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misp-dashboard/zmq_dispatcher.py

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#!/usr/bin/env python3.5
import time, datetime
import copy
from pprint import pprint
import zmq
import redis
import random
import configparser
import argparse
import os
import sys
import json
import util
import geo_helper
import contributor_helper
import users_helper
import trendings_helper
configfile = os.path.join(os.environ['DASH_CONFIG'], 'config.cfg')
cfg = configparser.ConfigParser()
cfg.read(configfile)
CHANNEL = cfg.get('RedisLog', 'channel')
LISTNAME = cfg.get('RedisLIST', 'listName')
serv_log = redis.StrictRedis(
host=cfg.get('RedisGlobal', 'host'),
port=cfg.getint('RedisGlobal', 'port'),
db=cfg.getint('RedisLog', 'db'))
serv_redis_db = redis.StrictRedis(
host=cfg.get('RedisGlobal', 'host'),
port=cfg.getint('RedisGlobal', 'port'),
db=cfg.getint('RedisDB', 'db'))
serv_list = redis.StrictRedis(
host=cfg.get('RedisGlobal', 'host'),
port=cfg.getint('RedisGlobal', 'port'),
db=cfg.getint('RedisLIST', 'db'))
geo_helper = geo_helper.Geo_helper(serv_redis_db, cfg)
contributor_helper = contributor_helper.Contributor_helper(serv_redis_db, cfg)
users_helper = users_helper.Users_helper(serv_redis_db, cfg)
trendings_helper = trendings_helper.Trendings_helper(serv_redis_db, cfg)
def publish_log(zmq_name, name, content, channel=CHANNEL):
to_send = { 'name': name, 'log': json.dumps(content), 'zmqName': zmq_name }
serv_log.publish(channel, json.dumps(to_send))
def getFields(obj, fields):
jsonWalker = fields.split('.')
itemToExplore = obj
lastName = ""
try:
for i in jsonWalker:
itemToExplore = itemToExplore[i]
lastName = i
if type(itemToExplore) is list:
return { 'name': lastName , 'data': itemToExplore }
else:
return itemToExplore
except KeyError as e:
return ""
##############
## HANDLERS ##
##############
def handler_log(zmq_name, jsonevent):
print('sending', 'log')
return
def handler_dispatcher(zmq_name, jsonObj):
if "Event" in jsonObj:
handler_event(zmq_name, jsonObj)
def handler_keepalive(zmq_name, jsonevent):
print('sending', 'keepalive')
to_push = [ jsonevent['uptime'] ]
publish_log(zmq_name, 'Keepalive', to_push)
def handler_user(zmq_name, jsondata):
print('sending', 'user')
action = jsondata['action']
json_user = jsondata['User']
json_org = jsondata['Organisation']
org = json_org['name']
if action == 'login': #only consider user login
timestamp = int(time.time())
users_helper.add_user_login(timestamp, org)
else:
pass
def handler_conversation(zmq_name, jsonevent):
try: #only consider POST, not THREAD
jsonpost = jsonevent['Post']
except KeyError:
return
print('sending' ,'Post')
org = jsonpost['org_name']
categ = None
action = 'add'
eventName = 'no name or id yet...'
