1965 lines
34 KiB
JavaScript
1965 lines
34 KiB
JavaScript
/*!
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* packets.js - packets for hsd
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* Copyright (c) 2017-2018, Christopher Jeffrey (MIT License).
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* https://github.com/handshake-org/hsd
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*/
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'use strict';
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/**
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* @module net/packets
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*/
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const assert = require('bsert');
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const bio = require('bufio');
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const blake2b = require('bcrypto/lib/blake2b');
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const UrkelProof = require('urkel').Proof;
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const {BloomFilter} = require('bfilter');
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const common = require('./common');
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const util = require('../utils/util');
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const bip152 = require('./bip152');
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const NetAddress = require('./netaddress');
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const consensus = require('../protocol/consensus');
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const Headers = require('../primitives/headers');
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const InvItem = require('../primitives/invitem');
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const MemBlock = require('../primitives/memblock');
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const MerkleBlock = require('../primitives/merkleblock');
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const TX = require('../primitives/tx');
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const Claim = require('../primitives/claim');
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const AirdropProof = require('../primitives/airdropproof');
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const {encoding} = bio;
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const DUMMY = Buffer.alloc(0);
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/** @typedef {import('../types').Hash} Hash */
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/** @typedef {import('../types').Rate} Rate */
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/** @typedef {import('../types').BufioWriter} BufioWriter */
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/** @typedef {import('../protocol/errors').VerifyError} VerifyError */
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/** @typedef {import('../primitives/block')} Block */
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/**
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* Packet types.
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* @enum {Number}
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* @default
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*/
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exports.types = {
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VERSION: 0,
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VERACK: 1,
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PING: 2,
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PONG: 3,
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GETADDR: 4,
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ADDR: 5,
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INV: 6,
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GETDATA: 7,
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NOTFOUND: 8,
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GETBLOCKS: 9,
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GETHEADERS: 10,
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HEADERS: 11,
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SENDHEADERS: 12,
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BLOCK: 13,
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TX: 14,
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REJECT: 15,
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MEMPOOL: 16,
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FILTERLOAD: 17,
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FILTERADD: 18,
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FILTERCLEAR: 19,
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MERKLEBLOCK: 20,
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FEEFILTER: 21,
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SENDCMPCT: 22,
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CMPCTBLOCK: 23,
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GETBLOCKTXN: 24,
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BLOCKTXN: 25,
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GETPROOF: 26,
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PROOF: 27,
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CLAIM: 28,
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AIRDROP: 29,
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UNKNOWN: 30,
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// Internal
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INTERNAL: 31,
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DATA: 32
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};
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const types = exports.types;
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/**
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* Packet types by value.
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* @const {Object}
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* @default
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*/
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exports.typesByVal = [
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'VERSION',
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'VERACK',
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'PING',
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'PONG',
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'GETADDR',
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'ADDR',
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'INV',
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'GETDATA',
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'NOTFOUND',
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'GETBLOCKS',
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'GETHEADERS',
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'HEADERS',
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'SENDHEADERS',
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'BLOCK',
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'TX',
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'REJECT',
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'MEMPOOL',
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'FILTERLOAD',
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'FILTERADD',
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'FILTERCLEAR',
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'MERKLEBLOCK',
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'FEEFILTER',
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'SENDCMPCT',
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'CMPCTBLOCK',
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'GETBLOCKTXN',
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'BLOCKTXN',
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'GETPROOF',
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'PROOF',
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'CLAIM',
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'AIRDROP',
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'UNKNOWN',
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// Internal
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'INTERNAL',
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'DATA'
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];
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/**
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* Base Packet
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*/
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class Packet extends bio.Struct {
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/**
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* Create a base packet.
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* @constructor
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*/
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constructor() {
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super();
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this.type = 0;
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}
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get rawType() {
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return this.type;
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}
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}
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/**
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* Version Packet
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* @extends Packet
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* @property {Number} version - Protocol version.
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* @property {Number} services - Service bits.
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* @property {Number} time - Timestamp of discovery.
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* @property {NetAddress} remote - Their address.
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* @property {Buffer} nonce
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* @property {String} agent - User agent string.
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* @property {Number} height - Chain height.
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* @property {Boolean} noRelay - Whether transactions
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* should be relayed immediately.
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*/
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class VersionPacket extends Packet {
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/**
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* Create a version packet.
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* @constructor
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* @param {Object} [options]
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* @param {Number?} options.version - Protocol version.
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* @param {Number?} options.services - Service bits.
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* @param {Number?} options.time - Timestamp of discovery.
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* @param {NetAddress?} options.remote - Their address.
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* @param {Buffer?} options.nonce
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* @param {String?} options.agent - User agent string.
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* @param {Number?} options.height - Chain height.
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* @param {Boolean?} options.noRelay - Whether transactions
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* should be relayed immediately.
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*/
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constructor(options) {
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super();
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this.type = exports.types.VERSION;
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/** @type {Number} */
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this.version = common.PROTOCOL_VERSION;
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this.services = common.LOCAL_SERVICES;
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this.time = util.now();
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this.remote = new NetAddress();
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this.nonce = common.ZERO_NONCE;
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this.agent = common.USER_AGENT;
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this.height = 0;
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this.noRelay = false;
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if (options)
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this.fromOptions(options);
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}
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/**
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* Inject properties from options.
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* @param {Object} options
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*/
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fromOptions(options) {
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if (options.version != null)
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this.version = options.version;
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if (options.services != null)
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this.services = options.services;
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if (options.time != null)
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this.time = options.time;
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if (options.remote)
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this.remote.fromOptions(options.remote);
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if (options.nonce)
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this.nonce = options.nonce;
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if (options.agent)
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this.agent = options.agent;
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if (options.height != null)
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this.height = options.height;
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if (options.noRelay != null)
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this.noRelay = options.noRelay;
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return this;
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}
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/**
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* Get serialization size.
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* @returns {Number}
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*/
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getSize() {
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let size = 0;
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size += 20;
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size += this.remote.getSize();
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size += 8;
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size += 1;
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size += this.agent.length;
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size += 5;
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return size;
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}
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/**
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* Write version packet to buffer writer.
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* @param {BufioWriter} bw
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* @returns {BufioWriter}
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*/
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write(bw) {
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bw.writeU32(this.version);
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bw.writeU32(this.services);
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bw.writeU32(0);
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bw.writeU64(this.time);
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this.remote.write(bw);
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bw.writeBytes(this.nonce);
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bw.writeU8(this.agent.length);
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bw.writeString(this.agent, 'ascii');
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bw.writeU32(this.height);
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bw.writeU8(this.noRelay ? 1 : 0);
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return bw;
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}
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/**
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* Inject properties from buffer reader.
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* @param {bio.BufferReader} br
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* @returns {this}
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*/
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read(br) {
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this.version = br.readU32();
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this.services = br.readU32();
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// Note: hi service bits
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// are currently unused.
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br.readU32();
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this.time = br.readU64();
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this.remote.read(br);
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this.nonce = br.readBytes(8);
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this.agent = br.readString(br.readU8(), 'ascii');
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this.height = br.readU32();
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this.noRelay = br.readU8() === 1;
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return this;
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}
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}
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/**
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* Verack Packet
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* @extends Packet
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*/
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class VerackPacket extends Packet {
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/**
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* Create a `verack` packet.
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* @constructor
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*/
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constructor() {
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super();
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this.type = exports.types.VERACK;
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}
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}
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/**
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* Ping Packet
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* @extends Packet
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* @property {BN|null} nonce
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*/
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class PingPacket extends Packet {
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/**
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* Create a `ping` packet.
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* @constructor
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* @param {Buffer} nonce
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*/
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constructor(nonce) {
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super();
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this.type = exports.types.PING;
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this.nonce = nonce || common.ZERO_NONCE;
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}
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/**
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* Get serialization size.
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* @returns {Number}
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*/
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getSize() {
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return 8;
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}
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/**
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* Serialize ping packet to writer.
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* @param {BufioWriter} bw
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* @returns {BufioWriter}
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*/
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write(bw) {
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bw.writeBytes(this.nonce);
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return bw;
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}
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/**
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* Inject properties from buffer reader.
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* @param {bio.BufferReader} br
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*/
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read(br) {
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this.nonce = br.readBytes(8);
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return this;
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}
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}
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/**
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* Pong Packet
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* @extends Packet
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* @property {BN} nonce
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*/
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class PongPacket extends Packet {
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/**
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* Create a `pong` packet.
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* @constructor
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* @param {Buffer} nonce
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*/
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constructor(nonce) {
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super();
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this.type = exports.types.PONG;
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this.nonce = nonce || common.ZERO_NONCE;
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}
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/**
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* Get serialization size.
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* @returns {Number}
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*/
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getSize() {
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return 8;
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}
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/**
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* Serialize pong packet to writer.
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* @param {BufioWriter} bw
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* @returns {BufioWriter}
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*/
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write(bw) {
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bw.writeBytes(this.nonce);
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return bw;
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}
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/**
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* Inject properties from buffer reader.
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* @param {bio.BufferReader} br
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*/
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read(br) {
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this.nonce = br.readBytes(8);
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return this;
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}
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}
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/**
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* GetAddr Packet
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* @extends Packet
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*/
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class GetAddrPacket extends Packet {
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/**
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* Create a `getaddr` packet.
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* @constructor
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*/
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constructor() {
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super();
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this.type = exports.types.GETADDR;
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}
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}
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/**
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* Addr Packet
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* @extends Packet
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* @property {NetAddress[]} items
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*/
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class AddrPacket extends Packet {
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/**
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* Create a `addr` packet.
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* @constructor
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* @param {(NetAddress[])?} items
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*/
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constructor(items) {
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super();
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this.type = exports.types.ADDR;
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this.items = items || [];
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}
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/**
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* Get serialization size.
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* @returns {Number}
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*/
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getSize() {
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let size = 0;
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size += encoding.sizeVarint(this.items.length);
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for (const addr of this.items)
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size += addr.getSize();
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return size;
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}
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/**
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* Serialize addr packet to writer.
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* @param {BufioWriter} bw
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* @returns {BufioWriter}
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*/
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write(bw) {
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bw.writeVarint(this.items.length);
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for (const item of this.items)
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item.write(bw);
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return bw;
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}
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/**
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* Inject properties from serialized data.
