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// @ts-check
import { NextResponse } from 'next/server'
/**
* @param {import('next/server').NextRequest} request
* @returns {Promise<NextResponse | undefined>}
*/
export async function middleware(request) {
if (request.nextUrl.pathname === '/searchparams-normalization-bug') {
const headers = new Headers(request.headers)
headers.set('test', request.nextUrl.searchParams.get('val') || '')
const response = NextResponse.next({
request: {
headers,
},
})
return response
}
if (request.nextUrl.pathname === '/exists-but-not-routed') {
return NextResponse.rewrite(new URL('/dashboard', request.url))
}
if (request.nextUrl.pathname === '/middleware-to-dashboard') {
return NextResponse.rewrite(new URL('/dashboard', request.url))
}
if (request.nextUrl.pathname === '/bootstrap/with-nonce') {
// In a real app, crypto.randomUUID() would be used to generate a safe nonce.
// React and Webpack use eval() in development mode, so we need to allow it.
const csp = `script-src 'nonce-my-random-nonce' 'strict-dynamic'${process.env.NODE_ENV !== 'production' ? " 'unsafe-eval'" : ''};`
return NextResponse.next({
headers: {
'Content-Security-Policy': csp,
},
})
}
if (request.nextUrl.pathname.startsWith('/internal/test')) {
const method = request.nextUrl.pathname.endsWith('rewrite')
? 'rewrite'
: 'redirect'
const internal = ['RSC', 'Next-Router-State-Tree']
if (internal.some((name) => request.headers.has(name.toLowerCase()))) {
return NextResponse[method](new URL('/internal/failure', request.url))
}
return NextResponse[method](new URL('/internal/success', request.url))
}
if (request.nextUrl.pathname === '/search-params-prop-middleware-rewrite') {
return NextResponse.rewrite(
new URL(
'/search-params-prop?first=value&second=other%20value&third',
request.url
)
)
}
if (
request.nextUrl.pathname === '/search-params-prop-server-middleware-rewrite'
) {
return NextResponse.rewrite(
new URL(
'/search-params-prop/server?first=value&second=other%20value&third',
request.url
)
)
}
if (request.nextUrl.pathname === '/script-nonce') {
const nonce = crypto.randomUUID()
return NextResponse.next({
headers: {
'content-security-policy': `script-src 'nonce-${nonce}' 'strict-dynamic';`,
},
})
}
if (request.nextUrl.pathname === '/script-nonce/with-next-font') {
const nonce = crypto.randomUUID()
return NextResponse.next({
headers: {
'content-security-policy': `script-src 'nonce-${nonce}' 'strict-dynamic';`,
},
})
}
}
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