mod_log_ringbuffer: Detach event handlers on logging reload (thanks Menel)
Otherwise the global event handlers accumulate, one added each time
logging is reoladed, and each invocation of the signal or event triggers
one dump of each created ringbuffer.
local mode = module:get_option_string("log_auth_ips", "failure");
assert(({ all = true, failure = true, success = true })[mode],
"Unknown log mode: "..tostring(mode).." - valid modes are 'all', 'failure', 'success'");
if mode == "failure" or mode == "all" then
module:hook("authentication-failure", function (event)
local session = event.session;
local username = session.username or session.sasl_handler and session.sasl_handler.username or "?";
session.log("info", "Failed authentication attempt (%s) for user %s@%s from IP: %s",
event.condition or "unknown-condition", username, module.host, session.ip or "?");
end);
end
if mode == "success" or mode == "all" then
module:hook("authentication-success", function (event)
local session = event.session;
session.log("info", "Successful authentication as %s@%s from IP: %s", session.username, module.host, session.ip or "?");
end);
end