Merge branch 'stable-3.1' into 'stable-3.1'

nginx server listen ipv6 and ipv4 and SSL (Fixes #5190)

See merge request ispconfig/ispconfig3!901

server/conf/nginx_vhost.conf.master

@@ -3,7 +3,9 @@ server {
 <tmpl_if name='ipv6_enabled'>
         listen [<tmpl_var name='ipv6_address'>]:<tmpl_var name='http_port'>;
 </tmpl_if>
-		
+<tmpl_if name='ipv6_wildcard'>
+        listen [::]:<tmpl_var name='http_port'>;
+</tmpl_if>
 <tmpl_if name='ssl_enabled'>
         listen <tmpl_var name='ip_address'>:<tmpl_var name='https_port'> ssl{tmpl_if name='enable_http2' op='==' value='y'} http2{/tmpl_if}{tmpl_if name='enable_spdy' op='==' value='y'} spdy{/tmpl_if};
 		ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
@@ -11,6 +13,9 @@ server {
 		# ssl_prefer_server_ciphers on;
 <tmpl_if name='ipv6_enabled'>
         listen [<tmpl_var name='ipv6_address'>]:<tmpl_var name='https_port'> ssl{tmpl_if name='enable_http2' op='==' value='y'} http2{/tmpl_if}{tmpl_if name='enable_spdy' op='==' value='y'} spdy{/tmpl_if};
+</tmpl_if>
+<tmpl_if name='ipv6_wildcard'>
+        listen [::]:<tmpl_var name='https_port'> ssl{tmpl_if name='enable_http2' op='==' value='y'} http2{/tmpl_if}{tmpl_if name='enable_spdy' op='==' value='y'} spdy{/tmpl_if};
 </tmpl_if>
         ssl_certificate <tmpl_var name='ssl_crt_file'>;
         ssl_certificate_key <tmpl_var name='ssl_key_file'>;

server/plugins-available/nginx_plugin.inc.php

@@ -991,6 +991,7 @@ class nginx_plugin {
 				}
 			}
 		}
+		if($data['new']['ip_address'] == '*' && $data['new']['ipv6_address'] == '') $tpl->setVar('ipv6_wildcard', 1);
 
 		// PHP-FPM
 		// Support for multiple PHP versions