ProxyUtils.java

package me.play.util;
 
import static java.lang.System.getProperty;
import static java.lang.System.setProperty;
import static java.util.logging.Level.SEVERE;
import static java.util.logging.Logger.getLogger;
 
import java.net.Authenticator;
import java.net.InetAddress;
import java.net.PasswordAuthentication;
import java.net.UnknownHostException;
 
/**
* Call <code>#authenticate()</code>once per app life cycle…
* 
* @author Octavian Theodor NITA (mnothro@yahoo.com)
* @version 1.0, Sep 12, 2013
*/
public class ProxyUtils {
 
    public static void authenticate() {
      
        // A sort of whitelist
        try {
            if (!InetAddress.getLocalHost().toString().toLowerCase().contains("whitelisted")) {
                return;
            }
        } catch (UnknownHostException e) {
            getLogger(ProxyUtils.class.getName()).log(SEVERE, null, e);
            return;
        }
 
        // Set system properties
        setProperty("http.proxyHost", "192.168.0.110");
        setProperty("http.proxyPort", "88");
        setProperty("http.proxyUser", "user");
        setProperty("http.proxyPassword", "pass");
        setProperty("https.proxyHost", getProperty("http.proxyHost"));
        setProperty("https.proxyPort", getProperty("http.proxyPort"));
        setProperty("https.proxyUser", getProperty("http.proxyUser"));
        setProperty("https.proxyPassword", getProperty("http.proxyPassword"));
      
        // Set the authenticator
        Authenticator.setDefault(new Authenticator() {
 
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication("user", "pass".toCharArray());
            }
        });
    }
}