greenlock-express.js/index.js

142 lines
4.2 KiB
JavaScript

'use strict';
var PromiseA;
try {
PromiseA = require('bluebird');
} catch(e) {
PromiseA = global.Promise;
}
// opts.approveDomains(options, certs, cb)
module.exports.create = function (opts) {
// accept all defaults for greenlock.challenges, greenlock.store, greenlock.middleware
if (!opts._communityPackage) {
opts._communityPackage = 'greenlock-express.js';
}
function explainError(e) {
console.error('Error:' + e.message);
if ('EACCES' === e.errno) {
console.error("You don't have prmission to access '" + e.address + ":" + e.port + "'.");
console.error("You probably need to use \"sudo\" or \"sudo setcap 'cap_net_bind_service=+ep' $(which node)\"");
return;
}
if ('EADDRINUSE' === e.errno) {
console.error("'" + e.address + ":" + e.port + "' is already being used by some other program.");
console.error("You probably need to stop that program or restart your computer.");
return;
}
console.error(e.code + ": '" + e.address + ":" + e.port + "'");
}
function _listen(plainPort, plain) {
if (!plainPort) { plainPort = 80; }
var parts = String(plainPort).split(':');
var p = parts.pop();
var addr = parts.join(':').replace(/^\[/, '').replace(/\]$/, '');
var args = [];
var httpType;
var server;
var validHttpPort = (parseInt(p, 10) >= 0);
function tryPlain() {
server = require('http').createServer(
greenlock.middleware.sanitizeHost(greenlock.middleware(require('redirect-https')()))
);
httpType = 'http';
}
function trySecure() {
var https;
try {
https = require('spdy');
greenlock.tlsOptions.spdy = { protocols: [ 'h2', 'http/1.1' ], plain: false };
httpType = 'http2 (spdy/h2)';
} catch(e) {
https = require('https');
httpType = 'https';
}
server = https.createServer(
greenlock.tlsOptions
, greenlock.middleware.sanitizeHost(function (req, res) {
try {
greenlock.app(req, res);
} catch(e) {
console.error("[error] [greenlock.app] Your HTTP handler had an uncaught error:");
console.error(e);
}
})
);
server.type = httpType;
}
if (addr) { args[1] = addr; }
if (!validHttpPort && !/(\/)|(\\\\)/.test(p)) {
console.warn("'" + p + "' doesn't seem to be a valid port number, socket path, or pipe");
}
if (plain) { tryPlain(); } else { trySecure(); }
var promise = new PromiseA(function (resolve) {
args[0] = p;
args.push(function () { resolve(server); });
server.listen.apply(server, args).on('error', function (e) {
if (server.listenerCount('error') < 2) {
console.warn("Did not successfully create http server and bind to port '" + p + "':");
explainError(e);
process.exit(41);
}
});
});
promise.server = server;
return promise;
}
var greenlock = require('greenlock').create(opts);
opts.app = opts.app || function (req, res) {
res.end("Hello, World!\nWith Love,\nGreenlock for Express.js");
};
opts.listen = function (plainPort, port, fnPlain, fn) {
var promises = [];
var server;
var plainServer;
if (!fn) {
fn = fnPlain;
fnPlain = null;
}
promises.push(_listen(plainPort, true));
promises.push(_listen(port, false));
server = promises[1].server;
plainServer = promises[0].server;
PromiseA.all(promises).then(function () {
// Report plain http status
if ('function' === typeof fnPlain) {
fnPlain.apply(plainServer);
} else if (!fn && plainServer.listenerCount('listening') < 2) {
console.info('[:' + (plainServer.address().port || plainServer.address())
+ "] Handling ACME challenges and redirecting to " + server.type);
}
// Report h2/https status
if ('function' === typeof fn) {
fn.apply(server);
} else if (server.listenerCount('listening') < 2) {
console.info('[:' + (server.address().port || server.address()) + "] Serving " + server.type);
}
});
server.unencrypted = plainServer;
return server;
};
return greenlock;
};