save

cacme/vendor/workerman/validation/library/Rules/Cnh.php

@@ -0,0 +1,59 @@
+<?php
+
+/*
+ * Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
+ * SPDX-License-Identifier: MIT
+ */
+
+declare(strict_types=1);
+
+namespace Respect\Validation\Rules;
+
+use function is_scalar;
+use function mb_strlen;
+use function preg_replace;
+
+/**
+ * Validates a Brazilian driver's license.
+ *
+ * @author Gabriel Pedro <gpedro@users.noreply.github.com>
+ * @author Henrique Moody <henriquemoody@gmail.com>
+ * @author Kinn Coelho Julião <kinncj@gmail.com>
+ * @author William Espindola <oi@williamespindola.com.br>
+ */
+final class Cnh extends AbstractRule
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function validate($input): bool
+    {
+        if (!is_scalar($input)) {
+            return false;
+        }
+
+        // Canonicalize input
+        $input = (string) preg_replace('{\D}', '', (string) $input);
+
+        // Validate length and invalid numbers
+        if (mb_strlen($input) != 11 || ((int) $input === 0)) {
+            return false;
+        }
+
+        // Validate check digits using a modulus 11 algorithm
+        for ($c = $s1 = $s2 = 0, $p = 9; $c < 9; $c++, $p--) {
+            $s1 += (int) $input[$c] * $p;
+            $s2 += (int) $input[$c] * (10 - $p);
+        }
+
+        $dv1 = $s1 % 11;
+        if ($input[9] != ($dv1 > 9) ? 0 : $dv1) {
+            return false;
+        }
+
+        $dv2 = $s2 % 11 - ($dv1 > 9 ? 2 : 0);
+        $check = $dv2 < 0 ? $dv2 + 11 : ($dv2 > 9 ? 0 : $dv2);
+
+        return $input[10] == $check;
+    }
+}