All files / src middleware.ts

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  import { NextRequest, NextResponse } from 'next/server'
 
import { getLogger } from './logging/log-util'
 
//regex to check if there's an extension in the path, ie .jpg
const PUBLIC_FILE = /\.(.*)$/
const logger = getLogger('middleware')
 
export async function middleware(req: NextRequest) {
  const { cookies, nextUrl, url } = req
  const { locale, pathname } = nextUrl
 
  if (
    pathname.startsWith('/_next') ||
    pathname.includes('/api/') ||
    PUBLIC_FILE.test(pathname)
  ) {
    return NextResponse.next()
  }
 
  logger.debug(req)
 
  if (locale === 'default' && !pathname.endsWith('/')) {
    return NextResponse.redirect(new URL(`/en${pathname}`, url))
  }
 
  //Redirect for index page as it's meant to be bilingual so we don't want users navigating to /en or /fr
  if ((locale === 'en' || locale === 'fr') && pathname === '/') {
    return NextResponse.redirect(new URL(`/`, url))
  }
 
  if (
    !['/', '/expectations'].includes(pathname) &&
    cookies.get('agreed-to-email-esrf-terms')?.value !== 'true'
  ) {
    return NextResponse.redirect(new URL(`/${locale}/expectations`, url))
  }
 
  return NextResponse.next()
}