next
Version:
The React Framework
345 lines (344 loc) • 16.5 kB
JavaScript
import { PageSignatureError } from './error';
import { fromNodeOutgoingHttpHeaders, normalizeNextQueryParam } from './utils';
import { NextFetchEvent, getWaitUntilPromiseFromEvent } from './spec-extension/fetch-event';
import { NextRequest } from './spec-extension/request';
import { NextResponse } from './spec-extension/response';
import { parseRelativeURL, getRelativeURL } from '../../shared/lib/router/utils/relativize-url';
import { NextURL } from './next-url';
import { stripInternalSearchParams } from '../internal-utils';
import { normalizeRscURL } from '../../shared/lib/router/utils/app-paths';
import { FLIGHT_HEADERS, NEXT_REWRITTEN_PATH_HEADER, NEXT_REWRITTEN_QUERY_HEADER, RSC_HEADER } from '../../client/components/app-router-headers';
import { ensureInstrumentationRegistered } from './globals';
import { createRequestStoreForAPI } from '../async-storage/request-store';
import { workUnitAsyncStorage } from '../app-render/work-unit-async-storage.external';
import { createWorkStore } from '../async-storage/work-store';
import { workAsyncStorage } from '../app-render/work-async-storage.external';
import { NEXT_ROUTER_PREFETCH_HEADER } from '../../client/components/app-router-headers';
import { getTracer } from '../lib/trace/tracer';
import { MiddlewareSpan } from '../lib/trace/constants';
import { CloseController } from './web-on-close';
import { getEdgePreviewProps } from './get-edge-preview-props';
import { getBuiltinRequestContext } from '../after/builtin-request-context';
import { getImplicitTags } from '../lib/implicit-tags';
export class NextRequestHint extends NextRequest {
constructor(params){
super(params.input, params.init);
this.sourcePage = params.page;
}
get request() {
throw Object.defineProperty(new PageSignatureError({
page: this.sourcePage
}), "__NEXT_ERROR_CODE", {
value: "E394",
enumerable: false,
configurable: true
});
}
respondWith() {
throw Object.defineProperty(new PageSignatureError({
page: this.sourcePage
}), "__NEXT_ERROR_CODE", {
value: "E394",
enumerable: false,
configurable: true
});
}
waitUntil() {
throw Object.defineProperty(new PageSignatureError({
page: this.sourcePage
}), "__NEXT_ERROR_CODE", {
value: "E394",
enumerable: false,
configurable: true
});
}
}
const headersGetter = {
keys: (headers)=>Array.from(headers.keys()),
get: (headers, key)=>headers.get(key) ?? undefined
};
let propagator = (request, fn)=>{
const tracer = getTracer();
return tracer.withPropagatedContext(request.headers, fn, headersGetter);
};
let testApisIntercepted = false;
function ensureTestApisIntercepted() {
if (!testApisIntercepted) {
testApisIntercepted = true;
if (process.env.NEXT_PRIVATE_TEST_PROXY === 'true') {
const { interceptTestApis, wrapRequestHandler } = require('next/dist/experimental/testmode/server-edge');
interceptTestApis();
propagator = wrapRequestHandler(propagator);
}
}
}
export async function adapter(params) {
var _getBuiltinRequestContext;
ensureTestApisIntercepted();
await ensureInstrumentationRegistered();
// TODO-APP: use explicit marker for this
const isEdgeRendering = typeof globalThis.__BUILD_MANIFEST !== 'undefined';
params.request.url = normalizeRscURL(params.request.url);
const requestURL = new NextURL(params.request.url, {
headers: params.request.headers,
nextConfig: params.request.nextConfig
});
// Iterator uses an index to keep track of the current iteration. Because of deleting and appending below we can't just use the iterator.
// Instead we use the keys before iteration.
const keys = [
...requestURL.searchParams.keys()
];
for (const key of keys){
const value = requestURL.searchParams.getAll(key);
const normalizedKey = normalizeNextQueryParam(key);
if (normalizedKey) {
requestURL.searchParams.delete(normalizedKey);
for (const val of value){
requestURL.searchParams.append(normalizedKey, val);
}
requestURL.searchParams.delete(key);
}
}
// Ensure users only see page requests, never data requests.
