init commit

api/app/Rules/Cns.php

@@ -0,0 +1,87 @@
+<?php
+
+namespace App\Rules;
+
+use Illuminate\Contracts\Validation\Rule;
+
+class Cns implements Rule
+{
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param  string  $attribute
+     * @param  mixed  $value
+     * @return bool
+     */
+    public function passes($attribute, $value)
+    {
+        return self::isValid($value);
+    }
+
+    public static function isValid($value)
+    {
+        $cns = preg_replace('/[^0-9]/', '', $value);
+
+        if ((strlen(trim($cns))) != 15)
+            return false;
+
+        $acao = substr($cns, 0, 1);
+        switch ($acao)
+        {
+            case '1':
+            case '2': $ret = self::validaCNS($cns); break;
+            case '5':
+            case '7':
+            case '8':
+            case '9': $ret = self::validaCNS_PROVISORIO($cns); break;
+            default: $ret = false;
+        }
+
+        return $ret;
+    }
+
+    private static function validaCNS($cns)
+    {
+        $pis = substr($cns,0,11);
+        $soma = 0;
+        for ( $i = 0, $j = strlen($pis), $k = 15; $i < $j; $i++, $k-- )
+        {
+            $soma += $pis[$i] * $k;
+        }
+        $dv = 11 - fmod($soma, 11);
+        $dv = ($dv != 11) ? $dv : '0';
+        if ( $dv == 10 )
+        {
+            $soma += 2;
+            $dv = 11 - fmod($soma, 11);
+            $resultado = $pis.'001'.$dv;
+        }
+        else
+        {
+            $resultado = $pis.'000'.$dv;
+        }
+
+        return $cns == $resultado;
+    }
+
+    private static function validaCNS_PROVISORIO($cns)
+    {
+        $soma = 0;
+        for ( $i = 0, $j = strlen($cns), $k = $j; $i < $j; $i++, $k-- )
+        {
+            $soma += $cns[$i] * $k;
+        }
+
+        return $soma % 11 == 0 && $j == 15;
+    }
+
+    /**
+     * Get the validation error message.
+     *
+     * @return string
+     */
+    public function message()
+    {
+        return 'CNS Inválido.';
+    }
+}