1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 package com.acme;
20
21 import java.io.IOException;
22 import java.io.PrintWriter;
23 import java.util.concurrent.TimeUnit;
24
25 import javax.servlet.RequestDispatcher;
26 import javax.servlet.ServletException;
27 import javax.servlet.http.Cookie;
28 import javax.servlet.http.HttpServlet;
29 import javax.servlet.http.HttpServletRequest;
30 import javax.servlet.http.HttpServletResponse;
31
32
33
34
35
36 @SuppressWarnings("serial")
37 public class CookieDump extends HttpServlet
38 {
39 int redirectCount=0;
40
41
42 protected void handleForm(HttpServletRequest request,
43 HttpServletResponse response)
44 {
45 String name = request.getParameter("Name");
46 String value = request.getParameter("Value");
47 String age = request.getParameter("Age");
48
49 if (name!=null && name.length()>0)
50 {
51 Cookie cookie = new Cookie(name,value);
52 if (age!=null && age.length()>0)
53 cookie.setMaxAge(Integer.parseInt(age));
54 response.addCookie(cookie);
55 }
56 }
57
58
59 @Override
60 public void doPost(HttpServletRequest request,
61 HttpServletResponse response)
62 throws ServletException, IOException
63 {
64 handleForm(request,response);
65 String nextUrl = getURI(request)+"?R="+redirectCount++;
66 String encodedUrl=response.encodeRedirectURL(nextUrl);
67 response.sendRedirect(encodedUrl);
68 }
69
70
71 @Override
72 public void doGet(HttpServletRequest request,
73 HttpServletResponse response)
74 throws ServletException, IOException
75 {
76 handleForm(request,response);
77
78 response.setContentType("text/html");
79
80
81 PrintWriter out = response.getWriter();
82 out.println("<h1>Cookie Dump Servlet:</h1>");
83
84 Cookie[] cookies = request.getCookies();
85
86 for (int i=0;cookies!=null && i<cookies.length;i++)
87 {
88 out.println("<b>"+deScript(cookies[i].getName())+"</b>="+deScript(cookies[i].getValue())+"<br/>");
89 }
90
91 out.println("<form action=\""+response.encodeURL(getURI(request))+"\" method=\"post\">");
92
93 out.println("<b>Name:</b><input type=\"text\" name=\"Name\" value=\"name\"/><br/>");
94 out.println("<b>Value:</b><input type=\"text\" name=\"Value\" value=\"value\"/><br/>");
95 out.println("<b>Max-Age:</b><input type=\"text\" name=\"Age\" value=\"60\"/><br/>");
96 out.println("<input type=\"submit\" name=\"Action\" value=\"Set\"/>");
97
98 }
99
100
101 @Override
102 public String getServletInfo() {
103 return "Session Dump Servlet";
104 }
105
106
107 private String getURI(HttpServletRequest request)
108 {
109 String uri=(String)request.getAttribute(RequestDispatcher.FORWARD_REQUEST_URI);
110 if (uri==null)
111 uri=request.getRequestURI();
112 return uri;
113 }
114
115
116 protected String deScript(String string)
117 {
118 if (string==null)
119 return null;
120 string=string.replace("&", "&");
121 string=string.replace( "<", "<");
122 string=string.replace( ">", ">");
123 return string;
124 }
125
126 @Override
127 public void destroy()
128 {
129
130 if (Boolean.getBoolean("test.slow.destroy"))
131 {
132 try
133 {
134 TimeUnit.SECONDS.sleep(10);
135 }
136 catch (InterruptedException e)
137 {
138
139 }
140 }
141 super.destroy();
142 }
143 }