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* @param {bio.BufferReader} br
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*/
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read(br) {
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const count = br.readVarint();
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for (let i = 0; i < count; i++)
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this.items.push(NetAddress.read(br));
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return this;
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}
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}
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/**
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* Inv Packet
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* @extends Packet
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* @property {InvItem[]} items
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*/
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class InvPacket extends Packet {
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/**
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* Create a `inv` packet.
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* @constructor
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* @param {(InvItem[])?} items
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*/
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constructor(items) {
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super();
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this.type = exports.types.INV;
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/** @type {InvItem[]} */
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this.items = items || [];
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}
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/**
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* Get serialization size.
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* @returns {Number}
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*/
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getSize() {
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let size = 0;
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size += encoding.sizeVarint(this.items.length);
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size += 36 * this.items.length;
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return size;
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}
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/**
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* Serialize inv packet to writer.
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* @param {BufioWriter} bw
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* @returns {BufioWriter}
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*/
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write(bw) {
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assert(this.items.length <= common.MAX_INV);
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bw.writeVarint(this.items.length);
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for (const item of this.items)
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item.write(bw);
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return bw;
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}
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/**
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* Inject properties from buffer reader.
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* @param {bio.BufferReader} br
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*/
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read(br) {
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const count = br.readVarint();
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assert(count <= common.MAX_INV, 'Inv item count too high.');
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for (let i = 0; i < count; i++)
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this.items.push(InvItem.read(br));
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return this;
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}
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}
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/**
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* GetData Packet
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* @extends InvPacket
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*/
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class GetDataPacket extends InvPacket {
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/**
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* Create a `getdata` packet.
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* @constructor
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* @param {(InvItem[])?} items
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*/
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constructor(items) {
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super(items);
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this.type = exports.types.GETDATA;
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}
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}
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/**
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* NotFound Packet
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* @extends InvPacket
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*/
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class NotFoundPacket extends InvPacket {
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/**
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* Create a `notfound` packet.
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* @constructor
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* @param {(InvItem[])?} items
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*/
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constructor(items) {
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super(items);
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this.type = exports.types.NOTFOUND;
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}
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}
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/**
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* GetBlocks Packet
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* @extends Packet
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* @property {Hash[]} locator
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* @property {Hash|null} stop
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*/
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class GetBlocksPacket extends Packet {
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/**
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* Create a `getblocks` packet.
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* @constructor
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* @param {Hash[]} locator
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* @param {Hash?} stop
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*/
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constructor(locator, stop) {
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super();
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this.type = exports.types.GETBLOCKS;
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this.locator = locator || [];
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this.stop = stop || consensus.ZERO_HASH;
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}
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/**
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* Get serialization size.
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* @returns {Number}
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*/
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getSize() {
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let size = 0;
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size += encoding.sizeVarint(this.locator.length);
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size += 32 * this.locator.length;
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size += 32;
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return size;
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}
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/**
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* Serialize getblocks packet to writer.
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* @param {BufioWriter} bw
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* @returns {BufioWriter}
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*/
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write(bw) {
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assert(this.locator.length <= common.MAX_INV, 'Too many block hashes.');
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bw.writeVarint(this.locator.length);
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for (const hash of this.locator)
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bw.writeHash(hash);
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bw.writeHash(this.stop);
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return bw;
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}
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/**
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* Inject properties from buffer reader.
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* @param {bio.BufferReader} br
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*/
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read(br) {
|
|
const count = br.readVarint();
|
|
|
|
assert(count <= common.MAX_INV, 'Too many block hashes.');
|
|
|
|
for (let i = 0; i < count; i++)
|
|
this.locator.push(br.readHash());
|
|
|
|
this.stop = br.readHash();
|
|
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* GetHeader Packets
|
|
* @extends GetBlocksPacket
|
|
*/
|
|
|
|
class GetHeadersPacket extends GetBlocksPacket {
|
|
/**
|
|
* Create a `getheaders` packet.
|
|
* @constructor
|
|
* @param {Hash[]} locator
|
|
* @param {Hash?} stop
|
|
*/
|
|
|
|
constructor(locator, stop) {
|
|
super(locator, stop);
|
|
this.type = exports.types.GETHEADERS;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Headers Packet
|
|
* @extends Packet
|
|
* @property {Headers[]} items
|
|
*/
|
|
|
|
class HeadersPacket extends Packet {
|
|
/**
|
|
* Create a `headers` packet.
|
|
* @constructor
|
|
* @param {(Headers[])?} items
|
|
*/
|
|
|
|
constructor(items) {
|
|
super();
|
|
|
|
this.type = exports.types.HEADERS;
|
|
|
|
this.items = items || [];
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
let size = 0;
|
|
|
|
size += encoding.sizeVarint(this.items.length);
|
|
|
|
for (const item of this.items)
|
|
size += item.getSize();
|
|
|
|
return size;
|
|
}
|
|
|
|
/**
|
|
* Serialize headers packet to writer.
