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 java.io.BufferedInputStream;
22 import java.io.FileInputStream;
23 import java.io.IOException;
24 import java.io.InputStream;
25
26 import javax.servlet.ServletException;
27 import javax.servlet.ServletOutputStream;
28 import javax.servlet.http.HttpServlet;
29 import javax.servlet.http.HttpServletRequest;
30 import javax.servlet.http.HttpServletResponse;
31
32 public class SourceCodeServlet extends HttpServlet
33 {
34 public void doGet(HttpServletRequest req, HttpServletResponse res)
35 throws IOException, ServletException
36 {
37 String webPage = req.getServletPath();
38
39 // remove the '*.source' suffix that maps to this servlet
40 int chopPoint = webPage.indexOf(".source");
41
42 webPage = webPage.substring(0, chopPoint - 1);
43 webPage += "p"; // replace jsf with jsp
44
45 // get the actual file location of the requested resource
46 String realPath = getServletConfig().getServletContext().getRealPath(webPage);
47
48 // output an HTML page
49 res.setContentType("text/plain");
50
51 // print some html
52 ServletOutputStream out = res.getOutputStream();
53
54 // print the file
55 InputStream in = null;
56 try
57 {
58 in = new BufferedInputStream(new FileInputStream(realPath));
59 int ch;
60 while ((ch = in.read()) !=-1)
61 {
62 out.print((char)ch);
63 }
64 }
65 finally
66 {
67 if (in != null)
68 {
69 in.close(); // very important
70 }
71 }
72 }
73 }