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getfile.php
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getfile.php
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<?php
/**
* Licensed to The Apereo Foundation under one or more contributor license
* agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership.
* The Apereo Foundation licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
require_once(dirname(__FILE__) . "/config.php");
require $xerte_toolkits_site->php_library_path . "user_library.php";
require $xerte_toolkits_site->php_library_path . "template_library.php";
require $xerte_toolkits_site->php_library_path . "template_status.php";
// be slightly paranoid over the path the user is requesting to download.
$unsafe_file_path = $_GET['file'];
if(!preg_match('/^([0-9]+)-([a-z0-9]+)-/', $unsafe_file_path, $matches)) {
die("path must start with a number, and then a username - e.g. 20-foobar-");
}
$template_id = $matches[1];
$username = $matches[2];
$has_perms = is_user_admin() || has_rights_to_this_template($template_id,$_SESSION['toolkits_logon_id']);
if($has_perms) {
if(is_user_an_editor($template_id,$_SESSION['toolkits_logon_id'])){
if($username == $_SESSION['toolkits_logon_username']) {
// they're logged in, and hopefully have access to the media contents.
$file = dirname(__FILE__) . '/USER-FILES/' . $unsafe_file_path;
if(!is_file($file)) {
die("Fail: file not found on disk");
}
$filename = addslashes(basename($file));
header("Cache-Control: public");
header("Content-Length: " . filesize($file));
header("Content-Description: File Transfer");
header("Content-Type: application/force-download");
header("Content-Disposition: attachment; filename=\"$filename\"");
header("Content-Transfer-Encoding: binary");
flush();
readfile($file);
exit(0);
}
}
}
echo "You do not appear to have permission to view this resource.";