From 5b6c4ea01d62acc4f2552c242f9ea9117a5f1a69 Mon Sep 17 00:00:00 2001
From: AJ ONeal <coolaj86@gmail.com>
Date: Sun, 7 Apr 2019 15:55:48 -0600
Subject: [PATCH] initial commit

---
 .gitignore |  37 ++++++++++++
 README.md  |  92 ++++++++++++++++++++++++++++++
 example.js |  15 +++++
 index.js   | 163 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 307 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100644 example.js
 create mode 100644 index.js

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5148e52
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,37 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules
+jspm_packages
+
+# Optional npm cache directory
+.npm
+
+# Optional REPL history
+.node_repl_history
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..1f8a557
--- /dev/null
+++ b/README.md
@@ -0,0 +1,92 @@
+# [greenlock-challenge-test](https://git.coolaj86.com/coolaj86/greenlock-challenge-test.js.git)
+
+| A [Root](https://rootprojects.org) Project |
+
+The test harness you should use when writing an ACME challenge strategy
+for [Greenlock](https://git.coolaj86.com/coolaj86/greenlock-express.js) v2.7+ (and v3).
+
+All implementations MUST pass these tests, which is a very easy thing to do (just `set()`, `get()`, and `remove()`).
+
+The tests account for single-domain certificates (`example.com`) as well as multiple domain certs (SAN / AltName),
+wildcards (`*.example.com`), and valid private / localhost certificates. As someone creating a challenge strategy
+that's not something you have to take special consideration for - just pass the tests.
+
+## Install
+
+```bash
+npm install --save-dev greenlock-challenge-test@3.x
+```
+
+## Usage
+
+```js
+var tester = require('greenlock-challenge-test');
+
+//var challenger = require('greenlock-challenge-http').create({});
+//var challenger = require('greenlock-challenge-dns').create({});
+var challenger = require('./YOUR-CHALLENGE-STRATEGY').create({});
+
+// The dry-run tests can pass on, literally, 'example.com'
+// but the integration tests require that you have control over the domain
+var domain = 'example.com';
+
+tester.test('http-01', domain, challenger).then(function () {
+  console.info("PASS");
+});
+```
+
+## Overview
+
+```js
+tester.test('http-01', 'example.com', {
+  set: function (opts) {
+    var ch = opts.challenge;
+    // { type: 'http-01' // or 'dns-01'
+    // , identifier: { type: 'dns', value: 'example.com' }
+    // , wildcard: false
+    // , token: 'xxxx'
+    // , keyAuthorization: 'xxxx.yyyy'
+    // , dnsHost: '_acme-challenge.example.com'
+    // , dnsAuthorization: 'zzzz' }
+
+    return API.set(...);
+  }
+, get: function (query) {
+    var ch = query.challenge;
+    // { type: 'http-01' // or 'dns-01', 'tls-alpn-01', etc
+    // , identifier: { type: 'dns', value: 'example.com' }
+    //   // http-01 only
+    // , token: 'xxxx'
+    // , url: '...' // for testing and debugging
+    //   // dns-01 only, for testing / dubgging
+    // , altname: '...'
+    // , dnsHost: '...'
+    // , dnsAuthorization: '...' }
+    // Note: query.identifier.value is different for http-01 than for dns-01
+
+    return API.get(...).then(function () {
+      // http-01
+      return { identifier: { type: 'dns', value: 'example.com' }, keyAuthorization: 'xxxx.yyyy' };
+      // dns-01
+      //return { identifier: { type: 'dns', value: 'example.com' }, dnsAuthorization: 'zzzz' };
+    });
+  }
+, remove: function (opts) {
+    var ch = opts.challenge;
+    // same options as in `set()` (which are not the same as `get()`
+
+    return API.remove(...);
+  }
+}).then(function () {
+  console.info("PASS");
+});
+```
+
+Note: The `API.get()`, `API.set()`, and `API.remove()` is where you do your magic up to upload a file to the correct
+location on an http serever, set DNS records, or add the appropriate data to the database that handles such things.
+
+## Example
+
+See `example.js` (it works).
+
+Will post reference implementations here later...
diff --git a/example.js b/example.js
new file mode 100644
index 0000000..b952987
--- /dev/null
+++ b/example.js
@@ -0,0 +1,15 @@
+'use strict';
+
+var tester = require('greenlock-challenge-test');
+
+var challenger = require('greenlock-challenge-http').create({});
+//var challenger = require('greenlock-challenge-dns').create({});
+//var challenger = require('./YOUR-CHALLENGE-STRATEGY').create({});
+
+// The dry-run tests can pass on, literally, 'example.com'
+// but the integration tests require that you have control over the domain
+var domain = 'example.com';
+
+tester.test('http-01', domain, challenger).then(function () {
+  console.info("PASS");
+});
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..aad46cc
--- /dev/null
+++ b/index.js
@@ -0,0 +1,163 @@
+'use strict';
+/*global Promise*/
+var crypto = require('crypto');
+
+module.exports.create = function () {
+  throw new Error("greenlock-challenge-test is a test fixture for greenlock-challenge-* plugins, not a plugin itself");
+};
+
+// ignore all of this, it's just to normalize Promise vs node-style callback thunk vs synchronous
+function promiseCheckAndCatch(obj, name) {
+  var promisify = require('util').promisify;
+  // don't loose this-ness, just in case that's important
+  var fn = obj[name].bind(obj);
+  var promiser;
+
+  // function signature must match, or an error will be thrown
+  if (1 === fn.length) {
+    // wrap so that synchronous errors are caught (alsa handles synchronous results)
+    promiser = function (opts) {
+      return Promise.resolve().then(function () {
+        return fn(opts);
+      });
+    };
+  } else if (2 === fn.length) {
+    // wrap as a promise
+    promiser = promisify(fn);
+  } else {
+    return Promise.reject(new Error("'challenge." + name + "' should accept either one argument, the options,"
+      + " and return a Promise or accept two arguments, the options and a node-style callback thunk"));
+  }
+
+  function shouldntBeNull(result) {
+    if ('undefined' === typeof result) {
+      throw new Error("'challenge.'" + name + "' should never return `undefined`. Please explicitly return null"
+        + " (or fix the place where a value should have been returned but wasn't).");
+    }
+  }
+
+  return function (opts) {
+    return promiser(opts).then(shouldntBeNull);
+  };
+}
+
+// Here's the meat, where the tests are happening:
+function run(challenger, opts) {
+  var ch = opts.challenge;
+  if ('http-01' === ch.type && ch.wildname) {
+    throw new Error("http-01 cannot be used for wildcard domains");
+  }
+
+  var set = promiseCheckAndCatch(challenger, 'set');
+  if ('function' !== typeof challenger.get) {
+    throw new Error("'challenge.get' should be implemented for the sake of testing."
