X509Snoop.java Source code

Introduction

Here is the source code for X509Snoop.java

Source

import java.io.IOException;
import java.io.PrintWriter;
import java.security.cert.X509Certificate;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class X509Snoop extends HttpServlet {

    public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
        res.setContentType("text/plain");
        PrintWriter out = res.getWriter();

        X509Certificate[] certs = (X509Certificate[]) req.getAttribute("javax.servlet.request.X509Certificate");
        if (certs != null) {
            for (int i = 0; i < certs.length; i++) {
                out.println("Client Certificate [" + i + "] = " + certs[i].toString());
            }
        } else {
            if ("https".equals(req.getScheme())) {
                out.println("This was an HTTPS request, " + "but no client certificate is available");
            } else {
                out.println("This was not an HTTPS request, " + "so no client certificate is available");
            }
        }
    }
}