817 lines
23 KiB
JavaScript
817 lines
23 KiB
JavaScript
"use strict";
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/*global Promise*/
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require("./lib/compat.js");
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// I hate this code so much.
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// Soooo many shims for backwards compatibility (some stuff dating back to v1)
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// v3 will be a clean break and I'll delete half of the code...
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var DAY = 24 * 60 * 60 * 1000;
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//var MIN = 60 * 1000;
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var ACME = require("acme-v2/compat").ACME;
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var pkg = require("./package.json");
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var util = require("util");
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function promisifyAllSelf(obj) {
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if (obj.__promisified) {
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return obj;
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}
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Object.keys(obj).forEach(function(key) {
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if ("function" === typeof obj[key] && !/Async$/.test(key)) {
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obj[key + "Async"] = util.promisify(obj[key]);
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}
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});
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obj.__promisified = true;
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return obj;
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}
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function promisifyAllStore(obj) {
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Object.keys(obj).forEach(function(key) {
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if ("function" !== typeof obj[key] || /Async$/.test(key)) {
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return;
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}
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var p;
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if (0 === obj[key].length || 1 === obj[key].length) {
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// wrap just in case it's synchronous (or improperly throws)
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p = function(opts) {
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return Promise.resolve().then(function() {
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return obj[key](opts);
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});
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};
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} else {
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p = util.promisify(obj[key]);
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}
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// internal backwards compat
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obj[key + "Async"] = p;
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});
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obj.__promisified = true;
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return obj;
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}
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var Greenlock = module.exports;
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Greenlock.Greenlock = Greenlock;
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Greenlock.LE = Greenlock;
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// in-process cache, shared between all instances
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var ipc = {};
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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("[gl/index.js]");
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console.log.apply(console, args);
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}
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}
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Greenlock.defaults = {
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productionServerUrl: "https://acme-v01.api.letsencrypt.org/directory",
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stagingServerUrl: "https://acme-staging.api.letsencrypt.org/directory",
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rsaKeySize: ACME.rsaKeySize || 2048,
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challengeType: ACME.challengeType || "http-01",
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challengeTypes: ACME.challengeTypes || ["http-01", "dns-01"],
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acmeChallengePrefix: ACME.acmeChallengePrefix
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};
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// backwards compat
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Object.keys(Greenlock.defaults).forEach(function(key) {
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Greenlock[key] = Greenlock.defaults[key];
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});
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// show all possible options
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var u; // undefined
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Greenlock._undefined = {
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acme: u,
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store: u,
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//, challenge: u
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challenges: u,
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sni: u,
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tlsOptions: u,
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register: u,
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check: u,
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renewWithin: u, // le-auto-sni and core
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//, renewBy: u // le-auto-sni
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acmeChallengePrefix: u,
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rsaKeySize: u,
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challengeType: u,
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server: u,
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version: u,
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agreeToTerms: u,
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_ipc: u,
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duplicate: u,
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_acmeUrls: u
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};
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Greenlock._undefine = function(gl) {
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Object.keys(Greenlock._undefined).forEach(function(key) {
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if (!(key in gl)) {
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gl[key] = u;
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}
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});
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return gl;
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};
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Greenlock.create = function(gl) {
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if (!gl.store) {
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console.warn(
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"Deprecation Notice: You're haven't chosen a storage strategy." +
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" The old default is 'le-store-certbot', but the new default will be 'greenlock-store-fs'." +
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" Please `npm install greenlock-store-fs@3` and explicitly set `{ store: require('greenlock-store-fs') }`."
