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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
* @author Bjoern Schiessle <bjoern@schiessle.org>
* @author Christoph Schaefer "christophł@wolkesicher.de"
* @author Christoph Wurst <christoph@owncloud.com>
* @author Joas Schilling <coding@schilljs.com>
* @author Julius Haertl <jus@bitgrid.net>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @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 OC\App;
use OCP\App\AppPathNotFoundException;
use OCP\App\IAppManager;
use OCP\App\ManagerEvent;
use OCP\IAppConfig;
use OCP\ICacheFactory;
use OCP\IGroupManager;
use OCP\IUser;
use OCP\IUserSession;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
class AppManager implements IAppManager {
/**
* Apps with these types can not be enabled for certain groups only
* @var string[]
*/
protected $protectedAppTypes = [
'filesystem',
'prelogin',
'authentication',
'logging',
'prevent_group_restriction',
];
/** @var IUserSession */
private $userSession;
/** @var IAppConfig */
private $appConfig;
/** @var IGroupManager */
private $groupManager;
/** @var ICacheFactory */
private $memCacheFactory;
/** @var EventDispatcherInterface */
private $dispatcher;
/** @var string[] $appId => $enabled */
private $installedAppsCache;
/** @var string[] */
private $shippedApps;
/** @var string[] */
private $alwaysEnabled;
/**
* @param IUserSession $userSession
* @param IAppConfig $appConfig
* @param IGroupManager $groupManager
* @param ICacheFactory $memCacheFactory
* @param EventDispatcherInterface $dispatcher
*/
public function __construct(IUserSession $userSession,
IAppConfig $appConfig,
IGroupManager $groupManager,
ICacheFactory $memCacheFactory,
EventDispatcherInterface $dispatcher) {
$this->userSession = $userSession;
$this->appConfig = $appConfig;
$this->groupManager = $groupManager;
$this->memCacheFactory = $memCacheFactory;
$this->dispatcher = $dispatcher;
}
/**
* @return string[] $appId => $enabled
*/
private function getInstalledAppsValues() {
if (!$this->installedAppsCache) {
$values = $this->appConfig->getValues(false, 'enabled');
$alwaysEnabledApps = $this->getAlwaysEnabledApps();
foreach($alwaysEnabledApps as $appId) {
$values[$appId] = 'yes';
}
$this->installedAppsCache = array_filter($values, function ($value) {
return $value !== 'no';
});
ksort($this->installedAppsCache);
}
return $this->installedAppsCache;
}
/**
* List all installed apps
*
* @return string[]
*/
public function getInstalledApps() {
return array_keys($this->getInstalledAppsValues());
}
/**
* List all apps enabled for a user
*
* @param \OCP\IUser $user
* @return string[]
*/
public function getEnabledAppsForUser(IUser $user) {
$apps = $this->getInstalledAppsValues();
$appsForUser = array_filter($apps, function ($enabled) use ($user) {
return $this->checkAppForUser($enabled, $user);
});
return array_keys($appsForUser);
}
/**
* Check if an app is enabled for user
*
* @param string $appId
* @param \OCP\IUser $user (optional) if not defined, the currently logged in user will be used
* @return bool
*/
public function isEnabledForUser($appId, $user = null) {
if ($this->isAlwaysEnabled($appId)) {
return true;
}
if ($user === null) {
$user = $this->userSession->getUser();
}
$installedApps = $this->getInstalledAppsValues();
if (isset($installedApps[$appId])) {
return $this->checkAppForUser($installedApps[$appId], $user);
} else {
return false;
}
}
/**
* @param string $enabled
* @param IUser $user
* @return bool
*/
private function checkAppForUser($enabled, $user) {
if ($enabled === 'yes') {
return true;
} elseif ($user === null) {
return false;
} else {
if(empty($enabled)){
return false;
}
$groupIds = json_decode($enabled);
if (!is_array($groupIds)) {
$jsonError = json_last_error();
\OC::$server->getLogger()->warning('AppManger::checkAppForUser - can\'t decode group IDs: ' . print_r($enabled, true) . ' - json error code: ' . $jsonError, ['app' => 'lib']);
return false;
}
$userGroups = $this->groupManager->getUserGroupIds($user);
foreach ($userGroups as $groupId) {
if (in_array($groupId, $groupIds, true)) {
return true;
}
}
return false;
}
}
/**
* Check if an app is installed in the instance
*
* @param string $appId
* @return bool
*/
public function isInstalled($appId) {
$installedApps = $this->getInstalledAppsValues();
return isset($installedApps[$appId]);
}
/**
* Enable an app for every user
*
* @param string $appId
* @throws AppPathNotFoundException
*/
public function enableApp($appId) {
// Check if app exists
$this->getAppPath($appId);
$this->installedAppsCache[$appId] = 'yes';
$this->appConfig->setValue($appId, 'enabled', 'yes');
