handle pairing request via API
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@ -13,14 +13,49 @@
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</div>
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</div>
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<div class="js-magic" hidden>
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<h1>Give us about 30 seconds...</h1>
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We're initializing our connection, redirecting you to your device at
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<a class="js-new-href">{{js-new-href}}</a>
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which will then take a few seconds to initialize as it gets your https certificates for peer-to-peer, end-to-end encryption
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<br>
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<br>
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<small><pre><code class="js-token-data">{{js-token-data}}</code></pre></small>
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<div class="js-magic" hidden><form class="js-submit">
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<h1>Telebit</h1>
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<h2>Pair <span class="js-hostname">Device</span></h1>
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<p>Enter your device pairing code:
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<input type="text" name="pair-code" placeholder="ex: 000 000">
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</p>
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<ul>
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<li><label><input name="telebit-agree" type="checkbox" required> Agree to Telebit Terms of Service</label>
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</li>
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<li><label><input name="letsencrypt-agree" type="checkbox" required> Agree to Let's Encrypt Terms of Service</label>
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</li>
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</ul>
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<p>
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<button type="submit">Claim Device</button>
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</p>
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</form></div>
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<div class="js-authz" hidden>
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<h1>Telebit Authorized</h1>
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<h2>Waiting for your device to connect...</h2>
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<p>Check your device to complete the pairing.</p>
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<h2>🔒 <span class="js-domainname">xxx-xxx-xxx.example.com</span></h2>
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<p>When your device is paired you will be redirected to
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<a class="js-new-href">{{js-new-href}}</a>.
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</p>
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<h2 class="js-serviceport">xxxxx</h2>
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<p>When your device is paired you will be able to use <span class="js-serviceport">xxxxx</span>
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for SSH, and other TCP protocols.</p>
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<pre><code>telebit ssh auto
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ssh <span class="js-domainname">{{servername}}</span> -p <span class="js-serviceport">{{serviceport}}</span></code></pre>
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</code></pre>
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<h2>Authorization Token</h2>
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<small><pre><code class="js-token">{{js-token}}</code></pre></small>
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</div>
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<script src="js/app.js"></script>
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@ -1,29 +1,118 @@
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(function () {
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'use strict';
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var magic = (window.location.hash || '').substr(2).replace(/magic=/, '');
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var meta = {};
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var magic;
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if (magic) {
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window.fetch('https://api.' + location.hostname + '/api/telebit.cloud/magic/' + magic, {
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function checkStatus() {
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// TODO use Location or Link
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window.fetch(meta.baseUrl + 'api/telebit.cloud/pair_state/' + magic, {
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method: 'GET'
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, cors: true
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}).then(function (resp) {
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return resp.json().then(function (json) {
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if (json.error) {
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return resp.json().then(function (data) {
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console.log(data);
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}, function (err) {
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console.error(err);
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}).then(function () {
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setTimeout(checkStatus, 2 * 1000);
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});
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});
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}
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function submitCode(pair) {
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// TODO use Location or Link
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document.querySelector('.js-magic').hidden = true;
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window.fetch(meta.baseUrl + 'api/telebit.cloud/pair_code/', {
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method: 'POST'
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, headers: {
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'Content-Type': 'application/json'
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}
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, body: JSON.stringify({
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magic: pair.magic
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, pin: pair.pin || pair.code
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, agree_tos: pair.agreeTos
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})
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, cors: true
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}).then(function (resp) {
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return resp.json().then(function (data) {
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setTimeout(checkStatus, 0);
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document.querySelector('.js-authz').hidden = false;
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console.log(data);
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/*
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document.querySelectorAll('.js-token-data').forEach(function ($el) {
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$el.innerText = JSON.stringify(data, null, 2);
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});
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*/
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document.querySelectorAll('.js-new-href').forEach(function ($el) {
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$el.href = 'https://' + data.domains[0] + '/';
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$el.innerText = '🔐 https://' + data.domains[0];
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});
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document.querySelectorAll('.js-domainname').forEach(function ($el) {
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$el.innerText = data.domains.join(',');
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});
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document.querySelectorAll('.js-serviceport').forEach(function ($el) {
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$el.innerText = data.ports.join(',');
