Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
DefaultSessionValidator |
|
| 7.0;7 |
1 | package org.apache.turbine.modules.actions.sessionvalidator; | |
2 | ||
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 | ||
22 | import org.apache.commons.configuration.Configuration; | |
23 | import org.apache.commons.lang.StringUtils; | |
24 | import org.apache.commons.logging.Log; | |
25 | import org.apache.commons.logging.LogFactory; | |
26 | import org.apache.turbine.Turbine; | |
27 | import org.apache.turbine.TurbineConstants; | |
28 | import org.apache.turbine.annotation.TurbineConfiguration; | |
29 | import org.apache.turbine.annotation.TurbineService; | |
30 | import org.apache.turbine.om.security.User; | |
31 | import org.apache.turbine.pipeline.PipelineData; | |
32 | import org.apache.turbine.services.security.SecurityService; | |
33 | import org.apache.turbine.util.RunData; | |
34 | ||
35 | /** | |
36 | * The SessionValidator attempts to retrieve the User object from the | |
37 | * Servlet API session that is associated with the request. If the | |
38 | * data cannot be retrieved, it is handled here. If the user has not | |
39 | * been marked as being logged into the system, the user is rejected | |
40 | * and the screen is set to the screen.homepage value in | |
41 | * TurbineResources.properties. | |
42 | * | |
43 | * <p> | |
44 | * | |
45 | * Other systems generally have a database table which stores this | |
46 | * information, but we take advantage of the Servlet API here to save | |
47 | * a hit to the database for each and every connection that a user | |
48 | * makes. | |
49 | * | |
50 | * <p> | |
51 | * | |
52 | * This action is special in that it should only be executed by the | |
53 | * Turbine servlet. | |
54 | * | |
55 | * @author <a href="mailto:mbryson@mont.mindspring.com">Dave Bryson</a> | |
56 | * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> | |
57 | * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a> | |
58 | * @version $Id: DefaultSessionValidator.java 1695634 2015-08-13 00:35:47Z tv $ | |
59 | */ | |
60 | 0 | public class DefaultSessionValidator |
61 | extends SessionValidator | |
62 | { | |
63 | /** Logging */ | |
64 | 0 | private static Log log = LogFactory.getLog(DefaultSessionValidator.class); |
65 | ||
66 | @TurbineService | |
67 | private SecurityService security; | |
68 | ||
69 | @TurbineConfiguration | |
70 | private Configuration conf; | |
71 | ||
72 | /** | |
73 | * Execute the action. The default is to populate the PipelineData | |
74 | * object and, if the user is unknown, to force a login screen (as | |
75 | * set in the tr.props). | |
76 | * | |
77 | * @see org.apache.turbine.modules.screens.error.InvalidState | |
78 | * @param pipelineData Turbine PipelineData context information. | |
79 | * @throws Exception The anonymous user could not be obtained | |
80 | * from the security service | |
81 | */ | |
82 | @Override | |
83 | public void doPerform(PipelineData pipelineData) | |
84 | throws Exception | |
85 | { | |
86 | 0 | RunData data = getRunData(pipelineData); |
87 | // Pull user from session. | |
88 | 0 | data.populate(); |
89 | ||
90 | // The user may have not logged in, so create a "guest/anonymous" user. | |
91 | 0 | if (data.getUser() == null) |
92 | { | |
93 | 0 | log.debug("Fixing up empty User Object!"); |
94 | 0 | User anonymousUser = security.getAnonymousUser(); |
95 | 0 | data.setUser(anonymousUser); |
96 | 0 | data.save(); |
97 | } | |
98 | ||
99 | // Make sure the User has logged into the system. | |
100 | 0 | if (!data.getUser().hasLoggedIn()) |
101 | { | |
102 | // only set the message if nothing else has already set it | |
103 | // (e.g. the LogoutUser action). | |
104 | 0 | if (StringUtils.isEmpty(data.getMessage())) |
105 | { | |
106 | 0 | data.setMessage(conf.getString(TurbineConstants.LOGIN_MESSAGE)); |
107 | } | |
108 | ||
109 | // set the screen to be the login page | |
110 | 0 | data.setScreen(conf.getString(TurbineConstants.SCREEN_LOGIN)); |
111 | ||
112 | // We're not doing any actions buddy! (except action.login which | |
113 | // will have been performed already) | |
114 | 0 | data.setAction(null); |
115 | } | |
116 | ||
117 | 0 | if (!data.hasScreen()) |
118 | { | |
119 | 0 | data.setMessage(conf.getString( |
120 | TurbineConstants.LOGIN_MESSAGE_NOSCREEN)); | |
121 | 0 | data.setScreen(conf.getString(TurbineConstants.SCREEN_HOMEPAGE)); |
122 | } | |
123 | ||
124 | 0 | if (data.getParameters().containsKey("_session_access_counter")) |
125 | { | |
126 | // See comments in screens.error.InvalidState. | |
127 | 0 | if (data.getParameters().getInt("_session_access_counter") |
128 | < (((Integer) data.getUser().getTemp( | |
129 | "_session_access_counter")).intValue() - 1)) | |
130 | { | |
131 | 0 | data.getUser().setTemp("prev_screen", data.getScreen()); |
132 | 0 | data.getUser().setTemp("prev_parameters", data.getParameters()); |
133 | 0 | data.setScreen(conf.getString( |
134 | TurbineConstants.SCREEN_INVALID_STATE)); | |
135 | 0 | data.setAction(""); |
136 | } | |
137 | } | |
138 | ||
139 | // Comply with Turbine 4.0 standards | |
140 | 0 | pipelineData.get(Turbine.class).put(User.class, data.getUser()); |
141 | 0 | } |
142 | } |