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view mod_muc_restrict_nick/mod_muc_restrict_nick.lua @ 6514:668b1f0a4dc6

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mod_c2s_limit_sessions: Fix check when it's the first connection Creation of the sessions[username] entry happens after the "pre-resource-bind" event, before the "resource-bind" event. Thus, for a users first connection, it may not exist. This led to an 'attempt to index a nil value' error, fixed here.
author Kim Alvefur <zash@zash.se>
date Wed, 08 Apr 2026 15:56:38 +0200
parents e7b126161e7b
children
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local jid = require "util.jid";
local st = require "util.stanza";

local nick_pattern = module:get_option_string("muc_restrict_nick_pattern", "^%w+$");

module:hook("muc-occupant-pre-join", function (event)
	local nick = jid.resource(event.occupant.nick);
	if not nick:match(nick_pattern) then
		local reply = st.error_reply(event.stanza, "modify", "policy-violation", "Unacceptable nickname, please try another");
		module:send(reply);
		return true;
	end
end);