Function enforcePublicFileRateLimit

apps/sim/lib/public-shares/rate-limit.ts:28–45

(
  request: { headers: { get(name: string): string | null } },
  scope: 'metadata' | 'content'
)

 * matching the chat public route.
 */
export async function enforcePublicFileRateLimit(
  request: { headers: { get(name: string): string | null } },
  scope: 'metadata' | 'content'
): Promise<NextResponse | null> {
  const ip = getClientIp(request)
  const config = scope === 'content' ? CONTENT_RATE_LIMIT : METADATA_RATE_LIMIT
  const result = await rateLimiter.checkRateLimitDirect(`public-file:${scope}:${ip}`, config)
  if (result.allowed) return null

  const headers =
    result.retryAfterMs != null
      ? { 'Retry-After': String(Math.ceil(result.retryAfterMs / 1000)) }
      : undefined
  return NextResponse.json(
    { error: 'Too many requests. Please try again later.' },
    { status: 429, headers }
  )
}