emailjs-tcp-socket
Version:
This shim brings the W3C Raw Socket API to node.js and Chromium. Its purpose is to enable apps to use the same api in Firefox OS, Chrome OS, and on the server.
173 lines (143 loc) • 15.4 kB
JavaScript
'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 _ramda = require('ramda');
var _tlsUtils = require('./tls-utils');
var _tlsUtils2 = _interopRequireDefault(_tlsUtils);
var _workerUtils = require('./worker-utils');
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"); } }
var TCPSocket = function () {
_createClass(TCPSocket, null, [{
key: 'open',
value: function open(host, port) {
var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
return new TCPSocket({ host: host, port: port, options: options });
}
}]);
function TCPSocket(_ref) {
var _this = this;
var host = _ref.host,
port = _ref.port,
options = _ref.options;
_classCallCheck(this, TCPSocket);
this.host = host;
this.port = port;
this.ssl = false;
this.bufferedAmount = 0;
this.readyState = 'connecting';
this.binaryType = (0, _ramda.propOr)('arraybuffer', 'binaryType')(options);
if (this.binaryType !== 'arraybuffer') {
throw new Error('Only arraybuffers are supported!');
}
this._ca = options.ca;
this._useTLS = (0, _ramda.propOr)(false, 'useSecureTransport')(options);
this._useSTARTTLS = false;
this._wsHost = (0, _ramda.pathOr)(window.location.origin, ['ws', 'url'])(options);
this._wsOptions = (0, _ramda.pathOr)({}, ['ws', 'options'])(options);
this._wsOptions.reconnection = this._wsOptions.reconnection || false;
this._wsOptions.multiplex = this._wsOptions.multiplex || false;
this._socket = io(this._wsHost, this._wsOptions);
this._socket.emit('open', { host: host, port: port }, function (proxyHostname) {
_this._proxyHostname = proxyHostname;
if (_this._useTLS) {
// the socket is up, do the tls handshake
(0, _tlsUtils2.default)(_this);
} else {
// socket is up and running
_this._emit('open', {
proxyHostname: _this._proxyHostname
});
}
_this._socket.on('data', function (buffer) {
if (_this._useTLS || _this._useSTARTTLS) {
// feed the data to the tls socket
if (_this._tlsWorker) {
_this._tlsWorker.postMessage((0, _workerUtils.createMessage)(_workerUtils.EVENT_INBOUND, buffer), [buffer]);
} else {
_this._tls.processInbound(buffer);
}
} else {
_this._emit('data', buffer);
}
});
_this._socket.on('error', function (message) {
_this._emit('error', new Error(message));
_this.close();
});
_this._socket.on('close', function () {
return _this.close();
});
});
}
_createClass(TCPSocket, [{
key: 'close',
value: function close() {
this.readyState = 'closing';
this._socket.emit('end');
this._socket.disconnect();
if (this._tlsWorker) {
this._tlsWorker.terminate();
}
this._emit('close');
}
}, {
key: 'send',
value: function send(buffer) {
if (this._useTLS || this._useSTARTTLS) {
// give buffer to forge to be prepared for tls
if (this._tlsWorker) {
this._tlsWorker.postMessage((0, _workerUtils.createMessage)(_workerUtils.EVENT_OUTBOUND, buffer), [buffer]);
} else {
this._tls.prepareOutbound(buffer);
}
return;
}
this._send(buffer);
}
}, {
key: '_send',
value: function _send(data) {
var _this2 = this;
this._socket.emit('data', data, function () {
return _this2._emit('drain');
});
}
}, {
key: 'upgradeToSecure',
value: function upgradeToSecure() {
if (this.ssl || this._useSTARTTLS) return;
this._useSTARTTLS = true;
(0, _tlsUtils2.default)(this);
}
}, {
key: '_emit',
value: function _emit(type, data) {
var target = this;
switch (type) {
case 'open':
this.readyState = 'open';
this.onopen && this.onopen({ target: target, type: type, data: data });
break;
case 'error':
this.onerror && this.onerror({ target: target, type: type, data: data });
break;
case 'data':
this.ondata && this.ondata({ target: target, type: type, data: data });
break;
case 'drain':
