Support 'explorer_getTransactions' RPC call

Based on MetaMask/web3-provider-engine#49

lib/blockchain.js

@@ -264,10 +264,7 @@ Blockchain.prototype.getTransactionReceipt = function(hash) {
   }
 }
 
-Blockchain.prototype.getTransactionByHash = function(hash) {
-  var result = this.transactions[hash];
-
-  if (result !== undefined) {
+Blockchain.prototype.formatTransaction = function(hash, result) {
     var tx = result.tx;
 
     return {
@@ -283,12 +280,37 @@ Blockchain.prototype.getTransactionByHash = function(hash) {
       gasPrice: this.toHex(tx.gasPrice),
       input: this.toHex(tx.data),
     };
+}
+
+Blockchain.prototype.getTransactionByHash = function(hash) {
+  var result = this.transactions[hash];
+
+  if (result !== undefined) {
+    return this.formatTransaction(hash, result)
   }
   else {
     return null;
   }
 }
 
+Blockchain.prototype.getTransactions = function(address) {
+  var results = [];
+
+  var self = this;
+  Object.keys(this.transactions).forEach(function (hash) {
+    var tx = self.transactions[hash].tx;
+    if ((self.toHex(tx.getSenderAddress()) === address) ||
+        (self.toHex(tx.to) === address)) {
+      var result = self.formatTransaction(hash, self.transactions[hash]);
+      result.gasUsed = self.transactions[hash].gasUsed;
+      result.timestamp = parseInt(self.transactions[hash].block.header.timestamp.toString('hex'), 16);
+      results.push(result);
+    }
+  });
+
+  return results;
+}
+
 Blockchain.prototype.queueTransaction = function(tx_params, callback) {
   this.queueAction("eth_sendTransaction", tx_params, callback);
 };

lib/manager.js

@@ -193,4 +193,8 @@ Manager.prototype.evm_revert = function(snapshot_id, callback) {
   callback(null, this.blockchain.revert(snapshot_id));
 };
 
+Manager.prototype.explorer_getTransactions = function(address, callback) {
+  callback(null, this.blockchain.getTransactions(address));
+};
+
 module.exports = Manager;