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- Added support for scan_pause/scan_resume on bluetooth integration.

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- Added `BluetoothDevice` as its own entity type.
This commit is contained in:
Fabio Manganiello 2023-02-13 23:12:25 +01:00
parent 1d0be5c929
commit a3aa186ddf
Signed by untrusted user: blacklight
GPG key ID: D90FBA7F76362774
7 changed files with 171 additions and 40 deletions
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1
platypush/backend/http/webapp/src/components/panels/Entities/BluetoothDevice.vue Symbolic link
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@ -0,0 +1 @@
Device.vue

8
platypush/backend/http/webapp/src/components/panels/Entities/meta.json
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@ -31,6 +31,14 @@
}
},
"bluetooth_device": {
"name": "Device",
"name_plural": "Devices",
"icon": {
"class": "fab fa-bluetooth-b"
}
},
"device": {
"name": "Device",
"name_plural": "Devices",

24
platypush/entities/bluetooth.py Normal file
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@ -0,0 +1,24 @@
from sqlalchemy import Column, Integer, Boolean, ForeignKey
from platypush.common.db import Base
from .devices import Device
if 'bluetooth_device' not in Base.metadata:
class BluetoothDevice(Device):
"""
Entity that represents a Bluetooth device.
"""
__tablename__ = 'bluetooth_device'
id = Column(
Integer, ForeignKey(Device.id, ondelete='CASCADE'), primary_key=True
)
connected = Column(Boolean, default=False)
__mapper_args__ = {
'polymorphic_identity': __tablename__,
}

53
platypush/message/event/bluetooth/ble.py
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@ -5,7 +5,31 @@ from platypush.message.event import Event
class BluetoothEvent(Event):
"""
Base class for Bluetooth Low-Energy device events.
Base class for Bluetooth events.
"""
class BluetoothScanPausedEvent(BluetoothEvent):
"""
Event triggered when the Bluetooth scan is paused.
"""
def __init__(self, *args, duration: Optional[float] = None, **kwargs):
super().__init__(*args, duration=duration, **kwargs)
class BluetoothScanResumedEvent(BluetoothEvent):
"""
Event triggered when the Bluetooth scan is resumed.
"""
def __init__(self, *args, duration: Optional[float] = None, **kwargs):
super().__init__(*args, duration=duration, **kwargs)
class BluetoothDeviceEvent(BluetoothEvent):
"""
Base class for Bluetooth device events.
"""
def __init__(
@ -17,7 +41,7 @@ class BluetoothEvent(Event):
trusted: bool,
blocked: bool,
name: Optional[str] = None,
service_uuids: Optional[Collection[str]] = None,
characteristics: Optional[Collection[str]] = None,
**kwargs
):
"""
@ -27,7 +51,8 @@ class BluetoothEvent(Event):
:param trusted: Whether the device is trusted.
:param blocked: Whether the device is blocked.
:param name: The name of the device.
:param service_uuids: The service UUIDs of the device.
:param characteristics: The UUIDs of the characteristics exposed by the
device.
"""
super().__init__(
*args,
@ -37,66 +62,66 @@ class BluetoothEvent(Event):
paired=paired,
blocked=blocked,
trusted=trusted,
service_uuids=service_uuids or [],
characteristics=characteristics or [],
**kwargs
)
class BluetoothDeviceFoundEvent(BluetoothEvent):
class BluetoothDeviceFoundEvent(BluetoothDeviceEvent):
"""
Event triggered when a Bluetooth device is discovered during a scan.
"""
class BluetoothDeviceLostEvent(BluetoothEvent):
class BluetoothDeviceLostEvent(BluetoothDeviceEvent):
"""
Event triggered when a previously discovered Bluetooth device is lost.
"""
class BluetoothDeviceConnectedEvent(BluetoothEvent):
class BluetoothDeviceConnectedEvent(BluetoothDeviceEvent):
"""
Event triggered when a Bluetooth device is connected.
"""
class BluetoothDeviceDisconnectedEvent(BluetoothEvent):
class BluetoothDeviceDisconnectedEvent(BluetoothDeviceEvent):
"""
Event triggered when a Bluetooth device is disconnected.
"""
class BluetoothDevicePairedEvent(BluetoothEvent):
class BluetoothDevicePairedEvent(BluetoothDeviceEvent):
"""
Event triggered when a Bluetooth device is paired.
"""
class BluetoothDeviceUnpairedEvent(BluetoothEvent):
class BluetoothDeviceUnpairedEvent(BluetoothDeviceEvent):
"""
Event triggered when a Bluetooth device is unpaired.
"""
class BluetoothDeviceBlockedEvent(BluetoothEvent):
class BluetoothDeviceBlockedEvent(BluetoothDeviceEvent):
"""
Event triggered when a Bluetooth device is blocked.
"""
class BluetoothDeviceUnblockedEvent(BluetoothEvent):
class BluetoothDeviceUnblockedEvent(BluetoothDeviceEvent):
"""
Event triggered when a Bluetooth device is unblocked.
"""
class BluetoothDeviceTrustedEvent(BluetoothEvent):
class BluetoothDeviceTrustedEvent(BluetoothDeviceEvent):
"""
Event triggered when a Bluetooth device is trusted.
"""
class BluetoothDeviceUntrustedEvent(BluetoothEvent):
class BluetoothDeviceUntrustedEvent(BluetoothDeviceEvent):
"""
Event triggered when a Bluetooth device is untrusted.
"""

