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'use strict'
const test = require('tap').test
const net = require('node:net')
const Fastify = require('fastify')
const fastifyWebsocket = require('..')
const WebSocket = require('ws')
const split = require('split2')
test('Should run onRequest, preValidation, preHandler hooks', t => {
t.plan(7)
const fastify = Fastify()
t.teardown(() => fastify.close())
fastify.register(fastifyWebsocket)
fastify.register(async function (fastify) {
fastify.addHook('onRequest', async () => t.ok('called', 'onRequest'))
fastify.addHook('preParsing', async () => t.ok('called', 'preParsing'))
fastify.addHook('preValidation', async () => t.ok('called', 'preValidation'))
fastify.addHook('preHandler', async () => t.ok('called', 'preHandler'))
fastify.get('/echo', { websocket: true }, (socket) => {
socket.send('hello client')
t.teardown(() => socket.terminate())
socket.once('message', (chunk) => {
t.equal(chunk.toString(), 'hello server')
})
})
})
fastify.listen({ port: 0 }, err => {
t.error(err)
const ws = new WebSocket('ws://localhost:' + (fastify.server.address()).port + '/echo')
const client = WebSocket.createWebSocketStream(ws, { encoding: 'utf8' })
t.teardown(client.destroy.bind(client))
client.setEncoding('utf8')
client.write('hello server')
client.once('data', chunk => {
t.equal(chunk, 'hello client')
client.end()
})
})
})
test('Should not run onTimeout hook', t => {
t.plan(2)
const fastify = Fastify()
t.teardown(() => fastify.close())
fastify.register(fastifyWebsocket)
fastify.register(async function () {
fastify.addHook('onTimeout', async () => t.fail('called', 'onTimeout'))
fastify.get('/echo', { websocket: true }, (socket, request) => {
socket.send('hello client')
request.raw.setTimeout(50)
t.teardown(() => socket.terminate())
})
})
fastify.listen({ port: 0 }, err => {
t.error(err)
const ws = new WebSocket('ws://localhost:' + (fastify.server.address()).port + '/echo')
const client = WebSocket.createWebSocketStream(ws, { encoding: 'utf8' })
t.teardown(client.destroy.bind(client))
client.once('data', chunk => {
t.equal(chunk, 'hello client')
})
})
})
test('Should run onError hook before handler is executed (error thrown in onRequest hook)', t => {
t.plan(3)
const fastify = Fastify()
t.teardown(() => fastify.close())
fastify.register(fastifyWebsocket)
fastify.register(async function (fastify) {
fastify.addHook('onRequest', async () => { throw new Error('Fail') })
fastify.addHook('onError', async () => t.ok('called', 'onError'))
fastify.get('/echo', { websocket: true }, () => {
t.fail()
})
})
fastify.listen({ port: 0 }, function (err) {
t.error(err)
const ws = new WebSocket('ws://localhost:' + (fastify.server.address()).port + '/echo')
ws.on('unexpected-response', (_request, response) => t.equal(response.statusCode, 500))
})
})
test('Should run onError hook before handler is executed (error thrown in preValidation hook)', t => {
t.plan(3)
const fastify = Fastify()
t.teardown(() => fastify.close())
fastify.register(fastifyWebsocket)
fastify.register(async function (fastify) {
fastify.addHook('preValidation', async () => {
await Promise.resolve()
throw new Error('Fail')
})
fastify.addHook('onError', async () => t.ok('called', 'onError'))
fastify.get('/echo', { websocket: true }, () => {
t.fail()
})
})
fastify.listen({ port: 0 }, function (err) {
t.error(err)
const ws = new WebSocket('ws://localhost:' + (fastify.server.address()).port + '/echo')
ws.on('unexpected-response', (_request, response) => t.equal(response.statusCode, 500))
})
})
test('onError hooks can send a reply and prevent hijacking', t => {
t.plan(3)
const fastify = Fastify()
t.teardown(() => fastify.close())
fastify.register(fastifyWebsocket)
fastify.register(async function (fastify) {
fastify.addHook('preValidation', async () => {
await Promise.resolve()
throw new Error('Fail')
})
fastify.addHook('onError', async (_request, reply) => {
t.ok('called', 'onError')
await reply.code(501).send('there was an error')
})
fastify.get('/echo', { websocket: true }, () => {
t.fail()
})
})
fastify.listen({ port: 0 }, function (err) {
t.error(err)
const ws = new WebSocket('ws://localhost:' + (fastify.server.address()).port + '/echo')
ws.on('unexpected-response', (_request, response) => t.equal(response.statusCode, 501))
})
})
test('setErrorHandler functions can send a reply and prevent hijacking', t => {
t.plan(4)
const fastify = Fastify()
t.teardown(() => fastify.close())
fastify.register(fastifyWebsocket)
fastify.register(async function (fastify) {
fastify.addHook('preValidation', async () => {
await Promise.resolve()
throw new Error('Fail')
})
fastify.setErrorHandler(async (error, _request, reply) => {
t.ok('called', 'onError')
t.ok(error)
await reply.code(501).send('there was an error')
})
fastify.get('/echo', { websocket: true }, () => {
t.fail()
})
})
fastify.listen({ port: 0 }, function (err) {
t.error(err)
const ws = new WebSocket('ws://localhost:' + (fastify.server.address()).port + '/echo')