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});
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document.querySelectorAll('.js-token').forEach(function ($el) {
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$el.innerText = data.jwt;
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});
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}, function (err) {
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console.error(err);
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document.querySelector('.js-error').hidden = false;
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});
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});
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}
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function init() {
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magic = (window.location.hash || '').substr(2).replace(/magic=/, '');
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if (!magic) {
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document.querySelector('body').hidden = false;
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document.querySelector('.js-error').hidden = false;
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}
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window.fetch(meta.baseUrl + meta.pair_request.pathname + '/' + magic, {
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method: 'GET'
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, cors: true
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}).then(function (resp) {
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return resp.json().then(function (data) {
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console.log('Data:');
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console.log(data);
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if (data.error) {
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document.querySelector('.js-error').hidden = false;
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document.querySelector('.js-magic-link').innerText = magic;
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return;
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}
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document.querySelector('body').hidden = false;
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document.querySelector('.js-magic').hidden = false;
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document.querySelector('.js-token-data').innerText = JSON.stringify(json, null, 2);
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document.querySelector('.js-new-href').href = json.domains[0];
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document.querySelector('.js-new-href').innerText = json.domains[0];
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document.querySelector('.js-hostname').innerText = data.hostname || 'Device';
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//document.querySelector('.js-token-data').innerText = JSON.stringify(data, null, 2);
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});
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});
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} else {
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document.querySelector('body').hidden = false;
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document.querySelector('.js-error').hidden = false;
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document.querySelector('.js-submit').addEventListener('submit', function (ev) {
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ev.preventDefault();
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var pair = {};
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pair.magic = magic;
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pair.code = document.querySelector('[name=pair-code]').value;
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pair.agreeTos = document.querySelector('[name=letsencrypt-agree]').checked
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&& document.querySelector('[name=telebit-agree]').checked;
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console.log('Pair Form:');
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console.log(pair);
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submitCode(pair);
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});
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}
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window.fetch('https://' + location.hostname + '/_apis/telebit.cloud/index.json', {
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method: 'GET'
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, cors: true
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}).then(function (resp) {
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return resp.json().then(function (_json) {
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meta = _json;
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meta.baseUrl = 'https://' + meta.api_host.replace(/:hostname/g, location.hostname) + '/';
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init();
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});
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});
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}());
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@ -9,6 +9,73 @@ var jwt = require('jsonwebtoken');
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var requestAsync = util.promisify(require('request'));
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var _auths = module.exports._auths = {};
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var Auths = {};
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Auths._no_pin = {
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toString: function () {
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return Math.random().toString();
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}
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};
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Auths.get = function (idOrSecret) {
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var auth = _auths[idOrSecret];
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if (!auth) { return; }
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if (auth.exp && auth.exp < Date.now()) { return; }
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return auth;
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};
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Auths.getBySecret = function (secret) {
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var auth = Auths.get(secret);
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if (!auth) { return; }
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if (!crypto.timingSafeEqual(
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Buffer.from(auth.secret.padStart(127, ' '))
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, Buffer.from((secret || '').padStart(127, ' '))
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)) {
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return;
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}
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return auth;
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};
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Auths.getBySecretAndPin = function (secret, pin) {
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var auth = Auths.getBySecret(secret);
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if (!auth) { return; }
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// TODO v1.0.0 : Security XXX : clients must define a pin
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// 1. Check if the client defined a pin (it should)
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if (auth.pin === Auths._no_pin) {
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// 2. If the browser defined a pin, it should be some variation of 000 000
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if (pin && 0 !== parseInt(pin, 10)) { return; }
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} else if (!crypto.timingSafeEqual(
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Buffer.from(auth.pin.toString().padStart(127, ' '))
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, Buffer.from((pin || '').padStart(127, ' '))
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)) {
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// 3. The client defined a pin and it doesn't match what the browser defined
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return;
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}
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return auth;
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};
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Auths.set = function (auth, id, secret) {
