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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  package org.eclipse.jetty.server;
20  
21  import java.util.EventListener;
22  import java.util.Set;
23  
24  import javax.servlet.SessionCookieConfig;
25  import javax.servlet.SessionTrackingMode;
26  import javax.servlet.http.Cookie;
27  import javax.servlet.http.HttpServletRequest;
28  import javax.servlet.http.HttpSession;
29  
30  import org.eclipse.jetty.http.HttpCookie;
31  import org.eclipse.jetty.server.session.SessionHandler;
32  import org.eclipse.jetty.util.component.LifeCycle;
33  
34  /* --------------------------------------------------------------------- */
35  /**
36   * Session Manager.
37   * The API required to manage sessions for a servlet context.
38   *
39   */
40  
41  /* ------------------------------------------------------------ */
42  /**
43   */
44  public interface SessionManager extends LifeCycle
45  {
46      /* ------------------------------------------------------------ */
47      /**
48       * Session cookie name.
49       * Defaults to <code>JSESSIONID</code>, but can be set with the
50       * <code>org.eclipse.jetty.servlet.SessionCookie</code> context init parameter.
51       */
52      public final static String __SessionCookieProperty = "org.eclipse.jetty.servlet.SessionCookie";
53      public final static String __DefaultSessionCookie = "JSESSIONID";
54  
55  
56      /* ------------------------------------------------------------ */
57      /**
58       * Session id path parameter name.
59       * Defaults to <code>jsessionid</code>, but can be set with the
60       * <code>org.eclipse.jetty.servlet.SessionIdPathParameterName</code> context init parameter.
61       * If set to null or "none" no URL rewriting will be done.
62       */
63      public final static String __SessionIdPathParameterNameProperty = "org.eclipse.jetty.servlet.SessionIdPathParameterName";
64      public final static String __DefaultSessionIdPathParameterName = "jsessionid";
65      public final static String __CheckRemoteSessionEncoding = "org.eclipse.jetty.servlet.CheckingRemoteSessionIdEncoding";
66  
67  
68      /* ------------------------------------------------------------ */
69      /**
70       * Session Domain.
71       * If this property is set as a ServletContext InitParam, then it is
72       * used as the domain for session cookies. If it is not set, then
73       * no domain is specified for the session cookie.
74       */
75      public final static String __SessionDomainProperty = "org.eclipse.jetty.servlet.SessionDomain";
76      public final static String __DefaultSessionDomain = null;
77  
78  
79      /* ------------------------------------------------------------ */
80      /**
81       * Session Path.
82       * If this property is set as a ServletContext InitParam, then it is
83       * used as the path for the session cookie.  If it is not set, then
84       * the context path is used as the path for the cookie.
85       */
86      public final static String __SessionPathProperty = "org.eclipse.jetty.servlet.SessionPath";
87  
88      /* ------------------------------------------------------------ */
89      /**
90       * Session Max Age.
91       * If this property is set as a ServletContext InitParam, then it is
92       * used as the max age for the session cookie.  If it is not set, then
93       * a max age of -1 is used.
94       */
95      public final static String __MaxAgeProperty = "org.eclipse.jetty.servlet.MaxAge";
96  
97      /* ------------------------------------------------------------ */
98      /**
99       * Returns the <code>HttpSession</code> with the given session id
100      *
101      * @param id the session id
102      * @return the <code>HttpSession</code> with the corresponding id or null if no session with the given id exists
103      */
104     public HttpSession getHttpSession(String id);
105 
106     /* ------------------------------------------------------------ */
107     /**
108      * Creates a new <code>HttpSession</code>.
109      *
110      * @param request the HttpServletRequest containing the requested session id
111      * @return the new <code>HttpSession</code>
112      */
113     public HttpSession newHttpSession(HttpServletRequest request);
114 
115 
116     /* ------------------------------------------------------------ */
117     /**
118      * @return true if session cookies should be HTTP-only (Microsoft extension)
119      * @see org.eclipse.jetty.http.HttpCookie#isHttpOnly()
120      */
121     public boolean getHttpOnly();
122 
123     /* ------------------------------------------------------------ */
124     /**
125      * @return the max period of inactivity, after which the session is invalidated, in seconds.
126      * @see #setMaxInactiveInterval(int)
127      */
128     public int getMaxInactiveInterval();
129 
130     /* ------------------------------------------------------------ */
131     /**
132      * Sets the max period of inactivity, after which the session is invalidated, in seconds.
133      *
134      * @param seconds the max inactivity period, in seconds.
135      * @see #getMaxInactiveInterval()
136      */
137     public void setMaxInactiveInterval(int seconds);
138 
139     /* ------------------------------------------------------------ */
140     /**
141      * Sets the {@link SessionHandler}.
142      *
143      * @param handler the <code>SessionHandler</code> object
144      */
145     public void setSessionHandler(SessionHandler handler);
146 
147     /* ------------------------------------------------------------ */
148     /**
149      * Adds an event listener for session-related events.
150      *
151      * @param listener the session event listener to add
152      *                 Individual SessionManagers implementations may accept arbitrary listener types,
153      *                 but they are expected to at least handle HttpSessionActivationListener,
154      *                 HttpSessionAttributeListener, HttpSessionBindingListener and HttpSessionListener.
155      * @see #removeEventListener(EventListener)
156      */
157     public void addEventListener(EventListener listener);
158 
159     /* ------------------------------------------------------------ */
160     /**
161      * Removes an event listener for for session-related events.
