Fixing #5170 - Deny Remote Agent

If you only have on poller or one active poller, disable the remote agent.

remote_agent.php

@@ -133,7 +133,7 @@ function remote_agent_strip_domain($host) {
 }
 
 function remote_client_authorized() {
-	global $poller_db_cnn_id;
+	global $config, $poller_db_cnn_id;
 
 	/* don't allow to run from the command line */
 	$client_addr = get_client_addr();
@@ -142,6 +142,10 @@ function remote_client_authorized() {
 		return false;
 	}
 
+	if ($config['poller_id'] == 1) {
+		return false;
+	}
+
 	if (!filter_var($client_addr, FILTER_VALIDATE_IP)) {
 		cacti_log('ERROR: Invalid remote agent client IP Address.  Exiting');
 
@@ -156,9 +160,9 @@ function remote_client_authorized() {
 		$client_name = remote_agent_strip_domain($client_name);
 	}
 
-	$pollers = db_fetch_assoc('SELECT * FROM poller', true, $poller_db_cnn_id);
+	$pollers = db_fetch_assoc('SELECT * FROM poller WHERE disabled = ""', true, $poller_db_cnn_id);
 
-	if (cacti_sizeof($pollers)) {
+	if (cacti_sizeof($pollers) > 1) {
 		foreach ($pollers as $poller) {
 			if (remote_agent_strip_domain($poller['hostname']) == $client_name) {
 				return true;