egroupware/phpgwapi/inc/class.browser.inc.php

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<?php
/**************************************************************************\
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* eGroupWare API - Browser detect functions *
* This file written by Miles Lott <milosch@groupwhere.org> *
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* Majority of code borrowed from Sourceforge 2.5 *
* Copyright 1999-2000 (c) The SourceForge Crew - http://sourceforge.net *
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* Browser detection functions for eGroupWare developers *
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* -------------------------------------------------------------------------*
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* This library is part of the eGroupWare API *
* http://www.egroupware.org/api *
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* ------------------------------------------------------------------------ *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, *
* or any later version. *
* This library 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 Lesser General Public License for more details. *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
\**************************************************************************/
/* $Id$ */
class browser
{
var $BROWSER_AGENT;
var $BROWSER_VER;
var $BROWSER_PLATFORM;
var $br;
var $p;
var $data;
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function browser()
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{
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$HTTP_USER_AGENT = $_SERVER['HTTP_USER_AGENT'];
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/*
Determine browser and version
*/
if(preg_match('/MSIE ([0-9].[0-9]{1,2})/',$HTTP_USER_AGENT,$log_version))
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{
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$this->BROWSER_VER = $log_version[1];
$this->BROWSER_AGENT = 'IE';
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}
elseif(preg_match('/Opera ([0-9].[0-9]{1,2})/',$HTTP_USER_AGENT,$log_version) ||
preg_match('/Opera\\/([0-9].[0-9]{1,2})/',$HTTP_USER_AGENT,$log_version))
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{
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$this->BROWSER_VER = $log_version[1];
$this->BROWSER_AGENT = 'OPERA';
}
elseif(preg_match('/iCab ([0-9].[0-9a-zA-Z]{1,4})/i',$HTTP_USER_AGENT,$log_version) ||
preg_match('/iCab\\/([0-9].[0-9a-zA-Z]{1,4})/i',$HTTP_USER_AGENT,$log_version))
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{
$this->BROWSER_VER = $log_version[1];
$this->BROWSER_AGENT = 'iCab';
}
elseif(strpos($HTTP_USER_AGENT,'Gecko') !== false)
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{
$this->BROWSER_VER = $log_version[1];
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$this->BROWSER_AGENT = 'MOZILLA';
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}
elseif(preg_match('/Konqueror\\/([0-9].[0-9].[0-9]{1,2})/',$HTTP_USER_AGENT,$log_version) ||
preg_match('/Konqueror\\/([0-9].[0-9]{1,2})/',$HTTP_USER_AGENT,$log_version))
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{
$this->BROWSER_VER=$log_version[1];
$this->BROWSER_AGENT='Konqueror';
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}
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else
{
$this->BROWSER_VER=0;
$this->BROWSER_AGENT='OTHER';
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}
/*
Determine platform
*/
if(strpos($HTTP_USER_AGENT,'Win') !== false)
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{
$this->BROWSER_PLATFORM='Win';
}
elseif(strpos($HTTP_USER_AGENT,'Mac') !== false)
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{
$this->BROWSER_PLATFORM='Mac';
}
elseif(strpos($HTTP_USER_AGENT,'Linux') !== false)
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{
$this->BROWSER_PLATFORM='Linux';
}
elseif(strpos($HTTP_USER_AGENT,'Unix') !== false)
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{
$this->BROWSER_PLATFORM='Unix';
}
elseif(strpos($HTTP_USER_AGENT,'Beos') !== false)
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{
$this->BROWSER_PLATFORM='Beos';
}
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else
{
$this->BROWSER_PLATFORM='Other';
}
/*
echo "\n\nAgent: $HTTP_USER_AGENT";
echo "\nIE: ".browser_is_ie();
echo "\nMac: ".browser_is_mac();
echo "\nWindows: ".browser_is_windows();
echo "\nPlatform: ".browser_get_platform();
echo "\nVersion: ".browser_get_version();
echo "\nAgent: ".browser_get_agent();
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*/
// The br and p functions are supposed to return the correct
// value for tags that do not need to be closed. This is
// per the xhmtl spec, so we need to fix this to include
// all compliant browsers we know of.
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if($this->BROWSER_AGENT == 'IE')
{
$this->br = '<br/>';
$this->p = '<p/>';
}
else
{
$this->br = '<br>';
$this->p = '<p>';
}
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}
function return_array()
{
$this->data = array(
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'agent' => $this->get_agent(),
'version' => $this->get_version(),
'platform' => $this->get_platform()
);
return $this->data;
}
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function get_agent()
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{
return $this->BROWSER_AGENT;
}
function get_version()
{
return $this->BROWSER_VER;
}
function get_platform()
{
return $this->BROWSER_PLATFORM;
}
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function is_linux()
{
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if($this->get_platform()=='Linux')
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{
return true;
}
else
{
return false;
}
}
function is_unix()
{
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if($this->get_platform()=='Unix')
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{
return true;
}
else
{
return false;
}
}
function is_beos()
{
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if($this->get_platform()=='Beos')
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{
return true;
}
else
{
return false;
}
}
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function is_mac()
{
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if($this->get_platform()=='Mac')
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{
return true;
}
else
{
return false;
}
}
function is_windows()
{
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if($this->get_platform()=='Win')
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{
return true;
}
else
{
return false;
}
}
function is_ie()
{
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if($this->get_agent()=='IE')
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{
return true;
}
else
{
return false;
}
}
function is_netscape()
{
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if($this->get_agent()=='MOZILLA')
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{
return true;
}
else
{
return false;
}
}
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function is_opera()
{
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if($this->get_agent()=='OPERA')
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{
return true;
}
else
{
return false;
}
}
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// Echo content headers for file downloads
function content_header($fn='',$mime='',$length='',$nocache=True)
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{
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// if no mime-type is given or it's the default binary-type, guess it from the extension
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if(empty($mime) || $mime == 'application/octet-stream')
{
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$mime_magic = createObject('phpgwapi.mime_magic');
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$mime = $mime_magic->filename2mime($fn);
}
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if($fn)
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{
if($this->get_agent() == 'IE') // && browser_get_version() == "5.5")
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{
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$attachment = '';
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}
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else
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{
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$attachment = ' attachment;';
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}
// Show this for all
header('Content-disposition:'.$attachment.' filename="'.$fn.'"');
header('Content-type: '.$mime);
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if($length)
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{
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header('Content-length: '.$length);
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}
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if($nocache)
{
header('Pragma: no-cache');
header('Pragma: public');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
}
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}
}
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}
?>