From a8e922fc890a8ef2c1c43b940f0cfc3768ea1cff Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?louiz=E2=80=99?= Date: Tue, 15 May 2018 19:31:26 +0200 Subject: Handle the NAMES message for an already-joined or non-existing channel If a user manually does a NAMES query, the result were interpreted as a user list, which is wrong. And with the special * argument, this would even cause a crash. Fix #3357 --- src/irc/irc_client.cpp | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'src') diff --git a/src/irc/irc_client.cpp b/src/irc/irc_client.cpp index fca043c..d0b2153 100644 --- a/src/irc/irc_client.cpp +++ b/src/irc/irc_client.cpp @@ -641,6 +641,11 @@ void IrcClient::set_and_forward_user_list(const IrcMessage& message) { const std::string chan_name = utils::tolower(message.arguments[2]); IrcChannel* channel = this->get_channel(chan_name); + if (channel->joined) + { + this->forward_server_message(message); + return; + } std::vector nicks = utils::split(message.arguments[3], ' '); for (const std::string& nick: nicks) { @@ -776,6 +781,16 @@ void IrcClient::on_channel_completely_joined(const IrcMessage& message) { const std::string chan_name = utils::tolower(message.arguments[1]); IrcChannel* channel = this->get_channel(chan_name); + if (chan_name == "*" || channel->joined) + { + this->forward_server_message(message); + return; + } + if (!channel->get_self()) + { + log_error("End of NAMES list but we never received our own nick."); + return; + } channel->joined = true; this->bridge.send_user_join(this->hostname, chan_name, channel->get_self(), channel->get_self()->get_most_significant_mode(this->sorted_user_modes), true); -- cgit v1.2.3