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Added bluetooth plugin (see #89)

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This commit is contained in:
Fabio Manganiello 2019-12-11 18:05:17 +01:00
parent 2c8993e67d
commit 8c41110145
7 changed files with 554 additions and 28 deletions
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6
examples/conf/config.yaml
View file

@ -21,6 +21,12 @@ include:
- include/media.yaml
- include/sensors.yaml
# platypush logs on stdout by default. You can use the logging section to specify
# an alternative file or change the logging level.
logging:
filename: ~/.local/log/platypush/platypush.log
level: INFO
# The device_id is used by many components of platypush and it should uniquely
# identify a device in your network. If nothing is specified then the hostname
# will be used.

1
platypush/backend/http/app/routes/index.py
View file

@ -9,7 +9,6 @@ from platypush.backend.http.app.utils import authenticate, get_websocket_port
from platypush.backend.http.utils import HttpUtils
from platypush.config import Config
index = Blueprint('index', __name__, template_folder=template_folder)
# Declare routes list

27
platypush/message/response/__init__.py
View file

@ -3,10 +3,11 @@ import time
from platypush.message import Message
class Response(Message):
""" Response message class """
def __init__(self, target=None, origin=None, id=None, output=None, errors=[],
def __init__(self, target=None, origin=None, id=None, output=None, errors=None,
timestamp=None, disable_logging=False):
"""
Params:
@ -21,13 +22,13 @@ class Response(Message):
super().__init__(timestamp=timestamp)
self.target = target
self.output = self._parse_msg(output)
self.errors = self._parse_msg(errors)
self.errors = self._parse_msg(errors or [])
self.origin = origin
self.id = id
self.disable_logging = disable_logging
def is_error(self):
""" Returns True if the respopnse has errors """
""" Returns True if the response has errors """
return len(self.errors) != 0
@classmethod
@ -35,12 +36,13 @@ class Response(Message):
if isinstance(msg, bytes) or isinstance(msg, bytearray):
msg = msg.decode('utf-8')
if isinstance(msg, str):
try: msg = json.loads(msg.strip())
except ValueError as e: pass
try:
msg = json.loads(msg.strip())
except ValueError:
pass
return msg
@classmethod
def build(cls, msg):
msg = super().parse(msg)
@ -48,14 +50,16 @@ class Response(Message):
'target': msg['target'],
'output': msg['response']['output'],
'errors': msg['response']['errors'],
'timestamp': msg['_timestamp'] if '_timestamp' in msg else time.time(),
'disable_logging': msg.get('_disable_logging', False),
}
args['timestamp'] = msg['_timestamp'] if '_timestamp' in msg else time.time()
args['disable_logging'] = msg.get('_disable_logging', False)
if 'id' in msg: args['id'] = msg['id']
if 'origin' in msg: args['origin'] = msg['origin']
return cls(**args)
if 'id' in msg:
args['id'] = msg['id']
if 'origin' in msg:
args['origin'] = msg['origin']
return cls(**args)
def __str__(self):
"""
@ -80,5 +84,4 @@ class Response(Message):
return json.dumps(response_dict)
# vim:sw=4:ts=4:et:

