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803 lines
29 KiB
Python
803 lines
29 KiB
Python
# -*- mode: python; indent-tabs-mode: nil; py-indent-offset: 4; coding: utf-8 -*-
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# https://github.com/nusenu/noContactInfo_Exit_Excluder
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# https://github.com/TheSmashy/TorExitRelayExclude
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"""
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This extends nusenu's basic idea of using the stem library to
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dynamically exclude nodes that are likely to be bad by putting them
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on the ExcludeNodes or ExcludeExitNodes setting of a running Tor.
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* https://github.com/nusenu/noContactInfo_Exit_Excluder
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* https://github.com/TheSmashy/TorExitRelayExclude
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The basic cut is to exclude Exit nodes that do not have a contact.
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That can be extended to nodes that do not have an email in the contact etc.
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"""
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"""But there's a problem, and your Tor notice.log will tell you about it:
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you could exclude the nodes needed to access hidden services or
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directorues. So we need to add to the process the concept of a whitelist.
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In addition, we may have our own blacklist of nodes we want to exclude,
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or use these lists for other applications like selektor.
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So we make two files that are structured in YAML:
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```
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/etc/tor/yaml/torrc-goodnodes.yaml
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GoodNodes:
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Relays:
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IntroductionPoints:
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- NODEFINGERPRINT
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...
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By default all sections of the goodnodes.yaml are used as a whitelist.
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/etc/tor/yaml/torrc-badnodes.yaml
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BadNodes:
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ExcludeExitNodes:
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BadExit:
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# $0000000000000000000000000000000000000007
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```
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That part requires [PyYAML](https://pyyaml.org/wiki/PyYAML)
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https://github.com/yaml/pyyaml/
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Right now only the ExcludeExitNodes section is used by we may add ExcludeNodes
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later, and by default all sub-sections of the badnodes.yaml are used as a
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ExcludeExitNodes but it can be customized with the lWanted commandline arg.
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The original idea has also been extended to add different conditions for
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exclusion: the ```--contact``` commandline arg is a comma sep list of conditions:
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* Empty - no contact info
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* NoEmail - no @ sign in the contact',
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More may be added later.
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Because you don't want to exclude the introduction points to any onion
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you want to connect to, ```--white_onions``` should whitelist the
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introduction points to a comma sep list of onions, but is
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currently broken in stem 1.8.0: see:
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* https://github.com/torproject/stem/issues/96
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* https://gitlab.torproject.org/legacy/trac/-/issues/25417
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```--torrc_output``` will write the torrc ExcludeNodes configuration to a file.
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Now for the final part: we lookup the Contact info of every server
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that is currently in our Tor, and check it for its existence.
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If it fails to provide the well-know url, we assume its a bogus
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relay and add it to a list of nodes that goes on ExcludeNodes -
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not just exclude Exit.
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If the Contact info is good we add the list of fingerprints to add
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to ExitNodes, a whitelist of relays to use as exits.
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```--proof_output``` will write the contact info as a ciiss dictionary
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to a YAML file. If the proof is uri-rsa, the well-known file of fingerprints
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is downloaded and the fingerprints are added on a 'fps' field we create
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of that fingerprint's entry of the YAML dictionary. This file is read at the
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beginning of the program to start with a trust database, and only new
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contact info from new relays are added to the dictionary.
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You can expect it to take an hour or two the first time this is run:
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>700 domains.
