56 lines
1.6 KiB
JavaScript
56 lines
1.6 KiB
JavaScript
var imports = require('soop').imports();
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var parent = imports.parent || require('./util/VersionedData');
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function SIN(type, payload) {
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if (typeof type != 'number') {
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SIN.super(this, arguments);
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return;
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};
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this.data = new Buffer(1 + 1 + payload.length);
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this.__proto__ = this.encodings['binary'];
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this.prefix(0x0F); // SIN magic number, in numberspace
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this.type(type);
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this.payload(payload);
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};
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SIN.parent = parent;
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parent.applyEncodingsTo(SIN);
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SIN.SIN_PERSIST_MAINNET = 0x01; // associated with sacrifice TX
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SIN.SIN_PERSIST_TESTNET = 0x11; // associated with sacrifice TX
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SIN.SIN_EPHEM = 0x02; // generate off-net at any time
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// get or set the prefix data (the first byte of the address)
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SIN.prototype.prefix = function(num) {
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if(num || (num === 0)) {
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this.doAsBinary(function() {this.data.writeUInt8(num, 0);});
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return num;
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}
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return this.as('binary').readUInt8(0);
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};
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// get or set the SIN-type data (the second byte of the address)
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SIN.prototype.type = function(num) {
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if(num || (num === 0)) {
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this.doAsBinary(function() {this.data.writeUInt8(num, 1);});
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return num;
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}
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return this.as('binary').readUInt8(1);
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};
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// get or set the payload data (as a Buffer object)
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SIN.prototype.payload = function(data) {
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if(data) {
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this.doAsBinary(function() {data.copy(this.data, 2);});
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return data;
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}
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return this.as('binary').slice(1);
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};
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SIN.prototype.validate = function() {
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this.doAsBinary(function() {
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SIN.super(this, 'validate', arguments);
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if (this.data.length != 22) throw new Error('invalid data length');
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});
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};
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module.exports = require('soop')(SIN);
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