mozilla-central/testing/xpcshell/node-ws/test/websocket-server.test.js (file symbol)

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/* eslint no-unused-vars: ["error", { "varsIgnorePattern": "^ws$" }] */
'use strict';
const assert = require('assert');
const crypto = require('crypto');
const https = require('https');
const http = require('http');
const path = require('path');
const net = require('net');
const fs = require('fs');
const os = require('os');
const Sender = require('../lib/sender');
const WebSocket = require('..');
const { NOOP } = require('../lib/constants');
describe('WebSocketServer', () => {
describe('#ctor', () => {
it('throws an error if no option object is passed', () => {
assert.throws(
() => new WebSocket.Server(),
new RegExp(
'^TypeError: One and only one of the "port", "server", or ' +
'"noServer" options must be specified$'
)
);
});
describe('options', () => {
it('throws an error if required options are not specified', () => {
assert.throws(
() => new WebSocket.Server({}),
new RegExp(
'^TypeError: One and only one of the "port", "server", or ' +
'"noServer" options must be specified$'
)
);
});
it('throws an error if mutually exclusive options are specified', () => {
const server = http.createServer();
const variants = [
{ port: 0, noServer: true, server },
{ port: 0, noServer: true },
{ port: 0, server },
{ noServer: true, server }
];
for (const options of variants) {
assert.throws(
() => new WebSocket.Server(options),
new RegExp(
'^TypeError: One and only one of the "port", "server", or ' +
'"noServer" options must be specified$'
)
);
}
});
it('exposes options passed to constructor', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
assert.strictEqual(wss.options.port, 0);
wss.close(done);
});
});
it('accepts the `maxPayload` option', (done) => {
const maxPayload = 20480;
const wss = new WebSocket.Server(
{
perMessageDeflate: true,
maxPayload,
port: 0
},
() => {
const ws = new WebSocket(`ws://localhost:${wss.address().port}`);
ws.on('open', ws.close);
}
);
wss.on('connection', (ws) => {
assert.strictEqual(ws._receiver._maxPayload, maxPayload);
assert.strictEqual(
ws._receiver._extensions['permessage-deflate']._maxPayload,
maxPayload
);
wss.close(done);
});
});
it('honors the `WebSocket` option', (done) => {
class CustomWebSocket extends WebSocket.WebSocket {
get foo() {
return 'foo';
}
}
const wss = new WebSocket.Server(
{
port: 0,
WebSocket: CustomWebSocket
},
() => {
const ws = new WebSocket(`ws://localhost:${wss.address().port}`);
ws.on('open', ws.close);
}
);
wss.on('connection', (ws) => {
assert.ok(ws instanceof CustomWebSocket);
assert.strictEqual(ws.foo, 'foo');
wss.close(done);
});
});
});
it('emits an error if http server bind fails', (done) => {
const wss1 = new WebSocket.Server({ port: 0 }, () => {
const wss2 = new WebSocket.Server({
port: wss1.address().port
});
wss2.on('error', () => wss1.close(done));
});
});
it('starts a server on a given port', (done) => {
const port = 1337;
const wss = new WebSocket.Server({ port }, () => {
const ws = new WebSocket(`ws://localhost:${port}`);
ws.on('open', ws.close);
});
wss.on('connection', () => wss.close(done));
});
it('binds the server on any IPv6 address when available', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
assert.strictEqual(wss._server.address().address, '::');
wss.close(done);
});
});
it('uses a precreated http server', (done) => {
const server = http.createServer();
server.listen(0, () => {
const wss = new WebSocket.Server({ server });
wss.on('connection', () => {
server.close(done);
});
const ws = new WebSocket(`ws://localhost:${server.address().port}`);
ws.on('open', ws.close);
});
});
it('426s for non-Upgrade requests', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
http.get(`http://localhost:${wss.address().port}`, (res) => {
let body = '';
assert.strictEqual(res.statusCode, 426);
res.on('data', (chunk) => {
body += chunk;
});
res.on('end', () => {
assert.strictEqual(body, http.STATUS_CODES[426]);
wss.close(done);
});
});
});
});
it('uses a precreated http server listening on unix socket', function (done) {
//
// Skip this test on Windows. The URL parser:
//
// - Throws an error if the named pipe uses backward slashes.