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For usage, do ```python3 exclude_badExits.py --help`
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"""
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import sys
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import os
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import re
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import socket
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import time
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import argparse
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from io import StringIO
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from urllib3.util.ssl_match_hostname import CertificateError
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from stem import InvalidRequest
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from stem.control import Controller
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from stem.connection import IncorrectPassword
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from stem.util.tor_tools import is_valid_fingerprint
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try:
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import yaml
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except:
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yaml = None
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try:
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from unbound import ub_ctx,RR_TYPE_TXT,RR_CLASS_IN
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except:
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ub_ctx = RR_TYPE_TXT = RR_CLASS_IN = None
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try:
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if 'COLOREDLOGS_LEVEL_STYLES' not in os.environ:
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os.environ['COLOREDLOGS_LEVEL_STYLES'] = 'spam=22;debug=28;verbose=34;notice=220;warning=202;success=118,bold;error=124;critical=background=red'
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# https://pypi.org/project/coloredlogs/
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import coloredlogs
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except ImportError as e:
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coloredlogs = False
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from trustor_poc import oDownloadUrl, idns_validate, TrustorError
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from support_onions import sTorResolve, getaddrinfo, icheck_torrc, bAreWeConnected
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global LOG
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import logging
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import warnings
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warnings.filterwarnings('ignore')
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LOG = logging.getLogger()
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ETC_DIR = '/etc/tor/yaml'
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aTRUST_DB = {}
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aTRUST_DB_INDEX = {}
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sDETAILS_URL = "https://metrics.torproject.org/rs.html#details/"
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# You can call this while bootstrapping
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sEXCLUDE_EXIT_KEY = 'ExcludeNodes'
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sINCLUDE_EXIT_KEY = 'ExitNodes'
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sINCLUDE_GUARD_KEY = 'EntryNodes'
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# maybe we should check these each time but we
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# got them by sorting bad relays in the wild
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lKNOWN_NODNS = [
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'0x0.is',
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'a9.wtf',
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'artikel5ev.de',
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'arvanode.net',
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'dodo.pm',
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'dra-family.github.io',
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'eraldonion.org',
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'galtland.network',
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'interfesse.net',
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'kryptonit.org',
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'lonet.sh',
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'moneneis.de',
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'nx42.de',
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'ormycloud.org',
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'plied-privacy.net',
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'redacted.org',
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'rification-for-nusenu.net',
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'sv.ch',
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'thingtohide.nl',
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'tikel10.org',
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'tor-exit-2.aa78i2efsewr0neeknk.xyz',
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'tor-exit-3.aa78i2efsewr0neeknk.xyz',
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'torix-relays.org',
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'tse.com',
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'tuxli.org',
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'w.digidow.eu',
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'www.quintex.com',
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]
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def oMakeController(sSock='', port=9051):
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import getpass
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if sSock and os.path.exists(sSock):
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controller = Controller.from_socket_file(path=sSock)
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else:
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controller = Controller.from_port(port=port)
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sys.stdout.flush()
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p = getpass.unix_getpass(prompt='Controller Password: ', stream=sys.stderr)
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controller.authenticate(p)
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return controller
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oBAD_NODES = {}
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oBAD_ROOT = 'BadNodes'
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def lYamlBadNodes(sFile,
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section=sEXCLUDE_EXIT_KEY,
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lWanted=['BadExit']):
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global oBAD_NODES
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l = []
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if not yaml: return l
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if os.path.exists(sFile):
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with open(sFile, 'rt') as oFd:
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oBAD_NODES = yaml.safe_load(oFd)
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# BROKEN
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# root = 'ExcludeNodes'
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# for elt in o[oBAD_ROOT][root][section].keys():
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# if lWanted and elt not in lWanted: continue
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# # l += o[oBAD_ROOT][root][section][elt]
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global lKNOWN_NODNS
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root = 'ExcludeDomains'
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if root not in oBAD_NODES[oBAD_ROOT] or not oBAD_NODES[oBAD_ROOT][root]:
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oBAD_NODES[oBAD_ROOT][root] = lKNOWN_NODNS
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else:
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lKNOWN_NODNS = oBAD_NODES[oBAD_ROOT][root]
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return l
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oGOOD_NODES = {}
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oGOOD_ROOT = 'GoodNodes'
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def lYamlGoodNodes(sFile='/etc/tor/torrc-goodnodes.yaml'):
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global oGOOD_NODES
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root = oGOOD_ROOT
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l = []
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if not yaml: return l
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if os.path.exists(sFile):
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with open(sFile, 'rt') as oFd:
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o = yaml.safe_load(oFd)
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oGOOD_NODES = o
