trimmed the code since it seems to be enough to provide TLS 1.3 when Nginx was linked against OpenSSL 1.1.1 at build time

Author: ms217

server/plugins-available/nginx_plugin.inc.php

@@ -1622,20 +1622,15 @@ function update($event_name, $data) {
 		$vhost_data['logging'] = $web_config['logging'];
 
                 // check if OpenSSL and Nginx supports TLS 1.3
-		$nginx_version = $app->system->getnginxversion(true);
-		$openssl_version = $app->system->getopensslversion(true);
-
 		$output = $app->system->exec_safe('nginx -V 2>&1');
 
 		if(preg_match('/built with OpenSSL\s*(\d+)(\.(\d+)(\.(\d+))*)?(\D|$)/i', $output[0], $matches)) {
                         $nginx_openssl_ver = $matches[1] . (isset($matches[3]) ? '.' . $matches[3] : '') . (isset($matches[5]) ? '.' . $matches[5] : '');
 		}
 
-		if(version_compare($app->system->getopensslversion(true), $nginx_openssl_ver, '>=')) {
-			if((version_compare($app->system->getnginxversion(true), '1.13.0', '>=') && version_compare($app->system->getopensslversion(true), '1.1.1', '>='))) {
-				$app->log('Enable TLS 1.3 for: '.$domain, LOGLEVEL_DEBUG);
-				$vhost_data['tls13_available'] = $app->system->getopensslversion(true);
-			}
+		if((version_compare($app->system->getnginxversion(true), '1.13.0', '>=') && version_compare($nginx_openssl_ver, '1.1.1', '>='))) {
+			$app->log('Enable TLS 1.3 for: '.$domain, LOGLEVEL_DEBUG);
+			$vhost_data['tls13_available'] = $nginx_openssl_ver;
 		}
 
 		$tpl->setVar($vhost_data);