Add api clients for talking to remote clouds

Signed-off-by: Robin Appelman <robin@icewind.nl>

lib/composer/composer/autoload_classmap.php

@@ -779,6 +779,12 @@ return array(
     'OC\\Preview\\WatcherConnector' => $baseDir . '/lib/private/Preview/WatcherConnector.php',
     'OC\\Preview\\XBitmap' => $baseDir . '/lib/private/Preview/XBitmap.php',
     'OC\\RedisFactory' => $baseDir . '/lib/private/RedisFactory.php',
+    'OC\\Remote\\Api\\ApiBase' => $baseDir . '/lib/private/Remote/Api/ApiBase.php',
+    'OC\\Remote\\Api\\NotFoundException' => $baseDir . '/lib/private/Remote/Api/NotFoundException.php',
+    'OC\\Remote\\Api\\OCS' => $baseDir . '/lib/private/Remote/Api/OCS.php',
+    'OC\\Remote\\Credentials' => $baseDir . '/lib/private/Remote/Credentials.php',
+    'OC\\Remote\\Instance' => $baseDir . '/lib/private/Remote/Instance.php',
+    'OC\\Remote\\User' => $baseDir . '/lib/private/Remote/User.php',
     'OC\\Repair' => $baseDir . '/lib/private/Repair.php',
     'OC\\RepairException' => $baseDir . '/lib/private/RepairException.php',
     'OC\\Repair\\CleanTags' => $baseDir . '/lib/private/Repair/CleanTags.php',

lib/composer/composer/autoload_static.php

@@ -809,6 +809,12 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OC\\Preview\\WatcherConnector' => __DIR__ . '/../../..' . '/lib/private/Preview/WatcherConnector.php',
         'OC\\Preview\\XBitmap' => __DIR__ . '/../../..' . '/lib/private/Preview/XBitmap.php',
         'OC\\RedisFactory' => __DIR__ . '/../../..' . '/lib/private/RedisFactory.php',
+        'OC\\Remote\\Api\\ApiBase' => __DIR__ . '/../../..' . '/lib/private/Remote/Api/ApiBase.php',
+        'OC\\Remote\\Api\\NotFoundException' => __DIR__ . '/../../..' . '/lib/private/Remote/Api/NotFoundException.php',
+        'OC\\Remote\\Api\\OCS' => __DIR__ . '/../../..' . '/lib/private/Remote/Api/OCS.php',
+        'OC\\Remote\\Credentials' => __DIR__ . '/../../..' . '/lib/private/Remote/Credentials.php',
+        'OC\\Remote\\Instance' => __DIR__ . '/../../..' . '/lib/private/Remote/Instance.php',
+        'OC\\Remote\\User' => __DIR__ . '/../../..' . '/lib/private/Remote/User.php',
         'OC\\Repair' => __DIR__ . '/../../..' . '/lib/private/Repair.php',
         'OC\\RepairException' => __DIR__ . '/../../..' . '/lib/private/RepairException.php',
         'OC\\Repair\\CleanTags' => __DIR__ . '/../../..' . '/lib/private/Repair/CleanTags.php',