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if 'GuardNodes' in o[oGOOD_ROOT].keys():
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l += o[oGOOD_ROOT]['GuardNodes']
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# yq '.Nodes.IntroductionPoints|.[]' < /etc/tor/torrc-goodnodes.yaml
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return l
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def lIntroductionPoints(controller, lOnions):
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"""not working in stem 1.8.3"""
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l = []
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for elt in lOnions:
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desc = controller.get_hidden_service_descriptor(elt, await_result=True, timeout=None)
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l = desc.introduction_points()
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if l:
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LOG.warn(f"{elt} NO introduction points\n")
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continue
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LOG.info(f"{elt} introduction points are...\n")
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for introduction_point in l:
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LOG.info(' %s:%s => %s' % (introduction_point.address,
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introduction_point.port,
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introduction_point.identifier))
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l += [introduction_point.address]
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return l
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tBAD_URLS = set()
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lATS = ['abuse', 'email']
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lINTS = ['ciissversion', 'uplinkbw', 'signingkeylifetime', 'memory']
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lBOOLS = ['dnssec', 'dnsqname', 'aesni', 'autoupdate', 'dnslocalrootzone',
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'sandbox', 'offlinemasterkey']
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def aVerifyContact(a, fp, https_cafile, timeout=20, host='127.0.0.1', port=9050):
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global tBAD_URLS
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global lKNOWN_NODNS
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# cleanups for yaml
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for elt in lINTS:
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if elt in a:
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a[elt] = int(a[elt])
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for elt in lBOOLS:
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if elt in a:
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if a[elt] in ['y','yes', 'true', 'True']:
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a[elt] = True
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else:
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a[elt] = False
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for elt in lATS:
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if elt in a:
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a[elt] = a[elt].replace('[]', '@')
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a.update({'fps': []})
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keys = list(a.keys())
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# test the url for fps and add it to the array
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if 'proof' not in keys:
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LOG.warn(f"{fp} 'proof' not in {keys}")
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return a
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if aTRUST_DB_INDEX and fp in aTRUST_DB_INDEX.keys():
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aCachedContact = aTRUST_DB_INDEX[fp]
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if aCachedContact['email'] == a['email']:
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return aCachedContact
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if 'url' not in keys:
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if 'uri' not in keys:
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a['url'] = ''
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LOG.warn(f"{fp} url and uri not in {keys}")
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return a
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a['url'] = a['uri']
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LOG.debug(f"{fp} 'uri' but not 'url' in {keys}")
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# drop through
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if a['url'].startswith('http:'):
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a['url'] = 'https:' +a['url'][5:]
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elif not a['url'].startswith('https:'):
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a['url'] = 'https:' +a['url']
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# domain should be a unique key for contacts
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domain = a['url'][8:].strip('/')
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if domain in lKNOWN_NODNS:
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LOG.warn(f"{domain} in lKNOWN_NODNS")
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return {}
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try:
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ip = sTorResolve(domain)
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except Exception as e:
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ip = ''
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if ip == '':
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try:
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lpair = getaddrinfo(domain, 443)
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except Exception as e:
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LOG.warn("{e}")
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lpair = None
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lKNOWN_NODNS.append(domain)
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if lpair is None:
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LOG.warn(f"TorResolv and getaddrinfo failed for {domain}")
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return a
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ip = lpair[0]
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if a['proof'] not in ['uri-rsa']:
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# only support uri for now
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if False and ub_ctx:
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fp_domain = fp +'.'+domain
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if idns_validate(fp_domain,
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libunbound_resolv_file='resolv.conf',
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dnssec_DS_file='dnssec-root-trust',
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) == 0:
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pass
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LOG.warn(f"{fp} proof={a['proof']} not supported yet")
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return a
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LOG.debug(f"{len(keys)} contact fields for {fp}")
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try:
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LOG.debug(f"Downloading from {domain} for {fp}")
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o = oDownloadUrl(domain, https_cafile,
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timeout=timeout, host=host, port=port)
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# requests response: text "reason", "status_code"
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except AttributeError as e:
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LOG.exception(f"AttributeError downloading from {domain} {e}")
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except CertificateError as e:
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LOG.warn(f"CertificateError downloading from {domain} {e}")
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tBAD_URLS.add(a['url'])
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except TrustorError as e:
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LOG.warn(f"TrustorError downloading from {domain} {e.args}")
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tBAD_URLS.add(a['url'])
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except (BaseException ) as e:
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LOG.error(f"Exception {type(e)} downloading from {domain} {e}")
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else:
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if o.status_code >= 300:
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LOG.warn(f"Error downloading from {domain} {o.status_code} {o.reason}")
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# any reason retry?