|
|
* @param {BufioWriter} bw
|
|
* @returns {BufioWriter}
|
|
*/
|
|
|
|
write(bw) {
|
|
assert(this.items.length <= 2000, 'Too many headers.');
|
|
|
|
bw.writeVarint(this.items.length);
|
|
|
|
for (const item of this.items)
|
|
item.write(bw);
|
|
|
|
return bw;
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
const count = br.readVarint();
|
|
|
|
assert(count <= 2000, 'Too many headers.');
|
|
|
|
for (let i = 0; i < count; i++)
|
|
this.items.push(Headers.read(br));
|
|
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* SendHeaders Packet
|
|
* @extends Packet
|
|
*/
|
|
|
|
class SendHeadersPacket extends Packet {
|
|
/**
|
|
* Create a `sendheaders` packet.
|
|
* @constructor
|
|
*/
|
|
|
|
constructor() {
|
|
super();
|
|
this.type = exports.types.SENDHEADERS;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Block Packet
|
|
* @extends Packet
|
|
* @property {Block} block
|
|
*/
|
|
|
|
class BlockPacket extends Packet {
|
|
/**
|
|
* Create a `block` packet.
|
|
* @constructor
|
|
* @param {Block|null} block
|
|
*/
|
|
|
|
constructor(block) {
|
|
super();
|
|
|
|
this.type = exports.types.BLOCK;
|
|
|
|
this.block = block || new MemBlock();
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return this.block.getSize();
|
|
}
|
|
|
|
/**
|
|
* Serialize block packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
return this.block.write(bw);
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.block.read(br);
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* TX Packet
|
|
* @extends Packet
|
|
* @property {TX} block
|
|
*/
|
|
|
|
class TXPacket extends Packet {
|
|
/**
|
|
* Create a `tx` packet.
|
|
* @constructor
|
|
* @param {TX|null} tx
|
|
*/
|
|
|
|
constructor(tx) {
|
|
super();
|
|
|
|
this.type = exports.types.TX;
|
|
|
|
this.tx = tx || new TX();
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return this.tx.getSize();
|
|
}
|
|
|
|
/**
|
|
* Serialize tx packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
return this.tx.write(bw);
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.tx.read(br);
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Reject Packet
|
|
* @extends Packet
|
|
* @property {(Number|String)?} code - Code
|
|
* (see {@link RejectPacket.codes}).
|
|
* @property {String?} msg - Message.
|
|
* @property {String?} reason - Reason.
|
|
* @property {(Hash|Buffer)?} hash - Transaction or block hash.
|
|
*/
|
|
|
|
class RejectPacket extends Packet {
|
|
/**
|
|
* Create reject packet.
|
|
* @constructor
|
|
* @param {Object} [options]
|
|
*/
|
|
|
|
constructor(options) {
|
|
super();
|
|
|
|
this.type = exports.types.REJECT;
|
|
|
|
this.message = 0;
|
|
this.code = RejectPacket.codes.INVALID;
|
|
this.reason = '';
|
|
/** @type {Hash?} */
|
|
this.hash = null;
|
|
|
|
if (options)
|
|
this.fromOptions(options);
|
|
}
|
|
|
|
/**
|
|
* Inject properties from options object.
|
|
* @param {Object} options
|
|
*/
|
|
|
|
fromOptions(options) {
|
|
let code = options.code;
|
|
|
|
if (options.message != null)
|
|
this.message = options.message | 0;
|
|
|
|
if (code != null) {
|
|
if (typeof code === 'string')
|
|
code = RejectPacket.codes[code.toUpperCase()];
|
|
|
|
if (code >= RejectPacket.codes.INTERNAL)
|
|
code = RejectPacket.codes.INVALID;
|
|
|
|
this.code = code;
|
|
}
|
|
|
|
if (options.reason)
|
|
this.reason = options.reason;
|
|
|
|
if (options.hash)
|
|
this.hash = options.hash;
|
|
|
|
return this;
|
|
}
|
|
|
|
/**
|
|
* Get symbolic code.
|
|
* @returns {String}
|
|
*/
|
|
|
|
getCode() {
|
|
const code = RejectPacket.codesByVal[this.code];
|
|
|
|
if (!code)
|
|
return this.code.toString(10);
|
|
|
|
return code.toLowerCase();
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
let size = 0;
|
|
|
|
size += 1;
|
|
size += 1;
|
|
size += 1;
|
|
size += this.reason.length;
|
|
|
|
if (this.hash)
|
|
size += 32;
|
|
|
|
return size;
|
|
}
|
|
|
|
/**
|
|
* Serialize reject packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
bw.writeU8(this.message);
|
|
bw.writeU8(this.code);
|
|
bw.writeU8(this.reason.length);
|
|
bw.writeString(this.reason, 'ascii');
|
|
|
|
if (this.hash)
|
|
bw.writeHash(this.hash);
|
|
|
|
return bw;
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.message = br.readU8();
|
|
this.code = br.readU8();
|
|
this.reason = br.readString(br.readU8(), 'ascii');
|
|
|
|
switch (this.message) {
|
|
case types.BLOCK:
|
|
case types.TX:
|
|
case types.CLAIM:
|
|
case types.AIRDROP:
|
|
this.hash = br.readHash();
|
|
break;
|
|
default:
|
|
this.hash = null;
|
|
break;
|
|
}
|
|
|
|
return this;
|
|
}
|
|
|
|
/**
|
|
* Inject properties from reason message and object.