lib/private/Remote/Api/ApiBase.php

@@ -0,0 +1,96 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 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 OC\Remote\Api;
+
+use OC\Remote\Credentials;
+use OC\Remote\Instance;
+use OCP\Http\Client\IClientService;
+
+class ApiBase {
+	/** @var Instance */
+	private $instance;
+	/** @var Credentials */
+	private $credentials;
+	/** @var IClientService */
+	private $clientService;
+
+	public function __construct(Instance $instance, Credentials $credentials, IClientService $clientService) {
+		$this->instance = $instance;
+		$this->credentials = $credentials;
+		$this->clientService = $clientService;
+	}
+
+	protected function getHttpClient() {
+		return $this->clientService->newClient();
+	}
+
+	protected function addDefaultHeaders(array $headers) {
+		return array_merge([
+			'OCS-APIREQUEST' => 'true',
+			'Accept' => 'application/json'
+		], $headers);
+	}
+
+	/**
+	 * @param string $method
+	 * @param string $url
+	 * @param array $body
+	 * @param array $query
+	 * @param array $headers
+	 * @return resource|string
+	 */
+	protected function request($method, $url, array $body = [], array $query = [], array $headers = []) {
+		$fullUrl = trim($this->instance->getFullUrl(), '/') . '/' . $url;
+		$options = [
+			'query' => $query,
+			'headers' => $this->addDefaultHeaders($headers),
+			'auth' => [$this->credentials->getUsername(), $this->credentials->getPassword()]
+		];
+		if ($body) {
+			$options['body'] = $body;
+		}
+
+		$client = $this->getHttpClient();
+
+		switch ($method) {
+			case 'get':
+				$response = $client->get($fullUrl, $options);
+				break;
+			case 'post':
+				$response = $client->post($fullUrl, $options);
+				break;
+			case 'put':
+				$response = $client->put($fullUrl, $options);
+				break;
+			case 'delete':
+				$response = $client->delete($fullUrl, $options);
+				break;
+			case 'options':
+				$response = $client->options($fullUrl, $options);
+				break;
+			default:
+				throw new \InvalidArgumentException('Invalid method ' . $method);
+		}
+
+		return $response->getBody();
+	}
+}

lib/private/Remote/Api/NotFoundException.php

@@ -0,0 +1,27 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 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 OC\Remote\Api;
+
+
+class NotFoundException extends \Exception {
+
+}

lib/private/Remote/Api/OCS.php

@@ -0,0 +1,66 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 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 OC\Remote\Api;
+
+
+use OC\ForbiddenException;
+use OC\Remote\User;
+use OCP\API;
+
+class OCS extends ApiBase {
+	/**
+	 * @param string $method
+	 * @param string $url
+	 * @param array $body
+	 * @param array $query
+	 * @param array $headers
+	 * @return array
+	 * @throws ForbiddenException
+	 * @throws NotFoundException
+	 * @throws \Exception
+	 */
+	protected function request($method, $url, array $body = [], array $query = [], array $headers = []) {
+		$response = json_decode(parent::request($method, '/ocs/v2.php/' . $url, $body, $query, $headers), true);
+		if (!isset($result['ocs']) || !isset($result['ocs']['meta'])) {
+			throw new \Exception('Invalid ocs response');
+		}
+		if ($response['ocs']['meta']['statuscode'] === API::RESPOND_UNAUTHORISED) {
+			throw new ForbiddenException();
+		}
+		if ($response['ocs']['meta']['statuscode'] === API::RESPOND_NOT_FOUND) {
+			throw new NotFoundException();
+		}
+		if ($response['ocs']['meta']['status'] !== 'ok') {
+			throw new \Exception('Unknown ocs error ' . $response['ocs']['meta']['message']);
+		}
+
+		return $response['ocs']['data'];
+	}
+
+	public function getUser($userId) {
+		return new User($this->request('get', 'cloud/users/' . $userId));
+	}
+
+	public function getCapabilities() {
+		return $this->request('get', 'cloud/capabilities');
+	}
+}

lib/private/Remote/Credentials.php

@@ -0,0 +1,53 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 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 OC\Remote;
+
+
+class Credentials {
+	/** @var string */
+	private $user;
+	/** @var string */
+	private $password;
+
+	/**
+	 * @param string $user
+	 * @param string $password
+	 */
+	public function __construct($user, $password) {
+		$this->user = $user;
+		$this->password = $password;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getUsername() {
+		return $this->user;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getPassword() {
+		return $this->password;
+	}
+}

