<?php
defined( '_VALID_MOS' ) or die( 'Direct Access to this location is not allowed.' );
/**
*
* @version $Id: ps_product_files.php 638 2007-01-16 18:48:21Z soeren_nb $
* @package SupaCart
* @subpackage classes
* 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
*/

/*
* CLASS DESCRIPTION
*
* ps_product_files
*
* The class is is used to manage product files.
*************************************************************************/
class ps_product_files {

	/*@param boolean Wether filename already exists or not */
	var $fileexists = false;

	/**************************************************************************
	** name: validate_add()
	** created by: Soeren
	** description:
	** parameters:
	** returns:
	***************************************************************************/
	function validate_add( &$d ) {

		$db = new ps_DB;

		if (empty($_FILES["file_upload"]["name"]) && empty($d['file_url'])) {
			$GLOBALS['vmLogger']->log( "You must either Upload a File or provide a File URL.", PEAR_LOG_ERR );
			return False;
		}
		if (empty($d["product_id"])) {
			$GLOBALS['vmLogger']->log( "A product ID must be specified.", PEAR_LOG_ERR );
			return False;
		}

		if (!empty($_FILES["file_upload"]["name"])) {
			$q = "SELECT count(*) as rowcnt from #__{sc}_product_files WHERE";
			$q .= " file_name LIKE '%" .  $_FILES["file_upload"]["name"] . "%'";
			$db->query($q);
			$db->next_record();
			if ($db->f("rowcnt") > 0) {
				$this->fileexists = true;
			}
		}
		return True;

	}

	/**************************************************************************
	** name: validate_delete()
	** created by: Soeren
	** description:
	** parameters:
	** returns:
	***************************************************************************/
	function validate_delete( $file_id, &$d ) {

		$db = new ps_DB;

		if (empty($file_id)) {
			$GLOBALS['vmLogger']->log( "Please select a file to delete.", PEAR_LOG_ERR );
			return False;
		}
		$q_dl = "SELECT attribute_value, attribute_name,file_id from #__{sc}_product_attribute,#__{sc}_product_files WHERE ";
		$q_dl .= "product_id='".$d["product_id"]."' AND attribute_name='download' ";
		$q_dl .= "AND file_id='$file_id' AND attribute_value=file_title";
		$db->query($q_dl);
		if( $db->next_record() ) {
			$GLOBALS['vmLogger']->log( "The file ".$db->f("attribute_value")." is still a Downloadable Product File!", PEAR_LOG_ERR );
			return False;
		}
		else {
			return True;
		}
	}

	/**************************************************************************
	** name: validate_update
	** created by:
	** description:
	** parameters:
	** returns:
	***************************************************************************/
	function validate_update( &$d ) {
		global $vmLogger;
		
		$db = new ps_DB;
		if (empty($d["product_id"])) {
			$vmLogger->err( "A product ID must be specified.");
			return False;
		}

		if (!empty($_FILES["file_upload"]["name"])) {
			$q = "SELECT count(*) as rowcnt from #__{sc}_product_files WHERE";
			$q .= " file_name LIKE '%" .  $_FILES["file_upload"]["name"] . "%'";
			$db->query($q);
			$db->next_record();
			if ($db->f("rowcnt") > 0) {
				$this->fileexists = true;
			}
		}
		return True;
	}


	/**************************************************************************
	* name: add()
	* created by: Soeren
	* description: Upload a file & Create a new File entry
	* parameters:
	* returns:
	**************************************************************************/
	function add( &$d ) {
		global $mosConfig_absolute_path, $mosConfig_live_site, 
			$database, $VM_LANG, $vmLogger;

		$db = new ps_DB;
		$timestamp = time();

		if (!$this->validate_add($d)) {
			return False;
		}

		if( empty( $d["file_published"] )) {
			$d["file_published"] = 0;
		}
		if( empty( $d["file_create_thumbnail"] )) {
			$d["file_create_thumbnail"] = 0;
		}

		// Do we have an uploaded file?
		if( !empty($_FILES['file_upload']['name']) ) {
			// Uploaded file branch
			$upload_success = false;
			$fileinfo = pathinfo( $_FILES['file_upload']['name'] );
			$ext = $fileinfo["extension"];

			if( $this->fileexists ) {
				// must rename uploaded file!
				$filename = uniqid("ren_") . $_FILES['file_upload']['name'];
			}
			else {
				$filename = $_FILES['file_upload']['name'];
			}

