classes/class.ilBrowser.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/



  //**************************************************************************\
  //* Browser detect functions                                                 *
  // This file written by Miles Lott <milosch@phpgroupware.org>               *
  // Majority of code borrowed from Sourceforge 2.5                           *
  // Copyright 1999-2000 (c) The SourceForge Crew - http://sourceforge.net    *
  // Browser detection functions for phpGroupWare developers                  *
  // -------------------------------------------------------------------------*
  // This library is borrowed from the phpGroupWare API                       *
  // http://www.phpgroupware.org/api                                          *
  // Modifications made by Sascha Hofmann <sascha.hofmann@uni-koeln.de>       *
  //                                                                          *
  //**************************************************************************/

class ilBrowser
{
        var $BROWSER_AGENT;
        var $BROWSER_VER;
        var $BROWSER_PLATFORM;
        var $br;
        var $p;
        var $data;

        function ilBrowser()
        {
                $HTTP_USER_AGENT = $_SERVER['HTTP_USER_AGENT'];
                /*
                        Determine browser and version
                */
                if(ereg('MSIE ([0-9].[0-9]{1,2})',$HTTP_USER_AGENT,$log_version))
                {
                        $this->BROWSER_VER = $log_version[1];
                        $this->BROWSER_AGENT = 'IE';
                }
                elseif(ereg('Opera ([0-9].[0-9]{1,2})',$HTTP_USER_AGENT,$log_version) ||
                        ereg('Opera/([0-9].[0-9]{1,2})',$HTTP_USER_AGENT,$log_version))
                {
                        $this->BROWSER_VER   = $log_version[1];
                        $this->BROWSER_AGENT = 'OPERA';
                }
                elseif(ereg('Safari ([0-9/.]*)',$HTTP_USER_AGENT,$log_version) ||
                        ereg('Safari/([0-9/.]*)',$HTTP_USER_AGENT,$log_version))
                {
                        $this->BROWSER_VER   = $log_version[1];
                        $this->BROWSER_AGENT = 'Safari';
                }
                elseif(ereg('Firefox ([0-9/.]*))',$HTTP_USER_AGENT,$log_version) ||
                        ereg('Firefox/([0-9/.]*)',$HTTP_USER_AGENT,$log_version))
                {
                        $this->BROWSER_VER   = $log_version[1];
                        $this->BROWSER_AGENT = 'Firefox';
                }
                elseif(eregi('iCab ([0-9].[0-9a-zA-Z]{1,4})',$HTTP_USER_AGENT,$log_version) ||
                        eregi('iCab/([0-9].[0-9a-zA-Z]{1,4})',$HTTP_USER_AGENT,$log_version))
                {
                        $this->BROWSER_VER   = $log_version[1];
                        $this->BROWSER_AGENT = 'iCab';
                }
                elseif(eregi('Mozilla ([0-9].[0-9a-zA-Z]{1,4})',$HTTP_USER_AGENT,$log_version) ||
                        eregi('Mozilla/([0-9].[0-9a-zA-Z]{1,4})',$HTTP_USER_AGENT,$log_version))
                {
                        $this->BROWSER_VER   = $log_version[1];
                        if (ereg('Gecko',$HTTP_USER_AGENT,$log_version))
                        {
                                $this->BROWSER_AGENT = 'Mozilla';
                        }
                        else
                        {
                                $this->BROWSER_AGENT = 'Netscape';
                        }
                }
                elseif(ereg('Konqueror/([0-9].[0-9].[0-9]{1,2})',$HTTP_USER_AGENT,$log_version) ||
                        ereg('Konqueror/([0-9].[0-9]{1,2})',$HTTP_USER_AGENT,$log_version))
                {
                        $this->BROWSER_VER=$log_version[1];
                        $this->BROWSER_AGENT='Konqueror';
                }
                else
                {
                        $this->BROWSER_VER=0;
                        $this->BROWSER_AGENT='OTHER';
                }

                /*
                        Determine platform
                */
                if(strstr($HTTP_USER_AGENT,'Win'))
                {
                        $this->BROWSER_PLATFORM='Win';
                }
                elseif(strstr($HTTP_USER_AGENT,'Mac'))
                {
                        $this->BROWSER_PLATFORM='Mac';
                }
                elseif(strstr($HTTP_USER_AGENT,'Linux'))
                {
                        $this->BROWSER_PLATFORM='Linux';
                }
                elseif(strstr($HTTP_USER_AGENT,'Unix'))
                {
                        $this->BROWSER_PLATFORM='Unix';
                }
                elseif(strstr($HTTP_USER_AGENT,'Beos'))
                {
                        $this->BROWSER_PLATFORM='Beos';
                }
                else
                {
                        $this->BROWSER_PLATFORM='Other';
                }

/*
                echo "<br>Agent: $HTTP_USER_AGENT";
                echo "<br><b>Browser</b>";
                echo "<br>IE: ".$this->isIE();
                echo "<br>Netscape: ".$this->isNetscape();
                echo "<br>Mozilla: ".$this->isMozilla();
                echo "<br>Firefox: ".$this->isFirefox();
                echo "<br>Safari: ".$this->isSafari();
                echo "<br>Opera: ".$this->isOpera();
                echo "<br><b>OS</b>";
                echo "<br>Mac: ".$this->isMac();
                echo "<br>Windows: ".$this->isWindows();
                echo "<br>Linux: ".$this->isLinux();
                echo "<br>Unix: ".$this->isUnix();
                echo "<br>Beos: ".$this->isBeos();
                echo "<br><b>Summary</b>";
                echo "<br>OS: ".$this->getPlatform();
                echo "<br>Version: ".$this->getVersion(false);
                echo "<br>Agent: ".$this->getAgent();
*/

                // The br and p functions are supposed to return the correct
                // value for tags that do not need to be closed.  This is
                // per the xhmtl spec, so we need to fix this to include
                // all compliant browsers we know of.
                if($this->BROWSER_AGENT == 'IE')
                {
                        $this->br = '<br/>';
                        $this->p = '<p/>';
                }
                else
                {
                        $this->br = '<br>';
                        $this->p = '<p>';
                }
        }

        function returnArray()
        {
                $this->data = array(
                        'agent'    => $this->getAgent(),
                        'version'  => $this->getVersion(false),
                        'platform' => $this->getPlatform()
                );

                return $this->data;
        }

        function getAgent()
        {
                return $this->BROWSER_AGENT;
        }

        function getVersion($a_as_array = true)
        {
                return explode(".", $this->BROWSER_VER);
        }

        function getPlatform()
        {
                return $this->BROWSER_PLATFORM;
        }

        function isLinux()
        {
                if($this->getPlatform()=='Linux')
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

        function isUnix()
        {
                if($this->getPlatform()=='Unix')
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

        function isBeos()
        {
                if($this->getPlatform()=='Beos')
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

        function isMac()
        {
                if($this->getPlatform()=='Mac')
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

        function isWindows()
        {
                if($this->getPlatform()=='Win')
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

        function isIE()
        {
                if($this->getAgent()=='IE')
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

        function isNetscape()
        {
                if($this->getAgent()=='Netscape')
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

        function isMozilla()
        {
                if($this->getAgent()=='Mozilla')
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

        function isOpera()
        {
                if($this->getAgent()=='OPERA')
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

        function isSafari()
        {
                if($this->getAgent()=='Safari')
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

        function isFirefox()
        {
                if($this->getAgent()=='Firefox')
                {
                        return true;
                }
                else
                {
                        return false;
                }
        }

}

?>