@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) throws Exception {
Object m = e.getMessage();
if (!(m instanceof ChannelBuffer)) {
ctx.sendUpstream(e);
return;
}
ChannelBuffer input = (ChannelBuffer) m;
if (!input.readable()) {
return;
}
ChannelBuffer cumulation = cumulation(ctx);
if (cumulation.readable()) {
cumulation.discardReadBytes();
cumulation.writeBytes(input);
callDecode(ctx, e.getChannel(), cumulation, e.getRemoteAddress());
} else {
callDecode(ctx, e.getChannel(), input, e.getRemoteAddress());
if (input.readable()) {
cumulation.writeBytes(input);
}
}
}
@Override
protected Object decode(ChannelHandlerContext ctx, Channel channel, ChannelBuffer buffer) {
try {
// Header and length
if (buffer.readableBytes() < 6) {
return null;
}
// New byte array for length
byte[] Length = buffer.readBytes(4).array();
if (Length[0] == 60) {
buffer.discardReadBytes();
String policy =
"<?xml version=\"1.0\"?>\r\n"
+ "<!DOCTYPE cross-domain-policy SYSTEM \"/xml/dtds/cross-domain-policy.dtd\">\r\n"
+ "<cross-domain-policy>\r\n"
+ "<allow-access-from domain=\"*\" to-ports=\"*\" />\r\n"
+ "</cross-domain-policy>\0";
channel.write(policy);
} else {
// Retrieve length in integer form
Integer newLength = BitConverter.toInt32(Length, 0);
// New channel buffer to read the packet from given length
ChannelBuffer msg = buffer.readBytes(newLength);
// Turn to byte buffer for header
Short id = ByteBuffer.wrap(msg.readBytes(2).array()).asShortBuffer().get();
return new ClientMessage(id, msg);
}
} catch (Exception e) {
}
return null;
}