x.receive = function(packet){
if(!lob.isPacket(packet) || packet.head.length !== 0) return (x.err='invalid packet')&&false;
if(!x.session) return (x.err='handshake sync required')&&false;
var inner = x.session.decrypt(packet.body.slice(16));
if(!inner) return (x.err='decrypt failed: '+x.session.err)&&false;
return lob.decode(inner);
};
function receive_decloak(packet, pipe){
if(!lob.isPacket(packet) && !(packet = lob.decloak(packet)))
return new Error('invalid packet ' + typeof packet);
if(packet.cloaked)
pipe.cloaked = true;
return packet;
}
pipe.send = function()
{
pipe.keepalive();
pipe.sentAt = Date.now();
if(typeof pipe.onSend != 'function') return console.log('internal error, no pipe.onSend',pipe);
// automatically add cloaking
if(pipe.cloaked && lob.isPacket(arguments[0])) arguments[0] = lob.cloak(arguments[0]);
pipe.onSend.apply(pipe,arguments);
}
x.send = function(inner, arg){
if(typeof inner != 'object') return (x.err='invalid inner packet')&&false;
if(!x.sending) return (x.err='send with no sending handler')&&false;
if(!x.session) return (x.err='send with no session')&&false;
if(!lob.isPacket(inner)) inner = lob.packet(inner.json,inner.body); // convenience
self.debug('channel encrypting',inner.json,inner.body.length);
var enc = x.session.encrypt(inner);
if(!enc) return (x.err='session encryption failed: '+x.session.err)&&false;
// use senders token for routing
var packet = lob.packet(null,Buffer.concat([x.session.token,enc]))
if(typeof x.sending == 'function') x.sending(packet, arg);
return packet;
};