			// file_title...Beware of renaming files!
			if( @$d["file_title"] == $_FILES['file_upload']['name'] ) {
				if( $filename != $_FILES['file_upload']['name'] ) {
					$d["file_title"] = $filename;
				}
			}

			switch( $d["upload_dir"] ) {
				case "IMAGEPATH":
					$uploaddir = IMAGEPATH ."product/";
					break;
				case "FILEPATH":
					$uploaddir = trim( $d["file_path"] );
					if( !file_exists($uploaddir) ) {
						@mkdir( $uploaddir );
					}
					if( !file_exists( $uploaddir ) ) {
						$vmLogger->err( $VM_LANG->_PHPSHOP_FILES_PATH_ERROR );
						return false;
					}
					
					if( substr( $uploaddir, strlen($uploaddir)-1, 1) != '/') {
						$uploaddir .= '/';
					}
					break;
				case "DOWNLOADPATH":
					$uploaddir = DOWNLOADROOT;
					break;
			}
			if( $this->checkUploadedFile( 'file_upload' ) ) {
				$upload_success = $this->moveUploadedFile( 'file_upload', $uploaddir.$filename);
			}
			else {
				$vmLogger->err( $VM_LANG->_PHPSHOP_FILES_UPLOAD_FAILURE );
				return false;
			}
			
			if( @$d['file_type'] == "image" ) {
				$is_image = "1";
				$d["file_url"] = IMAGEURL."product/".$filename;

				$file_contents = "";

				if( $d["file_create_thumbnail"] == "1" ) {
					## RESIZE THE IMAGE ####
					require_once( CLASSPATH . "class.img2thumb.php" );
					$fileout = $uploaddir . "resized/".basename($filename, ".".$ext)."_".PSHOP_IMG_WIDTH."x".PSHOP_IMG_HEIGHT.".$ext";
					$tmp_filename = $uploaddir . $filename;
					$newxsize = PSHOP_IMG_WIDTH;
					$newysize = PSHOP_IMG_HEIGHT;
					$maxsize = 0;

					$bgred = $bggreen = $bgblue = 255;
					/* We need to resize the image and Save the new one (all done in the constructor) */
					$neu = new Img2Thumb($tmp_filename,$newxsize,$newysize,$fileout,$maxsize,$bgred,$bggreen,$bgblue);

					if( is_file( $fileout ) ) {
						$vmLogger->info( $VM_LANG->_PHPSHOP_FILES_IMAGE_RESIZE_SUCCESS );
						$thumbimg = getimagesize( $fileout );
						$file_image_thumb_width = $thumbimg[0];
						$file_image_thumb_height = $thumbimg[1];
					}
					else {
						$vmLogger->warning( $VM_LANG->_PHPSHOP_FILES_IMAGE_RESIZE_FAILURE );
						$file_image_thumb_height = "";
						$file_image_thumb_width = "";
					}
					$fullimg = getimagesize( $tmp_filename );
					$file_image_width = $fullimg[0];
					$file_image_height = $fullimg[1];
					$filename = $tmp_filename;
				}

			}
			else {
				### File (no image) Upload ###
				$is_image = "0";
				$filename = $uploaddir . $filename;
				$file_image_height = $file_image_width = $file_image_thumb_height = $file_image_thumb_width = "";
			}
		}
		else {
			if( $d['file_type'] == "image" ) {
				$is_image = "1";
			}
			else {
				$is_image = "0";
			}
			$filename = "";
			$file_contents = "";
			$ext = "";
			$upload_success = true;
			$file_image_height = $file_image_width = $file_image_thumb_height = $file_image_thumb_width = "";
		}

		$filename = $GLOBALS['vmInputFilter']->safeSQL( $filename );
		$d["file_title"] = $GLOBALS['vmInputFilter']->safeSQL( $d["file_title"] );
		
		$q = "INSERT INTO #__{sc}_product_files ";
		$q .= "(file_product_id, file_name, file_title, file_extension, file_mimetype, file_url, file_published,";
		$q .= "file_is_image, file_image_height , file_image_width , file_image_thumb_height, file_image_thumb_width )";
		$q .= " VALUES ('".$d["product_id"]."', '$filename','".$d["file_title"] . "','$ext','".$_FILES['file_upload']['type']."', '".$d['file_url']."', '".$d["file_published"]."',";
		$q .= "'$is_image', '$file_image_height', '$file_image_width', '$file_image_thumb_height', '$file_image_thumb_width')";
		$db->setQuery($q);
		$db->query();

		return True;

