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# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
from typing import List, Tuple
import dns._features
import dns.asyncbackend
if dns._features.have("doq"):
import aioquic.quic.configuration # type: ignore
from dns._asyncbackend import NullContext
from dns.quic._asyncio import (
AsyncioQuicConnection,
AsyncioQuicManager,
AsyncioQuicStream,
)
from dns.quic._common import AsyncQuicConnection, AsyncQuicManager
from dns.quic._sync import SyncQuicConnection, SyncQuicManager, SyncQuicStream
have_quic = True
def null_factory(
*args, # pylint: disable=unused-argument
**kwargs, # pylint: disable=unused-argument
):
return NullContext(None)
def _asyncio_manager_factory(
context, *args, **kwargs # pylint: disable=unused-argument
):
return AsyncioQuicManager(*args, **kwargs)
# We have a context factory and a manager factory as for trio we need to have
# a nursery.
_async_factories = {"asyncio": (null_factory, _asyncio_manager_factory)}
if dns._features.have("trio"):
import trio
from dns.quic._trio import ( # pylint: disable=ungrouped-imports
TrioQuicConnection,
TrioQuicManager,
TrioQuicStream,
)
def _trio_context_factory():
return trio.open_nursery()
def _trio_manager_factory(context, *args, **kwargs):
return TrioQuicManager(context, *args, **kwargs)
_async_factories["trio"] = (_trio_context_factory, _trio_manager_factory)
def factories_for_backend(backend=None):
if backend is None:
backend = dns.asyncbackend.get_default_backend()
return _async_factories[backend.name()]
else: # pragma: no cover
have_quic = False
from typing import Any
class AsyncQuicStream: # type: ignore
pass
class AsyncQuicConnection: # type: ignore
async def make_stream(self) -> Any:
raise NotImplementedError
class SyncQuicStream: # type: ignore
pass
class SyncQuicConnection: # type: ignore
def make_stream(self) -> Any:
raise NotImplementedError
Headers = List[Tuple[bytes, bytes]]