forked from auracaster/bumble_mirror
132 lines
4.6 KiB
Python
132 lines
4.6 KiB
Python
# Copyright 2021-2022 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# -----------------------------------------------------------------------------
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# Imports
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# -----------------------------------------------------------------------------
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import asyncio
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import sys
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import os
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import logging
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import json
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import websockets
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from typing import Optional
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from bumble.device import Device
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from bumble.transport import open_transport_or_link
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from bumble.rfcomm import Server as RfcommServer
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from bumble import hfp
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from bumble.hfp import HfProtocol
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# -----------------------------------------------------------------------------
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class UiServer:
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protocol: Optional[HfProtocol] = None
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async def start(self):
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"""Start a Websocket server to receive events from a web page."""
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async def serve(websocket, _path):
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while True:
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try:
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message = await websocket.recv()
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print('Received: ', str(message))
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parsed = json.loads(message)
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message_type = parsed['type']
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if message_type == 'at_command':
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if self.protocol is not None:
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await self.protocol.execute_command(parsed['command'])
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except websockets.exceptions.ConnectionClosedOK:
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pass
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# pylint: disable=no-member
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await websockets.serve(serve, 'localhost', 8989)
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# -----------------------------------------------------------------------------
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def on_dlc(dlc, configuration: hfp.Configuration):
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print('*** DLC connected', dlc)
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protocol = HfProtocol(dlc, configuration)
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UiServer.protocol = protocol
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asyncio.create_task(protocol.run())
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# -----------------------------------------------------------------------------
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async def main():
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if len(sys.argv) < 3:
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print('Usage: run_classic_hfp.py <device-config> <transport-spec>')
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print('example: run_classic_hfp.py classic2.json usb:04b4:f901')
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return
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print('<<< connecting to HCI...')
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async with await open_transport_or_link(sys.argv[2]) as (hci_source, hci_sink):
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print('<<< connected')
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# Hands-Free profile configuration.
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# TODO: load configuration from file.
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configuration = hfp.Configuration(
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supported_hf_features=[
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hfp.HfFeature.THREE_WAY_CALLING,
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hfp.HfFeature.REMOTE_VOLUME_CONTROL,
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hfp.HfFeature.ENHANCED_CALL_STATUS,
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hfp.HfFeature.ENHANCED_CALL_CONTROL,
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hfp.HfFeature.CODEC_NEGOTIATION,
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hfp.HfFeature.HF_INDICATORS,
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hfp.HfFeature.ESCO_S4_SETTINGS_SUPPORTED,
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],
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supported_hf_indicators=[
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hfp.HfIndicator.BATTERY_LEVEL,
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],
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supported_audio_codecs=[
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hfp.AudioCodec.CVSD,
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hfp.AudioCodec.MSBC,
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],
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)
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# Create a device
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device = Device.from_config_file_with_hci(sys.argv[1], hci_source, hci_sink)
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device.classic_enabled = True
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# Create and register a server
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rfcomm_server = RfcommServer(device)
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# Listen for incoming DLC connections
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channel_number = rfcomm_server.listen(lambda dlc: on_dlc(dlc, configuration))
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print(f'### Listening for connection on channel {channel_number}')
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# Advertise the HFP RFComm channel in the SDP
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device.sdp_service_records = {
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0x00010001: hfp.sdp_records(0x00010001, channel_number, configuration)
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}
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# Let's go!
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await device.power_on()
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# Start being discoverable and connectable
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await device.set_discoverable(True)
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await device.set_connectable(True)
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# Start the UI websocket server to offer a few buttons and input boxes
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ui_server = UiServer()
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await ui_server.start()
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await hci_source.wait_for_termination()
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# -----------------------------------------------------------------------------
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logging.basicConfig(level=os.environ.get('BUMBLE_LOGLEVEL', 'DEBUG').upper())
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asyncio.run(main())
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