From 6fc59f85b69af3ab6a8b979b7b6240cc4920efc7 Mon Sep 17 00:00:00 2001
From: Thomas Müller <thomas.mueller@tmit.eu>
Date: Fri, 16 Oct 2015 16:30:29 +0200
Subject: Store list of apps which cannot be disabled in shipped.json

---
 lib/private/app/appmanager.php | 59 ++++++++++++++++++++++++++++++++----------
 1 file changed, 45 insertions(+), 14 deletions(-)

(limited to 'lib/private/app')

diff --git a/lib/private/app/appmanager.php b/lib/private/app/appmanager.php
index 8fb197e73ff..a121b8ab861 100644
--- a/lib/private/app/appmanager.php
+++ b/lib/private/app/appmanager.php
@@ -33,29 +33,28 @@ use OCP\IUser;
 use OCP\IUserSession;
 
 class AppManager implements IAppManager {
-	/**
-	 * @var \OCP\IUserSession
-	 */
+
+	/** @var \OCP\IUserSession */
 	private $userSession;
 
-	/**
-	 * @var \OCP\IAppConfig
-	 */
+	/** @var \OCP\IAppConfig */
 	private $appConfig;
 
-	/**
-	 * @var \OCP\IGroupManager
-	 */
+	/** @var \OCP\IGroupManager */
 	private $groupManager;
 
 	/** @var \OCP\ICacheFactory */
 	private $memCacheFactory;
 
-	/**
-	 * @var string[] $appId => $enabled
-	 */
+	/** @var string[] $appId => $enabled */
 	private $installedAppsCache;
 
+	/** @var string[] */
+	private $shippedApps;
+
+	/** @var string[] */
+	private $alwaysEnabled;
+
 	/**
 	 * @param \OCP\IUserSession $userSession
 	 * @param \OCP\IAppConfig $appConfig
@@ -117,6 +116,9 @@ class AppManager implements IAppManager {
 	 * @return bool
 	 */
 	public function isEnabledForUser($appId, $user = null) {
+		if ($this->isAlwaysEnabled($appId)) {
+			return true;
+		}
 		if (is_null($user)) {
 			$user = $this->userSession->getUser();
 		}
@@ -134,6 +136,9 @@ class AppManager implements IAppManager {
 	 * @return bool
 	 */
 	private function checkAppForUser($enabled, $user) {
+		if ($this->isAlwaysEnabled($enabled)) {
+			return true;
+		}
 		if ($enabled === 'yes') {
 			return true;
 		} elseif (is_null($user)) {
@@ -195,8 +200,8 @@ class AppManager implements IAppManager {
 	 * @throws \Exception if app can't be disabled
 	 */
 	public function disableApp($appId) {
-		if ($appId === 'files') {
-			throw new \Exception("files can't be disabled.");
+		if ($this->isAlwaysEnabled($appId)) {
+			throw new \Exception("$appId can't be disabled.");
 		}
 		unset($this->installedAppsCache[$appId]);
 		$this->appConfig->setValue($appId, 'enabled', 'no');
@@ -279,4 +284,30 @@ class AppManager implements IAppManager {
 		return $incompatibleApps;
 	}
 
+	public function isShipped($appId) {
+		$this->loadShippedJson();
+		return in_array($appId, $this->shippedApps);
+	}
+
+	private function isAlwaysEnabled($appId) {
+		$this->loadShippedJson();
+		return in_array($appId, $this->alwaysEnabled);
+	}
+
+	private function loadShippedJson() {
+		if (is_null($this->shippedApps)) {
+			$shippedJson = \OC::$SERVERROOT . '/core/shipped.json';
+			if (file_exists($shippedJson)) {
+				$content = json_decode(file_get_contents($shippedJson), true);
+				$this->shippedApps = $content['shippedApps'];
+				$this->alwaysEnabled = $content['alwaysEnabled'];
+			} else {
+				$this->shippedApps = ['files', 'encryption', 'files_external',
+					'files_sharing', 'files_trashbin', 'files_versions', 'provisioning_api',
+					'user_ldap', 'user_webdavauth'];
+				$this->alwaysEnabled = ['files', 'dav'];
+			}
+		}
+	}
+
 }
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