Merge pull request #16790 from nextcloud/admin-use-user-global-auth

Allow admin configured mounts to use user configured global credentials

1 files changed, 75 insertions, 0 deletions

diff --git a/apps/files_external/lib/Lib/Auth/Password/UserGlobalAuth.php b/apps/files_external/lib/Lib/Auth/Password/UserGlobalAuth.php
new file mode 100644
index 00000000000..8ea9ad0f785
--- /dev/null
+++ b/apps/files_external/lib/Lib/Auth/Password/UserGlobalAuth.php
@@ -0,0 +1,75 @@
+<?php declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2019 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * 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
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Files_External\Lib\Auth\Password;
+
+use OCA\Files_External\Service\BackendService;
+use OCP\IL10N;
+use OCP\IUser;
+use OCA\Files_External\Lib\Auth\AuthMechanism;
+use OCA\Files_External\Lib\StorageConfig;
+use OCP\Security\ICredentialsManager;
+use OCA\Files_External\Lib\InsufficientDataForMeaningfulAnswerException;
+
+/**
+ * User provided Global Username and Password
+ */
+class UserGlobalAuth extends AuthMechanism {
+
+	private const CREDENTIALS_IDENTIFIER = 'password::global';
+
+	/** @var ICredentialsManager */
+	protected $credentialsManager;
+
+	public function __construct(IL10N $l, ICredentialsManager $credentialsManager) {
+		$this->credentialsManager = $credentialsManager;
+
+		$this
+			->setIdentifier('password::global::user')
+			->setVisibility(BackendService::VISIBILITY_DEFAULT)
+			->setScheme(self::SCHEME_PASSWORD)
+			->setText($l->t('Global credentials, user entered'));
+	}
+
+	public function saveBackendOptions(IUser $user, $id, $backendOptions) {
+		// make sure we're not setting any unexpected keys
+		$credentials = [
+			'user' => $backendOptions['user'],
+			'password' => $backendOptions['password'],
+		];
+		$this->credentialsManager->store($user->getUID(), self::CREDENTIALS_IDENTIFIER, $credentials);
+	}
+
+	public function manipulateStorageConfig(StorageConfig &$storage, IUser $user = null) {
+		if ($user === null) {
+			throw new InsufficientDataForMeaningfulAnswerException('No credentials saved');
+		}
+
+		$uid = $user->getUID();
+		$credentials = $this->credentialsManager->retrieve($uid, self::CREDENTIALS_IDENTIFIER);
+
+		if (is_array($credentials)) {
+			$storage->setBackendOption('user', $credentials['user']);
+			$storage->setBackendOption('password', $credentials['password']);
+		}
+	}
+
+}