1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.shared.util.servlet;
20
21 import javax.servlet.*;
22 import javax.servlet.http.*;
23 import java.io.*;
24
25 public class SourceCodeServlet extends HttpServlet
26 {
27 public void doGet(HttpServletRequest req, HttpServletResponse res)
28 throws IOException, ServletException
29 {
30 String webPage = req.getServletPath();
31
32 // remove the '*.source' suffix that maps to this servlet
33 int chopPoint = webPage.indexOf(".source");
34
35 webPage = webPage.substring(0, chopPoint - 1);
36 webPage += "p"; // replace jsf with jsp
37
38 // get the actual file location of the requested resource
39 String realPath = getServletConfig().getServletContext().getRealPath(webPage);
40
41 // output an HTML page
42 res.setContentType("text/plain");
43
44 // print some html
45 ServletOutputStream out = res.getOutputStream();
46
47 // print the file
48 InputStream in = null;
49 try
50 {
51 in = new BufferedInputStream(new FileInputStream(realPath));
52 int ch;
53 while ((ch = in.read()) !=-1)
54 {
55 out.print((char)ch);
56 }
57 }
58 finally {
59 if (in != null) in.close(); // very important
60 }
61 }
62 }