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# -*- coding: utf-8 -*-
import json
from . import check_input_attribute, standard_error_message
from pyipasnhistory import IPASNHistory
from pymisp import MISPAttribute, MISPEvent, MISPObject
misperrors = {'error': 'Error'}
mispattributes = {'input': ['ip-src', 'ip-dst'], 'format': 'misp_standard'}
moduleinfo = {'version': '0.2', 'author': 'Raphaël Vinot',
'description': 'Query an IP ASN history service (',
'module-type': ['expansion', 'hover']}
def parse_result(attribute, values):
event = MISPEvent()
initial_attribute = MISPAttribute()
mapping = {'asn': ('AS', 'asn'), 'prefix': ('ip-src', 'subnet-announced')}
for last_seen, response in values['response'].items():
asn = MISPObject('asn')
asn.add_attribute('last-seen', **{'type': 'datetime', 'value': last_seen})
for feature, attribute_fields in mapping.items():
attribute_type, object_relation = attribute_fields
asn.add_attribute(object_relation, **{'type': attribute_type, 'value': response[feature]})
asn.add_reference(initial_attribute.uuid, 'related-to')
event = json.loads(event.to_json())
return {key: event[key] for key in ('Attribute', 'Object')}
def handler(q=False):
if q is False:
return False
request = json.loads(q)
if not request.get('attribute') or not check_input_attribute(request['attribute']):
return {'error': f'{standard_error_message}, which should contain at least a type, a value and an uuid.'}
if request['attribute']['type'] not in mispattributes['input']:
return {'error': 'Unsupported attribute type.'}
toquery = request['attribute']['value']
ipasn = IPASNHistory()
values = ipasn.query(toquery)
if not values:
misperrors['error'] = 'Unable to find the history of this IP'
return misperrors
return {'results': parse_result(request['attribute'], values)}
def introspection():
return mispattributes
def version():
return moduleinfo