97 lines
2.8 KiB
JavaScript
97 lines
2.8 KiB
JavaScript
'use strict';
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module.exports.create = function (deps, config) {
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var PromiseA = require('bluebird');
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var fs = PromiseA.promisifyAll(require('fs'));
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var stunnel = require('stunnel');
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var activeTunnels = {};
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var tokensPath = require('path').join(__dirname, '..', 'var', 'tokens.json');
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var storage = {
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all: function () {
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var tokens;
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try {
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tokens = require(tokensPath);
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} catch (err) {
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tokens = {};
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}
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return PromiseA.resolve(Object.keys(tokens).map(function (key) {
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return tokens[key];
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}));
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}
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, save: function (result) {
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var tokens;
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try {
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tokens = require(tokensPath);
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} catch (err) {
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tokens = {};
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}
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tokens[result.jwt] = result;
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return fs.writeFileAsync(tokensPath, JSON.stringify(tokens), 'utf8');
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}
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};
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function addToken(data) {
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if (!data.tunnelUrl) {
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var decoded;
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try {
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decoded = JSON.parse(new Buffer(data.jwt.split('.')[1], 'base64').toString('ascii'));
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} catch (err) {
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console.warn('invalid web token given to tunnel manager', err);
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return PromiseA.reject(err);
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}
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if (!decoded.aud) {
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console.warn('tunnel manager given token with no tunnelUrl or audience');
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var err = new Error('missing tunnelUrl and audience');
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return PromiseA.reject(err);
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}
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data.tunnelUrl = 'wss://' + decoded.aud + '/';
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}
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if (!activeTunnels[data.tunnelUrl]) {
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console.log('creating new tunnel client for', data.tunnelUrl);
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// We create the tunnel without an initial token so we can append the token and
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// get the promise that should tell us more about if it worked or not.
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activeTunnels[data.tunnelUrl] = stunnel.connect({
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stunneld: data.tunnelUrl
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, net: deps.tunnel.net
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// NOTE: the ports here aren't that important since we are providing a custom
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// `net.createConnection` that doesn't actually use the port. What is important
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// is that any services we are interested in are listed in this object and have
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// a '*' sub-property.
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, services: {
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https: { '*': 443 }
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, http: { '*': 80 }
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, smtp: { '*': 25 }
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, smtps: { '*': 587 /*also 465/starttls*/ }
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, ssh: { '*': 22 }
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}
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});
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}
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console.log('appending token to tunnel at', data.tunnelUrl);
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return activeTunnels[data.tunnelUrl].append(data.jwt);
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}
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if (typeof config.tunnel === 'string') {
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config.tunnel.split(',').forEach(function (jwt) {
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addToken({ jwt: jwt, owner: 'config' });
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});
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}
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storage.all().then(function (stored) {
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stored.forEach(function (result) {
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addToken(result);
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});
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});
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return {
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add: function (data) {
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return addToken(data).then(function () {
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return storage.save(data);
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});
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}
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};
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};
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