|
|
* @param {(String|Number)?} code
|
|
* @param {String} reason
|
|
* @param {Number?} [msg]
|
|
* @param {Hash?} [hash]
|
|
*/
|
|
|
|
fromReason(code, reason, msg, hash) {
|
|
if (typeof code === 'string')
|
|
code = RejectPacket.codes[code.toUpperCase()];
|
|
|
|
if (!code)
|
|
code = RejectPacket.codes.INVALID;
|
|
|
|
if (code >= RejectPacket.codes.INTERNAL)
|
|
code = RejectPacket.codes.INVALID;
|
|
|
|
this.message = 0;
|
|
this.code = code;
|
|
this.reason = reason;
|
|
|
|
if (msg != null) {
|
|
assert(hash);
|
|
this.message = msg | 0;
|
|
this.hash = hash;
|
|
}
|
|
|
|
return this;
|
|
}
|
|
|
|
/**
|
|
* Instantiate reject packet from reason message.
|
|
* @param {(String|Number)?} code
|
|
* @param {String} reason
|
|
* @param {Number?} [msg]
|
|
* @param {Hash?} [hash]
|
|
* @returns {RejectPacket}
|
|
*/
|
|
|
|
static fromReason(code, reason, msg, hash) {
|
|
return new this().fromReason(code, reason, msg, hash);
|
|
}
|
|
|
|
/**
|
|
* Instantiate reject packet from verify error.
|
|
* @param {VerifyError} err
|
|
* @param {(TX|Block)?} [obj]
|
|
* @returns {RejectPacket}
|
|
*/
|
|
|
|
static fromError(err, obj) {
|
|
return this.fromReason(err.code, err.reason, obj);
|
|
}
|
|
|
|
/**
|
|
* Inspect reject packet.
|
|
* @returns {String}
|
|
*/
|
|
|
|
format() {
|
|
const msg = exports.typesByVal[this.message] || 'UNKNOWN';
|
|
const code = RejectPacket.codesByVal[this.code] || this.code;
|
|
const hash = this.hash ? this.hash : null;
|
|
return '<Reject:'
|
|
+ ` msg=${msg}`
|
|
+ ` code=${code}`
|
|
+ ` reason=${this.reason}`
|
|
+ ` hash=${hash}`
|
|
+ '>';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Reject codes. Note that `internal` and higher
|
|
* are not meant for use on the p2p network.
|
|
* @enum {Number}
|
|
* @default
|
|
*/
|
|
|
|
RejectPacket.codes = {
|
|
MALFORMED: 0x01,
|
|
INVALID: 0x10,
|
|
OBSOLETE: 0x11,
|
|
DUPLICATE: 0x12,
|
|
NONSTANDARD: 0x40,
|
|
DUST: 0x41,
|
|
INSUFFICIENTFEE: 0x42,
|
|
CHECKPOINT: 0x43,
|
|
// Internal codes (NOT FOR USE ON NETWORK)
|
|
INTERNAL: 0x100,
|
|
HIGHFEE: 0x101,
|
|
ALREADYKNOWN: 0x102,
|
|
CONFLICT: 0x103
|
|
};
|
|
|
|
/**
|
|
* Reject codes by value.
|
|
* @const {Object}
|
|
*/
|
|
|
|
RejectPacket.codesByVal = {
|
|
0x01: 'MALFORMED',
|
|
0x10: 'INVALID',
|
|
0x11: 'OBSOLETE',
|
|
0x12: 'DUPLICATE',
|
|
0x40: 'NONSTANDARD',
|
|
0x41: 'DUST',
|
|
0x42: 'INSUFFICIENTFEE',
|
|
0x43: 'CHECKPOINT',
|
|
// Internal codes (NOT FOR USE ON NETWORK)
|
|
0x100: 'INTERNAL',
|
|
0x101: 'HIGHFEE',
|
|
0x102: 'ALREADYKNOWN',
|
|
0x103: 'CONFLICT'
|
|
};
|
|
|
|
/**
|
|
* Mempool Packet
|
|
* @extends Packet
|
|
*/
|
|
|
|
class MempoolPacket extends Packet {
|
|
/**
|
|
* Create a `mempool` packet.
|
|
* @constructor
|
|
*/
|
|
|
|
constructor() {
|
|
super();
|
|
this.type = exports.types.MEMPOOL;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* FilterLoad Packet
|
|
* @extends Packet
|
|
*/
|
|
|
|
class FilterLoadPacket extends Packet {
|
|
/**
|
|
* Create a `filterload` packet.
|
|
* @constructor
|
|
* @param {BloomFilter|null} filter
|
|
*/
|
|
|
|
constructor(filter) {
|
|
super();
|
|
|
|
this.type = exports.types.FILTERLOAD;
|
|
|
|
this.filter = filter || new BloomFilter();
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return this.filter.getSize();
|
|
}
|
|
|
|
/**
|
|
* Serialize filterload packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
return this.filter.write(bw);
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.filter.read(br);
|
|
return this;
|
|
}
|
|
|
|
/**
|
|
* Ensure the filter is within the size limits.
|
|
* @returns {Boolean}
|
|
*/
|
|
|
|
isWithinConstraints() {
|
|
return this.filter.isWithinConstraints();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* FilterAdd Packet
|
|
* @extends Packet
|
|
* @property {Buffer} data
|
|
*/
|
|
|
|
class FilterAddPacket extends Packet {
|
|
/**
|
|
* Create a `filteradd` packet.
