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bitcoind-regtest

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Run bitcoind in regtest mode for your own blockchain

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'use strict';

var _get = require('babel-runtime/helpers/get')['default'];

var _inherits = require('babel-runtime/helpers/inherits')['default'];

var _createDecoratedClass = require('babel-runtime/helpers/create-decorated-class')['default'];

var _classCallCheck = require('babel-runtime/helpers/class-call-check')['default'];

var _slicedToArray = require('babel-runtime/helpers/sliced-to-array')['default'];

var _regeneratorRuntime = require('babel-runtime/regenerator')['default'];

var _Promise = require('babel-runtime/core-js/promise')['default'];

var _getIterator = require('babel-runtime/core-js/get-iterator')['default'];

var _interopRequireDefault = require('babel-runtime/helpers/interop-require-default')['default'];

Object.defineProperty(exports, '__esModule', {
  value: true
});

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _events = require('events');

var _coreDecorators = require('core-decorators');

var _readyMixin = require('ready-mixin');

var _readyMixin2 = _interopRequireDefault(_readyMixin);

var _tmp = require('tmp');

var _tmp2 = _interopRequireDefault(_tmp);

var _rimraf2 = require('rimraf');

var _rimraf3 = _interopRequireDefault(_rimraf2);

var _crypto = require('crypto');

var _crypto2 = _interopRequireDefault(_crypto);

var _child_process = require('child_process');

var _bitcoreLib = require('bitcore-lib');

var _bitcoreLib2 = _interopRequireDefault(_bitcoreLib);

var _bitcoreP2p = require('bitcore-p2p');

var _bitcoreP2p2 = _interopRequireDefault(_bitcoreP2p);

var _bitcoindRpcClient = require('bitcoind-rpc-client');

var _bitcoindRpcClient2 = _interopRequireDefault(_bitcoindRpcClient);

var _makeConcurrent = require('make-concurrent');

var _makeConcurrent2 = _interopRequireDefault(_makeConcurrent);

var _promiseUsefulUtils = require('promise-useful-utils');

var _promiseUsefulUtils2 = _interopRequireDefault(_promiseUsefulUtils);

var _wallet = require('./wallet');

var _wallet2 = _interopRequireDefault(_wallet);

var tmpfs = _promiseUsefulUtils2['default'].promisifyAll(_tmp2['default']);
var rimraf = _promiseUsefulUtils2['default'].promisify(_rimraf3['default']);

var encode = function encode(s) {
  return Array.prototype.reverse.call(new Buffer(s)).toString('hex');
};

/**
 * @event Bitcoind#error
 * @param {Error} err
 */

/**
 * @event Bitcoind#data
 * @param {string} data
 */

/**
 * @event Bitcoind#exit
 * @param {number} code
 * @param {string} signal
 */

/**
 * @event Bitcoind#block
 * @param {string} hash
 */

/**
 * @event Bitcoind#tx
 * @param {string} txid
 */

/**
 * @class Bitcoind
 */

var Bitcoind = (function (_EventEmitter) {
  _inherits(Bitcoind, _EventEmitter);

  /**
   * @constructor
   * @param {Object} [opts]
   * @param {Object} [opts.wallet] Wallet options
   * @param {function} [opts.wallet.preloadsPoolSize=_.constant(10)] Preload pool size
   * @param {function} [opts.wallet.keysPoolSize=() => _.random(80, 100)]
   * @param {function} [opts.wallet.newKeyTimeout=() => _.random(60, 90) * 1000]
   * @param {function} [opts.wallet.inputsCount=() => _.random(2, 3)]
   * @param {function} [opts.wallet.outputsCount=() => _.random(3, 5)]
   * @param {Object} [opts.generate] Generate options
   * @param {Object} [opts.generate.txs]
   * @param {function} [opts.generate.txs.background=_.constant(true)]
   * @param {function} [opts.generate.txs.timeout=() => _.random(6, 9, true) * 1000]
   * @param {function} [opts.generate.txs.minInBlock=_.constant(5)]
   * @param {Object} [opts.generate.blocks]
   * @param {function} [opts.generate.blocks.background=_.constant(true)]
   * @param {function} [opts.generate.blocks.timeout=() => _.random(60, 90, true) * 1000]
   * @param {Object} [opts.bitcoind]
   * @param {function} [opts.bitcoind.path=() => '../bitcoind/bitcoind-rev-3224936']
   * @param {function} [opts.bitcoind.datadir=async () => _.first(tmpfs.dir({prefix: 'bitcoind-regtest-'}))]
   * @param {function} [opts.bitcoind.port=() => _.random(20000, 30000)]
   * @param {function} [opts.bitcoind.rpcport=() => _.random(20000, 30000)]
   * @param {function} [opts.bitcoind.rpcuser=() => crypto.randomBytes(10).toString('hex')]
   * @param {function} [opts.bitcoind.rpcpassword=() => crypto.randomBytes(10).toString('hex')]
   */

  function Bitcoind(opts) {
    var _this2 = this;

    _classCallCheck(this, _Bitcoind);

