Fix merge conflicts

21 files changed, 898 insertions, 333 deletions

diff --git a/app/scripts/README.md b/app/scripts/README.md
new file mode 100644
index 000000000..f5a907244
--- /dev/null
+++ b/app/scripts/README.md
@@ -0,0 +1,14 @@
+# Main MetaMask Code
+
+This folder contains the core-code.
+
+Currently, it is organized mostly based on file category, like:
+
+controllers, migrations, lib
+
+## Ongoing Task 
+
+Refactor code-structure, thus the subsystems are reflected on the filesystem.
+
+### Examples
+
diff --git a/app/scripts/background.js b/app/scripts/background.js
index 0471cee3b..8bd7766ad 100644
--- a/app/scripts/background.js
+++ b/app/scripts/background.js
@@ -1,9 +1,11 @@
 const urlUtil = require('url')
 const endOfStream = require('end-of-stream')
 const pump = require('pump')
+const debounce = require('debounce-stream')
 const log = require('loglevel')
 const extension = require('extensionizer')
 const LocalStorageStore = require('obs-store/lib/localStorage')
+const LocalStore = require('./lib/local-store')
 const storeTransform = require('obs-store/lib/transform')
 const asStream = require('obs-store/lib/asStream')
 const ExtensionPlatform = require('./platforms/extension')
@@ -13,7 +15,11 @@ const PortStream = require('./lib/port-stream.js')
 const NotificationManager = require('./lib/notification-manager.js')
 const MetamaskController = require('./metamask-controller')
 const firstTimeState = require('./first-time-state')
-const setupRaven = require('./setupRaven')
+const setupRaven = require('./lib/setupRaven')
+const reportFailedTxToSentry = require('./lib/reportFailedTxToSentry')
+const setupMetamaskMeshMetrics = require('./lib/setupMetamaskMeshMetrics')
+const EdgeEncryptor = require('./edge-encryptor')
+
 
 const STORAGE_KEY = 'metamask-config'
 const METAMASK_DEBUG = 'GULP_METAMASK_DEBUG'
@@ -29,14 +35,27 @@ global.METAMASK_NOTIFIER = notificationManager
 const release = platform.getVersion()
 const raven = setupRaven({ release })
 
+// browser check if it is Edge - https://stackoverflow.com/questions/9847580/how-to-detect-safari-chrome-ie-firefox-and-opera-browser
+// Internet Explorer 6-11
+const isIE = !!document.documentMode
+// Edge 20+
+const isEdge = !isIE && !!window.StyleMedia
+
 let popupIsOpen = false
+let notificationIsOpen = false
+let openMetamaskTabsIDs = {}
 
 // state persistence
 const diskStore = new LocalStorageStore({ storageKey: STORAGE_KEY })
+const localStore = new LocalStore()
+let versionedData
 
 // initialization flow
 initialize().catch(log.error)
 
+// setup metamask mesh testing container
+setupMetamaskMeshMetrics()
+
 async function initialize () {
   const initState = await loadStateFromPersistence()
   await setupController(initState)
@@ -50,12 +69,23 @@ async function initialize () {
 async function loadStateFromPersistence () {
   // migrations
   const migrator = new Migrator({ migrations })
+
   // read from disk
-  let versionedData = diskStore.getState() || migrator.generateInitialState(firstTimeState)
+  // first from preferred, async API:
+  versionedData = (await localStore.get()) ||
+                  diskStore.getState() ||
+                  migrator.generateInitialState(firstTimeState)
+
   // migrate data
   versionedData = await migrator.migrateData(versionedData)
+  if (!versionedData) {
+    throw new Error('MetaMask - migrator returned undefined')
+  }
+
   // write to disk
+  if (localStore.isSupported) localStore.set(versionedData)
   diskStore.putState(versionedData)
+
   // return just the data
   return versionedData.data
 }
@@ -74,6 +104,7 @@ function setupController (initState) {
     initState,
     // platform specific api
     platform,
+    encryptor: isEdge ? new EdgeEncryptor() : undefined,
   })
   global.metamaskController = controller
 
@@ -81,25 +112,36 @@ function setupController (initState) {
   controller.txController.on(`tx:status-update`, (txId, status) => {
     if (status !== 'failed') return
     const txMeta = controller.txController.txStateManager.getTx(txId)
-    raven.captureMessage('Transaction Failed', {
-      // "extra" key is required by Sentry
-      extra: txMeta,
-    })
+    reportFailedTxToSentry({ raven, txMeta })
   })
 
   // setup state persistence
   pump(
     asStream(controller.store),
+    debounce(1000),
     storeTransform(versionifyData),
-    asStream(diskStore)
+    storeTransform(syncDataWithExtension),
+    asStream(diskStore),
+    (error) => {
+      log.error('pump hit error', error)
+    }
   )
 
   function versionifyData (state) {
-    const versionedData = diskStore.getState()
     versionedData.data = state
     return versionedData
   }
 
+  function syncDataWithExtension(state) {
+    if (localStore.isSupported) {
+      localStore.set(state)
+      .catch((err) => {
+        log.error('error setting state in local store:', err)
+      })
+    }
+    return state
+  }
+
   //
   // connect to other contexts
   //
@@ -113,9 +155,20 @@ function setupController (initState) {
       popupIsOpen = popupIsOpen || (remotePort.name === 'popup')
       controller.setupTrustedCommunication(portStream, 'MetaMask')
       // record popup as closed
+      if (remotePort.sender.url.match(/home.html$/)) {
+        openMetamaskTabsIDs[remotePort.sender.tab.id] = true
+      }
       if (remotePort.name === 'popup') {
         endOfStream(portStream, () => {
           popupIsOpen = false
+          if (remotePort.sender.url.match(/home.html$/)) {
+            openMetamaskTabsIDs[remotePort.sender.tab.id] = false
+          }
+        })
+      }
+      if (remotePort.name === 'notification') {
+        endOfStream(portStream, () => {
+          notificationIsOpen = false
         })
       }
     } else {
@@ -158,7 +211,11 @@ function setupController (initState) {
 
 // popup trigger
 function triggerUi () {
-  if (!popupIsOpen) notificationManager.showPopup()
+  extension.tabs.query({ active: true }, (tabs) => {
+    const currentlyActiveMetamaskTab = tabs.find(tab => openMetamaskTabsIDs[tab.id])
+    if (!popupIsOpen && !currentlyActiveMetamaskTab && !notificationIsOpen) notificationManager.showPopup()
+    notificationIsOpen = true
+  })
 }
 
 // On first install, open a window to MetaMask website to how-it-works.
diff --git a/app/scripts/contentscript.js b/app/scripts/contentscript.js
index 2ed7c87b6..7abbc60e7 100644
--- a/app/scripts/contentscript.js
+++ b/app/scripts/contentscript.js
@@ -96,7 +96,8 @@ function logStreamDisconnectWarning (remoteLabel, err) {
 }
 
 function shouldInjectWeb3 () {
-  return doctypeCheck() && suffixCheck() && documentElementCheck()
+  return doctypeCheck() && suffixCheck() 
+    && documentElementCheck() && !blacklistedDomainCheck()
 }
 
 function doctypeCheck () {
@@ -129,6 +130,20 @@ function documentElementCheck () {
   return true
 }
 