// - Incorrectly parses the path if the named pipe uses forward slashes.
//
if (process.platform === 'win32') return this.skip();
const server = http.createServer();
const sockPath = path.join(
os.tmpdir(),
`ws.${crypto.randomBytes(16).toString('hex')}.sock`
);
server.listen(sockPath, () => {
const wss = new WebSocket.Server({ server });
wss.on('connection', (ws, req) => {
if (wss.clients.size === 1) {
assert.strictEqual(req.url, '/foo?bar=bar');
} else {
assert.strictEqual(req.url, '/');
for (const client of wss.clients) {
client.close();
}
server.close(done);
}
});
const ws = new WebSocket(`ws+unix://${sockPath}:/foo?bar=bar`);
ws.on('open', () => new WebSocket(`ws+unix://${sockPath}`));
});
});
});
describe('#address', () => {
it('returns the address of the server', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const addr = wss.address();
assert.deepStrictEqual(addr, wss._server.address());
wss.close(done);
});
});
it('throws an error when operating in "noServer" mode', () => {
const wss = new WebSocket.Server({ noServer: true });
assert.throws(() => {
wss.address();
}, /^Error: The server is operating in "noServer" mode$/);
});
it('returns `null` if called after close', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
wss.close(() => {
assert.strictEqual(wss.address(), null);
done();
});
});
});
});
describe('#close', () => {
it('does not throw if called multiple times', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
wss.on('close', done);
wss.close();
wss.close();
wss.close();
});
});
it("doesn't close a precreated server", (done) => {
const server = http.createServer();
const realClose = server.close;
server.close = () => {
done(new Error('Must not close pre-created server'));
};
const wss = new WebSocket.Server({ server });
wss.on('connection', () => {
wss.close();
server.close = realClose;
server.close(done);
});
server.listen(0, () => {
const ws = new WebSocket(`ws://localhost:${server.address().port}`);
ws.on('open', ws.close);
});
});
it('invokes the callback in noServer mode', (done) => {
const wss = new WebSocket.Server({ noServer: true });
wss.close(done);
});
it('cleans event handlers on precreated server', (done) => {
const server = http.createServer();
const wss = new WebSocket.Server({ server });
server.listen(0, () => {
wss.close(() => {
assert.strictEqual(server.listenerCount('listening'), 0);
assert.strictEqual(server.listenerCount('upgrade'), 0);
assert.strictEqual(server.listenerCount('error'), 0);
server.close(done);
});
});
});
it("emits the 'close' event after the server closes", (done) => {
let serverCloseEventEmitted = false;
const wss = new WebSocket.Server({ port: 0 }, () => {
net.createConnection({ port: wss.address().port });
});
wss._server.on('connection', (socket) => {
wss.close();
//
// The server is closing. Ensure this does not emit a `'close'`
// event before the server is actually closed.
