309 lines
8.0 KiB
JavaScript
309 lines
8.0 KiB
JavaScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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/* eslint-disable */
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/* tslint:disable */
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/**
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* Mock Service Worker (1.1.0).
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* @see https://github.com/mswjs/msw
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* - Please do NOT modify this file.
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* - Please do NOT serve this file on production.
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*/
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const INTEGRITY_CHECKSUM = '3d6b9f06410d179a7f7404d4bf4c3c70'
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const activeClientIds = new Set()
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self.addEventListener('install', function () {
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self.skipWaiting()
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})
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self.addEventListener('activate', function (event) {
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event.waitUntil(self.clients.claim())
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})
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self.addEventListener('message', async function (event) {
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const clientId = event.source.id
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if (!clientId || !self.clients) {
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return
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}
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const client = await self.clients.get(clientId)
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if (!client) {
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return
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}
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const allClients = await self.clients.matchAll({
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type: 'window',
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})
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switch (event.data) {
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case 'KEEPALIVE_REQUEST': {
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sendToClient(client, {
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type: 'KEEPALIVE_RESPONSE',
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})
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break
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}
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case 'INTEGRITY_CHECK_REQUEST': {
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sendToClient(client, {
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type: 'INTEGRITY_CHECK_RESPONSE',
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payload: INTEGRITY_CHECKSUM,
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})
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break
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}
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case 'MOCK_ACTIVATE': {
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activeClientIds.add(clientId)
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sendToClient(client, {
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type: 'MOCKING_ENABLED',
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payload: true,
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})
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break
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}
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case 'MOCK_DEACTIVATE': {
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activeClientIds.delete(clientId)
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break
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}
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case 'CLIENT_CLOSED': {
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activeClientIds.delete(clientId)
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const remainingClients = allClients.filter((client) => {
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return client.id !== clientId
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})
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// Unregister itself when there are no more clients
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if (remainingClients.length === 0) {
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self.registration.unregister()
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}
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break
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}
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}
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})
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self.addEventListener('fetch', function (event) {
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const { request } = event
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const accept = request.headers.get('accept') || ''
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// Bypass server-sent events.
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if (accept.includes('text/event-stream')) {
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return
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}
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// Bypass navigation requests.
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if (request.mode === 'navigate') {
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return
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}
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// Opening the DevTools triggers the "only-if-cached" request
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// that cannot be handled by the worker. Bypass such requests.
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if (request.cache === 'only-if-cached' && request.mode !== 'same-origin') {
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return
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}
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// Bypass all requests when there are no active clients.
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// Prevents the self-unregistered worked from handling requests
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// after it's been deleted (still remains active until the next reload).
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if (activeClientIds.size === 0) {
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return
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}
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// Generate unique request ID.
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const requestId = Math.random().toString(16).slice(2)
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event.respondWith(
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handleRequest(event, requestId).catch((error) => {
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if (error.name === 'NetworkError') {
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console.warn(
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'[MSW] Successfully emulated a network error for the "%s %s" request.',
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request.method,
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request.url,
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)
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return
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}
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// At this point, any exception indicates an issue with the original request/response.
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console.error(
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`\
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[MSW] Caught an exception from the "%s %s" request (%s). This is probably not a problem with Mock Service Worker. There is likely an additional logging output above.`,
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request.method,
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request.url,
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`${error.name}: ${error.message}`,
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)
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}),
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)
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})
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async function handleRequest(event, requestId) {
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const client = await resolveMainClient(event)
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const response = await getResponse(event, client, requestId)
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// Send back the response clone for the "response:*" life-cycle events.
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// Ensure MSW is active and ready to handle the message, otherwise
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// this message will pend indefinitely.
