bch, btg support

package.json

@@ -30,6 +30,8 @@
     "arch": "^2.1.0",
     "bip39": "^2.4.0",
     "bitcoinjs-lib": "^3.2.0",
+    "bitcoinjs-lib-bch": "git://github.com/bitcoinjs/bitcoinjs-lib#opt-in-bitcoincash-sighash",
+    "bitcoinjs-lib-zcash": "git://github.com/karel-3d/bitcoinjs-lib#zcash",
     "bluebird": "^3.4.7",
     "body-parser": "^1.15.2",
     "buffer-reverse": "^1.0.1",

routes/electrumjs/electrumServers.js

@@ -286,7 +286,7 @@ let electrumServers = {
       'electrum1.cipig.net:10000',
       'electrum2.cipig.net:10000'
     ],
-  },
+  },*/
   btg: {
     address: '173.212.225.176',
     port: 10052,
@@ -320,7 +320,7 @@ let electrumServers = {
       'electrum2.cipig.net:10050'
     ],
   },
-  /*bch: {
+  bch: {
     address: 'electrum1.cipig.net',
     port: 10051,
     proto: 'tcp',
@@ -330,7 +330,7 @@ let electrumServers = {
       'electrum1.cipig.net:10051',
       'electrum2.cipig.net:10051'
     ],
-  },*/
+  },
   argentum: { // !estimatefee
     address: '173.212.225.176',
     port: 50081,

routes/shepherd/electrum/createtx.js

@@ -1,7 +1,17 @@
+const bitcoinJSForks = require('bitcoinforksjs-lib');
+
 module.exports = (shepherd) => {
   // unsigned tx
   shepherd.buildUnsignedTx = (sendTo, changeAddress, network, utxo, changeValue, spendValue) => {
-    let tx = new shepherd.bitcoinJS.TransactionBuilder(shepherd.getNetworkData(network));
+    let tx;
+
+    if (network === 'btg') {
+      shepherd.log('enable btg');
+      tx = new bitcoinJSForks.TransactionBuilder(shepherd.getNetworkData(network));
+      tx.enableBitcoinGold(true);
+    } else {
+      tx = new shepherd.bitcoinJS.TransactionBuilder(shepherd.getNetworkData(network));
+    }
 
     shepherd.log('buildSignedTx');
     // console.log(`buildSignedTx priv key ${wif}`);
@@ -86,6 +96,60 @@ module.exports = (shepherd) => {
     return rawtx;
   }
 
+  // btg
+  shepherd.buildSignedTxForks = (sendTo, changeAddress, wif, network, utxo, changeValue, spendValue) => {
+    let tx;
+
+    if (network === 'btg' ||
+        network === 'bch') {
+      tx = new bitcoinJSForks.TransactionBuilder(shepherd.getNetworkData(network));
+    }
+
+    const keyPair = bitcoinJSForks.ECPair.fromWIF(wif, shepherd.getNetworkData(network));
+    const pk = bitcoinJSForks.crypto.hash160(keyPair.getPublicKeyBuffer());
+    const spk = bitcoinJSForks.script.pubKeyHash.output.encode(pk);
+
+    shepherd.log(`buildSignedTx${network.toUpperCase()}`);
+
+    for (let i = 0; i < utxo.length; i++) {
+      tx.addInput(utxo[i].txid, utxo[i].vout, bitcoinJSForks.Transaction.DEFAULT_SEQUENCE, spk);
+    }
+
+    tx.addOutput(sendTo, Number(spendValue));
+
+    if (changeValue > 0) {
+      tx.addOutput(changeAddress, Number(changeValue));
+    }
+
+    if (network === 'btg') {
+      tx.enableBitcoinGold(true);
+    } else if (network === 'bch') {
+      tx.enableBitcoinCash(true);
+    }
+
+    tx.setVersion(2);
+
+    shepherd.log('buildSignedTx unsigned tx data vin', true);
+    shepherd.log(tx.tx.ins, true);
+    shepherd.log('buildSignedTx unsigned tx data vout', true);
+    shepherd.log(tx.tx.outs, true);
+    shepherd.log('buildSignedTx unsigned tx data', true);
+    shepherd.log(tx, true);
+
+    const hashType = bitcoinJSForks.Transaction.SIGHASH_ALL | bitcoinJSForks.Transaction.SIGHASH_BITCOINCASHBIP143;
+
+    for (let i = 0; i < utxo.length; i++) {
+      tx.sign(i, keyPair, null, hashType, utxo[i].value);
+    }
+
+    const rawtx = tx.build().toHex();
+
+    shepherd.log('buildSignedTx signed tx hex', true);
+    shepherd.log(rawtx, true);
+
+    return rawtx;
+  }
+
   shepherd.maxSpendBalance = (utxoList, fee) => {
     let maxSpendBalance = 0;
 
@@ -101,7 +165,7 @@ module.exports = (shepherd) => {
   }
 
   shepherd.get('/electrum/createrawtx', (req, res, next) => {
-    // txid 64 char
+    // TODO: unconf output(s) error message
     const network = req.query.network || shepherd.findNetworkObj(req.query.coin);
     const ecl = new shepherd.electrumJSCore(shepherd.electrumServers[network].port, shepherd.electrumServers[network].address, shepherd.electrumServers[network].proto); // tcp or tls
     const outputAddress = req.query.address;
@@ -123,7 +187,9 @@ module.exports = (shepherd) => {
       ecl.close();
 
       if (utxoList &&
-          utxoList.length) {
+          utxoList.length &&
+          utxoList[0] &&
+          utxoList[0].txid) {
         let utxoListFormatted = [];
         let totalInterest = 0;
         let totalInterestUTXOCount = 0;
@@ -315,6 +381,18 @@ module.exports = (shepherd) => {
                 _change,
                 value
               );
+            } else {
+              if (network === 'btg' ||
+                  network === 'bch') {
+                _rawtx = shepherd.buildSignedTxForks(
+                  outputAddress,
+                  changeAddress,
+                  wif,
+                  network,
+                  inputs,
+                  _change,
+                  value
+                );
               } else {
                 _rawtx = shepherd.buildSignedTx(
                   outputAddress,
@@ -326,6 +404,7 @@ module.exports = (shepherd) => {
                   value
                 );
               }
+            }
 
             if (!push ||
                 push === 'false') {