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19 package org.eclipse.jetty.server.session;
20
21 import java.io.IOException;
22 import java.util.EnumSet;
23 import java.util.EventListener;
24
25 import javax.servlet.DispatcherType;
26 import javax.servlet.ServletException;
27 import javax.servlet.SessionTrackingMode;
28 import javax.servlet.http.Cookie;
29 import javax.servlet.http.HttpServletRequest;
30 import javax.servlet.http.HttpServletResponse;
31 import javax.servlet.http.HttpSession;
32 import javax.servlet.http.HttpSessionAttributeListener;
33 import javax.servlet.http.HttpSessionIdListener;
34 import javax.servlet.http.HttpSessionListener;
35
36 import org.eclipse.jetty.http.HttpCookie;
37 import org.eclipse.jetty.server.Request;
38 import org.eclipse.jetty.server.SessionManager;
39 import org.eclipse.jetty.server.handler.ScopedHandler;
40 import org.eclipse.jetty.util.log.Log;
41 import org.eclipse.jetty.util.log.Logger;
42
43
44
45
46
47 public class SessionHandler extends ScopedHandler
48 {
49 final static Logger LOG = Log.getLogger("org.eclipse.jetty.server.session");
50
51 public final static EnumSet<SessionTrackingMode> DEFAULT_TRACKING = EnumSet.of(SessionTrackingMode.COOKIE,SessionTrackingMode.URL);
52
53 @SuppressWarnings("unchecked")
54 public static final Class<? extends EventListener>[] SESSION_LISTENER_TYPES =
55 new Class[] {HttpSessionAttributeListener.class,
56 HttpSessionIdListener.class,
57 HttpSessionListener.class};
58
59
60
61
62 private SessionManager _sessionManager;
63
64
65
66
67
68 public SessionHandler()
69 {
70 this(new HashSessionManager());
71 }
72
73
74
75
76
77
78 public SessionHandler(SessionManager manager)
79 {
80 setSessionManager(manager);
81 }
82
83
84
85
86
87 public SessionManager getSessionManager()
88 {
89 return _sessionManager;
90 }
91
92
93
94
95
96
97 public void setSessionManager(SessionManager sessionManager)
98 {
99 if (isStarted())
100 throw new IllegalStateException();
101 if (sessionManager != null)
102 sessionManager.setSessionHandler(this);
103 updateBean(_sessionManager,sessionManager);
104 _sessionManager=sessionManager;
105 }
106
107
108
109
110
111 @Override
112 protected void doStart() throws Exception
113 {
114 if (_sessionManager==null)
115 setSessionManager(new HashSessionManager());
116 super.doStart();
117 }
118
119
120
121
122
123 @Override
124 protected void doStop() throws Exception
125 {
126
127 super.doStop();
128 }
129
130
131
132
133
134
135 @Override
136 public void doScope(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
137 {
138 SessionManager old_session_manager = null;
139 HttpSession old_session = null;
140 HttpSession access = null;
141 try
142 {
143 old_session_manager = baseRequest.getSessionManager();
144 old_session = baseRequest.getSession(false);
145
146 if (old_session_manager != _sessionManager)
147 {
148
149 baseRequest.setSessionManager(_sessionManager);
150 baseRequest.setSession(null);
151 checkRequestedSessionId(baseRequest,request);
152 }
153
154
155 HttpSession session = null;
156 if (_sessionManager != null)
157 {
158 session = baseRequest.getSession(false);
159 if (session != null)
160 {
161 if (session != old_session)
162 {
163 access = session;
164 HttpCookie cookie = _sessionManager.access(session,request.isSecure());
165 if (cookie != null)
166 baseRequest.getResponse().addCookie(cookie);
167 }
168 }
169 else
170 {
171 session = baseRequest.recoverNewSession(_sessionManager);
172 if (session != null)
173 baseRequest.setSession(session);
174 }
175 }
176
177 if (LOG.isDebugEnabled())
178 {
179 LOG.debug("sessionManager=" + _sessionManager);
180 LOG.debug("session=" + session);
181 }
182
183
184 if (_nextScope != null)
185 _nextScope.doScope(target,baseRequest,request,response);
186 else if (_outerScope != null)
187 _outerScope.doHandle(target,baseRequest,request,response);
188 else
189 doHandle(target,baseRequest,request,response);
190
191
192 }
193 finally