101
platypush/message/response/bluetooth.py Normal file
View file

@ -0,0 +1,101 @@
from platypush.message.response import Response
class BluetoothResponse(Response):
pass
class BluetoothScanResponse(BluetoothResponse):
def __init__(self, devices, *args, **kwargs):
if isinstance(devices, list):
self.devices = [
{
'addr': dev[0],
'name': dev[1] if len(dev) > 1 else None,
'class': hex(dev[2]) if len(dev) > 2 else None,
}
for dev in devices
]
elif isinstance(devices, dict):
self.devices = [
{
'addr': addr,
'name': name or None,
'class': 'BLE',
}
for addr, name in devices.items()
]
else:
raise ValueError('devices must be either a list of tuples or a dict')
super().__init__(output=self.devices, *args, **kwargs)
class BluetoothLookupNameResponse(BluetoothResponse):
def __init__(self, addr: str, name: str, *args, **kwargs):
self.addr = addr
self.name = name
super().__init__(output={
'addr': self.addr,
'name': self.name
}, *args, **kwargs)
class BluetoothLookupServiceResponse(BluetoothResponse):
"""
Example services response output::
[
{
"service-classes": [
"1801"
],
"profiles": [],
"name": "Service name #1",
"description": null,
"provider": null,
"service-id": null,
"protocol": "L2CAP",
"port": 31,
"host": "00:11:22:33:44:55"
},
{
"service-classes": [
"1800"
],
"profiles": [],
"name": "Service name #2",
"description": null,
"provider": null,
"service-id": null,
"protocol": "L2CAP",
"port": 31,
"host": "00:11:22:33:44:56"
},
{
"service-classes": [
"1112",
"1203"
],
"profiles": [
[
"1108",
258
]
],
"name": "Headset Gateway",
"description": null,
"provider": null,
"service-id": null,
"protocol": "RFCOMM",
"port": 2,
"host": "00:11:22:33:44:57"
}
]
"""
def __init__(self, services: list, *args, **kwargs):
self.services = services
super().__init__(output=self.services, *args, **kwargs)
# vim:sw=4:ts=4:et:

