config: Allow enabling/disabling channel reg

irc/chanserv.go

@@ -49,6 +49,11 @@ func (server *Server) chanservReceivePrivmsg(client *Client, message string) {
 			return
 		}
 
+		if !server.channelRegistrationEnabled {
+			client.ChanServNotice("Channel registration is not enabled")
+			return
+		}
+
 		server.registeredChannelsMutex.Lock()
 		defer server.registeredChannelsMutex.Unlock()
 

irc/config.go

@@ -72,6 +72,10 @@ type AccountRegistrationConfig struct {
 	}
 }
 
+type ChannelRegistrationConfig struct {
+	Enabled bool
+}
+
 type OperClassConfig struct {
 	Title        string
 	WhoisLine    string
@@ -188,6 +192,10 @@ type Config struct {
 		AuthenticationEnabled bool `yaml:"authentication-enabled"`
 	}
 
+	Channels struct {
+		Registration ChannelRegistrationConfig
+	}
+
 	OperClasses map[string]*OperClassConfig `yaml:"oper-classes"`
 
 	Opers map[string]*OperConfig

irc/server.go

@@ -84,6 +84,7 @@ type Server struct {
 	accountAuthenticationEnabled bool
 	accountRegistration          *AccountRegistration
 	accounts                     map[string]*ClientAccount
+	channelRegistrationEnabled   bool
 	channels                     ChannelNameMap
 	checkIdent                   bool
 	clients                      *ClientLookupSet
@@ -190,6 +191,7 @@ func NewServer(configFilename string, config *Config, logger *logger.Manager) (*
 	server := &Server{
 		accountAuthenticationEnabled: config.Accounts.AuthenticationEnabled,
 		accounts:                     make(map[string]*ClientAccount),
+		channelRegistrationEnabled:   config.Channels.Registration.Enabled,
 		channels:                     make(ChannelNameMap),
 		checkIdent:                   config.Server.CheckIdent,
 		clients:                      NewClientLookupSet(),
@@ -1424,6 +1426,7 @@ func (server *Server) rehash() error {
 	// registration
 	accountReg := NewAccountRegistration(config.Accounts.Registration)
 	server.accountRegistration = &accountReg
+	server.channelRegistrationEnabled = config.Channels.Registration.Enabled
 
 	// set new sendqueue size
 	if config.Server.MaxSendQBytes != server.MaxSendQBytes {