3
platypush/plugins/__init__.py
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@ -167,7 +167,7 @@ class AsyncRunnablePlugin(RunnablePlugin, ABC):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self._loop: Optional[asyncio.AbstractEventLoop] = None
self._loop: Optional[asyncio.AbstractEventLoop] = asyncio.new_event_loop()
self._task: Optional[asyncio.Task] = None
@property
@ -204,7 +204,6 @@ class AsyncRunnablePlugin(RunnablePlugin, ABC):
"""
Initialize an event loop and run the listener as a task.
"""
self._loop = asyncio.new_event_loop()
asyncio.set_event_loop(self._loop)
self._task = self._loop.create_task(self._listen())

120
platypush/plugins/bluetooth/ble/__init__.py
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@ -1,6 +1,7 @@
import base64
from asyncio import Event, ensure_future
from contextlib import asynccontextmanager
from threading import RLock
from threading import RLock, Timer
from typing import AsyncGenerator, Collection, List, Optional, Dict, Type, Union
from uuid import UUID
@ -10,7 +11,7 @@ from typing_extensions import override
from platypush.context import get_bus, get_or_create_event_loop
from platypush.entities import Entity, EntityManager
from platypush.entities.devices import Device
from platypush.entities.bluetooth import BluetoothDevice
from platypush.message.event.bluetooth.ble import (
BluetoothDeviceBlockedEvent,
BluetoothDeviceConnectedEvent,
@ -22,7 +23,9 @@ from platypush.message.event.bluetooth.ble import (
BluetoothDeviceUnblockedEvent,
BluetoothDeviceUnpairedEvent,
BluetoothDeviceUntrustedEvent,
BluetoothEvent,
BluetoothDeviceEvent,
BluetoothScanPausedEvent,
BluetoothScanResumedEvent,
)
from platypush.plugins import AsyncRunnablePlugin, action
@ -52,7 +55,8 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
interface: Optional[str] = None,
connect_timeout: float = _default_connect_timeout,
device_names: Optional[Dict[str, str]] = None,
service_uuids: Optional[Collection[UUIDType]] = None,
characteristics: Optional[Collection[UUIDType]] = None,
scan_paused_on_start: bool = False,
**kwargs,
):
"""
@ -60,7 +64,8 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
on Linux). Default: first available interface.
:param connect_timeout: Timeout in seconds for the connection to a
Bluetooth device. Default: 5 seconds.
:param service_uuids: List of service UUIDs to discover. Default: all.
:param characteristics: List of service/characteristic UUIDs to
discover. Default: all.
:param device_names: Bluetooth address -> device name mapping. If not
specified, the device's advertised name will be used, or its
Bluetooth address. Example:
@ -73,13 +78,19 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
"00:11:22:33:44:57": "Button"
}
:param scan_paused_on_start: If ``True``, the plugin will not the
scanning thread until :meth:`.scan_resume` is called (default:
``False``).
"""
super().__init__(**kwargs)
self._interface = interface
self._connect_timeout = connect_timeout
self._service_uuids = service_uuids
self._characteristics = characteristics
self._scan_lock = RLock()
self._scan_enabled = Event()
self._scan_controller_timer: Optional[Timer] = None
self._connections: Dict[str, BleakClient] = {}
self._devices: Dict[str, BLEDevice] = {}
self._device_name_by_addr = device_names or {}
@ -87,6 +98,9 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
name: addr for addr, name in self._device_name_by_addr.items()
}
if not scan_paused_on_start:
self._scan_enabled.set()
async def _get_device(self, device: str) -> BLEDevice:
"""
Utility method to get a device by name or address.
@ -113,7 +127,7 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
)
def _post_event(
self, event_type: Type[BluetoothEvent], device: BLEDevice, **kwargs
self, event_type: Type[BluetoothDeviceEvent], device: BLEDevice, **kwargs
):
props = device.details.get('props', {})
get_bus().post(
@ -124,13 +138,13 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
paired=props.get('Paired', False),
blocked=props.get('Blocked', False),
trusted=props.get('Trusted', False),
service_uuids=device.metadata.get('uuids', []),
characteristics=device.metadata.get('uuids', []),
**kwargs,
)
)
def _on_device_event(self, device: BLEDevice, _):
event_types: List[Type[BluetoothEvent]] = []
event_types: List[Type[BluetoothDeviceEvent]] = []
existing_device = self._devices.get(device.address)
if existing_device:
@ -168,6 +182,9 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
event_types.append(BluetoothDeviceFoundEvent)
self._devices[device.address] = device
