<?php
/**
- * StatusNet, the distributed open-source microblogging tool
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2009, StatusNet, Inc.
*
- * Returns a given file attachment, allowing private sites to only allow
- * access to file attachments after login.
+ * Return a requested file
*
* PHP version 5
*
- * LICENCE: This program is free software: you can redistribute it and/or modify
+ * This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
- * @category Personal
+ * @category PrivateAttachments
* @package StatusNet
* @author Jeffery To <jeffery.to@gmail.com>
- * @copyright 2008-2009 StatusNet, Inc.
- * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @copyright 2009 StatusNet, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
-if (!defined('STATUSNET') && !defined('LACONICA')) {
- exit(1);
-}
-
-require_once 'MIME/Type.php';
+if (!defined('GNUSOCIAL')) { exit(1); }
/**
- * Action for getting a file attachment
+ * An action for returning a requested file
+ *
+ * The StatusNet system will do an implicit user check if the site is
+ * private before allowing this to continue
*
- * @category Personal
- * @package StatusNet
- * @author Jeffery To <jeffery.to@gmail.com>
- * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
- * @link http://status.net/
+ * @category PrivateAttachments
+ * @package StatusNet
+ * @author Jeffery To <jeffery.to@gmail.com>
+ * @copyright 2009 StatusNet, Inc.
+ * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
+ * @link http://status.net/
*/
-
class GetfileAction extends Action
{
/**
* Path of file to return
*/
-
var $path = null;
/**
*
* @return success flag
*/
-
- function prepare($args)
+ protected function prepare(array $args=array())
{
parent::prepare($args);
$filename = $this->trimmed('filename');
$path = null;
- if ($filename) {
- $path = common_config('attachments', 'dir') . $filename;
+ if ($filename && File::validFilename($filename)) {
+ $path = File::path($filename);
}
if (empty($path) or !file_exists($path)) {
+ // TRANS: Client error displayed when requesting a non-existent file.
$this->clientError(_('No such file.'), 404);
- return false;
}
if (!is_readable($path)) {
+ // TRANS: Client error displayed when requesting a file without having read access to it.
$this->clientError(_('Cannot read file.'), 403);
- return false;
}
$this->path = $path;
*
* @return boolean true
*/
-
function isReadOnly($args)
{
return true;
*
* @return int last-modified date as unix timestamp
*/
-
function lastModified()
{
+ if (common_config('site', 'use_x_sendfile')) {
+ return null;
+ }
+
return filemtime($this->path);
}
*/
function etag()
{
+ if (common_config('site', 'use_x_sendfile')) {
+ return null;
+ }
+
+ $cache = Cache::instance();
+ if($cache) {
+ $key = Cache::key('attachments:etag:' . $this->path);
+ $etag = $cache->get($key);
+ if($etag === false) {
+ $etag = crc32(file_get_contents($this->path));
+ $cache->set($key,$etag);
+ }
+ return $etag;
+ }
+
$stat = stat($this->path);
return '"' . $stat['ino'] . '-' . $stat['size'] . '-' . $stat['mtime'] . '"';
}
/**
* Handle input, produce output
*
- * @param array $args $_REQUEST contents
- *
* @return void
*/
-
- function handle($args)
+ protected function handle()
{
// undo headers set by PHP sessions
$sec = session_cache_expire() * 60;
header('Expires: ' . date(DATE_RFC1123, time() + $sec));
- header('Cache-Control: public, max-age=' . $sec);
- header('Pragma: public');
+ header('Cache-Control: max-age=' . $sec);
- parent::handle($args);
+ parent::handle();
$path = $this->path;
- header('Content-Type: ' . MIME_Type::autoDetect($path));
- readfile($path);
+
+ $finfo = new finfo(FILEINFO_MIME_TYPE);
+
+ header('Content-Type: ' . $finfo->file($path));
+
+ if (common_config('site', 'use_x_sendfile')) {
+ header('X-Sendfile: ' . $path);
+ } else {
+ header('Content-Length: ' . filesize($path));
+ readfile($path);
+ }
}
}