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<?php |
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namespace Spatie\Honeypot; |
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use Closure; |
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use Exception; |
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use Illuminate\Http\Request; |
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use Illuminate\Support\Str; |
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use Spatie\Honeypot\SpamResponder\SpamResponder; |
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use Symfony\Component\HttpFoundation\Response; |
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class ProtectAgainstSpam { |
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/** @var \Spatie\Honeypot\SpamResponder\SpamResponder */ |
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protected $spamResponder; |
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public function __construct(SpamResponder $spamResponder) { |
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$this->spamResponder = $spamResponder; |
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} |
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public function handle(Request $request, Closure $next): Response { |
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if (!config('honeypot.enabled')) { |
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return $next($request); |
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} |
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if (!$request->isMethod('POST')) { |
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return $next($request); |
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} |
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$nameFieldName = config('honeypot.name_field_name'); |
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if (config('honeypot.randomize_name_field_name')) { |
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$nameFieldName = $this->getRandomizedNameFieldName($nameFieldName, $request->all()); |
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} |
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if (!$this->shouldCheckHoneypot($request, $nameFieldName)) { |
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return $next($request); |
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} |
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if (!$request->has($nameFieldName)) { |
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return $this->respondToSpam($request, $next); |
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} |
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$honeypotValue = $request->get($nameFieldName); |
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if (!empty($honeypotValue)) { |
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return $this->respondToSpam($request, $next); |
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} |
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$validFrom = $request->get(config('honeypot.valid_from_field_name')); |
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if (!$validFrom) { |
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return $this->respondToSpam($request, $next); |
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} |
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if (config('honeypot.valid_from_timestamp')) { |
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try { |
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$time = new EncryptedTime($validFrom); |
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} catch (Exception $decryptException) { |
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$time = null; |
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} |
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if (!$time || $time->isFuture()) { |
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return $this->respondToSpam($request, $next); |
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} |
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} |
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return $next($request); |
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} |
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private function getRandomizedNameFieldName($nameFieldName, $requestFields): ?string { |
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return collect($requestFields)->filter(function ($value, $key) use ($nameFieldName) { |
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return Str::startsWith($key, $nameFieldName); |
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})->keys()->first(); |
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} |
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protected function respondToSpam(Request $request, Closure $next): Response { |
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event(new SpamDetected($request)); |
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return $this->spamResponder->respond($request, $next); |
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} |
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private function shouldCheckHoneypot(Request $request, ?string $nameFieldName): bool { |
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if (config('honeypot.honeypot_fields_required_for_all_forms') == true) { |
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return true; |
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} |
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return $request->has($nameFieldName) || $request->has(config('honeypot.valid_from_field_name')); |
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} |
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} |
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spatie /
laravel-honeypot