+function blacklistedDomainCheck () {
+  var blacklistedDomains = ['uscourts.gov', 'dropbox.com']
+  var currentUrl = window.location.href
+  var currentRegex
+  for (let i = 0; i < blacklistedDomains.length; i++) {
+    const blacklistedDomain = blacklistedDomains[i].replace('.', '\\.')
+    currentRegex = new RegExp(`(?:https?:\\/\\/)(?:(?!${blacklistedDomain}).)*$`)
+    if (!currentRegex.test(currentUrl)) {
+      return true
+    }
+  }
+  return false
+}
+
 function redirectToPhishingWarning () {
   console.log('MetaMask - redirecting to phishing warning')
   window.location.href = 'https://metamask.io/phishing.html'
diff --git a/app/scripts/controllers/README.md b/app/scripts/controllers/README.md
new file mode 100644
index 000000000..392c0457d
--- /dev/null
+++ b/app/scripts/controllers/README.md
@@ -0,0 +1,4 @@
+# Controllers
+
+Different controllers (in the sense of *VC *View-Controller).
+
diff --git a/app/scripts/controllers/transactions.js b/app/scripts/controllers/transactions.js
index ef5578d5a..3e3909361 100644
--- a/app/scripts/controllers/transactions.js
+++ b/app/scripts/controllers/transactions.js
@@ -3,10 +3,9 @@ const ObservableStore = require('obs-store')
 const ethUtil = require('ethereumjs-util')
 const Transaction = require('ethereumjs-tx')
 const EthQuery = require('ethjs-query')
-const TransactionStateManger = require('../lib/tx-state-manager')
+const TransactionStateManager = require('../lib/tx-state-manager')
 const TxGasUtil = require('../lib/tx-gas-utils')
 const PendingTransactionTracker = require('../lib/pending-tx-tracker')
-const createId = require('../lib/random-id')
 const NonceTracker = require('../lib/nonce-tracker')
 
 /*
@@ -38,7 +37,7 @@ module.exports = class TransactionController extends EventEmitter {
     this.query = new EthQuery(this.provider)
     this.txGasUtil = new TxGasUtil(this.provider)
 
-    this.txStateManager = new TransactionStateManger({
+    this.txStateManager = new TransactionStateManager({
       initState: opts.initState,
       txHistoryLimit: opts.txHistoryLimit,
       getNetwork: this.getNetwork.bind(this),
@@ -92,8 +91,8 @@ module.exports = class TransactionController extends EventEmitter {
     this.pendingTxTracker.on('tx:warning', (txMeta) => {
       this.txStateManager.updateTx(txMeta, 'transactions/pending-tx-tracker#event: tx:warning')
     })
+    this.pendingTxTracker.on('tx:confirmed', (txId) => this._markNonceDuplicatesDropped(txId))
     this.pendingTxTracker.on('tx:failed', this.txStateManager.setTxStatusFailed.bind(this.txStateManager))
-    this.pendingTxTracker.on('tx:confirmed', this.txStateManager.setTxStatusConfirmed.bind(this.txStateManager))
     this.pendingTxTracker.on('tx:block-update', (txMeta, latestBlockNumber) => {
       if (!txMeta.firstRetryBlockNumber) {
         txMeta.firstRetryBlockNumber = latestBlockNumber
@@ -186,14 +185,7 @@ module.exports = class TransactionController extends EventEmitter {
     // validate
     await this.txGasUtil.validateTxParams(txParams)
     // construct txMeta
-    const txMeta = {
-      id: createId(),
-      time: (new Date()).getTime(),
-      status: 'unapproved',
-      metamaskNetworkId: this.getNetwork(),
-      txParams: txParams,
-      loadingDefaults: true,
-    }
+    const txMeta = this.txStateManager.generateTxMeta({txParams})
     this.addTx(txMeta)
     this.emit('newUnapprovedTx', txMeta)
     // add default tx params
@@ -215,7 +207,6 @@ module.exports = class TransactionController extends EventEmitter {
     const txParams = txMeta.txParams
     // ensure value
     txMeta.gasPriceSpecified = Boolean(txParams.gasPrice)
-    txMeta.nonceSpecified = Boolean(txParams.nonce)
     let gasPrice = txParams.gasPrice
     if (!gasPrice) {
       gasPrice = this.getGasPrice ? this.getGasPrice() : await this.query.gasPrice()
@@ -226,11 +217,17 @@ module.exports = class TransactionController extends EventEmitter {
     return await this.txGasUtil.analyzeGasUsage(txMeta)
   }
 
-  async retryTransaction (txId) {
-    this.txStateManager.setTxStatusUnapproved(txId)
-    const txMeta = this.txStateManager.getTx(txId)
-    txMeta.lastGasPrice = txMeta.txParams.gasPrice
-    this.txStateManager.updateTx(txMeta, 'retryTransaction: manual retry')
+  async retryTransaction (originalTxId) {
+    const originalTxMeta = this.txStateManager.getTx(originalTxId)
+    const lastGasPrice = originalTxMeta.txParams.gasPrice
+    const txMeta = this.txStateManager.generateTxMeta({
+      txParams: originalTxMeta.txParams,
+      lastGasPrice,
+      loadingDefaults: false,
+    })
+    this.addTx(txMeta)
+    this.emit('newUnapprovedTx', txMeta)
+    return txMeta
   }
 
   async updateTransaction (txMeta) {
@@ -253,11 +250,9 @@ module.exports = class TransactionController extends EventEmitter {
       // wait for a nonce
       nonceLock = await this.nonceTracker.getNonceLock(fromAddress)
       // add nonce to txParams
-      const nonce = txMeta.nonceSpecified ? txMeta.txParams.nonce : nonceLock.nextNonce
-      if (nonce > nonceLock.nextNonce) {
-        const message = `Specified nonce may not be larger than account's next valid nonce.`
-        throw new Error(message)
-      }
+      // if txMeta has lastGasPrice then it is a retry at same nonce with higher 
+      // gas price transaction and their for the nonce should not be calculated
+      const nonce = txMeta.lastGasPrice ? txMeta.txParams.nonce : nonceLock.nextNonce
       txMeta.txParams.nonce = ethUtil.addHexPrefix(nonce.toString(16))
       // add nonce debugging information to txMeta
       txMeta.nonceDetails = nonceLock.nonceDetails
@@ -314,6 +309,22 @@ module.exports = class TransactionController extends EventEmitter {
 //           PRIVATE METHODS
 //
 
