91 lines
2.5 KiB
JavaScript
91 lines
2.5 KiB
JavaScript
'use strict';
|
|
|
|
var BufferReader = require('./encoding/bufferreader');
|
|
var BufferWriter = require('./encoding/bufferwriter');
|
|
|
|
var Blockheader = function Blockheader(version, prevblockidbuf, merklerootbuf, time, bits, nonce) {
|
|
if (!(this instanceof Blockheader))
|
|
return new Blockheader(version, prevblockidbuf, merklerootbuf, time, bits, nonce);
|
|
if (typeof version === 'number') {
|
|
this.set({
|
|
version: version,
|
|
prevblockidbuf: prevblockidbuf,
|
|
merklerootbuf: merklerootbuf,
|
|
time: time,
|
|
bits: bits,
|
|
nonce: nonce
|
|
});
|
|
} else if (Buffer.isBuffer(version)) {
|
|
var bhbuf = version;
|
|
this.fromBuffer(bhbuf);
|
|
} else if (version) {
|
|
var obj = version;
|
|
this.set(obj);
|
|
}
|
|
};
|
|
|
|
Blockheader.prototype.set = function(obj) {
|
|
this.version = typeof obj.version !== 'undefined' ? obj.version : this.version;
|
|
this.prevblockidbuf = obj.prevblockidbuf || this.prevblockidbuf;
|
|
this.merklerootbuf = obj.merklerootbuf || this.merklerootbuf;
|
|
this.time = typeof obj.time !== 'undefined' ? obj.time : this.time;
|
|
this.bits = typeof obj.bits !== 'undefined' ? obj.bits : this.bits;
|
|
this.nonce = typeof obj.nonce !== 'undefined' ? obj.nonce : this.nonce;
|
|
return this;
|
|
};
|
|
|
|
Blockheader.prototype.fromJSON = function(json) {
|
|
this.set({
|
|
version: json.version,
|
|
prevblockidbuf: new Buffer(json.prevblockidbuf, 'hex'),
|
|
merklerootbuf: new Buffer(json.merklerootbuf, 'hex'),
|
|
time: json.time,
|
|
bits: json.bits,
|
|
nonce: json.nonce
|
|
});
|
|
return this;
|
|
};
|
|
|
|
Blockheader.prototype.toJSON = function() {
|
|
return {
|
|
version: this.version,
|
|
prevblockidbuf: this.prevblockidbuf.toString('hex'),
|
|
merklerootbuf: this.merklerootbuf.toString('hex'),
|
|
time: this.time,
|
|
bits: this.bits,
|
|
nonce: this.nonce
|
|
};
|
|
};
|
|
|
|
Blockheader.prototype.fromBuffer = function(buf) {
|
|
return this.fromBufferReader(BufferReader(buf));
|
|
};
|
|
|
|
Blockheader.prototype.fromBufferReader = function(br) {
|
|
this.version = br.readUInt32LE();
|
|
this.prevblockidbuf = br.read(32);
|
|
this.merklerootbuf = br.read(32);
|
|
this.time = br.readUInt32LE();
|
|
this.bits = br.readUInt32LE();
|
|
this.nonce = br.readUInt32LE();
|
|
return this;
|
|
};
|
|
|
|
Blockheader.prototype.toBuffer = function() {
|
|
return this.toBufferWriter().concat();
|
|
};
|
|
|
|
Blockheader.prototype.toBufferWriter = function(bw) {
|
|
if (!bw)
|
|
bw = new BufferWriter();
|
|
bw.writeUInt32LE(this.version);
|
|
bw.write(this.prevblockidbuf);
|
|
bw.write(this.merklerootbuf);
|
|
bw.writeUInt32LE(this.time);
|
|
bw.writeUInt32LE(this.bits);
|
|
bw.writeUInt32LE(this.nonce);
|
|
return bw;
|
|
};
|
|
|
|
module.exports = Blockheader;
|