From c4aef892788ced15812cc31abcf34c085b66ce5a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Schie=C3=9Fle?= <schiessle@owncloud.com>
Date: Thu, 27 Jun 2013 14:09:22 +0200
Subject: [PATCH 1/2] introduce pre-disable-app hook and use it for the
 encryption app to reset migration status if the app was disabled

---
 apps/files_encryption/appinfo/app.php |  3 +++
 apps/files_encryption/hooks/hooks.php | 13 +++++++++++++
 apps/files_encryption/lib/helper.php  |  9 +++++++++
 lib/app.php                           |  1 +
 4 files changed, 26 insertions(+)

diff --git a/apps/files_encryption/appinfo/app.php b/apps/files_encryption/appinfo/app.php
index d97811bb79..ca3f2554e5 100644
--- a/apps/files_encryption/appinfo/app.php
+++ b/apps/files_encryption/appinfo/app.php
@@ -22,6 +22,9 @@ if (!OC_Config::getValue('maintenance', false)) {
 	// Filesystem related hooks
 	OCA\Encryption\Helper::registerFilesystemHooks();
 
+	// App manager related hooks
+	OCA\Encryption\Helper::registerAppHooks();
+
 	stream_wrapper_register('crypt', 'OCA\Encryption\Stream');
 
 	// check if we are logged in
diff --git a/apps/files_encryption/hooks/hooks.php b/apps/files_encryption/hooks/hooks.php
index e39e068cc5..0915391894 100644
--- a/apps/files_encryption/hooks/hooks.php
+++ b/apps/files_encryption/hooks/hooks.php
@@ -543,4 +543,17 @@ class Hooks {
 
 		\OC_FileProxy::$enabled = $proxyStatus;
 	}
+
+	/**
+	 * set migration status back to '0' so that all new files get encrypted
+	 * if the app gets enabled again
+	 * @param array $params contains the app ID
+	 */
+	public static function preDisable($params) {
+		if ($params['app'] === 'files_encryption') {
+			$query = \OC_DB::prepare('UPDATE `*PREFIX*encryption` SET `migration_status`=0');
+			$query->execute();
+		}
+	}
+
 }
diff --git a/apps/files_encryption/lib/helper.php b/apps/files_encryption/lib/helper.php
index a22c139c50..b2045bfcea 100755
--- a/apps/files_encryption/lib/helper.php
+++ b/apps/files_encryption/lib/helper.php
@@ -62,6 +62,15 @@ class Helper {
 		\OCP\Util::connectHook('OC_Filesystem', 'post_rename', 'OCA\Encryption\Hooks', 'postRename');
 	}
 
+	/**
+	 * @brief register filesystem related hooks
+	 *
+	 */
+	public static function registerAppHooks() {
+
+		\OCP\Util::connectHook('OC_App', 'pre_disable', 'OCA\Encryption\Hooks', 'preDisable');
+	}
+
 	/**
 	 * @brief setup user for files_encryption
 	 *
diff --git a/lib/app.php b/lib/app.php
index f974dd9f59..f9b1c5ca7b 100644
--- a/lib/app.php
+++ b/lib/app.php
@@ -259,6 +259,7 @@ class OC_App{
 	 */
 	public static function disable( $app ) {
 		// check if app is a shipped app or not. if not delete
+		\OC_Hook::emit('OC_App', 'pre_disable', array('app' => $app));
 		OC_Appconfig::setValue( $app, 'enabled', 'no' );
 
 		// check if app is a shipped app or not. if not delete

From 2e6ebe1ab4e1ae6d0fb730e833c09ac4dbbb895c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Schie=C3=9Fle?= <schiessle@owncloud.com>
Date: Thu, 27 Jun 2013 14:14:25 +0200
Subject: [PATCH 2/2] fix function documentation

---
 apps/files_encryption/lib/helper.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/files_encryption/lib/helper.php b/apps/files_encryption/lib/helper.php
index b2045bfcea..0d30dd8e7b 100755
--- a/apps/files_encryption/lib/helper.php
+++ b/apps/files_encryption/lib/helper.php
@@ -63,7 +63,7 @@ class Helper {
 	}
 
 	/**
-	 * @brief register filesystem related hooks
+	 * @brief register app management related hooks
 	 *
 	 */
 	public static function registerAppHooks() {