415
platypush/plugins/bluetooth/__init__.py Normal file
View file

@ -0,0 +1,415 @@
import base64
import os
import re
import select
from platypush.plugins import Plugin, action
from platypush.message.response.bluetooth import BluetoothScanResponse, \
BluetoothLookupNameResponse, BluetoothLookupServiceResponse, BluetoothResponse
class BluetoothPlugin(Plugin):
"""
Bluetooth plugin
Requires:
* **pybluez** (``pip install pybluez``)
* **pyobex** (``pip install pyobex``) [optional] for file transfer support
"""
import bluetooth
class _DeviceDiscoverer(bluetooth.DeviceDiscoverer):
def __init__(self, name, *args, **kwargs):
super().__init__(*args, **kwargs)
self.name = name
self.device = {}
self.done = True
def pre_inquiry(self):
self.done = False
def device_discovered(self, dev_addr, dev_class, rssi, dev_name):
dev_name = dev_name.decode()
if dev_name == self.name:
self.device = {
'addr': dev_addr,
'name': dev_name,
'class': dev_class,
}
self.done = True
def inquiry_complete(self):
self.done = True
def __init__(self, device_id: int = -1, **kwargs):
"""
:param device_id: Default adapter device_id to be used (default: -1, auto)
"""
super().__init__(**kwargs)
self.device_id = device_id
self._devices = []
self._devices_by_addr = {}
self._devices_by_name = {}
self._port_and_protocol_by_addr_and_srv_uuid = {}
self._port_and_protocol_by_addr_and_srv_name = {}
self._socks = {}
def _get_device_addr(self, device):
if re.match('([0-9A-F]{2}:){5}[0-9A-F]{2}', device, re.IGNORECASE):
return device
if device in self._devices_by_name:
return self._devices_by_name[device]['addr']
return self.lookup_address(device).output['addr']
@action
def scan(self, device_id: int = None, duration: int = 10) -> BluetoothScanResponse:
"""
Scan for nearby bluetooth devices
:param device_id: Bluetooth adapter ID to use (default configured if None)
:param duration: Scan duration in seconds
"""
from bluetooth import discover_devices
if device_id is None:
device_id = self.device_id
self.logger.info('Discovering devices on adapter {}, duration: {} seconds'.format(
device_id, duration))
devices = discover_devices(duration=duration, lookup_names=True, lookup_class=True, device_id=device_id,
flush_cache=True)
response = BluetoothScanResponse(devices)
self._devices = response.devices
self._devices_by_addr = {dev['addr']: dev for dev in self._devices}
self._devices_by_name = {dev['name']: dev for dev in self._devices if dev.get('name')}
return response
@action
def lookup_name(self, addr: str, timeout: int = 10) -> BluetoothLookupNameResponse:
"""
Look up the name of a nearby bluetooth device given the address
:param addr: Device address
:param timeout: Lookup timeout (default: 10 seconds)
"""
from bluetooth import lookup_name
self.logger.info('Looking up name for device {}'.format(addr))
name = lookup_name(addr, timeout=timeout)
dev = {
'addr': addr,
'name': name,
'class': self._devices_by_addr.get(addr, {}).get('class'),
}
self._devices_by_addr[addr] = dev
if name:
self._devices_by_name[name] = dev
return BluetoothLookupNameResponse(addr=addr, name=name)
@action
def lookup_address(self, name: str, timeout: int = 10) -> BluetoothLookupNameResponse:
"""
Look up the address of a nearby bluetooth device given the name
:param name: Device name
:param timeout: Lookup timeout (default: 10 seconds)
"""
self.logger.info('Looking up address for device {}'.format(name))
discoverer = self._DeviceDiscoverer(name)
discoverer.find_devices(lookup_names=True, duration=timeout)
readfiles = [discoverer]
while True:
rfds = select.select(readfiles, [], [])[0]
if discoverer in rfds:
discoverer.process_event()
if discoverer.done:
break
dev = discoverer.device
if not dev:
raise RuntimeError('No such device: {}'.format(name))
addr = dev.get('addr')
self._devices_by_addr[addr] = dev
self._devices_by_name[name] = dev
return BluetoothLookupNameResponse(addr=addr, name=name)
@action
def find_service(self, name: str = None, addr: str = None, uuid: str = None) -> BluetoothLookupServiceResponse:
"""
Look up for a service published by a nearby bluetooth device. If all the parameters are null then all the
published services on the nearby devices will be returned. See
`:class:platypush.message.response.bluetoothBluetoothLookupServiceResponse` for response structure reference.
:param name: Service name
:param addr: Service/device address
:param uuid: Service UUID
"""
import bluetooth
from bluetooth import find_service
services = find_service(name=name, address=addr, uuid=uuid)
self._port_and_protocol_by_addr_and_srv_uuid.update({
(srv['host'], srv['service-id']): (srv['port'], getattr(bluetooth, srv['protocol']))
for srv in services if srv.get('service-id')
})
self._port_and_protocol_by_addr_and_srv_name.update({
(srv['host'], srv['name']): (srv['port'], getattr(bluetooth, srv['protocol']))
for srv in services if srv.get('name')
})
return BluetoothLookupServiceResponse(services)
def _get_sock(self, protocol=None, device: str = None, port: int = None, service_uuid: str = None,
service_name: str = None, connect_if_closed=False):
sock = None
addr = self._get_device_addr(device)
if not (addr and port and protocol):
addr, port, protocol = self._get_addr_port_protocol(protocol=protocol, device=device, port=port,
service_uuid=service_uuid, service_name=service_name)
if (addr, port) in self._socks:
sock = self._socks[(addr, port)]
elif connect_if_closed:
self.connect(protocol=protocol, device=device, port=port, service_uuid=service_uuid,
service_name=service_name)
sock = self._socks[(addr, port)]
return sock
def _get_addr_port_protocol(self, protocol=None, device: str = None, port: int = None, service_uuid: str = None,
service_name: str = None) -> tuple:
import bluetooth
addr = self._get_device_addr(device) if device else None
if service_uuid or service_name:
if addr:
if service_uuid:
(port, protocol) = self._port_and_protocol_by_addr_and_srv_uuid[(addr, service_uuid)] \
if (addr, service_uuid) in self._port_and_protocol_by_addr_and_srv_uuid else \
(None, None)
else:
(port, protocol) = self._port_and_protocol_by_addr_and_srv_name[(addr, service_name)] \
if (addr, service_name) in self._port_and_protocol_by_addr_and_srv_name else \
(None, None)
if not (addr and port):
self.logger.info('Discovering devices, service_name={name}, uuid={uuid}, address={addr}'.format(
name=service_name, uuid=service_uuid, addr=addr))
services = [
srv for srv in self.find_service().services
