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<?php |
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declare(strict_types=1); |
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/** |
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* Caridea |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not |
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* use this file except in compliance with the License. You may obtain a copy of |
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* the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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* License for the specific language governing permissions and limitations under |
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* the License. |
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* |
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* @copyright 2015-2017 Appertly |
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* @copyright 2017-2018 LibreWorks contributors |
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* @license Apache-2.0 |
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*/ |
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namespace Caridea\Http; |
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use Psr\Http\Message\ServerRequestInterface as Request; |
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use Psr\Http\Message\ResponseInterface as Response; |
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use Caridea\Http\PaginationFactory; |
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/** |
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* Controller trait with some handy methods. |
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*/ |
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trait MessageHelper |
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{ |
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/** |
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* Gets an associative array of the request body content. |
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* |
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* @param \Psr\Http\Message\ServerRequestInterface $request The request |
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* @return array<string,mixed> The associative array of request body content |
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*/ |
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protected function getParsedBodyArray(Request $request): array |
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{ |
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$body = $request->getParsedBody(); |
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return is_array($body) ? $body : []; |
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} |
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/** |
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* Cleanly writes the body to the response. |
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* |
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* @param \Psr\Http\Message\ResponseInterface $response The HTTP response |
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* @param mixed $body The body to write |
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* @return \Psr\Http\Message\ResponseInterface The same or new response |
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*/ |
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protected function write(Response $response, $body): Response |
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{ |
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$response->getBody()->write((string) $body); |
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return $response; |
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} |
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/** |
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* Checks the `If-Modified-Since` header, maybe sending 304 Not Modified. |
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* |
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* @param \Psr\Http\Message\ServerRequestInterface $request The HTTP request |
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* @param \Psr\Http\Message\ResponseInterface $response The HTTP response |
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* @param int $timestamp The timestamp for comparison |
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* @return \Psr\Http\Message\ResponseInterface The same or new response |
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*/ |
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protected function ifModSince(Request $request, Response $response, int $timestamp): Response |
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{ |
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$ifModSince = $request->getHeaderLine('If-Modified-Since'); |
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if ($ifModSince && $timestamp <= strtotime($ifModSince)) { |
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return $response->withStatus(304, "Not Modified"); |
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} |
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return $response; |
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} |
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/** |
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* Checks the `If-None-Match` header, maybe sending 304 Not Modified. |
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* |
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* @param \Psr\Http\Message\ServerRequestInterface $request The HTTP request |
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* @param \Psr\Http\Message\ResponseInterface $response The HTTP response |
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* @param string $etag The ETag for comparison |
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* @return \Psr\Http\Message\ResponseInterface The same or new response |
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*/ |
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protected function ifNoneMatch(Request $request, Response $response, string $etag): Response |
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{ |
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$ifNoneMatch = $request->getHeaderLine('If-None-Match'); |
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if ($ifNoneMatch && $etag === $ifNoneMatch) { |
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return $response->withStatus(304, "Not Modified"); |
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} |
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return $response; |
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} |
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/** |
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* Redirects the user to another URL. |
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* |
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* @param \Psr\Http\Message\ResponseInterface $response The HTTP response |
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* @return \Psr\Http\Message\ResponseInterface The new response |
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*/ |
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protected function redirect(Response $response, int $code, string $url): Response |
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{ |
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return $response->withStatus($code)->withHeader('Location', $url); |
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} |
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/** |
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* Gets a pagination factory |
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* |
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* @return \Caridea\Http\PaginationFactory The pagination factory |
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*/ |
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protected function paginationFactory(): PaginationFactory |
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{ |
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return new PaginationFactory(); |
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} |
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} |
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libreworks /
caridea-http
