class UnitTestSuite(object):
def setup(self):
current_date = datetime.now()
self.event_index_name = current_date.strftime("events-%Y%m%d")
self.previous_event_index_name = (
current_date - timedelta(days=1)).strftime("events-%Y%m%d")
self.alert_index_name = current_date.strftime("alerts-%Y%m")
self.parse_config()
# Elasticsearch
self.es_client = ElasticsearchClient(
list('{0}'.format(s) for s in self.options.esservers))
# RabbitMQ
mqConnString = 'amqp://{0}:{1}@{2}:{3}//'.format(
self.options.mquser, self.options.mqpassword,
self.options.mqalertserver, self.options.mqport)
mqAlertConn = Connection(mqConnString)
alertExchange = Exchange(name=self.options.alertExchange,
type='topic',
durable=True,
delivery_mode=1)
alertExchange(mqAlertConn).declare()
alertQueue = Queue(self.options.queueName,
exchange=alertExchange,
routing_key=self.options.alerttopic,
durable=False,
no_ack=(not self.options.mqack))
alertQueue(mqAlertConn).declare()
self.rabbitmq_alerts_consumer = mqAlertConn.Consumer(alertQueue,
accept=['json'])
if pytest.config.option.delete_indexes:
self.reset_elasticsearch()
self.setup_elasticsearch()
if pytest.config.option.delete_queues:
self.reset_rabbitmq()
def parse_config(self):
default_config = os.path.join(os.path.dirname(__file__), "config.conf")
options = DotDict()
options.configfile = default_config
options.esservers = list(
getConfig('esservers', 'http://localhost:9200',
options.configfile).split(','))
options.alertExchange = getConfig('alertexchange', 'alerts',
options.configfile)
options.queueName = getConfig('alertqueuename', 'alertBot',
options.configfile)
options.alerttopic = getConfig('alerttopic', 'mozdef.*',
options.configfile)
options.mquser = getConfig('mquser', 'guest', options.configfile)
options.mqalertserver = getConfig('mqalertserver', 'localhost',
options.configfile)
options.mqpassword = getConfig('mqpassword', 'guest',
options.configfile)
options.mqport = getConfig('mqport', 5672, options.configfile)
options.mqack = getConfig('mqack', True, options.configfile)
self.options = options
def reset_rabbitmq(self):
self.rabbitmq_alerts_consumer.channel.queue_purge()
def teardown(self):
if pytest.config.option.delete_indexes:
self.reset_elasticsearch()
if pytest.config.option.delete_queues:
self.reset_rabbitmq()
self.rabbitmq_alerts_consumer.connection.close()
self.rabbitmq_alerts_consumer.close()
def populate_test_event(self, event, event_type='event'):
self.es_client.save_event(body=event, doc_type=event_type)
def populate_test_object(self, event, event_type='event'):
self.es_client.save_object(index='events',
body=event,
doc_type=event_type)
def setup_elasticsearch(self):
default_mapping_file = os.path.join(
os.path.dirname(__file__), "../config/defaultMappingTemplate.json")
mapping_str = ''
with open(default_mapping_file) as data_file:
mapping_str = data_file.read()
self.es_client.create_index(self.event_index_name, mapping=mapping_str)
self.es_client.create_alias('events', self.event_index_name)
self.es_client.create_index(self.previous_event_index_name,
mapping=mapping_str)
self.es_client.create_alias('events-previous',
self.previous_event_index_name)
self.es_client.create_index(self.alert_index_name, mapping=mapping_str)
self.es_client.create_alias('alerts', self.alert_index_name)
def reset_elasticsearch(self):
self.es_client.delete_index(self.event_index_name, True)
self.es_client.delete_index('events', True)
self.es_client.delete_index(self.previous_event_index_name, True)
self.es_client.delete_index('events-previous', True)
self.es_client.delete_index(self.alert_index_name, True)
self.es_client.delete_index('alerts', True)
def flush(self, index_name):
self.es_client.flush(index_name)
def random_ip(self):