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tBAD_URLS.add(a['url'])
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return a
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l = o.text.upper().strip().split('\n')
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if not l:
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# already squacked in lD
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LOG.warn(f"Downloading from {domain} empty for {fp}")
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tBAD_URLS.add(a['url'])
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else:
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a['fps'] = [elt for elt in l if elt and len(elt) == 40
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and not elt.startswith('#')]
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return a
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def aParseContact(contact, fp):
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"""
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See the Tor ContactInfo Information Sharing Specification v2
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https://nusenu.github.io/ContactInfo-Information-Sharing-Specification/
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"""
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l = [line for line in contact.strip().replace('"', '').split(' ')
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if ':' in line]
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LOG.debug(f"{fp} {len(l)} fields")
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s = f'"{fp}":\n'
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s += '\n'.join([f" {line}\"".replace(':',': \"', 1)
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for line in l])
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oFd = StringIO(s)
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a = yaml.safe_load(oFd)
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return a
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def vwait_for_controller(controller, wait_boot):
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if bAreWeConnected() is False:
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raise SystemExit("we are not connected")
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percent = i = 0
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# You can call this while boostrapping
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while percent < 100 and i < wait_boot:
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bootstrap_status = controller.get_info("status/bootstrap-phase")
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progress_percent = re.match('.* PROGRESS=([0-9]+).*', bootstrap_status)
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percent = int(progress_percent.group(1))
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LOG.info(f"Bootstrapping {percent}%")
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time.sleep(5)
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i += 5
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def vsetup_logging(log_level, logfile=''):
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global LOG
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add = True
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# stem fucks up logging
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from stem.util import log
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logging.getLogger('stem').setLevel(30)
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logging._defaultFormatter = logging.Formatter(datefmt='%m-%d %H:%M:%S')
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logging._defaultFormatter.default_time_format = '%m-%d %H:%M:%S'
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logging._defaultFormatter.default_msec_format = ''
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kwargs = dict(level=log_level,
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force=True,
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format='%(levelname)-4s %(message)s')
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if logfile:
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add = logfile.startswith('+')
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sub = logfile.startswith('-')
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if add or sub:
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logfile = logfile[1:]
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kwargs['filename'] = logfile
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if coloredlogs:
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# https://pypi.org/project/coloredlogs/
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aKw = dict(level=log_level,
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logger=LOG,
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stream=sys.stdout if add else None,
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fmt='%(levelname)-4s %(message)s'
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)
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coloredlogs.install(**aKw)
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if logfile:
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oHandler = logging.FileHandler(logfile)
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LOG.addHandler(oHandler)
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LOG.info(f"CSetting log_level to {log_level!s}")
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else:
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logging.basicConfig(**kwargs)
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if add and logfile:
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oHandler = logging.StreamHandler(sys.stdout)
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LOG.addHandler(oHandler)
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LOG.info(f"SSetting log_level to {log_level!s}")
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def oMainArgparser(_=None):
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try:
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from OpenSSL import SSL
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lCAfs = SSL._CERTIFICATE_FILE_LOCATIONS
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except:
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lCAfs = []
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CAfs = []
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for elt in lCAfs:
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if os.path.exists(elt):
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CAfs.append(elt)
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if not CAfs:
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CAfs = ['']
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parser = argparse.ArgumentParser(add_help=True,
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epilog=__doc__)
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parser.add_argument('--https_cafile', type=str,
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help="Certificate Authority file (in PEM)",
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default=CAfs[0])
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parser.add_argument('--proxy_host', '--proxy-host', type=str,
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default='127.0.0.1',
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help='proxy host')
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parser.add_argument('--proxy_port', '--proxy-port', default=9050, type=int,
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help='proxy control port')
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parser.add_argument('--proxy_ctl', '--proxy-ctl',
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default='/run/tor/control' if os.path.exists('/run/tor/control') else 9051,
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type=str,
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help='control socket - or port')
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parser.add_argument('--torrc',
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default='/etc/tor/torrc-defaults',
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type=str,
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help='torrc to check for suggestions')
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parser.add_argument('--timeout', default=60, type=int,
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help='proxy download connect timeout')
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parser.add_argument('--good_nodes', type=str,
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default=os.path.join(ETC_DIR, 'torrc-goodnodes.yaml'),
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help="Yaml file of good nodes that should not be excluded")
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parser.add_argument('--bad_nodes', type=str,
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default=os.path.join(ETC_DIR, 'torrc-badnodes.yaml'),
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help="Yaml file of bad nodes that should also be excluded")
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parser.add_argument('--contact', type=str, default='Empty,NoEmail',
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help="comma sep list of conditions - Empty,NoEmail")
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parser.add_argument('--bad_contacts', type=str,
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default=os.path.join(ETC_DIR, 'badcontacts.yaml'),
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help="Yaml file of bad contacts that bad FPs are using")
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parser.add_argument('--wait_boot', type=int, default=120,
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help="Seconds to wait for Tor to booststrap")
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parser.add_argument('--log_level', type=int, default=20,
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help="10=debug 20=info 30=warn 40=error")
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|
parser.add_argument('--bad_sections', type=str,
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default='MyBadExit',
|
|
help="sections of the badnodes.yaml to use, comma separated, '' BROKEN")
|
|
parser.add_argument('--white_onions', type=str,
|
|
default='',
|
|
help="comma sep. list of onions to whitelist their introduction points - BROKEN")
|
|
parser.add_argument('--torrc_output', type=str, default='',
|
|
help="Write the torrc configuration to a file")
|
|
parser.add_argument('--proof_output', type=str, default=os.path.join(ETC_DIR, '/proof.yaml'),
|
|
help="Write the proof data of the included nodes to a YAML file")
|
|
return parser
|
|
|
|
def vwrite_badnodes(oArgs, oBAD_NODES, slen):
|
|
if oArgs.bad_nodes:
|
|
tmp = oArgs.bad_nodes +'.tmp'
|
|
bak = oArgs.bad_nodes +'.bak'
|
|
with open(tmp, 'wt') as oFYaml:
|
|
yaml.dump(oBAD_NODES, indent=2, stream=oFYaml)
|
|
LOG.info(f"Wrote {slen} to {oArgs.bad_nodes}")
|
|
oFYaml.close()
|
|
if os.path.exists(oArgs.bad_nodes):
|
|
os.rename(oArgs.bad_nodes, bak)
|
|
os.rename(tmp, oArgs.bad_nodes)
|
|
|
|
def vwrite_goodnodes(oArgs, oGOOD_NODES, slen):
|
|
if oArgs.good_nodes:
|
|
tmp = oArgs.good_nodes +'.tmp'
|
|
bak = oArgs.good_nodes +'.bak'
|
|
with open(tmp, 'wt') as oFYaml:
|
|
yaml.dump(oGOOD_NODES, indent=2, stream=oFYaml)
|
|
LOG.info(f"Wrote {slen} good nodes to {oArgs.good_nodes}")
|
|
oFYaml.close()
|
|
if os.path.exists(oArgs.good_nodes):
|
|
os.rename(oArgs.good_nodes, bak)
|
|
os.rename(tmp, oArgs.good_nodes)
|
|
|
|
def iMain(lArgs):
|
|
global aTRUST_DB
|
|
global aTRUST_DB_INDEX
|
|
|
|
global lKNOWN_NODNS
|
|
parser = oMainArgparser()
|
|
oArgs = parser.parse_args(lArgs)
|
|
|
|
vsetup_logging(oArgs.log_level)
|
|
if bAreWeConnected() is False:
|
|
raise SystemExit("we are not connected")
|
|
|
|
sFile = oArgs.torrc
|
|
if sFile and os.path.exists(sFile):
|
|
icheck_torrc(sFile, oArgs)
|
|
|
|
sFile = oArgs.proof_output
|
|
if sFile and os.path.exists(sFile):
|
|
try:
|
|
with open(sFile, 'rt') as oFd:
|
|
aTRUST_DB = yaml.safe_load(oFd)
|
|
# reverse lookup of fps to contacts
|
|
# but...
|
|
for k,v in aTRUST_DB.items():
|
|
aTRUST_DB_INDEX[k] = v
|
|
if 'fps' in aTRUST_DB[k].keys():
|
|
for fp in aTRUST_DB[k]['fps']:
|
|
aTRUST_DB_INDEX[fp] = v
|
|
|
|
except Exception as e:
|
|
LOG.exception(f"Error reading YAML TrustDB {sFile} {e}")
|
|
|
|
if os.path.exists(oArgs.proxy_ctl):
|
|
controller = oMakeController(sSock=oArgs.proxy_ctl)
|
|
else:
|
|
port =int(oArgs.proxy_ctl)
|
|
controller = oMakeController(port=port)
|
|
|
|
vwait_for_controller(controller, oArgs.wait_boot)
|
|
|
|
if oArgs.proof_output:
|
|
proof_output_tmp = oArgs.proof_output + '.tmp'
|
|
|
|
elt = controller.get_conf('UseMicrodescriptors')
|
|
if elt != '0' :
|
|
LOG.error('"UseMicrodescriptors 0" is required in your /etc/tor/torrc. Exiting.')