	}

	/**************************************************************************
	* name: update()
	* created by: soeren
	* description: updates file information
	* parameters:
	* returns:
	**************************************************************************/
	function update( &$d ) {
		global $mosConfig_absolute_path, $mosConfig_live_site, 
			$database, $VM_LANG, $vmLogger;
		$db = new ps_DB;
		$timestamp = time();

		if (!$this->validate_update($d)) {
			return False;
		}
		if( empty( $d["file_published"] )) {
			$d["file_published"] = 0;
		}

		$is_download_attribute = false;

		$q_dl = "SELECT attribute_name,file_id from #__{sc}_product_attribute,#__{sc}_product_files WHERE ";
		$q_dl .= "product_id='".$d["product_id"]."' AND attribute_name='download' ";
		$q_dl .= "AND file_id='".$d["file_id"]."' AND attribute_value=file_title";
		$db->query($q_dl);

		if( $db->next_record() ) {
			$is_download_attribute = true;
			if( !empty($_FILES['file_upload']['name'])) {
				// new file uploaded
				$qu = "UPDATE #__{sc}_product_attribute ";
				$qu .= "SET attribute_value = '". $_FILES['file_upload']['name'] ."' ";
				$qu .= "WHERE product_id='".$d["product_id"]."' AND attribute_name='download'";
				$db->query($qu);
			}
		}
		if( empty( $d["file_create_thumbnail"] )) {
			$d["file_create_thumbnail"] = 0;
		}


		if( !empty($_FILES['file_upload']['name']) ) {

			$upload_success = false;
			$fileinfo = pathinfo( $_FILES['file_upload']['name'] );
			$ext = $fileinfo["extension"];

			if( $this->fileexists ) {
				// must rename uploaded file!
				$filename = uniqid("ren_") . $_FILES['file_upload']['name'];
			}
			else {
				$filename = $_FILES['file_upload']['name'];
			}
			switch( $d["upload_dir"] ) {
				case "IMAGEPATH":
					$uploaddir = IMAGEPATH ."product/";
					break;
				case "FILEPATH":
					$uploaddir = trim( $d["file_path"] );
					if( !file_exists($uploaddir) ) {
						@mkdir( $uploaddir );
					}
					if( !file_exists( $uploaddir ) ) {
						$GLOBALS['vmLogger']->log( $VM_LANG->_PHPSHOP_FILES_PATH_ERROR, PEAR_LOG_ERR );
						return false;
					}
					if( substr( $uploaddir, strlen($uploaddir)-1, 1) != '/') {
						$uploaddir .= '/';
					}
					break;
				case "DOWNLOADPATH":
					$uploaddir = DOWNLOADROOT;
					break;
			}
			
			if( $this->checkUploadedFile( 'file_upload' ) ) {
				$upload_success = $this->moveUploadedFile( 'file_upload', $uploaddir.$filename);
			}
			else {
				$GLOBALS['vmLogger']->log( $VM_LANG->_PHPSHOP_FILES_UPLOAD_FAILURE, PEAR_LOG_ERR );
				return false;
			}
			
			if( @$d['file_type'] == "image" ) {
				$is_image = "1";
				$d["file_url"] = IMAGEURL."product/".$_FILES['file_upload']['name'];

				$file_contents = "";

				if( $d["file_create_thumbnail"] == "1" ) {
					## RESIZE THE IMAGE ####
					require_once( CLASSPATH . "class.img2thumb.php" );
					$fileout = $uploaddir . "resized/".basename($filename, ".".$ext)."_".PSHOP_IMG_WIDTH."x".PSHOP_IMG_HEIGHT.".$ext";
					$tmp_filename = $uploaddir . $filename;
					$newxsize = PSHOP_IMG_WIDTH;
					$newysize = PSHOP_IMG_HEIGHT;
					$maxsize = 0;
					$bgred = $bggreen = $bgblue = 255;
					/* We need to resize the image and Save the new one (all done in the constructor) */
					$neu = new Img2Thumb($tmp_filename,$newxsize,$newysize,$fileout,$maxsize,$bgred,$bggreen,$bgblue);
					if( is_file( $fileout ) ) {
						$vmLogger->info( $VM_LANG->_PHPSHOP_FILES_IMAGE_RESIZE_SUCCESS );
						$thumbimg = getimagesize( $fileout );
						$file_image_thumb_width = $thumbimg[0];
						$file_image_thumb_height = $thumbimg[1];
					}
					else {
						$vmLogger->err( $VM_LANG->_PHPSHOP_FILES_IMAGE_RESIZE_FAILURE );
						$file_image_thumb_height = "";
						$file_image_thumb_width = "";
					}
					$fullimg = getimagesize( $tmp_filename );
					$file_image_width = $fullimg[0];
					$file_image_height = $fullimg[1];
					$filename = $tmp_filename;
				}

