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Chore: Remove MSW worker from source control and rely on installation instead (#93268)

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Tom Ratcliffe 2024-09-12 14:03:50 +01:00 committed by GitHub
parent 3f8d127410
commit 03c48844dd
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3 changed files with 3 additions and 285 deletions
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1
.github/CODEOWNERS vendored
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@ -507,7 +507,6 @@ playwright.config.ts @grafana/plugins-platform-frontend
/public/lib/ @grafana/grafana-frontend-platform
/public/lib/monaco-languages/kusto.ts @grafana/partner-datasources
/public/maps/ @ryantxu
/public/mockServiceWorker.js @grafana/frontend-ops
/public/robots.txt @grafana/frontend-ops
/public/fonts/ @grafana/grafana-frontend-platform
/public/sass/ @grafana/grafana-frontend-platform

3
.gitignore vendored
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@ -220,3 +220,6 @@ public/app/plugins/**/dist/
# Locally enabling the Go race detector until we can globally do so
.go-race-enabled-locally
# Mock service worker used for fake API responses in frontend development
public/mockServiceWorker.js

284
public/mockServiceWorker.js
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@ -1,284 +0,0 @@
/* eslint-disable */
/* tslint:disable */
/**
* Mock Service Worker.
* @see https://github.com/mswjs/msw
* - Please do NOT modify this file.
* - Please do NOT serve this file on production.
*/
const PACKAGE_VERSION = '2.4.5'
const INTEGRITY_CHECKSUM = '26357c79639bfa20d64c0efca2a87423'
const IS_MOCKED_RESPONSE = Symbol('isMockedResponse')
const activeClientIds = new Set()
self.addEventListener('install', function () {
self.skipWaiting()
})
self.addEventListener('activate', function (event) {
event.waitUntil(self.clients.claim())
})
self.addEventListener('message', async function (event) {
const clientId = event.source.id
if (!clientId || !self.clients) {
return
}
const client = await self.clients.get(clientId)
if (!client) {
return
}
const allClients = await self.clients.matchAll({
type: 'window',
})
switch (event.data) {
case 'KEEPALIVE_REQUEST': {
sendToClient(client, {
type: 'KEEPALIVE_RESPONSE',
})
break
}
case 'INTEGRITY_CHECK_REQUEST': {
sendToClient(client, {
type: 'INTEGRITY_CHECK_RESPONSE',
payload: {
packageVersion: PACKAGE_VERSION,
checksum: INTEGRITY_CHECKSUM,
},
})
break
}
case 'MOCK_ACTIVATE': {
activeClientIds.add(clientId)
sendToClient(client, {
type: 'MOCKING_ENABLED',
payload: true,
})
break
}
case 'MOCK_DEACTIVATE': {
activeClientIds.delete(clientId)
break
}
case 'CLIENT_CLOSED': {
activeClientIds.delete(clientId)
const remainingClients = allClients.filter((client) => {
return client.id !== clientId
})
// Unregister itself when there are no more clients
if (remainingClients.length === 0) {
self.registration.unregister()
}
break
}
}
})
self.addEventListener('fetch', function (event) {
const { request } = event
// Bypass navigation requests.
if (request.mode === 'navigate') {
return
}
// Opening the DevTools triggers the "only-if-cached" request
// that cannot be handled by the worker. Bypass such requests.
if (request.cache === 'only-if-cached' && request.mode !== 'same-origin') {
return
}
// Bypass all requests when there are no active clients.
// Prevents the self-unregistered worked from handling requests
// after it's been deleted (still remains active until the next reload).
if (activeClientIds.size === 0) {
return
}
// Generate unique request ID.
const requestId = crypto.randomUUID()
event.respondWith(handleRequest(event, requestId))
})
async function handleRequest(event, requestId) {
const client = await resolveMainClient(event)
const response = await getResponse(event, client, requestId)
// Send back the response clone for the "response:*" life-cycle events.
// Ensure MSW is active and ready to handle the message, otherwise
// this message will pend indefinitely.
if (client && activeClientIds.has(client.id)) {
;(async function () {
const responseClone = response.clone()
sendToClient(
client,
{
type: 'RESPONSE',
payload: {
requestId,
isMockedResponse: IS_MOCKED_RESPONSE in response,
type: responseClone.type,
status: responseClone.status,
statusText: responseClone.statusText,
body: responseClone.body,
headers: Object.fromEntries(responseClone.headers.entries()),
},
},
[responseClone.body],
)
})()
}
return response
}
// Resolve the main client for the given event.
// Client that issues a request doesn't necessarily equal the client
// that registered the worker. It's with the latter the worker should
// communicate with during the response resolving phase.
async function resolveMainClient(event) {
const client = await self.clients.get(event.clientId)
if (client?.frameType === 'top-level') {
return client
}
const allClients = await self.clients.matchAll({
type: 'window',
})
return allClients
.filter((client) => {
// Get only those clients that are currently visible.
return client.visibilityState === 'visible'
})
.find((client) => {
// Find the client ID that's recorded in the
// set of clients that have registered the worker.
return activeClientIds.has(client.id)
})
}
async function getResponse(event, client, requestId) {
const { request } = event
// Clone the request because it might've been already used
// (i.e. its body has been read and sent to the client).
const requestClone = request.clone()
function passthrough() {
const headers = Object.fromEntries(requestClone.headers.entries())
// Remove internal MSW request header so the passthrough request
// complies with any potential CORS preflight checks on the server.
// Some servers forbid unknown request headers.
delete headers['x-msw-intention']
return fetch(requestClone, { headers })
}
// Bypass mocking when the client is not active.
if (!client) {
return passthrough()
}
// Bypass initial page load requests (i.e. static assets).
// The absence of the immediate/parent client in the map of the active clients
// means that MSW hasn't dispatched the "MOCK_ACTIVATE" event yet
// and is not ready to handle requests.
if (!activeClientIds.has(client.id)) {
return passthrough()
}
// Notify the client that a request has been intercepted.
const requestBuffer = await request.arrayBuffer()
const clientMessage = await sendToClient(
client,
{
type: 'REQUEST',
payload: {
id: requestId,
url: request.url,
mode: request.mode,
method: request.method,
headers: Object.fromEntries(request.headers.entries()),
cache: request.cache,
credentials: request.credentials,
destination: request.destination,
integrity: request.integrity,
redirect: request.redirect,
referrer: request.referrer,
referrerPolicy: request.referrerPolicy,
body: requestBuffer,
keepalive: request.keepalive,
},
},
[requestBuffer],
)
switch (clientMessage.type) {
case 'MOCK_RESPONSE': {
return respondWithMock(clientMessage.data)
}
case 'PASSTHROUGH': {
return passthrough()
}
}
return passthrough()
}
function sendToClient(client, message, transferrables = []) {
return new Promise((resolve, reject) => {
const channel = new MessageChannel()
channel.port1.onmessage = (event) => {
if (event.data && event.data.error) {
return reject(event.data.error)
}
resolve(event.data)
}
client.postMessage(
message,
[channel.port2].concat(transferrables.filter(Boolean)),
)
})
}
async function respondWithMock(response) {
// Setting response status code to 0 is a no-op.
// However, when responding with a "Response.error()", the produced Response
// instance will have status code set to 0. Since it's not possible to create
// a Response instance with status code 0, handle that use-case separately.
if (response.status === 0) {
return Response.error()
}
const mockedResponse = new Response(response.body, response)
Reflect.defineProperty(mockedResponse, IS_MOCKED_RESPONSE, {
value: true,
enumerable: true,
})
return mockedResponse
}