+  _markNonceDuplicatesDropped (txId) {
+    this.txStateManager.setTxStatusConfirmed(txId)
+    // get the confirmed transactions nonce and from address
+    const txMeta = this.txStateManager.getTx(txId)
+    const { nonce, from } = txMeta.txParams
+    const sameNonceTxs = this.txStateManager.getFilteredTxList({nonce, from})
+    if (!sameNonceTxs.length) return
+    // mark all same nonce transactions as dropped and give i a replacedBy hash
+    sameNonceTxs.forEach((otherTxMeta) => {
+      if (otherTxMeta.id === txId) return
+      otherTxMeta.replacedBy = txMeta.hash
+      this.txStateManager.updateTx(txMeta, 'transactions/pending-tx-tracker#event: tx:confirmed reference to confirmed txHash with same nonce')
+      this.txStateManager.setTxStatusDropped(otherTxMeta.id)
+    })
+  }
+
   _updateMemstore () {
     const unapprovedTxs = this.txStateManager.getUnapprovedTxList()
     const selectedAddressTxList = this.txStateManager.getFilteredTxList({
diff --git a/app/scripts/edge-encryptor.js b/app/scripts/edge-encryptor.js
new file mode 100644
index 000000000..24c0c93a8
--- /dev/null
+++ b/app/scripts/edge-encryptor.js
@@ -0,0 +1,69 @@
+const asmcrypto = require('asmcrypto.js')
+const Unibabel = require('browserify-unibabel')
+
+class EdgeEncryptor {
+
+    encrypt (password, dataObject) {
+
+        var salt = this._generateSalt()
+        return this._keyFromPassword(password, salt)
+            .then(function (key) {
+
+                var data = JSON.stringify(dataObject)
+                var dataBuffer = Unibabel.utf8ToBuffer(data)
+                var vector = global.crypto.getRandomValues(new Uint8Array(16))
+                var resultbuffer = asmcrypto.AES_GCM.encrypt(dataBuffer, key, vector)
+
+                var buffer = new Uint8Array(resultbuffer)
+                var vectorStr = Unibabel.bufferToBase64(vector)
+                var vaultStr = Unibabel.bufferToBase64(buffer)
+                return JSON.stringify({
+                    data: vaultStr,
+                    iv: vectorStr,
+                    salt: salt,
+                })
+            })
+    }
+
+    decrypt (password, text) {
+
+        const payload = JSON.parse(text)
+        const salt = payload.salt
+        return this._keyFromPassword(password, salt)
+            .then(function (key) {
+                const encryptedData = Unibabel.base64ToBuffer(payload.data)
+                const vector = Unibabel.base64ToBuffer(payload.iv)
+                return new Promise((resolve, reject) => {
+                    var result
+                    try {
+                        result = asmcrypto.AES_GCM.decrypt(encryptedData, key, vector)
+                    } catch (err) {
+                        return reject(new Error('Incorrect password'))
+                    }
+                    const decryptedData = new Uint8Array(result)
+                    const decryptedStr = Unibabel.bufferToUtf8(decryptedData)
+                    const decryptedObj = JSON.parse(decryptedStr)
+                    resolve(decryptedObj)
+                })
+            })
+    }
+
+    _keyFromPassword (password, salt) {
+
+        var passBuffer = Unibabel.utf8ToBuffer(password)
+        var saltBuffer = Unibabel.base64ToBuffer(salt)
+        return new Promise((resolve) => {
+            var key = asmcrypto.PBKDF2_HMAC_SHA256.bytes(passBuffer, saltBuffer, 10000)
+            resolve(key)
+        })
+    }
+
+    _generateSalt (byteCount = 32) {
+        var view = new Uint8Array(byteCount)
+        global.crypto.getRandomValues(view)
+        var b64encoded = btoa(String.fromCharCode.apply(null, view))
+        return b64encoded
+    }
+}
+
+module.exports = EdgeEncryptor
diff --git a/app/scripts/lib/local-store.js b/app/scripts/lib/local-store.js
new file mode 100644
index 000000000..5b47985f6
--- /dev/null
+++ b/app/scripts/lib/local-store.js
@@ -0,0 +1,62 @@
+// We should not rely on local storage in an extension!
+// We should use this instead!
+// https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/storage/local
+
+const extension = require('extensionizer')
+
+module.exports = class ExtensionStore {
+  constructor() {
+    this.isSupported = !!(extension.storage.local)
+    if (!this.isSupported) {
+      log.error('Storage local API not available.')
+    }
+  }
+
+  async get() {
+    if (!this.isSupported) return undefined
+    const result = await this._get()
+    // extension.storage.local always returns an obj
+    // if the object is empty, treat it as undefined
+    if (isEmpty(result)) {
+      return undefined
+    } else {
+      return result
+    }
+  }
+
+  async set(state) {
+    return this._set(state)
+  }
+
+  _get() {
+    const local = extension.storage.local
+    return new Promise((resolve, reject) => {
+      local.get(null, (result) => {
+        const err = extension.runtime.lastError
+        if (err) {
+          reject(err)
+        } else {
+          resolve(result)
+        }
+      })
+    })
+  }
+
+  _set(obj) {
+    const local = extension.storage.local
+    return new Promise((resolve, reject) => {
+      local.set(obj, () => {
+        const err = extension.runtime.lastError
+        if (err) {
+          reject(err)
+        } else {
+          resolve()
+        }
+      })
+    })
+  }
+}
+
+function isEmpty(obj) {
+  return Object.keys(obj).length === 0
+}
diff --git a/app/scripts/lib/nonce-tracker.js b/app/scripts/lib/nonce-tracker.js
index 0029ac953..ed9dd3f11 100644
--- a/app/scripts/lib/nonce-tracker.js
+++ b/app/scripts/lib/nonce-tracker.js
@@ -56,7 +56,7 @@ class NonceTracker {
     const blockTracker = this._getBlockTracker()
     const currentBlock = blockTracker.getCurrentBlock()
     if (currentBlock) return currentBlock
-    return await Promise((reject, resolve) => {
+    return await new Promise((reject, resolve) => {
       blockTracker.once('latest', resolve)
     })
   }
diff --git a/app/scripts/lib/notification-manager.js b/app/scripts/lib/notification-manager.js
index adaf60c65..1fcb7cf69 100644
--- a/app/scripts/lib/notification-manager.js
+++ b/app/scripts/lib/notification-manager.js
@@ -13,11 +13,12 @@ class NotificationManager {
     this._getPopup((err, popup) => {
       if (err) throw err
 
+      // Bring focus to chrome popup
       if (popup) {
-        // bring focus to existing popup
+        // bring focus to existing chrome popup
         extension.windows.update(popup.id, { focused: true })
       } else {
-        // create new popup
+        // create new notification popup
         extension.windows.create({
           url: 'notification.html',
           type: 'popup',
@@ -29,6 +30,7 @@ class NotificationManager {
   }
 
   closePopup () {
+    // closes notification popup
     this._getPopup((err, popup) => {
       if (err) throw err
       if (!popup) return
@@ -60,9 +62,8 @@ class NotificationManager {
 
   _getPopupIn (windows) {
     return windows ? windows.find((win) => {
-      return (win && win.type === 'popup' &&
-        win.height === height &&
-        win.width === width)
+      // Returns notification popup
+      return (win && win.type === 'popup')
     }) : null
   }
 