|
|
controller.set_conf('UseMicrodescriptors', 0)
|
|
# does it work dynamically?
|
|
return 2
|
|
|
|
elt = controller.get_conf(sEXCLUDE_EXIT_KEY)
|
|
if elt and elt != '{??}':
|
|
LOG.warn(f"{sEXCLUDE_EXIT_KEY} is in use already")
|
|
|
|
lGoodOverrideSet = lYamlGoodNodes(oArgs.good_nodes)
|
|
LOG.info(f"lYamlGoodNodes {len(lGoodOverrideSet)} from {oArgs.good_nodes}")
|
|
|
|
if oArgs.white_onions:
|
|
l = lIntroductionPoints(controller, oArgs.white_onions.split(','))
|
|
lGoodOverrideSet += l
|
|
|
|
exit_excludelist = []
|
|
if oArgs.bad_nodes and os.path.exists(oArgs.bad_nodes):
|
|
if False and oArgs.bad_sections:
|
|
# BROKEN
|
|
sections = oArgs.bad_sections.split(',')
|
|
exit_excludelist = lYamlBadNodes(oArgs.bad_nodes,
|
|
lWanted=sections,
|
|
section=sEXCLUDE_EXIT_KEY)
|
|
else:
|
|
exit_excludelist = lYamlBadNodes(oArgs.bad_nodes)
|
|
|
|
LOG.info(f"lYamlBadNodes {len(exit_excludelist)}")
|
|
|
|
tProofGoodFps = set()
|
|
iDnsContact = 0
|
|
lBadContactUrls = []
|
|
iFakeContact = 0
|
|
aBadContacts = {}
|
|
aProofUri = {}
|
|
lConds = oArgs.contact.split(',')
|
|
iR = 0
|
|
|
|
relays = controller.get_server_descriptors()
|
|
for relay in relays:
|
|
iR += 1
|
|
if not is_valid_fingerprint(relay.fingerprint):
|
|
LOG.warn('Invalid Fingerprint: %s' % relay.fingerprint)
|
|
continue
|
|
relay.fingerprint = relay.fingerprint.upper()
|
|
|
|
sofar = f"G:{len(list(aProofUri.keys()))} U:{iDnsContact} F:{iFakeContact} BF:{len(exit_excludelist)} GF:{len(tProofGoodFps)} #{iR}"
|
|
if not relay.exit_policy.is_exiting_allowed():
|
|
if sEXCLUDE_EXIT_KEY == 'ExcludeNodes':
|
|
LOG.debug(f"{relay.fingerprint} not an exit {sofar}")
|
|
else:
|
|
LOG.warn(f"{relay.fingerprint} not an exit {sofar}")
|
|
# continue
|
|
|
|
if relay.fingerprint in tProofGoodFps:
|
|
# we already have it.
|
|
continue
|
|
|
|
if relay.fingerprint in aTRUST_DB:
|
|
if aTRUST_DB[relay.fingerprint]['fps'] and \
|
|
relay.fingerprint in aTRUST_DB[relay.fingerprint]['fps']:
|
|
tProofGoodFps.add(relay.fingerprint)
|
|
continue
|
|
|
|
if type(relay.contact) == bytes:
|
|
# dunno
|
|
relay.contact = str(relay.contact, 'UTF-8')
|
|
|
|
if ('Empty' in lConds and not relay.contact) or \
|
|
('NoEmail' in lConds and relay.contact and not '@' in relay.contact):
|
|
exit_excludelist.append(relay.fingerprint)
|
|
continue
|
|
|
|
if not relay.contact:
|
|
# should be unreached 'Empty' should always be in lConds
|
|
continue
|
|
|
|
c = relay.contact.lower()
|
|
i = c.find('url:')
|
|
if i >=0: c = c[i+4:]
|
|
i = c.find(' ')
|
|
if i >=0: c = c[:i]
|
|
domain = c.replace('https://', '').replace('http://', '').strip('/')
|
|
|
|
if domain in lKNOWN_NODNS:
|
|
LOG.info(f"{relay.fingerprint} skipping in lKNOWN_NODNS {domain} {sofar}")
|
|
exit_excludelist.append(relay.fingerprint)
|
|
|
|
elif 'dns-rsa' in relay.contact.lower():
|
|