if (service_name is None or srv.get('name') == service_name) and
(addr is None or srv.get('host') == addr) and
(service_uuid is None or srv.get('service-id') == service_uuid)
]
if not services:
raise RuntimeError('No such service: name={name} uuid={uuid} address={addr}'.format(
name=service_name, uuid=service_uuid, addr=addr))
service = services[0]
addr = service['host']
port = service['port']
protocol = getattr(bluetooth, service['protocol'])
elif protocol:
if isinstance(protocol, str):
protocol = getattr(bluetooth, protocol)
else:
raise RuntimeError('No service name/UUID nor bluetooth protocol (RFCOMM/L2CAP) specified')
if not (addr and port):
raise RuntimeError('No valid device name/address, port, service name or UUID specified')
return addr, port, protocol
@action
def connect(self, protocol=None, device: str = None, port: int = None, service_uuid: str = None,
service_name: str = None):
"""
Connect to a bluetooth device.
You can query the advertised services through ``find_service``.
:param protocol: Supported values: either 'RFCOMM'/'L2CAP' (str) or bluetooth.RFCOMM/bluetooth.L2CAP
int constants (int)
:param device: Device address or name
:param port: Port number
:param service_uuid: Service UUID
:param service_name: Service name
"""
from bluetooth import BluetoothSocket
addr, port, protocol = self._get_addr_port_protocol(protocol=protocol, device=device, port=port,
service_uuid=service_uuid, service_name=service_name)
sock = self._get_sock(protocol=protocol, device=addr, port=port)
if sock:
self.close(device=addr, port=port)
sock = BluetoothSocket(protocol)
self.logger.info('Opening connection to device {} on port {}'.format(addr, port))
sock.connect((addr, port))
self.logger.info('Connected to device {} on port {}'.format(addr, port))
self._socks[(addr, port)] = sock
@action
def close(self, device: str = None, port: int = None, service_uuid: str = None, service_name: str = None):
"""
Close an active bluetooth connection
:param device: Device address or name
:param port: Port number
:param service_uuid: Service UUID
:param service_name: Service name
"""
sock = self._get_sock(device=device, port=port, service_uuid=service_uuid, service_name=service_name)
if not sock:
self.logger.info('Close on device {}({}) that is not connected'.format(device, port))
return
try:
sock.close()
except Exception as e:
self.logger.warning('Exception while closing previous connection to {}({}): {}'.format(
device, port, str(e)))
@action
def send(self, data, device: str = None, port: int = None, service_uuid: str = None, service_name: str = None,
binary: bool = False):
"""
Send data to an active bluetooth connection
:param data: Data to be sent
:param device: Device address or name
:param service_uuid: Service UUID
:param service_name: Service name
:param port: Port number
:param binary: Set to true if msg is a base64-encoded binary string
"""
from bluetooth import BluetoothError
sock = self._get_sock(device=device, port=port, service_uuid=service_uuid, service_name=service_name,
connect_if_closed=True)
if binary:
data = base64.decodebytes(data.encode() if isinstance(data, str) else data)
try:
sock.send(data)
except BluetoothError as e:
self.close(device=device, port=port, service_uuid=service_uuid, service_name=service_name)
raise e
@action
def recv(self, device: str, port: int, service_uuid: str = None, service_name: str = None, size: int = 1024,
binary: bool = False) -> BluetoothResponse:
"""
Send data to an active bluetooth connection
:param device: Device address or name
:param port: Port number
:param service_uuid: Service UUID
:param service_name: Service name
:param size: Maximum number of bytes to be read
:param binary: Set to true to return a base64-encoded binary string
"""
from bluetooth import BluetoothError
sock = self._get_sock(device=device, port=port, service_uuid=service_uuid, service_name=service_name,
connect_if_closed=True)
if not sock:
self.connect(device=device, port=port, service_uuid=service_uuid, service_name=service_name)
sock = self._get_sock(device=device, port=port, service_uuid=service_uuid, service_name=service_name)
try:
data = sock.recv(size)
except BluetoothError as e:
self.close(device=device, port=port, service_uuid=service_uuid, service_name=service_name)
raise e
if binary:
data = base64.encodebytes(data)
return BluetoothResponse(output=data.decode())
@action
def set_l2cap_mtu(self, mtu: int, device: str = None, port: int = None, service_name: str = None,
service_uuid: str = None):
"""
Set the L2CAP MTU (Maximum Transmission Unit) value for a connected bluetooth device.
Both the devices usually use the same MTU value over a connection.
:param device: Device address or name
:param port: Port number
:param service_uuid: Service UUID
:param service_name: Service name
:param mtu: New MTU value
"""
from bluetooth import BluetoothError, set_l2cap_mtu, L2CAP
sock = self._get_sock(protocol=L2CAP, device=device, port=port, service_uuid=service_uuid,
service_name=service_name, connect_if_closed=True)
if not sock:
raise RuntimeError('set_l2cap_mtu: device not connected')
try:
set_l2cap_mtu(sock, mtu)
except BluetoothError as e:
self.close(device=device, port=port, service_name=service_name, service_uuid=service_uuid)
raise e
@action
def send_file(self, filename: str, device: str, port: int = None, data=None, service_name='OBEX Object Push',
binary: bool = False):
"""
Send a local file to a device that exposes an OBEX Object Push service
:param filename: Path of the file to be sent
:param data: Alternatively to a file on disk you can send raw (string or binary) content
:param device: Device address or name
:param port: Port number
:param service_name: Service name
:param binary: Set to true if data is a base64-encoded binary string
"""
from PyOBEX.client import Client
if not data:
filename = os.path.abspath(os.path.expanduser(filename))
with open(filename, 'r') as f:
data = f.read()
filename = os.path.basename(filename)
else:
if binary:
data = base64.decodebytes(data.encode() if isinstance(data, str) else data)
addr, port, protocol = self._get_addr_port_protocol(device=device, port=port,
service_name=service_name)
client = Client(addr, port)
self.logger.info('Connecting to device {}'.format(addr))
client.connect()
self.logger.info('Sending file {} to device {}'.format(filename, addr))
client.put(filename, data)
self.logger.info('File {} sent to device {}'.format(filename, addr))
client.disconnect()
# vim:sw=4:ts=4:et:

3
requirements.txt
View file

@ -103,9 +103,10 @@ paho-mqtt
# Serial port support
# pyserial
# Switchbot devices support
# Bluetooth devices support
# pybluez
# gattlib
# git+https://github.com/BlackLight/PyOBEX
# Support for TP-Link HS100 and similar smart switches/plugins
# pyHS100

7
setup.py
View file

@ -149,7 +149,7 @@ setup(
# Support for Kafka backend and plugin
'kafka': ['kafka-python'],
# Support for Pushbullet backend and plugin
'pushbullet': ['pushbullet.py'],
'pushbullet': ['pushbullet.py @ https://github.com/rbrcsk/pushbullet.py'],
# Support for HTTP backend
'http': ['flask', 'websockets', 'python-dateutil', 'tz', 'frozendict', 'bcrypt'],
# Support for uWSGI HTTP backend
@ -237,8 +237,9 @@ setup(
'flic': ['flic @ https://github.com/50ButtonsEach/fliclib-linux-hci/tarball/master'],
# Support for Alexa/Echo plugin
'alexa': ['avs @ https://github.com:BlackLight/avs/tarball/master'],
# Support for bluetooth and Switchbot plugin
'bluetooth': ['pybluez', 'gattlib'],
# Support for bluetooth devices
'bluetooth': ['pybluez', 'gattlib',
'pyobex @ https://github.com/BlackLight/PyOBEX'],
# Support for TP-Link devices
'tplink': ['pyHS100'],
# Support for PWM3901 2-Dimensional Optical Flow Sensor