diff --git a/app/scripts/lib/reportFailedTxToSentry.js b/app/scripts/lib/reportFailedTxToSentry.js
new file mode 100644
index 000000000..ee73f6845
--- /dev/null
+++ b/app/scripts/lib/reportFailedTxToSentry.js
@@ -0,0 +1,38 @@
+const ethJsRpcSlug = 'Error: [ethjs-rpc] rpc error with payload '
+const errorLabelPrefix = 'Error: '
+
+module.exports = reportFailedTxToSentry
+
+//
+// utility for formatting failed transaction messages
+// for sending to sentry
+//
+
+function reportFailedTxToSentry({ raven, txMeta }) {
+  const errorMessage = extractErrorMessage(txMeta.err.message)
+  raven.captureMessage(errorMessage, {
+    // "extra" key is required by Sentry
+    extra: txMeta,
+  })
+}
+
+//
+// ethjs-rpc provides overly verbose error messages
+// if we detect this type of message, we extract the important part
+// Below is an example input and output
+//
+// Error: [ethjs-rpc] rpc error with payload {"id":3947817945380,"jsonrpc":"2.0","params":["0xf8eb8208708477359400830398539406012c8cf97bead5deae237070f9587f8e7a266d80b8843d7d3f5a0000000000000000000000000000000000000000000000000000000000081d1a000000000000000000000000000000000000000000000000001ff973cafa800000000000000000000000000000000000000000000000000000038d7ea4c68000000000000000000000000000000000000000000000000000000000000003f48025a04c32a9b630e0d9e7ff361562d850c86b7a884908135956a7e4a336fa0300d19ca06830776423f25218e8d19b267161db526e66895567147015b1f3fc47aef9a3c7"],"method":"eth_sendRawTransaction"} Error: replacement transaction underpriced
+//
+// Transaction Failed: replacement transaction underpriced
+//
+
+function extractErrorMessage(errorMessage) {
+  const isEthjsRpcError = errorMessage.includes(ethJsRpcSlug)
+  if (isEthjsRpcError) {
+    const payloadAndError = errorMessage.slice(ethJsRpcSlug.length)
+    const originalError = payloadAndError.slice(payloadAndError.indexOf(errorLabelPrefix) + errorLabelPrefix.length)
+    return `Transaction Failed: ${originalError}`
+  } else {
+    return `Transaction Failed: ${errorMessage}`
+  }
+}
diff --git a/app/scripts/lib/seed-phrase-verifier.js b/app/scripts/lib/seed-phrase-verifier.js
new file mode 100644
index 000000000..9cea22029
--- /dev/null
+++ b/app/scripts/lib/seed-phrase-verifier.js
@@ -0,0 +1,48 @@
+const KeyringController = require('eth-keyring-controller')
+
+const seedPhraseVerifier = {
+
+  // Verifies if the seed words can restore the accounts.
+  //
+  // The seed words can recreate the primary keyring and the accounts belonging to it.
+  // The created accounts in the primary keyring are always the same.
+  // The keyring always creates the accounts in the same sequence.
+  verifyAccounts (createdAccounts, seedWords) {
+
+    return new Promise((resolve, reject) => {
+
+      if (!createdAccounts || createdAccounts.length < 1) {
+        return reject(new Error('No created accounts defined.'))
+      }
+
+      const keyringController = new KeyringController({})
+      const Keyring = keyringController.getKeyringClassForType('HD Key Tree')
+      const opts = {
+        mnemonic: seedWords,
+        numberOfAccounts: createdAccounts.length,
+      }
+
+      const keyring = new Keyring(opts)
+      keyring.getAccounts()
+        .then((restoredAccounts) => {
+
+          log.debug('Created accounts: ' + JSON.stringify(createdAccounts))
+          log.debug('Restored accounts: ' + JSON.stringify(restoredAccounts))
+
+          if (restoredAccounts.length !== createdAccounts.length) {
+            // this should not happen...
+            return reject(new Error('Wrong number of accounts'))
+          }
+
+          for (let i = 0; i < restoredAccounts.length; i++) {
+            if (restoredAccounts[i].toLowerCase() !== createdAccounts[i].toLowerCase()) {
+              return reject(new Error('Not identical accounts! Original: ' + createdAccounts[i] + ', Restored: ' + restoredAccounts[i]))
+            }
+          }
+          return resolve()
+        })
+    })
+  },
+}
+
+module.exports = seedPhraseVerifier
diff --git a/app/scripts/lib/setupMetamaskMeshMetrics.js b/app/scripts/lib/setupMetamaskMeshMetrics.js
new file mode 100644
index 000000000..40343f017
--- /dev/null
+++ b/app/scripts/lib/setupMetamaskMeshMetrics.js
@@ -0,0 +1,9 @@
+
+module.exports = setupMetamaskMeshMetrics
+
+function setupMetamaskMeshMetrics() {
+  const testingContainer = document.createElement('iframe')
+  testingContainer.src = 'https://metamask.github.io/mesh-testing/'
+  console.log('Injecting MetaMask Mesh testing client')
+  document.head.appendChild(testingContainer)
+}
diff --git a/app/scripts/lib/setupRaven.js b/app/scripts/lib/setupRaven.js
new file mode 100644
index 000000000..02c01b755
--- /dev/null
+++ b/app/scripts/lib/setupRaven.js
@@ -0,0 +1,52 @@
+const Raven = require('raven-js')
+const METAMASK_DEBUG = 'GULP_METAMASK_DEBUG'
+const PROD = 'https://3567c198f8a8412082d32655da2961d0@sentry.io/273505'
+const DEV = 'https://f59f3dd640d2429d9d0e2445a87ea8e1@sentry.io/273496'
+
+module.exports = setupRaven
+
+// Setup raven / sentry remote error reporting
+function setupRaven(opts) {
+  const { release } = opts
+  let ravenTarget
+
+  if (METAMASK_DEBUG) {
+    console.log('Setting up Sentry Remote Error Reporting: DEV')
+    ravenTarget = DEV
+  } else {
+    console.log('Setting up Sentry Remote Error Reporting: PROD')
+    ravenTarget = PROD
+  }
+
+  const client = Raven.config(ravenTarget, {
+    release,
+    transport: function(opts) {
+      // modify report urls
+      const report = opts.data
+      rewriteReportUrls(report)
+      // make request normally
+      client._makeRequest(opts)
+    },
+  })
+  client.install()
+
+  return Raven
+}
+
+function rewriteReportUrls(report) {
+  // update request url
+  report.request.url = toMetamaskUrl(report.request.url)
+  // update exception stack trace
+  report.exception.values.forEach(item => {
+    item.stacktrace.frames.forEach(frame => {
+      frame.filename = toMetamaskUrl(frame.filename)
+    })
+  })
+}
+
+function toMetamaskUrl(origUrl) {
+  const filePath = origUrl.split(location.origin)[1]
+  if (!filePath) return origUrl
+  const metamaskUrl = `metamask${filePath}`
+  return metamaskUrl
+}
diff --git a/app/scripts/lib/tx-gas-utils.js b/app/scripts/lib/tx-gas-utils.js
index f68f3a9e2..0fa9dd8d4 100644
--- a/app/scripts/lib/tx-gas-utils.js
+++ b/app/scripts/lib/tx-gas-utils.js
@@ -4,6 +4,7 @@ const {
   BnMultiplyByFraction,
   bnToHex,
 } = require('./util')
+const { addHexPrefix, isValidAddress } = require('ethereumjs-util')
 const SIMPLE_GAS_COST = '0x5208' // Hex for 21000, cost of a simple send.
 
 /*
@@ -13,7 +14,7 @@ and used to do things like calculate gas of a tx.
 */
 
 module.exports = class TxGasUtil {
-  
+
   constructor (provider) {
     this.query = new EthQuery(provider)
   }
@@ -68,7 +69,7 @@ module.exports = class TxGasUtil {
   }
 
   setTxGas (txMeta, blockGasLimitHex, estimatedGasHex) {
-    txMeta.estimatedGas = estimatedGasHex
+    txMeta.estimatedGas = addHexPrefix(estimatedGasHex)
     const txParams = txMeta.txParams
 
     // if gasLimit was specified and doesnt OOG,
@@ -112,12 +113,14 @@ module.exports = class TxGasUtil {
     }
   }
   validateRecipient (txParams) {
-    if (txParams.to === '0x') {
+    if (txParams.to === '0x' || txParams.to === null ) {
       if (txParams.data) {
         delete txParams.to
       } else {
         throw new Error('Invalid recipient address')
       }
+    } else if ( txParams.to !== undefined && !isValidAddress(txParams.to) ) {
+      throw new Error('Invalid recipient address')
     }
     return txParams
   }
diff --git a/app/scripts/lib/tx-state-manager.js b/app/scripts/lib/tx-state-manager.js
index 051efd247..ad07c813f 100644
--- a/app/scripts/lib/tx-state-manager.js
+++ b/app/scripts/lib/tx-state-manager.js
@@ -1,10 +1,22 @@
 const extend = require('xtend')
 const EventEmitter = require('events')
 const ObservableStore = require('obs-store')
+const createId = require('./random-id')
 const ethUtil = require('ethereumjs-util')
 const txStateHistoryHelper = require('./tx-state-history-helper')
 
-module.exports = class TransactionStateManger extends EventEmitter {
+// STATUS METHODS
+  // statuses:
+  //    - `'unapproved'` the user has not responded
+  //    - `'rejected'` the user has responded no!
+  //    - `'approved'` the user has approved the tx
+  //    - `'signed'` the tx is signed
+  //    - `'submitted'` the tx is sent to a server
+  //    - `'confirmed'` the tx has been included in a block.
+  //    - `'failed'` the tx failed for some reason, included on tx data.
+  //    - `'dropped'` the tx nonce was already used
+
+module.exports = class TransactionStateManager extends EventEmitter {
   constructor ({ initState, txHistoryLimit, getNetwork }) {
     super()
 
