172 lines
7.2 KiB
JavaScript
172 lines
7.2 KiB
JavaScript
'use strict';
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/*global Promise*/
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var crypto = require('crypto');
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module.exports.create = function () {
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throw new Error("greenlock-challenge-test is a test fixture for greenlock-challenge-* plugins, not a plugin itself");
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};
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// ignore all of this, it's just to normalize Promise vs node-style callback thunk vs synchronous
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function promiseCheckAndCatch(obj, name) {
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var promisify = require('util').promisify;
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// don't loose this-ness, just in case that's important
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var fn = obj[name].bind(obj);
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var promiser;
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// function signature must match, or an error will be thrown
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if (1 === fn.length) {
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// wrap so that synchronous errors are caught (alsa handles synchronous results)
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promiser = function (opts) {
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return Promise.resolve().then(function () {
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return fn(opts);
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});
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};
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} else if (2 === fn.length) {
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// wrap as a promise
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promiser = promisify(fn);
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} else {
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return Promise.reject(new Error("'challenge." + name + "' should accept either one argument, the options,"
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+ " and return a Promise or accept two arguments, the options and a node-style callback thunk"));
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}
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function shouldntBeNull(result) {
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if ('undefined' === typeof result) {
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throw new Error("'challenge.'" + name + "' should never return `undefined`. Please explicitly return null"
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+ " (or fix the place where a value should have been returned but wasn't).");
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}
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return result;
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}
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return function (opts) {
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return promiser(opts).then(shouldntBeNull);
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};
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}
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// Here's the meat, where the tests are happening:
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function run(challenger, opts) {
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var ch = opts.challenge;
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if ('http-01' === ch.type && ch.wildname) {
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throw new Error("http-01 cannot be used for wildcard domains");
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}
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var set = promiseCheckAndCatch(challenger, 'set');
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if ('function' !== typeof challenger.get) {
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throw new Error("'challenge.get' should be implemented for the sake of testing."
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+ " It should be implemented as the internal method for fetching the challenge"
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+ " (i.e. reading from a database, file system or API, not return internal),"
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+ " not the external check (the http call, dns query, etc), which will already be done as part of this test.");
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}
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var get = promiseCheckAndCatch(challenger, 'get');
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var remove = promiseCheckAndCatch(challenger, 'remove');
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// The first time we just check it against itself
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// this will cause the prompt to appear
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return set(opts).then(function () {
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// this will cause the final completion message to appear
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// _test is used by the manual cli reference implementations
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var query = { type: ch.type, /*debug*/ status: ch.status, _test: true };
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if ('http-01' === ch.type) {
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query.identifier = ch.identifier;
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query.token = ch.token;
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// For testing only
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query.url = ch.challengeUrl;
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} else if ('dns-01' === ch.type) {
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query.identifier = { type: 'dns', value: ch.dnsHost };
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// For testing only
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query.altname = ch.altname;
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// there should only be two possible TXT records per challenge domain:
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// one for the bare domain, and the other if and only if there's a wildcard
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query.wildcard = ch.wildcard;
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} else {
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query = JSON.parse(JSON.stringify(ch));
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query.comment = "unknown challenge type, supplying everything";
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}
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return get({ challenge: query }).then(function (secret) {
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if ('string' === typeof secret) {
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console.info("secret was passed as a string, which works historically, but should be an object instead:");
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console.info('{ "keyAuthorization": "' + secret + '" }');
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console.info("or");
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// TODO this should be "keyAuthorizationDigest"
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console.info('{ "dnsAuthorization": "' + secret + '" }');
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console.info("This is to help keep greenlock (and associated plugins) future-proof for new challenge types");
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}
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// historically 'secret' has been a string, but I'd like it to transition to be an object.
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// to make it backwards compatible in v2.7 to change it,
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// so I'm not sure that we really need to.
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if ('http-01' === ch.type) {
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secret = secret.keyAuthorization || secret;
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if (ch.keyAuthorization !== secret) {
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throw new Error("http-01 challenge.get() returned '" + secret + "', which does not match the keyAuthorization"
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+ " saved with challenge.set(), which was '" + ch.keyAuthorization + "'");
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}
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} else if ('dns-01' === ch.type) {
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secret = secret.dnsAuthorization || secret;
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if (ch.dnsAuthorization !== secret) {
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throw new Error("dns-01 challenge.get() returned '" + secret + "', which does not match the dnsAuthorization"
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+ " (keyAuthDigest) saved with challenge.set(), which was '" + ch.dnsAuthorization + "'");
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}
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} else {
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if ('tls-alpn-01' === ch.type) {
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console.warn("'tls-alpn-01' support is in development"
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+ " (or developed and we haven't update this yet). Please contact us.");
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} else {
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console.warn("We don't know how to test '" + ch.type + "'... are you sure that's a thing?");
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}
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secret = secret.keyAuthorization || secret;
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if (ch.keyAuthorization !== secret) {
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console.warn("The returned value doesn't match keyAuthorization", ch.keyAuthorization, secret);
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}
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}
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}).then(function () {
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return remove(opts).then(function () {
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return get(opts).then(function (result) {
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if (result) {
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throw new Error("challenge.remove() should have made it not possible for challenge.get() to return a value");
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}
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if (null !== result) {
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throw new Error("challenge.get() should return null when the value is not set");
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}
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});
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});
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});
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}).then(function () {
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console.info("All soft tests: PASS");
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console.warn("Hard tests (actually checking http URLs and dns records) is implemented in acme-v2.");
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console.warn("We'll copy them over here as well, but that's a TODO for next week.");
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});
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}
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module.exports.test = function (type, altname, challenger) {
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var expires = new Date(Date.now() + (10*60*1000)).toISOString();
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var token = crypto.randomBytes(8).toString('hex');
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var thumb = crypto.randomBytes(16).toString('hex');
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var keyAuth = token + '.' + crypto.randomBytes(16).toString('hex');
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var dnsAuth = crypto.createHash('sha256').update(keyAuth).digest('base64')
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.replace(/\+/g, '-').replace(/\//g, '_').replace(/=/g, '');
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var challenge = {
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type: type
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, identifier: { type: 'dns', value: null } // completed below
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, wildcard: false // completed below
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, status: 'pending'
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, expires: expires
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, token: token
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, thumbprint: thumb
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, keyAuthorization: keyAuth
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, url: null // completed below
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, dnsHost: '_acme-challenge.' // completed below
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, dnsAuthorization: dnsAuth
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, altname: altname
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, _test: true // used by CLI referenced implementations
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};
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if ('*.' === altname.slice(0, 2)) {
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challenge.wildcard = true;
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altname = altname.slice(2);
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}
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challenge.identifier.value = altname;
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challenge.url = 'http://' + altname + '/.well-known/acme-challenge/' + challenge.token;
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challenge.dnsHost += altname;
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return run(challenger, { challenge: challenge });
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};
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