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   1  <?php
   2  /*******************************************************************************
   3      $Id: phpSniff.class.php,v 1.21 2003/07/02 23:28:35 epsilon7 Exp $
   4      
   5      phpSniff: HTTP_USER_AGENT Client Sniffer for PHP
   6      Copyright (C) 2001 Roger Raymond ~ epsilon7@users.sourceforge.net
   7  
   8      This library is free software; you can redistribute it and/or
   9      modify it under the terms of the GNU Lesser General Public
  10      License as published by the Free Software Foundation; either
  11      version 2.1 of the License, or (at your option) any later version.
  12  
  13      This library is distributed in the hope that it will be useful,
  14      but WITHOUT ANY WARRANTY; without even the implied warranty of
  15      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16      Lesser General Public License for more details.
  17  
  18      You should have received a copy of the GNU Lesser General Public
  19      License along with this library; if not, write to the Free Software
  20      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *******************************************************************************/
  22  lt_include( PLOG_CLASS_PATH.'class/net/http/phpsniff/phpSniff.core.php');
  23  
  24  //===============================================================
  25  //  the following defines are used to create the short
  26  //  browser name used throughout the script.
  27  //  change these to suit your needs
  28  //===============================================================
  29  
  30  /**
  31   * \ingroup Net_HTTP
  32   *
  33   * The PHPSniff package provides support for detecting the browser capabilities at run-time.
  34   *
  35   */
  36  class phpSniff extends phpSniff_core
  37  {   var $_version = '2.1.3';
  38      /**
  39       *  Configuration
  40       *
  41       *  $_temp_file_path
  42       *      default : /tmp/
  43       *      desc    : directory writable by the server to store cookie check files.
  44       *              : trailing slash is needed. only used if you use the check cookie routine
  45       *
  46       *  $_check_cookies
  47       *      default : null
  48       *      desc    : Allow for the script to redirect the browser in order
  49       *              : to check for cookies.   In order for this to work, this
  50       *              : class must be instantiated before any headers are sent.
  51       *
  52       *  $_default_language
  53       *      default : en-us
  54       *      desc    : language to report as if no languages are found
  55       *
  56       *  $_allow_masquerading
  57       *      default : null
  58       *      desc    : Allow for browser to Masquerade as another.
  59       *              : (ie: Opera identifies as MSIE 5.0)
  60       *
  61       *  $_browsers
  62       *      desc    : 2D Array of browsers we wish to search for
  63       *              : in key => value pairs.
  64       *              : key   = browser to search for [as in HTTP_USER_AGENT]
  65       *              : value = value to return as 'browser' property
  66       *
  67       *  $_javascript_versions
  68       *      desc    : 2D Array of javascript version supported by which browser
  69       *              : in key => value pairs.
  70       *              : key   = javascript version
  71       *              : value = search parameter for browsers that support the
  72       *              :         javascript version listed in the key (comma delimited)
  73       *              :         note: the search parameters rely on the values
  74       *              :               set in the $_browsers array
  75       *
  76       *  $_browser_features
  77       *      desc    : 2D Array of browser features supported by which browser
  78       *              : in key => value pairs.
  79       *              : key   = feature
  80       *              : value = search parameter for browsers that support the
  81       *              :         feature listed in the key (comma delimited)
  82       *              :         note: the search parameters rely on the values
  83       *              :               set in the $_browsers array
  84       *
  85       *  $_browser_quirks
  86       *      desc    : 2D Array of browser quirks present in which browser
  87       *              : in key => value pairs.
