ENH: Allow setting of ISO8601 via datepattern (default for systemd)

fail2ban/client/beautifier.py

@@ -123,6 +123,8 @@ class Beautifier:
 				msg = "Current date pattern set to: "
 				if response is None:
 					msg = msg + "Default Detectors"
+				elif response[0] is None:
+					msg = msg + "%s" % response[1]
 				else:
 					msg = msg + "%s (%s)" % response
 			elif inC[2] in ("ignoreip", "addignoreip", "delignoreip"):

fail2ban/server/filter.py

@@ -28,7 +28,7 @@ from failmanager import FailManager
 from ticket import FailTicket
 from jailthread import JailThread
 from datedetector import DateDetector
-from datetemplate import DatePatternRegex
+from datetemplate import DatePatternRegex, DateISO8601
 from mytime import MyTime
 from failregex import FailRegex, Regex, RegexException
 
@@ -199,11 +199,15 @@ class Filter(JailThread):
 
 	def setDatePattern(self, pattern):
 		dateDetector = DateDetector()
-		template = DatePatternRegex()
-		if pattern[0] == "^": # Special extra to enable anchor
-			template.setPattern(pattern[1:], anchor=True)
+		if pattern == "ISO8601":
+			template = DateISO8601()
+			template.setName("ISO8601")
 		else:
-			template.setPattern(pattern, anchor=False)
+			template = DatePatternRegex()
+			if pattern[0] == "^": # Special extra to enable anchor
+				template.setPattern(pattern[1:], anchor=True)
+			else:
+				template.setPattern(pattern, anchor=False)
 		dateDetector.appendTemplate(template)
 		self.dateDetector = dateDetector
 		logSys.info("Date pattern set to `%r`: `%s`" %
@@ -221,7 +225,10 @@ class Filter(JailThread):
 		if len(templates) > 1:
 			return None # Default Detectors in use
 		elif len(templates) == 1:
-			pattern =  templates[0].getPattern()
+			if hasattr(templates[0], "getPattern"):
+				pattern =  templates[0].getPattern()
+			else:
+				pattern = None
 			if templates[0].getRegex()[0] == "^":
 				pattern = "^" + pattern
 			return pattern, templates[0].getName()

fail2ban/server/filtersystemd.py

@@ -57,6 +57,7 @@ class FilterSystemd(JournalFilter): # pragma: systemd no cover
 		# Initialise systemd-journal connection
 		self.__journal = journal.Reader(converters={'__CURSOR': lambda x: x})
 		self.__matches = []
+		self.setDatePattern("ISO8601")
 		logSys.debug("Created FilterSystemd")