New file |
| | |
| | | /* |
| | | neon-fm - Dateiverwaltung fuer neon |
| | | Copyright (C) 2024 Ulrich Hilger |
| | | |
| | | 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 <https://www.gnu.org/licenses/>. |
| | | */ |
| | | package de.uhilger.neon.fm; |
| | | |
| | | import com.sun.net.httpserver.HttpContext; |
| | | import com.sun.net.httpserver.HttpExchange; |
| | | import de.uhilger.neon.FileServer; |
| | | import de.uhilger.neon.HttpHelper; |
| | | import de.uhilger.neon.HttpResponder; |
| | | import de.uhilger.fm.Catalog; |
| | | import java.io.IOException; |
| | | |
| | | /** |
| | | * Die Klasse FileCatalog liefert HTTP Methoden zur Erzeugung einer |
| | | * Liste von Dateien und Ordnern |
| | | * |
| | | * @author Ulrich Hilger |
| | | * @version 0.1, 05.11.2024 |
| | | */ |
| | | public class FileCatalog extends AbstractFileActor { |
| | | |
| | | /** |
| | | * <p>Diese Methode ist als Reaktion auf einen HTTP GET Aufruf an |
| | | * folgenden URL gedacht und liefert eine Liste des Ordnerinhalts |
| | | * im JSON-Format</p> |
| | | * |
| | | * <pre> |
| | | * Ordnerinhalt auflisten: |
| | | * http://localhost:[port]/[kontext]/pfad/zum/ordner/ |
| | | * </pre> |
| | | * |
| | | * @param exchange das Objekt mit Infos zu HTTP-Request, -Response usw. |
| | | */ |
| | | public void list(HttpExchange exchange) { |
| | | try { |
| | | init(exchange); |
| | | HttpContext ctx = exchange.getHttpContext(); |
| | | //String base = ctx.getAttributes().getOrDefault(FileServer.ATTR_FILE_BASE, "").toString(); |
| | | if(base.length() == 0) { |
| | | new HttpResponder().sendNotFound(exchange, exchange.getRequestURI().toString()); // not found |
| | | } else { |
| | | String fName = new HttpHelper().getFileName(exchange); |
| | | if (fName.endsWith(FileServer.STR_SLASH)) { // Ordnerliste erzeugen |
| | | String json = new Catalog().list(fName, ctx.getPath(), base); |
| | | if (null != json) { |
| | | new HttpResponder().antwortSenden(exchange, HttpResponder.SC_OK, json); |
| | | } else { |
| | | new HttpResponder().antwortSenden(exchange, HttpResponder.SC_OK, "{}"); // leere Liste |
| | | } |
| | | } else { |
| | | new FileServer().serveFile(exchange); // Datei ausliefern |
| | | } |
| | | } |
| | | } catch (IOException | IllegalArgumentException ex) { |
| | | fehlerAntwort(exchange, ex); |
| | | } finally { |
| | | free(); |
| | | } |
| | | } |
| | | } |