class ComplexRules(ScannerPlugin):
""" """
def __init__(self,config,section=None):
ScannerPlugin.__init__(self,config,section)
self.logger=self._logger()
self.requiredvars={
'filename':{
'default':'/etc/postomaat/complexrules.cf',
'description':'File containing rules',
},
}
self.ruleparser=ComplexRuleParser()
self.filereloader=FileList()
def examine(self,suspect):
if not PYPARSING_AVAILABLE:
return DUNNO,''
filename=self.config.get(self.section,'filename').strip()
if not os.path.exists(filename):
self.logger.error("Rulefile %s does not exist"%filename)
return DUNNO,''
self.filereloader.filename=filename
newcontent=self.filereloader._reload_if_necessary()
if newcontent:
self.ruleparser.clear_rules()
reloadok=self.ruleparser.rules_from_list(self.filereloader.content)
numrules=len(self.ruleparser.rules)
if reloadok:
okmsg="all rules ok"
else:
okmsg="some rules failed to load"
self.logger.info("Rule reload complete, %s rules now active, (%s)"%(numrules,okmsg))
retaction,retmessage=self.ruleparser.apply(suspect.values)
return retaction,retmessage
def lint(self):
if not PYPARSING_AVAILABLE:
print("pyparsing is not installed, can not use complex rules")
return False
if RE2_AVAILABLE:
print("Using re2(google) library")
if not self.checkConfig():
print('Error checking config')
return False
filename=self.config.get(self.section,'filename').strip()
if not os.path.exists(filename):
print("Rulefile %s does not exist"%filename)
return False
self.filereloader.filename=filename
newcontent=self.filereloader._reload_if_necessary()
assert newcontent
self.ruleparser.clear_rules()
ok= self.ruleparser.rules_from_list(self.filereloader.content)
rulecount=len(self.ruleparser.rules)
print("%s rules ok"%(rulecount))
return ok
def __str__(self):
return "Complex Rules"
