logger: Add notice on connection when server is logging all I/O

irc/logger.go

@@ -48,7 +48,8 @@ var (
 
 // Logger is the main interface used to log debug/info/error messages.
 type Logger struct {
-	loggers []SingleLogger
+	loggers         []SingleLogger
+	DumpingRawInOut bool
 }
 
 // NewLogger returns a new Logger.
@@ -66,6 +67,9 @@ func NewLogger(config []LoggingConfig) (*Logger, error) {
 			Types:         logConfig.Types,
 			ExcludedTypes: logConfig.ExcludedTypes,
 		}
+		if logConfig.Types["userinput"] || logConfig.Types["useroutput"] || (logConfig.Types["*"] && !(logConfig.ExcludedTypes["userinput"] && logConfig.ExcludedTypes["useroutput"])) {
+			logger.DumpingRawInOut = true
+		}
 		if sLogger.MethodFile.Enabled {
 			file, err := os.OpenFile(sLogger.MethodFile.Filename, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0666)
 			if err != nil {

irc/server.go

@@ -658,6 +658,9 @@ func (server *Server) tryRegister(c *Client) {
 	c.RplISupport()
 	server.MOTD(c)
 	c.Send(nil, c.nickMaskString, RPL_UMODEIS, c.nick, c.ModeString())
+	if server.logger.DumpingRawInOut {
+		c.Notice("This server is in debug mode and is logging all user I/O. If you do not wish for everything you send to be readable by the server owner(s), please disconnect.")
+	}
 }
 
 // MOTD serves the Message of the Day.