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<?php |
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namespace App\Http\Middleware; |
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use Closure; |
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use Illuminate\Http\Request; |
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use Illuminate\Support\Facades\Auth; |
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use Symfony\Component\HttpFoundation\Response; |
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/** |
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* Middleware to prevent caching of authenticated user pages. |
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* |
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* This prevents issues where: |
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* - CDNs (like Cloudflare) cache user-specific pages |
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* - Reverse proxies cache authenticated pages showing wrong user data |
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* - Browsers cache authenticated pages |
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* - One user could see another user's data due to cache poisoning |
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*/ |
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class NoCacheForAuthenticatedUsers |
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{ |
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/** |
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* Handle an incoming request. |
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*/ |
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public function handle(Request $request, Closure $next): Response |
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{ |
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$response = $next($request); |
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// For authenticated users, add headers to prevent caching of personal data |
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if (Auth::check()) { |
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// Prevent any caching of authenticated user responses |
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// 'private' tells CDNs like Cloudflare not to cache this response |
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$response->headers->set('Cache-Control', 'no-cache, no-store, must-revalidate, private, max-age=0, s-maxage=0'); |
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$response->headers->set('Pragma', 'no-cache'); |
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$response->headers->set('Expires', 'Thu, 01 Jan 1970 00:00:00 GMT'); |
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// Cloudflare-specific: Tell Cloudflare to bypass cache for this response |
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// CDN-Cache-Control is respected by Cloudflare and other CDNs |
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$response->headers->set('CDN-Cache-Control', 'no-store'); |
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// Cloudflare also respects this header |
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$response->headers->set('Cloudflare-CDN-Cache-Control', 'no-store'); |
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// Add Vary header to ensure caches differentiate by user session |
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$existingVary = $response->headers->get('Vary', ''); |
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$varyHeaders = array_filter(array_map('trim', explode(',', $existingVary))); |
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// Add Cookie to Vary header if not already present |
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if (! in_array('Cookie', $varyHeaders, true)) { |
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$varyHeaders[] = 'Cookie'; |
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} |
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// Add Authorization to Vary header for API requests |
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if ($request->bearerToken() && ! in_array('Authorization', $varyHeaders, true)) { |
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$varyHeaders[] = 'Authorization'; |
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} |
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$response->headers->set('Vary', implode(', ', $varyHeaders)); |
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} |
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return $response; |
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} |
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} |
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NNTmux /
newznab-tmux
