mirror of https://github.com/nextcloud/server
91 lines
2.4 KiB
PHP
91 lines
2.4 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2020, Roeland Jago Douma <roeland@famdouma.nl>
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*
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program 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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC\AppFramework\Middleware;
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use OC\AppFramework\OCS\BaseResponse;
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use OCP\AppFramework\Http;
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use OCP\AppFramework\Http\JSONResponse;
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use OCP\AppFramework\Http\Response;
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use OCP\AppFramework\Http\TemplateResponse;
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use OCP\AppFramework\Middleware;
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use OCP\IRequest;
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class CompressionMiddleware extends Middleware {
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/** @var bool */
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private $useGZip;
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/** @var IRequest */
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private $request;
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public function __construct(IRequest $request) {
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$this->request = $request;
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$this->useGZip = false;
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}
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public function afterController($controller, $methodName, Response $response) {
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// By default we do not gzip
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$allowGzip = false;
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// Only return gzipped content for 200 responses
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if ($response->getStatus() !== Http::STATUS_OK) {
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return $response;
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}
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// Check if we are even asked for gzip
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$header = $this->request->getHeader('Accept-Encoding');
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if (strpos($header, 'gzip') === false) {
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return $response;
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}
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// We only allow gzip in some cases
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if ($response instanceof BaseResponse) {
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$allowGzip = true;
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}
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if ($response instanceof JSONResponse) {
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$allowGzip = true;
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}
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if ($response instanceof TemplateResponse) {
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$allowGzip = true;
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}
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if ($allowGzip) {
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$this->useGZip = true;
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$response->addHeader('Content-Encoding', 'gzip');
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}
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return $response;
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}
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public function beforeOutput($controller, $methodName, $output) {
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if (!$this->useGZip) {
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return $output;
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}
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return gzencode($output);
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}
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}
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