From d840e81a101351bd661668cf0b1f9e5b73683890 Mon Sep 17 00:00:00 2001
From: kumavis <aaron@kumavis.me>
Date: Fri, 15 Apr 2016 12:12:04 -0700
Subject: wiring - trusted-untrusted features + remote-store

---
 app/scripts/background.js | 62 ++++++++++++++++++++++++++++-------------------
 1 file changed, 37 insertions(+), 25 deletions(-)

(limited to 'app/scripts/background.js')

diff --git a/app/scripts/background.js b/app/scripts/background.js
index f3dd8cbb6..0bd7031d8 100644
--- a/app/scripts/background.js
+++ b/app/scripts/background.js
@@ -9,8 +9,8 @@ const MetaMaskProvider = require('./lib/zero.js')
 const IdentityStore = require('./lib/idStore')
 const createTxNotification = require('./lib/tx-notification.js')
 const configManager = require('./lib/config-manager-singleton')
-const jsonParseStream = require('./lib/stream-utils.js').jsonParseStream
-const jsonStringifyStream = require('./lib/stream-utils.js').jsonStringifyStream
+const setupMultiplex = require('./lib/stream-utils.js').setupMultiplex
+const HostStore = require('./lib/remote-store.js').HostStore
 
 //
 // connect to other contexts
@@ -22,15 +22,27 @@ function connectRemote(remotePort){
   var portStream = new PortStream(remotePort)
   if (isMetaMaskInternalProcess) {
     // communication with popup
-    handleInternalCommunication(portStream)
+    setupTrustedCommunication(portStream)
   } else {
     // communication with page
-    handleEthRpcRequestStream(portStream)
+    setupUntrustedCommunication(portStream)
   }
 }
 
-function handleEthRpcRequestStream(stream){
-  stream.on('data', onRpcRequest.bind(null, stream))
+function setupUntrustedCommunication(connectionStream){
+  // setup multiplexing
+  var mx = setupMultiplex(connectionStream)
+  // connect features
+  setupProviderConnection(mx.createStream('provider'))
+  setupPublicConfig(mx.createStream('publicConfig'))
+}
+
+function setupTrustedCommunication(connectionStream){
+  // setup multiplexing
+  var mx = setupMultiplex(connectionStream)
+  // connect features
+  setupControllerConnection(mx.createStream('controller'))
+  setupProviderConnection(mx.createStream('provider'))
 }
 
 //
@@ -59,6 +71,13 @@ provider.on('block', function(block){
 var ethStore = new EthStore(provider)
 idStore.setStore(ethStore)
 
+// copy idStore substate into public store
+var publicConfigStore = new HostStore()
+idStore.on('update', function(state){
+  publicConfigStore.set('selectedAddress', state.selectedAddress)
+})
+
+
 function getState(){
   var state = extend(
     ethStore.getState(),
@@ -84,27 +103,20 @@ function onRpcRequest(remoteStream, payload){
 
 
 //
-// popup integration
+// remote features
 //
 
-function handleInternalCommunication(portStream){
-  // setup multiplexing
-  var mx = ObjectMultiplex()
-  portStream.pipe(mx).pipe(portStream)
-  mx.on('error', function(err) {
-    console.error(err)
-    // portStream.destroy()
-  })
-  portStream.on('error', function(err) {
-    console.error(err)
-    mx.destroy()
-  })
-  linkDnode(mx.createStream('dnode'))
-  handleEthRpcRequestStream(mx.createStream('provider'))
+function setupPublicConfig(stream){
+  var storeStream = publicConfigStore.createStream()
+  stream.pipe(storeStream).pipe(stream)
+}
+
+function setupProviderConnection(stream){
+  stream.on('data', onRpcRequest.bind(null, stream))
 }
 
-function linkDnode(stream){
-  var connection = Dnode({
+function setupControllerConnection(stream){
+  var dnode = Dnode({
     getState:           function(cb){ cb(null, getState()) },
     setRpcTarget:       setRpcTarget,
     useEtherscanProvider: useEtherscanProvider,
@@ -119,8 +131,8 @@ function linkDnode(stream){
     clearSeedWordCache: idStore.clearSeedWordCache.bind(idStore),
     exportAccount:      idStore.exportAccount.bind(idStore),
   })
-  stream.pipe(connection).pipe(stream)
-  connection.on('remote', function(remote){
+  stream.pipe(dnode).pipe(stream)
+  dnode.on('remote', function(remote){
 
     // push updates to popup
     ethStore.on('update', sendUpdate)
-- 
cgit