예제 #1
0
class DirKeyCertificateObject(TorDocumentObject):

    START_ITEM = ItemInt('dir-key-certificate-version')

    ITEMS = [
        # fingerprint 14C131DFC5C6F93646BE72FA1401C02A8DF2E8B4
        Item('fingerprint'),
        # dir-key-published 2019-06-01 00:00:00
        ItemDate('dir-key-published'),
        # dir-key-expires 2019-11-01 00:00:00
        ItemDate('dir-key-expires'),
        ItemMulti('dir-identity-key', 'rsa public key'),
        ItemMulti('dir-signing-key', 'rsa public key'),
        ItemMulti('dir-key-crosscert', 'id signature'),
        ItemMulti('dir-key-certification', 'signature'),
    ]
예제 #2
0
class NetworkStatusDocument(TorDocument):
    DOCUMENT_NAME = 'network_status'

    # "network-status-version" SP version NL
    # [At start, exactly once.]
    # network-status-version 3
    START_ITEM = ItemInt('network-status-version')

    ITEMS = [
        # "vote-status" SP type NL
        # [Exactly once.]
        # vote-status consensus
        Item('vote-status'),
        # "consensus-method" SP Integer NL
        # [At most once for consensuses; does not occur in votes.]
        # [No extra arguments]
        # consensus-method 28
        ItemInt('consensus-method'),
        # "valid-after" SP YYYY-MM-DD SP HH:MM:SS NL
        # [Exactly once.]
        # valid-after 2019-07-20 21:00:00
        ItemDate('valid-after'),
        # "fresh-until" SP YYYY-MM-DD SP HH:MM:SS NL
        # [Exactly once.]
        # fresh-until 2019-07-20 22:00:00
        ItemDate('fresh-until'),
        # "valid-until" SP YYYY-MM-DD SP HH:MM:SS NL
        # [Exactly once.]
        # valid-until 2019-07-21 00:00:00
        ItemDate('valid-until'),
        # "voting-delay" SP VoteSeconds SP DistSeconds NL
        # [Exactly once.]
        # voting-delay 300 300
        Item('voting-delay'),
        # "client-versions" SP VersionList NL
        # [At most once.]
        # client-versions 0.2.9.16,0.2.9.17,0.3.5.7,0.3.5.8,0.4.0.5,0.4.0.6,0.4.1.2-alpha,0.4.1.3-alpha,0.4.1.4-rc
        Item('client-versions'),
        # "server-versions" SP VersionList NL
        # [At most once.]
        # server-versions 0.2.9.15,0.2.9.16,0.2.9.17,0.3.5.8,0.4.0.5,0.4.0.6,0.4.1.2-alpha,0.4.1.3-alpha,0.4.1.4-rc
        Item('server-versions'),
        # "package" SP PackageName SP Version SP URL SP DIGESTS NL
        # [Any number of times.]
        # Included in consensuses only for method 19 and later.
        # "known-flags" SP FlagList NL
        # [Exactly once.]
        # known-flags Authority BadExit Exit Fast Guard HSDir NoEdConsensus Running Stable StaleDesc V2Dir Valid
        Item('known-flags'),
        # "recommended-client-protocols" SP Entries NL
        # [At most once.]
        # recommended-client-protocols Cons=1-2 Desc=1-2 DirCache=1 HSDir=1 HSIntro=3 HSRend=1 Link=4 ...
        Item('recommended-client-protocols'),
        # "recommended-relay-protocols" SP Entries NL
        # [At most once.]
        # recommended-relay-protocols Cons=1-2 Desc=1-2 DirCache=1 HSDir=1 HSIntro=3 HSRend=1 Link=4 ...
        Item('recommended-relay-protocols'),
        # "required-client-protocols" SP Entries NL
        # [At most once.]
        # required-client-protocols Cons=1-2 Desc=1-2 DirCache=1 HSDir=1 HSIntro=3 HSRend=1 Link=4 ...`
        Item('required-client-protocols'),
        # "required-relay-protocols" SP Entries NL
        # [At most once.]
        # required-relay-protocols Cons=1 Desc=1 DirCache=1 HSDir=1 HSIntro=3 HSRend=1 Link=3-4 ...
        Item('required-relay-protocols'),
        # "params" SP [Parameters] NL
        # [At most once]
        # params CircuitPriorityHalflifeMsec=30000 DoSCircuitCreationEnabled=1 DoSConnectionEnabled=1 ...
        Item('params'),
        # "shared-rand-previous-value" SP NumReveals SP Value NL
        # [At most once]
        # shared-rand-previous-value 9 ybFb42KVOFmJR/EMtjPJNJiTBDyiI0eefmebenN9EY0=
        Item('shared-rand-previous-value'),
        # "shared-rand-current-value" SP NumReveals SP Value NL
        # [At most once]
        # shared-rand-current-value 9 p4+CMGa6M7EhDqGNpofcJ2MeQ7f7qdF8QslK+AOnrQg=
        Item('shared-rand-current-value'),
        ItemObject(DirSourceObject, out_name='voters'),
        ItemObject(RouterObject, out_name='routers'),
        # "directory-signature" [SP Algorithm] SP identity SP signing-key-digest
        #         NL Signature
        ItemSignature('directory-signature'),
    ]

    def __init__(self, raw_string):
        super().__init__(
            raw_string,
            digests_names=['sha1', 'sha3_256'],
            digest_start='network-status-version',
            digest_end='directory-signature ',
        )

    def link_consensus(self, consensus):
        for router in self.routers:
            router._consensus = consensus

    @property
    def is_fresh(self):
        return self.valid_until > datetime.utcnow()

    @property
    def digest_sha1(self):
        return self.get_digest('sha1')

    @property
    def digest_sha3_256(self):
        return self.get_digest('sha3_256')

    def find_signature(self, identity):
        for sign in self.signatures:
            if sign['identity'] == identity:
                return sign

    def apply_diff(self, diff):
        logger.info('Apply network-status-diff for %s to %s',
                    self.digest_sha3_256.hex(), diff.to_digest.lower())
        assert self.digest_sha3_256.hex() == diff.from_digest.lower()

        lines = self.raw_string.split('\n')
        cur_line = 1
        for action in diff.actions:
            cur_end = len(lines)
            cur_line = action.apply(lines, cur_line, cur_end)

        raw_string_new = '\n'.join(lines) + '\n'
        assert sha3_256(
            raw_string_new.encode()).hex() == diff.to_digest.lower()
        return NetworkStatusDocument(raw_string_new)