<?php
/**
* Image Resizer & img Tag "Filler"
*
* @author Andreas Martens <heyn@plautdietsch.de>
* @author Patrick Teague <webdude@veslach.com>
*
* @version $Id: show_image_in_imgtag.php 617 2007-01-04 19:43:08Z soeren_nb $
* @package SupaCart
* @subpackage core
* See COPYRIGHT.php for copyright notices and details.
* @license GNU/GPL Version 2, see LICENSE.php
* SupaCart is free software, originally derived from Virtuemart. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See /administrator/components/com_supacart/COPYRIGHT.php for copyright notices and details.
*
* http://www.supacart.com
*/
define('_VALID_MOS', 1);
include_once("../../configuration.php");
include_once("../../administrator/components/com_supacart/supacart.cfg.php");

//	Image2Thumbnail - Klasse einbinden 
include( CLASSPATH . "class.img2thumb.php");

$basefilename = @basename(urldecode($_REQUEST['filename']));
$filename = IMAGEPATH."product/".$basefilename;
$filename2 = IMAGEPATH."product/resized/".$basefilename;
$newxsize = @$_REQUEST['newxsize'];
$newysize = @$_REQUEST['newysize'];
$maxsize = false;
$bgred = 255;
$bggreen = 255;
$bgblue = 255;

/*
if( !isset($fileout) )
	$fileout="";
if( !isset($maxsize) )
	$maxsize=0;
*/

/* Minimum security */
if( !file_exists( $filename ) && !file_exists( $filename2 )) {
	die('File does not exist');
}

$fileinfo = pathinfo( $filename );
$file = str_replace(".".$fileinfo['extension'], "", $fileinfo['basename']);
// In class.img2thumb in the function NewImgShow() the extension .jpg will be added to .gif if imagegif does not exist.

// If the image is a gif, and imagegif() returns false then make the extension ".gif.jpg"

if( $fileinfo['extension'] == "gif") {
  if( function_exists("imagegif") ) {
    $ext = ".".$fileinfo['extension'];
    $noimgif="";
  }
  else {
    $ext = ".jpg";
    $noimgif = ".".$fileinfo['extension'];
  }
} 
else {
  $ext =  ".".$fileinfo['extension'];
  $noimgif="";
}

if( file_exists($filename2)) { 
	$fileout = $filename2;
} else {
	$fileout = IMAGEPATH."/product/resized/".$file."_".PSHOP_IMG_WIDTH."x".PSHOP_IMG_HEIGHT.$noimgif.$ext;
}

// Tell the user agent to cache this script/stylesheet for an hour
$age = 3600;
header( 'Expires: '.gmdate( 'D, d M Y H:i:s', time()+ $age ) . ' GMT' );
header( 'Cache-Control: max-age='.$age.', must-revalidate' );

if( file_exists( $fileout ) ) {
  /* We already have a resized image
  * So send the file to the browser */
  
  	switch($ext)
		{
			case ".gif":
				header ("Content-type: image/gif");
				readfile($fileout);
				break;
			case ".jpg":
				header ("Content-type: image/jpeg");
				readfile($fileout);
				break;
			case ".png":
				header ("Content-type: image/png");
				readfile($fileout);
				break;
		}
}
else {
 	/* We need to resize the image and Save the new one (all done in the constructor) */
  	$neu = new Img2Thumb($filename,$newxsize,$newysize,$fileout,$maxsize,$bgred,$bggreen,$bgblue);
  	
  	/* Send the file to the browser */
  	switch($ext)
		{
			case ".gif":
				header ("Content-type: image/gif");
				readfile($fileout);
				break;
			case ".jpg":
				header ("Content-type: image/jpeg");
				readfile($fileout);
				break;
			case ".png":
				header ("Content-type: image/png");
				readfile($fileout);
				break;
		}
}
?>