this was a migration step to ownCloud 8.0 to restructure the encryption folder which is no longer needed

Signed-off-by: Bjoern Schiessle <bjoern@schiessle.org>

17 files changed, 8 insertions, 1485 deletions

diff --git a/apps/encryption/appinfo/app.php b/apps/encryption/appinfo/app.php
index 63e99476602..a39464e21f8 100644
--- a/apps/encryption/appinfo/app.php
+++ b/apps/encryption/appinfo/app.php
@@ -28,7 +28,7 @@ namespace OCA\Encryption\AppInfo;
 
 $encryptionSystemReady = \OC::$server->getEncryptionManager()->isReady();
 
-$app = new Application([], $encryptionSystemReady);
+$app = new Application();
 if ($encryptionSystemReady) {
 	$app->registerEncryptionModule();
 	$app->registerHooks();
diff --git a/apps/encryption/appinfo/info.xml b/apps/encryption/appinfo/info.xml
index 2859043e72b..a0bf0fcf14c 100644
--- a/apps/encryption/appinfo/info.xml
+++ b/apps/encryption/appinfo/info.xml
@@ -43,7 +43,6 @@
 	<commands>
 		<command>OCA\Encryption\Command\EnableMasterKey</command>
 		<command>OCA\Encryption\Command\DisableMasterKey</command>
-		<command>OCA\Encryption\Command\MigrateKeys</command>
 	</commands>
 
 	<settings>
diff --git a/apps/encryption/composer/composer/autoload_classmap.php b/apps/encryption/composer/composer/autoload_classmap.php
index 7ab0056cc8c..024f61bd6ce 100644
--- a/apps/encryption/composer/composer/autoload_classmap.php
+++ b/apps/encryption/composer/composer/autoload_classmap.php
@@ -9,7 +9,6 @@ return array(
     'OCA\\Encryption\\AppInfo\\Application' => $baseDir . '/../lib/AppInfo/Application.php',
     'OCA\\Encryption\\Command\\DisableMasterKey' => $baseDir . '/../lib/Command/DisableMasterKey.php',
     'OCA\\Encryption\\Command\\EnableMasterKey' => $baseDir . '/../lib/Command/EnableMasterKey.php',
-    'OCA\\Encryption\\Command\\MigrateKeys' => $baseDir . '/../lib/Command/MigrateKeys.php',
     'OCA\\Encryption\\Controller\\RecoveryController' => $baseDir . '/../lib/Controller/RecoveryController.php',
     'OCA\\Encryption\\Controller\\SettingsController' => $baseDir . '/../lib/Controller/SettingsController.php',
     'OCA\\Encryption\\Controller\\StatusController' => $baseDir . '/../lib/Controller/StatusController.php',
@@ -25,7 +24,6 @@ return array(
     'OCA\\Encryption\\Hooks\\Contracts\\IHook' => $baseDir . '/../lib/Hooks/Contracts/IHook.php',
     'OCA\\Encryption\\Hooks\\UserHooks' => $baseDir . '/../lib/Hooks/UserHooks.php',
     'OCA\\Encryption\\KeyManager' => $baseDir . '/../lib/KeyManager.php',
-    'OCA\\Encryption\\Migration' => $baseDir . '/../lib/Migration.php',
     'OCA\\Encryption\\Migration\\SetMasterKeyStatus' => $baseDir . '/../lib/Migration/SetMasterKeyStatus.php',
     'OCA\\Encryption\\Recovery' => $baseDir . '/../lib/Recovery.php',
     'OCA\\Encryption\\Session' => $baseDir . '/../lib/Session.php',
diff --git a/apps/encryption/composer/composer/autoload_static.php b/apps/encryption/composer/composer/autoload_static.php
index b3ec7c52fe8..3f0082a80c8 100644
--- a/apps/encryption/composer/composer/autoload_static.php
+++ b/apps/encryption/composer/composer/autoload_static.php
@@ -24,7 +24,6 @@ class ComposerStaticInitEncryption
         'OCA\\Encryption\\AppInfo\\Application' => __DIR__ . '/..' . '/../lib/AppInfo/Application.php',
         'OCA\\Encryption\\Command\\DisableMasterKey' => __DIR__ . '/..' . '/../lib/Command/DisableMasterKey.php',
         'OCA\\Encryption\\Command\\EnableMasterKey' => __DIR__ . '/..' . '/../lib/Command/EnableMasterKey.php',
-        'OCA\\Encryption\\Command\\MigrateKeys' => __DIR__ . '/..' . '/../lib/Command/MigrateKeys.php',
         'OCA\\Encryption\\Controller\\RecoveryController' => __DIR__ . '/..' . '/../lib/Controller/RecoveryController.php',
         'OCA\\Encryption\\Controller\\SettingsController' => __DIR__ . '/..' . '/../lib/Controller/SettingsController.php',
         'OCA\\Encryption\\Controller\\StatusController' => __DIR__ . '/..' . '/../lib/Controller/StatusController.php',
@@ -40,7 +39,6 @@ class ComposerStaticInitEncryption
         'OCA\\Encryption\\Hooks\\Contracts\\IHook' => __DIR__ . '/..' . '/../lib/Hooks/Contracts/IHook.php',
         'OCA\\Encryption\\Hooks\\UserHooks' => __DIR__ . '/..' . '/../lib/Hooks/UserHooks.php',
         'OCA\\Encryption\\KeyManager' => __DIR__ . '/..' . '/../lib/KeyManager.php',
-        'OCA\\Encryption\\Migration' => __DIR__ . '/..' . '/../lib/Migration.php',
         'OCA\\Encryption\\Migration\\SetMasterKeyStatus' => __DIR__ . '/..' . '/../lib/Migration/SetMasterKeyStatus.php',
         'OCA\\Encryption\\Recovery' => __DIR__ . '/..' . '/../lib/Recovery.php',
         'OCA\\Encryption\\Session' => __DIR__ . '/..' . '/../lib/Session.php',
diff --git a/apps/encryption/lib/AppInfo/Application.php b/apps/encryption/lib/AppInfo/Application.php
index da59169694b..55839e097a1 100644
--- a/apps/encryption/lib/AppInfo/Application.php
+++ b/apps/encryption/lib/AppInfo/Application.php
@@ -55,19 +55,12 @@ class Application extends \OCP\AppFramework\App {
 
 	/**
 	 * @param array $urlParams
-	 * @param bool $encryptionSystemReady
 	 */
-	public function __construct($urlParams = array(), $encryptionSystemReady = true) {
+	public function __construct($urlParams = array()) {
 		parent::__construct('encryption', $urlParams);
 		$this->encryptionManager = \OC::$server->getEncryptionManager();
 		$this->config = \OC::$server->getConfig();
 		$this->registerServices();
-		if($encryptionSystemReady === false) {
-			/** @var Session $session */
-			$session = $this->getContainer()->query('Session');
-			$session->setStatus(Session::RUN_MIGRATION);
-		}
-
 	}
 
 	public function setUp() {
diff --git a/apps/encryption/lib/Command/MigrateKeys.php b/apps/encryption/lib/Command/MigrateKeys.php
deleted file mode 100644
index 18eb6e710a6..00000000000
--- a/apps/encryption/lib/Command/MigrateKeys.php
+++ /dev/null
@@ -1,127 +0,0 @@
-<?php
-/**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Björn Schießle <bjoern@schiessle.org>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @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\Encryption\Command;
-
-use OC\Files\View;
-use OCA\Encryption\Migration;
-use OCP\IConfig;
-use OCP\IDBConnection;
-use OCP\ILogger;
-use OCP\IUserBackend;
-use OCP\IUserManager;
-use Symfony\Component\Console\Command\Command;
-use Symfony\Component\Console\Input\InputArgument;
-use Symfony\Component\Console\Input\InputInterface;
-use Symfony\Component\Console\Output\OutputInterface;
-
-class MigrateKeys extends Command {
-
-	/** @var IUserManager */
-	private $userManager;
-	/** @var View */
-	private $view;
-	/** @var IDBConnection */
-	private $connection;
-	/** @var IConfig */
-	private $config;
-	/** @var  ILogger */
-	private $logger;
-
-	/**
-	 * @param IUserManager $userManager
-	 * @param View $view
-	 * @param IDBConnection $connection
-	 * @param IConfig $config
-	 * @param ILogger $logger
-	 */
-	public function __construct(IUserManager $userManager,
-								View $view,
-								IDBConnection $connection,
-								IConfig $config,
-								ILogger $logger) {
-
-		$this->userManager = $userManager;
-		$this->view = $view;
-		$this->connection = $connection;
-		$this->config = $config;
-		$this->logger = $logger;
-		parent::__construct();
-	}
-
-	protected function configure() {
-		$this
-			->setName('encryption:migrate')
-			->setDescription('initial migration to encryption 2.0')
-			->addArgument(
-				'user_id',
-				InputArgument::OPTIONAL | InputArgument::IS_ARRAY,
-				'will migrate keys of the given user(s)'
-			);
-	}
-
-	protected function execute(InputInterface $input, OutputInterface $output) {
-
-		// perform system reorganization
-		$migration = new Migration($this->config, $this->view, $this->connection, $this->logger);
-
-		$users = $input->getArgument('user_id');
-		if (!empty($users)) {
-			foreach ($users as $user) {
-				if ($this->userManager->userExists($user)) {
-					$output->writeln("Migrating keys   <info>$user</info>");
-					$migration->reorganizeFolderStructureForUser($user);
-				} else {
-					$output->writeln("<error>Unknown user $user</error>");
-				}
-			}
-		} else {
-			$output->writeln("Reorganize system folder structure");
-			$migration->reorganizeSystemFolderStructure();
-			$migration->updateDB();
-			foreach($this->userManager->getBackends() as $backend) {
-				$name = get_class($backend);
-
-				if ($backend instanceof IUserBackend) {
-					$name = $backend->getBackendName();
-				}
-
-				$output->writeln("Migrating keys for users on backend <info>$name</info>");
-
-				$limit = 500;
-				$offset = 0;
-				do {
-					$users = $backend->getUsers('', $limit, $offset);
-					foreach ($users as $user) {
-						$output->writeln("   <info>$user</info>");
-						$migration->reorganizeFolderStructureForUser($user);
-					}
-					$offset += $limit;
-				} while(count($users) >= $limit);
-			}
-		}
-
-		$migration->finalCleanUp();
-
-	}
-}
diff --git a/apps/encryption/lib/Controller/StatusController.php b/apps/encryption/lib/Controller/StatusController.php
index b133d5b2e5b..fa88a35453e 100644
--- a/apps/encryption/lib/Controller/StatusController.php
+++ b/apps/encryption/lib/Controller/StatusController.php
@@ -73,12 +73,6 @@ class StatusController extends Controller {
 		$status = 'error';
 		$message = 'no valid init status';
 		switch( $this->session->getStatus()) {
-			case Session::RUN_MIGRATION:
-				$status = 'interactionNeeded';
-				$message = (string)$this->l->t(
-					'You need to migrate your encryption keys from the old encryption (ownCloud <= 8.0) to the new one. Please run \'occ encryption:migrate\' or contact your administrator'
-				);
-				break;
 			case Session::INIT_EXECUTED:
 				$status = 'interactionNeeded';
 				$message = (string)$this->l->t(
diff --git a/apps/encryption/lib/Migration.php b/apps/encryption/lib/Migration.php
deleted file mode 100644
index 35f35a1520c..00000000000
--- a/apps/encryption/lib/Migration.php
+++ /dev/null
@@ -1,395 +0,0 @@
-<?php
-/**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Björn Schießle <bjoern@schiessle.org>
- * @author Joas Schilling <coding@schilljs.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <robin@icewind.nl>
- *
- * @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\Encryption;
-
-
-use OC\Files\View;
-use OCP\App\IAppManager;
-use OCP\IConfig;
-use OCP\IDBConnection;
-use OCP\ILogger;
-
-class Migration {
-
-	private $moduleId;
-	/** @var \OC\Files\View */
-	private $view;
-	/** @var \OCP\IDBConnection */
-	private $connection;
-	/** @var IConfig */
-	private $config;
-	/** @var  ILogger */
-	private $logger;
-	/** @var string*/
-	protected $installedVersion;
-	/** @var IAppManager */
-	protected $appManager;
-
-	/**
-	 * @param IConfig $config
-	 * @param View $view
-	 * @param IDBConnection $connection
-	 * @param ILogger $logger
-	 */
-	public function __construct(IConfig $config, View $view, IDBConnection $connection, ILogger $logger, IAppManager $appManager) {
-		$this->view = $view;
-		$this->view->disableCacheUpdate();
-		$this->connection = $connection;
-		$this->moduleId = \OCA\Encryption\Crypto\Encryption::ID;
-		$this->config = $config;
-		$this->logger = $logger;
-		$this->installedVersion = $this->config->getAppValue('files_encryption', 'installed_version', '-1');
-		$this->appManager = $appManager;
-	}
-
-	public function finalCleanUp() {
-		$this->view->deleteAll('files_encryption/public_keys');
-		$this->updateFileCache();
-		$this->config->deleteAppValue('files_encryption', 'installed_version');
-	}
-
-	/**
-	 * update file cache, copy unencrypted_size to the 'size' column
-	 */
-	private function updateFileCache() {
-		// make sure that we don't update the file cache multiple times
-		// only update during the first run
-		if ($this->installedVersion !== '-1') {
-			$query = $this->connection->getQueryBuilder();
-			$query->update('filecache')
-				->set('size', 'unencrypted_size')
-				->where($query->expr()->eq('encrypted', $query->createParameter('encrypted')))
-				->setParameter('encrypted', 1);
-			$query->execute();
-		}
-	}
-
-	/**
-	 * iterate through users and reorganize the folder structure
-	 */
-	public function reorganizeFolderStructure() {
-		$this->reorganizeSystemFolderStructure();
-
-		$limit = 500;
-		$offset = 0;
-		do {
-			$users = \OCP\User::getUsers('', $limit, $offset);
-			foreach ($users as $user) {
-				$this->reorganizeFolderStructureForUser($user);
-			}
-			$offset += $limit;
-		} while (count($users) >= $limit);
-	}
-
-	/**
-	 * reorganize system wide folder structure
-	 */
-	public function reorganizeSystemFolderStructure() {
-
-		$this->createPathForKeys('/files_encryption');
-
-		// backup system wide folders
-		$this->backupSystemWideKeys();
-
-		// rename system wide mount point
-		$this->renameFileKeys('', '/files_encryption/keys');
-
-		// rename system private keys
-		$this->renameSystemPrivateKeys();
-
-		$storage = $this->view->getMount('')->getStorage();
-		$storage->getScanner()->scan('files_encryption');
-	}
-
-
-	/**
-	 * reorganize folder structure for user
-	 *
-	 * @param string $user
-	 */
-	public function reorganizeFolderStructureForUser($user) {
-		// backup all keys
-		\OC_Util::tearDownFS();
-		\OC_Util::setupFS($user);
-		if ($this->backupUserKeys($user)) {
-			// rename users private key
-			$this->renameUsersPrivateKey($user);
-			$this->renameUsersPublicKey($user);
-			// rename file keys
-			$path = '/files_encryption/keys';
-			$this->renameFileKeys($user, $path);
-			$trashPath = '/files_trashbin/keys';
-			if ($this->appManager->isEnabledForUser('files_trashbin') && $this->view->is_dir($user . '/' . $trashPath)) {
-				$this->renameFileKeys($user, $trashPath, true);
-				$this->view->deleteAll($trashPath);
-			}
-			// delete old folders
-			$this->deleteOldKeys($user);
-			$this->view->getMount('/' . $user)->getStorage()->getScanner()->scan('files_encryption');
-		}
-	}
-
-	/**
-	 * update database
-	 */
-	public function updateDB() {
-
-		// make sure that we don't update the file cache multiple times
-		// only update during the first run
-		if ($this->installedVersion === '-1') {
-			return;
-		}
-
-		// delete left-over from old encryption which is no longer needed
-		$this->config->deleteAppValue('files_encryption', 'ocsid');
-		$this->config->deleteAppValue('files_encryption', 'types');
-		$this->config->deleteAppValue('files_encryption', 'enabled');
-
-		$oldAppValues = $this->connection->getQueryBuilder();
-		$oldAppValues->select('*')
-			->from('appconfig')
-			->where($oldAppValues->expr()->eq('appid', $oldAppValues->createParameter('appid')))
-			->setParameter('appid', 'files_encryption');
-		$appSettings = $oldAppValues->execute();
-
-		while ($row = $appSettings->fetch()) {
-			// 'installed_version' gets deleted at the end of the migration process
-			if ($row['configkey'] !== 'installed_version' ) {
-				$this->config->setAppValue('encryption', $row['configkey'], $row['configvalue']);
-				$this->config->deleteAppValue('files_encryption', $row['configkey']);
-			}
-		}
-
-		$oldPreferences = $this->connection->getQueryBuilder();
-		$oldPreferences->select('*')
-			->from('preferences')
-			->where($oldPreferences->expr()->eq('appid', $oldPreferences->createParameter('appid')))
-			->setParameter('appid', 'files_encryption');
-		$preferenceSettings = $oldPreferences->execute();
-
-		while ($row = $preferenceSettings->fetch()) {
-			$this->config->setUserValue($row['userid'], 'encryption', $row['configkey'], $row['configvalue']);
-			$this->config->deleteUserValue($row['userid'], 'files_encryption', $row['configkey']);
-		}
-	}
-
-	/**
-	 * create backup of system-wide keys
-	 */
-	private function backupSystemWideKeys() {
-		$backupDir = 'encryption_migration_backup_' . date("Y-m-d_H-i-s");
-		$this->view->mkdir($backupDir);
-		$this->view->copy('files_encryption', $backupDir . '/files_encryption');
-	}
-
-	/**
-	 * create backup of user specific keys
-	 *
-	 * @param string $user
-	 * @return bool
-	 */
-	private function backupUserKeys($user) {
-		$encryptionDir = $user . '/files_encryption';
-		if ($this->view->is_dir($encryptionDir)) {
-			$backupDir = $user . '/encryption_migration_backup_' . date("Y-m-d_H-i-s");
-			$this->view->mkdir($backupDir);
-			$this->view->copy($encryptionDir, $backupDir);
-			return true;
-		}
-		return false;
-	}
-
-	/**
-	 * rename system-wide private keys
-	 */
-	private function renameSystemPrivateKeys() {
-		$dh = $this->view->opendir('files_encryption');
-		$this->createPathForKeys('/files_encryption/' . $this->moduleId );
-		if (is_resource($dh)) {
-			while (($privateKey = readdir($dh)) !== false) {
-				if (!\OC\Files\Filesystem::isIgnoredDir($privateKey) ) {
-					if (!$this->view->is_dir('/files_encryption/' . $privateKey)) {
-						$this->view->rename('files_encryption/' . $privateKey, 'files_encryption/' . $this->moduleId . '/' . $privateKey);
-						$this->renameSystemPublicKey($privateKey);
-					}
-				}
-			}
-			closedir($dh);
-		}
-	}
-
-	/**
-	 * rename system wide public key
-	 *
-	 * @param string $privateKey private key for which we want to rename the corresponding public key
-	 */
-	private function renameSystemPublicKey($privateKey) {
-		$publicKey = substr($privateKey,0 , strrpos($privateKey, '.privateKey')) . '.publicKey';
-		$this->view->rename('files_encryption/public_keys/' . $publicKey, 'files_encryption/' . $this->moduleId . '/' . $publicKey);
-	}
-
-	/**
-	 * rename user-specific private keys
-	 *
-	 * @param string $user
-	 */
-	private function renameUsersPrivateKey($user) {
-		$oldPrivateKey = $user . '/files_encryption/' . $user . '.privateKey';
-		$newPrivateKey = $user . '/files_encryption/' . $this->moduleId . '/' . $user . '.privateKey';
-		if ($this->view->file_exists($oldPrivateKey)) {
-			$this->createPathForKeys(dirname($newPrivateKey));
-			$this->view->rename($oldPrivateKey, $newPrivateKey);
-		}
-	}
-
-	/**
-	 * rename user-specific public keys
-	 *
-	 * @param string $user
-	 */
-	private function renameUsersPublicKey($user) {
-		$oldPublicKey = '/files_encryption/public_keys/' . $user . '.publicKey';
-		$newPublicKey = $user . '/files_encryption/' . $this->moduleId . '/' . $user . '.publicKey';
-		if ($this->view->file_exists($oldPublicKey)) {
-			$this->createPathForKeys(dirname($newPublicKey));
-			$this->view->rename($oldPublicKey, $newPublicKey);
-		}
-	}
-
-	/**
-	 * rename file keys
-	 *
-	 * @param string $user
-	 * @param string $path
-	 * @param bool $trash
-	 */
-	private function renameFileKeys($user, $path, $trash = false) {
-
-		if ($this->view->is_dir($user . '/' . $path) === false) {
-			$this->logger->info('Skip dir /' . $user . '/' . $path . ': does not exist');
-			return;
-		}
-
-		$dh = $this->view->opendir($user . '/' . $path);
-
-		if (is_resource($dh)) {
-			while (($file = readdir($dh)) !== false) {
-				if (!\OC\Files\Filesystem::isIgnoredDir($file)) {
-					if ($this->view->is_dir($user . '/' . $path . '/' . $file)) {
-						$this->renameFileKeys($user, $path . '/' . $file, $trash);
-					} else {
-						$target = $this->getTargetDir($user, $path, $file, $trash);
-						if ($target !== false) {
-							$this->createPathForKeys(dirname($target));
-							$this->view->rename($user . '/' . $path . '/' . $file, $target);
-						} else {
-							$this->logger->warning(
-								'did not move key "' . $file
-								. '" could not find the corresponding file in /data/' . $user . '/files.'
-							. 'Most likely the key was already moved in a previous migration run and is already on the right place.');
-						}
-					}
-				}
-			}
-			closedir($dh);
-		}
-	}
-
-	/**
-	 * get system mount points
-	 * wrap static method so that it can be mocked for testing
-	 *
-	 * @internal
-	 * @return array
-	 */
-	protected function getSystemMountPoints() {
-		return \OC_Mount_Config::getSystemMountPoints();
-	}
-
-	/**
-	 * generate target directory
-	 *
-	 * @param string $user
-	 * @param string $keyPath
-	 * @param string $filename
-	 * @param bool $trash
-	 * @return string
-	 */
-	private function getTargetDir($user, $keyPath, $filename, $trash) {
-		if ($trash) {
-			$filePath = substr($keyPath, strlen('/files_trashbin/keys/'));
-			$targetDir = $user . '/files_encryption/keys/files_trashbin/' . $filePath . '/' . $this->moduleId . '/' . $filename;
-		} else {
-			$filePath = substr($keyPath, strlen('/files_encryption/keys/'));
-			$targetDir = $user . '/files_encryption/keys/files/' . $filePath . '/' . $this->moduleId . '/' . $filename;
-		}
-
-		if ($user === '') {
-			// for system wide mounts we need to check if the mount point really exists
-			$normalized = \OC\Files\Filesystem::normalizePath($filePath);
-			$systemMountPoints = $this->getSystemMountPoints();
-			foreach ($systemMountPoints as $mountPoint) {
-				$normalizedMountPoint = \OC\Files\Filesystem::normalizePath($mountPoint['mountpoint']) . '/';
-				if (strpos($normalized, $normalizedMountPoint) === 0)
-					return $targetDir;
-			}
-		} else if ($trash === false && $this->view->file_exists('/' . $user. '/files/' . $filePath)) {
-			return $targetDir;
-		} else if ($trash === true && $this->view->file_exists('/' . $user. '/files_trashbin/' . $filePath)) {
-				return $targetDir;
-			}
-
-		return false;
-	}
-
-	/**
-	 * delete old keys
-	 *
-	 * @param string $user
-	 */
-	private function deleteOldKeys($user) {
-		$this->view->deleteAll($user . '/files_encryption/keyfiles');
-		$this->view->deleteAll($user . '/files_encryption/share-keys');
-	}
-
-	/**
-	 * create directories for the keys recursively
-	 *
-	 * @param string $path
-	 */
-	private function createPathForKeys($path) {
-		if (!$this->view->file_exists($path)) {
-			$sub_dirs = explode('/', $path);
-			$dir = '';
-			foreach ($sub_dirs as $sub_dir) {
-				$dir .= '/' . $sub_dir;
-				if (!$this->view->is_dir($dir)) {
-					$this->view->mkdir($dir);
-				}
-			}
-		}
-	}
-}
diff --git a/apps/encryption/lib/Session.php b/apps/encryption/lib/Session.php
index c8f6ac6d0da..778d1f224ad 100644
--- a/apps/encryption/lib/Session.php
+++ b/apps/encryption/lib/Session.php
@@ -36,7 +36,6 @@ class Session {
 	const NOT_INITIALIZED = '0';
 	const INIT_EXECUTED = '1';
 	const INIT_SUCCESSFUL = '2';
-	const RUN_MIGRATION = '3';
 
 	/**
 	 * @param ISession $session
diff --git a/apps/encryption/tests/Controller/StatusControllerTest.php b/apps/encryption/tests/Controller/StatusControllerTest.php
index 0dc04b0ba1c..8e3b71e4d52 100644
--- a/apps/encryption/tests/Controller/StatusControllerTest.php
+++ b/apps/encryption/tests/Controller/StatusControllerTest.php
@@ -92,12 +92,11 @@ class StatusControllerTest extends TestCase {
 	}
 
 	public function dataTestGetStatus() {
-		return array(
-			array(Session::RUN_MIGRATION, 'interactionNeeded'),
-			array(Session::INIT_EXECUTED, 'interactionNeeded'),
-			array(Session::INIT_SUCCESSFUL, 'success'),
-			array(Session::NOT_INITIALIZED, 'interactionNeeded'),
-			array('unknown', 'error'),
-		);
+		return [
+			[Session::INIT_EXECUTED, 'interactionNeeded'],
+			[Session::INIT_SUCCESSFUL, 'success'],
+			[Session::NOT_INITIALIZED, 'interactionNeeded'],
+			['unknown', 'error'],
+		];
 	}
 }
diff --git a/apps/encryption/tests/MigrationTest.php b/apps/encryption/tests/MigrationTest.php
deleted file mode 100644
index 3854a821809..00000000000
--- a/apps/encryption/tests/MigrationTest.php
+++ /dev/null
@@ -1,597 +0,0 @@
-<?php
-/**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Björn Schießle <bjoern@schiessle.org>
- * @author Joas Schilling <coding@schilljs.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <robin@icewind.nl>
- * @author Roeland Jago Douma <roeland@famdouma.nl>
- *
- * @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\Encryption\Tests;
-
-use OC\Files\View;
-use OCA\Encryption\Migration;
-use OCP\ILogger;
-
-/**
- * Class MigrationTest
- *
- * @package OCA\Encryption\Tests
- * @group DB
- */
-class MigrationTest extends \Test\TestCase {
-
-	const TEST_ENCRYPTION_MIGRATION_USER1='test_encryption_user1';
-	const TEST_ENCRYPTION_MIGRATION_USER2='test_encryption_user2';
-	const TEST_ENCRYPTION_MIGRATION_USER3='test_encryption_user3';
-
-	/** @var \OC\Files\View */
-	private $view;
-	private $public_share_key_id = 'share_key_id';
-	private $recovery_key_id = 'recovery_key_id';
-	private $moduleId;
-
-	/** @var \PHPUnit_Framework_MockObject_MockObject|ILogger */
-	private $logger;
-
-	public static function setUpBeforeClass() {
-		parent::setUpBeforeClass();
-		\OC::$server->getUserManager()->createUser(self::TEST_ENCRYPTION_MIGRATION_USER1, 'foo');
-		\OC::$server->getUserManager()->createUser(self::TEST_ENCRYPTION_MIGRATION_USER2, 'foo');
-		\OC::$server->getUserManager()->createUser(self::TEST_ENCRYPTION_MIGRATION_USER3, 'foo');
-	}
-
-	public static function tearDownAfterClass() {
-		$user = \OC::$server->getUserManager()->get(self::TEST_ENCRYPTION_MIGRATION_USER1);
-		if ($user !== null) { $user->delete(); }
-		$user = \OC::$server->getUserManager()->get(self::TEST_ENCRYPTION_MIGRATION_USER2);
-		if ($user !== null) { $user->delete(); }
-		$user = \OC::$server->getUserManager()->get(self::TEST_ENCRYPTION_MIGRATION_USER3);
-		if ($user !== null) { $user->delete(); }
-		parent::tearDownAfterClass();
-	}
-
-
-	public function setUp() {
-		$this->logger = $this->getMockBuilder(ILogger::class)->disableOriginalConstructor()->getMock();
-		$this->view = new \OC\Files\View();
-		$this->moduleId = \OCA\Encryption\Crypto\Encryption::ID;
-	}
-
-	/**
-	 * @param string $uid
-	 */
-	protected function createDummyShareKeys($uid) {
-		$this->loginAsUser($uid);
-
-		$this->view->mkdir($uid . '/files_encryption/keys/folder1/folder2/folder3/file3');
-		$this->view->mkdir($uid . '/files_encryption/keys/folder1/folder2/file2');
-		$this->view->mkdir($uid . '/files_encryption/keys/folder1/file.1');
-		$this->view->mkdir($uid . '/files_encryption/keys/folder2/file.2.1');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/folder2/folder3/file3/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/folder2/folder3/file3/' . self::TEST_ENCRYPTION_MIGRATION_USER2 . '.shareKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/folder2/folder3/file3/' . self::TEST_ENCRYPTION_MIGRATION_USER3 . '.shareKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/folder2/file2/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/folder2/file2/' . self::TEST_ENCRYPTION_MIGRATION_USER2 . '.shareKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/folder2/file2/' . self::TEST_ENCRYPTION_MIGRATION_USER3 . '.shareKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/file.1/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/file.1/' . self::TEST_ENCRYPTION_MIGRATION_USER2 . '.shareKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/file.1/' . self::TEST_ENCRYPTION_MIGRATION_USER3 . '.shareKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder2/file.2.1/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder2/file.2.1/' . self::TEST_ENCRYPTION_MIGRATION_USER2 . '.shareKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder2/file.2.1/' . self::TEST_ENCRYPTION_MIGRATION_USER3 . '.shareKey'  , 'data');
-		if ($this->public_share_key_id) {
-			$this->view->file_put_contents($uid . '/files_encryption/keys/folder2/file.2.1/' . $this->public_share_key_id . '.shareKey'  , 'data');
-		}
-		if ($this->recovery_key_id) {
-			$this->view->file_put_contents($uid . '/files_encryption/keys/folder2/file.2.1/' . $this->recovery_key_id . '.shareKey'  , 'data');
-		}
-	}
-
-	/**
-	 * @param string $uid
-	 */
-	protected function createDummyUserKeys($uid) {
-		$this->loginAsUser($uid);
-
-		$this->view->mkdir($uid . '/files_encryption/');
-		$this->view->mkdir('/files_encryption/public_keys');
-		$this->view->file_put_contents($uid . '/files_encryption/' . $uid . '.privateKey', 'privateKey');
-		$this->view->file_put_contents('/files_encryption/public_keys/' . $uid . '.publicKey', 'publicKey');
-	}
-
-	/**
-	 * @param string $uid
-	 */
-	protected function createDummyFileKeys($uid) {
-		$this->loginAsUser($uid);
-
-		$this->view->mkdir($uid . '/files_encryption/keys/folder1/folder2/folder3/file3');
-		$this->view->mkdir($uid . '/files_encryption/keys/folder1/folder2/file2');
-		$this->view->mkdir($uid . '/files_encryption/keys/folder1/file.1');
-		$this->view->mkdir($uid . '/files_encryption/keys/folder2/file.2.1');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/folder2/folder3/file3/fileKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/folder2/file2/fileKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder1/file.1/fileKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files_encryption/keys/folder2/file.2.1/fileKey'  , 'data');
-	}
-
-	/**
-	 * @param string $uid
-	 */
-	protected function createDummyFiles($uid) {
-		$this->loginAsUser($uid);
-
-		$this->view->mkdir($uid . '/files/folder1/folder2/folder3/file3');
-		$this->view->mkdir($uid . '/files/folder1/folder2/file2');
-		$this->view->mkdir($uid . '/files/folder1/file.1');
-		$this->view->mkdir($uid . '/files/folder2/file.2.1');
-		$this->view->file_put_contents($uid . '/files/folder1/folder2/folder3/file3/fileKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files/folder1/folder2/file2/fileKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files/folder1/file.1/fileKey'  , 'data');
-		$this->view->file_put_contents($uid . '/files/folder2/file.2.1/fileKey'  , 'data');
-	}
-
-	/**
-	 * @param string $uid
-	 */
-	protected function createDummyFilesInTrash($uid) {
-		$this->loginAsUser($uid);
-
-		$this->view->mkdir($uid . '/files_trashbin/keys/file1.d5457864');
-		$this->view->mkdir($uid . '/files_trashbin/keys/folder1.d7437648723/file2');
-		$this->view->file_put_contents($uid . '/files_trashbin/keys/file1.d5457864/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey' , 'data');
-		$this->view->file_put_contents($uid . '/files_trashbin/keys/file1.d5457864/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey' , 'data');
-		$this->view->file_put_contents($uid . '/files_trashbin/keys/folder1.d7437648723/file2/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey' , 'data');
-
-		$this->view->file_put_contents($uid . '/files_trashbin/keys/file1.d5457864/fileKey' , 'data');
-		$this->view->file_put_contents($uid . '/files_trashbin/keys/folder1.d7437648723/file2/fileKey' , 'data');
-
-		// create the files itself
-		$this->view->mkdir($uid . '/files_trashbin/folder1.d7437648723');
-		$this->view->file_put_contents($uid . '/files_trashbin/file1.d5457864' , 'data');
-		$this->view->file_put_contents($uid . '/files_trashbin/folder1.d7437648723/file2' , 'data');
-	}
-
-	protected function createDummySystemWideKeys() {
-		$this->view->mkdir('files_encryption');
-		$this->view->mkdir('files_encryption/public_keys');
-		$this->view->file_put_contents('files_encryption/systemwide_1.privateKey', 'data');
-		$this->view->file_put_contents('files_encryption/systemwide_2.privateKey', 'data');
-		$this->view->file_put_contents('files_encryption/public_keys/systemwide_1.publicKey', 'data');
-		$this->view->file_put_contents('files_encryption/public_keys/systemwide_2.publicKey', 'data');
-	}
-
-	public function testMigrateToNewFolderStructure() {
-		$this->createDummyUserKeys(self::TEST_ENCRYPTION_MIGRATION_USER1);
-		$this->createDummyUserKeys(self::TEST_ENCRYPTION_MIGRATION_USER2);
-		$this->createDummyUserKeys(self::TEST_ENCRYPTION_MIGRATION_USER3);
-
-		$this->createDummyShareKeys(self::TEST_ENCRYPTION_MIGRATION_USER1);
-		$this->createDummyShareKeys(self::TEST_ENCRYPTION_MIGRATION_USER2);
-		$this->createDummyShareKeys(self::TEST_ENCRYPTION_MIGRATION_USER3);
-
-		$this->createDummyFileKeys(self::TEST_ENCRYPTION_MIGRATION_USER1);
-		$this->createDummyFileKeys(self::TEST_ENCRYPTION_MIGRATION_USER2);
-		$this->createDummyFileKeys(self::TEST_ENCRYPTION_MIGRATION_USER3);
-
-		$this->createDummyFiles(self::TEST_ENCRYPTION_MIGRATION_USER1);
-		$this->createDummyFiles(self::TEST_ENCRYPTION_MIGRATION_USER2);
-		$this->createDummyFiles(self::TEST_ENCRYPTION_MIGRATION_USER3);
-
-		$this->createDummyFilesInTrash(self::TEST_ENCRYPTION_MIGRATION_USER2);
-
-		// no user for system wide mount points
-		$this->createDummyFileKeys('');
-		$this->createDummyShareKeys('');
-
-		$this->createDummySystemWideKeys();
-
-		/** @var \PHPUnit_Framework_MockObject_MockObject|\OCA\Encryption\Migration $m */
-		$m = $this->getMockBuilder(Migration::class)
-			->setConstructorArgs(
-				[
-					\OC::$server->getConfig(),
-					new \OC\Files\View(),
-					\OC::$server->getDatabaseConnection(),
-					$this->logger,
-					\OC::$server->getAppManager()
-				]
-			)->setMethods(['getSystemMountPoints'])->getMock();
-
-		$m->expects($this->any())->method('getSystemMountPoints')
-			->will($this->returnValue([['mountpoint' => 'folder1'], ['mountpoint' => 'folder2']]));
-
-		$m->reorganizeFolderStructure();
-		// even if it runs twice folder should always move only once
-		$m->reorganizeFolderStructure();
-
-		$this->loginAsUser(self::TEST_ENCRYPTION_MIGRATION_USER1);
-
-		$this->assertTrue(
-			$this->view->file_exists(
-				self::TEST_ENCRYPTION_MIGRATION_USER1 . '/files_encryption/' .
-				$this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.publicKey')
-		);
-
-		$this->loginAsUser(self::TEST_ENCRYPTION_MIGRATION_USER2);
-
-		$this->assertTrue(
-			$this->view->file_exists(
-				self::TEST_ENCRYPTION_MIGRATION_USER2 . '/files_encryption/' .
-				$this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER2 . '.publicKey')
-		);
-
-		$this->loginAsUser(self::TEST_ENCRYPTION_MIGRATION_USER3);
-
-		$this->assertTrue(
-			$this->view->file_exists(
-				self::TEST_ENCRYPTION_MIGRATION_USER3 . '/files_encryption/' .
-				$this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER3 . '.publicKey')
-		);
-
-		$this->loginAsUser(self::TEST_ENCRYPTION_MIGRATION_USER1);
-
-		$this->assertTrue(
-			$this->view->file_exists(
-			    '/files_encryption/' . $this->moduleId . '/systemwide_1.publicKey')
-		);
-		$this->assertTrue(
-			$this->view->file_exists(
-				'/files_encryption/' . $this->moduleId . '/systemwide_2.publicKey')
-		);
-
-		$this->verifyNewKeyPath(self::TEST_ENCRYPTION_MIGRATION_USER1);
-		$this->verifyNewKeyPath(self::TEST_ENCRYPTION_MIGRATION_USER2);
-		$this->verifyNewKeyPath(self::TEST_ENCRYPTION_MIGRATION_USER3);
-		// system wide keys
-		$this->verifyNewKeyPath('');
-		// trash
-		$this->verifyFilesInTrash(self::TEST_ENCRYPTION_MIGRATION_USER2);
-
-	}
-
-	/**
-	 * @param string $uid
-	 */
-	protected function verifyFilesInTrash($uid) {
-		$this->loginAsUser($uid);
-
-		// share keys
-		$this->assertTrue(
-			$this->view->file_exists($uid . '/files_encryption/keys/files_trashbin/file1.d5457864/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey')
-			);
-		$this->assertTrue(
-			$this->view->file_exists($uid . '/files_encryption/keys/files_trashbin/file1.d5457864/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey')
-			);
-		$this->assertTrue(
-			$this->view->file_exists($uid . '/files_encryption/keys/files_trashbin/folder1.d7437648723/file2/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey')
-			);
-
-		// file keys
-		$this->assertTrue(
-			$this->view->file_exists($uid . '/files_encryption/keys/files_trashbin/file1.d5457864/' . $this->moduleId . '/fileKey')
-		);
-
-		$this->assertTrue(
-		$this->view->file_exists($uid . '/files_encryption/keys/files_trashbin/file1.d5457864/' . $this->moduleId . '/fileKey')
-		);
-		$this->assertTrue(
-			$this->view->file_exists($uid . '/files_encryption/keys/files_trashbin/folder1.d7437648723/file2/' . $this->moduleId . '/fileKey')
-		);
-	}
-
-	/**
-	 * @param string $uid
-	 */
-	protected function verifyNewKeyPath($uid) {
-		// private key
-		if ($uid !== '') {
-			$this->loginAsUser($uid);
-			$this->assertTrue($this->view->file_exists($uid . '/files_encryption/' . $this->moduleId . '/'. $uid . '.privateKey'));
-		}
-		// file keys
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/folder2/folder3/file3/' . $this->moduleId . '/fileKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/folder2/file2/' . $this->moduleId . '/fileKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/file.1/' . $this->moduleId . '/fileKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder2/file.2.1/' .$this->moduleId . '/fileKey'));
-		// share keys
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/folder2/folder3/file3/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/folder2/folder3/file3/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER2 . '.shareKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/folder2/folder3/file3/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER3 . '.shareKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/folder2/file2/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/folder2/file2/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER2 . '.shareKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/folder2/file2/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER3 . '.shareKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/file.1/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/file.1/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER2 . '.shareKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder1/file.1/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER3 . '.shareKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder2/file.2.1/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER1 . '.shareKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder2/file.2.1/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER2 . '.shareKey'));