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);
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gl.store = require("le-store-certbot").create({
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debug: gl.debug,
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configDir: gl.configDir,
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logsDir: gl.logsDir,
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webrootPath: gl.webrootPath
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});
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}
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gl.core = require("./lib/core");
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var log = gl.log || _log;
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if (!gl.challenges) {
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gl.challenges = {};
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}
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if (!gl.challenges["http-01"]) {
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gl.challenges["http-01"] = require("le-challenge-fs").create({
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debug: gl.debug,
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webrootPath: gl.webrootPath
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});
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}
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if (!gl.challenges["dns-01"]) {
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try {
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gl.challenges["dns-01"] = require("le-challenge-ddns").create({
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debug: gl.debug
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});
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} catch (e) {
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try {
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gl.challenges["dns-01"] = require("le-challenge-dns").create({
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debug: gl.debug
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});
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} catch (e) {
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// not yet implemented
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}
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}
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}
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gl = Greenlock._undefine(gl);
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gl.acmeChallengePrefix = Greenlock.acmeChallengePrefix;
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gl.rsaKeySize = gl.rsaKeySize || Greenlock.rsaKeySize;
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gl.challengeType = gl.challengeType || Greenlock.challengeType;
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gl._ipc = ipc;
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gl._communityPackage = gl._communityPackage || "greenlock.js";
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if ("greenlock.js" === gl._communityPackage) {
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gl._communityPackageVersion = pkg.version;
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} else {
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gl._communityPackageVersion =
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gl._communityPackageVersion || "greenlock.js-" + pkg.version;
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}
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gl.agreeToTerms =
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gl.agreeToTerms ||
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function(args, agreeCb) {
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agreeCb(
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new Error(
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"'agreeToTerms' was not supplied to Greenlock and 'agreeTos' was not supplied to Greenlock.register"
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)
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);
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};
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if (!gl.renewWithin) {
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gl.renewWithin = 14 * DAY;
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}
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// renewBy has a default in le-sni-auto
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///////////////////////////
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// BEGIN VERSION MADNESS //
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///////////////////////////
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gl.version = gl.version || "draft-11";
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gl.server = gl.server || "https://acme-v02.api.letsencrypt.org/directory";
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if (!gl.version) {
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//console.warn("Please specify version: 'v01' (Let's Encrypt v1) or 'draft-12' (Let's Encrypt v2 / ACME draft 12)");
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console.warn("");
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console.warn("");
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console.warn("");
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console.warn("==========================================================");
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console.warn("== greenlock.js (v2.2.0+) ==");
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console.warn("==========================================================");
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console.warn("");
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console.warn("Please specify 'version' option:");
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console.warn("");
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console.warn(" 'draft-12' for Let's Encrypt v2 and ACME draft 12");
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console.warn(" ('v02' is an alias of 'draft-12'");
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console.warn("");
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console.warn("or");
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console.warn("");
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console.warn(" 'v01' for Let's Encrypt v1 (deprecated)");
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console.warn(
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" (also 'npm install --save le-acme-core' as this legacy dependency will soon be removed)"
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);
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console.warn("");
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console.warn("This will be required in versions v2.3+");
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console.warn("");
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console.warn("");
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} else if ("v02" === gl.version) {
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gl.version = "draft-11";
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} else if ("draft-12" === gl.version) {
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gl.version = "draft-11";
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} else if ("draft-11" === gl.version) {
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// no-op
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} else if ("v01" !== gl.version) {
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throw new Error("Unrecognized version '" + gl.version + "'");
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}
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if (!gl.server) {
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throw new Error(
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"opts.server must specify an ACME directory URL, such as 'https://acme-staging-v02.api.letsencrypt.org/directory'"
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);
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}
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if ("staging" === gl.server || "production" === gl.server) {
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if ("staging" === gl.server) {
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gl.server = "https://acme-staging.api.letsencrypt.org/directory";
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gl.version = "v01";
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gl._deprecatedServerName = "staging";
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} else if ("production" === gl.server) {
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gl.server = "https://acme-v01.api.letsencrypt.org/directory";
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gl.version = "v01";
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gl._deprecatedServerName = "production";
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}
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console.warn("");
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console.warn("");
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console.warn("=== WARNING ===");
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console.warn("");
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console.warn(
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"Due to versioning issues the '" +
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gl._deprecatedServerName +
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"' option is deprecated."
