Make default providers more easiliy configurable for metamask devs

No longer do our `mainnet` and `testnet` buttons set specific RPC urls. Now they set `provider.type`, which gets interpreted with code.

Currently the provider types of `mainnet` and `testnet` point to our new scalable backends, but these could be re-interpreted to use any other provider, be it etherscan, peer to peer, or otherwise.

Makes it easier for us to upgrade our infrastructure without incorporating migration logic into the program.

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## Current Master
 
+- Initial usage of scalable blockchain backend.
+- Made official providers more easily configurable for us internally.
+
 ## 1.8.0 2016-05-10
 
 - Add support for calls to `eth.sign`.

app/scripts/background.js

@@ -168,6 +168,7 @@ function setupControllerConnection(stream){
   var dnode = Dnode({
     getState:           function(cb){ cb(null, getState()) },
     setRpcTarget:       setRpcTarget,
+    setProviderType:    setProviderType,
     useEtherscanProvider: useEtherscanProvider,
     // forward directly to idStore
     createNewVault:     idStore.createNewVault.bind(idStore),
@@ -255,6 +256,12 @@ function setRpcTarget(rpcTarget){
   idStore.getNetwork(3) // 3 retry attempts
 }
 
+function setProviderType(type) {
+  configManager.setProviderType(type)
+  chrome.runtime.reload()
+  idStore.getNetwork(3)
+}
+
 function useEtherscanProvider() {
   configManager.useEtherscanProvider()
   chrome.runtime.reload()

app/scripts/lib/config-manager.js

@@ -2,7 +2,8 @@ const Migrator = require('pojo-migrator')
 const extend = require('xtend')
 
 const STORAGE_KEY = 'metamask-config'
-const DEFAULT_RPC = 'https://testrpc.metamask.io/'
+const TESTNET_RPC = 'http://morden.infura.io'
+const MAINNET_RPC = 'http://mainnet.infura.io/'
 
 const migrations = require('./migrations')
 
@@ -59,8 +60,7 @@ ConfigManager.prototype.getConfig = function() {
   } else {
     return {
       provider: {
-        type: 'rpc',
+        type: 'testnet',
-        rpcTarget: DEFAULT_RPC,
       }
     }
   }
@@ -75,6 +75,14 @@ ConfigManager.prototype.setRpcTarget = function(rpcUrl) {
   this.setConfig(config)
 }
 
+ConfigManager.prototype.setProviderType = function(type) {
+  var config = this.getConfig()
+  config.provider = {
+    type: type,
+  }
+  this.setConfig(config)
+}
+
 ConfigManager.prototype.useEtherscanProvider = function() {
   var config = this.getConfig()
   config.provider = {
@@ -130,9 +138,19 @@ ConfigManager.prototype.getShouldShowSeedWords = function() {
 }
 
 ConfigManager.prototype.getCurrentRpcAddress = function() {
-  var config = this.getConfig()
+  var provider = this.getProvider()
-  if (!config) return null
+  if (!provider) return null
-  return config.provider && config.provider.rpcTarget ? config.provider.rpcTarget : DEFAULT_RPC
+    switch (provider.type) {
+
+      case 'mainnet':
+        return MAINNET_RPC
+
+      case 'testnet':
+        return TESTNET_RPC
+
+      default:
+        return provider && provider.rpcTarget ? provider.rpcTarget : TESTNET_RPC
+   }
 }
 
 ConfigManager.prototype.clearWallet = function() {
@@ -246,7 +264,9 @@ function loadData() {
     },
     data: {
       config: {
-        rpcTarget: DEFAULT_RPC,
+        provider: {
+          type: 'testnet',
+        }
       }
     }
   }, oldData ? oldData : null, newData ? newData : null)

ui/app/actions.js

@@ -77,10 +77,12 @@ var actions = {
   // config screen
   SHOW_CONFIG_PAGE: 'SHOW_CONFIG_PAGE',
   SET_RPC_TARGET: 'SET_RPC_TARGET',
+  SET_PROVIDER_TYPE: 'SET_PROVIDER_TYPE',
   USE_ETHERSCAN_PROVIDER: 'USE_ETHERSCAN_PROVIDER',
   useEtherscanProvider: useEtherscanProvider,
   showConfigPage: showConfigPage,
   setRpcTarget: setRpcTarget,
+  setProviderType: setProviderType,
   // hacky - need a way to get a reference to account manager
   _setAccountManager: _setAccountManager,
   // loading overlay
@@ -369,6 +371,14 @@ function setRpcTarget(newRpc) {
   }
 }
 
+function setProviderType(type) {
+  _accountManager.setProviderType(type)
+  return {
+    type: this.SET_PROVIDER_TYPE,
+    value: type,
+  }
+}
+
 function useEtherscanProvider() {
   _accountManager.useEtherscanProvider()
   return {

ui/app/config.js

@@ -84,7 +84,7 @@ ConfigScreen.prototype.render = function() {
               },
               onClick(event) {
                 event.preventDefault()
-                state.dispatch(actions.setRpcTarget('https://rpc.metamask.io/'))
+                state.dispatch(actions.setProviderType('mainnet'))
               }
             }, 'Use Main Network')
           ]),
@@ -96,7 +96,7 @@ ConfigScreen.prototype.render = function() {
               },
               onClick(event) {
                 event.preventDefault()
-                state.dispatch(actions.setRpcTarget('https://testrpc.metamask.io/'))
+                state.dispatch(actions.setProviderType('testnet'))
               }
             }, 'Use Morden Test Network')
           ]),
@@ -120,9 +120,28 @@ ConfigScreen.prototype.render = function() {
 }
 
 function currentProviderDisplay(metamaskState) {
-  var rpc = metamaskState.provider.rpcTarget
+  var provider = metamaskState.provider
+  var title, value
+
+  switch (provider.type) {
+
+    case 'mainnet':
+      title = 'Current Network'
+      value = 'Main Ethereum Network'
+      break
+
+    case 'testnet':
+      title = 'Current Network'
+      value = 'Morden Test Network'
+      break
+
+    default:
+      title = 'Current RPC'
+      value = metamaskState.provider.rpcTarget
+ }
+
   return h('div', [
-    h('span', {style: { fontWeight: 'bold', paddingRight: '10px'}}, 'Current RPC'),
+    h('span', {style: { fontWeight: 'bold', paddingRight: '10px'}}, title),
-    h('span', rpc)
+    h('span', value)
   ])
 }

ui/app/reducers/metamask.js

@@ -38,7 +38,17 @@ function reduceMetamask(state, action) {
 
   case actions.SET_RPC_TARGET:
     return extend(metamaskState, {
+      provider: {
+        type: 'rpc',
         rpcTarget: action.value,
+      },
+    })
+
+  case actions.SET_PROVIDER_TYPE:
+    return extend(metamaskState, {
+      provider: {
+        type: action.value,
+      },
     })
 
   case actions.COMPLETED_TX: