httpsclient.java

wendang for java. 124342423 432

package javasec.samples.ch14;

import java.io.*;
import java.net.*;

import com.sun.net.ssl.*;

public class HttpsClient {

    static class HttpClientVerifier implements HostnameVerifier {
        public boolean verify(String url, String cert) {
            try {
                // We know the strings don抰 match, but it抯
                // conceivable that their IP addresses do.  We
                // could also ask the user here.
                InetAddress iaU = InetAddress.getByName(url);
                InetAddress iaC = InetAddress.getByName(cert);
                return iaU.equals(iaC);
            } catch (Exception e) {
                return false;
            }
        }
    }

    public static void main(String[] args) throws Exception {
        URL u = new URL(args[0]);
        // Alternately, we could set a global verifier like this
        // HttpsURLConnection.setDefaultHostnameVerifier(
        //                  new HttpClientVerifier());

        HttpsURLConnection huc =
                  (HttpsURLConnection) u.openConnection();
        // Instead, we set the verifier only for this instance
        huc.setHostnameVerifier(new HttpClientVerifier());

        BufferedReader br = new BufferedReader(
                        new InputStreamReader(huc.getInputStream()));
        String s = br.readLine();
        while (s != null) {
            System.out.println(s);
            s = br.readLine();
        }
    }
}