fix-up for run_with_except_hook: avoid very sporadic error "'NoneType' object has no attribute 'exc_info'" (https://bugs.python.org/issue7336),
only extremely fast systems are affected ATM (2.x / 3.x), if thread ends nothing is available in .
Usage `logtarget = target[facility=..., datetime=on|off, format="..."]`:
- `facility` - specify syslog facility (default `daemon`, see https://docs.python.org/2/library/logging.handlers.html#sysloghandler
for the list of facilities);
- `datetime` - add date-time to the message (default on, ignored if `format` specified);
- `format` - specify own format how it will be logged, for example for short-log into STDOUT:
`fail2ban-server -f --logtarget 'stdout[format="%(relativeCreated)5d | %(message)s"]' start`;
Closes gh-1980
* introduces 2 new format directives (with corresponding `%Ex` prefix for more precise parsing):
- %k - one- or two-digit number giving the hour of the day (0-23) on a 24-hour clock,
(corresponds %H, but allows space if not zero-padded).
- %l - one- or two-digit number giving the hour of the day (12-11) on a 12-hour clock,
(corresponds %I, but allows space if not zero-padded).
* mysqld-auth test extended to cover new date-format in log.
Closes gh-1639
Added non-greedy fallback for quoted something (with lookahead simulated possessive greedy catch of non-quoted parts `[^"]*(?=")`).
Note that because host-info's are hereafter (with foreign input in-between), we would not use greedy or non-greedy catch-alls (`.*` or `.*?`) here (preventing performance losses).
When reporting the error `AUTH command used when not advertised`, Exim
starts with `SMTP protocol error in "........."`. Here, Exim logs the
SMTP command as it was provided by the connecting client.
https://github.com/Exim/exim/blob/exim-4_89+fixes/src/src/smtp_in.c#L2850
According to RFC 5321 (SMTP) "[..] a command verb [..] MAY be encoded
in upper case, lower case, or any mixture of upper and lower case with
no impact on its meaning."
https://tools.ietf.org/html/rfc5321#section-2.4
Lower case `auth login` brute-force attempts were seen in the wild and
were not caught by the current failregex.
This commit makes the failregex case-insensitive for the `AUTH`
command, so that lower case (`auth`) or mixed case (`aUtH`) now also
match. The failregex was already case-insensitive for the command
arguments (e.g. `AUTH login` already matched).
fix sporadic error by shutdown server in with_foreground_server_thread decorator (if shutdown too fast, but end-phase still does not reached the tester-thread);
Note the systemd-backend does not need the logpath at all;
Some defaults normalized (minimized configs, don't need to overwrite values in distribution-related path if equal).
sebres