			}
			else {
				### File (no image) Upload ###
				$is_image = "0";
				$filename = $uploaddir . $filename;
				// $d['file_type'] == "file"
				$file_image_height = $file_image_width = $file_image_thumb_height = $file_image_thumb_width = "";
			}
		}
		else {
			if( $d['file_type'] == "image" ) {
				$is_image = "1";
			}
			else {
				$is_image = "0";
			}
			$filename = "";
			$file_contents = "";
			$ext = "";
			$upload_success = true;
			$file_image_height = $file_image_width = $file_image_thumb_height = $file_image_thumb_width = "";
		}

		if( !empty($_FILES['file_upload']['name']) ) {
			// Delete the old file
			$this->delete( $d );

			$q = "INSERT INTO #__{sc}_product_files SET ";
			if( !empty($_FILES['file_upload']['name'])) {
				$q .= "file_id='" . $d["file_id"] . "', ";
				$q .= "file_product_id='" . $d["product_id"] . "', ";
				$q .= "file_name='" . $filename."', ";
				$q .= "file_extension='$ext', ";
				$q .= "file_mimetype='" .$_FILES['file_upload']['type']."', ";
				$q .= "file_is_image='" . $is_image."', ";
				$q .= "file_image_height='" . $file_image_height."', ";
				$q .= "file_image_width='" . $file_image_width."', ";
				$q .= "file_image_thumb_height='" . $file_image_thumb_height."', ";
				$q .= "file_image_thumb_width='" . $file_image_thumb_width."', ";
			}
			$q .= "file_published='" . $d["file_published"]."', ";
			if( !$is_download_attribute)
			$q .= "file_title='" . $d['file_title']."', ";
			$q .= "file_url='" . $d["file_url"]."'; ";
			$db->setQuery($q);
			$db->query();
		}
		else {
			$q = "UPDATE #__{sc}_product_files SET ";
			if( !empty($_FILES['file_upload']['name'])) {
				$q .= "file_name='" . $filename."', ";
				$q .= "file_extension='$ext', ";
				$q .= "file_mimetype='" .$_FILES['file_upload']['type']."', ";
				$q .= "file_is_image='" . $is_image."', ";
				$q .= "file_image_height='" . $file_image_height."', ";
				$q .= "file_image_width='" . $file_image_width."', ";
				$q .= "file_image_thumb_height='" . $file_image_thumb_height."', ";
				$q .= "file_image_thumb_width='" . $file_image_thumb_width."', ";
			}
			if( !$is_download_attribute)
			$q .= "file_title='" . $d["file_title"]."', ";
			$q .= "file_published='" . $d["file_published"]."', ";
			$q .= "file_url='" . $d["file_url"]."' ";
			$q .= "WHERE file_id='" . $d["file_id"] . "' ";
			$q .= "AND file_product_id='" . $d["product_id"] . "' ";
			$db->setQuery($q);
			$db->query();
		}
		return True;
	}

	/**************************************************************************
	* name: delete()
	* created by: soeren
	* description: Should delete a file record and delete the file physically.
	* parameters:
	* returns:
	**************************************************************************/
	/**
	* Controller for Deleting Records.
	*/
	function delete(&$d) {

		$record_id = $d["file_id"];

		if( is_array( $record_id)) {
			foreach( $record_id as $record) {
				if( !$this->delete_record( $record, $d ))
				return false;
			}
			return true;
		}
		else {
			return $this->delete_record( $record_id, $d );
		}
	}
	/**
	* Deletes one Record.
	*/
	function delete_record( $record_id, &$d ) {

		global $VM_LANG, $vmLogger;
		$dbf = new ps_DB;

		if (!$this->validate_delete($record_id, $d)) {
			return False;
		}
		$q = "SELECT file_name,file_is_image FROM `#__{sc}_product_files` WHERE file_id='$record_id'";
		$dbf->setQuery($q);
		$dbf->query();
		$dbf->next_record();