//
wss.close();
process.nextTick(() => {
socket.end();
});
});
wss._server.on('close', () => {
serverCloseEventEmitted = true;
});
wss.on('close', () => {
assert.ok(serverCloseEventEmitted);
done();
});
});
it("emits the 'close' event if client tracking is disabled", (done) => {
const wss = new WebSocket.Server({
noServer: true,
clientTracking: false
});
wss.on('close', done);
wss.close();
});
it('calls the callback if the server is already closed', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
wss.close(() => {
assert.strictEqual(wss._state, 2);
wss.close((err) => {
assert.ok(err instanceof Error);
assert.strictEqual(err.message, 'The server is not running');
done();
});
});
});
});
it("emits the 'close' event if the server is already closed", (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
wss.close(() => {
assert.strictEqual(wss._state, 2);
wss.on('close', done);
wss.close();
});
});
});
});
describe('#clients', () => {
it('returns a list of connected clients', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
assert.strictEqual(wss.clients.size, 0);
const ws = new WebSocket(`ws://localhost:${wss.address().port}`);
ws.on('open', ws.close);
});
wss.on('connection', () => {
assert.strictEqual(wss.clients.size, 1);
wss.close(done);
});
});
it('can be disabled', (done) => {
const wss = new WebSocket.Server(
{ port: 0, clientTracking: false },
() => {
assert.strictEqual(wss.clients, undefined);
const ws = new WebSocket(`ws://localhost:${wss.address().port}`);
ws.on('open', () => ws.close());
}
);
wss.on('connection', (ws) => {
assert.strictEqual(wss.clients, undefined);
ws.on('close', () => wss.close(done));
});
});
it('is updated when client terminates the connection', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const ws = new WebSocket(`ws://localhost:${wss.address().port}`);
ws.on('open', () => ws.terminate());
});
wss.on('connection', (ws) => {
ws.on('close', () => {
assert.strictEqual(wss.clients.size, 0);
wss.close(done);
});
});
});
it('is updated when client closes the connection', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const ws = new WebSocket(`ws://localhost:${wss.address().port}`);
ws.on('open', () => ws.close());
});
wss.on('connection', (ws) => {
ws.on('close', () => {
assert.strictEqual(wss.clients.size, 0);
wss.close(done);
});
});
});
});
describe('#shouldHandle', () => {
it('returns true when the path matches', () => {
const wss = new WebSocket.Server({ noServer: true, path: '/foo' });
assert.strictEqual(wss.shouldHandle({ url: '/foo' }), true);
assert.strictEqual(wss.shouldHandle({ url: '/foo?bar=baz' }), true);
});
it("returns false when the path doesn't match", () => {
const wss = new WebSocket.Server({ noServer: true, path: '/foo' });
assert.strictEqual(wss.shouldHandle({ url: '/bar' }), false);
});
});
describe('#handleUpgrade', () => {
it('can be used for a pre-existing server', (done) => {
const server = http.createServer();
server.listen(0, () => {
const wss = new WebSocket.Server({ noServer: true });
server.on('upgrade', (req, socket, head) => {
wss.handleUpgrade(req, socket, head, (ws) => {
ws.send('hello');
ws.close();
});
});
const ws = new WebSocket(`ws://localhost:${server.address().port}`);
ws.on('message', (message, isBinary) => {
assert.deepStrictEqual(message, Buffer.from('hello'));
assert.ok(!isBinary);
server.close(done);
});
});
});
it("closes the connection when path doesn't match", (done) => {
const wss = new WebSocket.Server({ port: 0, path: '/ws' }, () => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version': 13
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 400);
wss.close(done);
});
});
});
it('closes the connection when protocol version is Hixie-76', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'WebSocket',
'Sec-WebSocket-Key1': '4 @1 46546xW%0l 1 5',
'Sec-WebSocket-Key2': '12998 5 Y3 1 .P00',
'Sec-WebSocket-Protocol': 'sample'
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 400);
const chunks = [];
res.on('data', (chunk) => {
chunks.push(chunk);
});
res.on('end', () => {
assert.strictEqual(
Buffer.concat(chunks).toString(),
'Missing or invalid Sec-WebSocket-Key header'
);
wss.close(done);
});
});
});
});
