lightning network support

lib/admin/config.js

@@ -173,6 +173,7 @@ function fetchData () {
       {code: 'coinbase', display: 'Coinbase', class: 'ticker', cryptos: ['BTC', 'ETH', 'LTC', 'BCH']},
       {code: 'mock-ticker', display: 'Mock ticker', class: 'ticker', cryptos: ALL_CRYPTOS},
       {code: 'bitcoind', display: 'bitcoind', class: 'wallet', cryptos: ['BTC']},
+      {code: 'lnd', display: 'Lightning Network', class: 'wallet', cryptos: ['BTC']},
       {code: 'geth', display: 'geth', class: 'wallet', cryptos: ['ETH']},
       {code: 'zcashd', display: 'zcashd', class: 'wallet', cryptos: ['ZEC']},
       {code: 'litecoind', display: 'litecoind', class: 'wallet', cryptos: ['LTC']},

lib/cash-out-tx.js

@@ -216,6 +216,7 @@ function preProcess (oldTx, newTx, pi) {
     .then(newTxHd => {
       return pi.newAddress(newTxHd)
       .then(_.set('toAddress', _, newTxHd))
+      .then(_.unset('isLightning'))
     })
     .then(addressedTx => {
       const rec = {to_address: addressedTx.toAddress}

lib/error.js

@@ -24,3 +24,4 @@ register('NoDataError')
 register('InsufficientFundsError')
 register('StaleTxError')
 register('RatchetError')
+register('NotImplementedError')

lib/plugins.js

@@ -254,7 +254,9 @@ function plugins (settings, deviceId) {
       cryptoCode: tx.cryptoCode,
       label: 'TX ' + Date.now(),
       account: 'deposit',
-      hdIndex: tx.hdIndex
+      hdIndex: tx.hdIndex,
+      cryptoAtoms: tx.cryptoAtoms,
+      isLightning: tx.isLightning
     }
     return wallet.newAddress(settings, info)
   }

lib/plugins/wallet/lnd/lnd.js

@@ -0,0 +1,89 @@
+const lnd = require('lnd-async')
+
+const BN = require('../../../bn')
+const E = require('../../../error')
+const coinUtils = require('../../../coin-utils')
+const options = require('../../../options')
+
+const _ = require('lodash/fp')
+
+const cryptoRec = coinUtils.getCryptoCurrency('BTC')
+const unitScale = cryptoRec.unitScale
+
+module.exports = {
+  balance,
+  sendCoins,
+  newAddress,
+  getStatus,
+  newFunding,
+  cryptoNetwork
+}
+
+function connect () {
+  return lnd.connect(options.lnd || {})
+}
+
+function cryptoNetwork (account, cryptoCode) {
+  return Promise.resolve('test')
+}
+
+function checkCryptoCode (cryptoCode) {
+  if (cryptoCode !== 'BTC') return Promise.reject(new Error('Unsupported crypto: ' + cryptoCode))
+  return Promise.resolve()
+}
+
+function balance (acount, cryptoCode) {
+  return checkCryptoCode(cryptoCode)
+  .then(connect)
+  .then(c => c.channelBalance({}))
+  .then(_.get('balance'))
+  .then(BN)
+  .then(r => r.shift(unitScale).round())
+}
+
+function sendCoins (account, address, cryptoAtoms, cryptoCode) {
+  // Not implemented yet
+  return Promise.reject(new E.NotImplementedError())
+}
+
+function newFunding (account, cryptoCode) {
+  // Not implemented yet
+  return Promise.reject(new E.NotImplementedError())
+}
+
+function newAddress (account, info) {
+  return checkCryptoCode(info.cryptoCode)
+  .then(connect)
+  .then(c => {
+    if (info.isLightning) {
+      return c.addInvoice({memo: 'Lamassu cryptomat deposit', value: info.cryptoAtoms.toNumber()})
+      .then(r => `${r.r_hash.toString('hex')}:${r.payment_request}`)
+    }
+
+    return c.newAddress({type: 2})
+    .then(_.get('address'))
+  })
+}
+
+function getStatus (account, toAddress, requested, cryptoCode) {
+  return checkCryptoCode(cryptoCode)
+  .then(() => {
+    const parts = _.split(':', toAddress)
+    const isLightning = _.size(parts) === 2
+    const rHashStr = isLightning && _.head(parts)
+
+    return connect()
+    .then(c => {
+      if (isLightning) {
+        return c.lookupInvoice({r_hash_str: rHashStr})
+        .then(r => {
+          if (r.settled) return {status: 'confirmed'}
+          return {status: 'notSeen'}
+        })
+      }
+
+      // Note: this must be handled outside of lnd
+      return {status: 'notSeen'}
+    })
+  })
+}

package.json

@@ -12,6 +12,8 @@
     "bignumber.js": "^4.0.2",
     "bip39": "^2.3.1",
     "bitcoind-rpc": "^0.7.0",
+    "bitcore-lib": "^0.15.0",
+    "bitcore-lib-cash": "git+https://github.com/bitpay/bitcore-lib.git#cash",
     "bitgo": "3.4.11",
     "body-parser": "^1.15.1",
     "coinbase": "^2.0.6",
@@ -27,6 +29,7 @@
     "helmet": "^3.8.1",
     "inquirer": "^3.2.1",
     "kraken-api": "github:DeX3/npm-kraken-api",
+    "lnd-async": "^1.0.1",
     "lodash": "^4.17.2",
     "make-dir": "^1.0.0",
     "mem": "^1.1.0",
@@ -50,9 +53,7 @@
     "uuid": "^3.1.0",
     "web3": "^0.19.1",
     "winston": "^2.3.0",
-    "ws": "^3.1.0",
-    "bitcore-lib": "^0.15.0",
-    "bitcore-lib-cash": "git+https://github.com/bitpay/bitcore-lib.git#cash"
+    "ws": "^3.1.0"
   },
   "repository": {
     "type": "git",