		if( $dbf->f("file_is_image") ) {
			$info = pathinfo($dbf->f("file_name"));
			if( !@unlink(realpath($dbf->f("file_name"))) ) {
				$vmLogger->err( $VM_LANG->_PHPSHOP_FILES_FULLIMG_DELETE_FAILURE );
			}
			else {
				$vmLogger->info( $VM_LANG->_PHPSHOP_FILES_FULLIMG_DELETE_SUCCESS );
			}
			$thumb = $info["dirname"]."/resized/".basename($dbf->f("file_name"), ".".$info["extension"])."_".PSHOP_IMG_WIDTH."x".PSHOP_IMG_HEIGHT.".".$info["extension"];
			if( !@unlink( realpath($thumb) ) ) {
				$vmLogger->err( $VM_LANG->_PHPSHOP_FILES_THUMBIMG_DELETE_FAILURE." ". $thumb );
			}
			else {
				$vmLogger->info( $VM_LANG->_PHPSHOP_FILES_THUMBIMG_DELETE_SUCCESS );
			}
		}
		elseif( $dbf->f("file_name") ) {
			if( !@unlink(realpath($dbf->f("file_name"))) ) {
				$vmLogger->err( $VM_LANG->_PHPSHOP_FILES_FILE_DELETE_FAILURE );
			}
			else {
				$vmLogger->info( $VM_LANG->_PHPSHOP_FILES_FILE_DELETE_SUCCESS );
			}
		}

		$q = "DELETE FROM #__{sc}_product_files WHERE file_id='$record_id'";
		$dbf->setQuery($q);
		$dbf->query();

		return True;
	}

	/**************************************************************************
	* name: get_file_list()
	* created by: soeren
	* description: List all published and non-payable files ( not images! )
	* parameters:
	* returns:
	**************************************************************************/
	function get_file_list( $product_id ) {
		global $sess;
		$dbf = new ps_DB;
		$html = "";
		$sql = 'SELECT attribute_value FROM #__{sc}_product_attribute WHERE `product_id` = \''.$product_id.'\' AND attribute_name=\'download\'';
		$dbf->query( $sql );
		$dbf->next_record();
		$exclude_filename = $GLOBALS['vmInputFilter']->safeSQL( $dbf->f( "attribute_value" ) );
		$sql = 'SELECT DISTINCT file_id, file_mimetype, file_title, file_name'
			. ' FROM `#__{sc}_product_files` WHERE ';
		if( $exclude_filename ) {
			$sql .= ' file_title != \''.$exclude_filename.'\' AND ';
		}
		$sql .= 'file_product_id = \''.$product_id.'\' AND file_published = \'1\' AND file_is_image = \'0\'';
		$dbf->setQuery($sql);
		$dbf->query();

		while( $dbf->next_record() ) {
			$filesize = @filesize($dbf->f("file_name")) / 1048000;
			if( $filesize > 0.5) {
				$filesize_display = ' ('. number_format( $filesize, 2,',','.')." MB)";
			}
			else {
				$filesize_display = ' ('. number_format( $filesize*1024, 2,',','.')." KB)";
			}
			// Show pdf in a new Window, other file types will be offered as download
			$target = stristr($dbf->f("file_mimetype"), "pdf") ? "_blank" : "_self";
			$link = $sess->url( $_SERVER['PHP_SELF'].'?page=shop.getfile&amp;file_id='.$dbf->f("file_id")."&amp;product_id=$product_id" );
			$html .= "<a target=\"$target\" href=\"$link\" title=\"".$dbf->f("file_title")."\">\n";
			$html .= $dbf->f("file_title") . $filesize_display. "</a><br/>\n" ;
		}
		return $html;
	}

	/**************************************************************************
	* name: send_file()
	* created by: soeren
	* description:
	* Sends the requested file to the browser
	* and assures that the requested file is no payable product download file
	* parameters:
	* returns:
	**************************************************************************/
	function send_file( $file_id, $product_id ) {
		global $VM_LANG, $vmLogger;
		$dbf = new ps_DB;
		$html = "";
		
		$sql = 'SELECT attribute_value FROM #__{sc}_product_attribute WHERE `product_id` = \''.$product_id.'\' AND attribute_name=\'download\'';
		$dbf->query( $sql );
		$dbf->next_record();
		$exclude_filename = $GLOBALS['vmInputFilter']->safeSQL( $dbf->f( "attribute_value" ) );
		
		$sql = 'SELECT file_mimetype, file_name'
		. ' FROM `#__{sc}_product_files` WHERE ';
		if( $exclude_filename ) {
			$sql .= ' file_title != \''.$exclude_filename.'\' AND ';
		}
		$sql .= ' file_product_id = \''.$product_id.'\' AND file_published = \'1\' AND file_id = \''.$file_id.'\' AND file_is_image = \'0\'';
		