this.ondrain && this.ondrain({ target: target, type: type, data: data });
break;
case 'close':
this.readyState = 'closed';
this.onclose && this.onclose({ target: target, type: type, data: data });
break;
}
}
}]);
return TCPSocket;
}();
exports.default = TCPSocket;
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{ pathOr, propOr } from 'ramda'\nimport createTls from './tls-utils'\nimport {\n  EVENT_INBOUND, EVENT_OUTBOUND,\n  createMessage\n} from './worker-utils'\n\nexport default class TCPSocket {\n  static open (host, port, options = {}) {\n    return new TCPSocket({ host, port, options })\n  }\n\n  constructor ({ host, port, options }) {\n    this.host = host\n    this.port = port\n    this.ssl = false\n    this.bufferedAmount = 0\n    this.readyState = 'connecting'\n    this.binaryType = propOr('arraybuffer', 'binaryType')(options)\n\n    if (this.binaryType !== 'arraybuffer') {\n      throw new Error('Only arraybuffers are supported!')\n    }\n\n    this._ca = options.ca\n    this._useTLS = propOr(false, 'useSecureTransport')(options)\n    this._useSTARTTLS = false\n\n    this._wsHost = pathOr(window.location.origin, ['ws', 'url'])(options)\n    this._wsOptions = pathOr({}, ['ws', 'options'])(options)\n    this._wsOptions.reconnection = this._wsOptions.reconnection || false\n    this._wsOptions.multiplex = this._wsOptions.multiplex || false\n\n    this._socket = io(this._wsHost, this._wsOptions)\n    this._socket.emit('open', { host, port }, proxyHostname => {\n      this._proxyHostname = proxyHostname\n      if (this._useTLS) {\n        // the socket is up, do the tls handshake\n        createTls(this)\n      } else {\n        // socket is up and running\n        this._emit('open', {\n          proxyHostname: this._proxyHostname\n        })\n      }\n\n      this._socket.on('data', buffer => {\n        if (this._useTLS || this._useSTARTTLS) {\n          // feed the data to the tls socket\n          if (this._tlsWorker) {\n            this._tlsWorker.postMessage(createMessage(EVENT_INBOUND, buffer), [buffer])\n          } else {\n            this._tls.processInbound(buffer)\n          }\n        } else {\n          this._emit('data', buffer)\n        }\n      })\n\n      this._socket.on('error', message => {\n        this._emit('error', new Error(message))\n        this.close()\n      })\n\n      this._socket.on('close', () => this.close())\n    })\n  }\n\n  close () {\n    this.readyState = 'closing'\n\n    this._socket.emit('end')\n    this._socket.disconnect()\n\n    if (this._tlsWorker) {\n      this._tlsWorker.terminate()\n    }\n\n    this._emit('close')\n  }\n\n  send (buffer) {\n    if (this._useTLS || this._useSTARTTLS) {\n      // give buffer to forge to be prepared for tls\n      if (this._tlsWorker) {\n        this._tlsWorker.postMessage(createMessage(EVENT_OUTBOUND, buffer), [buffer])\n      } else {\n        this._tls.prepareOutbound(buffer)\n      }\n      return\n    }\n\n    this._send(buffer)\n  }\n\n  _send (data) {\n    this._socket.emit('data', data, () => this._emit('drain'))\n  }\n\n  upgradeToSecure () {\n    if (this.ssl || this._useSTARTTLS) return\n\n    this._useSTARTTLS = true\n    createTls(this)\n  }\n\n  _emit (type, data) {\n    const target = this\n    switch (type) {\n      case 'open':\n        this.readyState = 'open'\n        this.onopen && this.onopen({ target, type, data })\n        break\n      case 'error':\n        this.onerror && this.onerror({ target, type, data })\n        break\n      case 'data':\n        this.ondata && this.ondata({ target, type, data })\n        break\n      case 'drain':\n        this.ondrain && this.ondrain({ target, type, data })\n        break\n      case 'close':\n        this.readyState = 'closed'\n        this.onclose && this.onclose({ target, type, data })\n        break\n    }\n  }\n}\n"]}