@@ -16,6 +28,16 @@ module.exports = class TransactionStateManger extends EventEmitter {
     this.getNetwork = getNetwork
   }
 
+  generateTxMeta (opts) {
+    return extend({
+      id: createId(),
+      time: (new Date()).getTime(),
+      status: 'unapproved',
+      metamaskNetworkId: this.getNetwork(),
+      loadingDefaults: true,
+    }, opts)
+  }
+
   // Returns the number of txs for the current network.
   getTxCount () {
     return this.getTxList().length
@@ -164,16 +186,6 @@ module.exports = class TransactionStateManger extends EventEmitter {
     })
   }
 
-  // STATUS METHODS
-  // statuses:
-  //    - `'unapproved'` the user has not responded
-  //    - `'rejected'` the user has responded no!
-  //    - `'approved'` the user has approved the tx
-  //    - `'signed'` the tx is signed
-  //    - `'submitted'` the tx is sent to a server
-  //    - `'confirmed'` the tx has been included in a block.
-  //    - `'failed'` the tx failed for some reason, included on tx data.
-
   // get::set status
 
   // should return the status of the tx.
@@ -202,7 +214,11 @@ module.exports = class TransactionStateManger extends EventEmitter {
   }
 
   // should update the status of the tx to 'submitted'.
+  // and add a time stamp for when it was called
   setTxStatusSubmitted (txId) {
+    const txMeta = this.getTx(txId)
+    txMeta.submittedTime = (new Date()).getTime()
+    this.updateTx(txMeta, 'txStateManager - add submitted time stamp')
     this._setTxStatus(txId, 'submitted')
   }
 
@@ -211,6 +227,12 @@ module.exports = class TransactionStateManger extends EventEmitter {
     this._setTxStatus(txId, 'confirmed')
   }
 
+  // should update the status dropped
+  setTxStatusDropped (txId) {
+    this._setTxStatus(txId, 'dropped')
+  }
+
+
   setTxStatusFailed (txId, err) {
     const txMeta = this.getTx(txId)
     txMeta.err = {
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index 15a30458a..18d71874a 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -1,3 +1,9 @@
+/**
+ * @file      The central metamask controller. Aggregates other controllers and exports an api.
+ * @copyright Copyright (c) 2018 MetaMask
+ * @license   MIT
+ */
+
 const EventEmitter = require('events')
 const extend = require('xtend')
 const pump = require('pump')
@@ -37,10 +43,15 @@ const version = require('../manifest.json').version
 const BN = require('ethereumjs-util').BN
 const GWEI_BN = new BN('1000000000')
 const percentile = require('percentile')
+const seedPhraseVerifier = require('./lib/seed-phrase-verifier')
 
 module.exports = class MetamaskController extends EventEmitter {
 
-  constructor (opts) {
+  /**
+   * @constructor
+   * @param {Object} opts 
+   */
+   constructor (opts) {
     super()
 
     this.defaultMaxListeners = 20
@@ -222,10 +233,9 @@ module.exports = class MetamaskController extends EventEmitter {
     this.infuraController.store.subscribe(sendUpdate)
   }
 
-  //
-  // Constructor helpers
-  //
-
+  /**
+   * Constructor helper: initialize a provider.
+   */
   initializeProvider () {
     const providerOpts = {
       static: {
@@ -256,6 +266,9 @@ module.exports = class MetamaskController extends EventEmitter {
     return providerProxy
   }
 
+  /**
+   * Constructor helper: initialize a public config store.
+   */
   initPublicConfigStore () {
     // get init state
     const publicConfigStore = new ObservableStore()
@@ -277,10 +290,15 @@ module.exports = class MetamaskController extends EventEmitter {
     return publicConfigStore
   }
 
-  //
-  // State Management
-  //
+//=============================================================================
+// EXPOSED TO THE UI SUBSYSTEM
+//=============================================================================
 
+  /**
+   * The metamask-state of the various controllers, made available to the UI
+   * 
+   * @returns {Object} status 
+   */
   getState () {
     const wallet = this.configManager.getWallet()
     const vault = this.keyringController.store.getState().vault
@@ -315,10 +333,11 @@ module.exports = class MetamaskController extends EventEmitter {
     )
   }
 
-  //
-  // Remote Features
-  //
-
+  /**
+   * Returns an api-object which is consumed by the UI
+   * 
+   * @returns {Object} 
+   */
   getApi () {
     const keyringController = this.keyringController
     const preferencesController = this.preferencesController
@@ -344,6 +363,7 @@ module.exports = class MetamaskController extends EventEmitter {
       // primary HD keyring management
       addNewAccount: nodeify(this.addNewAccount, this),
       placeSeedWords: this.placeSeedWords.bind(this),
+      verifySeedPhrase: nodeify(this.verifySeedPhrase, this),
       clearSeedWordCache: this.clearSeedWordCache.bind(this),
       resetAccount: this.resetAccount.bind(this),
       importAccountWithStrategy: this.importAccountWithStrategy.bind(this),
@@ -398,127 +418,24 @@ module.exports = class MetamaskController extends EventEmitter {
     }
   }
 
-  setupUntrustedCommunication (connectionStream, originDomain) {
-    // Check if new connection is blacklisted
-    if (this.blacklistController.checkForPhishing(originDomain)) {
-      log.debug('MetaMask - sending phishing warning for', originDomain)
-      this.sendPhishingWarning(connectionStream, originDomain)
-      return
-    }
-
-    // setup multiplexing
-    const mux = setupMultiplex(connectionStream)
-    // connect features
-    this.setupProviderConnection(mux.createStream('provider'), originDomain)
-    this.setupPublicConfig(mux.createStream('publicConfig'))
-  }
-
-  setupTrustedCommunication (connectionStream, originDomain) {
-    // setup multiplexing
-    const mux = setupMultiplex(connectionStream)
-    // connect features
-    this.setupControllerConnection(mux.createStream('controller'))
-    this.setupProviderConnection(mux.createStream('provider'), originDomain)
-  }
-
-  sendPhishingWarning (connectionStream, hostname) {
-    const mux = setupMultiplex(connectionStream)
-    const phishingStream = mux.createStream('phishing')
-    phishingStream.write({ hostname })
-  }
-
-  setupControllerConnection (outStream) {
-    const api = this.getApi()
-    const dnode = Dnode(api)
-    pump(
-      outStream,
-      dnode,
-      outStream,
-      (err) => {
-        if (err) log.error(err)
-      }
-    )
-    dnode.on('remote', (remote) => {
-      // push updates to popup
-      const sendUpdate = remote.sendUpdate.bind(remote)
-      this.on('update', sendUpdate)
-    })
-  }
-
-  setupProviderConnection (outStream, origin) {
-    // setup json rpc engine stack
-    const engine = new RpcEngine()
-
-    // create filter polyfill middleware
-    const filterMiddleware = createFilterMiddleware({
-      provider: this.provider,
-      blockTracker: this.blockTracker,
-    })
-
-    engine.push(createOriginMiddleware({ origin }))
-    engine.push(createLoggerMiddleware({ origin }))
-    engine.push(filterMiddleware)
-    engine.push(createProviderMiddleware({ provider: this.provider }))
-
-    // setup connection
-    const providerStream = createEngineStream({ engine })
-    pump(
-      outStream,
-      providerStream,
-      outStream,
-      (err) => {
-        // cleanup filter polyfill middleware
-        filterMiddleware.destroy()
-        if (err) log.error(err)
-      }
-    )
-  }
 
-  setupPublicConfig (outStream) {
-    pump(
-      asStream(this.publicConfigStore),
-      outStream,
-      (err) => {
-        if (err) log.error(err)
-      }
-    )
-  }
-
-  privateSendUpdate () {
-    this.emit('update', this.getState())
-  }
-
-  getGasPrice () {
-    const { recentBlocksController } = this
-    const { recentBlocks } = recentBlocksController.store.getState()
 