		$dbf->setQuery($sql);
		$dbf->query();
		if( $dbf->next_record() && is_readable($dbf->f("file_name") ) ) {
			// dump anything in the buffer
			while( @ob_end_clean() );

			header('Content-Type: ' . $dbf->f("file_mimetype"));
			
			$ext = $dbf->f('file_extension');
			if(!stristr($dbf->f("file_mimetype"), "pdf") && $ext != 'pdf') {
				header('Content-Disposition: attachment; filename="' . basename($dbf->f("file_name")) . '"');
			}
			/*** Now send the file!! ***/
			readfile( $dbf->f("file_name") );

			exit();
		}
		else {
			$vmLogger->err( $VM_LANG->_PHPSHOP_FILES_NOT_FOUND );
		}
		return true;
	}
	/**
	 * Checks if a file was correctly uploaded.
	 *
	 * @param string $fieldname The name of the index in $_FILES to check
	 * @return boolean True when the file upload is correct, false when not.
	 */
	function checkUploadedFile( $fieldname ) {
		global $vars, $vmLogger;
		if( (!is_uploaded_file( @$_FILES[$fieldname]['tmp_name']) && strstr( $fieldname, 'thumb')
			|| substr( @$_REQUEST[$fieldname.'_url'], 0, 4 ) == 'http' )) {
			return true;
		}
		elseif( is_uploaded_file(@$_FILES[$fieldname]['tmp_name'])) {
			return true;
		}
		else {
			switch( @$_FILES[$fieldname]['error'] ){
				case 0: //no error; possible file attack!
					//$vmLogger->warning( "There was a problem with your upload." );
					break;
				case 1: //uploaded file exceeds the upload_max_filesize directive in php.ini
					$vmLogger->warning( "The file you are trying to upload is too big." );
					break;
				case 2: //uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the html form
					$vmLogger->warning( "The file you are trying to upload is too big." );
					break;
				case 3: //uploaded file was only partially uploaded
					$vmLogger->warning( "The file you are trying upload was only partially uploaded." );
					break;
				case 4: //no file was uploaded
					//$vmLogger->warning( "You have not selected a file/image for upload." );
					break;
				default: //a default error, just in case!  :)
					//$vmLogger->warning( "There was a problem with your upload." );
					break;
			}
			
			return false;
		}
	}
	/**
	 * Moves an uploaded file $_FILES[$fieldname] to $storefilename
	 *
	 * @param string $fieldname The array index of the _FILES array
	 * @param string $storefilename The full path including filename to the store path
	 */
	function moveUploadedFile( $fieldname, $storefilename ) {
		if( !is_uploaded_file( $_FILES[$fieldname]['tmp_name'] )) {
			return true;
		}
		if( move_uploaded_file( $_FILES[$fieldname]['tmp_name'], $storefilename )) {
			chmod( $storefilename, 0644 );
			return true;
		}
		else {
			return false;
		}
	}
	
	
	function createThumbImage( $from ) {
		//	Class for resizing Thumbnails
		require_once( CLASSPATH . "class.img2thumb.php");

		/* Generate Image Destination File Name */
		$to_file_thumb = md5(uniqid("SupaCart"));
		$fileout = IMAGEPATH."/product/resized/".$to_file_thumb;
		$Img2Thumb = new Img2Thumb( $from, PSHOP_IMG_WIDTH, PSHOP_IMG_HEIGHT, $fileout, 0, 255, 255, 255 );
		
		return $Img2Thumb->fileout;
			
	}
	
	function getRemoteFile( $url ) {
			@ini_set( "allow_url_fopen");
			$remote_fetching = ini_get( "allow_url_fopen");
			if( $remote_fetching ) {
				$handle = fopen( $url , "rb" );
				$data = "";
				if( $handle === false ) {
					return false;
				}
				while( !feof( $handle )) {
					$data .= fread( $handle, 4096 );
				}
				fclose( $handle );
				$tmp_file = tempnam(IMAGEPATH."/product/", "FOO");
				$handle = fopen($tmp_file, "wb");
				fwrite($handle, $data);
				fclose($handle);
				
				return $tmp_file;
				
			}
			else {
				return false;
			}
	}
	
	function isImage( $type, $file ) {
	
		switch($type) {
			case "image/gif":
			case "image/jpeg":
			case "image/png":
				return true;
				
			default:
			$image_info = getimagesize($file);
			switch($image_info[2]) {
				case 1:
				case 2:
				case 3:
					return true;
				default:
					return false;
			}
		}
	}
}
?>