4 files changed, 45 insertions, 15 deletions

diff --git a/app/scripts/lib/account-tracker.js b/app/scripts/lib/account-tracker.js
index ce6642150..8c3dd8c71 100644
--- a/app/scripts/lib/account-tracker.js
+++ b/app/scripts/lib/account-tracker.js
@@ -117,8 +117,6 @@ class AccountTracker extends EventEmitter {
     const query = this._query
     async.parallel({
       balance: query.getBalance.bind(query, address),
-      nonce: query.getTransactionCount.bind(query, address),
-      code: query.getCode.bind(query, address),
     }, cb)
   }
 
diff --git a/app/scripts/lib/pending-tx-tracker.js b/app/scripts/lib/pending-tx-tracker.js
index 0d7c6a92c..e8869e6b8 100644
--- a/app/scripts/lib/pending-tx-tracker.js
+++ b/app/scripts/lib/pending-tx-tracker.js
@@ -23,7 +23,6 @@ module.exports = class PendingTransactionTracker extends EventEmitter {
     this.query = new EthQuery(config.provider)
     this.nonceTracker = config.nonceTracker
     // default is one day
-    this.retryTimePeriod = config.retryTimePeriod || 86400000
     this.getPendingTransactions = config.getPendingTransactions
     this.getCompletedTransactions = config.getCompletedTransactions
     this.publishTransaction = config.publishTransaction
@@ -65,11 +64,11 @@ module.exports = class PendingTransactionTracker extends EventEmitter {
   }
 
 
-  resubmitPendingTxs () {
+  resubmitPendingTxs (block) {
     const pending = this.getPendingTransactions()
     // only try resubmitting if their are transactions to resubmit
     if (!pending.length) return
-    pending.forEach((txMeta) => this._resubmitTx(txMeta).catch((err) => {
+    pending.forEach((txMeta) => this._resubmitTx(txMeta, block.number).catch((err) => {
       /*
       Dont marked as failed if the error is a "known" transaction warning
       "there is already a transaction with the same sender-nonce
@@ -101,13 +100,19 @@ module.exports = class PendingTransactionTracker extends EventEmitter {
     }))
   }
 
-  async _resubmitTx (txMeta) {
-    if (Date.now() > txMeta.time + this.retryTimePeriod) {
-      const hours = (this.retryTimePeriod / 3.6e+6).toFixed(1)
-      const err = new Error(`Gave up submitting after ${hours} hours.`)
-      return this.emit('tx:failed', txMeta.id, err)
+  async _resubmitTx (txMeta, latestBlockNumber) {
+    if (!txMeta.firstRetryBlockNumber) {
+      this.emit('tx:block-update', txMeta, latestBlockNumber)
     }
 
+    const firstRetryBlockNumber = txMeta.firstRetryBlockNumber || latestBlockNumber
+    const txBlockDistance = Number.parseInt(latestBlockNumber, 16) - Number.parseInt(firstRetryBlockNumber, 16)
+
+    const retryCount = txMeta.retryCount || 0
+
+    // Exponential backoff to limit retries at publishing
+    if (txBlockDistance <= Math.pow(2, retryCount) - 1) return
+
     // Only auto-submit already-signed txs:
     if (!('rawTx' in txMeta)) return
 
@@ -173,7 +178,8 @@ module.exports = class PendingTransactionTracker extends EventEmitter {
   }
 
   async _checkIfNonceIsTaken (txMeta) {
-    const completed = this.getCompletedTransactions()
+    const address = txMeta.txParams.from
+    const completed = this.getCompletedTransactions(address)
     const sameNonce = completed.filter((otherMeta) => {
       return otherMeta.txParams.nonce === txMeta.txParams.nonce
     })
diff --git a/app/scripts/lib/tx-gas-utils.js b/app/scripts/lib/tx-gas-utils.js
index 7e72ea71d..5e49fdb22 100644
--- a/app/scripts/lib/tx-gas-utils.js
+++ b/app/scripts/lib/tx-gas-utils.js
@@ -22,7 +22,11 @@ module.exports = class txProvideUtil {
     try {
       estimatedGasHex = await this.estimateTxGas(txMeta, block.gasLimit)
     } catch (err) {
-      if (err.message.includes('Transaction execution error.')) {
+      const simulationFailed = (
+        err.message.includes('Transaction execution error.') ||
+        err.message.includes('gas required exceeds allowance or always failing transaction')
+      )
+      if (simulationFailed) {
         txMeta.simulationFails = true
         return txMeta
       }
@@ -77,8 +81,26 @@ module.exports = class txProvideUtil {
   }
 
   async validateTxParams (txParams) {
-    if (('value' in txParams) && txParams.value.indexOf('-') === 0) {
-      throw new Error(`Invalid transaction value of ${txParams.value} not a positive number.`)
+    this.validateRecipient(txParams)
+    if ('value' in txParams) {
+      const value = txParams.value.toString()
+      if (value.includes('-')) {
+        throw new Error(`Invalid transaction value of ${txParams.value} not a positive number.`)
+      }
+
+      if (value.includes('.')) {
+        throw new Error(`Invalid transaction value of ${txParams.value} number must be in wei`)
+      }
+    }
+  }
+  validateRecipient (txParams) {
+    if (txParams.to === '0x') {
+      if (txParams.data) {
+        delete txParams.to
+      } else {
+        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 0fd6bed4b..a8ef39891 100644
--- a/app/scripts/lib/tx-state-manager.js
+++ b/app/scripts/lib/tx-state-manager.js
@@ -187,6 +187,10 @@ module.exports = class TransactionStateManger extends EventEmitter {
     this._setTxStatus(txId, 'rejected')
   }
 
+  // should update the status of the tx to 'unapproved'.
+  setTxStatusUnapproved (txId) {
+    this._setTxStatus(txId, 'unapproved')
+  }
   // should update the status of the tx to 'approved'.
   setTxStatusApproved (txId) {
     this._setTxStatus(txId, 'approved')
@@ -236,7 +240,7 @@ module.exports = class TransactionStateManger extends EventEmitter {
     txMeta.status = status
     this.emit(`${txMeta.id}:${status}`, txId)
     this.emit(`tx:status-update`, txId, status)
-    if (status === 'submitted' || status === 'rejected') {
+    if (['submitted', 'rejected', 'failed'].includes(status)) {
       this.emit(`${txMeta.id}:finished`, txMeta)
     }
     this.updateTx(txMeta, `txStateManager: setting status to ${status}`)