dpos-offline
Version:
Offline Signing Transactions for DPOS Blockchains
115 lines (114 loc) • 4.64 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
Object.defineProperty(exports, "__esModule", { value: true });
var ByteBuffer = require("bytebuffer");
var varuint = require("varuint-bitcoin");
var base_rise_1 = require("../base_rise");
var rise_address_1 = require("../rise_address");
var BaseRiseV2Codec = /** @class */ (function (_super) {
__extends(BaseRiseV2Codec, _super);
function BaseRiseV2Codec() {
return _super !== null && _super.apply(this, arguments) || this;
}
BaseRiseV2Codec.prototype.calcBytes = function (tx) {
var bb = new ByteBuffer(1024, true);
function encodeVarUint(buf) {
return Buffer.concat([varuint.encode(buf.length), buf]);
}
bb.writeUint8(tx.type);
bb.writeUint32(tx.version);
bb.writeUint32(tx.timestamp);
bb.append(encodeVarUint(tx.senderPubData));
bb.append(encodeVarUint(tx.recipientId ? rise_address_1.RiseIdsHandler.addressToBytes(tx.recipientId) : Buffer.alloc(0)));
// TODO: use some arbitrary precision lib to serialize it into a buff
bb.writeUint64(parseInt(tx.amount, 10));
bb.writeUint64(parseInt(tx.fee, 10));
bb.append(encodeVarUint(this.assetBytes(tx)));
bb.flip();
return new Buffer(bb.toBuffer());
};
BaseRiseV2Codec.prototype.fromBytes = function (buff) {
var offset = 0;
function readVarUint() {
var length = varuint.decode(buff, offset);
offset += varuint.decode.bytes;
return readSlice(length);
}
function readUint8() {
var toRet = buff.readUInt8(offset);
offset += 1;
return toRet;
}
function readUint32() {
var toRet = buff.readUInt32LE(offset);
offset += 4;
return toRet;
}
function readUint64() {
var _a = __read([
readUint32(),
readUint32(),
], 2), second = _a[0], first = _a[1];
return first * Math.pow(2, 32) + second;
}
function readSlice(howMuch) {
var toRet = buff.slice(offset, offset + howMuch);
offset += howMuch;
return toRet;
}
return __assign({
// tslint:disable object-literal-sort-keys
id: rise_address_1.RiseIdsHandler.calcTxIdFromBytes(buff), type: readUint8(), version: readUint32(), timestamp: readUint32() }, (function () {
var senderPubData = readVarUint();
return {
senderId: rise_address_1.RiseIdsHandler.addressFromPubData(senderPubData),
senderPubData: senderPubData,
};
})(), { recipientId: rise_address_1.RiseIdsHandler.addressFromBytes(readVarUint()), amount: "" + readUint64(), fee: "" + readUint64(), asset: this.assetFromBytes(readVarUint()), signatures: (function () {
return new Array(Math.floor((buff.length - offset) / 64))
.fill(null)
.map(function () { return readSlice(64); });
})() });
};
return BaseRiseV2Codec;
}(base_rise_1.BaseRiseCodec));
exports.BaseRiseV2Codec = BaseRiseV2Codec;