Web Sockets: Browser won't receive the message, complains about it not starting with 0x00 (byte)
- by giggsey
Here is my code:
import java.net.*;
import java.io.*;
import java.util.*;
import org.jibble.pircbot.*;
public class WebSocket
{
public static int port = 12345;
public static ArrayList<WebSocketClient> clients = new ArrayList<WebSocketClient>();
public static ArrayList<Boolean> handshakes = new ArrayList<Boolean>();
public static ArrayList<String> nicknames = new ArrayList<String>();
public static ArrayList<String> channels = new ArrayList<String>();
public static int indexNum;
public static void main(String args[])
{
try
{
ServerSocket ss = new ServerSocket(WebSocket.port);
WebSocket.console("Created socket on port " + WebSocket.port);
while (true)
{
Socket s = ss.accept();
WebSocket.console("New Client connecting...");
WebSocket.handshakes.add(WebSocket.indexNum,false);
WebSocket.nicknames.add(WebSocket.indexNum,"");
WebSocket.channels.add(WebSocket.indexNum,"");
WebSocketClient p = new WebSocketClient(s,WebSocket.indexNum);
Thread t = new Thread(
p);
WebSocket.clients.add(WebSocket.indexNum,p);
indexNum++;
t.start();
}
}
catch (Exception e)
{
WebSocket.console("ERROR - " + e.toString());
}
}
public static void console(String msg)
{
Date date = new Date();
System.out.println("[" + date.toString() + "] " + msg);
}
}
class WebSocketClient implements Runnable
{
private Socket s;
private int iAm;
private String socket_res = "";
private String socket_host = "";
private String socket_origin = "";
protected String nick = "";
protected String ircChan = "";
WebSocketClient(Socket socket, int mynum)
{
s = socket;
iAm = mynum;
}
public void run()
{
String client = s.getInetAddress().toString();
WebSocket.console("Connection from " + client);
IRCclient irc = new IRCclient(iAm);
Thread t = new Thread(
irc
);
try
{
Scanner in = new Scanner(s.getInputStream());
PrintWriter out = new PrintWriter(s.getOutputStream(),true);
while (true)
{
if (! in.hasNextLine()) continue;
String input = in.nextLine().trim();
if (input.isEmpty()) continue;
// Lets work out what's wrong with our input
if (input.length() > 3 && input.charAt(0) == 65533)
{
input = input.substring(2);
}
WebSocket.console("< " + input);
// Lets work out if they authenticate...
if (WebSocket.handshakes.get(iAm) == false)
{
checkForHandShake(input);
continue;
}
// Lets check for NICK:
if (input.length() > 6 && input.substring(0,6).equals("NICK: "))
{
nick = input.substring(6);
Random generator = new Random();
int rand = generator.nextInt();
WebSocket.console("I am known as " + nick);
WebSocket.nicknames.set(iAm, "bo-" + nick + rand);
}
if (input.length() > 9 && input.substring(0,9).equals("CHANNEL: "))
{
ircChan = "bo-" + input.substring(9);
WebSocket.console("We will be joining " + ircChan);
WebSocket.channels.set(iAm, ircChan);
}
if (! ircChan.isEmpty() && ! nick.isEmpty() && irc.started == false)
{
irc.chan = ircChan;
irc.nick = WebSocket.nicknames.get(iAm);
t.start();
continue;
}
else
{
irc.msg(input);
}
}
}
catch (Exception e)
{
WebSocket.console(e.toString());
e.printStackTrace();
}
t.stop();
WebSocket.channels.remove(iAm);
WebSocket.clients.remove(iAm);
WebSocket.handshakes.remove(iAm);
WebSocket.nicknames.remove(iAm);
WebSocket.console("Closing connection from " + client);
}
private void checkForHandShake(String input)
{
// Check for HTML5 Socket
getHeaders(input);
if (! socket_res.isEmpty() && ! socket_host.isEmpty() && ! socket_origin.isEmpty())
{
