fix setting mountpoint and auth backend of external storages

apps/files_external/service/dbconfigservice.php

@@ -212,6 +212,34 @@ class DBConfigService {
 		$query->execute();
 	}
 
+	/**
+	 * @param int $mountId
+	 * @param string $newMountPoint
+	 */
+	public function setMountPoint($mountId, $newMountPoint) {
+		$builder = $this->connection->getQueryBuilder();
+
+		$query = $builder->update('external_mounts')
+			->set('mount_point', $builder->createNamedParameter($newMountPoint))
+			->where($builder->expr()->eq('mount_id', $builder->createNamedParameter($mountId, \PDO::PARAM_INT)));
+
+		$query->execute();
+	}
+
+	/**
+	 * @param int $mountId
+	 * @param string $newAuthBackend
+	 */
+	public function setAuthBackend($mountId, $newAuthBackend) {
+		$builder = $this->connection->getQueryBuilder();
+
+		$query = $builder->update('external_mounts')
+			->set('auth_backend', $builder->createNamedParameter($newAuthBackend))
+			->where($builder->expr()->eq('mount_id', $builder->createNamedParameter($mountId, \PDO::PARAM_INT)));
+
+		$query->execute();
+	}
+
 	/**
 	 * @param int $mountId
 	 * @param string $key

apps/files_external/service/storagesservice.php

@@ -392,6 +392,14 @@ abstract class StoragesService {
 			$this->dbConfig->setOption($id, $key, $value);
 		}
 
+		if ($updatedStorage->getMountPoint() !== $oldStorage->getMountPoint()) {
+			$this->dbConfig->setMountPoint($id, $updatedStorage->getMountPoint());
+		}
+
+		if ($updatedStorage->getAuthMechanism()->getIdentifier() !== $oldStorage->getAuthMechanism()->getIdentifier()) {
+			$this->dbConfig->setAuthBackend($id, $updatedStorage->getAuthMechanism()->getIdentifier());
+		}
+
 		$this->triggerChangeHooks($oldStorage, $updatedStorage);
 
 		return $this->getStorage($id);

apps/files_external/tests/service/dbconfigservicetest.php

@@ -230,4 +230,32 @@ class DBConfigServiceTest extends TestCase {
 		$this->assertEquals($id1, $mounts[0]['mount_id']);
 		$this->assertEquals([['type' => DBConfigService::APPLICABLE_TYPE_GLOBAL, 'value' => null, 'mount_id' => $id1]], $mounts[0]['applicable']);
 	}
+
+	public function testSetMountPoint() {
+		$id1 = $this->addMount('/test', 'foo', 'bar', 100, DBConfigService::MOUNT_TYPE_ADMIN);
+		$id2 = $this->addMount('/foo', 'foo', 'bar', 100, DBConfigService::MOUNT_TYPE_ADMIN);
+
+		$this->dbConfig->setMountPoint($id1, '/asd');
+
+		$mount = $this->dbConfig->getMountById($id1);
+		$this->assertEquals('/asd', $mount['mount_point']);
+
+		// remains unchanged
+		$mount = $this->dbConfig->getMountById($id2);
+		$this->assertEquals('/foo', $mount['mount_point']);
+	}
+
+	public function testSetAuthBackend() {
+		$id1 = $this->addMount('/test', 'foo', 'bar', 100, DBConfigService::MOUNT_TYPE_ADMIN);
+		$id2 = $this->addMount('/foo', 'foo', 'bar', 100, DBConfigService::MOUNT_TYPE_ADMIN);
+
+		$this->dbConfig->setAuthBackend($id1, 'none');
+
+		$mount = $this->dbConfig->getMountById($id1);
+		$this->assertEquals('none', $mount['auth_backend']);
+
+		// remains unchanged
+		$mount = $this->dbConfig->getMountById($id2);
+		$this->assertEquals('bar', $mount['auth_backend']);
+	}
 }

apps/files_external/tests/service/storagesservicetest.php

@@ -465,4 +465,33 @@ abstract class StoragesServiceTest extends \Test\TestCase {
 			$params[Filesystem::signal_param_users]
 		);
 	}
+
+	public function testUpdateStorageMountPoint() {
+		$backend = $this->backendService->getBackend('identifier:\OCA\Files_External\Lib\Backend\SMB');
+		$authMechanism = $this->backendService->getAuthMechanism('identifier:\Auth\Mechanism');
+
+		$storage = new StorageConfig();
+		$storage->setMountPoint('mountpoint');
+		$storage->setBackend($backend);
+		$storage->setAuthMechanism($authMechanism);
+		$storage->setBackendOptions(['password' => 'testPassword']);
+
+		$savedStorage = $this->service->addStorage($storage);
+
+		$newAuthMechanism = $this->backendService->getAuthMechanism('identifier:\Other\Auth\Mechanism');
+
+		$updatedStorage = new StorageConfig($savedStorage->getId());
+		$updatedStorage->setMountPoint('mountpoint2');
+		$updatedStorage->setBackend($backend);
+		$updatedStorage->setAuthMechanism($newAuthMechanism);
+		$updatedStorage->setBackendOptions(['password' => 'password2']);
+
+		$this->service->updateStorage($updatedStorage);
+
+		$savedStorage = $this->service->getStorage($updatedStorage->getId());
+
+		$this->assertEquals('/mountpoint2', $savedStorage->getMountPoint());
+		$this->assertEquals($newAuthMechanism, $savedStorage->getAuthMechanism());
+		$this->assertEquals('password2', $savedStorage->getBackendOption('password'));
+	}
 }