Add cloud id resolver interface

apps/files_sharing/tests/ExternalStorageTest.php

@@ -27,7 +27,7 @@
  */
 namespace OCA\Files_Sharing\Tests;
 
-use OC\Federation\CloudId;
+use OCP\Federation\CloudId;
 use OCP\Http\Client\IClient;
 use OCP\Http\Client\IClientService;
 use OCP\Http\Client\IResponse;

lib/private/Federation/CloudIdManager.php

@@ -34,8 +34,10 @@
 use OCP\Contacts\IManager;
 use OCP\EventDispatcher\Event;
 use OCP\EventDispatcher\IEventDispatcher;
+use OCP\Federation\CloudId;
 use OCP\Federation\ICloudId;
 use OCP\Federation\ICloudIdManager;
+use OCP\Federation\ICloudIdResolver;
 use OCP\ICache;
 use OCP\ICacheFactory;
 use OCP\IURLGenerator;
@@ -52,6 +54,8 @@ class CloudIdManager implements ICloudIdManager {
 	private ICache $memCache;
 	/** @var array[] */
 	private array $cache = [];
+	/** @var ICloudIdResolver[] */
+	private array $cloudIdResolvers = [];
 
 	public function __construct(
 		IManager $contactsManager,
@@ -100,6 +104,12 @@ public function handleCardEvent(Event $event): void {
 	 */
 	public function resolveCloudId(string $cloudId): ICloudId {
 		// TODO magic here to get the url and user instead of just splitting on @
+
+		foreach ($this->cloudIdResolvers as $resolver) {
+			if ($resolver->isValidCloudId($cloudId)) {
+				return $resolver->resolveCloudId($cloudId);
+			}
+		}
 
 		if (!$this->isValidCloudId($cloudId)) {
 			throw new \InvalidArgumentException('Invalid cloud id');
@@ -246,6 +256,28 @@ protected function fixRemoteURL(string $remote): string {
 	 * @return bool
 	 */
 	public function isValidCloudId(string $cloudId): bool {
+		foreach ($this->cloudIdResolvers as $resolver) {
+			if ($resolver->isValidCloudId($cloudId)) {
+				return true;
+			}
+		}
+
 		return strpos($cloudId, '@') !== false;
 	}
+
+	/**
+	 * @param ICloudIdResolver $resolver
+	 */
+	public function registerCloudIdResolver(ICloudIdResolver $resolver) {
+		array_unshift($this->cloudIdResolvers, $resolver);
+	}
+
+	/**
+	 * @param ICloudIdResolver $resolver
+	 */
+	public function unregisterCloudIdResolver(ICloudIdResolver $resolver) {
+		if (($key = array_search($resolver, $this->cloudIdResolvers)) !== false) {
+			array_splice($this->cloudIdResolvers, $key, 1);
+		}
+	}
 }

lib/private/Federation/CloudId.php → lib/public/Federation/CloudId.php

@@ -25,9 +25,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  *
  */
-namespace OC\Federation;
-
-use OCP\Federation\ICloudId;
+namespace OCP\Federation;
 
 class CloudId implements ICloudId {
 	/** @var string */

lib/public/Federation/ICloudIdManager.php

@@ -62,4 +62,18 @@ public function getCloudId(string $user, ?string $remote): ICloudId;
 	 * @since 12.0.0
 	 */
 	public function isValidCloudId(string $cloudId): bool;
+
+	/**
+	 * @param ICloudIdResolver $resolver
+	 *
+	 * @since 26.0.0
+	 */
+	public function registerCloudIdResolver(ICloudIdResolver $resolver);
+
+	/**
+	 * @param ICloudIdResolver $resolver
+	 *
+	 * @since 26.0.0
+	 */
+	public function unregisterCloudIdResolver(ICloudIdResolver $resolver);
 }

lib/public/Federation/ICloudIdResolver.php

@@ -0,0 +1,55 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2017, Robin Appelman <[email protected]>
+ *
+ * @author Joas Schilling <[email protected]>
+ * @author Robin Appelman <[email protected]>
+ * @author Roeland Jago Douma <[email protected]>
+ * @author Sandro Mesterheide <[email protected]>
+ *
+ * @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 OCP\Federation;
+
+/**
+ * Interface for resolving federated cloud ids
+ *
+ * @since 26.0.0
+ */
+interface ICloudIdResolver {
+	/**
+	 * @param string $cloudId
+	 * @return ICloudId
+	 * @throws \InvalidArgumentException
+	 *
+	 * @since 26.0.0
+	 */
+	public function resolveCloudId(string $cloudId): ICloudId;
+
+	/**
+	 * Check if the input is a correctly formatted cloud id
+	 *
+	 * @param string $cloudId
+	 * @return bool
+	 *
+	 * @since 26.0.0
+	 */
+	public function isValidCloudId(string $cloudId): bool;
+}

tests/lib/Collaboration/Collaborators/LookupPluginTest.php

@@ -24,7 +24,7 @@
 namespace Test\Collaboration\Collaborators;
 
 use OC\Collaboration\Collaborators\LookupPlugin;
-use OC\Federation\CloudId;
+use OCP\Federation\CloudId;
 use OCP\Collaboration\Collaborators\ISearchResult;
 use OCP\Collaboration\Collaborators\SearchResultType;
 use OCP\Federation\ICloudId;

tests/lib/Federation/CloudIdTest.php

@@ -21,7 +21,7 @@
 
 namespace Test\Federation;
 
-use OC\Federation\CloudId;
+use OCP\Federation\CloudId;
 use Test\TestCase;
 
 class CloudIdTest extends TestCase {