cleaned up all of the custom HTTP handling logic
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tigerbot
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ab31bae6ff
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ab011d1829
@ -21,108 +21,6 @@ module.exports.create = function (deps, config) {
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var tls = require('tls');
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var domainMatches = require('./match-domain').match;
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var tcpRouter = {
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_map: { }
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, _create: function (address, port) {
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// port provides hinting for http, smtp, etc
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return function (conn, firstChunk, opts) {
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console.log('[tcpRouter] ' + address + ':' + port + ' ' + (opts.servername || ''));
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var m;
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var str;
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var hostname;
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var newHeads;
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// TODO test per-module
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// Maybe HTTP
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if (firstChunk[0] > 32 && firstChunk[0] < 127) {
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str = firstChunk.toString();
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m = str.match(/(?:^|[\r\n])Host: ([^\r\n]+)[\r\n]*/im);
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hostname = (m && m[1].toLowerCase() || '').split(':')[0];
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console.log('[tcpRouter] hostname', hostname);
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if (/HTTP\//i.test(str)) {
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//conn.__service = 'http';
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}
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}
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if (!hostname) {
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// TODO allow tcp tunneling
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// TODO we need some way of tagging tcp as either terminated tls or insecure
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conn.write(
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"HTTP/1.1 404 Not Found\r\n"
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+ "Date: Fri, 31 Dec 1999 23:59:59 GMT\r\n"
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+ "Content-Type: text/html\r\n"
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+ "Content-Length: " + 9 + "\r\n"
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+ "\r\n"
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+ "Not Found"
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);
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conn.end();
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return;
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}
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// Poor-man's http proxy
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// XXX SECURITY XXX: should strip existing X-Forwarded headers
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newHeads =
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[ "X-Forwarded-Proto: " + (opts.encrypted ? 'https' : 'http')
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, "X-Forwarded-For: " + (opts.remoteAddress || conn.remoteAddress)
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, "X-Forwarded-Host: " + hostname
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];
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if (!opts.encrypted) {
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// a exists-only header that a bad client could not remove
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newHeads.push("X-Not-Encrypted: yes");
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}
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if (opts.servername) {
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newHeads.push("X-Forwarded-Sni: " + opts.servername);
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if (opts.servername !== hostname) {
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// an exists-only header that a bad client could not remove
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newHeads.push("X-Two-Servernames: yes");
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}
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}
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firstChunk = firstChunk.toString('utf8');
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// JSON.stringify("Host: example.com\r\nNext: Header".replace(/(Host: [^\r\n]*)/i, "$1" + "\r\n" + "X: XYZ"))
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firstChunk = firstChunk.replace(/(Host: [^\r\n]*)/i, "$1" + "\r\n" + newHeads.join("\r\n"));
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process.nextTick(function () {
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conn.unshift(Buffer.from(firstChunk, 'utf8'));
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});
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//
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// hard-coded routes for the admin interface
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if (
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/\blocalhost\.admin\./.test(hostname) || /\badmin\.localhost\./.test(hostname)
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|| /\blocalhost\.alpha\./.test(hostname) || /\balpha\.localhost\./.test(hostname)
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) {
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if (!modules.admin) {
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modules.admin = require('./modules/admin.js').create(deps, config);
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}
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modules.admin.emit('connection', conn);
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return;
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}
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// TODO static file handiling and such or whatever
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if (!modules.http) {
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modules.http = require('./modules/http.js').create(deps, config);
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}
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opts.hostname = hostname;
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conn.__opts = opts;
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modules.http.emit('connection', conn);
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};
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}
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, get: function getTcpRouter(address, port) {
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address = address || '0.0.0.0';
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var id = address + ':' + port;
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if (!tcpRouter._map[id]) {
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tcpRouter._map[id] = tcpRouter._create(address, port);
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}
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return tcpRouter._map[id];
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}
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};
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var tlsRouter = {
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proxy: function (socket, opts, mod) {
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var newConn = deps.net.createConnection({
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@ -231,25 +129,36 @@ module.exports.create = function (deps, config) {
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// TLS byte 1 is handshake and byte 6 is client hello
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if (0x16 === firstChunk[0]/* && 0x01 === firstChunk[5]*/) {
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console.log('tryTls');
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opts.servername = (parseSni(firstChunk)||'').toLowerCase() || 'localhost.invalid';
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tlsRouter.processSocket(conn, firstChunk, opts);
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return;
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}
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console.log('tryTcp');
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if (opts.hyperPeek) {
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// even though we've already peeked, this logic is just as well to let be
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// since it works properly either way, unlike the tls socket
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conn.once('data', function (chunk) {
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console.log('hyperPeek re-peek data', chunk.toString('utf8'));
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tcpRouter.get(opts.localAddress || conn.localAddress, conn.localPort)(conn, chunk, opts);
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// This doesn't work with TLS, but now that we know this isn't a TLS connection we can
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// unshift the first chunk back onto the connection for future use. The unshift should
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// happen after any listeners are attached to it but before any new data comes in.
