From 51bf8da3d63e2618ecf05379196b7b465737504c Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Fri, 19 Nov 2021 19:32:13 +0100
Subject: [PATCH] lib/client: don't error out if SASL isn't available on
 RPL_WELCOME

Some servers (soju) might remove the sasl cap on connection
registration.
---
 lib/client.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/client.js b/lib/client.js
index 89d9ed4..a8c43e4 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -58,6 +58,7 @@ export default class Client extends EventTarget {
 	status = Client.Status.DISCONNECTED;
 	serverPrefix = { name: "*" };
 	nick = null;
+	supportsCap = false;
 	availableCaps = {};
 	enabledCaps = {};
 	isupport = new Map();
@@ -234,7 +235,7 @@ export default class Client extends EventTarget {
 		let k;
 		switch (msg.command) {
 		case irc.RPL_WELCOME:
-			if (this.params.saslPlain && this.availableCaps["sasl"] === undefined) {
+			if (this.params.saslPlain && !this.supportsCap) {
 				this.dispatchEvent(new CustomEvent("error", { detail: "Server doesn't support SASL PLAIN" }));
 				this.disconnect();
 				return;
@@ -536,6 +537,7 @@ export default class Client extends EventTarget {
 		let args = msg.params.slice(2);
 		switch (subCmd) {
 		case "LS":
+			this.supportsCap = true;
 			this.addAvailableCaps(args[args.length - 1]);
 			if (args[0] != "*") {
 				console.log("Available server caps:", this.availableCaps);