com.adito.extensions.actions.GetApplicationFileAction.java Source code

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Here is the source code for com.adito.extensions.actions.GetApplicationFileAction.java

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/*
*  Adito
*
*  Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
*
*  This program is free software; you can redistribute it and/or
*  modify it under the terms of the GNU General Public License
*  as published by the Free Software Foundation; either version 2 of
*  the License, or (at your option) any later version.
*  This program is distributed in the hope that it will be useful,
*  but WITHOUT ANY WARRANTY; without even the implied warranty of
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*  GNU General Public License for more details.
*
*  You should have received a copy of the GNU General Public
*  License along with this program; if not, write to the Free Software
*  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

package com.adito.extensions.actions;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.adito.boot.ContextKey;
import com.adito.boot.KeyStoreManager;
import com.adito.boot.Util;
import com.adito.core.CoreException;
import com.adito.core.actions.XMLOutputAction;
import com.adito.core.filters.GZIPResponseWrapper;
import com.adito.extensions.ExtensionDescriptor;
import com.adito.extensions.store.ExtensionStore;
import com.adito.properties.Property;
import com.adito.security.Constants;
import com.adito.security.LogonControllerFactory;
import com.adito.security.SessionInfo;

public class GetApplicationFileAction extends XMLOutputAction {
    final static Log log = LogFactory.getLog(GetApplicationFileAction.class);

    public GetApplicationFileAction() {
    }

    public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
            HttpServletResponse response) throws Exception {
        if (response instanceof GZIPResponseWrapper) {
            ((GZIPResponseWrapper) response).setCompress(false);
        }

        request.setAttribute(Constants.REQ_ATTR_COMPRESS, Boolean.FALSE);
        String application = request.getParameter("name");
        String file = request.getParameter("file").replace('\\', '/');

        String ticket = request.getParameter("ticket");

        if (file.equalsIgnoreCase("adito.cert")) {
            processApplicationCertRequest(application, ticket, response);
        } else {
            processApplicationFileRequest(application, file, ticket, request, response);
        }
        return null;
    }

    protected void processApplicationCertRequest(String application, String ticket, HttpServletResponse response)

            throws Exception {

        byte[] cert = KeyStoreManager.getInstance(KeyStoreManager.DEFAULT_KEY_STORE)
                .getCertificate(Property.getProperty(new ContextKey("webServer.alias"))).getEncoded();

        /**
         * If the ticket is a pending VPN session ticket (Agent) then process
         */
        SessionInfo sessionInfo = LogonControllerFactory.getInstance().getAuthorizationTicket(ticket);

        if (sessionInfo == null)
            throw new CoreException(0, "");

        sendFile(new ByteArrayInputStream(cert), cert.length, response);
    }

    protected void processApplicationFileRequest(String application, String file, String ticket,
            HttpServletRequest request, HttpServletResponse response)

            throws Exception {

        /*
         * We may already have session info
         */
        SessionInfo sessionInfo = LogonControllerFactory.getInstance().getSessionInfo(request);
        if (sessionInfo == null) {
            /**
             * If the ticket is a pending VPN session ticket (Agent) then
             * process
             */
            sessionInfo = LogonControllerFactory.getInstance().getAuthorizationTicket(ticket);
        }

        if (sessionInfo == null)
            throw new CoreException(0, "");

        ExtensionDescriptor app = ExtensionStore.getInstance().getExtensionDescriptor(application);

        if (app == null)
            app = ExtensionStore.getInstance().getAgentApplication();

        if (!app.containsFile(file)) {
            log.error("Agent requested a file that does not exist (" + file + ").");
            sendError(file + " not found", response);
        } else {
            sendFile(app.getFile(file), response);
        }
    }

    private void sendFile(File file, HttpServletResponse response) throws IOException {

        sendFile(new FileInputStream(file), file.length(), response);

    }

    private void sendFile(InputStream in, long length, HttpServletResponse response) throws IOException {
        Util.noCache(response);

        response.setHeader("Content-type", "application/octet-stream");
        response.setContentLength((int) length);
        try {

            Util.copy(in, response.getOutputStream());

        } catch (IOException ex) {
        } finally {
            Util.closeStream(in);
            Util.closeStream(response.getOutputStream());
        }

    }

}