goldilocks.js/app.js

63 lines
1.5 KiB
JavaScript

'use strict';
module.exports = function (opts) {
var finalhandler = require('finalhandler');
var serveStatic = require('serve-static');
var serveIndex = require('serve-index');
var serve = serveStatic(opts.public);
var index = serveIndex(opts.public);
var content = opts.content;
return function (req, res) {
if (content && '/' === req.url) {
// res.setHeader('Content-Type', 'application/octet-stream');
res.end(content);
return;
}
var done = finalhandler(req, res);
var livereload = '';
var addLen = 0;
if (opts.livereload) {
livereload = '<script src="//'
+ (res.getHeader('Host') || opts.servername).split(':')[0]
+ ':' + opts.lrPort + '/livereload.js?snipver=1"></script>';
addLen = livereload.length;
}
res.__write = res.write;
res.write = function (data, enc, cb) {
if (this.headersSent) {
this.__write(data, enc, cb);
return;
}
if (!/html/i.test(this.getHeader('Content-Type'))) {
this.__write(data, enc, cb);
return;
}
if (this.getHeader('Content-Length')) {
this.setHeader('Content-Length', this.getHeader('Content-Length') + addLen);
}
this.__write(livereload);
this.__write(data, enc, cb);
};
function serveStatic() {
serve(req, res, function (err) {
if (err) { return done(err); }
index(req, res, done);
});
}
if (opts.expressApp) {
opts.expressApp(req, res, serveStatic);
}
else {
serveStatic();
}
};
};