LOG.info(f"skipping 'dns-rsa' {relay.fingerprint}.{domain} {sofar}")
|
|
iDnsContact += 1
|
|
|
|
elif 'proof:uri-rsa' in relay.contact.lower():
|
|
a = aParseContact(relay.contact, relay.fingerprint)
|
|
if not a:
|
|
LOG.warn(f"{relay.fingerprint} did not parse {sofar}")
|
|
exit_excludelist.append(relay.fingerprint)
|
|
continue
|
|
if 'url' in a and a['url']:
|
|
if a['url'] in tBAD_URLS:
|
|
# The fp is using a contact with a URL we know is bad
|
|
LOG.info(f"{relay.fingerprint} skipping in tBAD_URLS {a['url']} {sofar}")
|
|
exit_excludelist.append(relay.fingerprint)
|
|
continue
|
|
domain = a['url'].replace('https://', '').replace('http://', '')
|
|
if domain in lKNOWN_NODNS:
|
|
# The fp is using a contact with a URL we know is bogus
|
|
LOG.info(f"{relay.fingerprint} skipping in lKNOWN_NODNS {a['url']} {sofar}")
|
|
exit_excludelist.append(relay.fingerprint)
|
|
continue
|
|
|
|
|
|
b = aVerifyContact(list(a.values())[0],
|
|
relay.fingerprint,
|
|
oArgs.https_cafile,
|
|
timeout=oArgs.timeout,
|
|
host=oArgs.proxy_host,
|
|
port=oArgs.proxy_port)
|
|
|
|
if not b or not 'fps' in b or not b['fps'] or not b['url']:
|
|
LOG.warn(f"{relay.fingerprint} did NOT VERIFY {sofar}")
|
|
# If it's giving contact info that doesnt check out
|
|
# it could be a bad exit with fake contact info
|
|
exit_excludelist.append(relay.fingerprint)
|
|
aBadContacts[relay.fingerprint] = b
|
|
continue
|
|
|
|
if relay.fingerprint not in b['fps']:
|
|
LOG.warn(f"{relay.fingerprint} the FP IS NOT in the list of fps {sofar}")
|
|
# assume a fp is using a bogus contact
|
|
exit_excludelist.append(relay.fingerprint)
|
|
iFakeContact += 1
|
|
aBadContacts[relay.fingerprint] = b
|
|
continue
|
|
|
|
# great contact had good fps and we are in them
|
|
tProofGoodFps.union(b['fps'])
|
|
if relay.fingerprint in aProofUri.keys():
|
|
# a cached entry
|
|
continue
|
|
|
|
LOG.info(f"{relay.fingerprint} verified {b['url']} {sofar}")
|
|
# add our contact info to the trustdb
|
|
aProofUri[relay.fingerprint] = b
|
|
if oArgs.proof_output and oArgs.log_level <= 20:
|
|
# as we go along then clobber
|
|
with open(proof_output_tmp, 'wt') as oFYaml:
|
|
yaml.dump(aProofUri, indent=2, stream=oFYaml)
|
|
oFYaml.close()
|
|
|
|
exit_excludelist = list(set(exit_excludelist).difference(set(lGoodOverrideSet)))
|
|
|
|
if oArgs.proof_output and aProofUri:
|
|
with open(proof_output_tmp, 'wt') as oFYaml:
|
|
yaml.dump(aProofUri, indent=2, stream=oFYaml)
|
|
LOG.info(f"Wrote {len(list(aProofUri))} proof details to {oArgs.proof_output}")
|
|
oFYaml.close()
|
|
if os.path.exists(oArgs.proof_output):
|
|
bak = oArgs.proof_output +'.bak'
|
|
os.rename(oArgs.proof_output, bak)
|
|
os.rename(proof_output_tmp, oArgs.proof_output)
|
|
|
|
if oArgs.torrc_output and exit_excludelist:
|
|
with open(oArgs.torrc_output, 'wt') as oFTorrc:
|
|
oFTorrc.write(f"{sEXCLUDE_EXIT_KEY} {','.join(exit_excludelist)}\n")
