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Bump dnspython from 2.2.1 to 2.3.0 (#1975)
* Bump dnspython from 2.2.1 to 2.3.0 Bumps [dnspython](https://github.com/rthalley/dnspython) from 2.2.1 to 2.3.0. - [Release notes](https://github.com/rthalley/dnspython/releases) - [Changelog](https://github.com/rthalley/dnspython/blob/master/doc/whatsnew.rst) - [Commits](https://github.com/rthalley/dnspython/compare/v2.2.1...v2.3.0) --- updated-dependencies: - dependency-name: dnspython dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> * Update dnspython==2.3.0 --------- Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: JonnyWong16 <9099342+JonnyWong16@users.noreply.github.com> [skip ci]
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137 changed files with 7699 additions and 4277 deletions
180
lib/dns/quic/_common.py
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180
lib/dns/quic/_common.py
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# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
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import socket
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import struct
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import time
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from typing import Any
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import aioquic.quic.configuration # type: ignore
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import aioquic.quic.connection # type: ignore
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import dns.inet
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QUIC_MAX_DATAGRAM = 2048
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class UnexpectedEOF(Exception):
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pass
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class Buffer:
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def __init__(self):
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self._buffer = b""
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self._seen_end = False
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def put(self, data, is_end):
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if self._seen_end:
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return
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self._buffer += data
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if is_end:
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self._seen_end = True
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def have(self, amount):
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if len(self._buffer) >= amount:
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return True
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if self._seen_end:
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raise UnexpectedEOF
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return False
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def seen_end(self):
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return self._seen_end
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def get(self, amount):
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assert self.have(amount)
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data = self._buffer[:amount]
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self._buffer = self._buffer[amount:]
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return data
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class BaseQuicStream:
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def __init__(self, connection, stream_id):
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self._connection = connection
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self._stream_id = stream_id
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self._buffer = Buffer()
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self._expecting = 0
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def id(self):
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return self._stream_id
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def _expiration_from_timeout(self, timeout):
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if timeout is not None:
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expiration = time.time() + timeout
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else:
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expiration = None
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return expiration
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def _timeout_from_expiration(self, expiration):
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if expiration is not None:
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timeout = max(expiration - time.time(), 0.0)
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else:
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timeout = None
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return timeout
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# Subclass must implement receive() as sync / async and which returns a message
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# or raises UnexpectedEOF.
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def _encapsulate(self, datagram):
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l = len(datagram)
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return struct.pack("!H", l) + datagram
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def _common_add_input(self, data, is_end):
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self._buffer.put(data, is_end)
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return self._expecting > 0 and self._buffer.have(self._expecting)
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def _close(self):
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self._connection.close_stream(self._stream_id)
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self._buffer.put(b"", True) # send EOF in case we haven't seen it.
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class BaseQuicConnection:
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def __init__(
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self, connection, address, port, source=None, source_port=0, manager=None
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):
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self._done = False
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self._connection = connection
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self._address = address
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self._port = port
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self._closed = False
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self._manager = manager
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self._streams = {}
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self._af = dns.inet.af_for_address(address)
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self._peer = dns.inet.low_level_address_tuple((address, port))
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if source is None and source_port != 0:
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if self._af == socket.AF_INET:
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source = "0.0.0.0"
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elif self._af == socket.AF_INET6:
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source = "::"
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else:
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raise NotImplementedError
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if source:
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self._source = (source, source_port)
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else:
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self._source = None
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def close_stream(self, stream_id):
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del self._streams[stream_id]
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def _get_timer_values(self, closed_is_special=True):
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now = time.time()
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expiration = self._connection.get_timer()
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if expiration is None:
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expiration = now + 3600 # arbitrary "big" value
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interval = max(expiration - now, 0)
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if self._closed and closed_is_special:
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# lower sleep interval to avoid a race in the closing process
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# which can lead to higher latency closing due to sleeping when
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# we have events.
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interval = min(interval, 0.05)
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return (expiration, interval)
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def _handle_timer(self, expiration):
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now = time.time()
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if expiration <= now:
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self._connection.handle_timer(now)
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class AsyncQuicConnection(BaseQuicConnection):
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async def make_stream(self) -> Any:
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pass
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class BaseQuicManager:
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def __init__(self, conf, verify_mode, connection_factory):
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self._connections = {}
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self._connection_factory = connection_factory
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if conf is None:
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verify_path = None
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if isinstance(verify_mode, str):
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verify_path = verify_mode
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verify_mode = True
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conf = aioquic.quic.configuration.QuicConfiguration(
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alpn_protocols=["doq", "doq-i03"],
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verify_mode=verify_mode,
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)
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if verify_path is not None:
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conf.load_verify_locations(verify_path)
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self._conf = conf
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def _connect(self, address, port=853, source=None, source_port=0):
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connection = self._connections.get((address, port))
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if connection is not None:
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return (connection, False)
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qconn = aioquic.quic.connection.QuicConnection(configuration=self._conf)
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qconn.connect(address, time.time())
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connection = self._connection_factory(
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qconn, address, port, source, source_port, self
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)
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self._connections[(address, port)] = connection
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return (connection, True)
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def closed(self, address, port):
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try:
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del self._connections[(address, port)]
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except KeyError:
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pass
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class AsyncQuicManager(BaseQuicManager):
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def connect(self, address, port=853, source=None, source_port=0):
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raise NotImplementedError
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