dns_soa_disable_user_permission/README.md

+#### ISPConfig dns_dns_zone_disable_user_plugin
+
+##### Description
+
+This addon prevents non-admin users to **delete** or **change** DNS Zones in ISPConfig. If the user tries to delete a zone the following error will appear:
+
+
+> You are not allowed to delete DNS Zones.
+
+If the user tries to change DNS Zone settings the following error will appear:
+
+> You are not allowed to change DNS Zonesettings.
+
+
+
+##### Installation
+
+Within the folder of this plugin you can find a `install.sh` script to automatically install the plugin within ISPConfig. However make sure to `chmod +x install.sh` beforehand.
+
+You can also install the plugin manually with these steps:
+
+```bash
+mv -v dns_dns_zone_disable_user_plugin.inc.php /usr/local/ispconfig/interface/lib/plugins
+chown ispconfig:ispconfig /usr/local/ispconfig/interface/lib/plugins/dns_dns_zone_disable_user_plugin.inc.php
+```
+
+**Note:** In both cases make sure to logout and back in to ISPConfig to load th Plugin. 
+
+

dns_soa_disable_user_permission/dns_dns_zone_disable_user_plugin.inc.php

+<?php
+/**
+ * dns_dns_zone_disable_user_plugin
+ *
+ * @author pyte_c
+ */
+
+class dns_dns_zone_disable_user_plugin {
+
+  var $plugin_name = 'dns_dns_zone_disable_user_plugin';
+  var $class_name = 'dns_dns_zone_disable_user_plugin';
+
+  function onLoad() {
+    global $app;
+    // Register Events
+    $app->plugin->registerEvent('dns:dns_soa:on_before_update', 'dns_dns_zone_disable_user_plugin', 'dns_dns_soa_edit');
+    $app->plugin->registerEvent('dns:dns_soa:on_check_delete', 'dns_dns_zone_disable_user_plugin', 'dns_dns_soa_delete');
+  }
+
+  function dns_dns_soa_edit($event_name, $page_form) {
+    global $app;
+    $tmp = $app->db->diffrec($page_form->oldDataRecord, $app->tform->getDataRecord($page_form->id));
+
+    if($tmp['diff_num'] > 0 && !$app->auth->is_admin()) {
+      $app->error("You are not allowed to change DNS Zonesettings.");
+    }
+  }
+
+  function dns_dns_soa_delete($event_name) {
+    global $app;
+
+    // If user is not admin and event is check_delete -> show error
+    if($event_name == 'dns:dns_soa:on_check_delete' && !$app->auth->is_admin()) {
+      $app->error("You are not allowed to delete DNS Zones.");
+    }
+
+  }
+}
+

dns_soa_disable_user_permission/install.sh

+#!/bin/bash
+
+mv -v dns_dns_zone_disable_user_plugin.inc.php /usr/local/ispconfig/interface/lib/plugins
+chown ispconfig:ispconfig /usr/local/ispconfig/interface/lib/plugins/dns_dns_zone_disable_user_plugin.inc.php