mod_rest: Reject password that fails saslprep earlier (thanks tgy)
Prevents an error later if/when passing the password through saslprep a
second time in the authentication module, since the prep functions now
reject nil
The error reporting could be improved but that would involve adding a
way to pass errors back out of the check_credentials() function.
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);