/*

  *  Copyright 2007 rafale.

  *

  *  Licensed under the Apache License, Version 2.0 (the "License");

  *  you may not use this file except in compliance with the License.

  *  You may obtain a copy of the License at

  *

  *       http://www.apache.org/licenses/LICENSE-2.0

  *

  *  Unless required by applicable law or agreed to in writing, software

  *  distributed under the License is distributed on an "AS IS" BASIS,

  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  *  See the License for the specific language governing permissions and

  *  limitations under the License.

  *  under the License.

  */

 package org.apache.maven.archetype.repository;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.FileNotFoundException;

 import java.io.IOException;

 import java.io.InputStream;

 import javax.servlet.ServletException;

 import javax.servlet.http.HttpServlet;

 import javax.servlet.http.HttpServletRequest;

 import javax.servlet.http.HttpServletResponse;

 import org.mortbay.util.IO;

 import org.mortbay.util.StringUtil;

 /**

  *

  * @author rafale

  */

 public class RepositoryServlet

     extends HttpServlet

 {

     private File getFile( HttpServletRequest request )

     {

         log( "Requested file = " + request.getRequestURI() );

         String filePath =

             System.getProperty( "org.apache.maven.archetype.repository.directory" ).trim() + "/"

                 + request.getRequestURI();

         filePath = StringUtil.replace( filePath, "\\", File.separator );

         filePath = StringUtil.replace( filePath, File.separator, "/" );

         filePath = filePath.replaceAll( "/repo/", "/" );

         filePath = filePath.replaceAll( "//", "/" );

         filePath = filePath.replaceAll( "//", "/" );

         filePath = filePath.replaceAll( "//", "/" );

         filePath = StringUtil.replace( filePath, "/", File.separator );

         log( "Complete file path = " + filePath );

         return new File( filePath );

     }

     public void doGet( HttpServletRequest request, HttpServletResponse response )

         throws ServletException

     {

         log( "Getting file" );

         InputStream is = null;

         try

         {

             is = new FileInputStream( getFile( request ) );

             IO.copy( is, response.getOutputStream() );

             response.setStatus( HttpServletResponse.SC_OK );

             log( "File sent" );

         }

         catch ( FileNotFoundException fileNotFoundException )

         {

             response.setStatus( HttpServletResponse.SC_NOT_FOUND );

             log( "Requested file not found " );

         }

         catch ( IOException iOException )

         {

             response.setStatus( HttpServletResponse.SC_INTERNAL_SERVER_ERROR );

             log( "Cannot send file", iOException );

         }

         finally

         {

             IO.close( is );

         }

     }

 }