From 3b1c1b835c6439507b68d7666df61fa96e61095c Mon Sep 17 00:00:00 2001
From: "C. McEnroe" <june@causal.agency>
Date: Sun, 24 Jan 2021 00:49:53 -0500
Subject: Support echo-message capability

Only request it with labeled-response, since it is impossible to
correlate messages to clients without. For clients without echo-message,
synthesize a label on PRIVMSG/NOTICE/TAGMSG, then filter out received
messages with that label.
---
 state.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'state.c')

diff --git a/state.c b/state.c
index 41ffdd0..6b26589 100644
--- a/state.c
+++ b/state.c
@@ -90,6 +90,9 @@ static void handleCap(struct Message *msg) {
 
 	if (!strcmp(msg->params[1], "LS") || !strcmp(msg->params[1], "NEW")) {
 		caps &= ~(CapSASL | CapSTS | CapUnsupported);
+		if (caps & CapEchoMessage && !(caps & CapLabeledResponse)) {
+			caps &= ~CapEchoMessage;
+		}
 		if (caps) {
 			serverFormat("CAP REQ :%s\r\n", capList(caps, NULL));
 		} else {
-- 
cgit 1.4.1