Function getTrustedForwardedPathPrefix

src/utils/http.ts:98–108

(request: IncomingMessage, settings: Settings)

}

const getTrustedForwardedPathPrefix = (request: IncomingMessage, settings: Settings): string => {
  const socketAddress = request.socket?.remoteAddress
  if (typeof socketAddress !== 'string' || !isTrustedProxy(socketAddress, settings)) {
    return ''
  }

  const rawHeader = request.headers?.['x-forwarded-prefix']
  const rawPrefix = Array.isArray(rawHeader) ? rawHeader[0] : rawHeader

  return normalizePathPrefix(rawPrefix)
}

export const getPublicPathPrefix = (request: IncomingMessage, settings: Settings): string => {
  return getTrustedForwardedPathPrefix(request, settings) || getRelayUrlPathPrefix(settings.info?.relay_url)