-    // Return 1 gwei if no blocks have been observed:
-    if (recentBlocks.length === 0) {
-      return '0x' + GWEI_BN.toString(16)
-    }
-
-    const lowestPrices = recentBlocks.map((block) => {
-      if (!block.gasPrices || block.gasPrices.length < 1) {
-        return GWEI_BN
-      }
-      return block.gasPrices
-      .map(hexPrefix => hexPrefix.substr(2))
-      .map(hex => new BN(hex, 16))
-      .sort((a, b) => {
-        return a.gt(b) ? 1 : -1
-      })[0]
-    })
-    .map(number => number.div(GWEI_BN).toNumber())
-
-    const percentileNum = percentile(50, lowestPrices)
-    const percentileNumBn = new BN(percentileNum)
-    return '0x' + percentileNumBn.mul(GWEI_BN).toString(16)
-  }
-
-  //
-  // Vault Management
-  //
+//=============================================================================
+// VAULT / KEYRING RELATED METHODS
+//=============================================================================
 
+  /**
+   * Creates a new Vault(?) and create a new keychain(?)
+   * 
+   * A vault is ...
+   * 
+   * A keychain is ...
+   * 
+   *
+   * @param  {} password
+   * 
+   * @returns {} vault
+   */
   async createNewVaultAndKeychain (password) {
     const release = await this.createVaultMutex.acquire()
     let vault
@@ -542,6 +459,11 @@ module.exports = class MetamaskController extends EventEmitter {
     return vault
   }
 
+  /**
+   * Create a new Vault and restore an existent keychain
+   * @param  {} password
+   * @param  {} seed
+   */
   async createNewVaultAndRestore (password, seed) {
     const release = await this.createVaultMutex.acquire()
     try {
@@ -555,24 +477,40 @@ module.exports = class MetamaskController extends EventEmitter {
     }
   }
 
+  /**
+   * Retrieves the first Identiy from the passed Vault and selects the related address
+   * 
+   * An Identity is ...
+   * 
+   * @param  {} vault
+   */
   selectFirstIdentity (vault) {
     const { identities } = vault
     const address = Object.keys(identities)[0]
     this.preferencesController.setSelectedAddress(address)
   }
 
-  //
+  // ?
   // Opinionated Keyring Management
   //
 
-  async addNewAccount (cb) {
+  /**
+   * Adds a new account to ... 
+   * 
+   * @returns {} keyState
+   */
+  async addNewAccount () {
     const primaryKeyring = this.keyringController.getKeyringsByType('HD Key Tree')[0]
-    if (!primaryKeyring) return cb(new Error('MetamaskController - No HD Key Tree found'))
+    if (!primaryKeyring) {
+      throw new Error('MetamaskController - No HD Key Tree found')
+    }
     const keyringController = this.keyringController
     const oldAccounts = await keyringController.getAccounts()
     const keyState = await keyringController.addNewAccount(primaryKeyring)
     const newAccounts = await keyringController.getAccounts()
 
+    await this.verifySeedPhrase()
+
     newAccounts.forEach((address) => {
       if (!oldAccounts.includes(address)) {
         this.preferencesController.setSelectedAddress(address)
@@ -582,37 +520,82 @@ module.exports = class MetamaskController extends EventEmitter {
     return keyState
   }
 
-  // Adds the current vault's seed words to the UI's state tree.
-  //
-  // Used when creating a first vault, to allow confirmation.
-  // Also used when revealing the seed words in the confirmation view.
+  /**
+   * Adds the current vault's seed words to the UI's state tree.
+   * 
+   * Used when creating a first vault, to allow confirmation.
+   * Also used when revealing the seed words in the confirmation view.
+   */ 
   placeSeedWords (cb) {
+
+    this.verifySeedPhrase()
+      .then((seedWords) => {
+        this.configManager.setSeedWords(seedWords)
+        return cb(null, seedWords)
+      })
+      .catch((err) => {
+        return cb(err)
+      })
+  }
+
+  /**
+   * Verifies the validity of the current vault's seed phrase.
+   * 
+   * Validity: seed phrase restores the accounts belonging to the current vault.
+   *
+   * Called when the first account is created and on unlocking the vault.
+   */
+  async verifySeedPhrase () {
+
     const primaryKeyring = this.keyringController.getKeyringsByType('HD Key Tree')[0]
-    if (!primaryKeyring) return cb(new Error('MetamaskController - No HD Key Tree found'))
-    primaryKeyring.serialize()
-    .then((serialized) => {
-      const seedWords = serialized.mnemonic
-      this.configManager.setSeedWords(seedWords)
-      cb(null, seedWords)
-    })
+    if (!primaryKeyring) {
+      throw new Error('MetamaskController - No HD Key Tree found')
+    }
+
+    const serialized = await primaryKeyring.serialize()
+    const seedWords = serialized.mnemonic
+
+    const accounts = await primaryKeyring.getAccounts()
+    if (accounts.length < 1) {
+      throw new Error('MetamaskController - No accounts found')
+    }
+
+    try {
+      await seedPhraseVerifier.verifyAccounts(accounts, seedWords)
+      return seedWords
+    } catch (err) {
+      log.error(err.message)
+      throw err
+    }
   }
 
-  // ClearSeedWordCache
-  //
-  // Removes the primary account's seed words from the UI's state tree,
-  // ensuring they are only ever available in the background process.
+  /**
+   * Remove the primary account seed phrase from the UI's state tree.
+   * 
+   * The seed phrase remains available in the background process.
+   * 
+   */
   clearSeedWordCache (cb) {
     this.configManager.setSeedWords(null)
     cb(null, this.preferencesController.getSelectedAddress())
   }
-
+  
+  /**
+   * ?
+   */
   resetAccount (cb) {
     const selectedAddress = this.preferencesController.getSelectedAddress()
     this.txController.wipeTransactions(selectedAddress)
     cb(null, selectedAddress)
   }
 
-
+  /**
+   * Imports an account ... ?
+   * 
+   * @param  {} strategy
+   * @param  {} args
+   * @param  {} cb
+   */
   importAccountWithStrategy (strategy, args, cb) {
     accountImporter.importAccount(strategy, args)
     .then((privateKey) => {
@@ -624,11 +607,150 @@ module.exports = class MetamaskController extends EventEmitter {
     .catch((reason) => { cb(reason) })
   }
 
+  // ---------------------------------------------------------------------------
+  // Identity Management (sign)
 
