SNMP Capabilities (#13289)

* SNMP Capabilities
Allow all available auth algorithms to be set in global settings
cleanup other usages

* fix style

app/Http/Controllers/Ajax/SnmpCapabilities.php

@@ -0,0 +1,39 @@
+<?php
+/*
+ * SnmpCapabilities.php
+ *
+ * -Description-
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @package    LibreNMS
+ * @link       http://librenms.org
+ * @copyright  2021 Tony Murray
+ * @author     Tony Murray <murraytony@gmail.com>
+ */
+
+namespace App\Http\Controllers\Ajax;
+
+use Illuminate\Http\JsonResponse;
+
+class SnmpCapabilities
+{
+    public function __invoke(): JsonResponse
+    {
+        return new JsonResponse([
+            'auth' => \LibreNMS\SNMPCapabilities::supportedAuthAlgorithms(),
+            'crypto' => \LibreNMS\SNMPCapabilities::supportedCryptoAlgorithms(),
+        ]);
+    }
+}