$this->dispatcher->dispatch(ManagerEvent::EVENT_APP_ENABLE, new ManagerEvent(
ManagerEvent::EVENT_APP_ENABLE, $appId
));
$this->clearAppsCache();
}
/**
* Whether a list of types contains a protected app type
*
* @param string[] $types
* @return bool
*/
public function hasProtectedAppType($types) {
if (empty($types)) {
return false;
}
$protectedTypes = array_intersect($this->protectedAppTypes, $types);
return !empty($protectedTypes);
}
/**
* Enable an app only for specific groups
*
* @param string $appId
* @param \OCP\IGroup[] $groups
* @throws \Exception if app can't be enabled for groups
*/
public function enableAppForGroups($appId, $groups) {
$info = $this->getAppInfo($appId);
if (!empty($info['types'])) {
$protectedTypes = array_intersect($this->protectedAppTypes, $info['types']);
if (!empty($protectedTypes)) {
throw new \Exception("$appId can't be enabled for groups.");
}
}
$groupIds = array_map(function ($group) {
/** @var \OCP\IGroup $group */
return $group->getGID();
}, $groups);
$this->installedAppsCache[$appId] = json_encode($groupIds);
$this->appConfig->setValue($appId, 'enabled', json_encode($groupIds));
$this->dispatcher->dispatch(ManagerEvent::EVENT_APP_ENABLE_FOR_GROUPS, new ManagerEvent(
ManagerEvent::EVENT_APP_ENABLE_FOR_GROUPS, $appId, $groups
));
$this->clearAppsCache();
}
/**
* Disable an app for every user
*
* @param string $appId
* @throws \Exception if app can't be disabled
*/
public function disableApp($appId) {
if ($this->isAlwaysEnabled($appId)) {
throw new \Exception("$appId can't be disabled.");
}
unset($this->installedAppsCache[$appId]);
$this->appConfig->setValue($appId, 'enabled', 'no');
$this->dispatcher->dispatch(ManagerEvent::EVENT_APP_DISABLE, new ManagerEvent(
ManagerEvent::EVENT_APP_DISABLE, $appId
));
$this->clearAppsCache();
}
/**
* Get the directory for the given app.
*
* @param string $appId
* @return string
* @throws AppPathNotFoundException if app folder can't be found
*/
public function getAppPath($appId) {
$appPath = \OC_App::getAppPath($appId);
if($appPath === false) {
throw new AppPathNotFoundException('Could not find path for ' . $appId);
}
return $appPath;
}
/**
* Clear the cached list of apps when enabling/disabling an app
*/
public function clearAppsCache() {
$settingsMemCache = $this->memCacheFactory->createDistributed('settings');
$settingsMemCache->clear('listApps');
}
/**
* Returns a list of apps that need upgrade
*
* @param string $version Nextcloud version as array of version components
* @return array list of app info from apps that need an upgrade
*
* @internal
*/
public function getAppsNeedingUpgrade($version) {
$appsToUpgrade = [];
$apps = $this->getInstalledApps();
foreach ($apps as $appId) {
$appInfo = $this->getAppInfo($appId);
$appDbVersion = $this->appConfig->getValue($appId, 'installed_version');
if ($appDbVersion
&& isset($appInfo['version'])
&& version_compare($appInfo['version'], $appDbVersion, '>')
&& \OC_App::isAppCompatible($version, $appInfo)
) {
$appsToUpgrade[] = $appInfo;
}
}
return $appsToUpgrade;
}
/**
* Returns the app information from "appinfo/info.xml".
*
* @param string $appId app id
*
* @return array app info
*
* @internal
*/
public function getAppInfo($appId) {
$appInfo = \OC_App::getAppInfo($appId);
if (!isset($appInfo['version'])) {
// read version from separate file
$appInfo['version'] = \OC_App::getAppVersion($appId);
}
return $appInfo;
}
/**
* Returns a list of apps incompatible with the given version
*
* @param string $version Nextcloud version as array of version components
*
* @return array list of app info from incompatible apps
*
* @internal
*/
public function getIncompatibleApps($version) {
$apps = $this->getInstalledApps();
$incompatibleApps = array();
foreach ($apps as $appId) {
$info = $this->getAppInfo($appId);
if (!\OC_App::isAppCompatible($version, $info)) {
$incompatibleApps[] = $info;
}
}
return $incompatibleApps;
}
/**
* @inheritdoc
*/
public function isShipped($appId) {
$this->loadShippedJson();
return in_array($appId, $this->shippedApps, true);
}
private function isAlwaysEnabled($appId) {
$alwaysEnabled = $this->getAlwaysEnabledApps();
return in_array($appId, $alwaysEnabled, true);
}
private function loadShippedJson() {
if ($this->shippedApps === null) {
$shippedJson = \OC::$SERVERROOT . '/core/shipped.json';
if (!file_exists($shippedJson)) {
throw new \Exception("File not found: $shippedJson");
}
$content = json_decode(file_get_contents($shippedJson), true);
$this->shippedApps = $content['shippedApps'];
$this->alwaysEnabled = $content['alwaysEnabled'];
}
}
/**
* @inheritdoc
*/
public function getAlwaysEnabledApps() {
$this->loadShippedJson();
return $this->alwaysEnabled;
}
}