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Текущая директория: /opt/BitGoJS/node_modules/stellar-base/lib
Просмотр файла: transaction.js
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.Transaction = undefined;
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
var _map = require('lodash/map');
var _map2 = _interopRequireDefault(_map);
var _xdr = require('./xdr');
var _xdr2 = _interopRequireDefault(_xdr);
var _hashing = require('./hashing');
var _strkey = require('./strkey');
var _operation = require('./operation');
var _memo = require('./memo');
var _transaction_base = require('./transaction_base');
var _decode_encode_muxed_account = require('./util/decode_encode_muxed_account');
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
/**
* Use {@link TransactionBuilder} to build a transaction object. If you have an
* object or base64-encoded string of the transaction envelope XDR, use {@link
* TransactionBuilder.fromXDR}.
*
* Once a Transaction has been created, its attributes and operations should not
* be changed. You should only add signatures (using {@link Transaction#sign})
* to a Transaction object before submitting to the network or forwarding on to
* additional signers.
*
* @constructor
*
* @param {string|xdr.TransactionEnvelope} envelope - transaction envelope
* object or base64 encoded string
* @param {string} [networkPassphrase] - passphrase of the target stellar
* network (e.g. "Public Global Stellar Network ; September 2015")
*
* @extends TransactionBase
*/
var Transaction = exports.Transaction = function (_TransactionBase) {
_inherits(Transaction, _TransactionBase);
function Transaction(envelope, networkPassphrase) {
_classCallCheck(this, Transaction);
if (typeof envelope === 'string') {
var buffer = Buffer.from(envelope, 'base64');
envelope = _xdr2.default.TransactionEnvelope.fromXDR(buffer);
}
var envelopeType = envelope.switch();
if (!(envelopeType === _xdr2.default.EnvelopeType.envelopeTypeTxV0() || envelopeType === _xdr2.default.EnvelopeType.envelopeTypeTx())) {
throw new Error('Invalid TransactionEnvelope: expected an envelopeTypeTxV0 or envelopeTypeTx but received an ' + envelopeType.name + '.');
}
var txEnvelope = envelope.value();
var tx = txEnvelope.tx();
var fee = tx.fee().toString();
var signatures = (txEnvelope.signatures() || []).slice();
var _this = _possibleConstructorReturn(this, (Transaction.__proto__ || Object.getPrototypeOf(Transaction)).call(this, tx, signatures, fee, networkPassphrase));
_this._envelopeType = envelopeType;
_this._memo = tx.memo();
_this._sequence = tx.seqNum().toString();
switch (_this._envelopeType) {
case _xdr2.default.EnvelopeType.envelopeTypeTxV0():
_this._source = _strkey.StrKey.encodeEd25519PublicKey(_this.tx.sourceAccountEd25519());
break;
default:
_this._source = (0, _decode_encode_muxed_account.encodeMuxedAccountToAddress)(_this.tx.sourceAccount());
break;
}
var cond = null;
var timeBounds = null;
switch (_this._envelopeType) {
case _xdr2.default.EnvelopeType.envelopeTypeTxV0():
timeBounds = tx.timeBounds();
break;
case _xdr2.default.EnvelopeType.envelopeTypeTx():
switch (tx.cond().switch()) {
case _xdr2.default.PreconditionType.precondTime():
timeBounds = tx.cond().timeBounds();
break;
case _xdr2.default.PreconditionType.precondV2():
cond = tx.cond().v2();
timeBounds = cond.timeBounds();
break;
default:
break;
}
break;
default:
break;
}
if (timeBounds) {
_this._timeBounds = {
minTime: timeBounds.minTime().toString(),
maxTime: timeBounds.maxTime().toString()
};
}
if (cond) {
var ledgerBounds = cond.ledgerBounds();
if (ledgerBounds) {
_this._ledgerBounds = {
minLedger: ledgerBounds.minLedger(),
maxLedger: ledgerBounds.maxLedger()
};
}
var minSeq = cond.minSeqNum();
if (minSeq) {
_this._minAccountSequence = minSeq.toString();
}
_this._minAccountSequenceAge = cond.minSeqAge();
_this._minAccountSequenceLedgerGap = cond.minSeqLedgerGap();
_this._extraSigners = cond.extraSigners();
}
var operations = tx.operations() || [];
_this._operations = (0, _map2.default)(operations, function (op) {
return _operation.Operation.fromXDRObject(op);
});
return _this;
}
/**
* @type {object}
* @property {string} 64 bit unix timestamp
* @property {string} 64 bit unix timestamp
* @readonly
*/
_createClass(Transaction, [{
key: 'signatureBase',
/**
* Returns the "signature base" of this transaction, which is the value
* that, when hashed, should be signed to create a signature that
* validators on the Stellar Network will accept.
*
* It is composed of a 4 prefix bytes followed by the xdr-encoded form
* of this transaction.
* @returns {Buffer}
*/
value: function signatureBase() {
var tx = this.tx;
// Backwards Compatibility: Use ENVELOPE_TYPE_TX to sign ENVELOPE_TYPE_TX_V0
// we need a Transaction to generate the signature base
if (this._envelopeType === _xdr2.default.EnvelopeType.envelopeTypeTxV0()) {
tx = _xdr2.default.Transaction.fromXDR(Buffer.concat([
// TransactionV0 is a transaction with the AccountID discriminant
// stripped off, we need to put it back to build a valid transaction
// which we can use to build a TransactionSignaturePayloadTaggedTransaction
_xdr2.default.PublicKeyType.publicKeyTypeEd25519().toXDR(), tx.toXDR()]));
}
var taggedTransaction = new _xdr2.default.TransactionSignaturePayloadTaggedTransaction.envelopeTypeTx(tx);
var txSignature = new _xdr2.default.TransactionSignaturePayload({
networkId: _xdr2.default.Hash.fromXDR((0, _hashing.hash)(this.networkPassphrase)),
taggedTransaction: taggedTransaction
});
return txSignature.toXDR();
}
/**
* To envelope returns a xdr.TransactionEnvelope which can be submitted to the network.