|
|
* @constructor
|
|
* @param {Buffer?} data
|
|
*/
|
|
|
|
constructor(data) {
|
|
super();
|
|
|
|
this.type = exports.types.FILTERADD;
|
|
|
|
this.data = data || DUMMY;
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return encoding.sizeVarBytes(this.data);
|
|
}
|
|
|
|
/**
|
|
* Serialize filteradd packet to writer.
|
|
* @returns {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
bw.writeVarBytes(this.data);
|
|
return bw;
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.data = br.readVarBytes();
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* FilterClear Packet
|
|
* @extends Packet
|
|
*/
|
|
|
|
class FilterClearPacket extends Packet {
|
|
/**
|
|
* Create a `filterclear` packet.
|
|
* @constructor
|
|
*/
|
|
|
|
constructor() {
|
|
super();
|
|
this.type = exports.types.FILTERCLEAR;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* MerkleBlock Packet
|
|
* @extends Packet
|
|
* @property {MerkleBlock} block
|
|
*/
|
|
|
|
class MerkleBlockPacket extends Packet {
|
|
/**
|
|
* Create a `merkleblock` packet.
|
|
* @constructor
|
|
* @param {MerkleBlock?} block
|
|
*/
|
|
|
|
constructor(block) {
|
|
super();
|
|
|
|
this.type = exports.types.MERKLEBLOCK;
|
|
|
|
this.block = block || new MerkleBlock();
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return this.block.getSize();
|
|
}
|
|
|
|
/**
|
|
* Serialize merkleblock packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
return this.block.write(bw);
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.block.read(br);
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* FeeFilter Packet
|
|
* @extends Packet
|
|
* @property {Rate} rate
|
|
*/
|
|
|
|
class FeeFilterPacket extends Packet {
|
|
/**
|
|
* Create a `feefilter` packet.
|
|
* @constructor
|
|
* @param {Rate?} rate
|
|
*/
|
|
|
|
constructor(rate) {
|
|
super();
|
|
|
|
this.type = exports.types.FEEFILTER;
|
|
|
|
this.rate = rate || 0;
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return 8;
|
|
}
|
|
|
|
/**
|
|
* Serialize feefilter packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
bw.writeI64(this.rate);
|
|
return bw;
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.rate = br.readI64();
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* SendCmpct Packet
|
|
* @extends Packet
|
|
* @property {Number} mode
|
|
* @property {Number} version
|
|
*/
|
|
|
|
class SendCmpctPacket extends Packet {
|
|
/**
|
|
* Create a `sendcmpct` packet.
|
|
* @constructor
|
|
* @param {Number|null} mode
|
|
* @param {Number|null} version
|
|
*/
|
|
|
|
constructor(mode, version) {
|
|
super();
|
|
|
|
this.type = exports.types.SENDCMPCT;
|
|
|
|
this.mode = mode || 0;
|
|
this.version = version || 1;
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return 9;
|
|
}
|
|
|
|
/**
|
|
* Serialize sendcmpct packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
bw.writeU8(this.mode);
|
|
bw.writeU64(this.version);
|
|
return bw;
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.mode = br.readU8();
|
|
this.version = br.readU64();
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* CmpctBlock Packet
|
|
* @extends Packet
|
|
* @property {Block} block
|
|
*/
|
|
|
|
class CmpctBlockPacket extends Packet {
|
|
/**
|
|
* Create a `cmpctblock` packet.
|
|
* @constructor
|
|
* @param {Block|null} block
|
|
*/
|
|
|
|
constructor(block) {
|
|
super();
|
|
|
|
this.type = exports.types.CMPCTBLOCK;
|
|
|
|
/** @type {Block|bip152.CompactBlock} */
|
|
this.block = block || new bip152.CompactBlock();
|
|
}
|
|
|
|
/**
|
|
* Serialize cmpctblock packet.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return this.block.getSize();
|
|
}
|
|
|
|
/**
|
|
* Serialize cmpctblock packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
return this.block.write(bw);
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.block.read(br);
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* GetBlockTxn Packet
|
|
* @extends Packet
|
|
* @property {bip152.TXRequest} request
|
|
*/
|
|
|
|
class GetBlockTxnPacket extends Packet {
|
|
/**
|
|
* Create a `getblocktxn` packet.
|
|
* @constructor
|
|
* @param {bip152.TXRequest?} [request]
|
|
*/
|
|
|
|
constructor(request) {
|
|
super();
|
|
|
|
this.type = exports.types.GETBLOCKTXN;
|
|
|
|
this.request = request || new bip152.TXRequest();
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return this.request.getSize();
|
|
}
|
|
|
|
/**
|
|
* Serialize getblocktxn packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
return this.request.write(bw);
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.request.read(br);
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* BlockTxn Packet
|
|
* @extends Packet
|
|
* @property {bip152.TXResponse} response
|
|
*/
|
|
|
|
class BlockTxnPacket extends Packet {
|
|
/**
|
|
* Create a `blocktxn` packet.