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);
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console.warn("Please specify the full url and version.");
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console.warn("");
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console.warn("For APIs add:");
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console.warn('\t, "version": "' + gl.version + '"');
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console.warn('\t, "server": "' + gl.server + '"');
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console.warn("");
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console.warn("For the CLI add:");
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console.warn("\t--acme-url '" + gl.server + "' \\");
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console.warn("\t--acme-version '" + gl.version + "' \\");
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console.warn("");
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console.warn("");
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}
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function loadLeV01() {
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console.warn("");
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console.warn("=== WARNING ===");
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console.warn("");
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console.warn("Let's Encrypt v1 is deprecated.");
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console.warn("Please update to Let's Encrypt v2 (ACME draft 12)");
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console.warn("");
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try {
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return require("le-acme-core").ACME;
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} catch (e) {
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console.error("");
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console.error("=== Error (easy-to-fix) ===");
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console.error("");
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console.error(
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"Hey, this isn't a big deal, but you need to manually add v1 support:"
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);
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console.error("");
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console.error(" npm install --save le-acme-core");
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console.error("");
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console.error(
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"Just run that real quick, restart, and everything will work great."
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);
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console.error("");
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console.error("");
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process.exit(e.code || 13);
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}
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}
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if (
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-1 !==
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[
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"https://acme-v02.api.letsencrypt.org/directory",
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"https://acme-staging-v02.api.letsencrypt.org/directory"
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].indexOf(gl.server)
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) {
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if ("draft-11" !== gl.version) {
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console.warn(
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"Detected Let's Encrypt v02 URL. Changing version to draft-12."
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);
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gl.version = "draft-11";
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}
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} else if (
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-1 !==
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[
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"https://acme-v01.api.letsencrypt.org/directory",
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"https://acme-staging.api.letsencrypt.org/directory"
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].indexOf(gl.server) ||
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"v01" === gl.version
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) {
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if ("v01" !== gl.version) {
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console.warn(
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"Detected Let's Encrypt v01 URL (deprecated). Changing version to v01."
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);
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gl.version = "v01";
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}
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}
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if ("v01" === gl.version) {
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ACME = loadLeV01();
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}
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/////////////////////////
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// END VERSION MADNESS //
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/////////////////////////
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gl.acme =
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gl.acme ||
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ACME.create({
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debug: gl.debug,
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skipChallengeTest: gl.skipChallengeTest,
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skipDryRun: gl.skipDryRun
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});
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if (gl.acme.create) {
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gl.acme = gl.acme.create(gl);
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}
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gl.acme = promisifyAllSelf(gl.acme);
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gl._acmeOpts =
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(gl.acme.getOptions && gl.acme.getOptions()) || gl.acme.options || {};
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Object.keys(gl._acmeOpts).forEach(function(key) {
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if (!(key in gl)) {
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gl[key] = gl._acmeOpts[key];
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}
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});
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try {
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if (gl.store.create) {
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gl.store = gl.store.create(gl);
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}
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gl.store = promisifyAllSelf(gl.store);
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gl.store.accounts = promisifyAllStore(gl.store.accounts);
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gl.store.certificates = promisifyAllStore(gl.store.certificates);
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gl._storeOpts =
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(gl.store.getOptions && gl.store.getOptions()) || gl.store.options || {};
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} catch (e) {
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console.error(e);
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console.error(
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"\nPROBABLE CAUSE:\n" +
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"\tYour greenlock-store module should have a create function and return { options, accounts, certificates }\n"
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);
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process.exit(18);
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return;
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}
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Object.keys(gl._storeOpts).forEach(function(key) {
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if (!(key in gl)) {
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gl[key] = gl._storeOpts[key];
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}
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});
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//
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// Backwards compat for <= v2.1.7
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//
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if (gl.challenge) {
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console.warn(
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"Deprecated use of gl.challenge. Use gl.challenges['" +
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Greenlock.challengeType +
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"'] instead."