ws.on('unexpected-response', (_request, response) => t.equal(response.statusCode, 501))
})
})
test('Should not run onError hook if reply was already hijacked (error thrown in websocket handler)', t => {
t.plan(2)
const fastify = Fastify()
t.teardown(() => fastify.close())
fastify.register(fastifyWebsocket)
fastify.register(async function (fastify) {
fastify.addHook('onError', async () => t.fail('called', 'onError'))
fastify.get('/echo', { websocket: true }, async (socket) => {
t.teardown(() => socket.terminate())
throw new Error('Fail')
})
})
fastify.listen({ port: 0 }, function (err) {
t.error(err)
const ws = new WebSocket('ws://localhost:' + (fastify.server.address()).port + '/echo')
const client = WebSocket.createWebSocketStream(ws, { encoding: 'utf8' })
t.teardown(client.destroy.bind(client))
ws.on('close', code => t.equal(code, 1006))
})
})
test('Should not run preSerialization/onSend hooks', t => {
t.plan(2)
const fastify = Fastify()
t.teardown(() => fastify.close())
fastify.register(fastifyWebsocket)
fastify.register(async function (fastify) {
fastify.addHook('onSend', async () => t.fail('called', 'onSend'))
fastify.addHook('preSerialization', async () => t.fail('called', 'preSerialization'))
fastify.get('/echo', { websocket: true }, async (socket) => {
socket.send('hello client')
t.teardown(() => socket.terminate())
})
})
fastify.listen({ port: 0 }, err => {
t.error(err)
const ws = new WebSocket('ws://localhost:' + (fastify.server.address()).port + '/echo')
const client = WebSocket.createWebSocketStream(ws, { encoding: 'utf8' })
t.teardown(client.destroy.bind(client))
client.once('data', chunk => {
t.equal(chunk, 'hello client')
client.end()
})
})
})
test('Should not hijack reply for a normal http request in the internal onError hook', t => {
t.plan(2)
const fastify = Fastify()
t.teardown(() => fastify.close())
fastify.register(fastifyWebsocket)
fastify.register(async function (fastify) {
fastify.get('/', async () => {
throw new Error('Fail')
})
})
fastify.listen({ port: 0 }, err => {
t.error(err)
const port = fastify.server.address().port
const httpClient = net.createConnection({ port }, () => {
t.teardown(httpClient.destroy.bind(httpClient))
httpClient.write('GET / HTTP/1.1\r\nHOST: localhost\r\n\r\n')
httpClient.once('data', data => {
t.match(data.toString(), /Fail/i)
})
httpClient.end()
})
})
})
test('Should run async hooks and still deliver quickly sent messages', (t) => {
t.plan(3)
const fastify = Fastify()
t.teardown(() => fastify.close())
fastify.register(fastifyWebsocket)
fastify.register(async function (fastify) {
fastify.addHook(
'preValidation',
async () => await new Promise((resolve) => setTimeout(resolve, 25))
)
fastify.get('/echo', { websocket: true }, (socket) => {
socket.send('hello client')
t.teardown(() => socket.terminate())
socket.on('message', (message) => {
t.equal(message.toString('utf-8'), 'hello server')
})
})
})
fastify.listen({ port: 0 }, (err) => {
t.error(err)
const ws = new WebSocket(
'ws://localhost:' + fastify.server.address().port + '/echo'
)
const client = WebSocket.createWebSocketStream(ws, { encoding: 'utf8' })
t.teardown(client.destroy.bind(client))
client.setEncoding('utf8')
client.write('hello server')
client.once('data', (chunk) => {
t.equal(chunk, 'hello client')
client.end()
})
})
})
test('Should not hijack reply for an normal request to a websocket route that is sent a normal HTTP response in a hook', t => {
t.plan(2)
const fastify = Fastify()
t.teardown(() => fastify.close())
fastify.register(fastifyWebsocket)
fastify.register(async function (fastify) {
fastify.addHook('preValidation', async (_request, reply) => {
await Promise.resolve()
await reply.code(404).send('not found')
})
fastify.get('/echo', { websocket: true }, () => {
t.fail()
})
})
fastify.listen({ port: 0 }, err => {
t.error(err)
const port = fastify.server.address().port
const httpClient = net.createConnection({ port }, () => {
t.teardown(httpClient.destroy.bind(httpClient))
httpClient.write('GET /echo HTTP/1.1\r\nHOST: localhost\r\n\r\n')
httpClient.once('data', data => {
t.match(data.toString(), /not found/i)
})
httpClient.end()
})
})
})
test('Should not hijack reply for an WS request to a WS route that gets sent a normal HTTP response in a hook', t => {
t.plan(2)
const stream = split(JSON.parse)
const fastify = Fastify({ logger: { stream } })
fastify.register(fastifyWebsocket)
fastify.register(async function (fastify) {
fastify.addHook('preValidation', async (_request, reply) => {
await reply.code(404).send('not found')
})
fastify.get('/echo', { websocket: true }, () => {
t.fail()
})
})
stream.on('data', (chunk) => {
if (chunk.level >= 50) {
t.fail()
}
})
fastify.listen({ port: 0 }, err => {
t.error(err)
const ws = new WebSocket('ws://localhost:' + (fastify.server.address()).port + '/echo')
ws.on('error', error => {
t.ok(error)
ws.close()
fastify.close()
})
})
})
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