dagcoin-core/lib/keyManager.js

Dagcoin Core

'use strict';

// My module

function KeyManager() {
	this.conf = require('byteballcore/conf.js');
	this.fs = require('fs');
	this.desktopApp = require('byteballcore/desktop_app.js');
	this.applicationDataDirectory = this.desktopApp.getAppDataDir();
	this.keyFileName = this.applicationDataDirectory + '/' + (this.conf.KEYS_FILENAME || 'keys.json');
}

KeyManager.prototype.read = function () {
	var self = this;

	return new Promise(function (resolve, reject) {
		try {
			self.fs.readFile(self.keyFileName, 'utf8', function (err, data) {
				if (err) {
					reject(err);
				} else {
					resolve(data);
				}
			});
		} catch (e) {
			reject(new Error('WHILE READING FROM FILE ' + self.keyFileName + ': ' + e.message));
		}
	});
};

KeyManager.prototype.write = function (keys) {
	var self = this;

	return new Promise(function (resolve, reject) {
		try {
			self.fs.writeFile(self.keyFileName, JSON.stringify(keys, null, '\t'), 'utf8', function (err) {
				if (err) {
					reject('COULD NOT WRITE THE KEY FILE: ' + err);
				} else {
					resolve(keys);
				}
			});
		} catch (e) {
			reject(new Error('WHILE WRITING ' + JSON.stringify(keys, null, '\t') + ' TO FILE ' + self.keyFileName + ': ' + e.message));
		}
	});
};

module.exports = KeyManager;