return str(random.randint(1, 255)) + "." + str(random.randint(
1, 255)) + "." + str(random.randint(1, 255)) + "." + str(
random.randint(1, 255))
def generate_default_event(self):
current_timestamp = UnitTestSuite.current_timestamp_lambda()
source_ip = self.random_ip()
event = {
"_index": "events",
"_type": "event",
"_source": {
"category": "excategory",
"utctimestamp": current_timestamp,
"receivedtimestamp": current_timestamp,
"mozdefhostname": "mozdefhost",
"hostname": "exhostname",
"severity": "NOTICE",
"source": "exsource",
"summary": "Example summary",
"tags": ['tag1', 'tag2'],
"details": {
"sourceipaddress": source_ip,
"hostname": "exhostname"
}
}
}
return event
def verify_event(self, event, expected_event):
assert sorted(event.keys()) == sorted(expected_event.keys())
for key, value in expected_event.iteritems():
if key == 'receivedtimestamp':
assert type(event[key]) == unicode
else:
assert event[
key] == value, 'Incorrect match for {0}, expected: {1}'.format(
key, value)
@staticmethod
def current_timestamp():
return toUTC(datetime.now()).isoformat()
@staticmethod
def subtract_from_timestamp(date_timedelta, timestamp=None):
if timestamp is None:
timestamp = UnitTestSuite.current_timestamp()
utc_time = parse(timestamp)
custom_date = utc_time - timedelta(**date_timedelta)
return custom_date.isoformat()
@staticmethod
def create_timestamp_from_now(hour, minute, second):
return toUTC(datetime.now().replace(hour=hour,
minute=minute,
second=second).isoformat())
@staticmethod
def current_timestamp_lambda():
return lambda: UnitTestSuite.current_timestamp()
@staticmethod
def subtract_from_timestamp_lambda(date_timedelta, timestamp=None):
return lambda: UnitTestSuite.subtract_from_timestamp(
date_timedelta, timestamp)
@staticmethod
def create_timestamp_from_now_lambda(hour, minute, second):
return lambda: UnitTestSuite.create_timestamp_from_now(
hour, minute, second)
def main():
logger.debug('Connecting to Elasticsearch')
client = ElasticsearchClient(options.esservers)
logger.debug('Connecting to threat exchange')
access_token(options.appid, options.appsecret)
state = State(options.state_file_name)
current_timestamp = toUTC(datetime.now()).isoformat()
# We're setting a default for the past 2 days of data
# if there isnt a state file
since_date_obj = toUTC(datetime.now()) - timedelta(days=2)
since_date = since_date_obj.isoformat()
if 'lastrun' in state.data.keys():
since_date = state.data['lastrun']
# A master dict of all the different types of
# data we want to pull from threat exchange
params = {
'malware_hash': {
'threat_class': Malware,
'query_params': {},
},
'ip_address': {
'threat_class': ThreatDescriptor,
'query_params': {
'type_': 'IP_ADDRESS',
}
},
'domain': {
'threat_class': ThreatDescriptor,
'query_params': {
'type_': 'DOMAIN',
}
},
'uri': {
'threat_class': ThreatDescriptor,
'query_params': {
'type_': 'URI',
}
},
'debug_string': {
'threat_class': ThreatDescriptor,
'query_params': {
'type_': 'DEBUG_STRING',
}
},
'banner': {
'threat_class': ThreatDescriptor,
'query_params': {
'type_': 'BANNER',
}
},
'email_address': {
'threat_class': ThreatDescriptor,
'query_params': {
'type_': 'EMAIL_ADDRESS',
}
},
'file_created': {
'threat_class': ThreatDescriptor,
'query_params': {
'type_': 'FILE_CREATED',
}
},
}
docs = {}
for param_key, param in params.iteritems():
param['query_params']['since'] = str(since_date)
param['query_params']['until'] = str(current_timestamp)
param['query_params']['dict_generator'] = True
docs = pull_threat_exchange_data(param_key, param)
logger.debug('Saving {0} {1} to ES'.format(len(docs), param_key))
for doc in docs:
client.save_object(index='threat-exchange',
doc_type=param_key,
body=doc)
state.data['lastrun'] = current_timestamp
state.save()
