    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/enterprise/servlet/DirectoryAccessServlet.java $
    002    /*----------------------------------------------------------------------------
    003     This file is part of deegree, http://deegree.org/
    004     Copyright (C) 2001-2009 by:
    005       Department of Geography, University of Bonn
    006     and
    007       lat/lon GmbH
    008
    009     This library is free software; you can redistribute it and/or modify it under
    010     the terms of the GNU Lesser General Public License as published by the Free
    011     Software Foundation; either version 2.1 of the License, or (at your option)
    012     any later version.
    013     This library is distributed in the hope that it will be useful, but WITHOUT
    014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
    016     details.
    017     You should have received a copy of the GNU Lesser General Public License
    018     along with this library; if not, write to the Free Software Foundation, Inc.,
    019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    020
    021     Contact information:
    022
    023     lat/lon GmbH
    024     Aennchenstr. 19, 53177 Bonn
    025     Germany
    026     http://lat-lon.de/
    027
    028     Department of Geography, University of Bonn
    029     Prof. Dr. Klaus Greve
    030     Postfach 1147, 53001 Bonn
    031     Germany
    032     http://www.geographie.uni-bonn.de/deegree/
    033
    034     e-mail: info@deegree.org
    035    ----------------------------------------------------------------------------*/
    036
    037    package org.deegree.enterprise.servlet;
    038
    039    import java.io.File;
    040    import java.io.IOException;
    041    import java.io.OutputStream;
    042    import java.io.RandomAccessFile;
    043    import java.util.Map;
    044
    045    import javax.servlet.ServletException;
    046    import javax.servlet.http.HttpServlet;
    047    import javax.servlet.http.HttpServletRequest;
    048    import javax.servlet.http.HttpServletResponse;
    049
    050    import org.deegree.framework.util.KVP2Map;
    051
    052    /**
    053     * This is one possible web application to be used for the printing functionality in iGeoPortal Std.
    054     *
    055     * @author <a href="mailto:mays@lat-lon.de">Judit Mays</a>
    056     * @author last edited by: $Author: mschneider $
    057     *
    058     * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
    059     */
    060    public class DirectoryAccessServlet extends HttpServlet {
    061
    062        /**
    063         *
    064         */
    065        private static final long serialVersionUID = 2816833149662971995L;
    066
    067        private String rootDir;
    068
    069        /*
    070         * (non-Javadoc)
    071         *
    072         * @see javax.servlet.GenericServlet#init()
    073         */
    074        @Override
    075        public void init()
    076                                throws ServletException {
    077            super.init();
    078            rootDir = getInitParameter( "ROOTDIR" );
    079            if ( rootDir == null ) {
    080                rootDir = getServletContext().getRealPath( "." );
    081            } else {
    082                File file = new File( rootDir );
    083                if ( !file.isAbsolute() ) {
    084                    rootDir = getServletContext().getRealPath( rootDir );
    085                }
    086            }
    087            if ( !rootDir.endsWith( "/" ) ) {
    088                rootDir += '/';
    089            }
    090        }
    091
    092        /*
    093         * (non-Javadoc)
    094         *
    095         * @see javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest,
    096         *      javax.servlet.http.HttpServletResponse)
    097         */
    098        @Override
    099        protected void doGet( HttpServletRequest request, HttpServletResponse response )
    100                                throws ServletException, IOException {
    101            doPost( request, response );
    102        }
    103
    104        /*
    105         * (non-Javadoc)
    106         *
    107         * @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest,
    108         *      javax.servlet.http.HttpServletResponse)
    109         */
    110        @Override
    111        protected void doPost( HttpServletRequest request, HttpServletResponse response )
    112                                throws ServletException, IOException {
    113            Map<String, String> reqParams = KVP2Map.toMap( request );
    114            String req = reqParams.get( "REQUEST" );
    115            if ( "download".equals( req ) ) {
    116                download( reqParams, response );
    117            } else {
    118                throw new ServletException( "Unknown operation: " + req );
    119            }
    120        }
    121
    122        /**
    123         * @param reqParams
    124         * @param response
    125         * @throws IOException
    126         */
    127        private void download( Map<String, String> reqParams, HttpServletResponse response )
    128                                throws IOException {
    129
    130            String file = reqParams.get( "FILENAME" );
    131            String path = rootDir + file;
    132            RandomAccessFile raf = new RandomAccessFile( path, "r" );
    133            long l = raf.length();
    134            byte[] b = new byte[(int) l];
    135            raf.read( b );
    136            raf.close();
    137
    138            OutputStream os = response.getOutputStream();
    139            os.write( b );
    140            os.close();
    141        }
    142
    143    }