48 lines
1.3 KiB
JavaScript
48 lines
1.3 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 _ = bitcore.deps._;
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/**
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* @param {Object|Array=} - options - If options is an array will use as "inventory"
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* @param {Array=} options.inventory - An array of inventory items
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* @param {Number} options.magicNumber
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* @extends Message
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* @constructor
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*/
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function GetdataMessage(arg, options) {
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Message.call(this, arg, options);
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this.command = 'getdata';
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this.magicNumber = options.magicNumber;
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utils.checkInventory(arg);
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this.inventory = arg;
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}
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inherits(GetdataMessage, Message);
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GetdataMessage.prototype.setPayload = function(payload) {
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this.inventory = [];
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var parser = new BufferReader(payload);
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var count = parser.readVarintNum();
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for (var i = 0; i < count; i++) {
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var type = parser.readUInt32LE();
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var hash = parser.read(32);
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this.inventory.push({type: type, hash: hash});
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}
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utils.checkFinished(parser);
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};
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GetdataMessage.prototype.getPayload = function() {
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var bw = new BufferWriter();
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utils.writeInventory(this.inventory, bw);
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return bw.concat();
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};
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module.exports = GetdataMessage;
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