| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| DefaultLoginValve |
|
| 3.2;3,2 |
| 1 | package org.apache.turbine.pipeline; | |
| 2 | ||
| 3 | ||
| 4 | /* | |
| 5 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 6 | * or more contributor license agreements. See the NOTICE file | |
| 7 | * distributed with this work for additional information | |
| 8 | * regarding copyright ownership. The ASF licenses this file | |
| 9 | * to you under the Apache License, Version 2.0 (the | |
| 10 | * "License"); you may not use this file except in compliance | |
| 11 | * with the License. You may obtain a copy of the License at | |
| 12 | * | |
| 13 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 14 | * | |
| 15 | * Unless required by applicable law or agreed to in writing, | |
| 16 | * software distributed under the License is distributed on an | |
| 17 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 18 | * KIND, either express or implied. See the License for the | |
| 19 | * specific language governing permissions and limitations | |
| 20 | * under the License. | |
| 21 | */ | |
| 22 | ||
| 23 | ||
| 24 | import java.io.IOException; | |
| 25 | import java.util.ArrayList; | |
| 26 | import java.util.Enumeration; | |
| 27 | import java.util.List; | |
| 28 | ||
| 29 | import javax.servlet.http.HttpSession; | |
| 30 | ||
| 31 | import org.apache.turbine.Turbine; | |
| 32 | import org.apache.turbine.TurbineConstants; | |
| 33 | import org.apache.turbine.modules.Action; | |
| 34 | import org.apache.turbine.modules.ActionLoader; | |
| 35 | import org.apache.turbine.services.assemblerbroker.TurbineAssemblerBroker; | |
| 36 | import org.apache.turbine.services.velocity.VelocityService; | |
| 37 | import org.apache.turbine.util.RunData; | |
| 38 | import org.apache.turbine.util.TurbineException; | |
| 39 | import org.apache.turbine.util.template.TemplateInfo; | |
| 40 | ||
| 41 | /** | |
| 42 | * Handles the Login and Logout actions in the request process | |
| 43 | * cycle. | |
| 44 | * | |
| 45 | * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a> | |
| 46 | * @author <a href="mailto:dlr@apache.org">Daniel Rall</a> | |
| 47 | * @author <a href="mailto:peter@courcoux.biz">Peter Courcoux</a> | |
| 48 | * @version $Id: DefaultLoginValve.java 1078552 2011-03-06 19:58:46Z tv $ | |
| 49 | */ | |
| 50 | public class DefaultLoginValve | |
| 51 | extends AbstractValve | |
| 52 | { | |
| 53 | private ActionLoader actionLoader; | |
| 54 | ||
| 55 | /** | |
| 56 | * Here we can setup objects that are thread safe and can be | |
| 57 | * reused. We setup the session validator and the access | |
| 58 | * controller. | |
| 59 | */ | |
| 60 | public DefaultLoginValve() | |
| 61 | throws Exception | |
| 62 | 2 | { |
| 63 | // empty constructor | |
| 64 | 2 | } |
| 65 | ||
| 66 | /** | |
| 67 | * Initialize this valve for use in a pipeline. | |
| 68 | * | |
| 69 | * @see org.apache.turbine.pipeline.AbstractValve#initialize() | |
| 70 | */ | |
| 71 | @Override | |
| 72 | public void initialize() throws Exception | |
| 73 | { | |
| 74 | 96 | super.initialize(); |
| 75 | ||
| 76 | 96 | this.actionLoader = (ActionLoader)TurbineAssemblerBroker.getLoader(Action.NAME); |
| 77 | 96 | } |
| 78 | ||
| 79 | /** | |
| 80 | * @see org.apache.turbine.Valve#invoke(RunData, ValveContext) | |
| 81 | */ | |
| 82 | @Override | |
| 83 | public void invoke(PipelineData pipelineData, ValveContext context) | |
| 84 | throws IOException, TurbineException | |
| 85 | { | |
| 86 | try | |
| 87 | { | |
| 88 | 4 | process(pipelineData); |
| 89 | } | |
| 90 | 0 | catch (Exception e) |
| 91 | { | |
| 92 | 0 | throw new TurbineException(e); |
| 93 | 4 | } |
| 94 | ||
| 95 | // Pass control to the next Valve in the Pipeline | |
