| commit | author | age | ||
| 7bcebf | 1 | /* |
| U | 2 | WebBox - Dein Server. |
| 3 | Copyright (C) 2017 Ulrich Hilger, http://uhilger.de | |
| 4 | ||
| 5 | This program is free software: you can redistribute it and/or modify | |
| 6 | it under the terms of the GNU Affero General Public License as | |
| 7 | published by the Free Software Foundation, either version 3 of the | |
| 8 | License, or (at your option) any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU Affero General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Affero General Public License | |
| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 17 | */ | |
| 18 | package de.uhilger.wbx.web; | |
| 19 | ||
| 61b659 | 20 | import java.awt.Image; |
| U | 21 | import java.io.File; |
| 7bcebf | 22 | import java.io.IOException; |
| 61b659 | 23 | import java.io.OutputStream; |
| U | 24 | import java.util.logging.Logger; |
| 7bcebf | 25 | import javax.servlet.ServletException; |
| U | 26 | import javax.servlet.http.HttpServletRequest; |
| 27 | import javax.servlet.http.HttpServletResponse; | |
| 28 | import org.apache.catalina.servlets.DefaultServlet; | |
| 29 | ||
| 30 | /** | |
| 31 | * Mit dem TNServlet kann für eine Bilddatei eine | |
| 32 | * Miniaturansicht erzeugt werden, wie sie im Dateimanager | |
| 33 | * der WebBox verwendet wird. | |
| 34 | * | |
| 35 | */ | |
| 36 | public class TNServlet extends DefaultServlet { | |
| 61b659 | 37 | |
| U | 38 | private static final Logger logger = Logger.getLogger(TNServlet.class.getName()); |
| 7bcebf | 39 | |
| U | 40 | /** |
| 41 | * Diese String-Konstanten noetigenfalls in eine | |
| 42 | * Konfigurationsdatei auslagern | |
| 43 | */ | |
| 44 | public static final String TN = "_tn"; | |
| 45 | public static final String JPG = ".jpg"; | |
| 46 | public static final String JPEG = ".jpeg"; | |
| 47 | public static final String PNG = ".png"; | |
| 48 | ||
| 49 | /** | |
| 50 | * Handles the HTTP <code>GET</code> method. | |
| 51 | * | |
| 52 | * @param request servlet request | |
| 53 | * @param response servlet response | |
| 54 | * @throws ServletException if a servlet-specific error occurs | |
| 55 | * @throws IOException if an I/O error occurs | |
| 56 | */ | |
| 57 | @Override | |
| 58 | protected void doGet(HttpServletRequest request, HttpServletResponse response) | |
| 59 | throws ServletException, IOException { | |
| 60 | ||
| 61b659 | 61 | String uriStr = request.getRequestURI(); |
| U | 62 | File imgfile = new File(uriStr); |
| 63 | ||
| 64 | logger.fine("realpath of /: " + request.getServletContext().getRealPath("/")); | |
| 65 | ||
| 66 | logger.fine("imgfile: " + imgfile.getAbsolutePath()); | |
| 67 | ||
| 68 | if(uriStr.contains(TN) && (uriStr.endsWith(JPG) || uriStr.endsWith(JPEG) || uriStr.endsWith(PNG))) { | |
| 7bcebf | 69 | /* |
| U | 70 | TODO: hier mit Hilfe der Klasse Bild eine Miniaturansicht erzeugen |
| 71 | und in die Antwort schreiben | |
| 72 | */ | |
| 61b659 | 73 | //writeImageStream(Image image, int gr, String mimeType, response.getOutputStream()); |
| 7bcebf | 74 | } else { |
| U | 75 | super.doGet(request, response); |
| 76 | } | |
| 77 | ||
| 78 | ||
| 79 | } | |
| 80 | ||
| 81 | } | |
