+//
+// ========================================================================
+// Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+// ------------------------------------------------------------------------
+// All rights reserved. This program and the accompanying materials
+// are made available under the terms of the Eclipse Public License v1.0
+// and Apache License v2.0 which accompanies this distribution.
+//
+// The Eclipse Public License is available at
+// http://www.eclipse.org/legal/epl-v10.html
+//
+// The Apache License v2.0 is available at
+// http://www.opensource.org/licenses/apache2.0.php
+//
+// You may elect to redistribute this code under either of these licenses.
+// ========================================================================
+//
+
+package org.eclipse.jetty.security;
+
+import java.security.SecureRandom;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Random;
+
+import javax.servlet.http.Cookie;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * @version $Rev: 4660 $ $Date: 2009-02-25 17:29:53 +0100 (Wed, 25 Feb 2009) $
+ */
+public class HashCrossContextPsuedoSession<T> implements CrossContextPsuedoSession<T>
+{
+ private final String _cookieName;
+
+ private final String _cookiePath;
+
+ private final Random _random = new SecureRandom();
+
+ private final Map<String, T> _data = new HashMap<String, T>();
+
+ public HashCrossContextPsuedoSession(String cookieName, String cookiePath)
+ {
+ this._cookieName = cookieName;
+ this._cookiePath = cookiePath == null ? "/" : cookiePath;
+ }
+
+ public T fetch(HttpServletRequest request)
+ {
+ Cookie[] cookies = request.getCookies();
+ if (cookies == null)
+ return null;
+
+ for (Cookie cookie : cookies)
+ {
+ if (_cookieName.equals(cookie.getName()))
+ {
+ String key = cookie.getValue();
+ return _data.get(key);
+ }
+ }
+ return null;
+ }
+
+ public void store(T datum, HttpServletResponse response)
+ {
+ String key;
+
+ synchronized (_data)
+ {
+ // Create new ID
+ while (true)
+ {
+ key = Long.toString(Math.abs(_random.nextLong()), 30 + (int) (System.currentTimeMillis() % 7));
+ if (!_data.containsKey(key)) break;
+ }
+
+ _data.put(key, datum);
+ }
+
+ Cookie cookie = new Cookie(_cookieName, key);
+ cookie.setPath(_cookiePath);
+ response.addCookie(cookie);
+ }
+
+ public void clear(HttpServletRequest request)
+ {
+ for (Cookie cookie : request.getCookies())
+ {
+ if (_cookieName.equals(cookie.getName()))
+ {
+ String key = cookie.getValue();
+ _data.remove(key);
+ break;
+ }
+ }
+ }
+}