|
|
oFTorrc.write(f"{sINCLUDE_EXIT_KEY} {','.join(tProofGoodFps)}\n")
|
|
oFTorrc.write(f"{sINCLUDE_GUARD_KEY} {','.join(o[oGOOD_ROOT]['GuardNodes'])}\n")
|
|
LOG.info(f"Wrote tor configuration to {oArgs.torrc_output}")
|
|
oFTorrc.close()
|
|
|
|
if oArgs.bad_contacts and aBadContacts:
|
|
# for later analysis
|
|
with open(oArgs.bad_contacts, 'wt') as oFYaml:
|
|
yaml.dump(aBadContacts, indent=2, stream=oFYaml)
|
|
oFYaml.close()
|
|
|
|
global oBAD_NODES
|
|
oBAD_NODES[oBAD_ROOT]['ExcludeNodes']['BadExit'] = exit_excludelist
|
|
oBAD_NODES[oBAD_ROOT]['ExcludeDomains'] = lKNOWN_NODNS
|
|
vwrite_badnodes(oArgs, oBAD_NODES, str(len(exit_excludelist)))
|
|
|
|
global oGOOD_NODES
|
|
oGOOD_NODES['GoodNodes']['Relays']['ExitNodes'] = tProofGoodFps
|
|
vwrite_goodnodes(oArgs, oGOOD_NODES, str(len(tProofGoodFps)))
|
|
|
|
retval = 0
|
|
try:
|
|
logging.getLogger('stem').setLevel(30)
|
|
try:
|
|
if exit_excludelist:
|
|
LOG.info(f"{sEXCLUDE_EXIT_KEY} {len(exit_excludelist)} net bad exit nodes")
|
|
controller.set_conf(sEXCLUDE_EXIT_KEY, exit_excludelist)
|
|
|
|
except stem.SocketClosed as e:
|
|
LOG.error(f"Failed setting {sEXCLUDE_EXIT_KEY} bad exit nodes in Tor")
|
|
retval += 1
|
|
|
|
try:
|
|
if tProofGoodFps:
|
|
LOG.info(f"{sINCLUDE_EXIT_KEY} {len(tProofGoodFps)} good nodes")
|
|
controller.set_conf(sINCLUDE_EXIT_KEY, tProofGoodFps)
|
|
except stem.SocketClosed as e:
|
|
LOG.error(f"Failed setting {sINCLUDE_EXIT_KEY} good exit nodes in Tor")
|
|
retval += 1
|
|
|
|
try:
|
|
o = oGOOD_NODES
|
|
if 'GuardNodes' in o[oGOOD_ROOT].keys():
|
|
LOG.info(f"{sINCLUDE_GUARD_KEY} {len(o[oGOOD_ROOT]['GuardNodes'])} guard nodes")
|
|
controller.set_conf(sINCLUDE_GUARD_KEY, o[oGOOD_ROOT]['GuardNodes'])
|
|
except stem.SocketClosed as e:
|
|
LOG.errro(f"Failed setting {sINCLUDE_EXIT_KEY} good exit nodes in Tor")
|
|
retval += 1
|
|
|
|
return retval
|
|
|
|
except InvalidRequest as e:
|
|
# Unacceptable option value: Invalid router list.
|
|
LOG.error(str(e))
|
|
retval = 1
|
|
return retval
|
|
except KeyboardInterrupt:
|
|
return 0
|
|
except Exception as e:
|
|
LOG.exception(str(e))
|
|
retval = 2
|
|
return retval
|
|
finally:
|
|
# wierd we are getting stem errors during the final return
|
|
# with a traceback that doesnt correspond to any real flow
|
|
# File "/usr/lib/python3.9/site-packages/stem/control.py", line 2474, in set_conf
|
|
# self.set_options({param: value}, False)
|
|
logging.getLogger('stem').setLevel(40)
|
|
try:
|
|
for elt in controller._event_listeners:
|
|
controller.remove_event_listener(elt)
|
|
controller.close()
|
|
except Exception as e:
|
|
LOG.warn(str(e))
|
|
|
|
if __name__ == '__main__':
|
|
try:
|
|
i = iMain(sys.argv[1:])
|
|
except IncorrectPassword as e:
|
|
LOG.error(e)
|
|
i = 1
|
|
except KeyboardInterrupt:
|
|
i = 0
|
|
except Exception as e:
|
|
LOG.exception(e)
|
|
i = 2
|
|
sys.exit(i)
|