68 lines
2.0 KiB
JavaScript
68 lines
2.0 KiB
JavaScript
'use strict';
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var utils = require('./utils');
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function _log(debug) {
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if (debug) {
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var args = Array.prototype.slice.call(arguments);
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args.shift();
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args.unshift("[le/lib/middleware.js]");
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console.log.apply(console, args);
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}
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}
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module.exports.create = function (le) {
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if (!le.challenge || !le.challenge.get) {
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throw new Error("middleware requires challenge plugin with get method");
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}
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var log = le.log || _log;
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log(le.debug, "created middleware");
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return function (_app) {
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if (_app && 'function' !== typeof _app) {
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throw new Error("use le.middleware() or le.middleware(function (req, res) {})");
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}
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var prefix = le.acmeChallengePrefix || '/.well-known/acme-challenge/';
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return function (req, res, next) {
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if (0 !== req.url.indexOf(prefix)) {
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log(le.debug, "no match, skipping middleware");
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if ('function' === typeof _app) {
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_app(req, res, next);
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}
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else if ('function' === typeof next) {
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next();
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}
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else {
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res.statusCode = 500;
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res.end("[500] Developer Error: app.use('/', le.middleware()) or le.middleware(app)");
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}
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return;
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}
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log(le.debug, "this must be tinder, 'cuz it's a match!");
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var token = req.url.slice(prefix.length);
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var hostname = req.hostname || (req.headers.host || '').toLowerCase().replace(/:.*/, '');
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log(le.debug, "hostname", hostname, "token", token);
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var copy = utils.merge({ domains: [ hostname ] }, le);
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copy = utils.tplCopy(copy);
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// TODO tpl copy?
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le.challenge.get(copy, hostname, token, function (err, secret) {
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if (err || !token) {
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res.statusCode = 404;
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res.setHeader('Content-Type', 'application/json; charset=utf-8');
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res.end('{ "error": { "message": "Error: These aren\'t the tokens you\'re looking for. Move along." } }');
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return;
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}
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res.setHeader('Content-Type', 'text/plain; charset=utf-8');
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res.end(secret);
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});
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};
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};
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};
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