http: expose chain resetting.

bin/cli

@@ -357,14 +357,25 @@ CLI.prototype.retoken = co(function* retoken() {
 });
 
 CLI.prototype.rescan = co(function* rescan() {
+  var height = this.argv[0];
+
+  if (!utils.isUInt32(height))
+    height = null;
+
+  yield this.client.rescan(height);
+
+  this.log('Rescanning...');
+});
+
+CLI.prototype.reset = co(function* reset() {
   var hash = this.argv[0];
 
   if (hash.length !== 64)
     hash = +hash;
 
-  yield this.client.rescan(hash);
+  yield this.client.reset(hash);
 
-  this.log('Rescanning...');
+  this.log('Chain has been reset.');
 });
 
 CLI.prototype.resend = co(function* resend() {
@@ -595,6 +606,8 @@ CLI.prototype.handleNode = co(function* handleNode() {
       return yield this.getBlock();
     case 'rescan':
       return yield this.rescan();
+    case 'reset':
+      return yield this.reset();
     case 'resend':
       return yield this.resend();
     case 'backup':
@@ -611,7 +624,8 @@ CLI.prototype.handleNode = co(function* handleNode() {
       this.log('  $ tx [hash/address]: View transactions.');
       this.log('  $ coin [hash+index/address]: View coins.');
       this.log('  $ block [hash/height]: View block.');
-      this.log('  $ rescan [height/hash]: Rescan for transactions.');
+      this.log('  $ rescan [height]: Rescan for transactions.');
+      this.log('  $ reset [height/hash]: Reset chain to desired block.');
       this.log('  $ resend: Resend pending transactions.');
       this.log('  $ backup [path]: Backup the wallet db.');
       this.log('  $ rpc [command] [args]: Execute RPC command.');

lib/http/client.js

@@ -366,13 +366,24 @@ HTTPClient.prototype.broadcast = function broadcast(tx) {
 
 /**
  * Rescan the chain.
+ * @param {Number} height
+ * @returns {Promise}
+ */
+
+HTTPClient.prototype.rescan = function rescan(height) {
+  var options = { height: height };
+  return this._post('/rescan', options);
+};
+
+/**
+ * Reset the chain.
  * @param {Hash|Number} hash
  * @returns {Promise}
  */
 
-HTTPClient.prototype.rescan = function rescan(hash) {
+HTTPClient.prototype.reset = function reset(hash) {
   var options = { hash: hash };
-  return this._post('/rescan', options);
+  return this._post('/reset', options);
 };
 
 /**

lib/http/server.js

@@ -731,6 +731,18 @@ HTTPServer.prototype._init = function _init() {
     send(200, { rate: utils.btc(fee) });
   });
 
+  // Reset chain
+  this.post('/reset', con(function* (req, res, send, next) {
+    var options = req.options;
+    var hash = options.hash || options.height;
+
+    enforce(hash != null, 'Hash or height is required.');
+
+    yield this.chain.reset(hash);
+
+    send(200, { success: true });
+  }));
+
   // Rescan
   this.post('/rescan', con(function* (req, res, send, next) {
     var options = req.options;