From 86301905a652d52510f05f66d6ab2f986c79ea9d Mon Sep 17 00:00:00 2001
From: JustAnotherArchivist <JustAnotherArchivist@users.noreply.github.com>
Date: Sun, 10 Oct 2021 02:31:58 +0000
Subject: [PATCH] Gracefully handle channel bans and other join errors

---
 http2irc.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/http2irc.py b/http2irc.py
index 31ae084..6ce47a6 100644
--- a/http2irc.py
+++ b/http2irc.py
@@ -655,8 +655,12 @@ class IRCClientProtocol(asyncio.Protocol):
 		                      ircstates.numerics.ERR_BANNEDFROMCHAN,
 		                      ircstates.numerics.ERR_BADCHANNELKEY,
 		                     ):
-			self.logger.error(f'Failed to join channel: {message!r}, terminating connection')
-			self.transport.close()
+			self.logger.error(f'Failed to join channel {line.params[1]}: {message!r}')
+			errChannel = self.server.casefold(line.params[1])
+			for channel in self.channels:
+				if self.server.casefold(channel) == errChannel:
+					self.channels.remove(channel)
+					break
 
 		# PART errors
 		elif line.command == '442':