    _get(Object.getPrototypeOf(_Bitcoind.prototype), 'constructor', this).call(this);

    _promiseUsefulUtils2['default']['try'](function callee$2$0() {
      var onErrorExit;
      return _regeneratorRuntime.async(function callee$2$0$(context$3$0) {
        var _this = this;

        while (1) switch (context$3$0.prev = context$3$0.next) {
          case 0:
            this._opts = _lodash2['default'].defaultsDeep(_lodash2['default'].cloneDeep(opts) || {}, {
              wallet: {
                preloadsPoolSize: _lodash2['default'].constant(10),
                keysPoolSize: function keysPoolSize() {
                  return _lodash2['default'].random(80, 100);
                },
                newKeyTimeout: function newKeyTimeout() {
                  return _lodash2['default'].random(60, 90) * 1000;
                },
                inputsCount: function inputsCount() {
                  return _lodash2['default'].random(2, 2);
                },
                outputsCount: function outputsCount() {
                  return _lodash2['default'].random(3, 5);
                }
              },
              generate: {
                txs: {
                  background: _lodash2['default'].constant(true),
                  timeout: function timeout() {
                    return _lodash2['default'].random(6, 9, true) * 1000;
                  },
                  minInBlock: _lodash2['default'].constant(5)
                },
                blocks: {
                  background: _lodash2['default'].constant(true),
                  timeout: function timeout() {
                    return _lodash2['default'].random(60, 90, true) * 1000;
                  }
                }
              },
              bitcoind: {
                path: function path() {
                  return '../bitcoind/bitcoind-rev-3224936';
                },
                datadir: function datadir() {
                  return _regeneratorRuntime.async(function datadir$(context$4$0) {
                    while (1) switch (context$4$0.prev = context$4$0.next) {
                      case 0:
                        context$4$0.t0 = _lodash2['default'];
                        context$4$0.next = 3;
                        return _regeneratorRuntime.awrap(tmpfs.dirAsync({
                          prefix: 'bitcoind-regtest-',
                          keep: false,
                          unsafeCleanup: true
                        }));

                      case 3:
                        context$4$0.t1 = context$4$0.sent;
                        return context$4$0.abrupt('return', context$4$0.t0.first.call(context$4$0.t0, context$4$0.t1));

                      case 5:
                      case 'end':
                        return context$4$0.stop();
                    }
                  }, null, _this);
                },
                port: function port() {
                  return _lodash2['default'].random(20000, 30000);
                },
                rpcport: function rpcport() {
                  return _lodash2['default'].random(20000, 30000);
                },
                rpcuser: function rpcuser() {
                  return _crypto2['default'].randomBytes(10).toString('hex');
                },
                rpcpassword: function rpcpassword() {
                  return _crypto2['default'].randomBytes(10).toString('hex');
                }
              }
            });

            // process options
            context$3$0.t0 = this._opts.bitcoind.path();
            context$3$0.next = 4;
            return _regeneratorRuntime.awrap(this._opts.bitcoind.datadir());

          case 4:
            context$3$0.t1 = context$3$0.sent;
            context$3$0.t2 = this._opts.bitcoind.port();
            context$3$0.t3 = this._opts.bitcoind.rpcport();
            context$3$0.t4 = this._opts.bitcoind.rpcuser();
            context$3$0.t5 = this._opts.bitcoind.rpcpassword();
            this._processOpts = {
              path: context$3$0.t0,
              datadir: context$3$0.t1,
              port: context$3$0.t2,
              rpcport: context$3$0.t3,
              rpcuser: context$3$0.t4,
              rpcpassword: context$3$0.t5
            };

            // init bitcoind process
            this._process = (0, _child_process.spawn)(this._opts.bitcoind.path(), ['-regtest', '-txindex=1', '-server', '-datadir=' + this._processOpts.datadir, '-port=' + this._processOpts.port, '-rpcport=' + this._processOpts.rpcport, '-rpcuser=' + this._processOpts.rpcuser, '-rpcpassword=' + this._processOpts.rpcpassword, '-printtoconsole'], {
              cwd: __dirname,
              stdio: ['ignore', 'pipe', 'pipe']
            });
            this._process.on('error', function (err) {
              _this.emit('error', err);
            });
            this._process.on('exit', function (code, signal) {
              _this.emit('exit', code, signal);
            });
            this._process.stdout.on('error', function (err) {
              _this.emit('error', err);
            });
            this._process.stdout.on('data', function (data) {
              _this.emit('data', data);
            });
            this._process.stderr.on('error', function (err) {
              _this.emit('error', err);
            });
            this._process.stderr.on('data', function (data) {
              _this.emit('data', data);
            });

            // await running bitcoind
            onErrorExit = undefined;
            context$3$0.prev = 18;
            context$3$0.next = 21;
            return _regeneratorRuntime.awrap(new _Promise(function (resolve, reject) {
              setTimeout(resolve, 1000);

              onErrorExit = function (code, signal) {
                if (code instanceof Error && signal === undefined) {
                  reject(code);
                }

                reject(new Error('Exit with code = ' + code + ' on signal = ' + signal));
              };

