smartcard2/lib/Device.js

"use strict";

Object.defineProperty(exports, "__esModule", {
	value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _Card = require("./Card");

var _Card2 = _interopRequireDefault(_Card);

var _events = require("events");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var Device = function (_EventEmitter) {
	_inherits(Device, _EventEmitter);

	function Device(reader) {
		_classCallCheck(this, Device);

		var _this = _possibleConstructorReturn(this, (Device.__proto__ || Object.getPrototypeOf(Device)).call(this));

		_this.reader = reader;
		_this.name = reader.name;
		_this.card = null;

		var isCardInserted = function isCardInserted(changes, reader, status) {
			return changes & reader.SCARD_STATE_PRESENT && status.state & reader.SCARD_STATE_PRESENT;
		};

		var isCardRemoved = function isCardRemoved(changes, reader, status) {
			return changes & reader.SCARD_STATE_EMPTY && status.state & reader.SCARD_STATE_EMPTY;
		};

		var cardInserted = function cardInserted(reader, status) {
			reader.connect({ share_mode: 2 }, function (err, protocol) {
				if (err) {
					_this.emit("error", err);
				} else {
					_this.card = new _Card2.default(_this, status.atr, protocol);
					_this.emit("card-inserted", { device: _this, card: _this.card });
				}
			});
		};

		var cardRemoved = function cardRemoved(reader) {
			var name = reader.name;
			reader.disconnect(reader.SCARD_LEAVE_CARD, function (err) {
				if (err) {
					_this.emit("error", err);
				} else {
					_this.emit("card-removed", { name: name, card: _this.card });
					_this.card = null;
				}
			});
		};

		reader.on("status", function (status) {
			var changes = reader.state ^ status.state;
			if (changes) {
				if (isCardRemoved(changes, reader, status)) {
					cardRemoved(reader);
				} else if (isCardInserted(changes, reader, status)) {
					cardInserted(reader, status);
				}
			}
		});
		return _this;
	}

	_createClass(Device, [{
		key: "transmit",
		value: function transmit(data, res_len, protocol, cb) {
			this.reader.transmit(data, res_len, protocol, cb);
		}
	}, {
		key: "reconnect",
		value: function reconnect(cb) {
			var _this2 = this;

			if (cb) {
				this.reader.disconnect(this.reader.SCARD_RESET_CARD, function (err) {
					if (err) return cb(err);

					_this2.reader.connect({ share_mode: 2 }, cb);
				});
			} else {
				return new Promise(function (resolve, reject) {
					_this2.reader.disconnect(_this2.reader.SCARD_RESET_CARD, function (err) {
						if (err) return reject(err);

						_this2.reader.connect({ share_mode: 2 }, function (err, protocol) {
							if (err) return reject(err);
							resolve(protocol);
						});
					});
				});
			}
		}
	}, {
		key: "getName",
		value: function getName() {
			return this.name;
		}
	}, {
		key: "toString",
		value: function toString() {
			return "" + this.getName();
		}
	}]);

	return Device;
}(_events.EventEmitter);

exports.default = Device;