From 32dcd2a6bdb62d6a0927da5825e994402bc9d899 Mon Sep 17 00:00:00 2001
From: Aleksandr Razumov <ernado@go-faster.org>
Date: Thu, 28 Nov 2024 13:22:27 +0300
Subject: [PATCH] fix(telegram): handle auth errors on reconnect

Fix #1458
---
 telegram/connect.go | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/telegram/connect.go b/telegram/connect.go
index 73b7065f45..9c7e3d7053 100644
--- a/telegram/connect.go
+++ b/telegram/connect.go
@@ -12,6 +12,7 @@ import (
 	"github.com/gotd/td/exchange"
 	"github.com/gotd/td/tdsync"
 	"github.com/gotd/td/telegram/auth"
+	"github.com/gotd/td/tgerr"
 )
 
 func (c *Client) runUntilRestart(ctx context.Context) error {
@@ -54,7 +55,17 @@ func (c *Client) runUntilRestart(ctx context.Context) error {
 }
 
 func (c *Client) isPermanentError(err error) bool {
-	return errors.Is(err, exchange.ErrKeyFingerprintNotFound)
+	// See https://github.com/gotd/td/issues/1458.
+	if errors.Is(err, exchange.ErrKeyFingerprintNotFound) {
+		return true
+	}
+	if tgerr.Is(err, "AUTH_KEY_UNREGISTERED") || tgerr.Is(err, "SESSION_EXPIRED") {
+		return true
+	}
+	if auth.IsUnauthorized(err) {
+		return true
+	}
+	return false
 }
 
 func (c *Client) reconnectUntilClosed(ctx context.Context) error {