send("HTTP/1.1 101 Web Socket Protocol Handshake\r\n" +
"Upgrade: WebSocket\r\n" +
"Connection: Upgrade\r\n" +
"WebSocket-Origin: " + socket_origin + "\r\n" +
"WebSocket-Location: ws://" + socket_host + "/\r\n\r\n",false);
WebSocket.handshakes.set(iAm,true);
}
return;
}
private void getHeaders(String input)
{
if (input.length() >= 8 && input.substring(0,8).equals("Origin: "))
{
socket_origin = input.substring(8);
return;
}
if (input.length() >= 6 && input.substring(0,6).equals("Host: "))
{
socket_host = input.substring(6);
return;
}
if (input.length() >= 7 && input.substring(0,7).equals("Cookie:"))
{
socket_res = ".";
}
/*input = input.substring(4);
socket_res = input.substring(0,input.indexOf(" HTTP"));
input = input.substring(input.indexOf("Host:") + 6);
socket_host = input.substring(0,input.indexOf("\r\n"));
input = input.substring(input.indexOf("Origin:") + 8);
socket_origin = input.substring(0,input.indexOf("\r\n"));*/
return;
}
protected void send(String msg, boolean newline)
{
byte c0 = 0x00;
byte c255 = (byte) 0xff;
try
{
PrintWriter out = new PrintWriter(s.getOutputStream(),true);
WebSocket.console("> " + msg);
if (newline == true)
msg = msg + "\n";
out.print(msg + c255);
out.flush();
}
catch (Exception e)
{
WebSocket.console(e.toString());
}
}
protected void send(String msg)
{
try
{
WebSocket.console(">> " + msg);
byte[] message = msg.getBytes();
byte[] newmsg = new byte[message.length + 2];
newmsg[0] = (byte)0x00;
for (int i = 1; i <= message.length; i++)
{
newmsg[i] = message[i - 1];
}
newmsg[message.length + 1] = (byte)0xff;
// This prints correctly..., apparently...
System.out.println(Arrays.toString(newmsg));
OutputStream socketOutputStream = s.getOutputStream();
socketOutputStream.write(newmsg);
}
catch (Exception e)
{
WebSocket.console(e.toString());
}
}
protected void send(String msg, boolean one, boolean two)
{
try
{
WebSocket.console(">> " + msg);
byte[] message = msg.getBytes();
byte[] newmsg = new byte[message.length+1];
for (int i = 0; i < message.length; i++)
{
newmsg[i] = message[i];
}
newmsg[message.length] = (byte)0xff;
// This prints correctly..., apparently...
System.out.println(Arrays.toString(newmsg));
OutputStream socketOutputStream = s.getOutputStream();
socketOutputStream.write(newmsg);
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
class IRCclient implements Runnable
{
protected String nick;
protected String chan;
protected int iAm;
boolean started = false;
IRCUser irc;
IRCclient(int me)
{
iAm = me;
irc = new IRCUser(iAm);
}
public void run()
{
WebSocket.console("Connecting to IRC...");
started = true;
irc.setNick(nick);
irc.setVerbose(false);
irc.connectToIRC(chan);
}
void msg(String input)
{
irc.sendMessage("#" + chan, input);
}
}
class IRCUser extends PircBot
{
int iAm;
IRCUser(int me)
{
iAm = me;
}
public void setNick(String nick)
{
this.setName(nick);
}
public void connectToIRC(String chan)
{
try
{
this.connect("irc.appliedirc.com");
this.joinChannel("#" + chan);
}
catch (Exception e)
{
WebSocket.console(e.toString());
}
}
public void onMessage(String channel, String sender,String login, String hostname, String message)
{
// Lets send this message to me
WebSocket.clients.get(iAm).send(message);
}
}
Whenever I try to send the message to the browser (via Web Sockets), it complains that it doesn't start with 0x00 (which is a byte).
Any ideas?
Edit 19/02 - Added the entire code. I know it's real messy and not neat, but I want to get it functioning first.
Spend last two days trying to fix.
