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server.mjs
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server.mjs
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import { once } from 'node:events'
import { createServer } from 'node:http'
import { join } from 'node:path'
import process from 'node:process'
import { fileURLToPath } from 'node:url'
import { createReadStream } from 'node:fs'
import { setTimeout as sleep } from 'node:timers/promises'
const tests = fileURLToPath(join(import.meta.url, '../../tests'))
// https://web-platform-tests.org/tools/wptserve/docs/stash.html
class Stash extends Map {
take (key) {
if (this.has(key)) {
const value = this.get(key)
this.delete(key)
return value.value
}
}
put (key, value, path) {
this.set(key, { value, path })
}
}
const stash = new Stash()
const server = createServer(async (req, res) => {
const fullUrl = new URL(req.url, `http://localhost:${server.address().port}`)
switch (fullUrl.pathname) {
case '/interfaces/dom.idl':
case '/interfaces/html.idl':
case '/interfaces/fetch.idl':
case '/interfaces/referrer-policy.idl':
case '/xhr/resources/utf16-bom.json':
case '/fetch/data-urls/resources/base64.json':
case '/fetch/data-urls/resources/data-urls.json':
case '/fetch/api/resources/empty.txt':
case '/fetch/api/resources/data.json': {
// https://github.com/web-platform-tests/wpt/blob/6ae3f702a332e8399fab778c831db6b7dca3f1c6/fetch/api/resources/data.json
return createReadStream(join(tests, fullUrl.pathname))
.on('end', () => res.end())
.pipe(res)
}
case '/fetch/api/resources/trickle.py': {
// Note: python's time.sleep(...) takes seconds, while setTimeout
// takes ms.
const delay = parseFloat(fullUrl.searchParams.get('ms') ?? 500)
const count = parseInt(fullUrl.searchParams.get('count') ?? 50)
// eslint-disable-next-line no-unused-vars
for await (const chunk of req); // read request body
await sleep(delay)
if (!fullUrl.searchParams.has('notype')) {
res.setHeader('Content-type', 'text/plain')
}
res.statusCode = 200
await sleep(delay)
for (let i = 0; i < count; i++) {
res.write('TEST_TRICKLE\n')
await sleep(delay)
}
res.end()
break
}
case '/fetch/api/resources/infinite-slow-response.py': {
// https://github.com/web-platform-tests/wpt/blob/master/fetch/api/resources/infinite-slow-response.py
const stateKey = fullUrl.searchParams.get('stateKey') ?? ''
const abortKey = fullUrl.searchParams.get('abortKey') ?? ''
if (stateKey) {
stash.put(stateKey, 'open', fullUrl.pathname)
}
res.setHeader('Content-Type', 'text/plain')
res.statusCode = 200
res.write('.'.repeat(2048))
while (true) {
if (!res.write('.')) {
break
} else if (abortKey && stash.take(abortKey, fullUrl.pathname)) {
break
}
await sleep(10)
}
if (stateKey) {
stash.put(stateKey, 'closed', fullUrl.pathname)
}
return res.end()
}
case '/fetch/api/resources/stash-take.py': {
// https://github.com/web-platform-tests/wpt/blob/6ae3f702a332e8399fab778c831db6b7dca3f1c6/fetch/api/resources/stash-take.py
const key = fullUrl.searchParams.get('key')
res.setHeader('Access-Control-Allow-Origin', '*')
const took = stash.take(key, fullUrl.pathname) ?? null
res.write(JSON.stringify(took))
return res.end()
}
default: {
res.statusCode = 200
res.end('body')
}
}
}).listen(0)
await once(server, 'listening')
const send = (message) => {
if (typeof process.send === 'function') {
process.send(message)
}
}
send({ server: `http://localhost:${server.address().port}` })
process.on('message', (message) => {
if (message === 'shutdown') {
server.close((err) => err ? send(err) : send({ message: 'shutdown' }))
}
})