Set default user modes when always-on clients reconnect.

Add default-user-modes configuration to conventional.yaml.
Fix comment on DefaultUserModes.

conventional.yaml

@@ -430,6 +430,12 @@ accounts:
         offer-list:
             #- "oragono.test"
 
+    # modes that are set by default when a user connects
+    # if unset, no user modes will be set by default
+    # +i is invisible (a user's channels are hidden from whois replies)
+    # see  /QUOTE HELP umodes  for more user modes
+    # default-user-modes: +i
+
     # support for deferring password checking to an external LDAP server
     # you should probably ignore this section! consult the grafana docs for details:
     # https://grafana.com/docs/grafana/latest/auth/ldap/

irc/client.go

@@ -375,6 +375,10 @@ func (server *Server) AddAlwaysOnClient(account ClientAccount, chnames []string,
 		alwaysOn: true,
 	}
 
+	for _, defaultMode := range config.Accounts.defaultUserModes {
+		client.SetMode(defaultMode, true)
+	}
+
 	client.SetMode(modes.TLS, true)
 	client.writerSemaphore.Initialize(1)
 	client.history.Initialize(0, 0)

irc/modes.go

@@ -22,7 +22,7 @@ var (
 	}
 
 	// DefaultUserModes are set on all users when they login.
-	// this can be overridden in the `server` config, with the `default-user-modes` key
+	// this can be overridden in the `accounts` config, with the `default-user-modes` key
 	DefaultUserModes = modes.Modes{}
 )