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if (client && activeClientIds.has(client.id)) {
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;(async function () {
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const clonedResponse = response.clone()
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sendToClient(client, {
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type: 'RESPONSE',
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payload: {
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requestId,
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type: clonedResponse.type,
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ok: clonedResponse.ok,
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status: clonedResponse.status,
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statusText: clonedResponse.statusText,
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body:
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clonedResponse.body === null ? null : await clonedResponse.text(),
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headers: Object.fromEntries(clonedResponse.headers.entries()),
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redirected: clonedResponse.redirected,
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},
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})
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})()
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}
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return response
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}
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// Resolve the main client for the given event.
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// Client that issues a request doesn't necessarily equal the client
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// that registered the worker. It's with the latter the worker should
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// communicate with during the response resolving phase.
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async function resolveMainClient(event) {
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const client = await self.clients.get(event.clientId)
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if (client?.frameType === 'top-level') {
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return client
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}
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const allClients = await self.clients.matchAll({
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type: 'window',
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})
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return allClients
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.filter((client) => {
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// Get only those clients that are currently visible.
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return client.visibilityState === 'visible'
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})
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.find((client) => {
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// Find the client ID that's recorded in the
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// set of clients that have registered the worker.
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return activeClientIds.has(client.id)
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})
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}
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async function getResponse(event, client, requestId) {
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const { request } = event
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const clonedRequest = request.clone()
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function passthrough() {
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// Clone the request because it might've been already used
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// (i.e. its body has been read and sent to the client).
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const headers = Object.fromEntries(clonedRequest.headers.entries())
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// Remove MSW-specific request headers so the bypassed requests
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// comply with the server's CORS preflight check.
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// Operate with the headers as an object because request "Headers"
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// are immutable.
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delete headers['x-msw-bypass']
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return fetch(clonedRequest, { headers })
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}
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// Bypass mocking when the client is not active.
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if (!client) {
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return passthrough()
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}
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// Bypass initial page load requests (i.e. static assets).
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// The absence of the immediate/parent client in the map of the active clients
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// means that MSW hasn't dispatched the "MOCK_ACTIVATE" event yet
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// and is not ready to handle requests.
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if (!activeClientIds.has(client.id)) {
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return passthrough()
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}
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// Bypass requests with the explicit bypass header.
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// Such requests can be issued by "ctx.fetch()".
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if (request.headers.get('x-msw-bypass') === 'true') {
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return passthrough()
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}
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// Notify the client that a request has been intercepted.
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const clientMessage = await sendToClient(client, {
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type: 'REQUEST',
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payload: {
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id: requestId,
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url: request.url,
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method: request.method,
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headers: Object.fromEntries(request.headers.entries()),
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cache: request.cache,
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mode: request.mode,
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credentials: request.credentials,
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destination: request.destination,
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integrity: request.integrity,
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redirect: request.redirect,
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referrer: request.referrer,
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referrerPolicy: request.referrerPolicy,
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body: await request.text(),
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bodyUsed: request.bodyUsed,
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keepalive: request.keepalive,
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},
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})
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switch (clientMessage.type) {
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case 'MOCK_RESPONSE': {
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return respondWithMock(clientMessage.data)
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}
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case 'MOCK_NOT_FOUND': {
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return passthrough()
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}
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case 'NETWORK_ERROR': {
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const { name, message } = clientMessage.data
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const networkError = new Error(message)
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networkError.name = name
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// Rejecting a "respondWith" promise emulates a network error.
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throw networkError
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}
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}
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return passthrough()
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}
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function sendToClient(client, message) {
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return new Promise((resolve, reject) => {
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const channel = new MessageChannel()
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channel.port1.onmessage = (event) => {
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if (event.data && event.data.error) {
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return reject(event.data.error)
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}
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resolve(event.data)
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}
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client.postMessage(message, [channel.port2])
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})
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}
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function sleep(timeMs) {
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return new Promise((resolve) => {
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setTimeout(resolve, timeMs)
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})
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}
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async function respondWithMock(response) {
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await sleep(response.delay)
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return new Response(response.body, response)
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}
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