59 lines
1.5 KiB
JavaScript
59 lines
1.5 KiB
JavaScript
'use strict';
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var Message = require('../message');
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var inherits = require('util').inherits;
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var bitcore = require('bitcore');
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var utils = require('../utils');
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var BufferReader = bitcore.encoding.BufferReader;
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var BufferWriter = bitcore.encoding.BufferWriter;
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var magicNumber = bitcore.Networks.defaultNetwork.networkMagic.readUInt32LE(0);
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/**
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* @param {Object} - options
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* @param {Buffer} - options.payload
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* @param {Buffer} - options.signature
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* @extends Message
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* @constructor
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*/
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function AlertMessage(options) {
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if (!(this instanceof AlertMessage)) {
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return new AlertMessage(options);
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}
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if(!options) {
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options = {};
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}
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Message.call(this, options);
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this.magicNumber = magicNumber;
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this.command = 'alert';
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this.payload = options.payload || new Buffer(32);
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this.signature = options.signature || new Buffer(32);
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}
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inherits(AlertMessage, Message);
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AlertMessage.fromBuffer = function(payload) {
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var obj = {};
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var parser = new BufferReader(payload);
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obj.payload = parser.readVarLengthBuffer();
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obj.signature = parser.readVarLengthBuffer();
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utils.checkFinished(parser);
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return new AlertMessage(obj);
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};
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AlertMessage.prototype.getPayload = function() {
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var bw = new BufferWriter();
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bw.writeVarintNum(this.payload.length);
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bw.write(this.payload);
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bw.writeVarintNum(this.signature.length);
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bw.write(this.signature);
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return bw.concat();
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};
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module.exports = function(options) {
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magicNumber = options.magicNumber || magicNumber;
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return AlertMessage;
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};
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