96 lines
5.1 KiB
Python
96 lines
5.1 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
import logging
|
|
from redis import StrictRedis
|
|
from .libs.helpers import set_running, unset_running, get_socket_path, load_config_files
|
|
from datetime import datetime, date, timedelta
|
|
from ipaddress import ip_network
|
|
from pathlib import Path
|
|
|
|
|
|
class Ranking():
|
|
|
|
def __init__(self, config_dir: Path=None, loglevel: int=logging.DEBUG):
|
|
self.__init_logger(loglevel)
|
|
self.storage = StrictRedis(unix_socket_path=get_socket_path('storage'), decode_responses=True)
|
|
self.ranking = StrictRedis(unix_socket_path=get_socket_path('storage'), db=1, decode_responses=True)
|
|
self.asn_meta = StrictRedis(unix_socket_path=get_socket_path('storage'), db=2, decode_responses=True)
|
|
self.config_dir = config_dir
|
|
|
|
def __init_logger(self, loglevel):
|
|
self.logger = logging.getLogger(f'{self.__class__.__name__}')
|
|
self.logger.setLevel(loglevel)
|
|
|
|
def rank_a_day(self, day: str):
|
|
# FIXME: If we want to rank an older date, we need to have older datasets for the announces
|
|
v4_last, v6_last = self.asn_meta.mget('v4|last', 'v6|last')
|
|
asns_aggregation_key_v4 = f'{day}|asns|v4'
|
|
asns_aggregation_key_v6 = f'{day}|asns|v6'
|
|
to_delete = set([asns_aggregation_key_v4, asns_aggregation_key_v6])
|
|
r_pipeline = self.ranking.pipeline()
|
|
for source in self.storage.smembers(f'{day}|sources'):
|
|
self.logger.info(f'{day} - Ranking source: {source}')
|
|
source_aggregation_key_v4 = f'{day}|{source}|asns|v4'
|
|
source_aggregation_key_v6 = f'{day}|{source}|asns|v6'
|
|
to_delete.update([source_aggregation_key_v4, source_aggregation_key_v6])
|
|
for asn in self.storage.smembers(f'{day}|{source}'):
|
|
prefixes_aggregation_key_v4 = f'{day}|{asn}|v4'
|
|
prefixes_aggregation_key_v6 = f'{day}|{asn}|v6'
|
|
to_delete.update([prefixes_aggregation_key_v4, prefixes_aggregation_key_v6])
|
|
if asn == '0':
|
|
# Default ASN when no matches. Probably spoofed.
|
|
continue
|
|
self.logger.debug(f'{day} - Ranking source: {source} / ASN: {asn}')
|
|
asn_rank_v4 = 0.0
|
|
asn_rank_v6 = 0.0
|
|
for prefix in self.storage.smembers(f'{day}|{source}|{asn}'):
|
|
if prefix == 'None':
|
|
# FIXME, this should not happen
|
|
self.logger.warning(f'Fucked up prefix in "{day}|{source}|{asn}"')
|
|
continue
|
|
ips = set([ip_ts.split('|')[0]
|
|
for ip_ts in self.storage.smembers(f'{day}|{source}|{asn}|{prefix}')])
|
|
py_prefix = ip_network(prefix)
|
|
prefix_rank = float(len(ips)) / py_prefix.num_addresses
|
|
r_pipeline.zadd(f'{day}|{source}|{asn}|v{py_prefix.version}|prefixes', prefix_rank, prefix)
|
|
if py_prefix.version == 4:
|
|
asn_rank_v4 += len(ips) * self.config_files[source]['impact']
|
|
r_pipeline.zincrby(prefixes_aggregation_key_v4, prefix, prefix_rank * self.config_files[source]['impact'])
|
|
else:
|
|
asn_rank_v6 += len(ips) * self.config_files[source]['impact']
|
|
r_pipeline.zincrby(prefixes_aggregation_key_v6, prefix, prefix_rank * self.config_files[source]['impact'])
|
|
v4count, v6count = self.asn_meta.mget(f'{v4_last}|{asn}|v4|ipcount', f'{v6_last}|{asn}|v6|ipcount')
|
|
if v4count:
|
|
asn_rank_v4 /= float(v4count)
|
|
if asn_rank_v4:
|
|
r_pipeline.set(f'{day}|{source}|{asn}|v4', asn_rank_v4)
|
|
r_pipeline.zincrby(asns_aggregation_key_v4, asn, asn_rank_v4)
|
|
r_pipeline.zadd(source_aggregation_key_v4, asn_rank_v4, asn)
|
|
if v6count:
|
|
asn_rank_v6 /= float(v6count)
|
|
if asn_rank_v6:
|
|
r_pipeline.set(f'{day}|{source}|{asn}|v6', asn_rank_v6)
|
|
r_pipeline.zincrby(asns_aggregation_key_v6, asn, asn_rank_v6)
|
|
r_pipeline.zadd(source_aggregation_key_v6, asn_rank_v4, asn)
|
|
self.ranking.delete(*to_delete)
|
|
r_pipeline.execute()
|
|
|
|
def compute(self):
|
|
self.config_files = load_config_files(self.config_dir)
|
|
self.logger.info('Start ranking')
|
|
set_running(self.__class__.__name__)
|
|
if not self.asn_meta.exists('v4|last') or not self.asn_meta.exists('v6|last'):
|
|
'''Failsafe if asn_meta has not been populated yet'''
|
|
unset_running(self.__class__.__name__)
|
|
return
|
|
today = date.today()
|
|
now = datetime.now()
|
|
today12am = now.replace(hour=12, minute=0, second=0, microsecond=0)
|
|
if now < today12am:
|
|
# Compute yesterday and today's ranking (useful when we have lists generated only once a day)
|
|
self.rank_a_day((today - timedelta(days=1)).isoformat())
|
|
self.rank_a_day(today.isoformat())
|
|
unset_running(self.__class__.__name__)
|
|
self.logger.info('Ranking done.')
|