| 96 | 4 | context.invokeNext(pipelineData); |
| 97 | 2 | } |
| 98 | ||
| 99 | /** | |
| 100 | * Handles user sessions, parsing of the action from the query | |
| 101 | * string, and access control. | |
| 102 | * | |
| 103 | * @param data The run-time data. | |
| 104 | */ | |
| 105 | protected void process(PipelineData pipelineData) | |
| 106 | throws Exception | |
| 107 | { | |
| 108 | 4 | RunData data = getRunData(pipelineData); |
| 109 | // Special case for login and logout, this must happen before the | |
| 110 | // session validator is executed in order either to allow a user to | |
| 111 | // even login, or to ensure that the session validator gets to | |
| 112 | // mandate its page selection policy for non-logged in users | |
| 113 | // after the logout has taken place. | |
| 114 | 4 | String actionName = data.getAction(); |
| 115 | 4 | if (data.hasAction() && |
| 116 | actionName.equalsIgnoreCase | |
| 117 | (Turbine.getConfiguration().getString(TurbineConstants.ACTION_LOGIN_KEY)) || | |
| 118 | actionName.equalsIgnoreCase | |
| 119 | (Turbine.getConfiguration().getString(TurbineConstants.ACTION_LOGOUT_KEY))) | |
| 120 | { | |
| 121 | // If a User is logging in, we should refresh the | |
| 122 | // session here. Invalidating session and starting a | |
| 123 | // new session would seem to be a good method, but I | |
| 124 | // (JDM) could not get this to work well (it always | |
| 125 | // required the user to login twice). Maybe related | |
| 126 | // to JServ? If we do not clear out the session, it | |
| 127 | // is possible a new User may accidently (if they | |
| 128 | // login incorrectly) continue on with information | |
| 129 | // associated with the previous User. Currently the | |
| 130 | // only keys stored in the session are "turbine.user" | |
| 131 | // and "turbine.acl". | |
| 132 | 2 | if (actionName.equalsIgnoreCase |
| 133 | (Turbine.getConfiguration().getString(TurbineConstants.ACTION_LOGIN_KEY))) | |
| 134 | { | |
| 135 | @SuppressWarnings("unchecked") | |
| 136 | 2 | Enumeration<String> names = data.getSession().getAttributeNames(); |
| 137 | 2 | if (names != null) |
| 138 | { | |
| 139 | // copy keys into a new list, so we can clear the session | |
| 140 | // and not get ConcurrentModificationException | |
| 141 | 0 | List<String> nameList = new ArrayList<String>(); |
| 142 | 0 | while (names.hasMoreElements()) |
| 143 | { | |
| 144 | 0 | nameList.add(names.nextElement()); |
| 145 | } | |
| 146 | ||
| 147 | 0 | HttpSession session = data.getSession(); |
| 148 | 0 | for (String name : nameList) |
| 149 | { | |
| 150 | try | |
| 151 | { | |
| 152 | 0 | session.removeAttribute(name); |
| 153 | } | |
| 154 | 0 | catch (IllegalStateException invalidatedSession) |
| 155 | { | |
| 156 | 0 | break; |
| 157 | 0 | } |
| 158 | } | |
| 159 | } | |
| 160 | } | |
| 161 | ||
| 162 | 2 | actionLoader.exec(pipelineData, data.getAction()); |
| 163 | 2 | cleanupTemplateContext(data); |
| 164 | 2 | data.setAction(null); |
| 165 | } | |
| 166 | 4 | } |
| 167 | /** | |
| 168 | * cleans the Velocity Context if available. | |
| 169 | * | |
| 170 | * @param data A RunData Object | |
| 171 | * | |
| 172 | * @throws Exception A problem while cleaning out the Template Context occured. | |
| 173 | */ | |
| 174 | private void cleanupTemplateContext(RunData data) | |
| 175 | throws Exception | |
| 176 | { | |
| 177 | // This is Velocity specific and shouldn't be done here. | |
| 178 | // But this is a band aid until we get real listeners | |
| 179 | // here. | |
| 180 | 2 | TemplateInfo ti = data.getTemplateInfo(); |
| 181 | 2 | if (ti != null) |
| 182 | { | |
| 183 | 2 | ti.removeTemp(VelocityService.CONTEXT); |
| 184 | } | |
| 185 | 2 | } |
| 186 | } |