Yuri Kuznetsov
90 lines
3.4 KiB
PHP
90 lines
3.4 KiB
PHP
<?php
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/************************************************************************
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* This file is part of EspoCRM.
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*
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* EspoCRM - Open Source CRM application.
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* Copyright (C) 2014-2023 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
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* Website: https://www.espocrm.com
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*
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* EspoCRM is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* EspoCRM is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with EspoCRM. If not, see http://www.gnu.org/licenses/.
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*
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* The interactive user interfaces in modified source and object code versions
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* of this program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU General Public License version 3.
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*
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* In accordance with Section 7(b) of the GNU General Public License version 3,
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* these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
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************************************************************************/
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namespace Espo\Tools\Api\Cors;
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use Fig\Http\Message\RequestMethodInterface as RequestMethod;
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use Psr\Http\Message\ResponseInterface as Response;
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use Psr\Http\Message\ServerRequestInterface as ServerRequest;
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use Psr\Http\Server\MiddlewareInterface;
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use Psr\Http\Server\RequestHandlerInterface as RequestHandler;
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use Slim\Psr7\Factory\ResponseFactory;
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class Middleware implements MiddlewareInterface
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{
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private const DEFAULT_SUCCESS_STATUS = 204;
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private const DEFAULT_MAX_AGE = 86400;
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public function __construct(private Helper $helper)
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{}
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public function process(ServerRequest $request, RequestHandler $handler): Response
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{
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$isPreFlight = $request->getMethod() === RequestMethod::METHOD_OPTIONS;
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$response = $isPreFlight ?
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(new ResponseFactory)->createResponse() :
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$handler->handle($request);
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$allowedOrigin = $this->helper->getAllowedOrigin($request);
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if (!$allowedOrigin) {
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return $response;
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}
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$status = $this->helper->getSuccessStatus() ?? self::DEFAULT_SUCCESS_STATUS;
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$allowedMethods = $this->helper->getAllowedMethods($request);
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$allowedHeaders = $this->helper->getAllowedHeaders($request);
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$maxAge = $this->helper->getMaxAge() ?? self::DEFAULT_MAX_AGE;
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$credentialsAllowed = $this->helper->isCredentialsAllowed($request);
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$response = $response
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->withHeader('Access-Control-Allow-Origin', $allowedOrigin)
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->withHeader('Access-Control-Max-Age', (string) $maxAge);
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if ($credentialsAllowed) {
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$response = $response->withHeader('Access-Control-Allow-Credentials', 'true');
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}
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if (!$isPreFlight) {
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return $response;
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}
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if ($allowedMethods !== []) {
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$response = $response->withHeader('Access-Control-Allow-Methods', implode(', ', $allowedMethods));
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}
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if ($allowedHeaders !== []) {
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$response = $response->withHeader('Access-Control-Allow-Headers', implode(', ', $allowedHeaders));
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}
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return $response->withStatus($status);
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}
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}
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