From 747d4683221b5584f9663695fb48145689b42ceb Mon Sep 17 00:00:00 2001 From: sebres Date: Mon, 4 Jan 2021 02:42:38 +0100 Subject: [PATCH] fixes century selector of %ExY and %Exy in datepattern for tests, considering interval from 2005 (alternate now) to now; + better grouping algorithm for resulting century RE --- fail2ban/server/strptime.py | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) diff --git a/fail2ban/server/strptime.py b/fail2ban/server/strptime.py index 1464a96d1f..39fc795865 100644 --- a/fail2ban/server/strptime.py +++ b/fail2ban/server/strptime.py @@ -36,10 +36,30 @@ def _getYearCentRE(cent=(0,3), distance=3, now=(MyTime.now(), MyTime.alternateNo Thereby respect possible run in the test-cases (alternate date used there) """ cent = lambda year, f=cent[0], t=cent[1]: str(year)[f:t] + def grp(exprset): + c = None + if len(exprset) > 1: + for i in exprset: + if c is None or i[0:-1] == c: + c = i[0:-1] + else: + c = None + break + if not c: + for i in exprset: + if c is None or i[0] == c: + c = i[0] + else: + c = None + break + if c: + return "%s%s" % (c, grp([i[len(c):] for i in exprset])) + return ("(?:%s)" % "|".join(exprset) if len(exprset[0]) > 1 else "[%s]" % "".join(exprset)) \ + if len(exprset) > 1 else "".join(exprset) exprset = set( cent(now[0].year + i) for i in (-1, distance) ) if len(now) and now[1]: - exprset |= set( cent(now[1].year + i) for i in (-1, distance) ) - return "(?:%s)" % "|".join(exprset) if len(exprset) > 1 else "".join(exprset) + exprset |= set( cent(now[1].year + i) for i in xrange(-1, now[0].year-now[1].year+1, distance) ) + return grp(sorted(list(exprset))) timeRE = TimeRE() h' size='10' name='q' value=''/>