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auth.id = auth.id || id || crypto.randomBytes(12).toString('hex');
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auth.secret = auth.secret || secret || crypto.randomBytes(12).toString('hex');
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_auths[auth.id] = auth;
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_auths[auth.secret] = auth;
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return auth;
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};
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Auths._clean = function () {
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Object.keys(_auths).forEach(function (key) {
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var err;
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if (_auths[key]) {
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if (_auths[key].exp < Date.now()) {
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if ('function' === typeof _auths[key].reject) {
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err = new Error("Login Failure: Magic Link was not clicked within 5 minutes");
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err.code = 'E_LOGIN_TIMEOUT';
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_auths[key].reject(err);
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}
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_auths[key] = null;
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delete _auths[key];
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}
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}
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});
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};
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function sendMail(state, auth) {
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console.log('[DEBUG] ext auth', auth);
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@ -58,7 +125,8 @@ function sendMail(state, auth) {
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, html: html
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}
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}).then(function (resp) {
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fs.writeFile(path.join(__dirname, 'emails', auth.subject), JSON.stringify(auth), function (err) {
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var pathname = path.join(__dirname, 'emails', auth.subject);
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fs.writeFile(pathname, JSON.stringify(auth), function (err) {
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if (err) {
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console.error('[ERROR] in writing auth details');
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console.error(err);
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@ -72,36 +140,38 @@ function sendMail(state, auth) {
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module.exports.pairRequest = function (opts) {
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console.log("It's auth'n time!");
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var state = opts.state;
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var auth = opts.auth;
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var authReq = opts.auth;
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var jwt = require('jsonwebtoken');
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var auth;
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auth.id = crypto.randomBytes(12).toString('hex');
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auth.secret = crypto.randomBytes(12).toString('hex');
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//var id = crypto.randomBytes(16).toString('base64').replace(/\+/g,'-').replace(/\//g,'_').replace(/=/g,'');
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authReq.id = crypto.randomBytes(12).toString('hex');
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authReq.secret = crypto.randomBytes(12).toString('hex');
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console.log("[DEBUG] !!state", !!state);
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console.log("[DEBUG] !!auth", !!auth);
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return sendMail(state, auth).then(function () {
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return sendMail(state, authReq).then(function () {
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var now = Date.now();
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var authnToken = {
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var pin = (authReq.otp || '').toString().replace(/\s\+/g, '') || Auths._no_pin;
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var authnData = {
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domains: []
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, ports: []
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, aud: state.config.webminDomain
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, iss: Math.round(now / 1000)
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, id: auth.id
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, pin: auth.otp
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, hostname: auth.hostname
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, iat: Math.round(now / 1000)
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, id: authReq.id
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, pin: pin
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, hostname: authReq.hostname
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};
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_auths[auth.id] = _auths[auth.secret] = {
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dt: now
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, authn: jwt.sign(authnToken, state.secret)
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, pin: auth.otp
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, id: auth.id
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, secret: auth.secret
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auth = {
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id: authReq.id
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, secret: authReq.secret
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, pin: pin
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, dt: now
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, exp: now + (2 * 60 * 60 * 1000)
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, authnData: authnData
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, authn: jwt.sign(authnData, state.secret)
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, request: authReq
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};
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authnToken.jwt = _auths[auth.id].authn;
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// return empty token which will receive grants upon authorization
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return authnToken;
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authnData.jwt = auth.authn;
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Auths.set(auth, authReq.id, authReq.secret);
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return authnData;
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});
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};
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module.exports.pairPin = function (opts) {
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@ -109,96 +179,115 @@ module.exports.pairPin = function (opts) {
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return state.Promise.resolve().then(function () {
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var pin = opts.pin;
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var secret = opts.secret;
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var auth = _auths[secret];
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var auth = Auths.getBySecretAndPin(secret, pin);
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if (!auth || auth.secret !== opts.secret) {
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throw new Error("I can't even right now - bad magic link id");
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if (!auth) {
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throw new Error("I can't even right now - bad magic link or pairing code");
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}
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// XXX security, we want to check the pin if it's supported serverside,
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// regardless of what the client sends. This bad logic is just for testing.
