walnut.js/lib/local-server.js

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'use strict';
// Note the odd use of callbacks (instead of promises) here
// It's to avoid loading bluebird yet (see sni-server.js for explanation)
module.exports.create = function (certPaths, port, serverCallback) {
function initServer(err, server) {
var app;
var promiseApp;
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if (err) {
serverCallback(err);
return;
}
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server.on('error', serverCallback);
server.listen(port, function () {
// is it even theoritically possible for
// a request to come in before this callback has fired?
// I'm assuming this event must fire before any request event
promiseApp = serverCallback(null, server);
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});
// Get up and listening as absolutely quickly as possible
server.on('request', function (req, res) {
// this is a hot piece of code, so we cache the result
if (app) {
app(req, res);
return;
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}
promiseApp.then(function (_app) {
app = _app;
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app(req, res);
});
});
}
if (certPaths) {
require('./sni-server').create(certPaths, port, initServer);
} else {
initServer(null, require('http').createServer());
}
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};