2015-11-04 09:22:00 +00:00
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'use strict';
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var cluster = require('cluster');
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var id = cluster.worker.id.toString();
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var path = require('path');
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var vhostsdir = path.join(__dirname, 'vhosts');
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console.log('[Worker #' + id + '] online!');
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function init(info) {
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var promiseServer;
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var workerApp;
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function promiseApps() {
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var PromiseA = require('bluebird');
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if (workerApp) {
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return PromiseA.resolve(workerApp);
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}
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workerApp = promiseServer.then(function (secureServer) {
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//secureServer = _secureServer;
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console.log("#" + id + " Listening on https://localhost:" + secureServer.address().port, '\n');
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2015-11-04 11:02:23 +00:00
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var app = require('express')();
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var apiHandler;
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var staticHandlers = {};
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2015-11-04 09:22:00 +00:00
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2015-11-04 11:02:23 +00:00
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app.use('/', function (req, res, next) {
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if (!/^\/api/.test(req.url)) {
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next();
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return;
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}
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2015-11-04 09:22:00 +00:00
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2015-11-04 11:02:23 +00:00
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if (apiHandler) {
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if (apiHandler.then) {
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apiHandler.then(function (app) {
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app(req, res, next);
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});
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return;
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}
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apiHandler(req, res, next);
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return;
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}
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apiHandler = require('./lib/vhost-server').create(info.securePort, vhostsdir).create(secureServer, app).then(function (app) {
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apiHandler = app;
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app(req, res, next);
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});
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2015-11-04 09:22:00 +00:00
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});
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2015-11-04 11:02:23 +00:00
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2015-11-04 11:26:18 +00:00
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function scrubTheDub(req, res/*, next*/) {
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// hack for bricked app-cache
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if (/\.appcache\b/.test(req.url)) {
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res.setHeader('Content-Type', 'text/cache-manifest');
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res.end('CACHE MANIFEST\n\n# v0__DELETE__CACHE__MANIFEST__\n\nNETWORK:\n*');
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return;
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}
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// TODO port number for non-443
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var escapeHtml = require('escape-html');
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var newLocation = 'https://' + req.headers.host.replace(/^www\./, '') + req.url;
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var safeLocation = escapeHtml(newLocation);
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var metaRedirect = ''
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+ '<html>\n'
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+ '<head>\n'
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+ ' <style>* { background-color: white; color: white; text-decoration: none; }</style>\n'
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+ ' <META http-equiv="refresh" content="0;URL=' + safeLocation + '">\n'
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+ '</head>\n'
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+ '<body style="display: none;">\n'
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+ ' <p>You requested an old resource. Please use this instead: \n'
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+ ' <a href="' + safeLocation + '">' + safeLocation + '</a></p>\n'
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+ '</body>\n'
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+ '</html>\n'
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;
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// 301 redirects will not work for appcache
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res.end(metaRedirect);
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}
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2015-11-04 11:02:23 +00:00
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app.use('/', function (req, res, next) {
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if (/^\/api/.test(req.url)) {
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next();
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return;
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}
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// TODO block absolute urls for mounted apps?
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// i.e. referer daplie.com/connect requests daplie.com/scripts/blah -> daplie.com/connect/scripts ?
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var host = req.headers.host;
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var invalidHost = /(\.\.)|[\\:\/\s\|>\*<]/;
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if (!host || 'string' !== typeof host) {
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next();
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return;
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}
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host = host.toLowerCase();
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2015-11-04 11:26:18 +00:00
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if (/^www\./.test(host)) {
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scrubTheDub(req, res, next);
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return;
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}
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function serveIt() {
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// TODO redirect GET /favicon.ico to GET (req.headers.referer||'') + /favicon.ico
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// TODO other common root things - robots.txt, app-icon, etc
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staticHandlers[host].favicon(req, res, function (err) {
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if (err) {
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next(err);
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return;
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}
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staticHandlers[host](req, res, next);
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});
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}
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2015-11-04 11:02:23 +00:00
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if (staticHandlers[host]) {
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if (staticHandlers[host].then) {
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staticHandlers[host].then(function () {
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2015-11-04 11:26:18 +00:00
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serveIt();
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2015-11-04 11:02:23 +00:00
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}, function (err) {
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res.send({
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error: {
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message: err.message
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, code: err.code
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}
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});
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});
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return;
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}
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2015-11-04 11:26:18 +00:00
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serveIt();
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2015-11-04 11:02:23 +00:00
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return;
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}
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staticHandlers[host] = PromiseA.resolve().then(function () {
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var fs = PromiseA.promisifyAll(require('fs'));
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// host can be spoofed by the user, so lets be safe
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// don't allow .. or / or whitespace
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// RFC says domains must start with a-zA-Z0-9 and follow with normal characters
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// HOWEVER, there are now Unicode character domains
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// punycode?
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//
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if (invalidHost.test(host)) {
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return PromiseA.reject({
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message: "invalid Host header"
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, code: "E_INVALID_HOST"
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});
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}
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return fs.readdirAsync(path.join(__dirname, 'sites-enabled')).then(function (nodes) {
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nodes.forEach(function (node) {
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if ('function' === typeof staticHandlers[host] && !staticHandlers[host].then) {
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return;
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}
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2015-11-04 11:26:18 +00:00
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// ignore .gitkeep and folders without a .
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if (0 === node.indexOf('.') || -1 === node.indexOf('.') || invalidHost.test(node)) {
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2015-11-04 11:02:23 +00:00
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return;
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}
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console.log('vhost static');
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console.log(node);
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staticHandlers[node] = require('serve-static')(path.join(__dirname, 'sites-enabled', node));
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2015-11-04 11:26:18 +00:00
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try {
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// TODO look for favicon
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staticHandlers[node].favicon = require('serve-favicon')(path.join(__dirname, 'sites-enabled', node, 'favicon.ico'));
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} catch(e) {
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staticHandlers[node].favicon = function (req, res, next) { next(); };
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}
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2015-11-04 11:02:23 +00:00
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});
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if (staticHandlers[host]) {
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2015-11-04 11:26:18 +00:00
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serveIt();
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2015-11-04 11:02:23 +00:00
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} else {
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next();
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}
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return staticHandlers[host];
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});
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});
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});
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workerApp = app;
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return app;
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2015-11-04 09:22:00 +00:00
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});
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return workerApp;
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}
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promiseServer = require('./lib/sni-server').create(info.certPaths, info.securePort, promiseApps);
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}
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process.on('message', function (msg) {
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if ('init' === msg.type) {
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init(msg);
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return;
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}
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console.log('[Worker] got unexpected message:');
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console.log(msg);
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});
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