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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const assert = require('assert');
const tls = require('tls');
const net = require('net');
const crypto = require('crypto');
const fixtures = require('../common/fixtures');
const keys = crypto.randomBytes(48);
const serverLog = [];
const ticketLog = [];
let s;
let serverCount = 0;
function createServer() {
const id = serverCount++;
let counter = 0;
let previousKey = null;
const server = tls.createServer({
key: fixtures.readKey('agent1-key.pem'),
cert: fixtures.readKey('agent1-cert.pem'),
ticketKeys: keys
}, function(c) {
serverLog.push(id);
// TODO(@sam-github) Triggers close_notify before NewSessionTicket bug.
// c.end();
c.end('x');
counter++;
// Rotate ticket keys
//
// Take especial care to account for TLS1.2 and TLS1.3 differences around
// when ticket keys are encrypted. In TLS1.2, they are encrypted before the
// handshake complete callback, but in TLS1.3, they are encrypted after.
// There is no callback or way for us to know when they were sent, so hook
// the client's reception of the keys, and use it as proof that the current
// keys were used, and its safe to rotate them.
//
// Rotation can occur right away if the session was reused, the keys were
// already decrypted or we wouldn't have a reused session.
function setTicketKeys(keys) {
if (c.isSessionReused())
server.setTicketKeys(keys);
else
s.once('session', () => {
server.setTicketKeys(keys);
});
}
if (counter === 1) {
previousKey = server.getTicketKeys();
assert.strictEqual(previousKey.compare(keys), 0);
setTicketKeys(crypto.randomBytes(48));
} else if (counter === 2) {
setTicketKeys(previousKey);
} else if (counter === 3) {
// Use keys from counter=2
} else {
throw new Error('UNREACHABLE');
}
});
return server;
}
const naturalServers = [ createServer(), createServer(), createServer() ];
// 3x servers
const servers = naturalServers.concat(naturalServers).concat(naturalServers);
// Create one TCP server and balance sockets to multiple TLS server instances
const shared = net.createServer(function(c) {
servers.shift().emit('connection', c);
}).listen(0, function() {
start(function() {
shared.close();
});
});
// 'session' events only occur for new sessions. The first connection is new.
// After, for each set of 3 connections, the middle connection is made when the
// server has random keys set, so the client's ticket is silently ignored, and a
// new ticket is sent.
const onNewSession = common.mustCall((s, session) => {
assert(session);
assert.strictEqual(session.compare(s.getSession()), 0);
}, 4);
function start(callback) {
let sess = null;
let left = servers.length;
function connect() {
s = tls.connect(shared.address().port, {
session: sess,
rejectUnauthorized: false
}, function() {
if (s.isSessionReused())
ticketLog.push(s.getTLSTicket().toString('hex'));
});
s.on('data', () => {
s.end();
});
s.on('close', function() {
if (--left === 0)
callback();
else
connect();
});
s.on('session', (session) => {
sess = sess || session;
});
s.once('session', (session) => onNewSession(s, session));
s.once('session', () => ticketLog.push(s.getTLSTicket().toString('hex')));
}
connect();
}
process.on('exit', function() {
assert.strictEqual(ticketLog.length, serverLog.length);
for (let i = 0; i < naturalServers.length - 1; i++) {
assert.notStrictEqual(serverLog[i], serverLog[i + 1]);
assert.strictEqual(ticketLog[i], ticketLog[i + 1]);
// 2nd connection should have different ticket
assert.notStrictEqual(ticketLog[i], ticketLog[i + naturalServers.length]);
// 3rd connection should have the same ticket
assert.strictEqual(ticketLog[i], ticketLog[i + naturalServers.length * 2]);
}
});
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