StyleSheetFileServlet.java

  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. import java.io.IOException;
  36. import java.io.OutputStream;

  37. import javax.servlet.ServletContext;
  38. import javax.servlet.http.HttpServlet;
  39. import javax.servlet.http.HttpServletRequest;
  40. import javax.servlet.http.HttpServletResponse;

  41. import fr.paris.lutece.portal.business.stylesheet.StyleSheet;
  42. import fr.paris.lutece.portal.business.stylesheet.StyleSheetHome;
  43. import fr.paris.lutece.portal.business.user.AdminUser;
  44. import fr.paris.lutece.portal.service.admin.AdminUserService;
  45. import fr.paris.lutece.portal.web.constants.Parameters;

  46. /**
  47.  * StyleSheetFile Servlet
  48.  */
  49. public class StyleSheetFileServlet extends HttpServlet
  50. {
  51.     /**
  52.      *
  53.      */
  54.     private static final long serialVersionUID = 9154028959985088272L;

  55.     /**
  56.      * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
  57.      *
  58.      * @param request
  59.      *            servlet request
  60.      * @param response
  61.      *            servlet response
  62.      * @throws IOException
  63.      */
  64.     protected void processRequest( HttpServletRequest request, HttpServletResponse response ) throws IOException
  65.     {
  66.         AdminUser user = AdminUserService.getAdminUser( request );

  67.         // FIXME : use a jsp instead of a servlet to control the right in a standard way
  68.         if ( ( user != null ) && ( user.checkRight( StyleSheetJspBean.RIGHT_MANAGE_STYLESHEET ) ) )
  69.         {
  70.             String strStyleSheetId = request.getParameter( Parameters.STYLESHEET_ID );

  71.             if ( strStyleSheetId != null )
  72.             {
  73.                 int nStyleSheetId = Integer.parseInt( strStyleSheetId );

  74.                 StyleSheet stylesheet = StyleSheetHome.findByPrimaryKey( nStyleSheetId );

  75.                 ServletContext context = getServletConfig( ).getServletContext( );
  76.                 String strMimetype = context.getMimeType( stylesheet.getFile( ) );
  77.                 response.setContentType( ( strMimetype != null ) ? strMimetype : "application/octet-stream" );
  78.                 response.setHeader( "Content-Disposition", "attachement; filename=\"" + stylesheet.getFile( ) + "\"" );

  79.                 OutputStream out = response.getOutputStream( );
  80.                 out.write( stylesheet.getSource( ) );
  81.                 out.flush( );
  82.                 out.close( );
  83.             }
  84.         }
  85.     }

  86.     /**
  87.      * {@inheritDoc}
  88.      *
  89.      * @throws IOException
  90.      */
  91.     @Override
  92.     protected void doGet( HttpServletRequest request, HttpServletResponse response ) throws IOException
  93.     {
  94.         processRequest( request, response );
  95.     }

  96.     /**
  97.      * {@inheritDoc}
  98.      *
  99.      * @throws IOException
  100.      */
  101.     @Override
  102.     protected void doPost( HttpServletRequest request, HttpServletResponse response ) throws IOException
  103.     {
  104.         processRequest( request, response );
  105.     }

  106.     /**
  107.      * {@inheritDoc}
  108.      */
  109.     @Override
  110.     public String getServletInfo( )
  111.     {
  112.         return "Servlet serving stylesheets";
  113.     }
  114. }