              _this._process.on('error', onErrorExit);
              _this._process.on('exit', onErrorExit);
            }));

          case 21:
            context$3$0.prev = 21;

            this._process.removeListener('error', onErrorExit);
            this._process.removeListener('exit', onErrorExit);
            return context$3$0.finish(21);

          case 25:

            // initialize peer
            this._peer = new _bitcoreP2p2['default'].Peer({
              host: '127.0.0.1',
              port: this._processOpts.port,
              network: _bitcoreLib2['default'].Networks.get('regtest')
            });

            this._peer.on('inv', function (message) {
              var names = [];

              var _iteratorNormalCompletion = true;
              var _didIteratorError = false;
              var _iteratorError = undefined;

              try {
                for (var _iterator = _getIterator(message.inventory), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
                  var inv = _step.value;

                  // store inv type name
                  names.push(_bitcoreP2p2['default'].Inventory.TYPE_NAME[inv.type]);

                  // store inv if tx type
                  if (inv.type === _bitcoreP2p2['default'].Inventory.TYPE.TX) {
                    _this.emit('tx', encode(inv.hash));
                  }

                  // emit block if block type
                  if (inv.type === _bitcoreP2p2['default'].Inventory.TYPE.BLOCK) {
                    _this.emit('block', encode(inv.hash));
                  }
                }
              } catch (err) {
                _didIteratorError = true;
                _iteratorError = err;
              } finally {
                try {
                  if (!_iteratorNormalCompletion && _iterator['return']) {
                    _iterator['return']();
                  }
                } finally {
                  if (_didIteratorError) {
                    throw _iteratorError;
                  }
                }
              }
            });

            context$3$0.next = 29;
            return _regeneratorRuntime.awrap(new _Promise(function (resolve) {
              _this._peer.once('ready', resolve);
              _this._peer.connect();
            }));

          case 29:

            // wait wallet initialization
            this._wallet = new _wallet2['default'](this);
            this._wallet.on('error', this.emit.bind(this, 'error'));
            context$3$0.next = 33;
            return _regeneratorRuntime.awrap(this._wallet.ready);

          case 33:
          case 'end':
            return context$3$0.stop();
        }
      }, null, _this2, [[18,, 21, 25]]);
    }).then(function () {
      _this2._ready(null);
    }, function (err) {
      _this2._ready(err);
    });

    // loop for creating new transactions in background
    this.ready.then(function callee$2$0() {
      return _regeneratorRuntime.async(function callee$2$0$(context$3$0) {
        while (1) switch (context$3$0.prev = context$3$0.next) {
          case 0:
            if (!true) {
              context$3$0.next = 14;
              break;
            }

            context$3$0.prev = 1;
            context$3$0.next = 4;
            return _regeneratorRuntime.awrap(_promiseUsefulUtils2['default'].delay(this._opts.generate.txs.timeout()));

          case 4:
            if (!this._opts.generate.txs.background()) {
              context$3$0.next = 7;
              break;
            }

            context$3$0.next = 7;
            return _regeneratorRuntime.awrap(this.generateTxs(1));

          case 7:
            context$3$0.next = 12;
            break;

          case 9:
            context$3$0.prev = 9;
            context$3$0.t0 = context$3$0['catch'](1);

            this.emit(context$3$0.t0);

          case 12:
            context$3$0.next = 0;
            break;

          case 14:
          case 'end':
            return context$3$0.stop();
        }
      }, null, _this2, [[1, 9]]);
    });

    // loop for creating new blocks in background
    this.ready.then(function callee$2$0() {
      return _regeneratorRuntime.async(function callee$2$0$(context$3$0) {
        while (1) switch (context$3$0.prev = context$3$0.next) {
          case 0:
            if (!true) {
              context$3$0.next = 14;
              break;
            }

            context$3$0.prev = 1;
            context$3$0.next = 4;
            return _regeneratorRuntime.awrap(_promiseUsefulUtils2['default'].delay(this._opts.generate.blocks.timeout()));

          case 4:
            if (!this._opts.generate.blocks.background()) {
              context$3$0.next = 7;
              break;
            }

            context$3$0.next = 7;
            return _regeneratorRuntime.awrap(this.generateBlocks(1));

          case 7:
            context$3$0.next = 12;
            break;

          case 9:
            context$3$0.prev = 9;
            context$3$0.t0 = context$3$0['catch'](1);

            this.emit(context$3$0.t0);

          case 12:
            context$3$0.next = 0;
            break;

          case 14:
          case 'end':
            return context$3$0.stop();
        }
      }, null, _this2, [[1, 9]]);
    });
  }

  /**
   * Return value for given option `name`
   * @param {string} name
   * @return {*}
   */

  _createDecoratedClass(Bitcoind, [{
    key: 'getOption',
    value: function getOption(name) {
      return _lodash2['default'].get(this._opts, name);
    }

    /**
     * @param {string} name
     * @param {*}
     */
  }, {
    key: 'setOption',
    value: function setOption(name, value) {
      _lodash2['default'].set(this._opts, name, value);
    }