if device.name:
self._device_name_by_addr[device.address] = device.name
self._device_addr_by_name[device.name] = device.address
if event_types:
for event_type in event_types:
@ -217,7 +234,7 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
async def _scan(
self,
duration: Optional[float] = None,
service_uuids: Optional[Collection[UUIDType]] = None,
characteristics: Optional[Collection[UUIDType]] = None,
publish_entities: bool = False,
) -> Collection[Entity]:
with self._scan_lock:
@ -226,7 +243,7 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
adapter=self._interface,
timeout=timeout,
service_uuids=list(
map(str, service_uuids or self._service_uuids or [])
map(str, characteristics or self._characteristics or [])
),
detection_callback=self._on_device_event,
)
@ -234,29 +251,75 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
# TODO Infer type from device.metadata['manufacturer_data']
self._devices.update({dev.address: dev for dev in devices})
if publish_entities:
entities = self.publish_entities(devices)
else:
entities = self.transform_entities(devices)
return (
self.publish_entities(devices)
if publish_entities
else self.transform_entities(devices)
)
return entities
async def _scan_state_set(self, state: bool, duration: Optional[float] = None):
def timer_callback():
if state:
self.scan_pause()
else:
self.scan_resume()
self._scan_controller_timer = None
with self._scan_lock:
if not state and self._scan_enabled.is_set():
get_bus().post(BluetoothScanPausedEvent(duration=duration))
elif state and not self._scan_enabled.is_set():
get_bus().post(BluetoothScanResumedEvent(duration=duration))
if state:
self._scan_enabled.set()
else:
self._scan_enabled.clear()
if duration and not self._scan_controller_timer:
self._scan_controller_timer = Timer(duration, timer_callback)
self._scan_controller_timer.start()
@action
def scan_pause(self, duration: Optional[float] = None):
"""
Pause the scanning thread.
:param duration: For how long the scanning thread should be paused
(default: null = indefinitely).
"""
if self._loop:
ensure_future(self._scan_state_set(False, duration), loop=self._loop)
@action
def scan_resume(self, duration: Optional[float] = None):
"""
Resume the scanning thread, if inactive.
:param duration: For how long the scanning thread should be running
(default: null = indefinitely).
"""
if self._loop:
ensure_future(self._scan_state_set(True, duration), loop=self._loop)
@action
def scan(
self,
duration: Optional[float] = None,
service_uuids: Optional[Collection[UUIDType]] = None,
characteristics: Optional[Collection[UUIDType]] = None,
):
"""
Scan for Bluetooth devices nearby.
Scan for Bluetooth devices nearby and return the results as a list of
entities.
:param duration: Scan duration in seconds (default: same as the plugin's
`poll_interval` configuration parameter)
:param service_uuids: List of service UUIDs to discover. Default: all.
:param characteristics: List of characteristic UUIDs to discover. Default: all.
"""
loop = get_or_create_event_loop()
loop.run_until_complete(
self._scan(duration, service_uuids, publish_entities=True)
return loop.run_until_complete(
self._scan(duration, characteristics, publish_entities=True)
)
@action
@ -319,9 +382,11 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
return self.scan().output
@override
def transform_entities(self, entities: Collection[BLEDevice]) -> Collection[Device]:
def transform_entities(
self, entities: Collection[BLEDevice]
) -> Collection[BluetoothDevice]:
return [
Device(
BluetoothDevice(
id=dev.address,
name=self._get_device_name(dev),
)
@ -333,7 +398,9 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
device_addresses = set()
while True:
await self._scan_enabled.wait()
entities = await self._scan()
new_device_addresses = {e.id for e in entities}
missing_device_addresses = device_addresses - new_device_addresses
missing_devices = [
@ -348,5 +415,12 @@ class BluetoothBlePlugin(AsyncRunnablePlugin, EntityManager):
device_addresses = new_device_addresses
@override
def stop(self):
if self._scan_controller_timer:
self._scan_controller_timer.cancel()
super().stop()
# vim:sw=4:ts=4:et:

2
platypush/plugins/switchbot/bluetooth/__init__.py
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@ -54,7 +54,7 @@ class SwitchbotBluetoothPlugin(BluetoothBlePlugin, EnumSwitchEntityManager):
}
def __init__(self, *args, **kwargs):
super().__init__(*args, service_uuids=self._uuids.values(), **kwargs)
super().__init__(*args, characteristics=self._uuids.values(), **kwargs)
async def _run(
self,