162      *
163      * @param listener the session event listener to remove
164      * @see #addEventListener(EventListener)
165      */
166     public void removeEventListener(EventListener listener);
167 
168     /* ------------------------------------------------------------ */
169     /**
170      * Removes all event listeners for session-related events.
171      *
172      * @see #removeEventListener(EventListener)
173      */
174     public void clearEventListeners();
175 
176     /* ------------------------------------------------------------ */
177     /**
178      * Gets a Cookie for a session.
179      *
180      * @param session         the session to which the cookie should refer.
181      * @param contextPath     the context to which the cookie should be linked.
182      *                        The client will only send the cookie value when requesting resources under this path.
183      * @param requestIsSecure whether the client is accessing the server over a secure protocol (i.e. HTTPS).
184      * @return if this <code>SessionManager</code> uses cookies, then this method will return a new
185      *         {@link Cookie cookie object} that should be set on the client in order to link future HTTP requests
186      *         with the <code>session</code>. If cookies are not in use, this method returns <code>null</code>.
187      */
188     public HttpCookie getSessionCookie(HttpSession session, String contextPath, boolean requestIsSecure);
189 
190     /* ------------------------------------------------------------ */
191     /**
192      * @return the cross context session id manager.
193      * @see #setSessionIdManager(SessionIdManager)
194      */
195     public SessionIdManager getSessionIdManager();
196 
197     /* ------------------------------------------------------------ */
198     /**
199      * @return the cross context session id manager.
200      * @deprecated use {@link #getSessionIdManager()}
201      */
202     @Deprecated
203     public SessionIdManager getMetaManager();
204 
205     /* ------------------------------------------------------------ */
206     /**
207      * Sets the cross context session id manager
208      *
209      * @param idManager the cross context session id manager.
210      * @see #getSessionIdManager()
211      */
212     public void setSessionIdManager(SessionIdManager idManager);
213 
214     /* ------------------------------------------------------------ */
215     /**
216      * @param session the session to test for validity
217      * @return whether the given session is valid, that is, it has not been invalidated.
218      */
219     public boolean isValid(HttpSession session);
220 
221     /* ------------------------------------------------------------ */
222     /**
223      * @param session the session object
224      * @return the unique id of the session within the cluster, extended with an optional node id.
225      * @see #getClusterId(HttpSession)
226      */
227     public String getNodeId(HttpSession session);
228 
229     /* ------------------------------------------------------------ */
230     /**
231      * @param session the session object
232      * @return the unique id of the session within the cluster (without a node id extension)
233      * @see #getNodeId(HttpSession)
234      */
235     public String getClusterId(HttpSession session);
236 
237     /* ------------------------------------------------------------ */
238     /**
239      * Called by the {@link SessionHandler} when a session is first accessed by a request.
240      *
241      * @param session the session object
242      * @param secure  whether the request is secure or not
243      * @return the session cookie. If not null, this cookie should be set on the response to either migrate
244      *         the session or to refresh a session cookie that may expire.
245      * @see #complete(HttpSession)
246      */
247     public HttpCookie access(HttpSession session, boolean secure);
248 
249     /* ------------------------------------------------------------ */
250     /**
251      * Called by the {@link SessionHandler} when a session is last accessed by a request.
252      *
253      * @param session the session object
254      * @see #access(HttpSession, boolean)
255      */
256     public void complete(HttpSession session);
257 
258     /**
259      * Sets the session id URL path parameter name.
260      *
261      * @param parameterName the URL path parameter name for session id URL rewriting (null or "none" for no rewriting).
262      * @see #getSessionIdPathParameterName()
263      * @see #getSessionIdPathParameterNamePrefix()
264      */
265     public void setSessionIdPathParameterName(String parameterName);
266 
267     /**
268      * @return the URL path parameter name for session id URL rewriting, by default "jsessionid".
269      * @see #setSessionIdPathParameterName(String)
270      */
271     public String getSessionIdPathParameterName();
272 
273     /**
274      * @return a formatted version of {@link #getSessionIdPathParameterName()}, by default
275      *         ";" + sessionIdParameterName + "=", for easier lookup in URL strings.
276      * @see #getSessionIdPathParameterName()
277      */
278     public String getSessionIdPathParameterNamePrefix();
279 
280     /**
281      * @return whether the session management is handled via cookies.
282      */
283     public boolean isUsingCookies();
284 
285     /**
286      * @return whether the session management is handled via URLs.
287      */
288     public boolean isUsingURLs();
289 
290     public Set<SessionTrackingMode> getDefaultSessionTrackingModes();
291 
292     public Set<SessionTrackingMode> getEffectiveSessionTrackingModes();
293 
294     public void setSessionTrackingModes(Set<SessionTrackingMode> sessionTrackingModes);
295 
296     public SessionCookieConfig getSessionCookieConfig();
297 
298     /**
299      * @return True if absolute URLs are check for remoteness before being session encoded.
300      */
301     public boolean isCheckingRemoteSessionIdEncoding();
302 
303     /**
304      * @param remote True if absolute URLs are check for remoteness before being session encoded.
305      */
306     public void setCheckingRemoteSessionIdEncoding(boolean remote);
307     
308     /* ------------------------------------------------------------ */
309     /** Change the existing session id.
310     * 
311     * @param oldClusterId the old cluster id
312     * @param oldNodeId the old node id
313     * @param newClusterId the new cluster id
314     * @param newNodeId the new node id
315     */
316     public void renewSessionId(String oldClusterId, String oldNodeId, String newClusterId, String newNodeId);  
317 }