1: <?php
 2: /**
 3:  * The Horde_Core_Browser class extends the base Horde_Browser class by
 4:  * allowing storage of IE version information in order to identify additional
 5:  * browser quirks.
 6:  *
 7:  * Copyright 2010-2012 Horde LLC (http://www.horde.org/)
 8:  *
 9:  * See the enclosed file COPYING for license information (LGPL). If you
10:  * did not receive this file, see http://www.horde.org/licenses/lgpl21.
11:  *
12:  * @author   Michael Slusarz <slusarz@horde.org>
13:  * @category Horde
14:  * @license  http://www.horde.org/licenses/lgpl21 LGPL 2.1
15:  * @package  Core
16:  */
17: class Horde_Core_Browser extends Horde_Browser
18: {
19:     /**
20:      */
21:     public function match($userAgent = null, $accept = null)
22:     {
23:         parent::match($userAgent, $accept);
24: 
25:         if ($this->isBrowser('msie')) {
26:             /* IE 6 (pre-SP1) and 5.5 (pre-SP1) have buggy compression.
27:              * The versions affected are as follows:
28:              * 6.00.2462.0000  Internet Explorer 6 Public Preview (Beta)
29:              * 6.00.2479.0006  Internet Explorer 6 Public Preview (Beta) Refresh
30:              * 6.00.2600.0000  Internet Explorer 6 (Windows XP)
31:              * 5.50.3825.1300  Internet Explorer 5.5 Developer Preview (Beta)
32:              * 5.50.4030.2400  Internet Explorer 5.5 & Internet Tools Beta
33:              * 5.50.4134.0100  Internet Explorer 5.5 for Windows Me (4.90.3000)
34:              * 5.50.4134.0600  Internet Explorer 5.5
35:              * 5.50.4308.2900  Internet Explorer 5.5 Advanced Security Privacy Beta
36:              *
37:              * See:
38:              * ====
39:              * http://support.microsoft.com/kb/164539;
40:              * http://support.microsoft.com/default.aspx?scid=kb;en-us;Q312496)
41:              * http://support.microsoft.com/default.aspx?scid=kb;en-us;Q313712
42:              */
43:             $ie_vers = $this->getIEVersion();
44:             $buggy_list = array(
45:                 '6,00,2462,0000', '6,0,2462,0', '6,00,2479,0006',
46:                 '6,0,2479,0006', '6,00,2600,0000', '6,0,2600,0',
47:                 '5,50,3825,1300', '5,50,4030,2400', '5,50,4134,0100',
48:                 '5,50,4134,0600', '5,50,4308,2900'
49:             );
50:             if (!is_null($ie_vers) && in_array($ie_vers, $buggy_list)) {
51:                 $this->setQuirk('buggy_compression');
52:             }
53:         }
54: 
55:         try {
56:             Horde::callHook('browser_modify', array($this), 'horde');
57:         } catch (Horde_Exception_HookNotSet $e) {
58:         }
59:     }
60: 
61:     /**
62:      * Sets the IE version in the session.
63:      *
64:      * @param string $ver  The IE Version string.
65:      */
66:     public function setIEVersion($ver)
67:     {
68:         $GLOBALS['session']->set('horde', 'ie_version', $ver);
69:     }
70: 
71:     /**
72:      * Returns the IE version stored in the session, if available.
73:      *
74:      * @return mixed  The IE Version string or null if no string is stored.
75:      */
76:     public function getIEVersion()
77:     {
78:         return isset($GLOBALS['session'])
79:             ? $GLOBALS['session']->get('horde', 'ie_version')
80:             : null;
81:     }
82: 
83: }
84: