Move Encryption app to PSR-4 (#24524)

* Move Encryption to PSR-4

* Move encryption tests to PSR-4

* Fix the tests

1 files changed, 201 insertions, 0 deletions

diff --git a/apps/encryption/lib/Util.php b/apps/encryption/lib/Util.php
new file mode 100644
index 00000000000..e87ed478a1a
--- /dev/null
+++ b/apps/encryption/lib/Util.php
@@ -0,0 +1,201 @@
+<?php
+/**
+ * @author Björn Schießle <schiessle@owncloud.com>
+ * @author Clark Tomlinson <fallen013@gmail.com>
+ * @author Phil Davis <phil.davis@inf.org>
+ *
+ * @copyright Copyright (c) 2016, 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 OCA\Encryption;
+
+
+use OC\Files\View;
+use OCA\Encryption\Crypto\Crypt;
+use OCP\IConfig;
+use OCP\ILogger;
+use OCP\IUser;
+use OCP\IUserManager;
+use OCP\IUserSession;
+use OCP\PreConditionNotMetException;
+
+class Util {
+	/**
+	 * @var View
+	 */
+	private $files;
+	/**
+	 * @var Crypt
+	 */
+	private $crypt;
+	/**
+	 * @var ILogger
+	 */
+	private $logger;
+	/**
+	 * @var bool|IUser
+	 */
+	private $user;
+	/**
+	 * @var IConfig
+	 */
+	private $config;
+	/**
+	 * @var IUserManager
+	 */
+	private $userManager;
+
+	/**
+	 * Util constructor.
+	 *
+	 * @param View $files
+	 * @param Crypt $crypt
+	 * @param ILogger $logger
+	 * @param IUserSession $userSession
+	 * @param IConfig $config
+	 * @param IUserManager $userManager
+	 */
+	public function __construct(View $files,
+								Crypt $crypt,
+								ILogger $logger,
+								IUserSession $userSession,
+								IConfig $config,
+								IUserManager $userManager
+	) {
+		$this->files = $files;
+		$this->crypt = $crypt;
+		$this->logger = $logger;
+		$this->user = $userSession && $userSession->isLoggedIn() ? $userSession->getUser() : false;
+		$this->config = $config;
+		$this->userManager = $userManager;
+	}
+
+	/**
+	 * check if recovery key is enabled for user
+	 *
+	 * @param string $uid
+	 * @return bool
+	 */
+	public function isRecoveryEnabledForUser($uid) {
+		$recoveryMode = $this->config->getUserValue($uid,
+			'encryption',
+			'recoveryEnabled',
+			'0');
+
+		return ($recoveryMode === '1');
+	}
+
+	/**
+	 * check if the home storage should be encrypted
+	 *
+	 * @return bool
+	 */
+	public function shouldEncryptHomeStorage() {
+		$encryptHomeStorage = $this->config->getAppValue(
+			'encryption',
+			'encryptHomeStorage',
+			'1'
+		);
+
+		return ($encryptHomeStorage === '1');
+	}
+
+	/**
+	 * set the home storage encryption on/off
+	 *
+	 * @param bool $encryptHomeStorage
+	 */
+	public function setEncryptHomeStorage($encryptHomeStorage) {
+		$value = $encryptHomeStorage ? '1' : '0';
+		$this->config->setAppValue(
+			'encryption',
+			'encryptHomeStorage',
+			$value
+		);
+	}
+
+	/**
+	 * check if master key is enabled
+	 *
+	 * @return bool
+	 */
+	public function isMasterKeyEnabled() {
+		$userMasterKey = $this->config->getAppValue('encryption', 'useMasterKey', '0');
+		return ($userMasterKey === '1');
+	}
+
+	/**
+	 * @param $enabled
+	 * @return bool
+	 */
+	public function setRecoveryForUser($enabled) {
+		$value = $enabled ? '1' : '0';
+
+		try {
+			$this->config->setUserValue($this->user->getUID(),
+				'encryption',
+				'recoveryEnabled',
+				$value);
+			return true;
+		} catch (PreConditionNotMetException $e) {
+			return false;
+		}
+	}
+
+	/**
+	 * @param string $uid
+	 * @return bool
+	 */
+	public function userHasFiles($uid) {
+		return $this->files->file_exists($uid . '/files');
+	}
+
+	/**
+	 * get owner from give path, path relative to data/ expected
+	 *
+	 * @param string $path relative to data/
+	 * @return string
+	 * @throws \BadMethodCallException
+	 */
+	public function getOwner($path) {
+		$owner = '';
+		$parts = explode('/', $path, 3);
+		if (count($parts) > 1) {
+			$owner = $parts[1];
+			if ($this->userManager->userExists($owner) === false) {
+				throw new \BadMethodCallException('Unknown user: ' .
+				'method expects path to a user folder relative to the data folder');
+			}
+
+		}
+
+		return $owner;
+	}
+
+	/**
+	 * get storage of path
+	 *
+	 * @param string $path
+	 * @return \OC\Files\Storage\Storage
+	 */
+	public function getStorage($path) {
+		$storage = $this->files->getMount($path)->getStorage();
+		return $storage;
+	}
+
+}