contributor_helper.handleContribution(zmq_name, org,
'Discussion',
None,
action,
isLabeled=False)
# add Discussion
nowSec = int(time.time())
trendings_helper.addTrendingDisc(eventName, nowSec)
def handler_object(zmq_name, jsondata):
print('obj')
return
def handler_sighting(zmq_name, jsondata):
print('sending' ,'sighting')
jsonsight = jsondata['Sighting']
org = jsonsight['Event']['Orgc']['name']
categ = jsonsight['Attribute']['category']
action = jsondata.get('action', None)
contributor_helper.handleContribution(zmq_name, org, 'Sighting', categ, action, pntMultiplier=2)
handler_attribute(zmq_name, jsonsight, hasAlreadyBeenContributed=True)
timestamp = jsonsight.get('date_sighting', None)
if jsonsight['type'] == "0": # sightings
trendings_helper.addSightings(timestamp)
elif jsonsight['type'] == "1": # false positive
trendings_helper.addFalsePositive(timestamp)
def handler_event(zmq_name, jsonobj):
#fields: threat_level_id, id, info
jsonevent = jsonobj['Event']
#Add trending
eventName = jsonevent['info']
timestamp = jsonevent['timestamp']
trendings_helper.addTrendingEvent(eventName, timestamp)
tags = []
for tag in jsonobj.get('EventTag', []):
try:
tags.append(tag['Tag'])
except KeyError:
pass
trendings_helper.addTrendingTags(tags, timestamp)
#redirect to handler_attribute
if 'Attribute' in jsonevent:
attributes = jsonevent['Attribute']
if type(attributes) is list:
for attr in attributes:
jsoncopy = copy.deepcopy(jsonobj)
jsoncopy['Attribute'] = attr
handler_attribute(zmq_name, jsoncopy)
else:
handler_attribute(zmq_name, attributes)
action = jsonobj.get('action', None)
eventLabeled = len(jsonobj.get('EventTag', [])) > 0
org = jsonobj.get('Orgc', {}).get('name', None)
if org is not None:
contributor_helper.handleContribution(zmq_name, org,
'Event',
None,
action,
isLabeled=eventLabeled)
def handler_attribute(zmq_name, jsonobj, hasAlreadyBeenContributed=False):
# check if jsonattr is an attribute object
if 'Attribute' in jsonobj:
jsonattr = jsonobj['Attribute']
#Add trending
categName = jsonattr['category']
timestamp = jsonattr.get('timestamp', int(time.time()))
trendings_helper.addTrendingCateg(categName, timestamp)
tags = []
for tag in jsonattr.get('Tag', []):
try:
tags.append(tag['Tag'])
except KeyError:
pass
trendings_helper.addTrendingTags(tags, timestamp)
to_push = []
for field in json.loads(cfg.get('Log', 'fieldname_order')):
if type(field) is list:
to_join = []
for subField in field:
to_join.append(getFields(jsonobj, subField))
to_add = cfg.get('Log', 'char_separator').join(to_join)
else:
to_add = getFields(jsonobj, field)
to_push.append(to_add)
#try to get coord from ip
if jsonattr['category'] == "Network activity":
geo_helper.getCoordFromIpAndPublish(jsonattr['value'], jsonattr['category'])
#try to get coord from ip
if jsonattr['type'] == "phone-number":
geo_helper.getCoordFromPhoneAndPublish(jsonattr['value'], jsonattr['category'])
if not hasAlreadyBeenContributed:
eventLabeled = len(jsonobj.get('EventTag', [])) > 0
action = jsonobj.get('action', None)
contributor_helper.handleContribution(zmq_name, jsonobj['Event']['Orgc']['name'],
'Attribute',
jsonattr['category'],
action,
isLabeled=eventLabeled)
# Push to log
publish_log(zmq_name, 'Attribute', to_push)
###############
## MAIN LOOP ##
###############
def process_log(zmq_name, event):
topic, eventdata = event.split(' ', maxsplit=1)
jsonevent = json.loads(eventdata)
try:
dico_action[topic](zmq_name, jsonevent)
except KeyError as e:
print(e)
def main(sleeptime):
numMsg = 0
while True:
content = serv_list.rpop(LISTNAME)
if content is None:
print('Processed', numMsg, 'message(s) since last sleep.')
numMsg = 0
time.sleep(sleeptime)
continue
content = content.decode('utf8')
the_json = json.loads(content)
zmqName = the_json['zmq_name']
content = the_json['content']
process_log(zmqName, content)
numMsg += 1
dico_action = {
"misp_json": handler_dispatcher,
"misp_json_event": handler_event,
"misp_json_self": handler_keepalive,
"misp_json_attribute": handler_attribute,
"misp_json_object": handler_object,
"misp_json_sighting": handler_sighting,
"misp_json_organisation": handler_log,
"misp_json_user": handler_user,
"misp_json_conversation": handler_conversation,
"misp_json_object_reference": handler_log,
}
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='The ZMQ dispatcher. It pops from the redis buffer then redispatch it to the correct handlers')
parser.add_argument('-s', '--sleep', required=False, dest='sleeptime', type=int, help='The number of second to wait before checking redis list size', default=5)
args = parser.parse_args()
main(args.sleeptime)
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