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if (pin && auth.pin && pin !== auth.pin) {
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throw new Error("I can't even right now - bad device pair pin");
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if (auth._offered) {
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return auth._offered;
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}
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auth._paired = true;
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//delete _auths[auth.id];
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var hri = require('human-readable-ids').hri;
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var hrname = hri.random() + '.' + state.config.sharedDomain;
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var authzToken = {
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domains: [ hrname ]
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, ports: [ (1024 + 1) + Math.round(Math.random() * 6300) ]
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// TODO check used / unused names and ports
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var authzData = {
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id: auth.id
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, domains: [ hrname ]
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, ports: [ (1024 + 1) + Math.round(Math.random() * 65535) ]
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, aud: state.config.webminDomain
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, iss: Math.round(Date.now() / 1000)
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, id: auth.id
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, iat: Math.round(Date.now() / 1000)
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, hostname: auth.hostname
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};
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authzToken.jwt = jwt.sign(authzToken, state.secret);
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fs.writeFile(path.join(__dirname, 'emails', auth.subject + '.data'), JSON.stringify(authzToken), function (err) {
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var pathname = path.join(__dirname, 'emails', auth.subject + '.' + hrname + '.data');
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auth.authz = jwt.sign(authzData, state.secret);
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authzData.jwt = auth.authz;
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fs.writeFile(pathname, JSON.stringify(authzData), function (err) {
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if (err) {
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console.error('[ERROR] in writing token details');
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console.error(err);
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}
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});
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return authzToken;
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auth._offered = authzData;
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return authzData;
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});
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};
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module.exports.pairState = function (opts) {
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var state = opts.state;
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var auth = opts.auth;
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var resolve = opts.resolve;
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var reject = opts.reject;
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// TODO use global interval whenever the number of active links is high
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var t = setTimeout(function () {
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console.log("[Magic Link] Timeout for '" + auth.subject + "'");
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delete _auths[auth.id];
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var err = new Error("Login Failure: Magic Link was not clicked within 5 minutes");
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err.code = 'E_LOGIN_TIMEOUT';
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reject();
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}, 2 * 60 * 60 * 1000);
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function authorize(pin) {
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console.log("mighty auth'n ranger!");
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clearTimeout(t);
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return module.exports.pairPin({ secret: auth.secret, pin: pin }).then(function (tokenData) {
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// TODO call state object with socket info rather than resolve
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resolve(tokenData);
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return tokenData;
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}, function (err) {