-		$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder2/file.2.1/' . $this->moduleId . '/' . self::TEST_ENCRYPTION_MIGRATION_USER3 . '.shareKey'));
-		if ($this->public_share_key_id) {
-			$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder2/file.2.1/' . $this->moduleId . '/' . $this->public_share_key_id . '.shareKey'));
-		}
-		if ($this->recovery_key_id) {
-			$this->assertTrue($this->view->file_exists($uid . '/files_encryption/keys/files/folder2/file.2.1/' . $this->moduleId . '/' . $this->recovery_key_id . '.shareKey'));
-		}
-	}
-
-	private function prepareDB() {
-		$config = \OC::$server->getConfig();
-		$config->setAppValue('files_encryption', 'recoveryKeyId', 'recovery_id');
-		$config->setAppValue('files_encryption', 'publicShareKeyId', 'share_id');
-		$config->setAppValue('files_encryption', 'recoveryAdminEnabled', '1');
-		$config->setUserValue(self::TEST_ENCRYPTION_MIGRATION_USER1, 'files_encryption', 'recoverKeyEnabled', '1');
-
-		//$this->invokePrivate($config, 'cache', [[]]);
-		$cache = $this->invokePrivate(\OC::$server->getAppConfig(), 'cache');
-		unset($cache['encryption']);
-		unset($cache['files_encryption']);
-		$this->invokePrivate(\OC::$server->getAppConfig(), 'cache', [$cache]);
-
-		$cache = $this->invokePrivate($config, 'userCache');
-		unset($cache[self::TEST_ENCRYPTION_MIGRATION_USER1]);
-		$this->invokePrivate(\OC::$server->getAppConfig(), 'userCache', [$cache]);
-
-		// delete default values set by the encryption app during initialization
-
-		/** @var \OCP\IDBConnection $connection */
-		$connection = \OC::$server->getDatabaseConnection();
-		$query = $connection->getQueryBuilder();
-		$query->delete('appconfig')
-			->where($query->expr()->eq('appid', $query->createParameter('appid')))
-			->setParameter('appid', 'encryption');
-		$query->execute();
-		$query = $connection->getQueryBuilder();
-		$query->delete('preferences')
-			->where($query->expr()->eq('appid', $query->createParameter('appid')))
-			->setParameter('appid', 'encryption');
-		$query->execute();
-	}
-
-	public function testUpdateDB() {
-		$this->prepareDB();
-
-		$m = new Migration(\OC::$server->getConfig(), new \OC\Files\View(), \OC::$server->getDatabaseConnection(), $this->logger, \OC::$server->getAppManager());
-		$this->invokePrivate($m, 'installedVersion', ['0.7']);
-		$m->updateDB();
-
-		$this->verifyDB('appconfig', 'files_encryption', 0);
-		$this->verifyDB('preferences', 'files_encryption', 0);
-		$this->verifyDB('appconfig', 'encryption', 3);
-		$this->verifyDB('preferences', 'encryption', 1);
-
-	}
-
-	/**
-	 * test update db if the db already contain some existing new values
-	 */
-	public function testUpdateDBExistingNewConfig() {
-		$this->prepareDB();
-		$config = \OC::$server->getConfig();
-		$config->setAppValue('encryption', 'publicShareKeyId', 'wrong_share_id');
-		$config->setUserValue(self::TEST_ENCRYPTION_MIGRATION_USER1, 'encryption', 'recoverKeyEnabled', '9');
-
-		$m = new Migration(\OC::$server->getConfig(), new \OC\Files\View(), \OC::$server->getDatabaseConnection(), $this->logger, \OC::$server->getAppManager());
-		$this->invokePrivate($m, 'installedVersion', ['0.7']);
-		$m->updateDB();
-
-		$this->verifyDB('appconfig', 'files_encryption', 0);
-		$this->verifyDB('preferences', 'files_encryption', 0);
-		$this->verifyDB('appconfig', 'encryption', 3);
-		$this->verifyDB('preferences', 'encryption', 1);
-
-		// check if the existing values where overwritten correctly
-		/** @var \OC\DB\Connection $connection */
-		$connection = \OC::$server->getDatabaseConnection();
-		$query = $connection->getQueryBuilder();
-		$query->select('configvalue')
-			->from('appconfig')
-			->where($query->expr()->andX(
-				$query->expr()->eq('appid', $query->createParameter('appid')),
-				$query->expr()->eq('configkey', $query->createParameter('configkey'))
-			))
-			->setParameter('appid', 'encryption')
-			->setParameter('configkey', 'publicShareKeyId');
-		$result = $query->execute();
-		$value = $result->fetch();
-		$this->assertTrue(isset($value['configvalue']));
-		$this->assertSame('share_id', $value['configvalue']);
-
-		$query = $connection->getQueryBuilder();
-		$query->select('configvalue')
-			->from('preferences')
-			->where($query->expr()->andX(
-				$query->expr()->eq('appid', $query->createParameter('appid')),
-				$query->expr()->eq('configkey', $query->createParameter('configkey')),
-				$query->expr()->eq('userid', $query->createParameter('userid'))
-			))
-			->setParameter('appid', 'encryption')
-			->setParameter('configkey', 'recoverKeyEnabled')
-			->setParameter('userid', self::TEST_ENCRYPTION_MIGRATION_USER1);
-		$result = $query->execute();
-		$value = $result->fetch();
-		$this->assertTrue(isset($value['configvalue']));
-		$this->assertSame('1', $value['configvalue']);
-
-	}
-
-	/**
-	 * @param string $table
-	 * @param string $appid
-	 * @param integer $expected
-	 */
-	public function verifyDB($table, $appid, $expected) {
-		/** @var \OCP\IDBConnection $connection */
-		$connection = \OC::$server->getDatabaseConnection();
-		$query = $connection->getQueryBuilder();
-		$query->select('appid')
-			->from($table)
-			->where($query->expr()->eq('appid', $query->createParameter('appid')))
-			->setParameter('appid', $appid);
-		$result = $query->execute();
-		$values = $result->fetchAll();
-		$this->assertSame($expected,
-			count($values)
-		);
-	}
-
-	/**
-	 * test update of the file cache
-	 */
-	public function testUpdateFileCache() {
-		$this->prepareFileCache();
-		$m = new Migration(\OC::$server->getConfig(), new \OC\Files\View(), \OC::$server->getDatabaseConnection(), $this->logger, \OC::$server->getAppManager());
-		$this->invokePrivate($m, 'installedVersion', ['0.7']);
-		self::invokePrivate($m, 'updateFileCache');
-
-		// check results
-
-		/** @var \OCP\IDBConnection $connection */
-		$connection = \OC::$server->getDatabaseConnection();
-		$query = $connection->getQueryBuilder();
-		$query->select('*')
-			->from('filecache');
-		$result = $query->execute();
-		$entries = $result->fetchAll();
-		foreach($entries as $entry) {
-			if ((int)$entry['encrypted'] === 1) {
-				$this->assertSame((int)$entry['unencrypted_size'], (int)$entry['size']);
-			} else {
-				$this->assertSame((int)$entry['unencrypted_size'] - 2, (int)$entry['size']);
-			}
-		}
-
-
-	}
-
-	public function prepareFileCache() {
-		/** @var \OCP\IDBConnection $connection */
-		$connection = \OC::$server->getDatabaseConnection();
-		$query = $connection->getQueryBuilder();
-		$query->delete('filecache');
-		$query->execute();
-		$query = $connection->getQueryBuilder();
-		$result = $query->select('fileid')
-			->from('filecache')
-			->setMaxResults(1)->execute()->fetchAll();
-		$this->assertEmpty($result);
-		$query = $connection->getQueryBuilder();
-		$query->insert('filecache')
-			->values(
-				array(
-					'storage' => $query->createParameter('storage'),
-					'path_hash' => $query->createParameter('path_hash'),
-					'encrypted' => $query->createParameter('encrypted'),
-					'size' => $query->createParameter('size'),
-					'unencrypted_size' => $query->createParameter('unencrypted_size'),
