program/include/rcube_browser.php

   1 <?php
   2
   3 /*
   4  +-----------------------------------------------------------------------+
   5  | program/include/rcube_browser.php                                     |
   6  |                                                                       |
   7  | This file is part of the RoundCube Webmail client                     |
   8  | Copyright (C) 2007-2009, RoundCube Dev. - Switzerland                 |
   9  | Licensed under the GNU GPL                                            |
  10  |                                                                       |
  11  | PURPOSE:                                                              |
  12  |   Class representing the client browser's properties                  |
  13  |                                                                       |
  14  +-----------------------------------------------------------------------+
  15  | Author: Thomas Bruederli <roundcube@gmail.com>                        |
  16  +-----------------------------------------------------------------------+
  17
  18  $Id: rcube_browser.php 328 2006-08-30 17:41:21Z thomasb $
  19
  20 */
  21
  22 /**
  23  * rcube_browser
  24  *
  25  * Provide details about the client's browser based on the User-Agent header
  26  *
  27  * @package Core
  28  */
  29 class rcube_browser
  30 {
  31     function __construct()
  32     {
  33         $HTTP_USER_AGENT = $_SERVER['HTTP_USER_AGENT'];
  34
  35         $this->ver = 0;
  36         $this->win = stristr($HTTP_USER_AGENT, 'win');
  37         $this->mac = stristr($HTTP_USER_AGENT, 'mac');
  38         $this->linux = stristr($HTTP_USER_AGENT, 'linux');
  39         $this->unix  = stristr($HTTP_USER_AGENT, 'unix');
  40
  41         $this->opera = stristr($HTTP_USER_AGENT, 'opera');
  42         $this->ns4 = stristr($HTTP_USER_AGENT, 'mozilla/4') && !stristr($HTTP_USER_AGENT, 'msie');
  43         $this->ns  = ($this->ns4 || stristr($HTTP_USER_AGENT, 'netscape'));
  44         $this->ie  = stristr($HTTP_USER_AGENT, 'compatible; msie') && !$this->opera;
  45         $this->mz  = stristr($HTTP_USER_AGENT, 'mozilla/5');
  46         $this->khtml = stristr($HTTP_USER_AGENT, 'khtml');
  47         $this->safari = ($this->khtml || stristr($HTTP_USER_AGENT, 'safari'));
  48
  49         if ($this->ns) {
  50             $test = eregi("mozilla\/([0-9\.]+)", $HTTP_USER_AGENT, $regs);
  51             $this->ver = $test ? (float)$regs[1] : 0;
  52         }
  53         if ($this->mz) {
  54             $test = ereg("rv:([0-9\.]+)", $HTTP_USER_AGENT, $regs);
  55             $this->ver = $test ? (float)$regs[1] : 0;
  56         }
  57         if($this->ie) {
  58             $test = eregi("msie ([0-9\.]+)", $HTTP_USER_AGENT, $regs);
  59             $this->ver = $test ? (float)$regs[1] : 0;
  60         }
  61         if ($this->opera) {
  62             $test = eregi("opera ([0-9\.]+)", $HTTP_USER_AGENT, $regs);
  63             $this->ver = $test ? (float)$regs[1] : 0;
  64         }
  65
  66         if (eregi(" ([a-z]{2})-([a-z]{2})", $HTTP_USER_AGENT, $regs))
  67             $this->lang =  $regs[1];
  68         else
  69             $this->lang =  'en';
  70
  71         $this->dom = ($this->mz || $this->safari || ($this->ie && $this->ver>=5) || ($this->opera && $this->ver>=7));
  72         $this->pngalpha = $this->mz || $this->safari || ($this->ie && $this->ver>=5.5) ||
  73             ($this->ie && $this->ver>=5 && $this->mac) || ($this->opera && $this->ver>=7) ? true : false;
  74     }
  75   }
  76