| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 1 | /*
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more
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| 3 | * contributor license agreements. See the NOTICE file distributed with
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| 4 | * this work for additional information regarding copyright ownership.
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| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0
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| 6 | * (the "License"); you may not use this file except in compliance with
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| 7 | * the License. You may obtain a copy of the License at
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| 8 | *
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| 9 | * http://www.apache.org/licenses/LICENSE-2.0
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| 10 | *
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| 11 | * Unless required by applicable law or agreed to in writing, software
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| 12 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 14 | * See the License for the specific language governing permissions and
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| 15 | * limitations under the License.
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| 16 | */
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| 17 |
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| 刘洪青 | 6266f99 | 2017-05-15 21:21:03 +0800 | [diff] [blame^] | 18 | import java.io.IOException;
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| 19 | import java.io.PrintWriter;
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| 20 | import java.util.Enumeration;
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| 21 | import java.util.Locale;
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| 22 | import java.util.ResourceBundle;
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 23 |
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| 刘洪青 | 6266f99 | 2017-05-15 21:21:03 +0800 | [diff] [blame^] | 24 | import javax.servlet.ServletException;
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| 25 | import javax.servlet.http.HttpServlet;
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| 26 | import javax.servlet.http.HttpServletRequest;
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| 27 | import javax.servlet.http.HttpServletResponse;
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| 28 | import javax.servlet.http.HttpSession;
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| 29 |
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| 30 | import util.CookieFilter;
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 31 | import util.HTMLFilter;
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| 32 |
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| 33 | /**
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| 34 | * Example servlet showing request headers
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| 35 | *
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| 36 | * @author James Duncan Davidson <duncan@eng.sun.com>
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| 37 | */
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| 38 |
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| 39 | public class RequestHeaderExample extends HttpServlet {
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| 40 |
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| 刘洪青 | 6266f99 | 2017-05-15 21:21:03 +0800 | [diff] [blame^] | 41 | private static final long serialVersionUID = 1L;
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| 42 |
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| 43 | private static final ResourceBundle RB = ResourceBundle.getBundle("LocalStrings");
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| 44 |
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| 45 | @Override
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 46 | public void doGet(HttpServletRequest request,
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| 47 | HttpServletResponse response)
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| 48 | throws IOException, ServletException
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| 49 | {
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| 50 | response.setContentType("text/html");
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| 51 |
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| 52 | PrintWriter out = response.getWriter();
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| 53 | out.println("<html>");
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| 54 | out.println("<head>");
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| 55 |
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| 刘洪青 | 6266f99 | 2017-05-15 21:21:03 +0800 | [diff] [blame^] | 56 | String title = RB.getString("requestheader.title");
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 57 | out.println("<title>" + title + "</title>");
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| 58 | out.println("</head>");
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| 59 | out.println("<body bgcolor=\"white\">");
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| 60 |
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| 刘洪青 | 6266f99 | 2017-05-15 21:21:03 +0800 | [diff] [blame^] | 61 | // all links relative
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 62 |
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| 63 | // XXX
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| 64 | // making these absolute till we work out the
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| 刘洪青 | 6266f99 | 2017-05-15 21:21:03 +0800 | [diff] [blame^] | 65 | // addition of a PathInfo issue
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| 66 |
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 67 | out.println("<a href=\"../reqheaders.html\">");
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| 68 | out.println("<img src=\"../images/code.gif\" height=24 " +
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| 69 | "width=24 align=right border=0 alt=\"view code\"></a>");
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| 70 | out.println("<a href=\"../index.html\">");
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| 71 | out.println("<img src=\"../images/return.gif\" height=24 " +
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| 72 | "width=24 align=right border=0 alt=\"return\"></a>");
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| 73 |
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| 74 | out.println("<h3>" + title + "</h3>");
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| 75 | out.println("<table border=0>");
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| 刘洪青 | 6266f99 | 2017-05-15 21:21:03 +0800 | [diff] [blame^] | 76 | Enumeration<String> e = request.getHeaderNames();
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 77 | while (e.hasMoreElements()) {
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| 刘洪青 | 6266f99 | 2017-05-15 21:21:03 +0800 | [diff] [blame^] | 78 | String headerName = e.nextElement();
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 79 | String headerValue = request.getHeader(headerName);
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| 80 | out.println("<tr><td bgcolor=\"#CCCCCC\">");
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| 81 | out.println(HTMLFilter.filter(headerName));
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| 82 | out.println("</td><td>");
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| 刘洪青 | 6266f99 | 2017-05-15 21:21:03 +0800 | [diff] [blame^] | 83 | if (headerName.toLowerCase(Locale.ENGLISH).contains("cookie")) {
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| 84 | HttpSession session = request.getSession(false);
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| 85 | String sessionId = null;
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| 86 | if (session != null) {
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| 87 | sessionId = session.getId();
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| 88 | }
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| 89 | out.println(HTMLFilter.filter(CookieFilter.filter(headerValue, sessionId)));
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| 90 | } else {
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| 91 | out.println(HTMLFilter.filter(headerValue));
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| 92 | }
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 93 | out.println("</td></tr>");
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| 94 | }
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| 95 | out.println("</table>");
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| 96 | }
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| 97 |
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| 刘洪青 | 6266f99 | 2017-05-15 21:21:03 +0800 | [diff] [blame^] | 98 | @Override
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| Hongqing Liu | fd5ee81 | 2014-05-10 16:32:51 +0800 | [diff] [blame] | 99 | public void doPost(HttpServletRequest request,
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| 100 | HttpServletResponse response)
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| 101 | throws IOException, ServletException
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| 102 | {
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| 103 | doGet(request, response);
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| 104 | }
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| 105 |
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| 106 | }
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| 107 |
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