-				)
-			);
-		for ($i = 1; $i < 20; $i++) {
-			$query->setParameter('storage', 1)
-				->setParameter('path_hash', $i)
-				->setParameter('encrypted', $i % 2)
-				->setParameter('size', $i)
-				->setParameter('unencrypted_size', $i + 2);
-			$this->assertSame(1,
-				$query->execute()
-			);
-		}
-		$query = $connection->getQueryBuilder();
-		$result = $query->select('fileid')
-			->from('filecache')
-			->execute()->fetchAll();
-		$this->assertSame(19, count($result));
-	}
-
-	/**
-	 * @dataProvider dataTestGetTargetDir
-	 */
-	public function testGetTargetDir($user, $keyPath, $filename, $trash, $systemMounts, $expected) {
-
-		$view = $this->getMockBuilder(View::class)
-			->disableOriginalConstructor()->getMock();
-		$view->expects($this->any())->method('file_exists')->willReturn(true);
-
-		$m = $this->getMockBuilder(Migration::class)
-			->setConstructorArgs(
-				[
-					\OC::$server->getConfig(),
-					$view,
-					\OC::$server->getDatabaseConnection(),
-					$this->logger,
-					\OC::$server->getAppManager()
-				]
-			)->setMethods(['getSystemMountPoints'])->getMock();
-
-		$m->expects($this->any())->method('getSystemMountPoints')
-			->willReturn($systemMounts);
-
-		$this->assertSame($expected,
-			$this->invokePrivate($m, 'getTargetDir', [$user, $keyPath, $filename, $trash])
-		);
-	}
-
-	public function dataTestGetTargetDir() {
-		return [
-			[
-				'user1',
-				'/files_encryption/keys/foo/bar.txt',
-				'user1.shareKey',
-				false,
-				[],
-				'user1/files_encryption/keys/files/foo/bar.txt/OC_DEFAULT_MODULE/user1.shareKey'
-			],
-			[
-				'user1',
-				'/files_trashbin/keys/foo/bar.txt',
-				'user1.shareKey',
-				true,
-				[],
-				'user1/files_encryption/keys/files_trashbin/foo/bar.txt/OC_DEFAULT_MODULE/user1.shareKey'
-			],
-			[
-				'',
-				'/files_encryption/keys/foo/bar.txt',
-				'user1.shareKey',
-				false,
-				[['mountpoint' => 'foo']],
-				'/files_encryption/keys/files/foo/bar.txt/OC_DEFAULT_MODULE/user1.shareKey'
-			],
-			[
-				'',
-				'/files_encryption/keys/foo/bar.txt',
-				'user1.shareKey',
-				false,
-				[['mountpoint' => 'foobar']],
-				false
-			],
-			[
-				'',
-				'/files_encryption/keys/foobar/bar.txt',
-				'user1.shareKey',
-				false,
-				[['mountpoint' => 'foo']],
-				false
-			]
-		];
-	}
-
-}
diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index 68be5e2d595..d0c52b96a66 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -883,7 +883,6 @@ return array(
     'OC\\Settings\\Controller\\ChangePasswordController' => $baseDir . '/settings/Controller/ChangePasswordController.php',
     'OC\\Settings\\Controller\\CheckSetupController' => $baseDir . '/settings/Controller/CheckSetupController.php',
     'OC\\Settings\\Controller\\CommonSettingsTrait' => $baseDir . '/settings/Controller/CommonSettingsTrait.php',
-    'OC\\Settings\\Controller\\EncryptionController' => $baseDir . '/settings/Controller/EncryptionController.php',
     'OC\\Settings\\Controller\\GroupsController' => $baseDir . '/settings/Controller/GroupsController.php',
     'OC\\Settings\\Controller\\LogSettingsController' => $baseDir . '/settings/Controller/LogSettingsController.php',
     'OC\\Settings\\Controller\\MailSettingsController' => $baseDir . '/settings/Controller/MailSettingsController.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index 81f21f31c21..bad67fbb03c 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -913,7 +913,6 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OC\\Settings\\Controller\\ChangePasswordController' => __DIR__ . '/../../..' . '/settings/Controller/ChangePasswordController.php',
         'OC\\Settings\\Controller\\CheckSetupController' => __DIR__ . '/../../..' . '/settings/Controller/CheckSetupController.php',
         'OC\\Settings\\Controller\\CommonSettingsTrait' => __DIR__ . '/../../..' . '/settings/Controller/CommonSettingsTrait.php',
-        'OC\\Settings\\Controller\\EncryptionController' => __DIR__ . '/../../..' . '/settings/Controller/EncryptionController.php',
         'OC\\Settings\\Controller\\GroupsController' => __DIR__ . '/../../..' . '/settings/Controller/GroupsController.php',
         'OC\\Settings\\Controller\\LogSettingsController' => __DIR__ . '/../../..' . '/settings/Controller/LogSettingsController.php',
         'OC\\Settings\\Controller\\MailSettingsController' => __DIR__ . '/../../..' . '/settings/Controller/MailSettingsController.php',
diff --git a/lib/private/Encryption/Manager.php b/lib/private/Encryption/Manager.php
index fe34ef4555b..9bec1db73e3 100644
--- a/lib/private/Encryption/Manager.php
+++ b/lib/private/Encryption/Manager.php
@@ -101,15 +101,6 @@ class Manager implements IManager {
 	 * @throws ServiceUnavailableException
 	 */
 	public function isReady() {
-		// check if we are still in transit between the old and the new encryption
-		$oldEncryption = $this->config->getAppValue('files_encryption', 'installed_version');
-		if (!empty($oldEncryption)) {
-			$warning = 'Installation is in transit between the old Encryption (ownCloud <= 8.0)
-			and the new encryption. Please enable the "Default encryption module"
-			and run \'occ encryption:migrate\'';
-			$this->logger->warning($warning);
-			return false;
-		}
 
 		if ($this->isKeyStorageReady() === false) {
 			throw new ServiceUnavailableException('Key Storage is not ready');
diff --git a/settings/Controller/EncryptionController.php b/settings/Controller/EncryptionController.php
deleted file mode 100644
index 93a51a558bf..00000000000
--- a/settings/Controller/EncryptionController.php
+++ /dev/null
@@ -1,161 +0,0 @@
-<?php
-/**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Björn Schießle <bjoern@schiessle.org>
- * @author Joas Schilling <coding@schilljs.com>
- * @author Ko- <k.stoffelen@cs.ru.nl>
- * @author Lukas Reschke <lukas@statuscode.ch>
- * @author Morris Jobke <hey@morrisjobke.de>
- *
- * @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\Settings\Controller;
-
-use OC\Files\View;
-use OCA\Encryption\Migration;
-use OCP\App\IAppManager;
-use OCP\IDBConnection;
-use OCP\IL10N;
-use OCP\AppFramework\Controller;
-use OCP\ILogger;
-use OCP\IRequest;
-use OCP\IConfig;
-use OCP\IUserManager;
-
-/**
- * @package OC\Settings\Controller
- */
-class EncryptionController extends Controller {
-
-	/** @var IL10N */
-	private $l10n;
-
-	/** @var IDBConnection */
-	private $connection;
-
-	/** @var IConfig */
-	private $config;
-
-	/** @var IUserManager */
-	private $userManager;
-
-	/** @var View */
-	private $view;
-
-	/** @var ILogger */
-	private $logger;
-
-	/** @var IAppManager */
-	private $appManager;
-
-	/**
-	 * @param string $appName
-	 * @param IRequest $request
-	 * @param IL10N $l10n
-	 * @param IConfig $config
-	 * @param IDBConnection $connection
-	 * @param IUserManager $userManager
-	 * @param View $view
-	 * @param ILogger $logger
-	 * @param IAppManager $appManager
-	 */
-	public function __construct($appName,
-								IRequest $request,
-								IL10N $l10n,
-								IConfig $config,
-								IDBConnection $connection,
-								IUserManager $userManager,
-								View $view,
-								ILogger $logger,
-								IAppManager $appManager) {
-		parent::__construct($appName, $request);
-		$this->l10n = $l10n;
-		$this->config = $config;
-		$this->connection = $connection;
-		$this->view = $view;
-		$this->userManager = $userManager;
-		$this->logger = $logger;
-		$this->appManager = $appManager;
-	}
-
-	/**
