DisabledMimetypes.php validation rule fix

app/Rules/DisabledMimetypes.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Rules;
+use Illuminate\Contracts\Validation\Rule;
+
+class DisabledMimetypes implements Rule
+{
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param  string  $attribute
+     * @param  mixed  $value
+     * @return bool
+     */
+    public function passes($attribute, $value)
+    {
+        $mimetype_blacklist = explode(',', get_setting('mimetypes_blacklist'));
+        $file_mimetype = explode('/' ,$value->getMimeType());
+        
+        return ! array_intersect($file_mimetype, $mimetype_blacklist);
+    }
+
+    /**
+     * Get the validation error message.
+     *
+     * @return string
+     */
+    public function message()
+    {
+       return 'Type of this mime type is not allowed.';
+    }
+}