wikimedia / mediawiki

	 * @param array $params

	 * @return array|FSFileBackendDirList|null

	 */

	public function getDirectoryListInternal( $fullCont, $dirRel, array $params ) {

		list( , $shortCont, ) = FileBackend::splitStoragePath( $params['dir'] );

		$contRoot = $this->containerFSRoot( $shortCont, $fullCont ); // must be valid

		$dir = ( $dirRel != '' ) ? "{$contRoot}/{$dirRel}" : $contRoot;

		$exists = is_dir( $dir );

		if ( !$exists ) {

			$this->logger->warning( __METHOD__ . "() given directory does not exist: '$dir'\n" );

			return []; // nothing under this dir

		} elseif ( !is_readable( $dir ) ) {

			$this->logger->warning( __METHOD__ . "() given directory is unreadable: '$dir'\n" );

			return null; // bad permissions?

		}

		return new FSFileBackendDirList( $dir, $params );

	}

	/**

	 * @see FileBackendStore::getFileListInternal()

	 * @param array $params

	 * @return array|FSFileBackendFileList|null

	 */

	public function getFileListInternal( $fullCont, $dirRel, array $params ) {

		list( , $shortCont, ) = FileBackend::splitStoragePath( $params['dir'] );

		$contRoot = $this->containerFSRoot( $shortCont, $fullCont ); // must be valid

		$dir = ( $dirRel != '' ) ? "{$contRoot}/{$dirRel}" : $contRoot;

		$exists = is_dir( $dir );

		if ( !$exists ) {

			$this->logger->warning( __METHOD__ . "() given directory does not exist: '$dir'\n" );

			return []; // nothing under this dir

		} elseif ( !is_readable( $dir ) ) {

			$this->logger->warning( __METHOD__ . "() given directory is unreadable: '$dir'\n" );

			return null; // bad permissions?

		}

		return new FSFileBackendFileList( $dir, $params );

	}

	protected function doGetLocalReferenceMulti( array $params ) {

		$fsFiles = []; // (path => FSFile)