greenlock.js/index.js

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"use strict";
/*global Promise*/
require("./lib/compat.js");
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// I hate this code so much.
// Soooo many shims for backwards compatibility (some stuff dating back to v1)
// v3 will be a clean break and I'll delete half of the code...
var DAY = 24 * 60 * 60 * 1000;
//var MIN = 60 * 1000;
var ACME = require("acme-v2/compat").ACME;
var pkg = require("./package.json");
var util = require("util");
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function promisifyAllSelf(obj) {
if (obj.__promisified) {
return obj;
}
Object.keys(obj).forEach(function(key) {
if ("function" === typeof obj[key] && !/Async$/.test(key)) {
obj[key + "Async"] = util.promisify(obj[key]);
}
});
obj.__promisified = true;
return obj;
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}
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function promisifyAllStore(obj) {
Object.keys(obj).forEach(function(key) {
if ("function" !== typeof obj[key] || /Async$/.test(key)) {
return;
}
var p;
if (0 === obj[key].length || 1 === obj[key].length) {
// wrap just in case it's synchronous (or improperly throws)
p = function(opts) {
return Promise.resolve().then(function() {
return obj[key](opts);
});
};
} else {
p = util.promisify(obj[key]);
}
// internal backwards compat
obj[key + "Async"] = p;
});
obj.__promisified = true;
return obj;
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}
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var Greenlock = module.exports;
Greenlock.Greenlock = Greenlock;
Greenlock.LE = Greenlock;
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// in-process cache, shared between all instances
var ipc = {};
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function _log(debug) {
if (debug) {
var args = Array.prototype.slice.call(arguments);
args.shift();
args.unshift("[gl/index.js]");
console.log.apply(console, args);
}
}
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Greenlock.defaults = {
productionServerUrl: "https://acme-v01.api.letsencrypt.org/directory",
stagingServerUrl: "https://acme-staging.api.letsencrypt.org/directory",
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rsaKeySize: ACME.rsaKeySize || 2048,
challengeType: ACME.challengeType || "http-01",
challengeTypes: ACME.challengeTypes || ["http-01", "dns-01"],
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acmeChallengePrefix: ACME.acmeChallengePrefix
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};
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// backwards compat
Object.keys(Greenlock.defaults).forEach(function(key) {
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 = {
acme: u,
store: u,
//, challenge: u
challenges: u,
sni: u,
tlsOptions: u,
register: u,
check: u,
renewWithin: u, // le-auto-sni and core
//, renewBy: u // le-auto-sni
acmeChallengePrefix: u,
rsaKeySize: u,
challengeType: u,
server: u,
version: u,
agreeToTerms: u,
_ipc: u,
duplicate: u,
_acmeUrls: u
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};
Greenlock._undefine = function(gl) {
Object.keys(Greenlock._undefined).forEach(function(key) {
if (!(key in gl)) {
gl[key] = u;
}
});
return gl;
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};
Greenlock.create = function(gl) {
if (!gl.store) {
console.warn(
"Deprecation Notice: You're haven't chosen a storage strategy." +
" The old default is 'le-store-certbot', but the new default will be 'greenlock-store-fs'." +
" Please `npm install greenlock-store-fs@3` and explicitly set `{ store: require('greenlock-store-fs') }`."
);
gl.store = require("le-store-certbot").create({
debug: gl.debug,
configDir: gl.configDir,
logsDir: gl.logsDir,
webrootPath: gl.webrootPath
});
}
gl.core = require("./lib/core");
var log = gl.log || _log;
if (!gl.challenges) {
gl.challenges = {};
}
if (!gl.challenges["http-01"]) {
gl.challenges["http-01"] = require("le-challenge-fs").create({
debug: gl.debug,
webrootPath: gl.webrootPath
});
}
if (!gl.challenges["dns-01"]) {
try {
gl.challenges["dns-01"] = require("le-challenge-ddns").create({
debug: gl.debug
});
} catch (e) {
try {
gl.challenges["dns-01"] = require("le-challenge-dns").create({
debug: gl.debug
});
} catch (e) {
// not yet implemented
}
}
}
gl = Greenlock._undefine(gl);
gl.acmeChallengePrefix = Greenlock.acmeChallengePrefix;
gl.rsaKeySize = gl.rsaKeySize || Greenlock.rsaKeySize;