-	 * @param IConfig $config
-	 * @param View $view
-	 * @param IDBConnection $connection
-	 * @param ILogger $logger
-	 * @param IAppManager $appManager
-	 * @return Migration
-	 */
-	protected function getMigration(IConfig $config,
-								 View $view,
-								 IDBConnection $connection,
-								 ILogger $logger,
-								 IAppManager $appManager) {
-		return new Migration($config, $view, $connection, $logger, $appManager);
-	}
-
-	/**
-	 * start migration
-	 *
-	 * @return array
-	 */
-	public function startMigration() {
-        // allow as long execution on the web server as possible
-		if (strpos(@ini_get('disable_functions'), 'set_time_limit') === false) {
-			@set_time_limit(0);
-		}
-
-		try {
-
-			$migration = $this->getMigration($this->config, $this->view, $this->connection, $this->logger, $this->appManager);
-			$migration->reorganizeSystemFolderStructure();
-			$migration->updateDB();
-
-			foreach ($this->userManager->getBackends() as $backend) {
-				$limit = 500;
-				$offset = 0;
-				do {
-					$users = $backend->getUsers('', $limit, $offset);
-					foreach ($users as $user) {
-						$migration->reorganizeFolderStructureForUser($user);
-					}
-					$offset += $limit;
-				} while (count($users) >= $limit);
-			}
-
-			$migration->finalCleanUp();
-
-		} catch (\Exception $e) {
-			return [
-				'data' => [
-					'message' => (string)$this->l10n->t('A problem occurred, please check your log files (Error: %s)', [$e->getMessage()]),
-				],
-				'status' => 'error',
-			];
-		}
-
-		return [
-			'data' => [
-				'message' => (string) $this->l10n->t('Migration Completed'),
-				],
-			'status' => 'success',
-		];
-	}
-
-}
diff --git a/tests/Settings/ApplicationTest.php b/tests/Settings/ApplicationTest.php
index 32ec4c2273c..8346f668d9d 100644
--- a/tests/Settings/ApplicationTest.php
+++ b/tests/Settings/ApplicationTest.php
@@ -30,7 +30,6 @@ use OC\Settings\Controller\AppSettingsController;
 use OC\Settings\Controller\AuthSettingsController;
 use OC\Settings\Controller\CertificateController;
 use OC\Settings\Controller\CheckSetupController;
-use OC\Settings\Controller\EncryptionController;
 use OC\Settings\Controller\GroupsController;
 use OC\Settings\Controller\LogSettingsController;
 use OC\Settings\Controller\MailSettingsController;
@@ -74,7 +73,6 @@ class ApplicationTest extends TestCase {
 			[AuthSettingsController::class, Controller::class],
 			// Needs session: [CertificateController::class, Controller::class],
 			[CheckSetupController::class, Controller::class],
-			[EncryptionController::class, Controller::class],
 			[GroupsController::class, Controller::class],
 			[LogSettingsController::class, Controller::class],
 			[MailSettingsController::class, Controller::class],
diff --git a/tests/Settings/Controller/EncryptionControllerTest.php b/tests/Settings/Controller/EncryptionControllerTest.php
deleted file mode 100644
index b15a71fc016..00000000000
--- a/tests/Settings/Controller/EncryptionControllerTest.php
+++ /dev/null
@@ -1,164 +0,0 @@
-<?php
-/**
- * @author Lukas Reschke <lukas@owncloud.com>
- *
- * @copyright Copyright (c) 2015, ownCloud, Inc.
- * @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 Tests\Settings\Controller;
-
-use OC\DB\Connection;
-use OC\Files\View;
-use OC\Settings\Controller\EncryptionController;
-use OCP\App\IAppManager;
-use OCA\Encryption\Migration;
-use OCP\IConfig;
-use OCP\IL10N;
-use OCP\ILogger;
-use OCP\IRequest;
-use OCP\IUserManager;
-use OCP\UserInterface;
-use Test\TestCase;
-
-/**
- * Class EncryptionControllerTest
- *
- * @package Tests\Settings\Controller
- */
-class EncryptionControllerTest extends TestCase {
-	/** @var IRequest */
-	private $request;
-	/** @var IL10N */
-	private $l10n;
-	/** @var IConfig */
-	private $config;
-	/** @var Connection */
-	private $connection;
-	/** @var IUserManager */
-	private $userManager;
-	/** @var View */
-	private $view;
-	/** @var ILogger */
-	private $logger;
-	/** @var IAppManager */
-	private $appManager;
-	/** @var EncryptionController */
-	private $encryptionController;
-
-	public function setUp() {
-		parent::setUp();
-		$this->request = $this->getMockBuilder(IRequest::class)
-			->disableOriginalConstructor()->getMock();
-		$this->l10n = $this->getMockBuilder(IL10N::class)
-			->disableOriginalConstructor()->getMock();
-		$this->l10n->expects($this->any())
-			->method('t')
-			->will($this->returnCallback(function($message, array $replace) {
-				return vsprintf($message, $replace);
-			}));
-		$this->config = $this->getMockBuilder(IConfig::class)
-			->disableOriginalConstructor()->getMock();
-		$this->connection = $this->getMockBuilder(Connection::class)
-			->disableOriginalConstructor()->getMock();
-		$this->userManager = $this->getMockBuilder(IUserManager::class)
-			->disableOriginalConstructor()->getMock();
-		$this->view = $this->getMockBuilder(View::class)
-			->disableOriginalConstructor()->getMock();
-		$this->logger = $this->getMockBuilder(ILogger::class)
-			->disableOriginalConstructor()->getMock();
-		$this->appManager = $this->getMockBuilder('\\OCP\\App\\IAppManager')
-			->disableOriginalConstructor()->getMock();
-
-		$this->encryptionController = $this->getMockBuilder(EncryptionController::class)
-			->setConstructorArgs([
-				'settings',
-				$this->request,
-				$this->l10n,
-				$this->config,
-				$this->connection,
-				$this->userManager,
-				$this->view,
-				$this->logger,
-				$this->appManager,
-			])
-			->setMethods(['getMigration'])
-			->getMock();
-	}
-
-	public function testStartMigrationSuccessful() {
-		// we need to be able to autoload the class we're mocking
-		\OC_App::registerAutoloading('encryption', \OC_App::getAppPath('encryption'));
-
-		$migration = $this->getMockBuilder(Migration::class)
-			->disableOriginalConstructor()->getMock();
-		$this->encryptionController
-			->expects($this->once())
-			->method('getMigration')
-			->with($this->config, $this->view, $this->connection, $this->logger)
-			->will($this->returnValue($migration));
-		$migration
-			->expects($this->once())
-			->method('reorganizeSystemFolderStructure');
-		$migration
-			->expects($this->once())
-			->method('updateDB');
-		$backend = $this->getMockBuilder(UserInterface::class)
-			->getMock();
-		$this->userManager
-			->expects($this->once())
-			->method('getBackends')
-			->will($this->returnValue([$backend]));
-		$backend
-			->expects($this->once())
-			->method('getUsers')
-			->will($this->returnValue(['User 1', 'User 2']));
-		$migration
-			->expects($this->exactly(2))
-			->method('reorganizeFolderStructureForUser')
-			->withConsecutive(
-				['User 1'],
-				['User 2']
-			);
-		$migration
-			->expects($this->once())
-			->method('finalCleanUp');
-
-		$expected = [
-			'data' => [
-				'message' => 'Migration Completed',
-			],
-			'status' => 'success',
-		];
-		$this->assertSame($expected, $this->encryptionController->startMigration());
-	}
-
-	public function testStartMigrationException() {
-		$this->encryptionController
-			->expects($this->once())
-			->method('getMigration')
-			->with($this->config, $this->view, $this->connection, $this->logger)
-			->will($this->throwException(new \Exception('My error message')));
-
-		$expected = [
-			'data' => [
-				'message' => 'A problem occurred, please check your log files (Error: My error message)',
-			],
-			'status' => 'error',
-		];
-		$this->assertSame($expected, $this->encryptionController->startMigration());
-	}
-}