Add 'external_port'

src/invidious/helpers/helpers.cr

@@ -24,6 +24,7 @@ user: String,
     registration_enabled: {type: Bool, default: true},
     statistics_enabled:   {type: Bool, default: false},
     admins:               {type: Array(String), default: [] of String},
+    external_port:        {type: Int32 | Nil, default: nil},
   })
 end
 

src/invidious/helpers/utils.cr

@@ -195,6 +195,7 @@ end
 
 def make_host_url(config, kemal_config)
   ssl = config.https_only || kemal_config.ssl
+  port = config.external_port || kemal_config.port
 
   if ssl
     scheme = "https://"
@@ -202,7 +203,8 @@ def make_host_url(config, kemal_config)
     scheme = "http://"
   end
 
-  if kemal_config.port != 80 && kemal_config.port != 443
+  # Add if non-standard port
+  if port != 80 && port != 443
     port = ":#{kemal_config.port}"
   else
     port = ""