[JAVA] Using Proxies

Originally written by Deque of EZ.

_____________________________________

These snippets show how to use proxies in Java.

ProxyHelper loads a proxylist of the format address:port:type (one proxy per line) and returns a proxy, if requested.

import java.io.BufferedReader;

import java.io.FileReader;

import java.io.IOException;

import java.net.InetSocketAddress;

import java.net.Proxy;

import java.net.SocketAddress;

import java.util.LinkedList;

import java.util.Random;

 

public class ProxyHelper {

 

    private final Random rand;

    private final LinkedList<Proxy> proxies = new LinkedList<Proxy>();

 

    public ProxyHelper(String filename) {

        rand = new Random();

        loadProxies(filename);

    }

 

    public Proxy getAndRemoveRandomProxy() {

        int num = rand.nextInt(proxies.size());

        System.out.println(proxies.size());

        Proxy proxy = proxies.remove(num);

        System.out.println(proxy.address());

        return proxy;

    }

 

    // file format: "address:port:type"

    private void loadProxies(String filename) {

        try (BufferedReader br = new BufferedReader(new FileReader(filename))) {

            String line;

            while ((line = br.readLine()) != null) {

                String[] data = line.split(":");

                SocketAddress address = new InetSocketAddress(data[0],

                        Integer.parseInt(data[1]));

                Proxy.Type type = Proxy.Type.valueOf(data[2]);

                proxies.add(new Proxy(type, address));

            }

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}

This is how you actually use the proxy:

Proxy proxy = proxyHelper.getAndRemoveRandomProxy();

URL url = new URL("http://evilzone.org");

URLConnection urlc = url.openConnection(proxy);

BufferedReader reader = new BufferedReader(new 

                        InputStreamReader(urlc.getInputStream()));