add controllers, servoices

app/Services/Auth/RegistrationCaptchaService.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Services\Auth;
+
+class RegistrationCaptchaService
+{
+    public function generate(?int $length = null): string
+    {
+        $length = $length ?? random_int(4, 8);
+        $characters = 'ABCDEFGHJKLMNOPQRSTUVWXYZabcdefghjkmnopqrstuvwxyz0123456789';
+        $captchaText = '';
+
+        for ($i = 0; $i < $length; $i++) {
+            $captchaText .= $characters[random_int(0, strlen($characters) - 1)];
+        }
+
+        session()->put('captcha_answer', $captchaText);
+
+        return $captchaText;
+    }
+
+    public function verify(string $input): bool
+    {
+        $expected = (string) session()->get('captcha_answer', '');
+        if ($expected === '') {
+            return false;
+        }
+
+        return hash_equals($expected, $input);
+    }
+
+    public function clear(): void
+    {
+        session()->forget('captcha_answer');
+    }
+}