7777130324
Follow-up to https://github.com/vercel/next.js/pull/41341 this fixes a related issue with the URL normalizing in middleware and updates the regression tests. x-ref: [slack thread](https://vercel.slack.com/archives/C01224Q5M99/p1665161421775079?thread_ts=1664536480.045539&cid=C01224Q5M99) ## Bug - [x] Related issues linked using `fixes #number` - [x] Integration tests added - [ ] Errors have a helpful link attached, see `contributing.md`
135 lines
3.6 KiB
JavaScript
135 lines
3.6 KiB
JavaScript
import { NextResponse } from 'next/server'
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const PUBLIC_FILE = /\.(.*)$/
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/**
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* @param {import('next/server').NextRequest} request
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*/
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export async function middleware(request) {
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const url = request.nextUrl
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// this is needed for tests to get the BUILD_ID
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if (url.pathname.startsWith('/_next/static/__BUILD_ID')) {
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return NextResponse.next()
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}
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if (url.pathname.includes('/to/some/404/path')) {
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return NextResponse.next({
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'x-matched-path': '/404',
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})
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}
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if (url.pathname.includes('/fallback-true-blog/rewritten')) {
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request.nextUrl.pathname = '/about'
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return NextResponse.rewrite(request.nextUrl)
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}
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if (url.pathname.startsWith('/about') && url.searchParams.has('override')) {
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const isExternal = url.searchParams.get('override') === 'external'
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return NextResponse.rewrite(
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isExternal
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? 'https://example.vercel.sh'
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: new URL('/ab-test/a', request.url)
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)
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}
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if (url.pathname === '/rewrite-to-beforefiles-rewrite') {
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url.pathname = '/beforefiles-rewrite'
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return NextResponse.rewrite(url)
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}
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if (url.pathname === '/rewrite-to-afterfiles-rewrite') {
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url.pathname = '/afterfiles-rewrite'
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return NextResponse.rewrite(url)
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}
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if (url.pathname.startsWith('/to-blog')) {
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const slug = url.pathname.split('/').pop()
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url.pathname = `/fallback-true-blog/${slug}`
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return NextResponse.rewrite(url)
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}
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if (url.pathname === '/rewrite-to-ab-test') {
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let bucket = request.cookies.get('bucket')
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if (!bucket) {
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bucket = Math.random() >= 0.5 ? 'a' : 'b'
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url.pathname = `/ab-test/${bucket}`
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const response = NextResponse.rewrite(url)
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response.cookies.set('bucket', bucket, { maxAge: 10 })
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return response
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}
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url.pathname = `/${bucket}`
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return NextResponse.rewrite(url)
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}
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if (url.pathname === '/rewrite-me-to-about') {
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url.pathname = '/about'
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return NextResponse.rewrite(url, {
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headers: { 'x-rewrite-target': String(url) },
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})
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}
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if (url.pathname === '/rewrite-me-with-a-colon') {
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url.pathname = '/with:colon'
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return NextResponse.rewrite(url)
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}
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if (url.pathname === '/colon:here') {
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url.pathname = '/no-colon-here'
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return NextResponse.rewrite(url)
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}
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if (url.pathname === '/rewrite-me-to-vercel') {
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return NextResponse.rewrite('https://example.vercel.sh')
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}
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if (url.pathname === '/clear-query-params') {
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const allowedKeys = ['allowed']
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for (const key of [...url.searchParams.keys()]) {
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if (!allowedKeys.includes(key)) {
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url.searchParams.delete(key)
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}
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}
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return NextResponse.rewrite(url)
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}
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if (
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url.pathname === '/rewrite-me-without-hard-navigation' ||
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url.searchParams.get('path') === 'rewrite-me-without-hard-navigation'
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) {
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url.searchParams.set('middleware', 'foo')
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url.pathname = request.cookies.has('about-bypass')
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? '/about-bypass'
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: '/about'
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return NextResponse.rewrite(url, {
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headers: { 'x-middleware-cache': 'no-cache' },
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})
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}
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if (url.pathname.endsWith('/dynamic-replace')) {
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url.pathname = '/dynamic-fallback/catch-all'
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return NextResponse.rewrite(url)
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}
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if (url.pathname.startsWith('/country')) {
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const locale = url.searchParams.get('my-locale')
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if (locale) {
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url.locale = locale
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}
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const country = url.searchParams.get('country') || 'us'
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if (!PUBLIC_FILE.test(url.pathname) && !url.pathname.includes('/api/')) {
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url.pathname = `/country/${country}`
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return NextResponse.rewrite(url)
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}
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}
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if (url.pathname.startsWith('/i18n')) {
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url.searchParams.set('locale', url.locale)
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return NextResponse.rewrite(url)
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}
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return NextResponse.rewrite(request.nextUrl)
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}
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