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Java > Open Source Codes > com > sslexplorer > navigation > actions > ShowFileDownloadAction


1 /*
2  * SSL-Explorer
3  *
4  * Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2 of
9  * the License, or (at your option) any later version.
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public
16  * License along with this program; if not, write to the Free Software
17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18  */
19             
20 package com.sslexplorer.navigation.actions;
21
22 import javax.servlet.http.HttpServletRequest JavaDoc;
23 import javax.servlet.http.HttpServletResponse JavaDoc;
24
25 import org.apache.struts.action.ActionForm;
26 import org.apache.struts.action.ActionForward;
27 import org.apache.struts.action.ActionMapping;
28
29 import com.sslexplorer.core.CoreUtil;
30 import com.sslexplorer.core.FileDownloadPageInterceptListener;
31 import com.sslexplorer.core.actions.DefaultAction;
32 import com.sslexplorer.navigation.forms.FileDownloadForm;
33 import com.sslexplorer.security.SessionInfo;
34
35 /**
36  * Action to show the file download screen.
37  *
38  * @author James D Robinson <a HREF="mailto:james@3sp.com">&lt;james@3sp.com&gt;</a>
39  *
40  */
41 public class ShowFileDownloadAction extends DefaultAction {
42
43     /* (non-Javadoc)
44      * @see com.sslexplorer.core.actions.DefaultAction#execute(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
45      */
46     public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest JavaDoc request, HttpServletResponse JavaDoc response)
47                     throws Exception JavaDoc {
48         String JavaDoc id = request.getParameter("id");
49         if(id == null) {
50             throw new Exception JavaDoc("No download Id provided.");
51         }
52         FileDownloadPageInterceptListener l = (FileDownloadPageInterceptListener)
53             CoreUtil.getPageInterceptListenerById(request.getSession(), FileDownloadPageInterceptListener.INTERCEPT_ID);
54         if(l == null) {
55             throw new Exception JavaDoc(
56                 "The requested download is no longer available. Some types of " +
57                 "content may only be downloaded once.");
58         }
59         ((FileDownloadForm)form).init(l.getDownload(Integer.parseInt(id)));
60         return mapping.findForward("success");
61     }
62
63     /* (non-Javadoc)
64      * @see com.sslexplorer.core.actions.CoreAction#getNavigationContext(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
65      */
66     public int getNavigationContext(ActionMapping mapping, ActionForm form, HttpServletRequest JavaDoc request, HttpServletResponse JavaDoc response) {
67         return SessionInfo.ALL_CONTEXTS;
68     }
69
70 }
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