const buildId = requestURL.buildId;
requestURL.buildId = '';
const requestHeaders = fromNodeOutgoingHttpHeaders(params.request.headers);
const isNextDataRequest = requestHeaders.has('x-nextjs-data');
const isRSCRequest = requestHeaders.get(RSC_HEADER) === '1';
if (isNextDataRequest && requestURL.pathname === '/index') {
requestURL.pathname = '/';
}
const flightHeaders = new Map();
// Headers should only be stripped for middleware
if (!isEdgeRendering) {
for (const header of FLIGHT_HEADERS){
const key = header.toLowerCase();
const value = requestHeaders.get(key);
if (value !== null) {
flightHeaders.set(key, value);
requestHeaders.delete(key);
}
}
}
const normalizeURL = process.env.__NEXT_NO_MIDDLEWARE_URL_NORMALIZE ? new URL(params.request.url) : requestURL;
const request = new NextRequestHint({
page: params.page,
// Strip internal query parameters off the request.
input: stripInternalSearchParams(normalizeURL).toString(),
init: {
body: params.request.body,
headers: requestHeaders,
method: params.request.method,
nextConfig: params.request.nextConfig,
signal: params.request.signal
}
});
/**
* This allows to identify the request as a data request. The user doesn't
* need to know about this property neither use it. We add it for testing
* purposes.
*/ if (isNextDataRequest) {
Object.defineProperty(request, '__isData', {
enumerable: false,
value: true
});
}
if (!globalThis.__incrementalCache && params.IncrementalCache) {
;
globalThis.__incrementalCache = new params.IncrementalCache({
appDir: true,
fetchCache: true,
minimalMode: process.env.NODE_ENV !== 'development',
fetchCacheKeyPrefix: process.env.__NEXT_FETCH_CACHE_KEY_PREFIX,
dev: process.env.NODE_ENV === 'development',
requestHeaders: params.request.headers,
requestProtocol: 'https',
getPrerenderManifest: ()=>{
return {
version: -1,
routes: {},
dynamicRoutes: {},
notFoundRoutes: [],
preview: getEdgePreviewProps()
};
}
});
}
// if we're in an edge runtime sandbox, we should use the waitUntil
// that we receive from the enclosing NextServer
const outerWaitUntil = params.request.waitUntil ?? ((_getBuiltinRequestContext = getBuiltinRequestContext()) == null ? void 0 : _getBuiltinRequestContext.waitUntil);
const event = new NextFetchEvent({
request,
page: params.page,
context: outerWaitUntil ? {
waitUntil: outerWaitUntil
} : undefined
});
let response;
let cookiesFromResponse;
response = await propagator(request, ()=>{
// we only care to make async storage available for middleware
const isMiddleware = params.page === '/middleware' || params.page === '/src/middleware';
if (isMiddleware) {
// if we're in an edge function, we only get a subset of `nextConfig` (no `experimental`),
// so we have to inject it via DefinePlugin.
// in `next start` this will be passed normally (see `NextNodeServer.runMiddleware`).
const waitUntil = event.waitUntil.bind(event);
const closeController = new CloseController();
return getTracer().trace(MiddlewareSpan.execute, {
spanName: `middleware ${request.method} ${request.nextUrl.pathname}`,
attributes: {
'http.target': request.nextUrl.pathname,
'http.method': request.method
}
}, async ()=>{
try {
var _params_request_nextConfig_experimental, _params_request_nextConfig, _params_request_nextConfig_experimental1, _params_request_nextConfig1;
const onUpdateCookies = (cookies)=>{
cookiesFromResponse = cookies;
};
const previewProps = getEdgePreviewProps();
const page = '/' // Fake Work
;
const fallbackRouteParams = null;
const implicitTags = await getImplicitTags(page, request.nextUrl, fallbackRouteParams);
const requestStore = createRequestStoreForAPI(request, request.nextUrl, implicitTags, onUpdateCookies, previewProps);
const workStore = createWorkStore({
page,
fallbackRouteParams,
renderOpts: {
cacheLifeProfiles: (_params_request_nextConfig = params.request.nextConfig) == null ? void 0 : (_params_request_nextConfig_experimental = _params_request_nextConfig.experimental) == null ? void 0 : _params_request_nextConfig_experimental.cacheLife,
experimental: {
isRoutePPREnabled: false,
dynamicIO: false,
authInterrupts: !!((_params_request_nextConfig1 = params.request.nextConfig) == null ? void 0 : (_params_request_nextConfig_experimental1 = _params_request_nextConfig1.experimental) == null ? void 0 : _params_request_nextConfig_experimental1.authInterrupts)
},
supportsDynamicResponse: true,
waitUntil,
onClose: closeController.onClose.bind(closeController),
onAfterTaskError: undefined
},
requestEndedState: {
ended: false
},
isPrefetchRequest: request.headers.has(NEXT_ROUTER_PREFETCH_HEADER),
buildId: buildId ?? '',
previouslyRevalidatedTags: []
});
return await workAsyncStorage.run(workStore, ()=>workUnitAsyncStorage.run(requestStore, params.handler, request, event));
} finally{
// middleware cannot stream, so we can consider the response closed
// as soon as the handler returns.
