package com.oreilly.jent.servlets;
/**
* In general, you may use the code in this book in your programs and
* documentation. You do not need to contact us for permission unless
* you're reproducing a significant portion of the code. For example,
* writing a program that uses several chunks of code from this book does
* not require permission. Selling or distributing a CD-ROM of examples
* from O'Reilly books does require permission. Answering a question by
* citing this book and quoting example code does not require permission.
* Incorporating a significant amount of example code from this book into
* your product's documentation does require permission.
*
* We appreciate, but do not require, attribution. An attribution usually
* includes the title, author, publisher, and ISBN. For example:
*
* "Java Enterprise in a Nutshell, Third Edition,
* by Jim Farley and William Crawford
* with Prakash Malani, John G. Norman, and Justin Gehtland.
* Copyright 2006 O'Reilly Media, Inc., 0-596-10142-2."
*
* If you feel your use of code examples falls outside fair use or the
* permission given above, feel free to contact us at
* permissions@oreilly.com.
*/
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class SecureRequestServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
resp.setContentType("text/html");
PrintWriter out = resp.getWriter( );
out.println("<html>");
out.println("<head><title>Semi-Secure Request</title></head>");
out.println("<body>");
String remoteHost = req.getRemoteHost( );
String scheme = req.getScheme( );
String authType = req.getAuthType( );
if((remoteHost == null) || (scheme == null) || (authType == null)) {
out.println("Request Information Was Not Available.");
return;
}
if(scheme.equalsIgnoreCase("https") && remoteHost.endsWith(".gov")
&& authType.equals("Digest")) {
out.println("Special, secret information.");
}
else {
out.println("You are not authorized to view this data.");
}
out.println("</body></html>");
}
}
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