77 lines
3.2 KiB
Python
77 lines
3.2 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from typing import TypeVar
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import datetime
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from enum import Enum
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from dateutil.parser import parse
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import logging
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from redis import StrictRedis
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from .libs.helpers import get_socket_path
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from .libs.exceptions import InvalidDateFormat
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Dates = TypeVar('Dates', datetime.datetime, datetime.date, str)
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class IPVersion(Enum):
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v4 = 'v4'
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v6 = 'v6'
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class Querying():
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def __init__(self, loglevel: int=logging.DEBUG):
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self.__init_logger(loglevel)
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self.storage = StrictRedis(unix_socket_path=get_socket_path('storage'), decode_responses=True)
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self.ranking = StrictRedis(unix_socket_path=get_socket_path('storage'), db=1, decode_responses=True)
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self.asn_meta = StrictRedis(unix_socket_path=get_socket_path('storage'), db=2, decode_responses=True)
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def __init_logger(self, loglevel: int):
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self.logger = logging.getLogger(f'{self.__class__.__name__}')
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self.logger.setLevel(loglevel)
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def __normalize_date(self, date: Dates):
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if isinstance(date, datetime.datetime):
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return date.date().isoformat()
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elif isinstance(date, datetime.date):
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return date.isoformat()
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elif isinstance(date, str):
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try:
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return parse(date).date().isoformat()
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except ValueError:
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raise InvalidDateFormat('Unable to parse the date. Should be YYYY-MM-DD.')
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def asns_global_ranking(self, date: Dates=datetime.date.today(),
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ipversion: IPVersion=IPVersion.v4, limit: int=100):
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'''Aggregated ranking of all the ASNs known in the system, weighted by source.'''
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d = self.__normalize_date(date)
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key = f'{d}|asns|{ipversion.value}'
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return self.ranking.zrevrange(key, start=0, end=limit, withscores=True)
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def asn_details(self, asn: int, date: Dates= datetime.date.today(), ipversion: IPVersion=IPVersion.v4):
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'''Aggregated ranking of all the prefixes anounced by the given ASN, weighted by source.'''
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d = self.__normalize_date(date)
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key = f'{d}|{asn}|{ipversion.value}'
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return self.ranking.zrevrange(key, start=0, end=-1, withscores=True)
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def asn_rank(self, asn: int, date: Dates= datetime.date.today(), ipversion: IPVersion=IPVersion.v4):
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'''Get the rank of a single ASN, weighted by source.'''
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d = self.__normalize_date(date)
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key = f'{d}|asns|{ipversion.value}'
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return self.ranking.zscore(key, asn)
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def asn_rank_by_source(self, asn: int, source: str, date: Dates= datetime.date.today(), ipversion: IPVersion=IPVersion.v4):
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'''Get the rank of a single ASN, not weighted by source.'''
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d = self.__normalize_date(date)
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key = f'{d}|{source}|{asn}|rank{ipversion.value}'
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return self.ranking.get(key)
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def asn_details_by_source(self, source: str, asn: int, date: Dates= datetime.date.today(),
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ipversion: IPVersion=IPVersion.v4):
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'''Get the rank of all the prefixes announced by an ASN, not weighted by source.'''
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d = self.__normalize_date(date)
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key = f'{d}|{source}|{asn}|rank{ipversion.value}|prefixes'
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return self.ranking.zrevrange(key, start=0, end=-1, withscores=True)
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