48 lines
1.2 KiB
JavaScript
48 lines
1.2 KiB
JavaScript
'use strict';
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var imports = require('soop').imports();
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var parent = imports.parent || require('events').EventEmitter;
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var EventEmitter = require('events').EventEmitter;
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var dns = require('dns');
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function SeedList(options) {
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SeedList.super(this, arguments);
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this.options = options || {};
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this.sources = [
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'dnsseed.bluematt.me',
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'dnsseed.bitcoin.dashjr.org',
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'seed.bitcoin.sipa.be',
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'seed.bitcoinstats.com',
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'bitseed.xf2.org'
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];
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this.source = this.options.source || this.sources[0];
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this.seeds = [];
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this.find()
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};
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SeedList.parent = imports.parent || EventEmitter;
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SeedList.prototype.find = function() {
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var self = this;
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dns.resolve(self.source, function(err, seeds) {
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if (err) {
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var index = self.sources.indexOf(self.source);
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if (index !== -1) {
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index++;
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if (!self.sources[index]) {
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return self.emit('seedsNotFound');
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}
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else {
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self.source = self.sources[index];
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}
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self.find();
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}
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return self.emit('error', err);
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}
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self.seeds = self.seeds.concat(seeds);
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self.emit('seedsFound', seeds);
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});
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return self;
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};
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module.exports = require('soop')(SeedList);
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