kike: implement CAP invite-notify

1 files changed, 21 insertions, 1 deletions

diff --git a/kike.c b/kike.c
index 83aa659..824566a 100644
--- a/kike.c
+++ b/kike.c
@@ -296,6 +296,7 @@ enum
 enum
 {
 	IRC_CAP_MULTI_PREFIX             = (1 << 0),
+	IRC_CAP_INVITE_NOTIFY            = (1 << 1)
 };
 
 struct client
@@ -1144,7 +1145,7 @@ irc_handle_cap_ls (struct client *c, struct irc_cap_args *a)
 			a->subcommand, "Ignoring invalid protocol version number");
 
 	c->cap_negotiating = true;
-	client_send (c, "CAP %s LS :multi-prefix", a->target);
+	client_send (c, "CAP %s LS :multi-prefix invite-notify", a->target);
 }
 
 static void
@@ -1155,6 +1156,8 @@ irc_handle_cap_list (struct client *c, struct irc_cap_args *a)
 
 	if (c->caps_enabled & IRC_CAP_MULTI_PREFIX)
 		str_vector_add (&caps, "multi-prefix");
+	if (c->caps_enabled & IRC_CAP_INVITE_NOTIFY)
+		str_vector_add (&caps, "invite-notify");
 
 	char *caps_str = join_str_vector (&caps, ' ');
 	str_vector_free (&caps);
@@ -1167,6 +1170,8 @@ irc_decode_capability (const char *name)
 {
 	if (!strcmp (name, "multi-prefix"))
 		return IRC_CAP_MULTI_PREFIX;
+	if (!strcmp (name, "invite-notify"))
+		return IRC_CAP_INVITE_NOTIFY;
 	return 0;
 }
 
@@ -2482,6 +2487,17 @@ irc_handle_kick (const struct irc_message *msg, struct client *c)
 }
 
 static void
+irc_send_invite_notifications
+	(struct channel *chan, struct client *c, struct client *target)
+{
+	for (struct channel_user *iter = chan->users; iter; iter = iter->next)
+		if (iter->c != target && iter->c->caps_enabled & IRC_CAP_INVITE_NOTIFY)
+			client_send (iter->c, ":%s!%s@%s INVITE %s %s",
+				c->nickname, c->username, c->hostname,
+				target->nickname, chan->name);
+}
+
+static void
 irc_handle_invite (const struct irc_message *msg, struct client *c)
 {
 	if (msg->params.len < 2)
@@ -2507,6 +2523,10 @@ irc_handle_invite (const struct irc_message *msg, struct client *c)
 			str_map_set (&client->invites, channel_name, (void *) 1);
 		else if ((chan->modes & IRC_CHAN_MODE_INVITE_ONLY))
 			RETURN_WITH_REPLY (c, IRC_ERR_CHANOPRIVSNEEDED, channel_name);
+
+		// It's not specified when and how we should send out invite-notify
+		if (chan->modes & IRC_CHAN_MODE_INVITE_ONLY)
+			irc_send_invite_notifications (chan, c, client);
 	}
 
 	client_send (client, ":%s!%s@%s INVITE %s %s",