From 67fdec20726e48ba3a934cb25bb30d47ec4a4f29 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Yaroslav=20De=20La=20Pe=C3=B1a=20Smirnov?= Date: Wed, 29 Nov 2017 11:44:34 +0300 Subject: Initial commit, version 0.5.3 --- .../engine.io-client/lib/transports/index.js | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 node_modules/engine.io-client/lib/transports/index.js (limited to 'node_modules/engine.io-client/lib/transports/index.js') diff --git a/node_modules/engine.io-client/lib/transports/index.js b/node_modules/engine.io-client/lib/transports/index.js new file mode 100644 index 0000000..df68fb9 --- /dev/null +++ b/node_modules/engine.io-client/lib/transports/index.js @@ -0,0 +1,53 @@ +/** + * Module dependencies + */ + +var XMLHttpRequest = require('xmlhttprequest-ssl'); +var XHR = require('./polling-xhr'); +var JSONP = require('./polling-jsonp'); +var websocket = require('./websocket'); + +/** + * Export transports. + */ + +exports.polling = polling; +exports.websocket = websocket; + +/** + * Polling transport polymorphic constructor. + * Decides on xhr vs jsonp based on feature detection. + * + * @api private + */ + +function polling (opts) { + var xhr; + var xd = false; + var xs = false; + var jsonp = false !== opts.jsonp; + + if (global.location) { + var isSSL = 'https:' === location.protocol; + var port = location.port; + + // some user agents have empty `location.port` + if (!port) { + port = isSSL ? 443 : 80; + } + + xd = opts.hostname !== location.hostname || port !== opts.port; + xs = opts.secure !== isSSL; + } + + opts.xdomain = xd; + opts.xscheme = xs; + xhr = new XMLHttpRequest(opts); + + if ('open' in xhr && !opts.forceJSONP) { + return new XHR(opts); + } else { + if (!jsonp) throw new Error('JSONP disabled'); + return new JSONP(opts); + } +} -- cgit v1.2.3