/**
* Invoke
*
* @return void
*/
public function __invoke(Request $request, Response $response, callable $next)
{
$config = $request->getRoute()->getMiddlewareConfig('validation');
$input = $request->getMethod() === 'GET' ? $request->getQueryParams() : $request->getParams();
try {
$validator = $this->getValidator($config);
$validator->assert($input);
} catch (NestedValidationException $validation_exception) {
$exception = new HttpMessagesException('Validation error.');
$exception->setErrors($validation_exception->getMessages());
$exception->setInput($input);
throw $exception;
}
$response = $next($request, $response);
return $response;
}
/**
* Get Serializer
*
* @param Request $request Request
*
* @return Serializer Serializer
*/
private function getSerializer(Request $request)
{
$serializers = \Craft\craft()->config->get('serializers', 'HttpMessagesFractalMiddleware');
$default_serializer = \Craft\craft()->config->get('defaultSerializer', 'HttpMessagesFractalMiddleware');
if (!isset($serializers[$default_serializer])) {
$exception = new HttpMessagesException();
$exception->setMessage(sprintf('The default serializer `%s` does not exist.', $default_serializer));
throw $exception;
}
$serializer = $serializers[$default_serializer];
return new $serializer();
}
/**
* Get Element Permissions
*
* @param string $element_type Element Type
*
* @return array Element Permissions
*/
public function getElementPermissions($element_type)
{
$element_permissions = $this->getElementTypeConfig($element_type, 'permissions');
if (!$element_permissions) {
$element_permissions = $this->getElementPermissions('*');
}
if (!$element_permissions) {
$exception = new HttpMessagesException();
$exception->withStatus(415)->setMessage(sprintf('Permissions for the `%s` element type is not defined.', $element_type));
throw $exception;
}
return $element_permissions;
}
/**
* Get Action
*
* @param string $method Method
* @param string $element_type Element Type
* @param boolean $element_id Element Id
*
* @return string Action
*/
private function getAction($method, $element_type, $element_id = null)
{
if ($method === 'GET' && !$element_id) {
return 'actionIndex';
}
if ($method === 'GET' && $element_id) {
return 'actionShow';
}
if ($method === 'POST' && !$element_id) {
return 'actionStore';
}
if (in_array($method, ['PUT', 'PATCH']) && $element_id) {
return 'actionUpdate';
}
if ($method === 'DELETE' && $element_id) {
return 'actionDelete';
}
$exception = new HttpMessagesException();
$exception->setStatus(405)->setMessage(sprintf('`%s` method not allowed for resource `%s`.', $method, $element_type));
throw $exception;
}