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if (!opts.hyperPeek) {
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process.nextTick(function () {
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conn.unshift(firstChunk);
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});
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return;
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}
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tcpRouter.get(opts.localAddress || conn.localAddress, conn.localPort)(conn, firstChunk, opts);
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// Connection is not TLS, check for HTTP next.
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if (firstChunk[0] > 32 && firstChunk[0] < 127) {
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var firstStr = firstChunk.toString();
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if (/HTTP\//i.test(firstStr)) {
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if (!modules.http) {
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modules.http = require('./modules/http.js').create(deps, config);
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}
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conn.__opts = opts;
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modules.http.emit('connection', conn);
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return;
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}
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}
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console.warn('failed to identify protocol from first chunk', firstChunk);
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conn.close();
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}
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function netHandler(conn, opts) {
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opts = opts || {};
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@ -60,7 +60,5 @@ module.exports.create = function (deps, conf) {
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});
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/* device, addresses, cwd, http */
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var app = require('../app.js')(deps, conf, opts);
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var http = require('http');
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return http.createServer(app);
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return require('../app.js')(deps, conf, opts);
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};
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@ -2,8 +2,16 @@
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module.exports.create = function (deps, conf) {
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var app = require('express')();
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var adminApp = require('./admin').create(deps, conf);
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var domainMatches = require('../match-domain').match;
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var adminDomains = [
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/\blocalhost\.admin\./
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, /\blocalhost\.alpha\./
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, /\badmin\.localhost\./
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, /\balpha\.localhost\./
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];
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// We handle both HTTPS and HTTP traffic on the same ports, and we want to redirect
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// any unencrypted requests to the same port they came from unless it came in on
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// the default HTTP port, in which case there wont be a port specified in the host.
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@ -17,6 +25,18 @@ module.exports.create = function (deps, conf) {
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redirecter(req, res, next);
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}
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function handleAdmin(req, res, next) {
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var admin = adminDomains.some(function (re) {
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return re.test(req.headers.host);
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});
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if (admin) {
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adminApp(req, res);
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} else {
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next();
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}
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}
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function respond404(req, res) {
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res.writeHead(404);
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res.end('Not Found');
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@ -36,6 +56,14 @@ module.exports.create = function (deps, conf) {
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, toProxy: true
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});
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// We want to override the default value for some headers with the extra information we
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// have available to us in the opts object attached to the connection.
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proxy.on('proxyReq', function (proxyReq, req) {
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var conn = req.connection;
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var opts = conn.__opts;
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proxyReq.setHeader('X-Forwarded-For', opts.remoteAddress || conn.remoteAddress);
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});
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return function (req, res, next) {
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var hostname = req.headers.host.split(':')[0];
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var relevant = mod.domains.some(function (pattern) {
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@ -51,6 +79,7 @@ module.exports.create = function (deps, conf) {
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}
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app.use(redirectHttps);
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app.use(handleAdmin);
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(conf.http.modules || []).forEach(function (mod) {
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if (mod.name === 'proxy') {
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