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<?php |
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declare(strict_types=1); |
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/** |
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* @copyright Copyright (c) 2020, Roeland Jago Douma <[email protected]> |
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* |
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* @author Roeland Jago Douma <[email protected]> |
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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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nextcloud /
server
