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