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);
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gl.challenges[gl.challengeType] = gl.challenge;
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gl.challenge = undefined;
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}
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Object.keys(gl.challenges || {}).forEach(function(challengeType) {
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var challenger = gl.challenges[challengeType];
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if (challenger.create) {
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challenger = gl.challenges[challengeType] = challenger.create(gl);
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}
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challenger = gl.challenges[challengeType] = promisifyAllSelf(challenger);
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gl["_challengeOpts_" + challengeType] =
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(challenger.getOptions && challenger.getOptions()) ||
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challenger.options ||
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{};
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Object.keys(gl["_challengeOpts_" + challengeType]).forEach(function(key) {
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if (!(key in gl)) {
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gl[key] = gl["_challengeOpts_" + challengeType][key];
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}
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});
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// TODO wrap these here and now with tplCopy?
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if (!challenger.set || ![5, 2, 1].includes(challenger.set.length)) {
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throw new Error(
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"gl.challenges[" +
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challengeType +
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"].set receives the wrong number of arguments." +
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" You must define setChallenge as function (opts) { return Promise.resolve(); }"
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);
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}
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if (challenger.get && ![4, 2, 1].includes(challenger.get.length)) {
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throw new Error(
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"gl.challenges[" +
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challengeType +
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"].get receives the wrong number of arguments." +
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" You must define getChallenge as function (opts) { return Promise.resolve(); }"
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);
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}
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if (!challenger.remove || ![4, 2, 1].includes(challenger.remove.length)) {
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throw new Error(
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"gl.challenges[" +
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challengeType +
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"].remove receives the wrong number of arguments." +
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" You must define removeChallenge as function (opts) { return Promise.resolve(); }"
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);
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}
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/*
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if (!gl._challengeWarn && (!challenger.loopback || 4 !== challenger.loopback.length)) {
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gl._challengeWarn = true;
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console.warn("gl.challenges[" + challengeType + "].loopback should be defined as function (opts, domain, token, cb) { ... } and should prove (by external means) that the ACME server challenge '" + challengeType + "' will succeed");
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}
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else if (!gl._challengeWarn && (!challenger.test || 5 !== challenger.test.length)) {
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gl._challengeWarn = true;
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console.warn("gl.challenges[" + challengeType + "].test should be defined as function (opts, domain, token, keyAuthorization, cb) { ... } and should prove (by external means) that the ACME server challenge '" + challengeType + "' will succeed");
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}
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*/
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});
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gl.sni = gl.sni || null;
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gl.tlsOptions = gl.tlsOptions || gl.httpsOptions || {};
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// Workaround for https://github.com/nodejs/node/issues/22389
