NameServlet.java

  1. /*
  2.  * Copyright (C) 2020-2024 by Savoir-faire Linux
  3.  *
  4.  * This program is free software; you can redistribute it and/or modify
  5.  * it under the terms of the GNU General Public License as published by
  6.  * the Free Software Foundation; either version 3 of the License, or
  7.  * (at your option) any later version.
  8.  *
  9.  * This program is distributed in the hope that it will be useful,
  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12.  * GNU General Public License for more details.
  13.  *
  14.  * You should have received a copy of the GNU General Public License
  15.  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  16.  */
  17. package net.jami.jams.server.servlets.api.jaminameserver;

  18. import static net.jami.jams.server.Server.nameServer;

  19. import com.google.gson.Gson;

  20. import jakarta.servlet.ServletException;
  21. import jakarta.servlet.annotation.WebServlet;
  22. import jakarta.servlet.http.HttpServlet;
  23. import jakarta.servlet.http.HttpServletRequest;
  24. import jakarta.servlet.http.HttpServletResponse;

  25. import net.jami.jams.common.jami.NameLookupResponse;
  26. import net.jami.jams.common.serialization.adapters.GsonFactory;
  27. import net.jami.jams.common.serialization.tomcat.TomcatCustomErrorHandler;

  28. import java.io.IOException;

  29. @WebServlet("/api/nameserver/name/*")
  30. public class NameServlet extends HttpServlet {
  31.     private final Gson gson = GsonFactory.createGson();

  32.     /**
  33.      * @apiVersion 1.0.0
  34.      * @api {get} /api/nameserver/name/* Look up a user on the name server
  35.      * @apiName getName
  36.      * @apiGroup NameServer
  37.      * @apiSuccess (200) {path} String username
  38.      * @apiSuccessExample {json} Success-Response: { "publickey": "", "signature": "", "name":
  39.      *     "sidokhine6", "addr": "0d1f0002ce728d6aa8b98b5227c75fc773735f9e" }
  40.      * @apiError (404) {null} null user does not exist
  41.      * @apiError (500) {null} null was unable to fetch user information
  42.      */
  43.     @Override
  44.     protected void doGet(HttpServletRequest req, HttpServletResponse resp)
  45.             throws ServletException, IOException {
  46.         NameLookupResponse nameLookupResponse =
  47.                 nameServer.getAddressFromName(req.getPathInfo().replace("/", ""));
  48.         resp.setContentType("application/json;charset=UTF-8");
  49.         if (nameLookupResponse == null)
  50.             TomcatCustomErrorHandler.sendCustomError(resp, 404, "name not found");
  51.         else {
  52.             resp.getOutputStream().write(gson.toJson(nameLookupResponse).getBytes());
  53.             resp.flushBuffer();
  54.         }
  55.     }
  56. }