implement ws handshake

app.js

@@ -1,6 +1,7 @@
 #!/usr/bin/env node
 
 var ExpressApp = require('./lib/expressapp');
+var WsApp = require('./lib/wsapp');
 
 var basePath = process.env.BWS_BASE_PATH || '/bws/api';
 var port = process.env.BWS_PORT || 3001;
@@ -11,14 +12,9 @@ var app = ExpressApp.start({
 //app.listen(port);
 
 var server = require('http').Server(app);
-var io = require('socket.io')(server);
 
-server.listen(port);
+var ws = WsApp.start(server);
 
-io.sockets.on('connection', function(socket) {
+server.listen(port);
-  socket.emit('message', {
-    'message': 'hello world'
-  });
-});
 
 console.log('Bitcore Wallet Service running on port ' + port);

lib/eventbroadcaster.js

@@ -1,3 +1,5 @@
+'use strict';
+
 var log = require('npmlog');
 log.debug = log.verbose;
 var inherits = require('inherits');
@@ -8,8 +10,8 @@ function EventBroadcaster() {};
 
 nodeutil.inherits(EventBroadcaster, events.EventEmitter);
 
-EventBroadcaster.prototype.broadcast = function(service, args) {
+EventBroadcaster.prototype.broadcast = function(eventName, serviceInstance, args) {
-  this.emit(service, args);
+  this.emit(eventName, serviceInstance, args);
 };
 
 var _eventBroadcasterInstance;

lib/server.js

@@ -166,8 +166,8 @@ WalletService.prototype._verifySignature = function(text, signature, pubKey) {
  *
  * @param {Object} args
  */
-WalletService.prototype._emit = function(args) {
+WalletService.prototype._emit = function(eventName, args) {
-  EventBroadcaster.broadcast(this, args);
+  EventBroadcaster.broadcast(eventName, this, args);
 };
 
 /**
@@ -190,7 +190,7 @@ WalletService.prototype._notify = function(type, data) {
     ticker: this.notifyTicker++,
   });
   this.storage.storeNotification(walletId, n, function() {
-    self._emit(n);
+    self._emit('notification', n);
   });
 };
 

lib/wsapp.js

@@ -0,0 +1,58 @@
+'use strict';
+
+var $ = require('preconditions').singleton();
+var _ = require('lodash');
+var async = require('async');
+var log = require('npmlog');
+var express = require('express');
+var querystring = require('querystring');
+var bodyParser = require('body-parser')
+var Uuid = require('uuid');
+
+var WalletService = require('./server');
+
+log.debug = log.verbose;
+log.level = 'debug';
+
+var subscriptions = {};
+
+var WsApp = function() {};
+
+WsApp.start = function(server) {
+  var self = this;
+
+  var io = require('socket.io')(server);
+
+  WalletService.onNotification(function(serviceInstance, args) {
+    var walletId = serviceInstance.walletId;
+    var copayerId = serviceInstance.copayerId;
+
+    io.to(walletId).emit('notification', args);
+  });
+
+
+  io.on('connection', function(socket) {
+    socket.nonce = Uuid.v4();
+    socket.emit('challenge', socket.nonce);
+
+    socket.on('authorize', function(data) {
+      if (data.message != socket.nonce) {
+        socket.emit('unauthorized');
+        socket.disconnect();
+        return;
+      }
+      WalletService.getInstanceWithAuth(data, function(err, res) {
+        var room = res.walletId;
+        if (err) {
+          socket.emit('unauthorized');
+          socket.disconnect();
+          return;
+        }
+        socket.join(room);
+        socket.emit('authorized');
+      });
+    });
+  });
+};
+
+module.exports = WsApp;