
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| 321 | |
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| 322 | // Check for a specific browser |
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| 323 | return array_key_exists($key, $this->browsers) AND $this->browser === $this->browsers[$key]; |
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| 324 | } |
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| 325 | |
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| 326 | // -------------------------------------------------------------------- |
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| 327 | |
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| 328 | /** |
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| 329 | * Is Robot |
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| 330 | * |
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| 331 | * @access public |
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| 332 | * @return bool |
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| 333 | */ |
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| 334 | public function is_robot($key = NULL) |
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| 335 | { |
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| 336 | if ( ! $this->is_robot) |
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| 337 | { |
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| 338 | return FALSE; |
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| 339 | } |
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| 340 | |
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| 341 | // No need to be specific, it's a robot |
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| 342 | if ($key === NULL) |
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| 343 | { |
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| 344 | return TRUE; |
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| 345 | } |
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| 346 | |
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| 347 | // Check for a specific robot |
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| 348 | return array_key_exists($key, $this->robots) AND $this->robot === $this->robots[$key]; |
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| 349 | } |
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| 350 | |
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| 351 | // -------------------------------------------------------------------- |
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| 352 | |
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| 353 | /** |
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| 354 | * Is Mobile |
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| 355 | * |
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| 356 | * @access public |
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| 357 | * @return bool |
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| 358 | */ |
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| 359 | public function is_mobile($key = NULL) |
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| 360 | { |
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| 361 | if ( ! $this->is_mobile) |
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| 362 | { |
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| 363 | return FALSE; |
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| 364 | } |
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| 365 | |
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| 366 | // No need to be specific, it's a mobile |
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| 367 | if ($key === NULL) |
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| 368 | { |
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| 369 | return TRUE; |
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| 370 | } |
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| 371 | |
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| 372 | // Check for a specific robot |
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| 373 | return array_key_exists($key, $this->mobiles) AND $this->mobile === $this->mobiles[$key]; |
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| 374 | } |
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| 375 | |
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| 376 | // -------------------------------------------------------------------- |
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| 377 | |
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| 378 | /** |
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| 379 | * Is this a referral from another site? |
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| 380 | * |
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| 381 | * @access public |
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| 382 | * @return bool |
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| 383 | */ |
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| 384 | public function is_referral() |
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| 385 | { |
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| 386 | if ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '') |
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| 387 | { |
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| 388 | return FALSE; |
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| 389 | } |
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| 390 | return TRUE; |
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| 391 | } |
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| 392 | |
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| 393 | // -------------------------------------------------------------------- |
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| 394 | |
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| 395 | /** |
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| 396 | * Agent String |
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| 397 | * |
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| 398 | * @access public |
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| 399 | * @return string |
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| 400 | */ |
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| 401 | public function agent_string() |
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| 402 | { |
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| 403 | return $this->agent; |
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| 404 | } |
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| 405 | |
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| 406 | // -------------------------------------------------------------------- |
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| 407 | |
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| 408 | /** |
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| 409 | * Get Platform |
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| 410 | * |
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| 411 | * @access public |
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| 412 | * @return string |
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| 413 | */ |
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| 414 | public function platform() |
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| 415 | { |
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| 416 | return $this->platform; |
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| 417 | } |
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| 418 | |
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| 419 | // -------------------------------------------------------------------- |
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| 420 | |
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| 421 | /** |
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| 422 | * Get Browser Name |
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| 423 | * |
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| 424 | * @access public |
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| 425 | * @return string |
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| 426 | */ |
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| 427 | public function browser() |
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| 428 | { |
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| 429 | return $this->browser; |
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| 430 | } |
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| 431 | |
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| 432 | // -------------------------------------------------------------------- |
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| 433 | |
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| 434 | /** |
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| 435 | * Get the Browser Version |
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| 436 | * |
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| 437 | * @access public |
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| 438 | * @return string |
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| 439 | */ |
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| 440 | public function version() |
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| 441 | { |
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| 442 | return $this->version; |
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| 443 | } |
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| 444 | |
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| 445 | // -------------------------------------------------------------------- |
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| 446 | |
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| 447 | /** |
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| 448 | * Get The Robot Name |
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| 449 | * |
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| 450 | * @access public |
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| 451 | * @return string |
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| 452 | */ |
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| 453 | public function robot() |
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| 454 | { |
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| 455 | return $this->robot; |
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| 456 | } |
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| 457 | // -------------------------------------------------------------------- |
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| 458 | |
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| 459 | /** |
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| 460 | * Get the Mobile Device |
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| 461 | * |
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| 462 | * @access public |
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| 463 | * @return string |
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| 464 | */ |
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| 465 | public function mobile() |
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| 466 | { |
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| 467 | return $this->mobile; |
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| 468 | } |
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| 469 | |
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| 470 | // -------------------------------------------------------------------- |
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| 471 | |
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| 472 | /** |
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| 473 | * Get the referrer |
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| 474 | * |
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| 475 | * @access public |
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| 476 | * @return bool |
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| 477 | */ |
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| 478 | public function referrer() |
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| 479 | { |
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| 480 | return ( ! isset($_SERVER['HTTP_REFERER']) OR $_SERVER['HTTP_REFERER'] == '') ? '' : trim($_SERVER['HTTP_REFERER']); |
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| 481 | } |
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| 482 | |
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| 483 | // -------------------------------------------------------------------- |
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| 484 | |
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| 485 | /** |
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| 486 | * Get the accepted languages |
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| 487 | * |
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| 488 | * @access public |
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| 489 | * @return array |
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| 490 | */ |
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| 491 | public function languages() |
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| 492 | { |
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| 493 | if (count($this->languages) == 0) |
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| 494 | { |
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| 495 | $this->_set_languages(); |
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| 496 | } |
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| 497 | |
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| 498 | return $this->languages; |
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| 499 | } |
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| 500 | |
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| 501 | // -------------------------------------------------------------------- |
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| 502 | |
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| 503 | /** |
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| 504 | * Get the accepted Character Sets |
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| 505 | * |
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| 506 | * @access public |
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| 507 | * @return array |
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| 508 | */ |
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| 509 | public function charsets() |
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| 510 | { |
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| 511 | if (count($this->charsets) == 0) |
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| 512 | { |
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| 513 | $this->_set_charsets(); |
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| 514 | } |
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| 515 | |
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| 516 | return $this->charsets; |
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| 517 | } |
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| 518 | |
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| 519 | // -------------------------------------------------------------------- |
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| 520 | |
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| 521 | /** |
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| 522 | * Test for a particular language |
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| 523 | * |
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| 524 | * @access public |
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| 525 | * @return bool |
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| 526 | */ |
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| 527 | public function accept_lang($lang = 'en') |
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| 528 | { |
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| 529 | return (in_array(strtolower($lang), $this->languages(), TRUE)); |
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| 530 | } |
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| 531 | |
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| 532 | // -------------------------------------------------------------------- |
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| 533 | |
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| 534 | /** |
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| 535 | * Test for a particular character set |
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| 536 | * |
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| 537 | * @access public |
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| 538 | * @return bool |
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| 539 | */ |
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| 540 | public function accept_charset($charset = 'utf-8') |
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| 541 | { |
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| 542 | return (in_array(strtolower($charset), $this->charsets(), TRUE)); |
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| 543 | } |
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| 544 | |
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| 545 | } |
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| 546 | |
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| 547 | |
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| 548 | /* End of file User_agent.php */ |
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| 549 | /* Location: ./system/libraries/User_agent.php */ |
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