protonemedia/eddy-server-management

use Closure;
use Illuminate\Contracts\Validation\ValidationRule;
use Illuminate\Support\Str;

class FirewallPort implements ValidationRule
{
    public function validate(string $attribute, mixed $value, Closure $fail): void
    {
        if (is_numeric($value)) {
            if ($value < 1 || $value > 65535) {
                $fail(__('The :attribute field must be between :min and :max.', ['min' => 1, 'max' => 65535]));
            }

            return;
        }

        if (Str::substrCount($value, ':') !== 1) {
            $fail(__('The :attribute field is invalid.'));

            return;
        }

        [$fromPort, $toPort] = explode(':', $value);

        if ($toPort < $fromPort) {
            $fail(__('The range is invalid.'));
        }

        if ($toPort < 1 || $toPort > 65535) {
            $fail(__('The :attribute field must be between :min and :max.', ['min' => 1, 'max' => 65535]));
        }

        if ($fromPort < 1 || $fromPort > 65535) {
            $fail(__('The :attribute field must be between :min and :max.', ['min' => 1, 'max' => 65535]));
        }
    }
}

use App\Enum;
use App\Models\Server;
use App\Rules\FirewallPort;
use App\Server\Firewall\RuleAction;
use Illuminate\Http\Request;

class FirewallRuleController extends Controller
{
    // ...

    public function store(Server $server, Request $request)
    {
        $data = $request->validate([
            'name' => ['required', 'string', 'max:255'],
            'action' => ['required', 'string', Enum::rule(RuleAction::class)],
            'port' => ['required',  new FirewallPort],
            'from_ipv4' => ['nullable', 'string', 'ipv4'],
        ]);

        // ...
    }

    // ...
}