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fail2ban/2009f1c4346597dcc4fd27151d2...

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From 2009f1c4346597dcc4fd27151d220ea4a7806fdd Mon Sep 17 00:00:00 2001
From: sebres <serg.brester@sebres.de>
Date: Tue, 10 Jan 2017 10:59:53 +0100
Subject: [PATCH] fail2ban-regex: fix for systemd-journal (see gh-1657)
---
fail2ban/client/fail2banregex.py | 31 ++++++++++++++-----------------
fail2ban/server/filtersystemd.py | 8 ++++++++
2 files changed, 22 insertions(+), 17 deletions(-)
diff --git a/fail2ban/client/fail2banregex.py b/fail2ban/client/fail2banregex.py
index 71f5095..13fa35d 100755
--- a/fail2ban/client/fail2banregex.py
+++ b/fail2ban/client/fail2banregex.py
@@ -43,12 +43,12 @@
from ConfigParser import NoOptionError, NoSectionError, MissingSectionHeaderError
try:
- from systemd import journal
from ..server.filtersystemd import FilterSystemd
except ImportError:
- journal = None
+ FilterSystemd = None
from ..version import version
+from .jailreader import JailReader
from .filterreader import FilterReader
from ..server.filter import Filter, FileContainer
from ..server.failregex import RegexException
@@ -82,7 +82,7 @@ def pprint_list(l, header=None):
s = ''
output( s + "| " + "\n| ".join(l) + '\n`-' )
-def journal_lines_gen(myjournal):
+def journal_lines_gen(flt, myjournal): # pragma: no cover
while True:
try:
entry = myjournal.get_next()
@@ -90,7 +90,7 @@ def journal_lines_gen(myjournal):
continue
if not entry:
break
- yield FilterSystemd.formatJournalEntry(entry)
+ yield flt.formatJournalEntry(entry)
def get_opt_parser():
# use module docstring for help output
@@ -513,25 +513,22 @@ def start(self, opts, args):
except IOError as e:
output( e )
return False
- elif cmd_log == "systemd-journal": # pragma: no cover
- if not journal:
+ elif cmd_log.startswith("systemd-journal"): # pragma: no cover
+ if not FilterSystemd:
output( "Error: systemd library not found. Exiting..." )
return False
- myjournal = journal.Reader(converters={'__CURSOR': lambda x: x})
+ output( "Use systemd journal" )
+ output( "Use encoding : %s" % self.encoding )
+ backend, beArgs = JailReader.extractOptions(cmd_log)
+ flt = FilterSystemd(None, **beArgs)
+ flt.setLogEncoding(self.encoding)
+ myjournal = flt.getJournalReader()
journalmatch = self._journalmatch
self.setDatePattern(None)
if journalmatch:
- try:
- for element in journalmatch:
- if element == "+":
- myjournal.add_disjunction()
- else:
- myjournal.add_match(element)
- except ValueError:
- output( "Error: Invalid journalmatch: %s" % shortstr(" ".join(journalmatch)) )
- return False
+ flt.addJournalMatch(journalmatch)
output( "Use journal match : %s" % " ".join(journalmatch) )
- test_lines = journal_lines_gen(myjournal)
+ test_lines = journal_lines_gen(flt, myjournal)
else:
output( "Use single line : %s" % shortstr(cmd_log) )
test_lines = [ cmd_log ]
diff --git a/fail2ban/server/filtersystemd.py b/fail2ban/server/filtersystemd.py
index 3023155..908112a 100644
--- a/fail2ban/server/filtersystemd.py
+++ b/fail2ban/server/filtersystemd.py
@@ -175,6 +175,14 @@ def uni_decode(self, x):
return v
##
+ # Get journal reader
+ #
+ # @return journal reader
+
+ def getJournalReader(self):
+ return self.__journal
+
+ ##
# Format journal log entry into syslog style
#
# @param entry systemd journal entry dict