162 lines
2.9 KiB
JavaScript
162 lines
2.9 KiB
JavaScript
/**
|
|
* Module dependencies.
|
|
*/
|
|
|
|
var parser = require('engine.io-parser');
|
|
var Emitter = require('component-emitter');
|
|
|
|
/**
|
|
* Module exports.
|
|
*/
|
|
|
|
module.exports = Transport;
|
|
|
|
/**
|
|
* Transport abstract constructor.
|
|
*
|
|
* @param {Object} options.
|
|
* @api private
|
|
*/
|
|
|
|
function Transport (opts) {
|
|
this.path = opts.path;
|
|
this.hostname = opts.hostname;
|
|
this.port = opts.port;
|
|
this.secure = opts.secure;
|
|
this.query = opts.query;
|
|
this.timestampParam = opts.timestampParam;
|
|
this.timestampRequests = opts.timestampRequests;
|
|
this.readyState = '';
|
|
this.agent = opts.agent || false;
|
|
this.socket = opts.socket;
|
|
this.enablesXDR = opts.enablesXDR;
|
|
this.withCredentials = opts.withCredentials;
|
|
|
|
// SSL options for Node.js client
|
|
this.pfx = opts.pfx;
|
|
this.key = opts.key;
|
|
this.passphrase = opts.passphrase;
|
|
this.cert = opts.cert;
|
|
this.ca = opts.ca;
|
|
this.ciphers = opts.ciphers;
|
|
this.rejectUnauthorized = opts.rejectUnauthorized;
|
|
this.forceNode = opts.forceNode;
|
|
|
|
// results of ReactNative environment detection
|
|
this.isReactNative = opts.isReactNative;
|
|
|
|
// other options for Node.js client
|
|
this.extraHeaders = opts.extraHeaders;
|
|
this.localAddress = opts.localAddress;
|
|
}
|
|
|
|
/**
|
|
* Mix in `Emitter`.
|
|
*/
|
|
|
|
Emitter(Transport.prototype);
|
|
|
|
/**
|
|
* Emits an error.
|
|
*
|
|
* @param {String} str
|
|
* @return {Transport} for chaining
|
|
* @api public
|
|
*/
|
|
|
|
Transport.prototype.onError = function (msg, desc) {
|
|
var err = new Error(msg);
|
|
err.type = 'TransportError';
|
|
err.description = desc;
|
|
this.emit('error', err);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Opens the transport.
|
|
*
|
|
* @api public
|
|
*/
|
|
|
|
Transport.prototype.open = function () {
|
|
if ('closed' === this.readyState || '' === this.readyState) {
|
|
this.readyState = 'opening';
|
|
this.doOpen();
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Closes the transport.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.close = function () {
|
|
if ('opening' === this.readyState || 'open' === this.readyState) {
|
|
this.doClose();
|
|
this.onClose();
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Sends multiple packets.
|
|
*
|
|
* @param {Array} packets
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.send = function (packets) {
|
|
if ('open' === this.readyState) {
|
|
this.write(packets);
|
|
} else {
|
|
throw new Error('Transport not open');
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Called upon open
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.onOpen = function () {
|
|
this.readyState = 'open';
|
|
this.writable = true;
|
|
this.emit('open');
|
|
};
|
|
|
|
/**
|
|
* Called with data.
|
|
*
|
|
* @param {String} data
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.onData = function (data) {
|
|
var packet = parser.decodePacket(data, this.socket.binaryType);
|
|
this.onPacket(packet);
|
|
};
|
|
|
|
/**
|
|
* Called with a decoded packet.
|
|
*/
|
|
|
|
Transport.prototype.onPacket = function (packet) {
|
|
this.emit('packet', packet);
|
|
};
|
|
|
|
/**
|
|
* Called upon close.
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
Transport.prototype.onClose = function () {
|
|
this.readyState = 'closed';
|
|
this.emit('close');
|
|
};
|