/**
* Handle a request for a file
*
* @param Request $request HTTP request
* @return Response
*/
public function getResponse(Request $request)
{
$response = new Response();
$response->prepare($request);
$path = implode('/', $request->getUrlSegments());
if (!preg_match('~serve-file/e(\\d+)/l(\\d+)/d([ia])/c([01])/([a-zA-Z0-9\\-_]+)/(.*)$~', $path, $m)) {
return $response->setStatusCode(400)->setContent('Malformatted request URL');
}
list(, $expires, $last_updated, $disposition, $use_cookie, $mac, $path_from_dataroot) = $m;
if ($expires && $expires < time()) {
return $response->setStatusCode(403)->setContent('URL has expired');
}
$hmac_data = array('expires' => (int) $expires, 'last_updated' => (int) $last_updated, 'disposition' => $disposition, 'path' => $path_from_dataroot, 'use_cookie' => (int) $use_cookie);
if ((bool) $use_cookie) {
$hmac_data['cookie'] = $this->getCookieValue($request);
}
ksort($hmac_data);
$hmac = $this->crypto->getHmac($hmac_data);
if (!$hmac->matchesToken($mac)) {
return $response->setStatusCode(403)->setContent('HMAC mistmatch');
}
$dataroot = $this->config->getDataPath();
$filenameonfilestore = "{$dataroot}{$path_from_dataroot}";
if (!is_readable($filenameonfilestore)) {
return $response->setStatusCode(404)->setContent('File not found');
}
$actual_last_updated = filemtime($filenameonfilestore);
if ($actual_last_updated != $last_updated) {
return $response->setStatusCode(403)->setContent('URL has expired');
}
$if_none_match = $request->headers->get('if_none_match');
if (!empty($if_none_match)) {
// strip mod_deflate suffixes
$request->headers->set('if_none_match', str_replace('-gzip', '', $if_none_match));
}
$etag = '"' . $actual_last_updated . '"';
$response->setPublic()->setEtag($etag);
if ($response->isNotModified($request)) {
return $response;
}
$public = $use_cookie ? false : true;
$content_disposition = $disposition == 'i' ? 'inline' : 'attachment';
$headers = ['Content-Type' => (new MimeTypeDetector())->getType($filenameonfilestore)];
$response = new BinaryFileResponse($filenameonfilestore, 200, $headers, $public, $content_disposition);
$sendfile_type = $this->config->getVolatile('X-Sendfile-Type');
if ($sendfile_type) {
$request->headers->set('X-Sendfile-Type', $sendfile_type);
$mapping = (string) $this->config->getVolatile('X-Accel-Mapping');
$request->headers->set('X-Accel-Mapping', $mapping);
$response->trustXSendfileTypeHeader();
}
$response->prepare($request);
if (empty($expires)) {
$expires = strtotime('+1 year');
}
$expires_dt = (new DateTime())->setTimestamp($expires);
$response->setExpires($expires_dt);
$response->setEtag($etag);
return $response;
}
/**
* Build an unprepared menu.
*
* @param string $name Menu name
* @param array $params Hook/view parameters
*
* @return UnpreparedMenu
*/
public function getUnpreparedMenu($name, array $params = [])
{
$menus = $this->config->getVolatile('menus');
$items = $this->prepareMenuItems(elgg_extract('items', $params, []));
unset($params['items']);
if ($menus && isset($menus[$name])) {
$registered_items = elgg_extract($name, $menus, []);
$items = array_merge($items, $registered_items);
}
$params['name'] = $name;
$params = $this->hooks->trigger('parameters', "menu:{$name}", $params, $params);
if (!isset($params['sort_by'])) {
$params['sort_by'] = 'priority';
}
$items = $this->hooks->trigger('register', "menu:{$name}", $params, $items);
return new UnpreparedMenu($params, $items);
}
/**
* Initializes the simplecache lastcache variable and creates system cache files
* when appropriate.
*
* @access private
*/
function init()
{
if (!$this->isEnabled()) {
return;
}
// cache system data if enabled and not loaded
if (!$this->config->getVolatile('system_cache_loaded')) {
$this->save('view_types', serialize($GLOBALS['_ELGG']->view_types));
_elgg_services()->views->cacheConfiguration($this);
}
if (!$GLOBALS['_ELGG']->i18n_loaded_from_cache) {
_elgg_services()->translator->reloadAllTranslations();
foreach ($GLOBALS['_ELGG']->translations as $lang => $map) {
$this->save("{$lang}.lang", serialize($map));
}
}
}