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gl._updateServernames = function(cert) {
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if (!gl._certnames) {
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gl._certnames = {};
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}
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// Note: Any given domain could exist on multiple certs
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// (especially during renewal where some may be added)
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// hence we use a separate object for each domain and list each domain on it
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// to get the minimal full set associated with each cert and domain
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var allDomains = [cert.subject].concat(cert.altnames.slice(0));
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allDomains.forEach(function(name) {
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name = name.toLowerCase();
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if (!gl._certnames[name]) {
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gl._certnames[name] = {};
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}
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allDomains.forEach(function(name2) {
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name2 = name2.toLowerCase();
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gl._certnames[name][name2] = true;
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});
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});
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};
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gl._checkServername = function(safeHost, servername) {
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// odd, but acceptable
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if (!safeHost || !servername) {
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return true;
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}
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if (safeHost === servername) {
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return true;
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}
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// connection established with servername and session is re-used for allowed name
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if (gl._certnames[servername] && gl._certnames[servername][safeHost]) {
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return true;
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}
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return false;
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};
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if (!gl.tlsOptions.SNICallback) {
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if (!gl.getCertificatesAsync && !gl.getCertificates) {
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if (Array.isArray(gl.approveDomains)) {
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gl.approvedDomains = gl.approveDomains;
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gl.approveDomains = null;
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}
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if (!gl.approveDomains) {
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gl.approveDomains = function(lexOpts, cb) {
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var err;
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var emsg;
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if (!gl.email) {
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throw new Error(
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"le-sni-auto is not properly configured. Missing email"
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);
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}
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if (!gl.agreeTos) {
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throw new Error(
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"le-sni-auto is not properly configured. Missing agreeTos"
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);
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}
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if (!/[a-z]/i.test(lexOpts.domain)) {
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cb(new Error("le-sni-auto does not allow IP addresses in SNI"));
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return;
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}
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if (!Array.isArray(gl.approvedDomains)) {
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// The acme-v2 package uses pre-flight test challenges to
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// verify that each requested domain is hosted by the server
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// these checks are sufficient for most use cases
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return cb(null, lexOpts);
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}
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if (
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lexOpts.domains.every(function(domain) {
|
|
