transport.js
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'use strict';
var debug = function() {};
if (process.env.NODE_ENV !== 'production') {
debug = require('debug')('sockjs-client:utils:transport');
}
module.exports = function(availableTransports) {
return {
filterToEnabled: function(transportsWhitelist, info) {
var transports = {
main: []
, facade: []
};
if (!transportsWhitelist) {
transportsWhitelist = [];
} else if (typeof transportsWhitelist === 'string') {
transportsWhitelist = [transportsWhitelist];
}
availableTransports.forEach(function(trans) {
if (!trans) {
return;
}
if (trans.transportName === 'websocket' && info.websocket === false) {
debug('disabled from server', 'websocket');
return;
}
if (transportsWhitelist.length &&
transportsWhitelist.indexOf(trans.transportName) === -1) {
debug('not in whitelist', trans.transportName);
return;
}
if (trans.enabled(info)) {
debug('enabled', trans.transportName);
transports.main.push(trans);
if (trans.facadeTransport) {
transports.facade.push(trans.facadeTransport);
}
} else {
debug('disabled', trans.transportName);
}
});
return transports;
}
};
};