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- <?php
- /**
- * @copyright Copyright (c) 2016 Bjoern Schiessle <bjoern@schiessle.org>
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * 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
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
- namespace OCA\LookupServerConnector\BackgroundJobs;
- use OC\BackgroundJob\Job;
- use OC\BackgroundJob\JobList;
- use OCP\BackgroundJob\IJobList;
- use OCP\Http\Client\IClientService;
- use OCP\IConfig;
- use OCP\ILogger;
- class RetryJob extends Job {
- /** @var IClientService */
- private $clientService;
- /** @var IJobList */
- private $jobList;
- /** @var string */
- private $lookupServer;
- /** @var int how much time should be between two, will be increased for each retry */
- private $interval = 100;
- /**
- * @param IClientService $clientService
- * @param IJobList $jobList
- * @param IConfig $config
- */
- public function __construct(IClientService $clientService,
- IJobList $jobList,
- IConfig $config) {
- $this->clientService = $clientService;
- $this->jobList = $jobList;
- if ($config->getSystemValue('has_internet_connection', true) === false) {
- return;
- }
- $this->lookupServer = $config->getSystemValue('lookup_server', 'https://lookup.nextcloud.com');
- if (!empty($this->lookupServer)) {
- $this->lookupServer = rtrim($this->lookupServer, '/');
- $this->lookupServer .= '/users';
- }
- }
- /**
- * run the job, then remove it from the jobList
- *
- * @param JobList $jobList
- * @param ILogger|null $logger
- */
- public function execute($jobList, ILogger $logger = null) {
- if ($this->shouldRun($this->argument)) {
- parent::execute($jobList, $logger);
- $jobList->remove($this, $this->argument);
- }
- }
- protected function run($argument) {
- if ($this->killBackgroundJob((int)$argument['retryNo'])) {
- return;
- }
- $client = $this->clientService->newClient();
- try {
- $client->post($this->lookupServer,
- [
- 'body' => json_encode($argument['dataArray']),
- 'timeout' => 10,
- 'connect_timeout' => 3,
- ]
- );
- } catch (\Exception $e) {
- $this->jobList->add(RetryJob::class,
- [
- 'dataArray' => $argument['dataArray'],
- 'retryNo' => $argument['retryNo'] + 1,
- 'lastRun' => time(),
- ]
- );
- }
- }
- /**
- * test if it is time for the next run
- *
- * @param array $argument
- * @return bool
- */
- protected function shouldRun($argument) {
- $retryNo = (int)$argument['retryNo'];
- $delay = $this->interval * 6 ** $retryNo;
- return !isset($argument['lastRun']) || ((time() - $argument['lastRun']) > $delay);
- }
- /**
- * check if we should kill the background job
- *
- * The lookup server should no longer be contacted if:
- *
- * - max retries are reached (set to 5)
- * - lookup server was disabled by the admin
- * - no valid lookup server URL given
- *
- * @param int $retryCount
- * @return bool
- */
- protected function killBackgroundJob($retryCount) {
- $maxTriesReached = $retryCount >= 5;
- $lookupServerDisabled = $this->config->getAppValue('files_sharing', 'lookupServerUploadEnabled', 'yes') !== 'yes';
- return $maxTriesReached || $lookupServerDisabled || empty($this->lookupServer);
- }
- }
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