return -1 !== gl.approvedDomains.indexOf(domain);
|
|
})
|
|
) {
|
|
// commented this out because people expect to be able to edit the list of domains
|
|
// lexOpts.domains = gl.approvedDomains.slice(0);
|
|
lexOpts.email = gl.email;
|
|
lexOpts.agreeTos = gl.agreeTos;
|
|
lexOpts.communityMember = gl.communityMember;
|
|
lexOpts.telemetry = gl.telemetry;
|
|
return cb(null, lexOpts);
|
|
}
|
|
|
|
emsg =
|
|
"tls SNI for '" +
|
|
lexOpts.domains.join(",") +
|
|
"' rejected: not in list '" +
|
|
gl.approvedDomains +
|
|
"'";
|
|
log(gl.debug, emsg, lexOpts.domains, gl.approvedDomains);
|
|
err = new Error(emsg);
|
|
err.code = "E_REJECT_SNI";
|
|
cb(err);
|
|
};
|
|
}
|
|
|
|
gl.getCertificates = function(domain, certs, cb) {
|
|
// certs come from current in-memory cache, not lookup
|
|
log(
|
|
gl.debug,
|
|
"gl.getCertificates called for",
|
|
domain,
|
|
"with certs for",
|
|
(certs && certs.altnames) || "NONE"
|
|
);
|
|
var opts = {
|
|
domain: domain,
|
|
domains: (certs && certs.altnames) || [domain],
|
|
certs: certs,
|
|
certificate: {},
|
|
account: {}
|
|
};
|
|
opts.wildname =
|
|
"*." +
|
|
(domain || "")
|
|
.split(".")
|
|
.slice(1)
|
|
.join(".");
|
|
|
|
function cb2(results) {
|
|
log(
|
|
gl.debug,
|
|
"gl.approveDomains called with certs for",
|
|
(results.certs && results.certs.altnames) || "NONE",
|
|
"and options:"
|
|
);
|
|
log(gl.debug, results.options || results);
|
|
var err;
|
|
if (!results) {
|
|
err = new Error("E_REJECT_SNI");
|
|
err.code = "E_REJECT_SNI";
|
|
eb2(err);
|
|
return;
|
|
}
|
|
|
|
var options = results.options || results;
|
|
if (opts !== options) {
|
|
Object.keys(options).forEach(function(key) {
|
|
if ("undefined" !== typeof options[key] && "domain" !== key) {
|
|
opts[key] = options[key];
|
|
}
|
|
});
|
|
options = opts;
|
|
}
|
|
if (Array.isArray(options.altnames) && options.altnames.length) {
|
|
options.domains = options.altnames;
|
|
}
|
|
options.altnames = options.domains;
|
|
// just in case we get a completely different object from the one we originally created
|
|
if (!options.account) {
|
|
options.account = {};
|
|
}
|
|
if (!options.certificate) {
|
|
options.certificate = {};
|
|
}
|
|
if (results.certs) {
|
|
log(gl.debug, "gl renewing");
|
|
return gl.core.certificates.renewAsync(options, results.certs).then(
|
|
function(certs) {
|
|
// Workaround for https://github.com/nodejs/node/issues/22389
|
|
gl._updateServernames(certs);
|
|
cb(null, certs);
|
|
},
|
|
function(e) {
|
|
console.debug(
|
|
"Error renewing certificate for '" + domain + "':"
|
|
);
|
|
console.debug(e);
|
|
console.error("");
|
|
cb(e);
|
|
}
|
|
);
|
|
} else {
|
|
log(gl.debug, "gl getting from disk or registering new");
|
|
return gl.core.certificates.getAsync(options).then(
|
|
function(certs) {
|
|
// Workaround for https://github.com/nodejs/node/issues/22389
|
|
gl._updateServernames(certs);
|
|
cb(null, certs);
|
|
},
|
|
function(e) {
|
|
console.debug(
|
|
"Error loading/registering certificate for '" + domain + "':"
|
|
);
|
|
console.debug(e);
|
|
console.error("");
|
|
cb(e);
|
|
}
|
|
);
|
|
}
|
|
}
|
|
function eb2(_err) {
|
|
if (false !== gl.logRejectedDomains) {
|
|
console.error(
|
|
"[Error] approveDomains rejected tls sni '" + domain + "'"
|
|
);
|
|
console.error(
|
|
"[Error] (see https://git.coolaj86.com/coolaj86/greenlock.js/issues/11)"
|
|
);
|
|
if ("E_REJECT_SNI" !== _err.code) {
|
|
console.error("[Error] This is the rejection message:");
|
|
console.error(_err.message);
|
|
}
|
|
console.error("");
|
|
}
|
|
cb(_err);
|
|
return;
|
|
}
|
|
function mb2(_err, results) {
|
|
if (_err) {
|
|
eb2(_err);
|
|
return;
|
|
}
|
|
cb2(results);
|
|
}
|
|
|
|
try {
|
|
if (1 === gl.approveDomains.length) {
|
|
Promise.resolve(gl.approveDomains(opts))
|
|
.then(cb2)
|
|
.catch(eb2);
|
|
} else if (2 === gl.approveDomains.length) {
|
|
gl.approveDomains(opts, mb2);
|
|
} else {
|
|
gl.approveDomains(opts, certs, mb2);
|
|
}
|
|
} catch (e) {
|
|
console.error("[ERROR] Something went wrong in approveDomains:");
|
|
console.error(e);
|
|
console.error(
|
|
"BUT WAIT! Good news: It's probably your fault, so you can probably fix it."
|
|
);
|
|
}
|
|
};
|
|
}
|
|
gl.sni = gl.sni || require("le-sni-auto");
|
|
if (gl.sni.create) {
|
|
gl.sni = gl.sni.create(gl);
|
|
}
|
|
gl.tlsOptions.SNICallback = function(_domain, cb) {
|
|
// format and (lightly) sanitize sni so that users can be naive
|
|
// and not have to worry about SQL injection or fs discovery
|
|
var domain = (_domain || "").toLowerCase();
|
|
// hostname labels allow a-z, 0-9, -, and are separated by dots
|
|
// _ is sometimes allowed
|
|
// REGEX // https://www.codeproject.com/Questions/1063023/alphanumeric-validation-javascript-without-regex
|
|
if (
|
|
!gl.__sni_allow_dangerous_names &&
|
|
(!/^[a-z0-9_\.\-]+$/i.test(domain) || -1 !== domain.indexOf(".."))
|
|
) {
|
|
log(gl.debug, "invalid sni '" + domain + "'");
|
|
cb(new Error("invalid SNI"));
|
|
return;
|
|
}
|
|
|
|
try {
|
|
gl.sni.sniCallback((gl.__sni_preserve_case && _domain) || domain, cb);
|
|
} catch (e) {
|
|
console.error("[ERROR] Something went wrong in the SNICallback:");
|
|
console.error(e);
|
|
cb(e);
|
|
}
|
|
};
|
|
}
|
|
|
|
// We want to move to using tlsOptions instead of httpsOptions, but we also need to make
|
|
// sure anything that uses this object will still work if looking for httpsOptions.
