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Co-authored-by: Joel <iamjoel007@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| import type { NextRequest } from 'next/server' | ||
| import { NextResponse } from 'next/server' | ||
|
|
||
| const NECESSARY_DOMAIN = '*.sentry.io http://localhost:* http://127.0.0.1:* https://analytics.google.com https://googletagmanager.com https://api.github.com' | ||
|
|
||
| export function middleware(request: NextRequest) { | ||
| const isWhiteListEnabled = !!process.env.NEXT_PUBLIC_CSP_WHITELIST && process.env.NODE_ENV === 'production' | ||
| if (!isWhiteListEnabled) | ||
| return NextResponse.next() | ||
|
|
||
| const whiteList = `${process.env.NEXT_PUBLIC_CSP_WHITELIST} ${NECESSARY_DOMAIN}` | ||
| const nonce = Buffer.from(crypto.randomUUID()).toString('base64') | ||
| const csp = `'nonce-${nonce}'` | ||
|
|
||
| const scheme_source = 'data: mediastream: blob: filesystem:' | ||
|
|
||
| const cspHeader = ` | ||
| default-src 'self' ${scheme_source} ${csp} ${whiteList}; | ||
| connect-src 'self' ${scheme_source} ${csp} ${whiteList}; | ||
| script-src 'self' ${scheme_source} ${csp} ${whiteList}; | ||
| style-src 'self' 'unsafe-inline' ${scheme_source} ${whiteList}; | ||
| worker-src 'self' ${scheme_source} ${csp} ${whiteList}; | ||
| media-src 'self' ${scheme_source} ${csp} ${whiteList}; | ||
| img-src 'self' ${scheme_source} ${csp} ${whiteList}; | ||
| font-src 'self'; | ||
| object-src 'none'; | ||
| base-uri 'self'; | ||
| form-action 'self'; | ||
| upgrade-insecure-requests; | ||
| ` | ||
| // Replace newline characters and spaces | ||
| const contentSecurityPolicyHeaderValue = cspHeader | ||
| .replace(/\s{2,}/g, ' ') | ||
| .trim() | ||
|
|
||
| const requestHeaders = new Headers(request.headers) | ||
| requestHeaders.set('x-nonce', nonce) | ||
|
|
||
| requestHeaders.set( | ||
| 'Content-Security-Policy', | ||
| contentSecurityPolicyHeaderValue, | ||
| ) | ||
|
|
||
| const response = NextResponse.next({ | ||
| request: { | ||
| headers: requestHeaders, | ||
| }, | ||
| }) | ||
| response.headers.set( | ||
| 'Content-Security-Policy', | ||
| contentSecurityPolicyHeaderValue, | ||
| ) | ||
|
|
||
| return response | ||
| } | ||
|
|
||
| export const config = { | ||
| matcher: [ | ||
| /* | ||
| * Match all request paths except for the ones starting with: | ||
| * - api (API routes) | ||
| * - _next/static (static files) | ||
| * - _next/image (image optimization files) | ||
| * - favicon.ico (favicon file) | ||
| */ | ||
| { | ||
| // source: '/((?!api|_next/static|_next/image|favicon.ico).*)', | ||
| source: '/((?!_next/static|_next/image|favicon.ico).*)', | ||
| // source: '/(.*)', | ||
| // missing: [ | ||
| // { type: 'header', key: 'next-router-prefetch' }, | ||
| // { type: 'header', key: 'purpose', value: 'prefetch' }, | ||
| // ], | ||
| }, | ||
| ], | ||
| } |
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