Fix LE certs for IPv6 only domains Fixes 394

Author: jc21

backend/internal/nginx.js

@@ -273,13 +273,16 @@ const internalNginx = {
 		return new Promise((resolve, reject) => {
 			let template = null;
 			let filename = '/data/nginx/temp/letsencrypt_' + certificate.id + '.conf';
+
 			try {
 				template = fs.readFileSync(__dirname + '/../templates/letsencrypt-request.conf', {encoding: 'utf8'});
 			} catch (err) {
 				reject(new error.ConfigurationError(err.message));
 				return;
 			}
 
+			certificate.ipv6 = internalNginx.ipv6Enabled();
+
 			renderEngine
 				.parseAndRender(template, certificate)
 				.then((config_text) => {

backend/templates/letsencrypt-request.conf

@@ -2,6 +2,10 @@
 
 server {
   listen 80;
+{% if ipv6 -%}
+  listen [::]:80;
+{% endif %}
+
   server_name {{ domain_names | join: " " }};
 
   access_log /data/logs/letsencrypt-requests.log standard;