First complete upload CasaDoc

app/Rules/ValidPermissionName.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace Vanguard\Rules;
+
+use Illuminate\Contracts\Validation\Rule;
+
+class ValidPermissionName implements Rule
+{
+    protected $regex = '/^[a-zA-Z0-9\-_\.]+$/';
+
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param  string  $attribute
+     * @param  mixed  $value
+     * @return bool
+     */
+    public function passes($attribute, $value)
+    {
+        if (! is_string($value) && ! is_numeric($value)) {
+            return false;
+        }
+
+        return preg_match($this->regex, $value) > 0;
+    }
+
+    /**
+     * Get the validation error message.
+     *
+     * @return string
+     */
+    public function message()
+    {
+        return __('validation.regex', ['attribute' => __('permission name')]);
+    }
+
+    /**
+     * @return string
+     */
+    public function __toString()
+    {
+        return sprintf("regex:%s", $this->regex);
+    }
+}