owncloud / core

	 * @throws ForbiddenException

	 * @throws \OCP\Files\StorageNotAvailableException

	 */

	public function copyFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime = false) {

		if ($sourceStorage->instanceOfStorage(__CLASS__)) {

			/**

			 * @var \OC\Files\Storage\Local $sourceStorage

			 */

			$rootStorage = new Local(['datadir' => '/']);

			return $rootStorage->copy($sourceStorage->getSourcePath($sourceInternalPath), $this->getSourcePath($targetInternalPath));

		}

		return parent::copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath, $preserveMtime);

	}

	/**

	 * @param \OCP\Files\Storage\IStorage $sourceStorage

	 * @return bool

	 * @throws \OCP\Files\StorageNotAvailableException

	 */

	public function moveFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath) {

		if ($sourceStorage->instanceOfStorage(__CLASS__)) {

			/**

			 * @var \OC\Files\Storage\Local $sourceStorage

			 */

			$rootStorage = new Local(['datadir' => '/']);

			return $rootStorage->rename($sourceStorage->getLocalFile($sourceInternalPath), $this->getLocalFile($targetInternalPath));

		}

		return parent::moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);

	}

}