/**
* @param string $name Name of the route
* @param array $params Parameters for the link
* @param array|Traversable $options Options for the route
* @param bool $reuseMatchedParams Whether to reuse matched parameters
* @return string Url For the link href attribute
*/
public function __invoke($name = null, $params = [], $options = [], $reuseMatchedParams = false)
{
$referer = $this->request->getHeader('Referer');
if ($referer) {
$refererUrl = $referer->uri()->getPath();
// referer url
$refererHost = $referer->uri()->getHost();
// referer host
$host = $this->request->getUri()->getHost();
// current host
// only redirect to previous page if request comes from same host
if ($refererUrl && $refererHost == $host) {
return $refererUrl;
}
}
// redirect to home if no referer or from another page
return $this->view->url($name, $params, $options, $reuseMatchedParams);
}
/**
* Check request content-type header to require JSON for methods with payloads.
*
* @param Request $request
* @throws Exception\UnsupportedMediaTypeException
*/
protected function checkContentType(Request $request)
{
// Require application/json Content-Type for certain methods.
$method = strtolower($request->getMethod());
$contentType = $request->getHeader('content-type');
if (in_array($method, ['post', 'put', 'patch']) && !$contentType->match(['application/json', 'multipart/form-data'])) {
$contentType = $request->getHeader('Content-Type');
$errorMessage = sprintf('Invalid Content-Type header. Expecting "application/json", got "%s".', $contentType ? $contentType->getMediaType() : 'none');
throw new Exception\UnsupportedMediaTypeException($errorMessage);
}
}