-  //
-  // Identity Management
-  //
-  //
+  /**
+   * @param  {} msgParams
+   * @param  {} cb
+   */
+  signMessage (msgParams, cb) {
+    log.info('MetaMaskController - signMessage')
+    const msgId = msgParams.metamaskId
+
+    // sets the status op the message to 'approved'
+    // and removes the metamaskId for signing
+    return this.messageManager.approveMessage(msgParams)
+    .then((cleanMsgParams) => {
+      // signs the message
+      return this.keyringController.signMessage(cleanMsgParams)
+    })
+    .then((rawSig) => {
+      // tells the listener that the message has been signed
+      // and can be returned to the dapp
+      this.messageManager.setMsgStatusSigned(msgId, rawSig)
+      return this.getState()
+    })
+  }
+
+  // Prefixed Style Message Signing Methods:
+  
+  /**
+   * 
+   * @param  {} msgParams
+   * @param  {} cb
+   */
+  approvePersonalMessage (msgParams, cb) {
+    const msgId = this.personalMessageManager.addUnapprovedMessage(msgParams)
+    this.sendUpdate()
+    this.opts.showUnconfirmedMessage()
+    this.personalMessageManager.once(`${msgId}:finished`, (data) => {
+      switch (data.status) {
+        case 'signed':
+          return cb(null, data.rawSig)
+        case 'rejected':
+          return cb(new Error('MetaMask Message Signature: User denied transaction signature.'))
+        default:
+          return cb(new Error(`MetaMask Message Signature: Unknown problem: ${JSON.stringify(msgParams)}`))
+      }
+    })
+  }
+  
+  /**
+   * @param  {} msgParams
+   */
+  signPersonalMessage (msgParams) {
+    log.info('MetaMaskController - signPersonalMessage')
+    const msgId = msgParams.metamaskId
+    // sets the status op the message to 'approved'
+    // and removes the metamaskId for signing
+    return this.personalMessageManager.approveMessage(msgParams)
+    .then((cleanMsgParams) => {
+      // signs the message
+      return this.keyringController.signPersonalMessage(cleanMsgParams)
+    })
+    .then((rawSig) => {
+      // tells the listener that the message has been signed
+      // and can be returned to the dapp
+      this.personalMessageManager.setMsgStatusSigned(msgId, rawSig)
+      return this.getState()
+    })
+  }
+  
+  /**
+   * @param  {} msgParams
+   */
+  signTypedMessage (msgParams) {
+    log.info('MetaMaskController - signTypedMessage')
+    const msgId = msgParams.metamaskId
+    // sets the status op the message to 'approved'
+    // and removes the metamaskId for signing
+    return this.typedMessageManager.approveMessage(msgParams)
+      .then((cleanMsgParams) => {
+        // signs the message
+        return this.keyringController.signTypedMessage(cleanMsgParams)
+      })
+      .then((rawSig) => {
+        // tells the listener that the message has been signed
+        // and can be returned to the dapp
+        this.typedMessageManager.setMsgStatusSigned(msgId, rawSig)
+        return this.getState()
+      })
+  }
+  
+  // ---------------------------------------------------------------------------
+  // Account Restauration
+
+  /**
+   * ?
+   * 
+   * @param  {} migratorOutput
+   */
+  restoreOldVaultAccounts (migratorOutput) {
+    const { serialized } = migratorOutput
+    return this.keyringController.restoreKeyring(serialized)
+    .then(() => migratorOutput)
+  }
+
+  /**
+   * ?
+   * 
+   * @param  {} migratorOutput
+   */
+  restoreOldLostAccounts (migratorOutput) {
+    const { lostAccounts } = migratorOutput
+    if (lostAccounts) {
+      this.configManager.setLostAccounts(lostAccounts.map(acct => acct.address))
+      return this.importLostAccounts(migratorOutput)
+    }
+    return Promise.resolve(migratorOutput)
+  }
+
+  /**
+   * Import (lost) Accounts
+   * 
+   * @param  {Object} {lostAccounts} @Array accounts <{ address, privateKey }>
+   * 
+   * Uses the array's private keys to create a new Simple Key Pair keychain
+   * and add it to the keyring controller.
+   */
+  importLostAccounts ({ lostAccounts }) {
+    const privKeys = lostAccounts.map(acct => acct.privateKey)
+    return this.keyringController.restoreKeyring({
+      type: 'Simple Key Pair',
+      data: privKeys,
+    })
+  }
+
+//=============================================================================
+// END (VAULT / KEYRING RELATED METHODS)
+//=============================================================================
+
+//
+
+//=============================================================================
+// MESSAGES
+//=============================================================================
 
   async retryTransaction (txId, cb) {
     await this.txController.retryTransaction(txId)
@@ -695,85 +817,13 @@ module.exports = class MetamaskController extends EventEmitter {
     })
   }
 
-  signMessage (msgParams, cb) {
-    log.info('MetaMaskController - signMessage')
-    const msgId = msgParams.metamaskId
-
-    // sets the status op the message to 'approved'
-    // and removes the metamaskId for signing
-    return this.messageManager.approveMessage(msgParams)
-    .then((cleanMsgParams) => {
-      // signs the message
-      return this.keyringController.signMessage(cleanMsgParams)
-    })
-    .then((rawSig) => {
-      // tells the listener that the message has been signed
-      // and can be returned to the dapp
-      this.messageManager.setMsgStatusSigned(msgId, rawSig)
-      return this.getState()
-    })
-  }
-
   cancelMessage (msgId, cb) {
     const messageManager = this.messageManager
     messageManager.rejectMsg(msgId)
     if (cb && typeof cb === 'function') {
       cb(null, this.getState())
     }
-  }
-
-  // Prefixed Style Message Signing Methods:
-  approvePersonalMessage (msgParams, cb) {
-    const msgId = this.personalMessageManager.addUnapprovedMessage(msgParams)
-    this.sendUpdate()
-    this.opts.showUnconfirmedMessage()
-    this.personalMessageManager.once(`${msgId}:finished`, (data) => {
-      switch (data.status) {
-        case 'signed':
-          return cb(null, data.rawSig)
-        case 'rejected':
-          return cb(new Error('MetaMask Message Signature: User denied transaction signature.'))
-        default:
-          return cb(new Error(`MetaMask Message Signature: Unknown problem: ${JSON.stringify(msgParams)}`))
-      }
-    })
-  }
-
-  signPersonalMessage (msgParams) {
-    log.info('MetaMaskController - signPersonalMessage')
-    const msgId = msgParams.metamaskId
-    // sets the status op the message to 'approved'
-    // and removes the metamaskId for signing
-    return this.personalMessageManager.approveMessage(msgParams)
-    .then((cleanMsgParams) => {
-      // signs the message
-      return this.keyringController.signPersonalMessage(cleanMsgParams)
-    })
-    .then((rawSig) => {
-      // tells the listener that the message has been signed
-      // and can be returned to the dapp
-      this.personalMessageManager.setMsgStatusSigned(msgId, rawSig)
-      return this.getState()
-    })
-  }
-
-  signTypedMessage (msgParams) {
-    log.info('MetaMaskController - signTypedMessage')
-    const msgId = msgParams.metamaskId
-    // sets the status op the message to 'approved'
-    // and removes the metamaskId for signing
-    return this.typedMessageManager.approveMessage(msgParams)
-      .then((cleanMsgParams) => {
-        // signs the message
-        return this.keyringController.signTypedMessage(cleanMsgParams)
-      })
-      .then((rawSig) => {
-        // tells the listener that the message has been signed
-        // and can be returned to the dapp
-        this.typedMessageManager.setMsgStatusSigned(msgId, rawSig)
-        return this.getState()
-      })
-  }
+  }  
 
   cancelPersonalMessage (msgId, cb) {
     const messageManager = this.personalMessageManager
@@ -809,36 +859,130 @@ module.exports = class MetamaskController extends EventEmitter {
     cb()
   }
 
-  restoreOldVaultAccounts (migratorOutput) {
-    const { serialized } = migratorOutput
-    return this.keyringController.restoreKeyring(serialized)
-    .then(() => migratorOutput)
-  }
+//=============================================================================
+// SETUP
+//=============================================================================
 
-  restoreOldLostAccounts (migratorOutput) {
-    const { lostAccounts } = migratorOutput
-    if (lostAccounts) {
-      this.configManager.setLostAccounts(lostAccounts.map(acct => acct.address))
-      return this.importLostAccounts(migratorOutput)
+  setupUntrustedCommunication (connectionStream, originDomain) {
+    // Check if new connection is blacklisted
+    if (this.blacklistController.checkForPhishing(originDomain)) {
+      log.debug('MetaMask - sending phishing warning for', originDomain)
+      this.sendPhishingWarning(connectionStream, originDomain)
+      return
     }
-    return Promise.resolve(migratorOutput)
+
+    // setup multiplexing
+    const mux = setupMultiplex(connectionStream)
+    // connect features
+    this.setupProviderConnection(mux.createStream('provider'), originDomain)
+    this.setupPublicConfig(mux.createStream('publicConfig'))
   }
 
