kike: don't disclose secret channels in LUSERS

1 files changed, 17 insertions, 1 deletions

diff --git a/src/kike.c b/src/kike.c
index 2a1744e..e14a646 100644
--- a/src/kike.c
+++ b/src/kike.c
@@ -725,6 +725,15 @@ irc_send_motd (struct client *c)
 	irc_send_reply (c, IRC_RPL_ENDOFMOTD);
 }
 
+static bool
+client_on_channel (struct client *c, const struct channel *chan)
+{
+	for (struct channel_user *iter = chan->users; iter; iter = iter->next)
+		if (!irc_strcmp (iter->nickname, c->nickname))
+			return true;
+	return false;
+}
+
 static void
 irc_send_lusers (struct client *c)
 {
@@ -739,7 +748,14 @@ irc_send_lusers (struct client *c)
 			n_opers++;
 	}
 
-	int n_channels = c->ctx->channels.len;
+	int n_channels = 0;
+	struct str_map_iter iter;
+	str_map_iter_init (&iter, &c->ctx->channels);
+	struct channel *chan;
+	while ((chan = str_map_iter_next (&iter)))
+		if (!(chan->modes & IRC_CHAN_MODE_SECRET)
+		 || client_on_channel (c, chan))
+			n_channels++;
 
 	irc_send_reply (c, IRC_RPL_LUSERCLIENT,
 		n_users, n_services, 1 /* servers total */);