gl.challengeType = gl.challengeType || Greenlock.challengeType;
gl._ipc = ipc;
gl._communityPackage = gl._communityPackage || "greenlock.js";
if ("greenlock.js" === gl._communityPackage) {
gl._communityPackageVersion = pkg.version;
} else {
gl._communityPackageVersion =
gl._communityPackageVersion || "greenlock.js-" + pkg.version;
}
gl.agreeToTerms =
gl.agreeToTerms ||
function(args, agreeCb) {
agreeCb(
new Error(
"'agreeToTerms' was not supplied to Greenlock and 'agreeTos' was not supplied to Greenlock.register"
)
);
};
if (!gl.renewWithin) {
gl.renewWithin = 14 * DAY;
}
// renewBy has a default in le-sni-auto
///////////////////////////
// BEGIN VERSION MADNESS //
///////////////////////////
gl.version = gl.version || "draft-11";
gl.server = gl.server || "https://acme-v02.api.letsencrypt.org/directory";
if (!gl.version) {
//console.warn("Please specify version: 'v01' (Let's Encrypt v1) or 'draft-12' (Let's Encrypt v2 / ACME draft 12)");
console.warn("");
console.warn("");
console.warn("");
console.warn("==========================================================");
console.warn("== greenlock.js (v2.2.0+) ==");
console.warn("==========================================================");
console.warn("");
console.warn("Please specify 'version' option:");
console.warn("");
console.warn(" 'draft-12' for Let's Encrypt v2 and ACME draft 12");
console.warn(" ('v02' is an alias of 'draft-12'");
console.warn("");
console.warn("or");
console.warn("");
console.warn(" 'v01' for Let's Encrypt v1 (deprecated)");
console.warn(
" (also 'npm install --save le-acme-core' as this legacy dependency will soon be removed)"
);
console.warn("");
console.warn("This will be required in versions v2.3+");
console.warn("");
console.warn("");
} else if ("v02" === gl.version) {
gl.version = "draft-11";
} else if ("draft-12" === gl.version) {
gl.version = "draft-11";
} else if ("draft-11" === gl.version) {
// no-op
} else if ("v01" !== gl.version) {
throw new Error("Unrecognized version '" + gl.version + "'");
}
if (!gl.server) {
throw new Error(
"opts.server must specify an ACME directory URL, such as 'https://acme-staging-v02.api.letsencrypt.org/directory'"
);
}
if ("staging" === gl.server || "production" === gl.server) {
if ("staging" === gl.server) {
gl.server = "https://acme-staging.api.letsencrypt.org/directory";
gl.version = "v01";
gl._deprecatedServerName = "staging";
} else if ("production" === gl.server) {
gl.server = "https://acme-v01.api.letsencrypt.org/directory";
gl.version = "v01";
gl._deprecatedServerName = "production";
}
console.warn("");
console.warn("");
console.warn("=== WARNING ===");
console.warn("");
console.warn(
"Due to versioning issues the '" +
gl._deprecatedServerName +
"' option is deprecated."
);
console.warn("Please specify the full url and version.");
console.warn("");
console.warn("For APIs add:");
console.warn('\t, "version": "' + gl.version + '"');
console.warn('\t, "server": "' + gl.server + '"');
console.warn("");
console.warn("For the CLI add:");
console.warn("\t--acme-url '" + gl.server + "' \\");
console.warn("\t--acme-version '" + gl.version + "' \\");
console.warn("");
console.warn("");
}
function loadLeV01() {
console.warn("");
console.warn("=== WARNING ===");
console.warn("");
console.warn("Let's Encrypt v1 is deprecated.");
console.warn("Please update to Let's Encrypt v2 (ACME draft 12)");
console.warn("");
try {
return require("le-acme-core").ACME;
} catch (e) {
console.error("");
console.error("=== Error (easy-to-fix) ===");
console.error("");
console.error(
"Hey, this isn't a big deal, but you need to manually add v1 support:"
);
console.error("");
console.error(" npm install --save le-acme-core");
console.error("");
console.error(
"Just run that real quick, restart, and everything will work great."
);
console.error("");
console.error("");
process.exit(e.code || 13);
}
}
if (
-1 !==
[
"https://acme-v02.api.letsencrypt.org/directory",
"https://acme-staging-v02.api.letsencrypt.org/directory"
].indexOf(gl.server)
) {
if ("draft-11" !== gl.version) {
console.warn(
"Detected Let's Encrypt v02 URL. Changing version to draft-12."
);
gl.version = "draft-11";
}
} else if (
-1 !==
[
"https://acme-v01.api.letsencrypt.org/directory",
"https://acme-staging.api.letsencrypt.org/directory"
].indexOf(gl.server) ||
"v01" === gl.version
) {
if ("v01" !== gl.version) {
console.warn(
"Detected Let's Encrypt v01 URL (deprecated). Changing version to v01."
