Merge branch 'patch-5' into 'stable-3.1'

Update rest.php to check if remote api is allowed.

See merge request ispconfig/ispconfig3!893

Author: Till Brehm

interface/web/remote/rest.php

@@ -6,7 +6,11 @@
 $conf['start_session'] = false;
 require_once '../../lib/app.inc.php';
 
-$app->load('rest_handler');
+$app->load('rest_handler,getconf');
+
+$security_config = $app->getconf->get_security_config('permissions');
+if($security_config['remote_api_allowed'] != 'yes') die('Remote API is disabled in security settings.');
+
 $rest_handler = new ISPConfigRESTHandler();
 $rest_handler->run();