BF: Allow handle case when SKIPLINES lines is not matched

Example is when one or more SKIPLINES is optional in a regex
2013-12-04 23:13:27 +00:00 · 2013-12-04 23:13:27 +00:00 · c03a50b44b
parent c886414e2e
commit c03a50b44b
1 changed files with 2 additions and 1 deletions
--- a/fail2ban/server/failregex.py
+++ b/fail2ban/server/failregex.py
@ -133,7 +133,8 @@ class Regex:
 		n = 0
 		while True:
 			try:
-				skippedLines += self._matchCache.group("skiplines%i" % n)
+				if self._matchCache.group("skiplines%i" % n) is not None:
+					skippedLines += self._matchCache.group("skiplines%i" % n)
 				n += 1
 			except IndexError:
 				break