});
describe('#completeUpgrade', () => {
it('throws an error if called twice with the same socket', (done) => {
const server = http.createServer();
server.listen(0, () => {
const wss = new WebSocket.Server({ noServer: true });
server.on('upgrade', (req, socket, head) => {
wss.handleUpgrade(req, socket, head, (ws) => {
ws.close();
});
assert.throws(
() => wss.handleUpgrade(req, socket, head, NOOP),
(err) => {
assert.ok(err instanceof Error);
assert.strictEqual(
err.message,
'server.handleUpgrade() was called more than once with the ' +
'same socket, possibly due to a misconfiguration'
);
return true;
}
);
});
const ws = new WebSocket(`ws://localhost:${server.address().port}`);
ws.on('open', () => {
ws.on('close', () => {
server.close(done);
});
});
});
});
});
describe('Connection establishing', () => {
it('fails if the HTTP method is not GET', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const req = http.request({
method: 'POST',
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket'
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 405);
const chunks = [];
res.on('data', (chunk) => {
chunks.push(chunk);
});
res.on('end', () => {
assert.strictEqual(
Buffer.concat(chunks).toString(),
'Invalid HTTP method'
);
wss.close(done);
});
});
req.end();
});
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it('fails if the Upgrade header field value is not "websocket"', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'foo'
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 400);
const chunks = [];
res.on('data', (chunk) => {
chunks.push(chunk);
});
res.on('end', () => {
assert.strictEqual(
Buffer.concat(chunks).toString(),
'Invalid Upgrade header'
);
wss.close(done);
});
});
});
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it('fails if the Sec-WebSocket-Key header is invalid (1/2)', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket'
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 400);
const chunks = [];
res.on('data', (chunk) => {
chunks.push(chunk);
});
res.on('end', () => {
assert.strictEqual(
Buffer.concat(chunks).toString(),
'Missing or invalid Sec-WebSocket-Key header'
);
wss.close(done);
});
});
});
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it('fails if the Sec-WebSocket-Key header is invalid (2/2)', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'P5l8BJcZwRc='
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 400);
const chunks = [];
res.on('data', (chunk) => {
chunks.push(chunk);
});
res.on('end', () => {
assert.strictEqual(
Buffer.concat(chunks).toString(),
'Missing or invalid Sec-WebSocket-Key header'
);
wss.close(done);
});
});
});
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it('fails if the Sec-WebSocket-Version header is invalid (1/2)', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ=='
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 400);
const chunks = [];
res.on('data', (chunk) => {
chunks.push(chunk);
});
res.on('end', () => {
assert.strictEqual(
Buffer.concat(chunks).toString(),
'Missing or invalid Sec-WebSocket-Version header'
);
wss.close(done);
});
});
});
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it('fails if the Sec-WebSocket-Version header is invalid (2/2)', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version': 12
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 400);
const chunks = [];
res.on('data', (chunk) => {
chunks.push(chunk);
});
res.on('end', () => {
assert.strictEqual(
Buffer.concat(chunks).toString(),
'Missing or invalid Sec-WebSocket-Version header'
);
wss.close(done);
});
});
});
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it('fails is the Sec-WebSocket-Protocol header is invalid', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version': 13,
'Sec-WebSocket-Protocol': 'foo;bar'
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 400);
const chunks = [];
res.on('data', (chunk) => {
chunks.push(chunk);
});
res.on('end', () => {
assert.strictEqual(
Buffer.concat(chunks).toString(),
'Invalid Sec-WebSocket-Protocol header'
);
wss.close(done);
});
});
});
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it('fails if the Sec-WebSocket-Extensions header is invalid', (done) => {
