001 /*
002 GRANITE DATA SERVICES
003 Copyright (C) 2012 GRANITE DATA SERVICES S.A.S.
004
005 This file is part of Granite Data Services.
006
007 Granite Data Services is free software; you can redistribute it and/or modify
008 it under the terms of the GNU Library General Public License as published by
009 the Free Software Foundation; either version 2 of the License, or (at your
010 option) any later version.
011
012 Granite Data Services is distributed in the hope that it will be useful, but
013 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015 for more details.
016
017 You should have received a copy of the GNU Library General Public License
018 along with this library; if not, see <http://www.gnu.org/licenses/>.
019 */
020
021 package org.granite.client.tide.javafx;
022
023 import java.util.Observable;
024 import java.util.Observer;
025 import java.util.concurrent.Future;
026
027 import javafx.beans.property.BooleanProperty;
028 import javafx.beans.property.ReadOnlyStringWrapper;
029 import javafx.beans.property.SimpleBooleanProperty;
030 import javafx.beans.property.StringProperty;
031 import javafx.beans.value.ChangeListener;
032 import javafx.beans.value.ObservableValue;
033
034 import org.granite.client.messaging.messages.responses.FaultMessage;
035 import org.granite.client.messaging.messages.responses.FaultMessage.Code;
036 import org.granite.client.tide.Context;
037 import org.granite.client.tide.Identity;
038 import org.granite.client.tide.impl.ComponentImpl;
039 import org.granite.client.tide.server.ExceptionHandler;
040 import org.granite.client.tide.server.ServerSession;
041 import org.granite.client.tide.server.SimpleTideResponder;
042 import org.granite.client.tide.server.TideFaultEvent;
043 import org.granite.client.tide.server.TideResponder;
044 import org.granite.client.tide.server.TideResultEvent;
045
046
047 /**
048 * @author William DRAI
049 */
050 public abstract class BaseIdentity extends ComponentImpl implements Identity, ExceptionHandler {
051
052 private BooleanProperty loggedIn = new SimpleBooleanProperty(this, "loggedIn");
053 private StringProperty username = new ReadOnlyStringWrapper(this, "username", null);
054
055
056 public BooleanProperty loggedInProperty() {
057 return loggedIn;
058 }
059
060 public boolean isLoggedIn() {
061 return loggedIn.get();
062 }
063
064 public void setLoggedIn(boolean loggedIn) {
065 this.loggedIn.set(loggedIn);
066 }
067
068 public StringProperty usernameProperty() {
069 return username;
070 }
071
072 public String getUsername() {
073 return username.get();
074 }
075
076
077 protected BaseIdentity() {
078 // CDI proxying...
079 }
080
081 public BaseIdentity(final ServerSession serverSession) {
082 super(serverSession);
083
084 this.loggedIn.set(false);
085 this.loggedIn.addListener(new ChangeListener<Boolean>() {
086 @Override
087 public void changed(ObservableValue<? extends Boolean> property, Boolean oldValue, Boolean newValue) {
088 if (Boolean.TRUE.equals(newValue)) {
089 initSecurityCache();
090 serverSession.afterLogin();
091 }
092 else {
093 BaseIdentity.this.username.set(null);
094 clearSecurityCache();
095 }
096 }
097 });
098 }
099
100 /**
101 * Triggers a remote call to check is user is currently logged in
102 * Can be used at application startup to handle browser refresh cases
103 *
104 * @param resultHandler optional result handler
105 * @param faultHandler optional fault handler
106 */
107 public Future<String> checkLoggedIn(final TideResponder<String> tideResponder) {
108 return super.call("isLoggedIn", new SimpleTideResponder<String>() {
109 @Override
110 public void result(TideResultEvent<String> event) {
111 if (event.getResult() != null) {
112 BaseIdentity.this.username.set(event.getResult());
113 BaseIdentity.this.loggedIn.set(true);
114 }
115 else if (isLoggedIn()) {
116 BaseIdentity.this.loggedIn.set(false);
117
118 // Session expired, directly mark the channel as logged out
119 getServerSession().sessionExpired();
120 }
121
122 if (tideResponder != null)
123 tideResponder.result(event);
124 }
125
126 @Override
127 public void fault(TideFaultEvent event) {
128 if (tideResponder != null)
129 tideResponder.fault(event);
130 }
131 });
132 }
133
134
135 public void login(final String username, String password, final TideResponder<String> tideResponder) {
136 getServerSession().login(username, password);
137
138 clearSecurityCache();
139
140 checkLoggedIn(tideResponder);
141 }
142
143
144 public void logout(final TideResponder<Void> tideResponder) {
145 final Observer observer = new Observer() {
146 @SuppressWarnings("unchecked")
147 @Override
148 public void update(Observable logout, Object event) {
149 BaseIdentity.this.loggedIn.set(false);
150
151 if (tideResponder != null) {
152 if (event instanceof TideResultEvent)
153 tideResponder.result((TideResultEvent<Void>)event);
154 else if (event instanceof TideFaultEvent)
155 tideResponder.fault((TideFaultEvent)event);
156 }
157 }
158 };
159
160 getServerSession().logout(observer);
161 }
162
163
164 public abstract ObservableRole hasRole(String roleName);
165
166
167 protected abstract void initSecurityCache();
168
169 /**
170 * Clear the security cache
171 */
172 public abstract void clearSecurityCache();
173
174
175 @Override
176 public boolean accepts(FaultMessage emsg) {
177 return emsg.getCode() == Code.NOT_LOGGED_IN;
178 }
179
180 @Override
181 public void handle(Context context, FaultMessage emsg, TideFaultEvent faultEvent) {
182 if (isLoggedIn()) {
183 setLoggedIn(false);
184
185 // Session expired, directly mark the channel as logged out
186 getServerSession().sessionExpired();
187 }
188 }
189 }
190