nextcloud/apps/federation/backgroundjob/requestsharedsecret.php

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<?php
/**
* @author Björn Schießle <schiessle@owncloud.com>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\Federation\BackgroundJob;
use GuzzleHttp\Exception\ClientException;
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use OC\BackgroundJob\JobList;
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use OC\BackgroundJob\QueuedJob;
use OCA\Federation\DbHandler;
use OCA\Federation\TrustedServers;
use OCP\AppFramework\Http;
use OCP\BackgroundJob\IJobList;
use OCP\Http\Client\IClient;
use OCP\ILogger;
use OCP\IURLGenerator;
/**
* Class RequestSharedSecret
*
* Ask remote ownCloud to request a sharedSecret from this server
*
* @package OCA\Federation\Backgroundjob
*/
class RequestSharedSecret extends QueuedJob {
/** @var IClient */
private $httpClient;
/** @var IJobList */
private $jobList;
/** @var IURLGenerator */
private $urlGenerator;
/** @var DbHandler */
private $dbHandler;
/** @var TrustedServers */
private $trustedServers;
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private $endPoint = '/ocs/v2.php/apps/federation/api/v1/request-shared-secret?format=json';
/**
* RequestSharedSecret constructor.
*
* @param IClient $httpClient
* @param IURLGenerator $urlGenerator
* @param IJobList $jobList
* @param TrustedServers $trustedServers
* @param DbHandler $dbHandler
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*/
public function __construct(
IClient $httpClient = null,
IURLGenerator $urlGenerator = null,
IJobList $jobList = null,
TrustedServers $trustedServers = null,
dbHandler $dbHandler = null
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) {
$this->httpClient = $httpClient ? $httpClient : \OC::$server->getHTTPClientService()->newClient();
$this->jobList = $jobList ? $jobList : \OC::$server->getJobList();
$this->urlGenerator = $urlGenerator ? $urlGenerator : \OC::$server->getURLGenerator();
$this->dbHandler = $dbHandler ? $dbHandler : new DbHandler(\OC::$server->getDatabaseConnection(), \OC::$server->getL10N('federation'));
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if ($trustedServers) {
$this->trustedServers = $trustedServers;
} else {
$this->trustedServers = new TrustedServers(
$this->dbHandler,
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\OC::$server->getHTTPClientService(),
\OC::$server->getLogger(),
$this->jobList,
\OC::$server->getSecureRandom(),
\OC::$server->getConfig()
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);
}
}
/**
* run the job, then remove it from the joblist
*
* @param JobList $jobList
* @param ILogger $logger
*/
public function execute($jobList, ILogger $logger = null) {
$jobList->remove($this, $this->argument);
$target = $this->argument['url'];
// only execute if target is still in the list of trusted domains
if ($this->trustedServers->isTrustedServer($target)) {
parent::execute($jobList, $logger);
}
}
protected function run($argument) {
$target = $argument['url'];
$source = $this->urlGenerator->getAbsoluteURL('/');
$source = rtrim($source, '/');
$token = $argument['token'];
try {
$result = $this->httpClient->post(
$target . $this->endPoint,
[
'body' => [
'url' => $source,
'token' => $token,
],
'timeout' => 3,
'connect_timeout' => 3,
]
);
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$status = $result->getStatusCode();
} catch (ClientException $e) {
$status = $e->getCode();
}
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// if we received a unexpected response we try again later
if (
$status !== Http::STATUS_OK
&& $status !== Http::STATUS_FORBIDDEN
) {
$this->jobList->add(
'OCA\Federation\BackgroundJob\RequestSharedSecret',
$argument
);
}
if ($status === Http::STATUS_FORBIDDEN) {
// clear token if remote server refuses to ask for shared secret
$this->dbHandler->addToken($target, '');
}
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}
}