package soju import ( "gopkg.in/irc.v3" "strings" ) func forwardChannel(dc *downstreamConn, ch *upstreamChannel) { if !ch.complete { panic("Tried to forward a partial channel") } sendTopic(dc, ch) // TODO: rpl_topicwhotime sendNames(dc, ch) } func sendTopic(dc *downstreamConn, ch *upstreamChannel) { downstreamName := dc.marshalEntity(ch.conn.network, ch.Name) if ch.Topic != "" { dc.SendMessage(&irc.Message{ Prefix: dc.srv.prefix(), Command: irc.RPL_TOPIC, Params: []string{dc.nick, downstreamName, ch.Topic}, }) } else { dc.SendMessage(&irc.Message{ Prefix: dc.srv.prefix(), Command: irc.RPL_NOTOPIC, Params: []string{dc.nick, downstreamName, "No topic is set"}, }) } } func sendNames(dc *downstreamConn, ch *upstreamChannel) { downstreamName := dc.marshalEntity(ch.conn.network, ch.Name) emptyNameReply := &irc.Message{ Prefix: dc.srv.prefix(), Command: irc.RPL_NAMREPLY, Params: []string{dc.nick, string(ch.Status), downstreamName, ""}, } maxLength := maxMessageLength - len(emptyNameReply.String()) var buf strings.Builder for nick, memberships := range ch.Members { s := memberships.Format(dc) + dc.marshalEntity(ch.conn.network, nick) n := buf.Len() + 1 + len(s) if buf.Len() != 0 && n > maxLength { // There's not enough space for the next space + nick. dc.SendMessage(&irc.Message{ Prefix: dc.srv.prefix(), Command: irc.RPL_NAMREPLY, Params: []string{dc.nick, string(ch.Status), downstreamName, buf.String()}, }) buf.Reset() } if buf.Len() != 0 { buf.WriteByte(' ') } buf.WriteString(s) } if buf.Len() != 0 { dc.SendMessage(&irc.Message{ Prefix: dc.srv.prefix(), Command: irc.RPL_NAMREPLY, Params: []string{dc.nick, string(ch.Status), downstreamName, buf.String()}, }) } dc.SendMessage(&irc.Message{ Prefix: dc.srv.prefix(), Command: irc.RPL_ENDOFNAMES, Params: []string{dc.nick, downstreamName, "End of /NAMES list"}, }) }