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reject(err);
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return state.Promise.reject(err);
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});
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}
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_auths[auth.id].resolve = authorize;
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_auths[auth.id].reject = reject;
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};
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// From a WS connection
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module.exports.authenticate = function (opts) {
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var jwt = require('jsonwebtoken');
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var jwtoken = opts.auth;
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var auth = opts.auth;
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var authReq = opts.auth;
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var state = opts.state;
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var auth;
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var decoded;
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if ('object' === typeof auth && /^.+@.+\..+$/.test(auth.subject)) {
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return module.exports.pairRequest(opts).then(function () {
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return new state.Promise(function (resolve, reject) {
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opts.resolve = resolve;
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opts.reject = reject;
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module.exports.pairState(opts);
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});
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function getPromise(auth) {
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if (auth.promise) { return auth.promise; }
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auth.promise = new state.Promise(function (resolve, reject) {
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// Resolve
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// this should resolve when the magic link is clicked in the email
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// and the pair code is entered in successfully
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// Reject
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// this should reject when the pair code is entered incorrectly
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// multiple times (or something else goes wrong)
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// this will cause the websocket to disconnect
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auth.resolve = resolve;
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auth.reject = reject;
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});
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return auth.promise;
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}
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|
||||
if ('object' === typeof authReq && /^.+@.+\..+$/.test(authReq.subject)) {
|
||||
console.log("[ext token] Looks Like Auth Object");
|
||||
return module.exports.pairRequest(opts).then(function (authnData) {
|
||||
console.log("[ext token] Promises Like Auth Object");
|
||||
var auth = Auths.get(authnData.id);
|
||||
return getPromise(auth);
|
||||
});
|
||||
}
|
||||
|
||||
console.log("just trying a normal token...");
|
||||
var decoded;
|
||||
console.log("[ext token] Trying Token Parse");
|
||||
try {
|
||||
decoded = jwt.decode(jwtoken, { complete: true });
|
||||
auth = Auths.get(decoded.payload.id);
|
||||
} catch(e) {
|
||||
console.log("[ext token] Token Did Not Parse");
|
||||
decoded = null;
|
||||
}
|
||||
|
||||
console.log("[ext token] decoded auth token:");
|
||||
console.log(decoded);
|
||||
|
||||
if (!auth) {
|
||||
console.log("[ext token] did not find auth object");
|
||||
}
|
||||
|
||||
// TODO technically this could leak the token through a timing attack
|
||||
// but it would require already knowing the semi-secret id and having
|
||||
// completed the pair code
|
||||
if (auth && (auth.authn === jwtoken || auth.authz === jwtoken)) {
|
||||
if (!auth.authz) {
|
||||
console.log("[ext token] Promise Authz");
|
||||
return getPromise(auth);
|
||||
}
|
||||
|
||||
console.log("[ext token] Use Available Authz");
|
||||
// If they used authn but now authz is available, use authz
|
||||
// (i.e. connects, but no domains or ports)
|
||||
opts.auth = auth.authz;
|
||||
// The browser may poll for this value
|
||||
// otherwise we could also remove the auth at this time
|
||||
auth._claimed = true;
|
||||
}
|
||||
|
||||
console.log("[ext token] Continue With Auth Token");
|
||||
return state.defaults.authenticate(opts.auth);
|
||||
};
|
||||
|
||||
@ -224,7 +313,8 @@ app.use('/api', function (req, res, next) {
|
||||
});
|
||||
});
|
||||
app.use('/api', bodyParser.json());
|
||||
// From Device
|
||||
|
||||
// From Device (which knows id, but not secret)
|
||||
app.post('/api/telebit.cloud/pair_request', function (req, res) {