    /**
     * Return instance of `RpcClient`
     * @return {RpcClient}
     */
  }, {
    key: 'getRpcClient',
    value: function getRpcClient() {
      return new _bitcoindRpcClient2['default']({
        host: '127.0.0.1',
        port: this._processOpts.rpcport,
        user: this._processOpts.rpcuser,
        pass: this._processOpts.rpcpassword
      });
    }

    /**
     * Same as func getRpcClient
     */
  }, {
    key: 'withLock',
    decorators: [(0, _makeConcurrent2['default'])({ concurrency: 1 })],
    value: function withLock(fn) {
      return fn();
    }

    /**
     * Generate `count` blocks
     * @param {number} count
     * @return {Promise.<Array.<string>>}
     */
  }, {
    key: 'generateBlocks',
    decorators: [(0, _makeConcurrent2['default'])({ concurrency: 1 })],
    value: function generateBlocks(count) {
      var hashes, requiredMemPoolSize, memPoolSize;
      return _regeneratorRuntime.async(function generateBlocks$(context$2$0) {
        var _this3 = this;

        while (1) switch (context$2$0.prev = context$2$0.next) {
          case 0:
            context$2$0.next = 2;
            return _regeneratorRuntime.awrap(this.ready);

          case 2:
            hashes = [];

          case 3:
            if (!(count > 0)) {
              context$2$0.next = 15;
              break;
            }

            requiredMemPoolSize = this._opts.generate.txs.minInBlock();
            context$2$0.next = 7;
            return _regeneratorRuntime.awrap(this.rpc.getMemPoolInfo());

          case 7:
            memPoolSize = context$2$0.sent.result.size;
            context$2$0.next = 10;
            return _regeneratorRuntime.awrap(this.generateTxs(requiredMemPoolSize - memPoolSize));

          case 10:
            context$2$0.next = 12;
            return _regeneratorRuntime.awrap(this.withLock(function callee$2$0() {
              var ret;
              return _regeneratorRuntime.async(function callee$2$0$(context$3$0) {
                while (1) switch (context$3$0.prev = context$3$0.next) {
                  case 0:
                    context$3$0.next = 2;
                    return _regeneratorRuntime.awrap(this.rpc.generate(1));

                  case 2:
                    ret = context$3$0.sent;

                    hashes.push(ret.result[0]);

                  case 4:
                  case 'end':
                    return context$3$0.stop();
                }
              }, null, _this3);
            }));

          case 12:
            count -= 1;
            context$2$0.next = 3;
            break;

          case 15:
            return context$2$0.abrupt('return', hashes);

          case 16:
          case 'end':
            return context$2$0.stop();
        }
      }, null, this);
    }

    /**
     * Generate `count` transactions
     * @param {number} count
     * @return {Promise.<Array.<?string>>}
     */
  }, {
    key: 'generateTxs',
    value: function generateTxs(count) {
      return _regeneratorRuntime.async(function generateTxs$(context$2$0) {
        var _this4 = this;

        while (1) switch (context$2$0.prev = context$2$0.next) {
          case 0:
            context$2$0.next = 2;
            return _regeneratorRuntime.awrap(this.ready);

          case 2:
            context$2$0.next = 4;
            return _regeneratorRuntime.awrap(_Promise.all(_lodash2['default'].times(count).map(function () {
              return _this4._wallet.generateTx();
            })));

          case 4:
            return context$2$0.abrupt('return', context$2$0.sent);

          case 5:
          case 'end':
            return context$2$0.stop();
        }
      }, null, this);
    }

    /**
     * @typedef {Object} Bitcoind~PreloadObject
     * @property {string} txId
     * @property {number} outIndex
     * @property {number} value
     * @property {bitcore.Script} script
     * @property {bitcore.PrivateKey} privKey
     */

    /**
     * Return Object with utxo data and with private key (balance is 10btc)
     * @return {Promise.<Bitcoind~PreloadObject>}
     */
  }, {
    key: 'getPreload',
    value: function getPreload() {
      return _regeneratorRuntime.async(function getPreload$(context$2$0) {
        while (1) switch (context$2$0.prev = context$2$0.next) {
          case 0:
            context$2$0.next = 2;
            return _regeneratorRuntime.awrap(this.ready);

          case 2:
            context$2$0.next = 4;
            return _regeneratorRuntime.awrap(this._wallet.getPreload());

          case 4:
            return context$2$0.abrupt('return', context$2$0.sent);

          case 5:
          case 'end':
            return context$2$0.stop();
        }
      }, null, this);
    }