+      + " It should be implemented as the internal method for fetching the challenge"
+      + " (i.e. reading from a database, file system or API, not return internal),"
+      + " not the external check (the http call, dns query, etc), which will already be done as part of this test.");
+  }
+  var get = promiseCheckAndCatch(challenger, 'get');
+  var remove = promiseCheckAndCatch(challenger, 'remove');
+
+  // The first time we just check it against itself
+  // this will cause the prompt to appear
+  return set(opts).then(function () {
+    // this will cause the final completion message to appear
+    var query = { type: ch.type };
+    if ('http-01' === ch.type) {
+      query.identifier = ch.identifier;
+      query.token = ch.token;
+      // For testing only
+      query.url = ch.token;
+    } else if ('dns-01' === ch.type) {
+      query.identifier = { type: 'dns', value: ch.dnsHost };
+      // For testing only
+      query.altname = ch.altname;
+      query.dnsAuthorization = ch.dnsAuthorization;
+    } else {
+      query = JSON.parse(JSON.stringify(ch));
+      query.comment = "unknown challenge type, supplying everything";
+    }
+    return get({ challenge: query }).then(function (result) {
+      if ('http-01' === ch.type) {
+        if (ch.keyAuthorization !== result.keyAuthorization
+          // cross-checking on purpose
+          || (ch.altname !== result.identifier.value || ch.identifier.value !== result.altname)
+        ) {
+          throw new Error("challenge.get() for http-01 should return the same altname, identifier.value,"
+            + " and keyAuthorization as were saved with challenge.set()");
+        }
+      } else if ('dns-01' === ch.type) {
+        if (ch.dnsAuthorization !== result.dnsAuthorization
+          || ch.identifier.value !== result.identifier.value
+        ) {
+          throw new Error("challenge.get() for dns-01 should return the same identifier.value,"
+            + " and dnsAuthorization as were saved with challenge.set()");
+        }
+      } else {
+        if (ch.identifier.value !== result.identifier.value) {
+          throw new Error("challenge.get() should always return the same identifier.value,"
+            + " and dnsAuthorization as were saved with challenge.set()");
+        }
+        if ('tls-alpn-01' === ch.type) {
+          console.warn("'tls-alpn-01' support is in development"
+            + " (or developed and we haven't update this yet). Please contact us.");
+        } else {
+          console.warn("We don't know how to test '" + ch.type + "'... are you sure that's a thing?");
+        }
+      }
+    }).then(function () {
+      return remove(opts).then(function () {
+        return get(opts).then(function (result) {
+          if (result) {
+            throw new Error("challenge.remove() should have made it not possible for challenge.get() to return a value");
+          }
+          if (null !== result) {
+            throw new Error("challenge.get() should return null when the value is not set");
+          }
+        });
+      });
+    });
+  }).then(function () {
+    console.info("All soft tests: PASS");
+    console.warn("Hard tests (actually checking http URLs and dns records) is implemented in acme-v2.");
+    console.warn("We'll copy them over here as well, but that's a TODO for next week.");
+  });
+}
+
+module.exports.test = function (type, altname, challenger) {
+  var expires = new Date(Date.now() + (10*60*1000)).toISOString();
+  var token = crypto.randomBytes('8').toString('hex');
+  var thumb = crypto.randomBytes('16').toString('hex');
+  var keyAuth = token + '.' + crypto.randomBytes('16').toString('hex');
+  var dnsAuth = crypto.createHash('sha256').update(keyAuth).digest('base64')
+    .replace(/\+/, '-').replace(/\//, '_').replace(/=/, '');
+
+  var challenge = {
+    type: type
+  , identifier: { type: 'dns', value: null }  // completed below
+  , wildcard: false                           // completed below
+  , expires: expires
+  , token: token
+  , thumbprint: thumb
+  , keyAuthorization: keyAuth
+  , url: null                                 // completed below
+  , dnsHost: '_acme-challenge.'               // completed below
+  , dnsAuthorization: dnsAuth
+  , altname: altname
+  };
+  if ('*.' === altname.slice(0, 2)) {
+    challenge.wildcard = true;
+    altname = altname.slice(2);
+  }
+  challenge.identifier.value = altname;
+  challenge.url = 'http://' + altname + '/.well-known/acme-challenge/' + challenge.token;
+  challenge.dnsHost += altname;
+
+  run(challenger, { challenge: challenge }).then(function () {
+    console.info("PASS");
+  }).catch(function (err) {
+    console.error("FAIL");
+    console.error(err);
+    process.exit(20);
+  });
+};