lib/private/Remote/Instance.php

@@ -0,0 +1,127 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 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 OC\Remote;
+
+use OCP\Http\Client\IClientService;
+use OCP\ICache;
+
+/**
+ * Provides some basic info about a remote Nextcloud instance
+ */
+class Instance {
+	/** @var string */
+	private $url;
+
+	/** @var ICache */
+	private $cache;
+
+	/** @var IClientService */
+	private $clientService;
+
+	private $status;
+
+	/**
+	 * @param string $url
+	 * @param ICache $cache
+	 * @param IClientService $clientService
+	 */
+	public function __construct($url, ICache $cache, IClientService $clientService) {
+		$url = str_replace('https://', '', $url);
+		$this->url = str_replace('http://', '', $url);
+		$this->cache = $cache;
+		$this->clientService = $clientService;
+	}
+
+	/**
+	 * @return string The url of the remote server without protocol
+	 */
+	public function getUrl() {
+		return $this->url;
+	}
+
+	/**
+	 * @return string The of of the remote server with protocol
+	 */
+	public function getFullUrl() {
+		return $this->getProtocol() . '://' . $this->getUrl();
+	}
+
+	/**
+	 * @return string The full version string in '13.1.2.3' format
+	 */
+	public function getVersion() {
+		$status = $this->getStatus();
+		return $status['version'];
+	}
+
+	/**
+	 * @return string 'http' or 'https'
+	 */
+	public function getProtocol() {
+		$status = $this->getStatus();
+		return $status['protocol'];
+	}
+
+	/**
+	 * Check that the remote server is installed and not in maintenance mode
+	 *
+	 * @return bool
+	 */
+	public function isActive() {
+		$status = $this->getStatus();
+		return $status['installed'] && !$status['maintenance'];
+	}
+
+	private function getStatus() {
+		if ($this->status) {
+			return $this->status;
+		}
+		$key = 'remote/' . $this->url . '/status';
+		$status = $this->cache->get($key);
+		if (!$status) {
+			$response = $this->downloadStatus('https://' . $this->getUrl() . '/status.php');
+			$protocol = 'https';
+			if (!$response) {
+				$response = $this->downloadStatus('http://' . $this->getUrl() . '/status.php');
+				$protocol = 'http';
+			}
+			$status = json_decode($response, true);
+			if ($status) {
+				$status['protocol'] = $protocol;
+			}
+			if ($status) {
+				$this->cache->set($key, $status, 5 * 60);
+				$this->status = $status;
+			}
+		}
+		return $status;
+	}
+
+	private function downloadStatus($url) {
+		try {
+			$request = $this->clientService->newClient()->get($url);
+			return $request->getBody();
+		} catch (\Exception $e) {
+			return false;
+		}
+	}
+}

lib/private/Remote/User.php

@@ -0,0 +1,124 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 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 OC\Remote;
+
+
+class User {
+	/** @var array */
+	private $data;
+
+	public function __construct(array $data) {
+		$this->data = $data;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function getUserId() {
+		return $this->data['id'];
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getEmail() {
+		return $this->data['email'];
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getDisplayName() {
+		return $this->data['displayname'];
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getPhone() {
+		return $this->data['phone'];
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getAddress() {
+		return $this->data['address'];
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getWebsite() {
+		return $this->data['website'];
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getTwitter() {
+		return isset($this->data['twitter']) ? $this->data['twitter'] : '';
+	}
+
+	/**
+	 * @return string[]
+	 */
+	public function getGroups() {
+		return $this->data['groups'];
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getLanguage() {
+		return $this->data['language'];
+	}
+
+	/**
+	 * @return int
+	 */
+	public function getUsedSpace() {
+		return $this->data['quota']['used'];
+	}
+
+	/**
+	 * @return int
+	 */
+	public function getFreeSpace() {
+		return $this->data['quota']['free'];
+	}
+
+	/**
+	 * @return int
+	 */
+	public function getTotalSpace() {
+		return $this->data['quota']['total'];
+	}
+
+	/**
+	 * @return int
+	 */
+	public function getQuota() {
+		return $this->data['quota']['quota'];
+	}
+}