|
|
* @constructor
|
|
* @param {bip152.TXResponse?} [response]
|
|
*/
|
|
|
|
constructor(response) {
|
|
super();
|
|
|
|
this.type = exports.types.BLOCKTXN;
|
|
|
|
this.response = response || new bip152.TXResponse();
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return this.response.getSize();
|
|
}
|
|
|
|
/**
|
|
* Serialize blocktxn packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
return this.response.write(bw);
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.response.read(br);
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* GetProof Packet
|
|
* @extends Packet
|
|
* @property {Buffer} root
|
|
* @property {Buffer} key
|
|
*/
|
|
|
|
class GetProofPacket extends Packet {
|
|
/**
|
|
* Create a `getproof` packet.
|
|
* @constructor
|
|
* @param {Buffer?} [root]
|
|
* @param {Buffer?} [key]
|
|
*/
|
|
|
|
constructor(root, key) {
|
|
super();
|
|
|
|
this.type = exports.types.GETPROOF;
|
|
this.root = root || consensus.ZERO_HASH;
|
|
this.key = key || consensus.ZERO_HASH;
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return 64;
|
|
}
|
|
|
|
/**
|
|
* Serialize getproof packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
bw.writeHash(this.root);
|
|
bw.writeBytes(this.key);
|
|
return bw;
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.root = br.readHash();
|
|
this.key = br.readBytes(32);
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Proof Packet
|
|
* @extends Packet
|
|
* @property {Hash} hash
|
|
*/
|
|
|
|
class ProofPacket extends Packet {
|
|
/**
|
|
* Create a `proof` packet.
|
|
* @constructor
|
|
* @param {Buffer} [root]
|
|
* @param {Buffer} [key]
|
|
* @param {UrkelProof} [proof]
|
|
*/
|
|
|
|
constructor(root, key, proof) {
|
|
super();
|
|
|
|
this.type = exports.types.PROOF;
|
|
this.root = root || consensus.ZERO_HASH;
|
|
this.key = key || consensus.ZERO_HASH;
|
|
this.proof = proof || new UrkelProof();
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
let size = 64;
|
|
size += this.proof.getSize(blake2b, 256);
|
|
return size;
|
|
}
|
|
|
|
/**
|
|
* Serialize proof packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
bw.writeHash(this.root);
|
|
bw.writeBytes(this.key);
|
|
this.proof.writeBW(bw, blake2b, 256);
|
|
return bw;
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.root = br.readHash();
|
|
this.key = br.readBytes(32);
|
|
this.proof = UrkelProof.readBR(br, blake2b, 256);
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Claim Packet
|
|
* @extends Packet
|
|
*/
|
|
|
|
class ClaimPacket extends Packet {
|
|
/**
|
|
* Create a `proof` packet.
|
|
* @constructor
|
|
* @param {Claim?} [claim]
|
|
*/
|
|
|
|
constructor(claim) {
|
|
super();
|
|
|
|
this.type = exports.types.CLAIM;
|
|
this.claim = claim || new Claim();
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return this.claim.getSize();
|
|
}
|
|
|
|
/**
|
|
* Serialize proof packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
this.claim.write(bw);
|
|
return bw;
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.claim.read(br);
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Airdrop Packet
|
|
* @extends Packet
|
|
*/
|
|
|
|
class AirdropPacket extends Packet {
|
|
/**
|
|
* Create a `proof` packet.
|
|
* @constructor
|
|
* @param {AirdropProof?} [proof]
|
|
*/
|
|
|
|
constructor(proof) {
|
|
super();
|
|
|
|
this.type = exports.types.AIRDROP;
|
|
this.proof = proof || new AirdropProof();
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return this.proof.getSize();
|
|
}
|
|
|
|
/**
|
|
* Serialize proof packet to writer.
|
|
* @param {BufioWriter} bw
|
|
* @returns {BufioWriter}
|
|
*/
|
|
|
|
write(bw) {
|
|
this.proof.write(bw);
|
|
return bw;
|
|
}
|
|
|
|
/**
|
|
* Inject properties from buffer reader.
|
|
* @param {bio.BufferReader} br
|
|
*/
|
|
|
|
read(br) {
|
|
this.proof.read(br);
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Unknown Packet
|
|
* @extends Packet
|
|
* @property {String} cmd
|
|
* @property {Buffer} data
|
|
*/
|
|
|
|
class UnknownPacket extends Packet {
|
|
/**
|
|
* Create an unknown packet.
|
|
* @constructor
|
|
* @param {Number?} [type]
|
|
* @param {Buffer?} [data]
|
|
*/
|
|
|
|
constructor(type, data) {
|
|
super();
|
|
|
|
this.type = exports.types.UNKNOWN;
|
|
this.packetType = type || exports.types.UNKNOWN;
|
|
this.data = data || DUMMY;
|
|
}
|
|
|
|
get rawType() {
|
|
return this.packetType;
|
|
}
|
|
|
|
/**
|
|
* Get serialization size.
|
|
* @returns {Number}
|
|
*/
|
|
|
|
getSize() {
|
|
return this.data.length;
|
|
}
|
|
|
|
/**
|
|
* Serialize unknown packet to writer.
|
|
* @param {BufioWriter} bw
|
|
*/
|
|
|
|
write(bw) {
|
|
bw.writeBytes(this.data);
|
|
return bw;
|
|
}
|
|
|
|
/**
|
|
* Inject properties from serialized data.
