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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OC\AppFramework\Middleware;
use OCP\AppFramework\Http;
use OCP\AppFramework\Http\Response;
use OCP\AppFramework\Middleware;
use OCP\IRequest;
class NotModifiedMiddleware extends Middleware {
/** @var IRequest */
private $request;
public function __construct(IRequest $request) {
$this->request = $request;
}
public function afterController($controller, $methodName, Response $response) {
$etagHeader = $this->request->getHeader('IF_NONE_MATCH');
if ($etagHeader !== '' && $response->getETag() !== null && trim($etagHeader) === '"' . $response->getETag() . '"') {
$response->setStatus(Http::STATUS_NOT_MODIFIED);
return $response;
}
$modifiedSinceHeader = $this->request->getHeader('IF_MODIFIED_SINCE');
if ($modifiedSinceHeader !== '' && $response->getLastModified() !== null && trim($modifiedSinceHeader) === $response->getLastModified()->format(\DateTimeInterface::RFC2822)) {
$response->setStatus(Http::STATUS_NOT_MODIFIED);
return $response;
}
return $response;
}
}
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