Wednesday, January 09, 2008

Happy New year, have a server for 08

Happy 2008.

I'm in the middle of finishing up my Object Orientated Application Assignment, and i ran across this piece of code in my repository.


public class ServerInstance {

private Socket Connection;
private BufferedOutputStream Outbound;
private InputStream Inbound;
private HTTPData RawHttpData;

private int listeningPort;

private boolean connectionEstablished = false;
private boolean instanceComplete = false;

public ServerInstance(){
//This one Sets all variables to defaults
listeningPort = Preferences.DEFAULTPORT;

/*public ServerInstance(Preferences){


public boolean run(){
ServerSocket ListenSocket;

boolean retBool = false;
boolean endLoop = false;
int readValue = -1024; // Set to extreme value to show that it is default;
int i = 0;

* How the Server Will work
* 1. Get the Data from the browser / Read the Stream
* 2. Send Data off to extract the headers
* 3. While Data is being Processed Send data back to the client
* 4. Flag that server action is complete, and shutdown and clean up
ListeningSocket = new ServerSocket( listeningPort );

Connection = ListeningSocket.accept();

connectionEstablished = true;

//1. Get Data from Browser
Inbound = Connection.getInputStream();

Outbound = new BufferedOutputStream ( Connection.getOutputStream() ); //Place output in a Buffered Stream

//Write to both Objects simultainously
while( !endLoop ){
readValue =;

if(readValue != -1){
Outbound.write( readValue ); //Send data to the client
RawHttpData.write( readValue ); //Write data to a HTTPData Object
endLoop = true;

Outbound.flush(); //Make sure all the data has been sent back to the browser
//Just while we code
System.out.println("Server: has RX/TX " + i + " Bytes of data");

//4. Clean up

instanceComplete = true;
catch(IOException e){
System.out.println("<-- Server Error -->");
System.err.print( e );
catch(IllegalBlockingModeException e){
//I doubt this will come up, but refer to java documentation on serversocket.accept() in the event it does
System.out.println("<-- Server says no! -->");
System.err.print( e );
return retBool;

public boolean isConnected(){
return connectionEstablished;

public boolean isComplete(){
return instanceComplete;

Code is released under the GPL 2.0 License, go forth and improve (and credit).

This is a working server implementation in java, a relic from my isolation project,( Isolation was meant to act as a personal proxy, similar to how google gears works, however their wouldn't need to modification to the web app, as isolation was meant to pre-fetch the data, based on monitor the users actions/http requests.).

Anyway as you can imagine this was a big project, coupled with my second major data disaster, it didn't really ever see the light of day.

Couple of things to mention, the Preferences class was a data structure to store, ... well user preferences, and the class was meant to implement the runnable interface, so that you could operate multiple server instances.

I learnt a lot researching for it, and thanks to it i have a very good idea of how the HTTP protocol works, however i think it was a little too complex for someone at my current level, i should really stick to trying to reverse engineer front row, and learning lisp.

On the note of the reversing of front row, a plugin called sapphire was released last year. From what i can determine they have worked out how to beat apples protection scheme governing the loading of foreign NSbundles (Yeah, i know about them!). So when i finally get around to it, i'll (try to) reverse it as well.

Quote of the Day
"Rave for business"

I love Capitalism, don't you

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