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<?php
// +-----------------------------------------------------------------------+
// | Piwigo - a PHP based picture gallery |
// +-----------------------------------------------------------------------+
// | Copyright(C) 2008-2010 Piwigo Team http://piwigo.org |
// | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net |
// | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick |
// +-----------------------------------------------------------------------+
// | 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 |
// | |
// | 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. |
// +-----------------------------------------------------------------------+
define('PHPWG_ROOT_PATH','./');
include_once(PHPWG_ROOT_PATH.'include/common.inc.php');
// Check Access and exit when user status is not ok
check_status(ACCESS_GUEST);
function guess_mime_type($ext)
{
switch ( strtolower($ext) )
{
case "jpe": case "jpeg":
case "jpg": $ctype="image/jpeg"; break;
case "png": $ctype="image/png"; break;
case "gif": $ctype="image/gif"; break;
case "tiff":
case "tif": $ctype="image/tiff"; break;
case "txt": $ctype="text/plain"; break;
case "html":
case "htm": $ctype="text/html"; break;
case "xml": $ctype="text/xml"; break;
case "pdf": $ctype="application/pdf"; break;
case "zip": $ctype="application/zip"; break;
case "ogg": $ctype="application/ogg"; break;
default: $ctype="application/octet-stream";
}
return $ctype;
}
function do_error( $code, $str )
{
set_status_header( $code );
echo $str ;
exit();
}
if (!isset($_GET['id'])
or !is_numeric($_GET['id'])
or !isset($_GET['part'])
or !in_array($_GET['part'], array('t','e','i','h') ) )
{
do_error(400, 'Invalid request - id/part');
}
$query = '
SELECT * FROM '. IMAGES_TABLE.'
WHERE id='.$_GET['id'].'
;';
$result = pwg_query($query);
$element_info = pwg_db_fetch_assoc($result);
if ( empty($element_info) )
{
do_error(404, 'Requested id not found');
}
// $filter['visible_categories'] and $filter['visible_images']
// are not used because it's not necessary (filter <> restriction)
$query='
SELECT id
FROM '.CATEGORIES_TABLE.'
INNER JOIN '.IMAGE_CATEGORY_TABLE.' ON category_id = id
WHERE image_id = '.$_GET['id'].'
'.get_sql_condition_FandF(
array(
'forbidden_categories' => 'category_id',
'forbidden_images' => 'image_id',
),
' AND'
).'
LIMIT 1
;';
if ( pwg_db_num_rows(pwg_query($query))<1 )
{
do_error(401, 'Access denied');
}
include_once(PHPWG_ROOT_PATH.'include/functions_picture.inc.php');
$file='';
switch ($_GET['part'])
{
case 't':
$file = get_thumbnail_path($element_info);
break;
case 'e':
$file = get_element_path($element_info);
break;
case 'i':
$file = get_image_path($element_info);
break;
case 'h':
if ( $user['enabled_high']!='true' )
{
do_error(401, 'Access denied h');
}
$file = get_high_path($element_info);
break;
}
if ( empty($file) )
{
do_error(404, 'Requested file not found');
}
if ($_GET['part'] == 'h') {
pwg_log($_GET['id'], 'high');
}
else if ($_GET['part'] == 'e')
{
pwg_log($_GET['id'], 'other');
}
$http_headers = array();
$ctype = null;
if (!url_is_remote($file))
{
if ( !@is_readable($file) )
{
do_error(404, "Requested file not found - $file");
}
$http_headers[] = 'Content-Length: '.@filesize($file);
if ( function_exists('mime_content_type') )
{
$ctype = mime_content_type($file);
}
$gmt_mtime = gmdate('D, d M Y H:i:s', filemtime($file)).' GMT';
$http_headers[] = 'Last-Modified: '.$gmt_mtime;
// following lines would indicate how the client should handle the cache
/* $max_age=300;
$http_headers[] = 'Expires: '.gmdate('D, d M Y H:i:s', time()+$max_age).' GMT';
// HTTP/1.1 only
$http_headers[] = 'Cache-Control: private, must-revalidate, max-age='.$max_age;*/
if ( isset( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) )
{
set_status_header(304);
foreach ($http_headers as $header)
{
header( $header );
}
exit();
}
}
if (!isset($ctype))
{ // give it a guess
$ctype = guess_mime_type( get_extension($file) );
}
$http_headers[] = 'Content-Type: '.$ctype;
if (!isset($_GET['view']))
{
$http_headers[] = 'Content-Disposition: attachment; filename="'.$element_info['file'].'";';
$http_headers[] = 'Content-Transfer-Encoding: binary';
}
else
{
$http_headers[] = 'Content-Disposition: inline; filename="'
.basename($file).'";';
}
foreach ($http_headers as $header)
{
header( $header );
}
// Looking at the safe_mode configuration for execution time
if (ini_get('safe_mode') == 0)
{
@set_time_limit(0);
}
@readfile($file);
?>
|