|
||||
var auth = req.body;
|
||||
console.log('[ext] pair_request (request)', req.headers);
|
||||
@ -242,57 +332,100 @@ app.post('/api/telebit.cloud/pair_request', function (req, res) {
|
||||
res.send({ error: { code: err.code, message: err.toString() } });
|
||||
});
|
||||
});
|
||||
// From Browser
|
||||
app.post('/api/telebit.cloud/pair_code', function (req, res) {
|
||||
var auth = req.body;
|
||||
return module.exports.pairPin({ secret: auth.magic, pin: auth.pin }).then(function (tokenData) {
|
||||
|
||||
// From Browser (which knows secret, but not pin)
|
||||
app.get('/api/telebit.cloud/pair_request/:secret', function (req, res) {
|
||||
var secret = req.params.secret;
|
||||
var auth = Auths.getBySecret(secret);
|
||||
var crypto = require('crypto');
|
||||
var response = {};
|
||||
|
||||
|
||||
if (!auth) {
|
||||
res.send({ error: { message: "Invalid" } });
|
||||
return;
|
||||
}
|
||||
|
||||
auth.referer = req.headers.referer;
|
||||
auth.user_agent = req.headers['user-agent'];
|
||||
|
||||
response.id = auth.id;
|
||||
// do not reveal email or otp
|
||||
[ 'scope', 'hostname', 'os_type', 'os_platform', 'os_release', 'os_arch' ].forEach(function (key) {
|
||||
response[key] = auth.request[key];
|
||||
});
|
||||
res.send(response);
|
||||
});
|
||||
|
||||
// From User (which has entered pin)
|
||||
function pairCode(req, res) {
|
||||
console.log("DEBUG telebit.cloud magic");
|
||||
console.log(req.body || req.params);
|
||||
|
||||
var magic;
|
||||
var pin;
|
||||
|
||||
if (req.body) {
|
||||
magic = req.body.magic;
|
||||
pin = req.body.pin;
|
||||
} else {
|
||||
magic = req.params.magic || req.query.magic;
|
||||
pin = req.params.pin || req.query.pin;
|
||||
}
|
||||
|
||||
return module.exports.pairPin({
|
||||
state: req._state
|
||||
, secret: magic
|
||||
, pin: pin
|
||||
}).then(function (tokenData) {
|
||||
res.send(tokenData);
|
||||
}, function (err) {
|
||||
res.send({ error: err });
|
||||
res.send({ error: { message: err.toString() } });
|
||||
//res.send(tokenData || { error: { code: "E_TOKEN", message: "Invalid or expired magic link. (" + magic + ")" } });
|
||||
});
|
||||
});
|
||||
// From Device (polling)
|
||||
}
|
||||
app.post('/api/telebit.cloud/pair_code', pairCode);
|
||||
// Alternate From User (TODO remove in favor of the above)
|
||||
app.get('/api/telebit.cloud/magic/:magic/:pin?', pairCode);
|
||||
|
||||
// From Device and Browser (polling)
|
||||
app.get(urls.pairState, function (req, res) {
|
||||
// check if pair is complete
|
||||
// respond immediately if so
|
||||
// wait for a little bit otherwise
|
||||
// respond if/when it completes
|
||||
// or respond after time if it does not complete
|
||||
var auth = _auths[req.params.id];
|
||||
var auth = Auths.get(req.params.id); // id or secret accepted
|
||||
if (!auth) {
|
||||
res.send({ status: 'invalid' });
|
||||
return;
|
||||
}
|
||||
|
||||
if (true === auth.paired) {
|
||||
res.send({
|
||||
status: 'ready', access_token: _auths[req.params.id].jwt
|
||||
, grant: { domains: auth.domains || [], ports: auth.ports || [] }
|
||||
});
|
||||
} else if (false === _auths[req.params.id].paired) {
|
||||
res.send({ status: 'failed', error: { message: "device pairing failed" } });
|
||||
} else {
|
||||
res.send({ status: 'pending' });
|
||||
}
|
||||
});
|
||||
// From Browser
|
||||
app.get('/api/telebit.cloud/magic/:magic/:pin?', function (req, res) {
|
||||
console.log("DEBUG telebit.cloud magic");
|
||||
var tokenData;
|
||||
var magic = req.params.magic || req.query.magic;
|
||||
var pin = req.params.pin || req.query.pin;
|
||||
console.log("DEBUG telebit.cloud magic 1a", magic);
|
||||
if (_auths[magic] && magic === _auths[magic].secret) {
|
||||
console.log("DEBUG telebit.cloud magic 1b");
|
||||
tokenData = _auths[magic].resolve(pin);
|
||||
console.log("DEBUG telebit.cloud magic 1c");
|
||||
res.send(tokenData);
|
||||
} else {
|
||||
console.log("DEBUG telebit.cloud magic 2");
|
||||
res.send({ error: { code: "E_TOKEN", message: "Invalid or expired magic link. (" + magic + ")" } });
|
||||
console.log("DEBUG telebit.cloud magic 2b");
|
||||
function check(i) {
|
||||
if (auth._claimed) {
|
||||
res.send({
|
||||
status: 'complete'
|
||||
});
|
||||
} else if (auth._offered) {
|
||||
res.send({
|
||||
status: 'ready', access_token: auth.authz
|
||||
, grant: { domains: auth.domains || [], ports: auth.ports || [] }
|
||||
});
|
||||
} else if (false === auth._offered) {
|
||||
res.send({ status: 'failed', error: { message: "device pairing failed" } });
|
||||
} else if (i >= 5) {
|
||||
var stateUrl = 'https://' + req._state.config.apiDomain + urls.pairState.replace(/:id/g, auth.id);
|
||||
res.statusCode = 200;
|
||||
res.setHeader('Location', stateUrl);
|
||||
res.setHeader('Link', '<' + stateUrl + '>;rel="next"');
|
||||
res.send({ status: 'pending' });
|
||||
} else {
|
||||
setTimeout(check, 3 * 1000, i + 1);
|
||||
}
|
||||
}
|
||||
check(0);
|
||||
});
|
||||
|
||||
module.exports.webadmin = function (state, req, res) {
|
||||
//if (!loaded) { loaded = true; app.use('/', state.defaults.webadmin); }
|
||||
console.log('[DEBUG] extensions webadmin');
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user