/**
* 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 $response;
}
/**
* Returns the path to where views are simplecached.
*
* @return string
*/
private function getPath()
{
return realpath($this->config->getDataPath() . "/views_simplecache");
}