);
gl.version = "v01";
}
}
if ("v01" === gl.version) {
ACME = loadLeV01();
}
/////////////////////////
// END VERSION MADNESS //
/////////////////////////
gl.acme =
gl.acme ||
ACME.create({
debug: gl.debug,
skipChallengeTest: gl.skipChallengeTest,
skipDryRun: gl.skipDryRun
});
if (gl.acme.create) {
gl.acme = gl.acme.create(gl);
}
gl.acme = promisifyAllSelf(gl.acme);
gl._acmeOpts =
(gl.acme.getOptions && gl.acme.getOptions()) || gl.acme.options || {};
Object.keys(gl._acmeOpts).forEach(function(key) {
if (!(key in gl)) {
gl[key] = gl._acmeOpts[key];
}
});
try {
if (gl.store.create) {
gl.store = gl.store.create(gl);
}
gl.store = promisifyAllSelf(gl.store);
gl.store.accounts = promisifyAllStore(gl.store.accounts);
gl.store.certificates = promisifyAllStore(gl.store.certificates);
gl._storeOpts =
(gl.store.getOptions && gl.store.getOptions()) || gl.store.options || {};
} catch (e) {
console.error(e);
console.error(
"\nPROBABLE CAUSE:\n" +
"\tYour greenlock-store module should have a create function and return { options, accounts, certificates }\n"
);
process.exit(18);
return;
}
Object.keys(gl._storeOpts).forEach(function(key) {
if (!(key in gl)) {
gl[key] = gl._storeOpts[key];
}
});
//
// Backwards compat for <= v2.1.7
//
if (gl.challenge) {
console.warn(
"Deprecated use of gl.challenge. Use gl.challenges['" +
Greenlock.challengeType +
"'] instead."
);
gl.challenges[gl.challengeType] = gl.challenge;
gl.challenge = undefined;
}
Object.keys(gl.challenges || {}).forEach(function(challengeType) {
var challenger = gl.challenges[challengeType];
if (challenger.create) {
challenger = gl.challenges[challengeType] = challenger.create(gl);
}
challenger = gl.challenges[challengeType] = promisifyAllSelf(challenger);
gl["_challengeOpts_" + challengeType] =
(challenger.getOptions && challenger.getOptions()) ||
challenger.options ||
{};
Object.keys(gl["_challengeOpts_" + challengeType]).forEach(function(key) {
if (!(key in gl)) {
gl[key] = gl["_challengeOpts_" + challengeType][key];
}
});
// TODO wrap these here and now with tplCopy?
if (!challenger.set || ![5, 2, 1].includes(challenger.set.length)) {
throw new Error(
"gl.challenges[" +
challengeType +
"].set receives the wrong number of arguments." +
" You must define setChallenge as function (opts) { return Promise.resolve(); }"
);
}
if (challenger.get && ![4, 2, 1].includes(challenger.get.length)) {
throw new Error(
"gl.challenges[" +
challengeType +
"].get receives the wrong number of arguments." +
" You must define getChallenge as function (opts) { return Promise.resolve(); }"
);
}
if (!challenger.remove || ![4, 2, 1].includes(challenger.remove.length)) {
throw new Error(
"gl.challenges[" +
challengeType +
"].remove receives the wrong number of arguments." +
" You must define removeChallenge as function (opts) { return Promise.resolve(); }"
);
}
/*
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if (!gl._challengeWarn && (!challenger.loopback || 4 !== challenger.loopback.length)) {
gl._challengeWarn = true;
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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else if (!gl._challengeWarn && (!challenger.test || 5 !== challenger.test.length)) {
gl._challengeWarn = true;
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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*/
});
gl.sni = gl.sni || null;
gl.tlsOptions = gl.tlsOptions || gl.httpsOptions || {};
// Workaround for https://github.com/nodejs/node/issues/22389
gl._updateServernames = function(cert) {
if (!gl._certnames) {
gl._certnames = {};
}
// Note: Any given domain could exist on multiple certs
// (especially during renewal where some may be added)
// hence we use a separate object for each domain and list each domain on it
// to get the minimal full set associated with each cert and domain
var allDomains = [cert.subject].concat(cert.altnames.slice(0));
allDomains.forEach(function(name) {
name = name.toLowerCase();
if (!gl._certnames[name]) {
gl._certnames[name] = {};
}
allDomains.forEach(function(name2) {
name2 = name2.toLowerCase();
gl._certnames[name][name2] = true;
});
});
};
gl._checkServername = function(safeHost, servername) {
// odd, but acceptable
if (!safeHost || !servername) {
return true;
}
if (safeHost === servername) {
return true;
}
// connection established with servername and session is re-used for allowed name
if (gl._certnames[servername] && gl._certnames[servername][safeHost]) {
return true;
}
return false;
};
if (!gl.tlsOptions.SNICallback) {
if (!gl.getCertificatesAsync && !gl.getCertificates) {
if (Array.isArray(gl.approveDomains)) {
gl.approvedDomains = gl.approveDomains;
gl.approveDomains = null;
}
if (!gl.approveDomains) {
gl.approveDomains = function(lexOpts, cb) {
var err;
var emsg;
if (!gl.email) {
throw new Error(
"le-sni-auto is not properly configured. Missing email"
);
}
if (!gl.agreeTos) {
throw new Error(
"le-sni-auto is not properly configured. Missing agreeTos"
);
}
if (!/[a-z]/i.test(lexOpts.domain)) {
cb(new Error("le-sni-auto does not allow IP addresses in SNI"));
return;
}
if (!Array.isArray(gl.approvedDomains)) {
// The acme-v2 package uses pre-flight test challenges to
// verify that each requested domain is hosted by the server
// these checks are sufficient for most use cases
return cb(null, lexOpts);
}
if (
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;
2015-12-11 14:22:46 +00:00
};