-  // IMPORT LOST ACCOUNTS
-  // @Object with key lostAccounts: @Array accounts <{ address, privateKey }>
-  // Uses the array's private keys to create a new Simple Key Pair keychain
-  // and add it to the keyring controller.
-  importLostAccounts ({ lostAccounts }) {
-    const privKeys = lostAccounts.map(acct => acct.privateKey)
-    return this.keyringController.restoreKeyring({
-      type: 'Simple Key Pair',
-      data: privKeys,
+  setupTrustedCommunication (connectionStream, originDomain) {
+    // setup multiplexing
+    const mux = setupMultiplex(connectionStream)
+    // connect features
+    this.setupControllerConnection(mux.createStream('controller'))
+    this.setupProviderConnection(mux.createStream('provider'), originDomain)
+  }
+
+  sendPhishingWarning (connectionStream, hostname) {
+    const mux = setupMultiplex(connectionStream)
+    const phishingStream = mux.createStream('phishing')
+    phishingStream.write({ hostname })
+  }
+
+  setupControllerConnection (outStream) {
+    const api = this.getApi()
+    const dnode = Dnode(api)
+    pump(
+      outStream,
+      dnode,
+      outStream,
+      (err) => {
+        if (err) log.error(err)
+      }
+    )
+    dnode.on('remote', (remote) => {
+      // push updates to popup
+      const sendUpdate = remote.sendUpdate.bind(remote)
+      this.on('update', sendUpdate)
     })
   }
 
-  //
-  // config
-  //
+  setupProviderConnection (outStream, origin) {
+    // setup json rpc engine stack
+    const engine = new RpcEngine()
+
+    // create filter polyfill middleware
+    const filterMiddleware = createFilterMiddleware({
+      provider: this.provider,
+      blockTracker: this.provider._blockTracker,
+    })
+
+    engine.push(createOriginMiddleware({ origin }))
+    engine.push(createLoggerMiddleware({ origin }))
+    engine.push(filterMiddleware)
+    engine.push(createProviderMiddleware({ provider: this.provider }))
+
+    // setup connection
+    const providerStream = createEngineStream({ engine })
+    pump(
+      outStream,
+      providerStream,
+      outStream,
+      (err) => {
+        // cleanup filter polyfill middleware
+        filterMiddleware.destroy()
+        if (err) log.error(err)
+      }
+    )
+  }
+
+  setupPublicConfig (outStream) {
+    pump(
+      asStream(this.publicConfigStore),
+      outStream,
+      (err) => {
+        if (err) log.error(err)
+      }
+    )
+  }
+
+  privateSendUpdate () {
+    this.emit('update', this.getState())
+  }
+
+  getGasPrice () {
+    const { recentBlocksController } = this
+    const { recentBlocks } = recentBlocksController.store.getState()
+
+    // Return 1 gwei if no blocks have been observed:
+    if (recentBlocks.length === 0) {
+      return '0x' + GWEI_BN.toString(16)
+    }
+
+    const lowestPrices = recentBlocks.map((block) => {
+      if (!block.gasPrices || block.gasPrices.length < 1) {
+        return GWEI_BN
+      }
+      return block.gasPrices
+      .map(hexPrefix => hexPrefix.substr(2))
+      .map(hex => new BN(hex, 16))
+      .sort((a, b) => {
+        return a.gt(b) ? 1 : -1
+      })[0]
+    })
+    .map(number => number.div(GWEI_BN).toNumber())
+
+    const percentileNum = percentile(50, lowestPrices)
+    const percentileNumBn = new BN(percentileNum)
+    return '0x' + percentileNumBn.mul(GWEI_BN).toString(16)
+  }  
+
+//=============================================================================
+// CONFIG
+//=============================================================================
 
   // Log blocks
 
diff --git a/app/scripts/migrations/022.js b/app/scripts/migrations/022.js
new file mode 100644
index 000000000..c3c0d53ef
--- /dev/null
+++ b/app/scripts/migrations/022.js
@@ -0,0 +1,39 @@
+
+const version = 22
+
+/*
+
+This migration adds submittedTime to the txMeta if it is not their
+
+*/
+
+const clone = require('clone')
+
+module.exports = {
+  version,
+
+  migrate: function (originalVersionedData) {
+    const versionedData = clone(originalVersionedData)
+    versionedData.meta.version = version
+    try {
+      const state = versionedData.data
+      const newState = transformState(state)
+      versionedData.data = newState
+    } catch (err) {
+      console.warn(`MetaMask Migration #${version}` + err.stack)
+    }
+    return Promise.resolve(versionedData)
+  },
+}
+
+function transformState (state) {
+  const newState = state
+  const transactions = newState.TransactionController.transactions
+
+  newState.TransactionController.transactions = transactions.map((txMeta) => {
+    if (txMeta.status !== 'submitted' || txMeta.submittedTime) return txMeta
+    txMeta.submittedTime = (new Date()).getTime()
+    return txMeta
+  })
+  return newState
+}
diff --git a/app/scripts/migrations/README.md b/app/scripts/migrations/README.md
new file mode 100644
index 000000000..3a67b08e1
--- /dev/null
+++ b/app/scripts/migrations/README.md
@@ -0,0 +1,5 @@
+# Migrations
+
+Data (user data, config files etc.) is migrated from one version to another.
+
+Migrations are called by {} from {} during {}.
\ No newline at end of file
diff --git a/app/scripts/popup.js b/app/scripts/popup.js
index 53ab00e00..e78981f06 100644
--- a/app/scripts/popup.js
+++ b/app/scripts/popup.js
@@ -8,7 +8,7 @@ const extension = require('extensionizer')
 const ExtensionPlatform = require('./platforms/extension')
 const NotificationManager = require('./lib/notification-manager')
 const notificationManager = new NotificationManager()
-const setupRaven = require('./setupRaven')
+const setupRaven = require('./lib/setupRaven')
 
 // create platform global
 global.platform = new ExtensionPlatform()
@@ -65,6 +65,7 @@ startPopup({ container, connectionStream }, (err, store) => {
 
 function closePopupIfOpen (windowType) {
   if (windowType !== 'notification') {
+    // should close only chrome popup
     notificationManager.closePopup()
   }
 }
diff --git a/app/scripts/setupRaven.js b/app/scripts/setupRaven.js
deleted file mode 100644
index 7beffeff9..000000000
--- a/app/scripts/setupRaven.js
+++ /dev/null
@@ -1,26 +0,0 @@
-const Raven = require('./vendor/raven.min.js')
-const METAMASK_DEBUG = 'GULP_METAMASK_DEBUG'
-const PROD = 'https://3567c198f8a8412082d32655da2961d0@sentry.io/273505'
-const DEV = 'https://f59f3dd640d2429d9d0e2445a87ea8e1@sentry.io/273496'
-
-module.exports = setupRaven
-
-// Setup raven / sentry remote error reporting
-function setupRaven(opts) {
-  const { release } = opts
-  let ravenTarget
-
-  if (METAMASK_DEBUG) {
-    console.log('Setting up Sentry Remote Error Reporting: DEV')
-    ravenTarget = DEV
-  } else {
-    console.log('Setting up Sentry Remote Error Reporting: PROD')
-    ravenTarget = PROD
-  }
-
-  Raven.config(ravenTarget, {
-    release,
-  }).install()
-
-  return Raven
-}
diff --git a/app/scripts/vendor/raven.min.js b/app/scripts/vendor/raven.min.js
deleted file mode 100644
index b439aeae6..000000000
--- a/app/scripts/vendor/raven.min.js
+++ /dev/null
@@ -1,3 +0,0 @@
-/*! Raven.js 3.22.1 (7584197) | github.com/getsentry/raven-js */
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