image.php

<?php
/* vim:set tabstop=8 softtabstop=8 shiftwidth=8 noexpandtab: */
/*

 Copyright (c) Ampache.org
 All rights reserved.

 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License v2
 as published by the Free Software Foundation.

 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.

*/
/**
 * Album Art
 * This pulls album art out of the file using the getid3 library
 * and dumps it to the browser as an image mime type.
 *
 */

// This file is a little weird it needs to allow API session
// this needs to be done a little better, but for now... eah
define('NO_SESSION','1');
require 'lib/init.php';

// Check to see if they've got an interface session or a valid API session, if not GTFO
if (!vauth::session_exists('interface',$_COOKIE[Config::get('session_name')]) AND !vauth::session_exists('api',$_REQUEST['auth']) AND !vauth::session_exists('xml-rpc',$_REQUEST['auth'])) {
	debug_event('DENIED','Image Access, Checked Cookie Session:' . $_COOKIE[Config::get('session_name')] . ' and Auth:' . $_REQUEST['auth'],'1');
	exit;
}

// If we aren't resizing just trash thumb
if (!Config::get('resize_images')) { unset($_GET['thumb']); } 

// FIXME: Legacy stuff - should be removed after a version or so
if (!$_GET['object_type']) { 
	$_GET['object_type'] = 'album'; 
} 

$type = Art::validate_type($_GET['object_type']); 

/* Decide what size this image is */
switch ($_GET['thumb']) {
	case '1':
		/* This is used by the now_playing stuff */
		$size['height'] = '75';
		$size['width']	= '75';
	break;
	case '2':
		$size['height']	= '128';
		$size['width']	= '128';
	break;
	case '3':
		/* This is used by the flash player */
		$size['height']	= '80';
		$size['width']	= '80';
	break;
	default:
		$size['height'] = '275';
		$size['width']	= '275';
		if (!isset($_GET['thumb'])) { $return_raw = true; }
	break;
} // define size based on thumbnail

switch ($_GET['type']) {
	case 'popup':
		require_once Config::get('prefix') . '/templates/show_big_art.inc.php';
	break;
	// If we need to pull the data out of the session
	case 'session':
		vauth::check_session();
		$key = scrub_in($_REQUEST['image_index']);
		$image = Art::get_from_source($_SESSION['form']['images'][$key]);
		$mime = $_SESSION['form']['images'][$key]['mime'];
		$data = explode("/",$mime);
		$extension = $data['1'];

                // Send the headers and output the image
                header("Expires: Sun, 19 Nov 1978 05:00:00 GMT");
                header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
                header("Cache-Control: no-store, no-cache, must-revalidate");
                header("Pragma: no-cache");
		header("Content-type: $mime");
		header("Content-Disposition: filename=" . $key . "." . $extension);
		echo $image;
	break;
	default:
		$media = new $type($_GET['id']); 
		$art = new Art($media->id,$type); 
		$art->get_db();  
		
		if (!$art->raw_mime) { 
			header('Content-type: image/jpeg');
			readfile(Config::get('prefix') . Config::get('theme_path') . '/images/blankalbum.jpg');
			break;
		} // else no image
		
		if ($_GET['thumb']) {
			$thumb_data = $art->get_thumb($size);
		}
				
		$mime = $thumb_data ? $thumb_data['thumb_mime'] : $art->raw_mime; 	
		$source = $thumb_data ? $thumb_data['thumb'] : $art->raw; 
		$extension = Art::extension($mime); 
		
		// Send the headers and output the image
                header("Expires: Tue, 27 Mar 1984 05:00:00 GMT");
                header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
                header("Cache-Control: no-store, no-cache, must-revalidate");
                header("Pragma: no-cache");
		header("Content-type: $mime");
		header("Content-Disposition: filename=" . scrub_out($media->name) . "." . $extension);
		echo $source;

	break;
} // end switch type

?>