    /**
     * Return instance of `Bitcoind` that have same blockchain
     * @param {Object} [opts]
     * @param {boolean} [opts.connected=true]
     * @return {Promise.<Bitcoind>}
     */
  }, {
    key: 'fork',
    value: function fork(opts) {
      var bopts, other, _ref, _ref2, mhash, ohash;

      return _regeneratorRuntime.async(function fork$(context$2$0) {
        while (1) switch (context$2$0.prev = context$2$0.next) {
          case 0:
            bopts = _lodash2['default'].cloneDeep(this._opts);

            bopts.generate.txs.background = _lodash2['default'].constant(false);
            bopts.generate.blocks.background = _lodash2['default'].constant(false);
            other = new Bitcoind(bopts);
            context$2$0.next = 6;
            return _regeneratorRuntime.awrap(other.ready);

          case 6:
            context$2$0.next = 8;
            return _regeneratorRuntime.awrap(this.connect(other));

          case 8:
            context$2$0.next = 10;
            return _regeneratorRuntime.awrap(this.rpc.getBlockCount());

          case 10:
            context$2$0.t0 = context$2$0.sent.result;

            if (!(context$2$0.t0 > 0)) {
              context$2$0.next = 27;
              break;
            }

            context$2$0.next = 14;
            return _regeneratorRuntime.awrap(other.generateBlocks(1));

          case 14:
            if (!true) {
              context$2$0.next = 27;
              break;
            }

            context$2$0.next = 17;
            return _regeneratorRuntime.awrap(_Promise.all([this.rpc.getBestBlockHash(), other.rpc.getBestBlockHash()]));

          case 17:
            _ref = context$2$0.sent;
            _ref2 = _slicedToArray(_ref, 2);
            mhash = _ref2[0];
            ohash = _ref2[1];

            if (!(mhash.result === ohash.result)) {
              context$2$0.next = 23;
              break;
            }

            return context$2$0.abrupt('break', 27);

          case 23:
            context$2$0.next = 25;
            return _regeneratorRuntime.awrap(_promiseUsefulUtils2['default'].delay(500));

          case 25:
            context$2$0.next = 14;
            break;

          case 27:

            other.setOption('generate.txs.background', this._opts.generate.txs.background);
            other.setOption('generate.blocks.background', this._opts.generate.blocks.background);

            if (Object(opts).connected) {
              context$2$0.next = 32;
              break;
            }

            context$2$0.next = 32;
            return _regeneratorRuntime.awrap(this.disconnect(other));

          case 32:
            return context$2$0.abrupt('return', other);

          case 33:
          case 'end':
            return context$2$0.stop();
        }
      }, null, this);
    }

    /**
     * @param {Bitcoind}
     * @return {Promise}
     */
  }, {
    key: 'connect',
    value: function connect(other) {
      var node;
      return _regeneratorRuntime.async(function connect$(context$2$0) {
        while (1) switch (context$2$0.prev = context$2$0.next) {
          case 0:
            node = '127.0.0.1:' + other._processOpts.port;
            context$2$0.next = 3;
            return _regeneratorRuntime.awrap(this.rpc.addNode(node, 'onetry'));

          case 3:
          case 'end':
            return context$2$0.stop();
        }
      }, null, this);
    }

    /**
     * @param {Bitcoind}
     * @return {Promise}
     */
  }, {
    key: 'disconnect',
    value: function disconnect(other) {
      var node;
      return _regeneratorRuntime.async(function disconnect$(context$2$0) {
        while (1) switch (context$2$0.prev = context$2$0.next) {
          case 0:
            node = '127.0.0.1:' + other._processOpts.port;
            context$2$0.next = 3;
            return _regeneratorRuntime.awrap(this.rpc.disconnectNode(node));

          case 3:
          case 'end':
            return context$2$0.stop();
        }
      }, null, this);
    }

    /**
     * @return {Promise}
     */
  }, {
    key: 'terminate',
    decorators: [(0, _makeConcurrent2['default'])({ concurrency: 1 })],
    value: function terminate() {
      var onError, onExit;
      return _regeneratorRuntime.async(function terminate$(context$2$0) {
        var _this5 = this;

        while (1) switch (context$2$0.prev = context$2$0.next) {
          case 0:
            onError = undefined;
            onExit = undefined;

            if (!(this._process === null)) {
              context$2$0.next = 4;
              break;
            }

            throw new Error('Child process already terminated');

          case 4:
            context$2$0.prev = 4;
            context$2$0.next = 7;
            return _regeneratorRuntime.awrap(new _Promise(function (resolve, reject) {
              onError = reject;
              onExit = function callee$3$0(code, signal) {
                return _regeneratorRuntime.async(function callee$3$0$(context$4$0) {
                  while (1) switch (context$4$0.prev = context$4$0.next) {
                    case 0:
                      if (code === 0 && signal === null) {
                        context$4$0.next = 2;
                        break;
                      }

                      return context$4$0.abrupt('return', reject(new Error('Exit with code = ' + code + ' on signal = ' + signal)));

                    case 2:
                      context$4$0.prev = 2;

                      this._wallet.removeAllListeners();
                      this._peer.removeAllListeners();
                      this._process.removeAllListeners();
                      this._process = null;
                      context$4$0.next = 9;
                      return _regeneratorRuntime.awrap(rimraf(this._processOpts.datadir));

                    case 9:
                      resolve();
                      context$4$0.next = 15;
                      break;

                    case 12:
                      context$4$0.prev = 12;
                      context$4$0.t0 = context$4$0['catch'](2);

                      reject(context$4$0.t0);

                    case 15:
                    case 'end':
                      return context$4$0.stop();
                  }
                }, null, _this5, [[2, 12]]);
              };

