142 lines
No EOL
3.9 KiB
PHP
142 lines
No EOL
3.9 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright 2024 Jonathan Treffler <mail@jonathan-treffler.de>
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*
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* @author Jonathan Treffler <mail@jonathan-treffler.de>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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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 OCA\DavPush\Dav;
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use OCP\IUserSession;
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use OCP\AppFramework\Http;
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use Sabre\DAV\Server;
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use Sabre\DAV\ServerPlugin;
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use Sabre\HTTP\RequestInterface;
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use Sabre\HTTP\ResponseInterface;
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class SubscriptionManagementPlugin extends ServerPlugin {
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public const PUSH_PREFIX = '{DAV:Push}';
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public const PUSH_REGISTER = self::PUSH_PREFIX . "push-register";
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public const PUSH_SUBSCRIPTION = self::PUSH_PREFIX . "subscription";
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public const PUSH_EXPIRES = self::PUSH_PREFIX . "expires";
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/**
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* Reference to SabreDAV server object.
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*
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* @var \Sabre\DAV\Server
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*/
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protected $server;
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public function __construct(
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private IUserSession $userSession,
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) {
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}
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public function initialize(Server $server): void {
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$this->server = $server;
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$this->server->on('method:POST', [$this, 'httpPost']);
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}
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public function httpPost(RequestInterface $request, ResponseInterface $response) {
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// Only handle xml
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$contentType = (string) $request->getHeader('Content-Type');
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if (!(str_contains($contentType, 'application/xml') || str_contains($contentType, 'text/xml'))) {
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return;
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}
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$requestBody = $request->getBodyAsString();
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// If this request handler could not deal with this POST request, it
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// will return 'null' and other plugins get a chance to handle the
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// request.
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//
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// However, we already requested the full body. This is a problem,
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// because a body can only be read once. This is why we preemptively
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// re-populated the request body with the existing data.
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$request->setBody($requestBody);
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$parameters = $this->server->xml->parse($requestBody, $request->getUrl(), $documentType);
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if($documentType == self::PUSH_REGISTER) {
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$errors = [];
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$subscriptionParameterIncluded = False;
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$subscriptionType = "";
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$subscriptionOptions = [];
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$subscriptionExpires = False;
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foreach($parameters as $parameter) {
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if($parameter["name"] == self::PUSH_SUBSCRIPTION && !$subscriptionParameterIncluded) {
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$subscriptionParameterIncluded = True;
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if(sizeof($parameter["value"]) == 1) {
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$subscriptionType = $parameter["value"][0]["name"];
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$subscriptionOptions = $parameter["value"][0]["value"];
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} else {
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$errors[] = "only one subscription allowed";
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}
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} elif($parameter["name"] == self::PUSH_EXPIRES && !$subscriptionExpires) {
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$subscriptionExpires = $parameter["value"];
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}
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}
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if(!$subscriptionParameterIncluded) {
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$errors[] = "no subscription included";
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}
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if(sizeof($errors) == 0) {
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$response->setStatus(Http::STATUS_CREATED);
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//$response->setBody($subscriptionType);
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//$response->setBody(json_encode($parameters));
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// pass data to applicable transport class
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} else {
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$response->setStatus(Http::STATUS_BAD_REQUEST);
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$errorsXML = [];
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foreach($errors as $error) {
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$errorsXML[] = [
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"name" => "error",
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"value" => $error
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];
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}
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$xml = $this->server->xml->write(
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'{DAV:}error',
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$errorsXML
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);
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$response->setBody($xml);
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}
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return false;
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}
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}
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} |