|
|
* @param {bio.BufferReader} br
|
|
* @param {Number} type
|
|
*/
|
|
|
|
read(br, type) {
|
|
this.data = br.readBytes(br.getSize());
|
|
this.packetType = type;
|
|
return this;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Parse a payload.
|
|
* @param {Number} type
|
|
* @param {Buffer} data
|
|
* @returns {Packet}
|
|
*/
|
|
|
|
exports.decode = function decode(type, data) {
|
|
switch (type) {
|
|
case types.VERSION:
|
|
return VersionPacket.decode(data);
|
|
case types.VERACK:
|
|
return VerackPacket.decode(data);
|
|
case types.PING:
|
|
return PingPacket.decode(data);
|
|
case types.PONG:
|
|
return PongPacket.decode(data);
|
|
case types.GETADDR:
|
|
return GetAddrPacket.decode(data);
|
|
case types.ADDR:
|
|
return AddrPacket.decode(data);
|
|
case types.INV:
|
|
return InvPacket.decode(data);
|
|
case types.GETDATA:
|
|
return GetDataPacket.decode(data);
|
|
case types.NOTFOUND:
|
|
return NotFoundPacket.decode(data);
|
|
case types.GETBLOCKS:
|
|
return GetBlocksPacket.decode(data);
|
|
case types.GETHEADERS:
|
|
return GetHeadersPacket.decode(data);
|
|
case types.HEADERS:
|
|
return HeadersPacket.decode(data);
|
|
case types.SENDHEADERS:
|
|
return SendHeadersPacket.decode(data);
|
|
case types.BLOCK:
|
|
return BlockPacket.decode(data);
|
|
case types.TX:
|
|
return TXPacket.decode(data);
|
|
case types.REJECT:
|
|
return RejectPacket.decode(data);
|
|
case types.MEMPOOL:
|
|
return MempoolPacket.decode(data);
|
|
case types.FILTERLOAD:
|
|
return FilterLoadPacket.decode(data);
|
|
case types.FILTERADD:
|
|
return FilterAddPacket.decode(data);
|
|
case types.FILTERCLEAR:
|
|
return FilterClearPacket.decode(data);
|
|
case types.MERKLEBLOCK:
|
|
return MerkleBlockPacket.decode(data);
|
|
case types.FEEFILTER:
|
|
return FeeFilterPacket.decode(data);
|
|
case types.SENDCMPCT:
|
|
return SendCmpctPacket.decode(data);
|
|
case types.CMPCTBLOCK:
|
|
return CmpctBlockPacket.decode(data);
|
|
case types.GETBLOCKTXN:
|
|
return GetBlockTxnPacket.decode(data);
|
|
case types.BLOCKTXN:
|
|
return BlockTxnPacket.decode(data);
|
|
case types.GETPROOF:
|
|
return GetProofPacket.decode(data);
|
|
case types.PROOF:
|
|
return ProofPacket.decode(data);
|
|
case types.CLAIM:
|
|
return ClaimPacket.decode(data);
|
|
case types.AIRDROP:
|
|
return AirdropPacket.decode(data);
|
|
default:
|
|
return UnknownPacket.decode(data, type);
|
|
}
|
|
};
|
|
|
|
/*
|
|
* Expose
|
|
*/
|
|
|
|
exports.Packet = Packet;
|
|
exports.VersionPacket = VersionPacket;
|
|
exports.VerackPacket = VerackPacket;
|
|
exports.PingPacket = PingPacket;
|
|
exports.PongPacket = PongPacket;
|
|
exports.GetAddrPacket = GetAddrPacket;
|
|
exports.AddrPacket = AddrPacket;
|
|
exports.InvPacket = InvPacket;
|
|
exports.GetDataPacket = GetDataPacket;
|
|
exports.NotFoundPacket = NotFoundPacket;
|
|
exports.GetBlocksPacket = GetBlocksPacket;
|
|
exports.GetHeadersPacket = GetHeadersPacket;
|
|
exports.HeadersPacket = HeadersPacket;
|
|
exports.SendHeadersPacket = SendHeadersPacket;
|
|
exports.BlockPacket = BlockPacket;
|
|
exports.TXPacket = TXPacket;
|
|
exports.RejectPacket = RejectPacket;
|
|
exports.MempoolPacket = MempoolPacket;
|
|
exports.FilterLoadPacket = FilterLoadPacket;
|
|
exports.FilterAddPacket = FilterAddPacket;
|
|
exports.FilterClearPacket = FilterClearPacket;
|
|
exports.MerkleBlockPacket = MerkleBlockPacket;
|
|
exports.FeeFilterPacket = FeeFilterPacket;
|
|
exports.SendCmpctPacket = SendCmpctPacket;
|
|
exports.CmpctBlockPacket = CmpctBlockPacket;
|
|
exports.GetBlockTxnPacket = GetBlockTxnPacket;
|
|
exports.BlockTxnPacket = BlockTxnPacket;
|
|
exports.GetProofPacket = GetProofPacket;
|
|
exports.ProofPacket = ProofPacket;
|
|
exports.ClaimPacket = ClaimPacket;
|
|
exports.AirdropPacket = AirdropPacket;
|
|
exports.UnknownPacket = UnknownPacket;
|