              _this5._process.on('error', onError);
              _this5._process.on('exit', onExit);

              _this5._process.kill('SIGTERM');
            }));

          case 7:
            context$2$0.prev = 7;

            if (this._process !== null) {
              this._process.removeListener('error', onError);
              this._process.removeListener('exit', onExit);
            }
            return context$2$0.finish(7);

          case 10:
          case 'end':
            return context$2$0.stop();
        }
      }, null, this, [[4,, 7, 10]]);
    }
  }, {
    key: 'rpc',
    get: function get() {
      return this.getRpcClient();
    }

    /**
     * @param {function} fn
     * @return {Promise}
     */
  }]);

  var _Bitcoind = Bitcoind;
  Bitcoind = (0, _coreDecorators.mixin)(_readyMixin2['default'])(Bitcoind) || Bitcoind;
  return Bitcoind;
})(_events.EventEmitter);

exports['default'] = Bitcoind;
module.exports = exports['default'];
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_ from 'lodash'\nimport { EventEmitter } from 'events'\nimport { mixin } from 'core-decorators'\nimport ReadyMixin from 'ready-mixin'\nimport _tmpfs from 'tmp'\nimport _rimraf from 'rimraf'\nimport crypto from 'crypto'\nimport { spawn } from 'child_process'\nimport bitcore from 'bitcore-lib'\nimport p2p from 'bitcore-p2p'\nimport RpcClient from 'bitcoind-rpc-client'\nimport makeConcurrent from 'make-concurrent'\nimport PUtils from 'promise-useful-utils'\n\nimport Wallet from './wallet'\n\nlet tmpfs = PUtils.promisifyAll(_tmpfs)\nlet rimraf = PUtils.promisify(_rimraf)\n\nlet encode = (s) => {\n  return Array.prototype.reverse.call(new Buffer(s)).toString('hex')\n}\n\n/**\n * @event Bitcoind#error\n * @param {Error} err\n */\n\n/**\n * @event Bitcoind#data\n * @param {string} data\n */\n\n/**\n * @event Bitcoind#exit\n * @param {number} code\n * @param {string} signal\n */\n\n/**\n * @event Bitcoind#block\n * @param {string} hash\n */\n\n/**\n * @event Bitcoind#tx\n * @param {string} txid\n */\n\n/**\n * @class Bitcoind\n */\n@mixin(ReadyMixin)\nexport default class Bitcoind extends EventEmitter {\n  /**\n   * @constructor\n   * @param {Object} [opts]\n   * @param {Object} [opts.wallet] Wallet options\n   * @param {function} [opts.wallet.preloadsPoolSize=_.constant(10)] Preload pool size\n   * @param {function} [opts.wallet.keysPoolSize=() => _.random(80, 100)]\n   * @param {function} [opts.wallet.newKeyTimeout=() => _.random(60, 90) * 1000]\n   * @param {function} [opts.wallet.inputsCount=() => _.random(2, 3)]\n   * @param {function} [opts.wallet.outputsCount=() => _.random(3, 5)]\n   * @param {Object} [opts.generate] Generate options\n   * @param {Object} [opts.generate.txs]\n   * @param {function} [opts.generate.txs.background=_.constant(true)]\n   * @param {function} [opts.generate.txs.timeout=() => _.random(6, 9, true) * 1000]\n   * @param {function} [opts.generate.txs.minInBlock=_.constant(5)]\n   * @param {Object} [opts.generate.blocks]\n   * @param {function} [opts.generate.blocks.background=_.constant(true)]\n   * @param {function} [opts.generate.blocks.timeout=() => _.random(60, 90, true) * 1000]\n   * @param {Object} [opts.bitcoind]\n   * @param {function} [opts.bitcoind.path=() => '../bitcoind/bitcoind-rev-3224936']\n   * @param {function} [opts.bitcoind.datadir=async () => _.first(tmpfs.dir({prefix: 'bitcoind-regtest-'}))]\n   * @param {function} [opts.bitcoind.port=() => _.random(20000, 30000)]\n   * @param {function} [opts.bitcoind.rpcport=() => _.random(20000, 30000)]\n   * @param {function} [opts.bitcoind.rpcuser=() => crypto.randomBytes(10).toString('hex')]\n   * @param {function} [opts.bitcoind.rpcpassword=() => crypto.randomBytes(10).toString('hex')]\n   */\n  constructor (opts) {\n    super()\n\n    PUtils.try(async () => {\n      this._opts = _.defaultsDeep(_.cloneDeep(opts) || {}, {\n        wallet: {\n          preloadsPoolSize: _.constant(10),\n          keysPoolSize: () => _.random(80, 100),\n          newKeyTimeout: () => _.random(60, 90) * 1000,\n          inputsCount: () => _.random(2, 2),\n          outputsCount: () => _.random(3, 5)\n        },\n        generate: {\n          txs: {\n            background: _.constant(true),\n            timeout: () => _.random(6, 9, true) * 1000,\n            minInBlock: _.constant(5)\n          },\n          blocks: {\n            background: _.constant(true),\n            timeout: () => _.random(60, 90, true) * 1000\n          }\n        },\n        bitcoind: {\n          path: () => '../bitcoind/bitcoind-rev-3224936',\n          datadir: async () => _.first(await tmpfs.dirAsync({\n            prefix: 'bitcoind-regtest-',\n            keep: false,\n            unsafeCleanup: true\n          })),\n          port: () => _.random(20000, 30000),\n          rpcport: () => _.random(20000, 30000),\n          rpcuser: () => crypto.randomBytes(10).toString('hex'),\n          rpcpassword: () => crypto.randomBytes(10).toString('hex')\n        }\n      })\n\n      // process options\n      this._processOpts = {\n        path: this._opts.bitcoind.path(),\n        datadir: await this._opts.bitcoind.datadir(),\n        port: this._opts.bitcoind.port(),\n        rpcport: this._opts.bitcoind.rpcport(),\n        rpcuser: this._opts.bitcoind.rpcuser(),\n        rpcpassword: this._opts.bitcoind.rpcpassword()\n      }\n\n      // init bitcoind process\n      this._process = spawn(this._opts.bitcoind.path(), [\n        `-regtest`,\n        `-txindex=1`,\n        `-server`,\n        `-datadir=${this._processOpts.datadir}`,\n        `-port=${this._processOpts.port}`,\n        `-rpcport=${this._processOpts.rpcport}`,\n        `-rpcuser=${this._processOpts.rpcuser}`,\n        `-rpcpassword=${this._processOpts.rpcpassword}`,\n        `-printtoconsole`\n      ], {\n        cwd: __dirname,\n        stdio: ['ignore', 'pipe', 'pipe']\n      })\n      this._process.on('error', (err) => { this.emit('error', err) })\n      this._process.on('exit', (code, signal) => { this.emit('exit', code, signal) })\n      this._process.stdout.on('error', (err) => { this.emit('error', err) })\n      this._process.stdout.on('data', (data) => { this.emit('data', data) })\n      this._process.stderr.on('error', (err) => { this.emit('error', err) })\n      this._process.stderr.on('data', (data) => { this.emit('data', data) })\n\n      // await running bitcoind\n      let onErrorExit\n      try {\n        await new Promise((resolve, reject) => {\n          setTimeout(resolve, 1000)\n\n          onErrorExit = (code, signal) => {\n            if (code instanceof Error && signal === undefined) {\n              reject(code)\n            }\n\n            reject(new Error(`Exit with code = ${code} on signal = ${signal}`))\n          }\n\n          this._process.on('error', onErrorExit)\n          this._process.on('exit', onErrorExit)\n        })\n      } finally {\n        this._process.removeListener('error', onErrorExit)\n        this._process.removeListener('exit', onErrorExit)\n      }\n\n      // initialize peer\n      this._peer = new p2p.Peer({\n        host: '127.0.0.1',\n        port: this._processOpts.port,\n        network: bitcore.Networks.get('regtest')\n      })\n\n      this._peer.on('inv', (message) => {\n        let names = []\n\n        for (let inv of message.inventory) {\n          // store inv type name\n          names.push(p2p.Inventory.TYPE_NAME[inv.type])\n\n          // store inv if tx type\n          if (inv.type === p2p.Inventory.TYPE.TX) {\n            this.emit('tx', encode(inv.hash))\n          }\n\n          // emit block if block type\n          if (inv.type === p2p.Inventory.TYPE.BLOCK) {\n            this.emit('block', encode(inv.hash))\n          }\n        }\n      })\n\n      await new Promise((resolve) => {\n        this._peer.once('ready', resolve)\n        this._peer.connect()\n      })\n\n      // wait wallet initialization\n      this._wallet = new Wallet(this)\n      this._wallet.on('error', this.emit.bind(this, 'error'))\n      await this._wallet.ready\n    })\n    .then(() => { this._ready(null) }, (err) => { this._ready(err) })\n\n    // loop for creating new transactions in background\n    this.ready.then(async () => {\n      while (true) {\n        try {\n          await PUtils.delay(this._opts.generate.txs.timeout())\n          if (this._opts.generate.txs.background()) {\n            await this.generateTxs(1)\n          }\n        } catch (err) {\n          this.emit(err)\n        }\n      }\n    })\n\n    // loop for creating new blocks in background\n    this.ready.then(async () => {\n      while (true) {\n        try {\n          await PUtils.delay(this._opts.generate.blocks.timeout())\n          if (this._opts.generate.blocks.background()) {\n            await this.generateBlocks(1)\n          }\n        } catch (err) {\n          this.emit(err)\n        }\n      }\n    })\n  }\n\n  /**\n   * Return value for given option `name`\n   * @param {string} name\n   * @return {*}\n   */\n  getOption (name) { return _.get(this._opts, name) }\n\n  /**\n   * @param {string} name\n   * @param {*}\n   */\n  setOption (name, value) { _.set(this._opts, name, value) }\n\n  /**\n   * Return instance of `RpcClient`\n   * @return {RpcClient}\n   */\n  getRpcClient () {\n    return new RpcClient({\n      host: '127.0.0.1',\n      port: this._processOpts.rpcport,\n      user: this._processOpts.rpcuser,\n      pass: this._processOpts.rpcpassword\n    })\n  }\n\n  /**\n   * Same as func getRpcClient\n   */\n  get rpc () { return this.getRpcClient() }\n\n  /**\n   * @param {function} fn\n   * @return {Promise}\n   */\n  @makeConcurrent({concurrency: 1})\n  withLock (fn) { return fn() }\n\n  /**\n   * Generate `count` blocks\n   * @param {number} count\n   * @return {Promise.