nextcloud/apps/updatenotification/lib/Notification/BackgroundJob.php

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<?php
declare(strict_types=1);
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Joas Schilling <coding@schilljs.com>
* @author Morris Jobke <hey@morrisjobke.de>
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*
* @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\UpdateNotification\Notification;
use OC\BackgroundJob\TimedJob;
use OC\Installer;
use OC\Updater\VersionCheck;
use OCP\App\IAppManager;
use OCP\Http\Client\IClientService;
use OCP\IConfig;
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use OCP\IGroup;
use OCP\IGroupManager;
use OCP\Notification\IManager;
class BackgroundJob extends TimedJob {
protected $connectionNotifications = [3, 7, 14, 30];
/** @var IConfig */
protected $config;
/** @var IManager */
protected $notificationManager;
/** @var IGroupManager */
protected $groupManager;
/** @var IAppManager */
protected $appManager;
/** @var IClientService */
protected $client;
/** @var Installer */
protected $installer;
/** @var string[] */
protected $users;
/**
* NotificationBackgroundJob constructor.
*
* @param IConfig $config
* @param IManager $notificationManager
* @param IGroupManager $groupManager
* @param IAppManager $appManager
* @param IClientService $client
* @param Installer $installer
*/
public function __construct(IConfig $config, IManager $notificationManager, IGroupManager $groupManager, IAppManager $appManager, IClientService $client, Installer $installer) {
// Run once a day
$this->setInterval(60 * 60 * 24);
$this->config = $config;
$this->notificationManager = $notificationManager;
$this->groupManager = $groupManager;
$this->appManager = $appManager;
$this->client = $client;
$this->installer = $installer;
}
protected function run($argument) {
$this->checkCoreUpdate();
$this->checkAppUpdates();
}
/**
* Check for ownCloud update
*/
protected function checkCoreUpdate() {
if (\in_array($this->getChannel(), ['daily', 'git'], true)) {
// "These aren't the update channels you're looking for." - Ben Obi-Wan Kenobi
return;
}
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$updater = $this->createVersionCheck();
$status = $updater->check();
if ($status === false) {
$errors = 1 + (int) $this->config->getAppValue('updatenotification', 'update_check_errors', 0);
$this->config->setAppValue('updatenotification', 'update_check_errors', $errors);
if (\in_array($errors, $this->connectionNotifications, true)) {
$this->sendErrorNotifications($errors);
}
} elseif (\is_array($status)) {
$this->config->setAppValue('updatenotification', 'update_check_errors', 0);
$this->clearErrorNotifications();
if (isset($status['version'])) {
$this->createNotifications('core', $status['version'], $status['versionstring']);
}
}
}
/**
* Send a message to the admin when the update server could not be reached
* @param int $numDays
*/
protected function sendErrorNotifications($numDays) {
$this->clearErrorNotifications();
$notification = $this->notificationManager->createNotification();
try {
$notification->setApp('updatenotification')
->setDateTime(new \DateTime())
->setObject('updatenotification', 'error')
->setSubject('connection_error', ['days' => $numDays]);
foreach ($this->getUsersToNotify() as $uid) {
$notification->setUser($uid);
$this->notificationManager->notify($notification);
}
} catch (\InvalidArgumentException $e) {
return;
}
}
/**
* Remove error notifications again
*/
protected function clearErrorNotifications() {
$notification = $this->notificationManager->createNotification();
try {
$notification->setApp('updatenotification')
->setSubject('connection_error')
->setObject('updatenotification', 'error');
} catch (\InvalidArgumentException $e) {
return;
}
$this->notificationManager->markProcessed($notification);
}
/**
* Check all installed apps for updates
*/
protected function checkAppUpdates() {
$apps = $this->appManager->getInstalledApps();
foreach ($apps as $app) {
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$update = $this->isUpdateAvailable($app);
if ($update !== false) {
$this->createNotifications($app, $update);
}
}
}
/**
* Create notifications for this app version
*
* @param string $app
* @param string $version
* @param string $visibleVersion
*/
protected function createNotifications($app, $version, $visibleVersion = '') {
$lastNotification = $this->config->getAppValue('updatenotification', $app, false);
if ($lastNotification === $version) {
// We already notified about this update
return;
}
if ($lastNotification !== false) {
// Delete old updates
$this->deleteOutdatedNotifications($app, $lastNotification);
}
$notification = $this->notificationManager->createNotification();
try {
$notification->setApp('updatenotification')
->setDateTime(new \DateTime())
->setObject($app, $version);
if ($visibleVersion !== '') {
$notification->setSubject('update_available', ['version' => $visibleVersion]);
} else {
$notification->setSubject('update_available');
}
foreach ($this->getUsersToNotify() as $uid) {
$notification->setUser($uid);
$this->notificationManager->notify($notification);
}
} catch (\InvalidArgumentException $e) {
return;
}
$this->config->setAppValue('updatenotification', $app, $version);
}
/**
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* @return string[]
*/
protected function getUsersToNotify(): array {
if ($this->users !== null) {
return $this->users;
}
$notifyGroups = (array) json_decode($this->config->getAppValue('updatenotification', 'notify_groups', '["admin"]'), true);
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$this->users = [];
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foreach ($notifyGroups as $group) {
$groupToNotify = $this->groupManager->get($group);
if ($groupToNotify instanceof IGroup) {
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foreach ($groupToNotify->getUsers() as $user) {
$this->users[$user->getUID()] = true;
}
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}
}
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$this->users = array_keys($this->users);
return $this->users;
}
/**
* Delete notifications for old updates
*
* @param string $app
* @param string $version
*/
protected function deleteOutdatedNotifications($app, $version) {
$notification = $this->notificationManager->createNotification();
try {
$notification->setApp('updatenotification')
->setObject($app, $version);
} catch (\InvalidArgumentException $e) {
return;
}
$this->notificationManager->markProcessed($notification);
}
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/**
* @return VersionCheck
*/
protected function createVersionCheck(): VersionCheck {
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return new VersionCheck(
$this->client,
$this->config
);
}
/**
* @return string
*/
protected function getChannel(): string {
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return \OC_Util::getChannel();
}
/**
* @param string $app
* @return string|false
*/
protected function isUpdateAvailable($app) {
return $this->installer->isUpdateAvailable($app);
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}
}