1 /*
2 * $Id$
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21 package org.apache.struts.apps.mailreader.actions;
22
23 import jakarta.servlet.http.HttpServletRequest;
24 import jakarta.servlet.http.HttpServletResponse;
25
26 import org.apache.struts.action.ActionForm;
27 import org.apache.struts.action.ActionForward;
28 import org.apache.struts.action.ActionMapping;
29 import org.apache.struts.action.ActionMessages;
30 import org.apache.struts.apps.mailreader.dao.User;
31
32 /**
33 * <p>
34 * Validate a user logon.
35 * </p>
36 *
37 * @version $Rev$ $Date$
38 */
39 public final class LogonAction extends BaseAction {
40 private static final long serialVersionUID = 9026910533050605143L;
41
42 /**
43 * <p>
44 * Use "username" and "password" fields from ActionForm to retrieve a User
45 * object from the database. If credentials are not valid, or database
46 * has disappeared, post error messages and forward to input.
47 * </p>
48 *
49 * @param mapping The ActionMapping used to select this instance
50 * @param form The optional ActionForm bean for this request (if any)
51 * @param request The HTTP request we are processing
52 * @param response The HTTP response we are creating
53 * @throws Exception if the application business logic throws
54 * an exception
55 */
56 public ActionForward execute(
57 ActionMapping mapping,
58 ActionForm form,
59 HttpServletRequest request,
60 HttpServletResponse response)
61 throws Exception {
62
63 // Retrieve user
64 String username = doGet(form, USERNAME);
65 String password = doGet(form, PASSWORD);
66 ActionMessages errors = new ActionMessages();
67 User user = doGetUser(username, password, errors);
68
69 // Report back any errors, and exit if any
70 if (!errors.isEmpty()) {
71 this.saveErrors(request, errors);
72 return (mapping.getInputForward());
73 }
74
75 // Cache user object in session to signify logon
76 doCacheUser(request, user);
77
78 // Done
79 return doFindSuccess(mapping);
80 }
81 }