|
|
gl.httpsOptions = gl.tlsOptions;
|
|
|
|
if (gl.core.create) {
|
|
gl.core = gl.core.create(gl);
|
|
}
|
|
|
|
gl.renew = function(args, certs) {
|
|
return gl.core.certificates.renewAsync(args, certs);
|
|
};
|
|
|
|
gl.register = function(args) {
|
|
return gl.core.certificates.getAsync(args);
|
|
};
|
|
|
|
gl.check = function(args) {
|
|
// TODO must return email, domains, tos, pems
|
|
return gl.core.certificates.checkAsync(args);
|
|
};
|
|
|
|
gl.middleware = gl.middleware || require("./lib/middleware");
|
|
if (gl.middleware.create) {
|
|
gl.middleware = gl.middleware.create(gl);
|
|
}
|
|
|
|
//var SERVERNAME_RE = /^[a-z0-9\.\-_]+$/;
|
|
var SERVERNAME_G = /[^a-z0-9\.\-_]/;
|
|
gl.middleware.sanitizeHost = function(app) {
|
|
return function(req, res, next) {
|
|
function realNext() {
|
|
if ("function" === typeof app) {
|
|
app(req, res);
|
|
} else if ("function" === typeof next) {
|
|
next();
|
|
} else {
|
|
res.statusCode = 500;
|
|
res.end("Error: no middleware assigned");
|
|
}
|
|
}
|
|
// Get the host:port combo, if it exists
|
|
var host = (req.headers.host || "").split(":");
|
|
|
|
// if not, move along
|
|
if (!host[0]) {
|
|
realNext();
|
|
return;
|
|
}
|
|
|
|
// if so, remove non-allowed characters
|
|
var safehost = host[0].toLowerCase().replace(SERVERNAME_G, "");
|
|
|
|
// if there were unallowed characters, complain
|
|
if (
|
|
!gl.__sni_allow_dangerous_names &&
|
|
safehost.length !== host[0].length
|
|
) {
|
|
res.statusCode = 400;
|
|
res.end("Malformed HTTP Header: 'Host: " + host[0] + "'");
|
|
return;
|
|
}
|
|
|
|
// make lowercase
|
|
if (!gl.__sni_preserve_case) {
|
|
host[0] = safehost;
|
|
req.headers.host = host.join(":");
|
|
}
|
|
|
|
// Note: This sanitize function is also called on plain sockets, which don't need Domain Fronting checks
|
|
if (req.socket.encrypted && !gl.__sni_allow_domain_fronting) {
|
|
if (req.socket && "string" === typeof req.socket.servername) {
|
|
// Workaround for https://github.com/nodejs/node/issues/22389
|
|
if (
|
|
!gl._checkServername(safehost, req.socket.servername.toLowerCase())
|
|
) {
|
|
res.statusCode = 400;
|
|
res.setHeader("Content-Type", "text/html; charset=utf-8");
|
|
res.end(
|
|
"<h1>Domain Fronting Error</h1>" +
|
|
"<p>This connection was secured using TLS/SSL for '" +
|
|
req.socket.servername.toLowerCase() +
|
|
"'</p>" +
|
|
"<p>The HTTP request specified 'Host: " +
|
|
safehost +
|
|
"', which is (obviously) different.</p>" +
|
|
"<p>Because this looks like a domain fronting attack, the connection has been terminated.</p>"
|
|
);
|
|
return;
|
|
}
|
|
} else if (
|
|
safehost &&
|
|
!gl.middleware.sanitizeHost._skip_fronting_check
|
|
) {
|
|
// TODO how to handle wrapped sockets, as with telebit?
|
|
console.warn(
|
|
"\n\n\n[greenlock] WARN: no string for req.socket.servername," +
|
|
" skipping fronting check for '" +
|
|
safehost +
|
|
"'\n\n\n"
|
|
);
|
|
gl.middleware.sanitizeHost._skip_fronting_check = true;
|
|
}
|
|
}
|
|
|
|
// carry on
|
|
realNext();
|
|
};
|
|
};
|
|
gl.middleware.sanitizeHost._skip_fronting_check = false;
|
|
|
|
return gl;
|
|
};
|