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/Users/lyon/j4p/src/net/server/servlets/ProxyServlet.java
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1 package net.server.servlets;
2
3 import javax.servlet.ServletException;
4 import javax.servlet.http.HttpServlet;
5 import javax.servlet.http.HttpServletRequest;
6 import javax.servlet.http.HttpServletResponse;
7 import java.io.IOException;
8 import java.io.PrintWriter;
9
10 public class ProxyServlet extends HttpServlet {
11
12 public void doGet(HttpServletRequest request,
13 HttpServletResponse response)
14 throws IOException, ServletException {
15 response.setContentType("text/html");
16 PrintWriter out = response.getWriter();
17 String url = request.getParameter("url");
18 if (url == null) {
19 out.println(getForm());
20 return;
21 }
22 Proxy.print(Proxy.getUrl(url), out);
23 }
24
25 public static String getForm() {
26 return
27 "<HTML>"
28 + "<HEAD>"
29 + " <TITLE>DocJavaProxy Server</TITLE>"
30 + "</HEAD>"
31 + "<BODY BGCOLOR=#FFFFFF>"
32 + "<FORM action=http://www.docjava.com:8080/examples/servlet/ProxyServlet "
33 + "method=GET>"
34 + "<P><B>Welcome to the DocJava Proxy Server</B></P>"
35 + "<P><B>This server is used for sites that require authentication to"
36 + " get out on</B></P>"
37 + "<P><B>port 80. </B></P>"
38 + "<P><B>enter a url:<INPUT TYPE="
39 + "text NAME=url VALUE=http://www.docjava.com SIZE=90></B>"
40 + "</P>"
41 + ""
42 + "<P><B>CopyLeft 2001, DocJava, Inc.</B></P>"
43 + "</FORM>"
44 + "</BODY>"
45 + "</HTML>";
46 }
47 }
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