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1   /*
2    * Copyright (c) 2002-2022, City of Paris
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions
7    * are met:
8    *
9    *  1. Redistributions of source code must retain the above copyright notice
10   *     and the following disclaimer.
11   *
12   *  2. Redistributions in binary form must reproduce the above copyright notice
13   *     and the following disclaimer in the documentation and/or other materials
14   *     provided with the distribution.
15   *
16   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17   *     contributors may be used to endorse or promote products derived from
18   *     this software without specific prior written permission.
19   *
20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30   * POSSIBILITY OF SUCH DAMAGE.
31   *
32   * License 1.0
33   */
34  package fr.paris.lutece.portal.web.stylesheet;
35  
36  import java.io.IOException;
37  import java.io.OutputStream;
38  
39  import javax.servlet.ServletContext;
40  import javax.servlet.http.HttpServlet;
41  import javax.servlet.http.HttpServletRequest;
42  import javax.servlet.http.HttpServletResponse;
43  
44  import fr.paris.lutece.portal.business.stylesheet.StyleSheet;
45  import fr.paris.lutece.portal.business.stylesheet.StyleSheetHome;
46  import fr.paris.lutece.portal.business.user.AdminUser;
47  import fr.paris.lutece.portal.service.admin.AdminUserService;
48  import fr.paris.lutece.portal.web.constants.Parameters;
49  
50  /**
51   * StyleSheetFile Servlet
52   */
53  public class StyleSheetFileServlet extends HttpServlet
54  {
55      /**
56       *
57       */
58      private static final long serialVersionUID = 9154028959985088272L;
59  
60      /**
61       * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
62       * 
63       * @param request
64       *            servlet request
65       * @param response
66       *            servlet response
67       * @throws IOException
68       */
69      protected void processRequest( HttpServletRequest request, HttpServletResponse response ) throws IOException
70      {
71          AdminUser user = AdminUserService.getAdminUser( request );
72  
73          // FIXME : use a jsp instead of a servlet to control the right in a standard way
74          if ( ( user != null ) && ( user.checkRight( StyleSheetJspBean.RIGHT_MANAGE_STYLESHEET ) ) )
75          {
76              String strStyleSheetId = request.getParameter( Parameters.STYLESHEET_ID );
77  
78              if ( strStyleSheetId != null )
79              {
80                  int nStyleSheetId = Integer.parseInt( strStyleSheetId );
81  
82                  StyleSheet stylesheet = StyleSheetHome.findByPrimaryKey( nStyleSheetId );
83  
84                  ServletContext context = getServletConfig( ).getServletContext( );
85                  String strMimetype = context.getMimeType( stylesheet.getFile( ) );
86                  response.setContentType( ( strMimetype != null ) ? strMimetype : "application/octet-stream" );
87                  response.setHeader( "Content-Disposition", "attachement; filename=\"" + stylesheet.getFile( ) + "\"" );
88  
89                  OutputStream out = response.getOutputStream( );
90                  out.write( stylesheet.getSource( ) );
91                  out.flush( );
92                  out.close( );
93              }
94          }
95      }
96  
97      /**
98       * {@inheritDoc}
99       * 
100      * @throws IOException
101      */
102     @Override
103     protected void doGet( HttpServletRequest request, HttpServletResponse response ) throws IOException
104     {
105         processRequest( request, response );
106     }
107 
108     /**
109      * {@inheritDoc}
110      * 
111      * @throws IOException
112      */
113     @Override
114     protected void doPost( HttpServletRequest request, HttpServletResponse response ) throws IOException
115     {
116         processRequest( request, response );
117     }
118 
119     /**
120      * {@inheritDoc}
121      */
122     @Override
123     public String getServletInfo( )
124     {
125         return "Servlet serving stylesheets";
126     }
127 }