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New logtarget: systemd-journal; 

rebased #1403 from da2x:feature-systemd-journal
pull/3007/merge
sebres 2022-08-29 12:30:05 +02:00
parent a08b925468
commit d6896eb26d
5 changed files with 12 additions and 6 deletions
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1
ChangeLog
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@ -46,6 +46,7 @@ ver. 1.0.1-dev-1 (20??/??/??) - development nightly edition
* `filter.d/nginx-http-auth.conf` - extended with parameter mode, so additionally to `auth` (or `normal`)
mode `fallback` (or combined as `aggressive`) can find SSL errors while SSL handshaking, gh-2881
* `action.d/cloudflare-token.conf` - added support for Cloudflare Token APIs. This method is more restrictive and therefore safter than using API Keys.
* new logtarget SYSTEMD-JOURNAL
ver. 0.11.2 (2020/11/23) - heal-the-world-with-security-tools

1
THANKS
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@ -33,6 +33,7 @@ Christoph Haas
Christos Psonis
craneworks
Cyril Jaquier
Daniel Aleksandersen
Daniel B. Cid
Daniel B.
Daniel Black

4
config/fail2ban.conf
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@ -24,13 +24,13 @@
loglevel = INFO
# Option: logtarget
# Notes.: Set the log target. This could be a file, SYSLOG, STDERR or STDOUT.
# Notes.: Set the log target. This could be a file, SYSTEMD-JOURNAL, SYSLOG, STDERR or STDOUT.
# Only one log target can be specified.
# If you change logtarget from the default value and you are
# using logrotate -- also adjust or disable rotation in the
# corresponding configuration file
# (e.g. /etc/logrotate.d/fail2ban on Debian systems)
# Values: [ STDOUT | STDERR | SYSLOG | SYSOUT | FILE ] Default: STDERR
# Values: [ STDOUT | STDERR | SYSLOG | SYSOUT | SYSTEMD-JOURNAL | FILE ] Default: STDERR
#
logtarget = /var/log/fail2ban.log

2
fail2ban/protocol.py
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@ -66,7 +66,7 @@ protocol = [
["set loglevel <LEVEL>", "sets logging level to <LEVEL>. Levels: CRITICAL, ERROR, WARNING, NOTICE, INFO, "
"DEBUG, TRACEDEBUG, HEAVYDEBUG or corresponding numeric value (50-5)"],
["get loglevel", "gets the logging level"],
["set logtarget <TARGET>", "sets logging target to <TARGET>. Can be STDOUT, STDERR, SYSLOG or a file"],
["set logtarget <TARGET>", "sets logging target to <TARGET>. Can be STDOUT, STDERR, SYSLOG, SYSTEMD-JOURNAL or a file"],
["get logtarget", "gets logging target"],
["set syslogsocket auto|<SOCKET>", "sets the syslog socket path to auto or <SOCKET>. Only used if logtarget is SYSLOG"],
["get syslogsocket", "gets syslog socket path"],

10
fail2ban/server/server.py
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@ -678,7 +678,10 @@ class Server:
return True
padding = logOptions.get('padding')
# set a format which is simpler for console use
if systarget == "SYSLOG":
if systarget == "SYSTEMD-JOURNAL":
from systemd.journal import JournalHandler
hdlr = JournalHandler(SYSLOG_IDENTIFIER='fail2ban')
elif systarget == "SYSLOG":
facility = logOptions.get('facility', 'DAEMON').upper()
# backwards compatibility - default no padding for syslog handler:
if padding is None: padding = '0'
@ -754,7 +757,8 @@ class Server:
verbose = self.__verbose-1
fmt = getVerbosityFormat(verbose, addtime=addtime, padding=padding)
# tell the handler to use this format
hdlr.setFormatter(logging.Formatter(fmt))
if target != "SYSTEMD-JOURNAL":
hdlr.setFormatter(logging.Formatter(fmt))
logger.addHandler(hdlr)
# Does not display this message at startup.
if self.__logTarget is not None:
@ -793,7 +797,7 @@ class Server:
return self.__syslogSocket
def flushLogs(self):
if self.__logTarget not in ['STDERR', 'STDOUT', 'SYSLOG']:
if self.__logTarget not in ['STDERR', 'STDOUT', 'SYSLOG', 'SYSTEMD-JOURNAL']:
for handler in getLogger("fail2ban").handlers:
try:
handler.doRollover()