01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: package org.apache.cocoon.acting;
18:
19: import org.apache.avalon.framework.parameters.Parameters;
20: import org.apache.avalon.framework.thread.ThreadSafe;
21: import org.apache.cocoon.environment.ObjectModelHelper;
22: import org.apache.cocoon.environment.Redirector;
23: import org.apache.cocoon.environment.Request;
24: import org.apache.cocoon.environment.Session;
25: import org.apache.cocoon.environment.SourceResolver;
26:
27: import java.util.Map;
28:
29: /**
30: * This action just checks if a session exists and whether the current
31: * seesion is still valid.
32: *
33: * @author <a href="mailto:haul@apache.org">Christian Haul</a>
34: * @version CVS $Id: SessionIsValidAction.java 433543 2006-08-22 06:22:54Z crossley $
35: */
36: public class SessionIsValidAction extends AbstractAction implements
37: ThreadSafe {
38: /**
39: * Main invocation routine.
40: */
41: public Map act(Redirector redirector, SourceResolver resolver,
42: Map objectModel, String src, Parameters parameters)
43: throws Exception {
44: Request req = ObjectModelHelper.getRequest(objectModel);
45:
46: /* check session validity */
47: Session session = req.getSession(false);
48: if (session == null) {
49: if (this .getLogger().isDebugEnabled()) {
50: getLogger().debug("No session object");
51: }
52: return null;
53: }
54: if (!req.isRequestedSessionIdValid()) {
55: if (this .getLogger().isDebugEnabled()) {
56: getLogger().debug("Requested session id is invalid");
57: }
58: return null;
59: }
60:
61: return EMPTY_MAP;
62: }
63: }
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