facebooknetwork.java

package FacebookGraph;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.Properties;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.X509TrustManager;

import com.restfb.Connection;
import com.restfb.DefaultFacebookClient;
import com.restfb.FacebookClient;
import com.restfb.types.User;

public class FacebookNetwork {

	public Properties properties = new Properties();
	public FacebookClient fbClient = null;
	public String accessToken = null;
	
	public FacebookNetwork()
	{
		try {
			properties.load(new FileInputStream("fb.properties"));
			this.accessToken = properties.getProperty("access_token");
			this.fbClient = new DefaultFacebookClient(this.accessToken);			
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	/*
	 * Get a list of your facebook friends and related details
	 */
	public void GetFriends()
	{
		//this is a bad hack to get the https to work. not recommended
		javax.net.ssl.TrustManager[] trustAllCerts = new javax.net.ssl.TrustManager[]{
			    new X509TrustManager() {
			        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
			            return null;
			        }
			        public void checkClientTrusted(
			            java.security.cert.X509Certificate[] certs, String authType) {
			        }
			        public void checkServerTrusted(
			            java.security.cert.X509Certificate[] certs, String authType) {
			        }
			    }
			};
		
		// Install the all-trusting trust manager
		try {
		    SSLContext sc = SSLContext.getInstance("SSL");
		    sc.init(null, trustAllCerts, new java.security.SecureRandom());
		    HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
		} catch (Exception e) {
			System.out.println(e.getMessage());
		}
		
		Connection<User> myFriends = this.fbClient.fetchConnection("me/friends", User.class);
		
		for (User friend: myFriends.getData())
		{
			String id = friend.getId();
			String nodeUrl = "https://graph.facebook.com/" + id + "?access_token=" + properties.getProperty("access_token");
			try {
				URL graphNode = new URL(nodeUrl);
				URLConnection conn = graphNode.openConnection();
				BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
				String line;
				BufferedWriter writer = new BufferedWriter(new FileWriter("facebook-friends/" + id + ".txt"));
				while ((line = in.readLine()) != null)
				{
					writer.write(line);
				}
				in.close();
				writer.flush();
				writer.close();
				
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
	
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		FacebookNetwork fn = new FacebookNetwork();
		fn.GetFriends();		
	}

}