Files
moodle/lib/classes/router/middleware/validation_middleware.php
2024-08-06 16:01:07 +08:00

73 lines
2.8 KiB
PHP

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
namespace core\router\middleware;
use core\router\request_validator_interface;
use core\router\response_handler;
use core\router\response_validator_interface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
/**
* Middleware to handle validation of request and response based on the route data.
*
* @package core
* @copyright 2024 Andrew Lyons <andrew@nicols.co.uk>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class validation_middleware implements MiddlewareInterface {
/**
* Create a new instance of the validation middleware.
*
* @param response_handler $responsehandler A handler to standardise a response
* @param request_validator_interface $requestvalidator A request validator
* @param response_validator_interface $responsevalidator A response validator
*/
public function __construct(
/** @var response_handler A handler to standardise a response */
protected response_handler $responsehandler,
/** @var request_validator_interface The request validator used to validate incoming data */
protected request_validator_interface $requestvalidator,
/** @var response_validator_interface The response validator used to validate incoming data */
protected response_validator_interface $responsevalidator,
) {
}
#[\Override]
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface {
try {
$request = $this->requestvalidator->validate_request($request);
} catch (\Exception $e) {
return $this->responsehandler->get_response_from_exception($request, $e);
}
$response = $handler->handle($request);
try {
$this->responsevalidator->validate_response($request, $response);
} catch (\Exception $e) {
return $this->responsehandler->get_response_from_exception($request, $e);
}
return $response;
}
}