1 files changed, 0 insertions, 136 deletions
diff --git a/app/scripts/lib/tx-utils.js b/app/scripts/lib/tx-utils.js
deleted file mode 100644
index e8e23f8b5..000000000
--- a/app/scripts/lib/tx-utils.js
+++ /dev/null
@@ -1,136 +0,0 @@
-const async = require('async')
-const EthQuery = require('eth-query')
-const ethUtil = require('ethereumjs-util')
-const Transaction = require('ethereumjs-tx')
-const normalize = require('eth-sig-util').normalize
-const BN = ethUtil.BN
-
-/*
-tx-utils are utility methods for Transaction manager
-its passed a provider and that is passed to ethquery
-and used to do things like calculate gas of a tx.
-*/
-
-module.exports = class txProviderUtils {
-
-  constructor (provider) {
-    this.provider = provider
-    this.query = new EthQuery(provider)
-  }
-
-  analyzeGasUsage (txMeta, cb) {
-    var self = this
-    this.query.getBlockByNumber('latest', true, (err, block) => {
-      if (err) return cb(err)
-      async.waterfall([
-        self.estimateTxGas.bind(self, txMeta, block.gasLimit),
-        self.setTxGas.bind(self, txMeta, block.gasLimit),
-      ], cb)
-    })
-  }
-
-  estimateTxGas (txMeta, blockGasLimitHex, cb) {
-    const txParams = txMeta.txParams
-    // check if gasLimit is already specified
-    txMeta.gasLimitSpecified = Boolean(txParams.gas)
-    // if not, fallback to block gasLimit
-    if (!txMeta.gasLimitSpecified) {
-      txParams.gas = blockGasLimitHex
-    }
-    // run tx, see if it will OOG
-    this.query.estimateGas(txParams, cb)
-  }
-
-  setTxGas (txMeta, blockGasLimitHex, estimatedGasHex, cb) {
-    txMeta.estimatedGas = estimatedGasHex
-    const txParams = txMeta.txParams
-
-    // if gasLimit was specified and doesnt OOG,
-    // use original specified amount
-    if (txMeta.gasLimitSpecified) {
-      txMeta.estimatedGas = txParams.gas
-      cb()
-      return
-    }
-    // if gasLimit not originally specified,
-    // try adding an additional gas buffer to our estimation for safety
-    const recommendedGasHex = this.addGasBuffer(txMeta.estimatedGas, blockGasLimitHex)
-    txParams.gas = recommendedGasHex
-    cb()
-    return
-  }
-
-  addGasBuffer (initialGasLimitHex, blockGasLimitHex) {
-    const initialGasLimitBn = hexToBn(initialGasLimitHex)
-    const blockGasLimitBn = hexToBn(blockGasLimitHex)
-    const upperGasLimitBn = blockGasLimitBn.muln(0.9)
-    const bufferedGasLimitBn = initialGasLimitBn.muln(1.5)
-
-    // if initialGasLimit is above blockGasLimit, dont modify it
-    if (initialGasLimitBn.gt(upperGasLimitBn)) return bnToHex(initialGasLimitBn)
-    // if bufferedGasLimit is below blockGasLimit, use bufferedGasLimit
-    if (bufferedGasLimitBn.lt(upperGasLimitBn)) return bnToHex(bufferedGasLimitBn)
-    // otherwise use blockGasLimit
-    return bnToHex(upperGasLimitBn)
-  }
-
-  fillInTxParams (txParams, cb) {
-    let fromAddress = txParams.from
-    let reqs = {}
-
-    if (isUndef(txParams.gas)) reqs.gas = (cb) => this.query.estimateGas(txParams, cb)
-    if (isUndef(txParams.gasPrice)) reqs.gasPrice = (cb) => this.query.gasPrice(cb)
-    if (isUndef(txParams.nonce)) reqs.nonce = (cb) => this.query.getTransactionCount(fromAddress, 'pending', cb)
-
-    async.parallel(reqs, function(err, result) {
-      if (err) return cb(err)
-      // write results to txParams obj
-      Object.assign(txParams, result)
-      cb()
-    })
-  }
-
-  // builds ethTx from txParams object
-  buildEthTxFromParams (txParams) {
-    // normalize values
-    txParams.to = normalize(txParams.to)
-    txParams.from = normalize(txParams.from)
-    txParams.value = normalize(txParams.value)
-    txParams.data = normalize(txParams.data)
-    txParams.gas = normalize(txParams.gas || txParams.gasLimit)
-    txParams.gasPrice = normalize(txParams.gasPrice)
-    txParams.nonce = normalize(txParams.nonce)
-    // build ethTx
-    log.info(`Prepared tx for signing: ${JSON.stringify(txParams)}`)
-    const ethTx = new Transaction(txParams)
-    return ethTx
-  }
-
-  publishTransaction (rawTx, cb) {
-    this.query.sendRawTransaction(rawTx, cb)
-  }
-
-  validateTxParams (txParams, cb) {
-    if (('value' in txParams) && txParams.value.indexOf('-') === 0) {
-      cb(new Error(`Invalid transaction value of ${txParams.value} not a positive number.`))
-    } else {
-      cb()
-    }
-  }
-
-
-}
-
-// util
-
-function isUndef(value) {
-  return value === undefined
-}
-
-function bnToHex(inputBn) {
-  return ethUtil.addHexPrefix(inputBn.toString(16))
-}
-
-function hexToBn(inputHex) {
-  return new BN(ethUtil.stripHexPrefix(inputHex), 16)
-}