<Array.<string>>}\n   */\n  @makeConcurrent({concurrency: 1})\n  async generateBlocks (count) {\n    await this.ready\n\n    let hashes = []\n    for (; count > 0; count -= 1) {\n      let requiredMemPoolSize = this._opts.generate.txs.minInBlock()\n      let memPoolSize = (await this.rpc.getMemPoolInfo()).result.size\n      await this.generateTxs(requiredMemPoolSize - memPoolSize)\n      await this.withLock(async () => {\n        let ret = await this.rpc.generate(1)\n        hashes.push(ret.result[0])\n      })\n    }\n\n    return hashes\n  }\n\n  /**\n   * Generate `count` transactions\n   * @param {number} count\n   * @return {Promise.<Array.<?string>>}\n   */\n  async generateTxs (count) {\n    await this.ready\n    return await* _.times(count).map(() => {\n      return this._wallet.generateTx()\n    })\n  }\n\n  /**\n   * @typedef {Object} Bitcoind~PreloadObject\n   * @property {string} txId\n   * @property {number} outIndex\n   * @property {number} value\n   * @property {bitcore.Script} script\n   * @property {bitcore.PrivateKey} privKey\n   */\n\n  /**\n   * Return Object with utxo data and with private key (balance is 10btc)\n   * @return {Promise.<Bitcoind~PreloadObject>}\n   */\n  async getPreload () {\n    await this.ready\n    return await this._wallet.getPreload()\n  }\n\n  /**\n   * Return instance of `Bitcoind` that have same blockchain\n   * @param {Object} [opts]\n   * @param {boolean} [opts.connected=true]\n   * @return {Promise.<Bitcoind>}\n   */\n  async fork (opts) {\n    let bopts = _.cloneDeep(this._opts)\n    bopts.generate.txs.background = _.constant(false)\n    bopts.generate.blocks.background = _.constant(false)\n    let other = new Bitcoind(bopts)\n\n    await other.ready\n    await this.connect(other)\n\n    if ((await this.rpc.getBlockCount()).result > 0) {\n      await other.generateBlocks(1)\n\n      while (true) {\n        let [mhash, ohash] = await* [this.rpc.getBestBlockHash(), other.rpc.getBestBlockHash()]\n        if (mhash.result === ohash.result) {\n          break\n        }\n\n        await PUtils.delay(500)\n      }\n    }\n\n    other.setOption('generate.txs.background', this._opts.generate.txs.background)\n    other.setOption('generate.blocks.background', this._opts.generate.blocks.background)\n\n    if (!Object(opts).connected) {\n      await this.disconnect(other)\n    }\n\n    return other\n  }\n\n  /**\n   * @param {Bitcoind}\n   * @return {Promise}\n   */\n  async connect (other) {\n    let node = `127.0.0.1:${other._processOpts.port}`\n    await this.rpc.addNode(node, 'onetry')\n  }\n\n  /**\n   * @param {Bitcoind}\n   * @return {Promise}\n   */\n  async disconnect (other) {\n    let node = `127.0.0.1:${other._processOpts.port}`\n    await this.rpc.disconnectNode(node)\n  }\n\n  /**\n   * @return {Promise}\n   */\n  @makeConcurrent({concurrency: 1})\n  async terminate () {\n    let onError\n    let onExit\n\n    if (this._process === null) {\n      throw new Error('Child process already terminated')\n    }\n\n    try {\n      await new Promise((resolve, reject) => {\n        onError = reject\n        onExit = async (code, signal) => {\n          if (!(code === 0 && signal === null)) {\n            return reject(\n              new Error(`Exit with code = ${code} on signal = ${signal}`))\n          }\n\n          try {\n            this._wallet.removeAllListeners()\n            this._peer.removeAllListeners()\n            this._process.removeAllListeners()\n            this._process = null\n            await rimraf(this._processOpts.datadir)\n            resolve()\n          } catch (err) {\n            reject(err)\n          }\n        }\n\n        this._process.on('error', onError)\n        this._process.on('exit', onExit)\n\n        this._process.kill('SIGTERM')\n      })\n    } finally {\n      if (this._process !== null) {\n        this._process.removeListener('error', onError)\n        this._process.removeListener('exit', onExit)\n      }\n    }\n  }\n}\n"]}