  88       *              : key   = quirk
  89       *              : value = search parameter for browsers that feature the
  90       *              :         quirk listed in the key (comma delimited)
  91       *              :         note: the search parameters rely on the values
  92       *              :               set in the $_browsers array
  93       **/
  94  
  95      var $_temp_file_path        = '/tmp/'; // with trailing slash
  96      var $_check_cookies         = NULL;
  97      var $_default_language      = 'en-us';
  98      var $_allow_masquerading    = NULL;
  99      var $_php_version           = '';
 100      
 101      var $_browsers = array(
 102          'microsoft internet explorer' => 'IE',
 103          'msie'                        => 'IE',
 104          'netscape6'                   => 'NS',
 105          'netscape'                    => 'NS',
 106          'galeon'                      => 'GA',
 107          'phoenix'                     => 'PX',
 108          'mozilla firebird'            => 'FB',
 109          'firebird'                    => 'FB',
 110          'chimera'                     => 'CH',
 111          'camino'                      => 'CA',
 112          'safari'                      => 'SF',
 113          'k-meleon'                    => 'KM',
 114          'mozilla'                     => 'MZ',
 115          'opera'                       => 'OP',
 116          'konqueror'                   => 'KQ',
 117          'icab'                        => 'IC',
 118          'lynx'                        => 'LX',
 119          'links'                       => 'LI',                    
 120          'ncsa mosaic'                 => 'MO',
 121          'amaya'                       => 'AM',
 122          'omniweb'                     => 'OW',
 123          'hotjava'                      => 'HJ',
 124          'browsex'                     => 'BX',
 125          'amigavoyager'                => 'AV',
 126          'amiga-aweb'                  => 'AW',
 127          'ibrowse'                     => 'IB'
 128          );
 129  
 130      var $_javascript_versions = array(
 131          '1.5'   =>  'NS5+,MZ,PX,FB,GA,CH,CA,SF,KQ3+,KM', // browsers that support JavaScript 1.5
 132          '1.4'   =>  '',
 133          '1.3'   =>  'NS4.05+,OP5+,IE5+',
 134          '1.2'   =>  'NS4+,IE4+',
 135          '1.1'   =>  'NS3+,OP,KQ',
 136          '1.0'   =>  'NS2+,IE3+',
 137          '0'     =>    'LI,LX,HJ'    
 138          );
 139          
 140      var $_browser_features = array(
 141          /**
 142           *    the following are true by default
 143           *    (see phpSniff.core.php $_feature_set array)
 144           *    browsers listed here will be set to false
 145           **/
 146          'html'        =>    '',
 147          'images'    =>    'LI,LX',
 148          'frames'     =>    'LI,LX',
 149          'tables'    =>    '',
 150          'java'        =>    'OP3,LI,LX,NS1,MO,IE1,IE2',
 151          'plugins'    =>    'IE1,IE2,LI,LX',
 152          /**  
 153           *    the following are false by default
 154           *    (see phpSniff.core.php $_feature_set array)
 155           *    browsers listed here will be set to true
 156           **/
 157          'css2'        =>    'NS5+,IE5+,MZ,PX,FB,CH,CA,SF,GA,KQ3+,OP7+,KM',
 158          'css1'        =>    'NS4+,IE4+,MZ,PX,FB,CH,CA,SF,GA,KQ,OP7+,KM',
 159          'iframes'    =>    'IE3+,NS5+,MZ,PX,FB,CH,CA,SF,GA,KQ,OP7+,KM',
 160          'xml'        =>    'IE5+,NS5+,MZ,PX,FB,CH,CA,SF,GA,KQ,OP7+,KM',
 161          'dom'        =>    'IE5+,NS5+,MZ,PX,FB,CH,CA,SF,GA,KQ,OP7+,KM',
 162          'hdml'        =>    '',
 163          'wml'        =>    '',
 164          'xmlhttpreq'=>  'IE5+,NS5+,MZ,SF'
 165          );
 166          
 167      var $_browser_quirks = array(
 168          'must_cache_forms'            =>    'NS,MZ,FB,PX',
 169          'avoid_popup_windows'        =>    'IE3,LI,LX',
 170          'cache_ssl_downloads'        =>    'IE',
 171          'break_disposition_header'    =>    'IE5.5',
 172          'empty_file_input_value'    =>    'KQ',
 173          'scrollbar_in_way'            =>    'IE6'
 174          );
 175  
 176      function phpSniff($UA='',$settings = true)
 177      {   //  populate the HTTP_USER_AGENT string
 178          //  20020425 :: rraymond
 179          //      routine for easier configuration of the client at runtime
 180          if(is_array($settings)) {
 181              $run = true;
 182              extract($settings);
 183              $this->_check_cookies = $check_cookies;
 184              $this->_default_language = $default_language;
 185              $this->_allow_masquerading = $allow_masquerading;
 186          } else {
 187              // for backwards compatibility with 2.0.x series
 188              $run = $settings;
 189          }
 190          
 191          // 20020425 :: besfred
 192          if(empty($UA)) $UA = getenv('HTTP_USER_AGENT');
 193          if(empty($UA)) {
 194              global $HTTP_SERVER_VARS;
 195              if( !isset( $_SERVER['HTTP_USER_AGENT'] )) $_SERVER['HTTP_USER_AGENT'] = '';
 196              if( !isset( $HTTP_SERVER_VARS['HTTP_USER_AGENT'] )) $HTTP_SERVER_VARS['HTTP_USER_AGENT'] = '';
 197              $UA = ( phpversion() >= "4.1.0"  ) ? $_SERVER['HTTP_USER_AGENT'] : $HTTP_SERVER_VARS['HTTP_USER_AGENT'];
 198          }
 199          // 20020910 :: rraymond
 200          if(empty($UA)) return false;
 201          
 202          $this->_set_browser('ua',$UA);
 203          if($run) $this->init();
 204      }
 205  }
 206  ?>