194 {
195 if (access != null)
196 _sessionManager.complete(access);
197
198 HttpSession session = baseRequest.getSession(false);
199 if (session != null && old_session == null && session != access)
200 _sessionManager.complete(session);
201
202 if (old_session_manager != null && old_session_manager != _sessionManager)
203 {
204 baseRequest.setSessionManager(old_session_manager);
205 baseRequest.setSession(old_session);
206 }
207 }
208 }
209
210
211
212
213
214 @Override
215 public void doHandle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
216 {
217
218 if (never())
219 nextHandle(target,baseRequest,request,response);
220 else if (_nextScope != null && _nextScope == _handler)
221 _nextScope.doHandle(target,baseRequest,request,response);
222 else if (_handler != null)
223 _handler.handle(target,baseRequest,request,response);
224
225 }
226
227
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232
233
234 protected void checkRequestedSessionId(Request baseRequest, HttpServletRequest request)
235 {
236 String requested_session_id = request.getRequestedSessionId();
237
238 SessionManager sessionManager = getSessionManager();
239
240 if (requested_session_id != null && sessionManager != null)
241 {
242 HttpSession session = sessionManager.getHttpSession(requested_session_id);
243 if (session != null && sessionManager.isValid(session))
244 baseRequest.setSession(session);
245 return;
246 }
247 else if (!DispatcherType.REQUEST.equals(baseRequest.getDispatcherType()))
248 return;
249
250 boolean requested_session_id_from_cookie = false;
251 HttpSession session = null;
252
253
254 if (_sessionManager.isUsingCookies())
255 {
256 Cookie[] cookies = request.getCookies();
257 if (cookies != null && cookies.length > 0)
258 {
259 final String sessionCookie=sessionManager.getSessionCookieConfig().getName();
260 for (int i = 0; i < cookies.length; i++)
261 {
262 if (sessionCookie.equalsIgnoreCase(cookies[i].getName()))
263 {
264 requested_session_id = cookies[i].getValue();
265 requested_session_id_from_cookie = true;
266
267 if (LOG.isDebugEnabled())
268 LOG.debug("Got Session ID {} from cookie",requested_session_id);
269
270 if (requested_session_id != null)
271 {
272 session = sessionManager.getHttpSession(requested_session_id);
273
274 if (session != null && sessionManager.isValid(session))
275 {
276 break;
277 }
278 }
279 else
280 {
281 LOG.warn("null session id from cookie");
282 }
283 }
284 }
285 }
286 }
287
288 if (requested_session_id == null || session == null)
289 {
290 String uri = request.getRequestURI();
291
292 String prefix = sessionManager.getSessionIdPathParameterNamePrefix();
293 if (prefix != null)
294 {
295 int s = uri.indexOf(prefix);
296 if (s >= 0)
297 {
298 s += prefix.length();
299 int i = s;
300 while (i < uri.length())
301 {
302 char c = uri.charAt(i);
303 if (c == ';' || c == '#' || c == '?' || c == '/')
304 break;
305 i++;
306 }
307
308 requested_session_id = uri.substring(s,i);
309 requested_session_id_from_cookie = false;
310 session = sessionManager.getHttpSession(requested_session_id);
311 if (LOG.isDebugEnabled())
312 LOG.debug("Got Session ID {} from URL",requested_session_id);
313 }
314 }
315 }
316
317 baseRequest.setRequestedSessionId(requested_session_id);
318 baseRequest.setRequestedSessionIdFromCookie(requested_session_id!=null && requested_session_id_from_cookie);
319 if (session != null && sessionManager.isValid(session))
320 baseRequest.setSession(session);
321 }
322
323
324
325
326
327 public void addEventListener(EventListener listener)
328 {
329 if (_sessionManager != null)
330 _sessionManager.addEventListener(listener);
331 }
332
333
334
335
336
337 public void removeEventListener(EventListener listener)
338 {
339 if (_sessionManager != null)
340 _sessionManager.removeEventListener(listener);
341 }
342
343
344 public void clearEventListeners()
345 {
346 if (_sessionManager != null)
347 _sessionManager.clearEventListeners();
348 }
349 }