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index.js
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executable file
·118 lines (104 loc) · 3.89 KB
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#!/usr/bin/env node
const path = require("path")
const fs = require("fs")
const http = require("http")
// spdy allows http2, while waiting express to support the http2 module
const https = process.env.NODE_ENV === "production"
? require("spdy") : require("https")
const express = require("express")
const getCerts = require(path.resolve(__dirname, "certs.js")).getCerts
/* CONFIGURE THE SERVER */
// SSL certificate
const createServer = (domain = "localhost") => {
// create a server with express
const app = express()
// add getCerts to app
app.getCerts = getCerts
// override the default express listen method to use our server
app.listen = async function(port = process.env.PORT ||
/* istanbul ignore next: cannot be tested on Travis */ 443) {
app.server = https.createServer(await getCerts(domain), app)
.listen(port)
console.info("Server running on port " + port + ".")
return app.server
}
// use gzip compression minify
if (process.env.NODE_ENV === "production") {
const compression = require("compression")
const minify = require("express-minify")
app.use(compression({ threshold: 1 }))
app.use(minify())
app.set("json spaces", 0)
}
/* SETUP USEFUL FUNCTIONS */
// redirect http to https, usage `app.redirect()`
app.redirect = function(
/* istanbul ignore next: cannot be tested on Travis */ httpPort = 80,
httpsPort = process.env.PORT || 443) {
app.http = http.createServer((req, res) => {
const reqHost = req.headers.host
? req.headers.host.replace(":" + httpPort, "")
: /* istanbul ignore next: cannot be tested */ "localhost"
res.writeHead(301, {
Location: "https://" + reqHost +
(httpsPort !== 443 ? ":" + httpsPort : "") + (req.url ||
/* istanbul ignore next: cannot be tested */ "")
})
res.end()
}).listen(httpPort)
console.info("http to https redirection active.")
}
// serve static content, usage `app.serve([path])`
app.serve = function(staticPath = process.cwd(), port = process.env.PORT ||
/* istanbul ignore next: cannot be tested on Travis */ 443) {
app.use(express.static(staticPath))
// redirect 404 to 404.html or to index.html
app.use((req, res) => {
if (!staticPath.startsWith("/"))
staticPath = process.cwd() + "/" + staticPath
const p404 = staticPath + "/404.html"
const index = staticPath + "/index.html"
// istanbul ignore else: not interesting
if (fs.existsSync(p404))
res.status(404).sendFile(p404)
else if (fs.existsSync(index))
res.status(404).sendFile(index)
else res.status(404).send(req.path + " not found.")
})
console.info("Serving static path: " + staticPath)
app.listen(port)
}
return app
}
/* MAIN */
// usage: `serve [<path>]` or `node index.js [<path>]`
// istanbul ignore if: cannot be tested
if (require.main === module) {
const app = createServer()
// retrieve the static path from the process argv or use the cwd
// 1st is node, 2nd is serve or index.js, 3rd (if exists) is the path
app.serve(process.argv.length === 3 ? process.argv[2] : process.cwd())
// redirect http to https (only if https port is the default one)
if (!process.env.PORT) app.redirect()
}
/* istanbul ignore next: cannot be tested */
process.on("uncaughtException", function(err) {
switch (err.errno) {
case "EACCES":
console.error(
"EACCES: run as administrator to use the default ports 443 and 80. " +
"You can also change port with: `PORT=4433 serve ~/myproj`.")
break
case "EADDRINUSE":
console.error("EADDRINUSE: another service on your machine is using " +
"the current port.\nStop it or change port with:" +
"`PORT=4433 serve ~/myproj`.")
break
default:
console.error("Unexpected error " + err.errno + ":\n\n" + err)
break
}
process.exit(1)
})
// export as module
module.exports = createServer