| /** |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. See accompanying LICENSE file. |
| */ |
| package org.apache.hadoop.security.authentication.examples; |
| |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServlet; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.text.MessageFormat; |
| |
| /** |
| * Example servlet that returns the user and principal of the request. |
| */ |
| public class WhoServlet extends HttpServlet { |
| |
| @Override |
| protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { |
| resp.setContentType("text/plain"); |
| resp.setStatus(HttpServletResponse.SC_OK); |
| String user = req.getRemoteUser(); |
| String principal = (req.getUserPrincipal() != null) ? req.getUserPrincipal().getName() : null; |
| Writer writer = resp.getWriter(); |
| writer.write(MessageFormat.format("You are: user[{0}] principal[{1}]\n", user, principal)); |
| } |
| |
| @Override |
| protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { |
| doGet(req, resp); |
| } |
| } |