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server: rehash on SIGHUP

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This commit is contained in:
Daniel Oaks 2016-10-22 21:20:08 +10:00
parent 1812edb2db
commit ef437348cf
1 changed files with 25 additions and 10 deletions
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33
irc/server.go
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@ -83,6 +83,7 @@ type Server struct {
rehashMutex sync.Mutex
accountRegistration *AccountRegistration
signals chan os.Signal
rehashSignal chan os.Signal
whoWas *WhoWasList
isupport *ISupportList
checkIdent bool
@ -91,7 +92,6 @@ type Server struct {
var (
SERVER_SIGNALS = []os.Signal{
syscall.SIGINT,
syscall.SIGHUP, // eventually we expect to use HUP to reload config
syscall.SIGTERM,
syscall.SIGQUIT,
}
@ -134,6 +134,7 @@ func NewServer(configFilename string, config *Config) *Server {
newConns: make(chan clientConn),
operators: config.Operators(),
signals: make(chan os.Signal, len(SERVER_SIGNALS)),
rehashSignal: make(chan os.Signal, 1),
whoWas: NewWhoWasList(config.Limits.WhowasEntries),
checkIdent: config.Server.CheckIdent,
}
@ -204,6 +205,7 @@ func NewServer(configFilename string, config *Config) *Server {
// Attempt to clean up when receiving these signals.
signal.Notify(server.signals, SERVER_SIGNALS...)
signal.Notify(server.rehashSignal, syscall.SIGHUP)
server.setISupport()
@ -279,6 +281,13 @@ func (server *Server) Run() {
server.Shutdown()
done = true
case <-server.rehashSignal:
// eventually we expect to use HUP to reload config
err := server.rehash()
if err != nil {
Log.error.Println("Failed to rehash:", err.Error())
}
case conn := <-server.newConns:
go NewClient(server, conn.Conn, conn.IsTLS)
@ -874,16 +883,15 @@ func operHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
return false
}
// REHASH
func rehashHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
// rehash reloads the config and applies the changes from the config file.
func (server *Server) rehash() error {
// only let one REHASH go on at a time
server.rehashMutex.Lock()
config, err := LoadConfig(server.configFilename)
if err != nil {
client.Send(nil, server.name, ERR_UNKNOWNERROR, client.nick, "REHASH", fmt.Sprintf("Error rehashing config file: %s", err.Error()))
return false
return fmt.Errorf("Error rehashing config file: %s", err.Error())
}
//TODO(dan): burst CAP DEL for sasl
@ -913,7 +921,7 @@ func rehashHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
for _, sClient := range server.clients.ByNick {
for _, tokenline := range newISupportReplies {
// ugly trickery ahead
sClient.Send(nil, client.server.name, RPL_ISUPPORT, append([]string{sClient.nick}, tokenline...)...)
sClient.Send(nil, server.name, RPL_ISUPPORT, append([]string{sClient.nick}, tokenline...)...)
}
}
@ -931,14 +939,12 @@ func rehashHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
server.listenerEventActMutex.Lock()
if exists {
// update old listener
fmt.Println("refreshing", addr)
server.listeners[addr].Events <- ListenerEvent{
Type: UpdateListener,
NewConfig: tlsListeners[addr],
}
} else {
// destroy nonexistent listener
fmt.Println("destroying", addr)
server.listeners[addr].Events <- ListenerEvent{
Type: DestroyListener,
}
@ -953,14 +959,23 @@ func rehashHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
_, exists := server.listeners[newaddr]
if !exists {
// make new listener
fmt.Println("creating", newaddr)
server.createListener(newaddr, tlsListeners)
}
}
server.rehashMutex.Unlock()
return nil
}
// REHASH
func rehashHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
err := server.rehash()
if err == nil {
client.Send(nil, server.name, RPL_REHASHING, client.nick, "ircd.yaml", "Rehashing")
} else {
client.Send(nil, server.name, ERR_UNKNOWNERROR, client.nick, "REHASH", err.Error())
}
return false
}