// we can delay running it until a bit later --
// if it's needed, we'll have a `waitUntil` lock anyway.
setTimeout(()=>{
closeController.dispatchClose();
}, 0);
}
});
}
return params.handler(request, event);
});
// check if response is a Response object
if (response && !(response instanceof Response)) {
throw Object.defineProperty(new TypeError('Expected an instance of Response to be returned'), "__NEXT_ERROR_CODE", {
value: "E567",
enumerable: false,
configurable: true
});
}
if (response && cookiesFromResponse) {
response.headers.set('set-cookie', cookiesFromResponse);
}
/**
* For rewrites we must always include the locale in the final pathname
* so we re-create the NextURL forcing it to include it when the it is
* an internal rewrite. Also we make sure the outgoing rewrite URL is
* a data URL if the request was a data request.
*/ const rewrite = response == null ? void 0 : response.headers.get('x-middleware-rewrite');
if (response && rewrite && (isRSCRequest || !isEdgeRendering)) {
const destination = new NextURL(rewrite, {
forceLocale: true,
headers: params.request.headers,
nextConfig: params.request.nextConfig
});
if (!process.env.__NEXT_NO_MIDDLEWARE_URL_NORMALIZE && !isEdgeRendering) {
if (destination.host === request.nextUrl.host) {
destination.buildId = buildId || destination.buildId;
response.headers.set('x-middleware-rewrite', String(destination));
}
}
/**
* When the request is a data request we must show if there was a rewrite
* with an internal header so the client knows which component to load
* from the data request.
*/ const { url: relativeDestination, isRelative } = parseRelativeURL(destination.toString(), requestURL.toString());
if (!isEdgeRendering && isNextDataRequest && // if the rewrite is external and external rewrite
// resolving config is enabled don't add this header
// so the upstream app can set it instead
!(process.env.__NEXT_EXTERNAL_MIDDLEWARE_REWRITE_RESOLVE && relativeDestination.match(/http(s)?:\/\//))) {
response.headers.set('x-nextjs-rewrite', relativeDestination);
}
// If this is an RSC request, and the pathname or search has changed, and
// this isn't an external rewrite, we need to set the rewritten pathname and
// query headers.
if (isRSCRequest && isRelative) {
if (requestURL.pathname !== destination.pathname) {
response.headers.set(NEXT_REWRITTEN_PATH_HEADER, destination.pathname);
}
if (requestURL.search !== destination.search) {
response.headers.set(NEXT_REWRITTEN_QUERY_HEADER, // remove the leading ? from the search string
destination.search.slice(1));
}
}
}
/**
* For redirects we will not include the locale in case when it is the
* default and we must also make sure the outgoing URL is a data one if
* the incoming request was a data request.
*/ const redirect = response == null ? void 0 : response.headers.get('Location');
if (response && redirect && !isEdgeRendering) {
const redirectURL = new NextURL(redirect, {
forceLocale: false,
headers: params.request.headers,
nextConfig: params.request.nextConfig
});
/**
* Responses created from redirects have immutable headers so we have
* to clone the response to be able to modify it.
*/ response = new Response(response.body, response);
if (!process.env.__NEXT_NO_MIDDLEWARE_URL_NORMALIZE) {
if (redirectURL.host === requestURL.host) {
redirectURL.buildId = buildId || redirectURL.buildId;
response.headers.set('Location', redirectURL.toString());
}
}
/**
* When the request is a data request we can't use the location header as
* it may end up with CORS error. Instead we map to an internal header so
* the client knows the destination.
*/ if (isNextDataRequest) {
response.headers.delete('Location');
response.headers.set('x-nextjs-redirect', getRelativeURL(redirectURL.toString(), requestURL.toString()));
}
}
const finalResponse = response ? response : NextResponse.next();
// Flight headers are not overridable / removable so they are applied at the end.
const middlewareOverrideHeaders = finalResponse.headers.get('x-middleware-override-headers');
const overwrittenHeaders = [];
if (middlewareOverrideHeaders) {
for (const [key, value] of flightHeaders){
finalResponse.headers.set(`x-middleware-request-${key}`, value);
overwrittenHeaders.push(key);
}
if (overwrittenHeaders.length > 0) {
finalResponse.headers.set('x-middleware-override-headers', middlewareOverrideHeaders + ',' + overwrittenHeaders.join(','));
}
}
return {
response: finalResponse,
waitUntil: getWaitUntilPromiseFromEvent(event) ?? Promise.resolve(),
fetchMetrics: request.fetchMetrics
};
}
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