From ab126b8c7894a0cfb8e728eeed48689200ed7a6c Mon Sep 17 00:00:00 2001
From: frankiebee <frankie.diamond@gmail.com>
Date: Mon, 2 Apr 2018 15:43:32 -0700
Subject: [PATCH] transactions gasLimit - use the block gasLimit if getCode
 fails

---
 app/scripts/controllers/transactions.js | 5 +++--
 app/scripts/lib/tx-gas-utils.js         | 4 +++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/app/scripts/controllers/transactions.js b/app/scripts/controllers/transactions.js
index a18a2d2e2..31e53554d 100644
--- a/app/scripts/controllers/transactions.js
+++ b/app/scripts/controllers/transactions.js
@@ -187,12 +187,12 @@ module.exports = class TransactionController extends EventEmitter {
     // validate
     await this.txGasUtil.validateTxParams(txParams)
     // construct txMeta
-    const txMeta = this.txStateManager.generateTxMeta({txParams})
+    let txMeta = this.txStateManager.generateTxMeta({txParams})
     this.addTx(txMeta)
     this.emit('newUnapprovedTx', txMeta)
     // add default tx params
     try {
-      await this.addTxDefaults(txMeta)
+      txMeta = await this.addTxDefaults(txMeta)
     } catch (error) {
       console.log(error)
       this.txStateManager.setTxStatusFailed(txMeta.id, error)
@@ -215,6 +215,7 @@ module.exports = class TransactionController extends EventEmitter {
     }
     txParams.gasPrice = ethUtil.addHexPrefix(gasPrice.toString(16))
     txParams.value = txParams.value || '0x0'
+    if (txParams.to === null) delete txParams.to
     // set gasLimit
     return await this.txGasUtil.analyzeGasUsage(txMeta)
   }
diff --git a/app/scripts/lib/tx-gas-utils.js b/app/scripts/lib/tx-gas-utils.js
index 4be7738b0..829b4c421 100644
--- a/app/scripts/lib/tx-gas-utils.js
+++ b/app/scripts/lib/tx-gas-utils.js
@@ -52,7 +52,9 @@ module.exports = class TxGasUtil {
     // if recipient has no code, gas is 21k max:
     const recipient = txParams.to
     const hasRecipient = Boolean(recipient)
-    const code = await this.query.getCode(recipient)
+    let code
+    if (recipient) code = await this.query.getCode(recipient)
+
     if (hasRecipient && (!code || code === '0x')) {
       txParams.gas = SIMPLE_GAS_COST
       txMeta.simpleSend = true // Prevents buffer addition