const wss = new WebSocket.Server(
{
perMessageDeflate: true,
port: 0
},
() => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version': 13,
'Sec-WebSocket-Extensions':
'permessage-deflate; server_max_window_bits=foo'
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 400);
const chunks = [];
res.on('data', (chunk) => {
chunks.push(chunk);
});
res.on('end', () => {
assert.strictEqual(
Buffer.concat(chunks).toString(),
'Invalid or unacceptable Sec-WebSocket-Extensions header'
);
wss.close(done);
});
});
}
);
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it("emits the 'wsClientError' event", (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const req = http.request({
method: 'POST',
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket'
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 400);
wss.close(done);
});
req.end();
});
wss.on('wsClientError', (err, socket, request) => {
assert.ok(err instanceof Error);
assert.strictEqual(err.message, 'Invalid HTTP method');
assert.ok(request instanceof http.IncomingMessage);
assert.strictEqual(request.method, 'POST');
socket.end('HTTP/1.1 400 Bad Request\r\n\r\n');
});
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it('fails if the WebSocket server is closing or closed', (done) => {
const server = http.createServer();
const wss = new WebSocket.Server({ noServer: true });
server.on('upgrade', (req, socket, head) => {
wss.close();
wss.handleUpgrade(req, socket, head, () => {
done(new Error('Unexpected callback invocation'));
});
});
server.listen(0, () => {
const ws = new WebSocket(`ws://localhost:${server.address().port}`);
ws.on('unexpected-response', (req, res) => {
assert.strictEqual(res.statusCode, 503);
res.resume();
server.close(done);
});
});
});
it('handles unsupported extensions', (done) => {
const wss = new WebSocket.Server(
{
perMessageDeflate: true,
port: 0
},
() => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version': 13,
'Sec-WebSocket-Extensions': 'foo; bar'
}
});
req.on('upgrade', (res, socket, head) => {
if (head.length) socket.unshift(head);
socket.once('data', (chunk) => {
assert.strictEqual(chunk[0], 0x88);
socket.destroy();
wss.close(done);
});
});
}
);
wss.on('connection', (ws) => {
assert.strictEqual(ws.extensions, '');
ws.close();
});
});
describe('`verifyClient`', () => {
it('can reject client synchronously', (done) => {
const wss = new WebSocket.Server(
{
verifyClient: () => false,
port: 0
},
() => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version': 8
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 401);
wss.close(done);
});
}
);
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it('can accept client synchronously', (done) => {
const server = https.createServer({
cert: fs.readFileSync('test/fixtures/certificate.pem'),
key: fs.readFileSync('test/fixtures/key.pem')
});
const wss = new WebSocket.Server({
verifyClient: (info) => {
assert.strictEqual(info.origin, 'https://example.com');
assert.strictEqual(info.req.headers.foo, 'bar');
assert.ok(info.secure, true);
return true;
},
server
});
wss.on('connection', () => {
server.close(done);
});
server.listen(0, () => {
const ws = new WebSocket(`wss://localhost:${server.address().port}`, {
headers: { Origin: 'https://example.com', foo: 'bar' },
rejectUnauthorized: false
});
ws.on('open', ws.close);
});
});
it('can accept client asynchronously', (done) => {
const wss = new WebSocket.Server(
{
verifyClient: (o, cb) => process.nextTick(cb, true),
port: 0
},
() => {
const ws = new WebSocket(`ws://localhost:${wss.address().port}`);
ws.on('open', ws.close);
}
);
wss.on('connection', () => wss.close(done));
});
it('can reject client asynchronously', (done) => {
const wss = new WebSocket.Server(
{
verifyClient: (info, cb) => process.nextTick(cb, false),
port: 0
},
() => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version': 8
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 401);
wss.close(done);
});
}
);
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it('can reject client asynchronously w/ status code', (done) => {
const wss = new WebSocket.Server(
{
verifyClient: (info, cb) => process.nextTick(cb, false, 404),
port: 0
},
() => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version': 8
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 404);
wss.close(done);
});
}
);
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
it('can reject client asynchronously w/ custom headers', (done) => {
const wss = new WebSocket.Server(
{
verifyClient: (info, cb) => {
process.nextTick(cb, false, 503, '', { 'Retry-After': 120 });
},
port: 0
},
() => {
const req = http.get({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version': 8
}
});
req.on('response', (res) => {
assert.strictEqual(res.statusCode, 503);
assert.strictEqual(res.headers['retry-after'], '120');
wss.close(done);
});
}
);
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
});
});
it("doesn't emit the 'connection' event if socket is closed prematurely", (done) => {
const server = http.createServer();
server.listen(0, () => {
const wss = new WebSocket.Server({
verifyClient: ({ req: { socket } }, cb) => {
assert.strictEqual(socket.readable, true);
assert.strictEqual(socket.writable, true);
socket.on('end', () => {
assert.strictEqual(socket.readable, false);
assert.strictEqual(socket.writable, true);
cb(true);
});
},
server
});
wss.on('connection', () => {
done(new Error("Unexpected 'connection' event"));
});
const socket = net.connect(
{
port: server.address().port,
allowHalfOpen: true
},
() => {
socket.end(
[
'GET / HTTP/1.1',
'Host: localhost',
'Upgrade: websocket',
'Connection: Upgrade',
'Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version: 13',
'\r\n'
].join('\r\n')
);
}
);
socket.on('end', () => {
wss.close();
server.close(done);
});
});
});
it('handles data passed along with the upgrade request', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const req = http.request({
port: wss.address().port,
headers: {
Connection: 'Upgrade',
Upgrade: 'websocket',
'Sec-WebSocket-Key': 'dGhlIHNhbXBsZSBub25jZQ==',
'Sec-WebSocket-Version': 13
}
});
const list = Sender.frame(Buffer.from('Hello'), {
fin: true,
rsv1: false,
opcode: 0x01,
mask: true,
readOnly: false
});
req.write(Buffer.concat(list));
req.end();
});
wss.on('connection', (ws) => {
ws.on('message', (data, isBinary) => {
assert.deepStrictEqual(data, Buffer.from('Hello'));
assert.ok(!isBinary);
wss.close(done);
});
});
});
describe('`handleProtocols`', () => {
it('allows to select a subprotocol', (done) => {
const handleProtocols = (protocols, request) => {
assert.ok(request instanceof http.IncomingMessage);
assert.strictEqual(request.url, '/');
return Array.from(protocols).pop();
};
const wss = new WebSocket.Server({ handleProtocols, port: 0 }, () => {
const ws = new WebSocket(`ws://localhost:${wss.address().port}`, [
'foo',
'bar'
]);
ws.on('open', () => {
assert.strictEqual(ws.protocol, 'bar');
wss.close(done);
});
});
wss.on('connection', (ws) => {
ws.close();
});
});
});
it("emits the 'headers' event", (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const ws = new WebSocket(`ws://localhost:${wss.address().port}`);
ws.on('open', ws.close);
});
wss.on('headers', (headers, request) => {
assert.deepStrictEqual(headers.slice(0, 3), [
'HTTP/1.1 101 Switching Protocols',
'Upgrade: websocket',
'Connection: Upgrade'
]);
assert.ok(request instanceof http.IncomingMessage);
assert.strictEqual(request.url, '/');
wss.on('connection', () => wss.close(done));
});
});
});
describe('permessage-deflate', () => {
it('is disabled by default', (done) => {
const wss = new WebSocket.Server({ port: 0 }, () => {
const ws = new WebSocket(`ws://localhost:${wss.address().port}`);
ws.on('open', ws.close);
});
wss.on('connection', (ws, req) => {
assert.strictEqual(
req.headers['sec-websocket-extensions'],
'permessage-deflate; client_max_window_bits'
);
assert.strictEqual(ws.extensions, '');
wss.close(done);
});
});
it('uses configuration options', (done) => {
const wss = new WebSocket.Server(
{
perMessageDeflate: { clientMaxWindowBits: 8 },
port: 0
},
() => {
const ws = new WebSocket(`ws://localhost:${wss.address().port}`);
ws.on('upgrade', (res) => {
assert.strictEqual(
res.headers['sec-websocket-extensions'],
'permessage-deflate; client_max_window_bits=8'
);
wss.close(done);
});
}
);
wss.on('connection', (ws) => {
ws.close();
});
});
});
});