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# Copyright 2021-2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# -----------------------------------------------------------------------------
# Imports
# -----------------------------------------------------------------------------
import logging
import websockets.asyncio.client
from bumble.transport.common import (
PumpedPacketSink,
PumpedPacketSource,
PumpedTransport,
Transport,
)
# -----------------------------------------------------------------------------
# Logging
# -----------------------------------------------------------------------------
logger = logging.getLogger(__name__)
# -----------------------------------------------------------------------------
async def open_ws_client_transport(spec: str) -> Transport:
'''
Open a WebSocket client transport.
The parameter string has this syntax:
<websocket-url>
Example: ws://localhost:7681/v1/websocket/bt
'''
websocket = await websockets.asyncio.client.connect(spec)
class WsTransport(PumpedTransport):
async def close(self):
await super().close()
await websocket.close()
transport = WsTransport(
PumpedPacketSource(websocket.recv),
PumpedPacketSink(websocket.send),
)
transport.start()
return transport
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