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update vhost example
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#!/usr/bin/env node
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'use strict';
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// This is an example for virtual hosting
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///////////////////
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// vhost example //
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///////////////////
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//
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// virtual hosting example
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//
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var email = 'john@example.com';
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// The prefix where sites go by name.
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// For example: whatever.com may live in /srv/www/whatever.com, thus /srv/www is our path
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var srv = '/srv/www/';
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var path = require('path');
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var fs = require('fs');
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var finalhandler = require('finalhandler');
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var serveStatic = require('serve-static');
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var path = require('path');
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// Allowed characters are a-z,0-9,.,-,_ with TLDs being alpha-only
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//var glx = require('greenlock-express')
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var glx = require('../').create({
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// Let's Encrypt v2 is ACME draft 11
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version: 'draft-11'
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version: 'draft-11' // Let's Encrypt v2 is ACME draft 11
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, server: 'https://acme-v02.api.letsencrypt.org/directory'
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// Note: If at first you don't succeed, stop and switch to staging
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, server: 'https://acme-v02.api.letsencrypt.org/directory' // If at first you don't succeed, stop and switch to staging
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// https://acme-staging-v02.api.letsencrypt.org/directory
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, approveDomains: function (opts, certs, cb) {
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// In this example the filesystem is our "database".
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// We check in /srv/www for whateve.com and if it exists, it's allowed
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, configDir: '~/.config/acme/' // You MUST have access to write to directory where certs
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// are saved. ex: /home/foouser/.config/acme
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, approveDomains: myApproveDomains // Greenlock's wraps around tls.SNICallback. Check the
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// domain name here and reject invalid ones
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// The domains being approved for the first time are listed in opts.domains
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, app: myVhostApp // Any node-style http app (i.e. express, koa, hapi, rill)
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// Certs being renewed are listed in certs.altnames
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if (certs) {
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opts.domains = certs.altnames;
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cb(null, { options: opts, certs: certs });
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return;
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}
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// SECURITY Greenlock validates opts.domains ahead-of-time
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var hostdir = path.join(srv, opts.domains[0]);
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// TODO could test for www/no-www both in directory and IP
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fs.readdir(hostdir, function (err, nodes) {
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var e;
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if (err || !nodes) {
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e = new Error("rejecting '" + opts.domains[0] + "' because '" + hostdir + "' could not be read");
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console.error(err);
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console.error(e);
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cb(e);
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return;
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}
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// TODO check for some sort of htaccess.json and use email in that
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// NOTE: you can also change other options such as `challengeType` and `challenge`
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// opts.challengeType = 'http-01';
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// opts.challenge = require('le-challenge-fs').create({});
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opts.email = email;
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opts.agreeTos = true;
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cb(null, { options: opts, certs: certs });
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});
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}
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// You MUST have access to write to directory where certs are saved
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// ex: /home/foouser/acme/etc
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, configDir: '~/.config/acme/'
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, app: function (req, res) {
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// SECURITY greenlock pre-sanitizes hostnames to prevent unauthorized fs access
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console.log(req.headers.host);
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var hostname = req.headers.host;
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var serve = serveStatic(path.join(srv, hostname), { redirect: true });
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serve(req, res, finalhandler(req, res));
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}
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// Get notified of important updates and help me make greenlock better
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, communityMember: true
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/* CHANGE TO A VALID EMAIL */
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, email:'jon@example.com' // Email for Let's Encrypt account and Greenlock Security
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, agreeTos: true // Accept Let's Encrypt ToS
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, communityMember: true // Join Greenlock to get important updates, no spam
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//, debug: true
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});
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var server = glx.listen(80, 443);
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server.on('listening', function () {
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console.info(server.type + " listening on", server.address());
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});
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// [SECURITY]
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// Since v2.4.0+ Greenlock proactively protects against
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// SQL injection and timing attacks by rejecting invalid domain names,
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// but it's up to you to make sure that you accept opts.domain BEFORE
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// an attempt is made to issue a certificate for it.
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function myApproveDomains(opts, certs, cb) {
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// In this example the filesystem is our "database".
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// We check in /srv/www/ for opts.domain (i.e. "example.com") and only proceed if it exists.
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console.log(opts.domain);
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// Check that the hosting domain exists on the file system.
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var hostdir = path.join(srv, opts.domain);
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fs.readdir(hostdir, function (err, nodes) {
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var e;
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if (err || !nodes) {
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e = new Error("rejecting '" + opts.domains[0] + "' because '" + hostdir + "' could not be read");
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console.error(e);
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console.error(err);
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cb(e);
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return;
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}
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// You could put a variety of configuration details alongside the vhost folder
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// For example, /srv/www/example.com.json could describe the following:
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// If you have multiple domains grouped together, you can list them on the same certificate
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// opts.domains = [ 'example.com', 'www.example.com', 'api.example.com', 'sso.example.com' ]
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// You can also change other options on-the-fly
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// (approveDomains is called after the in-memory certificates cache is checked, but before any ACME requests)
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// opts.email = "jon@example.com"
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// opts.agreeTos = true;
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// opts.challengeType = 'http-01';
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// opts.challenge = require('le-challenge-fs').create({});
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cb(null, { options: opts, certs: certs });
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});
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}
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// [SECURITY]
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// Since v2.4.0+ Greenlock Express will proactively protect against
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// SQL injection and timing attacks by rejecting invalid domain names
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// in Host headers.
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// It will also make them lowercase and protect against "domain fronting".
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// However, it's up to you to make sure you actually have a domain to serve :)
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var servers = {};
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function myVhostApp(req, res) {
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var hostname = req.headers.host;
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var srvpath = path.join(srv, hostname);
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console.log('vhost for', req.headers.host);
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if (!servers[hostname]) {
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try {
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fs.accessSync(srvpath);
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servers[hostname] = serveStatic(srvpath, { redirect: true });
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} catch(e) {
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finalhandler(req, res);
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}
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}
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servers[hostname](req, res, finalhandler(req, res));
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}
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