greenlock-express.js/examples/production.js

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'use strict';
//
// My Secure Server
//
//var greenlock = require('greenlock-express')
var greenlock = require('../').create({
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// Let's Encrypt v2 is ACME draft 11
// Note: If at first you don't succeed, stop and switch to staging
// https://acme-staging-v02.api.letsencrypt.org/directory
server: 'https://acme-v02.api.letsencrypt.org/directory'
, version: 'draft-11'
// You MUST have write access to save certs
, configDir: '~/.config/acme/'
// The previous 'simple' example set these values statically,
// but this example uses approveDomains() to set them dynamically
//, email: 'none@see.note.above'
//, agreeTos: false
// approveDomains is the right place to check a database for
// email addresses with domains and agreements and such
, approveDomains: approveDomains
, app: require('./my-express-app.js')
// Get notified of important updates and help me make greenlock better
, communityMember: true
//, debug: true
});
var server = greenlock.listen(80, 443);
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//
// My Secure Database Check
//
function approveDomains(opts, certs, cb) {
// Only one domain is listed with *automatic* registration via SNI
// (it's an array because managed registration allows for multiple domains,
// which was the case in the simple example)
console.log(opts.domains);
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// The domains being approved for the first time are listed in opts.domains
// Certs being renewed are listed in certs.altnames
if (certs) {
opts.domains = [certs.subject].concat(certs.altnames);
}
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fooCheckDb(opts.domains, function (err, agree, email) {
if (err) { cb(err); return; }
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// Services SHOULD automatically accept the ToS and use YOUR email
// Clients MUST NOT accept the ToS without asking the user
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opts.agreeTos = agree;
opts.email = email;
// NOTE: you can also change other options such as `challengeType` and `challenge`
// (this would be helpful if you decided you wanted wildcard support as a domain altname)
// opts.challengeType = 'http-01';
// opts.challenge = require('le-challenge-fs').create({});
cb(null, { options: opts, certs: certs });
});
}
//
// My User / Domain Database
//
function fooCheckDb(domains, cb) {
// This is an oversimplified example of how we might implement a check in
// our database if we have different rules for different users and domains
var domains = [ 'example.com', 'www.example.com' ];
var userEmail = 'john.doe@example.com';
var userAgrees = true;
var passCheck = opts.domains.every(function (domain) {
return -1 !== domains.indexOf(domain);
});
if (!passCheck) {
cb(new Error('domain not allowed'));
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} else {
cb(null, userAgrees, userEmail);
}
}