Android Open Source - bitcoin-wallet Irc Boot Strap

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License

The source code is released under:

Copyright (C) 2011 by Caleb Anderson Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the ...

Java Source Code

package net.dirtyfilthy.bitcoin.protocol;
/*  w ww  .java  2s.  c o m*/
import java.io.DataInputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.text.ParseException;
import java.util.Arrays;
import java.util.Random;
import java.util.Vector;

import android.util.Log;

import net.dirtyfilthy.bitcoin.core.Address;
import net.dirtyfilthy.bitcoin.util.Base58;

public class IrcBootStrap {
  private Socket socket;
  private PrintStream out;
  private DataInputStream in;
  private String host,channel;
  private int port;
  private String TAG="IrcBootStrap";
  
  public IrcBootStrap(String host,int port,String channel) throws UnknownHostException, IOException, InterruptedException{
    this.host=host;
    this.port=port;
    this.channel=channel;
    
  }  
    
    
    
  public Vector<Address> getAddresses() throws InterruptedException, IOException{
    socket=new Socket(host,port);
    out=new PrintStream( socket.getOutputStream());
    in=new DataInputStream(socket.getInputStream());
    Vector<Address> addresses=new Vector<Address>();
    String nickname="x"+new Random().nextInt();
    Log.d(TAG,"Registering");
    out.println( "USER " + nickname + " 8 * : "+ nickname );
      out.println( "NICK" + " " + nickname);
      Log.d(TAG,"Starting IRC thread");
      IrcThread t=new IrcThread(in,out,channel);
      t.start();
      int timeout=20000, wait=500;
      for(int current=0;current<timeout;current=current+wait){
        Log.d(TAG,"Looping until finished, current "+current);
        if(!t.isAlive() || t.finished()){
          break;
        }
        Thread.sleep(wait);
      }
      t.finish();
      out.println( "QUIT" );
      socket.close();
      Log.d(TAG,"Decoding");
      Vector<String> encoded=t.getEncodedAddresses();
      for(String addr : encoded){
      
        if(addr.charAt(0)!='u'){
          continue;
        }
        addr=addr.substring(1);
        try {
        addresses.add(decodeAddress(addr));
      } catch (ParseException e) {
        continue;
      }
        
      }
    return addresses;
  }
  
  public Address decodeAddress(String encoded) throws UnknownHostException, ParseException{
    byte raw[]=Base58.decodeCheck(encoded);
    if(raw.length!=6){
      throw new ParseException("Decoded bytes are the wrong length.",raw.length);
    }
    byte[] addrIp=new byte[4];
    System.arraycopy(raw, 0, addrIp, 0, 4);
    int addrPort=(256*((int) raw[4] & 0xff))+((int) raw[5] & 0xff);
    Address a=new Address(InetAddress.getByAddress(addrIp),addrPort);
    return a;
  }
  
  
  
  private class IrcThread extends Thread {
    private DataInputStream in;
    private PrintStream out;
    private String channel;
    private Vector<String> encodedAddresses=new Vector<String>();
    private boolean finished=false;
    private boolean shouldFinish=false;
    IrcThread(DataInputStream in, PrintStream out, String channel){
      this.in=in;
      this.out=out;
      this.channel=channel;
      
    }
    
    public synchronized boolean finished(){
      return finished;
    }
    
    public synchronized boolean finish(){
      return shouldFinish=true;
    }
    
    
    public void run(){
      String line;
      while(!shouldFinish){
        try {
          line=in.readLine();
          
        } catch (IOException e) {
          // TODO Auto-generated catch block
          break;
        }
        String code=line.split("\\s")[1];
        if(code.equals("001")){
          out.println("JOIN "+channel);
        }
        if(code.equals("353")){
          String nicks=line.split(":")[2];
          encodedAddresses.addAll(Arrays.asList(nicks.split("\\s")));
        }
        if(code.equals("366")){
          break;
        }
        
        
        
      }
      finished=true;
      return;
    }

    @SuppressWarnings("unchecked")
    public synchronized Vector<String> getEncodedAddresses() {
      return (Vector<String>) encodedAddresses.clone();
    }
  }
    

}

Java Source Code List

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