* @returns {xdr.TransactionEnvelope}
*/
}, {
key: 'toEnvelope',
value: function toEnvelope() {
var rawTx = this.tx.toXDR();
var signatures = this.signatures.slice(); // make a copy of the signatures
var envelope = void 0;
switch (this._envelopeType) {
case _xdr2.default.EnvelopeType.envelopeTypeTxV0():
envelope = new _xdr2.default.TransactionEnvelope.envelopeTypeTxV0(new _xdr2.default.TransactionV0Envelope({
tx: _xdr2.default.TransactionV0.fromXDR(rawTx), // make a copy of tx
signatures: signatures
}));
break;
case _xdr2.default.EnvelopeType.envelopeTypeTx():
envelope = new _xdr2.default.TransactionEnvelope.envelopeTypeTx(new _xdr2.default.TransactionV1Envelope({
tx: _xdr2.default.Transaction.fromXDR(rawTx), // make a copy of tx
signatures: signatures
}));
break;
default:
throw new Error('Invalid TransactionEnvelope: expected an envelopeTypeTxV0 or envelopeTypeTx but received an ' + this._envelopeType.name + '.');
}
return envelope;
}
/**
* Calculate the claimable balance ID for an operation within the transaction.
*
* @param {integer} opIndex the index of the CreateClaimableBalance op
* @returns {string} a hex string representing the claimable balance ID
*
* @throws {RangeError} for invalid `opIndex` value
* @throws {TypeError} if op at `opIndex` is not `CreateClaimableBalance`
* @throws for general XDR un/marshalling failures
*
* @see https://github.com/stellar/go/blob/d712346e61e288d450b0c08038c158f8848cc3e4/txnbuild/transaction.go#L392-L435
*
*/
}, {
key: 'getClaimableBalanceId',
value: function getClaimableBalanceId(opIndex) {
// Validate and then extract the operation from the transaction.
if (!Number.isInteger(opIndex) || opIndex < 0 || opIndex >= this.operations.length) {
throw new RangeError('invalid operation index');
}
var op = this.operations[opIndex];
try {
op = _operation.Operation.createClaimableBalance(op);
} catch (err) {
throw new TypeError('expected createClaimableBalance, got ' + op.type + ': ' + err);
}
// Always use the transaction's *unmuxed* source.
var account = _strkey.StrKey.decodeEd25519PublicKey((0, _decode_encode_muxed_account.extractBaseAddress)(this.source));
var operationId = _xdr2.default.HashIdPreimage.envelopeTypeOpId(new _xdr2.default.HashIdPreimageOperationId({
sourceAccount: _xdr2.default.AccountId.publicKeyTypeEd25519(account),
seqNum: _xdr2.default.SequenceNumber.fromString(this.sequence),
opNum: opIndex
}));
var opIdHash = (0, _hashing.hash)(operationId.toXDR('raw'));
var balanceId = _xdr2.default.ClaimableBalanceId.claimableBalanceIdTypeV0(opIdHash);
return balanceId.toXDR('hex');
}
}, {
key: 'timeBounds',
get: function get() {
return this._timeBounds;
},
set: function set(value) {
throw new Error('Transaction is immutable');
}
/**
* @type {object}
* @property {number} minLedger - smallest ledger bound (uint32)
* @property {number} maxLedger - largest ledger bound (or 0 for inf)
* @readonly
*/
}, {
key: 'ledgerBounds',
get: function get() {
return this._ledgerBounds;
},
set: function set(value) {
throw new Error('Transaction is immutable');
}
/**
* @type {string} 64 bit account sequence
* @readonly
*/
}, {
key: 'minAccountSequence',
get: function get() {
return this._minAccountSequence;
},
set: function set(value) {
throw new Error('Transaction is immutable');
}
/**
* @type {number} 64 bit number of seconds
* @readonly
*/
}, {
key: 'minAccountSequenceAge',
get: function get() {
return this._minAccountSequenceAge;
},
set: function set(value) {
throw new Error('Transaction is immutable');
}
/**
* @type {number} 32 bit number of ledgers
* @readonly
*/
}, {
key: 'minAccountSequenceLedgerGap',
get: function get() {
return this._minAccountSequenceLedgerGap;
},
set: function set(value) {
throw new Error('Transaction is immutable');
}
/**
* @type {string[]} array of extra signers (@{link StrKey}s)
* @readonly
*/
}, {
key: 'extraSigners',
get: function get() {
return this._extraSigners;
},
set: function set(value) {
throw new Error('Transaction is immutable');
}
/**
* @type {string}
* @readonly
*/
}, {
key: 'sequence',
get: function get() {
return this._sequence;
},
set: function set(value) {
throw new Error('Transaction is immutable');
}
/**
* @type {string}
* @readonly
*/
}, {
key: 'source',
get: function get() {
return this._source;
},
set: function set(value) {
throw new Error('Transaction is immutable');
}
/**
* @type {Array.<xdr.Operation>}
* @readonly
*/
}, {
key: 'operations',
get: function get() {
return this._operations;
},
set: function set(value) {
throw new Error('Transaction is immutable');
}
/**
* @type {string}
* @readonly
*/
}, {
key: 'memo',
get: function get() {
return _memo.Memo.fromXDRObject(this._memo);
},
set: function set(value) {
throw new Error('Transaction is immutable');
}
}]);
return Transaction;
}(_transaction_base.TransactionBase);Выполнить команду
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