"""Communicate with an Android TV or Amazon Fire TV device via ADB over a network.
ADB Debugging must be enabled.
"""
import logging
import re
from .. import constants
_LOGGER = logging.getLogger(__name__)
[docs]class BaseTV(object): # pylint: disable=too-few-public-methods
"""Base class for representing an Android TV / Fire TV device.
The ``state_detection_rules`` parameter is of the format:
.. code-block:: python
state_detection_rules = {'com.amazon.tv.launcher': ['idle'],
'com.netflix.ninja': ['media_session_state'],
'com.ellation.vrv': ['audio_state'],
'com.hulu.plus': [{'playing': {'wake_lock_size' : 4}},
{'paused': {'wake_lock_size': 2}}],
'com.plexapp.android': [{'paused': {'media_session_state': 3, 'wake_lock_size': 1}},
{'playing': {'media_session_state': 3}},
'idle']}
The keys are app IDs, and the values are lists of rules that are evaluated in order.
:py:const:`~androidtv.constants.VALID_STATES`
.. code-block:: python
VALID_STATES = ('idle', 'off', 'playing', 'paused', 'standby')
**Valid rules:**
* ``'idle'``, ``'playing'``, ``'paused'``, ``'standby'``, or ``'off'`` = always report the specified state when this app is open
* ``'media_session_state'`` = try to use the :meth:`media_session_state` property to determine the state
* ``'audio_state'`` = try to use the :meth:`audio_state` property to determine the state
* ``{'<VALID_STATE>': {'<PROPERTY1>': VALUE1, '<PROPERTY2>': VALUE2, ...}}`` = check if each of the properties is equal to the specified value, and if so return the state
* The valid properties are ``'media_session_state'``, ``'audio_state'``, and ``'wake_lock_size'``
Parameters
----------
adb : ADBPythonSync, ADBServerSync, ADBPythonAsync, ADBServerAsync
The handler for ADB commands
host : str
The address of the device; may be an IP address or a host name
port : int
The device port to which we are connecting (default is 5555)
adbkey : str
The path to the ``adbkey`` file for ADB authentication
adb_server_ip : str
The IP address of the ADB server
adb_server_port : int
The port for the ADB server
state_detection_rules : dict, None
A dictionary of rules for determining the state (see above)
"""
def __init__(self, adb, host, port=5555, adbkey='', adb_server_ip='', adb_server_port=5037, state_detection_rules=None):
self._adb = adb
self.host = host
self.port = int(port)
self.adbkey = adbkey
self.adb_server_ip = adb_server_ip
self.adb_server_port = adb_server_port
self._state_detection_rules = state_detection_rules
self.device_properties = {}
self._is_google_tv = False
# make sure the rules are valid
if self._state_detection_rules:
for app_id, rules in self._state_detection_rules.items():
if not isinstance(app_id, str):
raise TypeError("{0} is of type {1}, not str".format(app_id, type(app_id).__name__))
state_detection_rules_validator(rules)
# the max volume level (determined when first getting the volume level)
self.max_volume = None
# ======================================================================= #
# #
# ADB methods #
# #
# ======================================================================= #
@property
def available(self):
"""Whether the ADB connection is intact.
Returns
-------
bool
Whether or not the ADB connection is intact
"""
return self._adb.available
# ======================================================================= #
# #
# Home Assistant device info #
# #
# ======================================================================= #
[docs] def _parse_device_properties(self, properties):
"""Return a dictionary of device properties.
Parameters
----------
properties : str, None
The output of the ADB command that retrieves the device properties
Returns
-------
dict
A dictionary with keys ``'wifimac'``, ``'ethmac'``, ``'serialno'``, ``'manufacturer'``, ``'model'``, and ``'sw_version'``
"""
_LOGGER.debug("%s:%d `get_device_properties` response: %s", self.host, self.port, properties)
if not properties:
return {}
lines = properties.strip().splitlines()
if len(lines) != 6:
return {}
manufacturer, model, serialno, version, mac_wlan0_output, mac_eth0_output = lines
# Is this a Google Chromecast Android TV?
if "Google" in manufacturer and "Chromecast" in model:
self._is_google_tv = True
if not serialno.strip():
_LOGGER.warning("Could not obtain serialno for %s:%d, got: '%s'", self.host, self.port, serialno)
serialno = None
mac_wlan0_matches = re.findall(constants.MAC_REGEX_PATTERN, mac_wlan0_output)
if mac_wlan0_matches:
wifimac = mac_wlan0_matches[0]
else:
wifimac = None
mac_eth0_matches = re.findall(constants.MAC_REGEX_PATTERN, mac_eth0_output)
if mac_eth0_matches:
ethmac = mac_eth0_matches[0]
else:
ethmac = None
return {'manufacturer': manufacturer,
'model': model,
'serialno': serialno,
'sw_version': version,
'wifimac': wifimac,
'ethmac': ethmac}
# ======================================================================= #
# #
# Custom state detection #
# #
# ======================================================================= #
[docs] def _custom_state_detection(self, current_app=None, media_session_state=None, wake_lock_size=None, audio_state=None):
"""Use the rules in ``self._state_detection_rules`` to determine the state.
Parameters
----------
current_app : str, None
The :meth:`current_app` property
media_session_state : int, None
The :meth:`media_session_state` property
wake_lock_size : int, None
The :meth:`wake_lock_size` property
audio_state : str, None
The :meth:`audio_state` property
Returns
-------
str, None
The state, if it could be determined using the rules in ``self._state_detection_rules``; otherwise, ``None``
"""
if not self._state_detection_rules or current_app is None or current_app not in self._state_detection_rules:
return None
rules = self._state_detection_rules[current_app]
for rule in rules:
# The state is always the same for this app
if rule in constants.VALID_STATES:
return rule
# Use the `media_session_state` property
if rule == 'media_session_state':
if media_session_state == 2:
return constants.STATE_PAUSED
if media_session_state == 3:
return constants.STATE_PLAYING
if media_session_state is not None:
return constants.STATE_IDLE
# Use the `audio_state` property
if rule == 'audio_state' and audio_state in constants.VALID_STATES:
return audio_state
# Check conditions and if they are true, return the specified state
if isinstance(rule, dict):
for state, conditions in rule.items():
if state in constants.VALID_STATES and self._conditions_are_true(conditions, media_session_state, wake_lock_size, audio_state):
return state
return None
[docs] @staticmethod
def _conditions_are_true(conditions, media_session_state=None, wake_lock_size=None, audio_state=None):
"""Check whether the conditions in ``conditions`` are true.
Parameters
----------
conditions : dict
A dictionary of conditions to be checked (see the ``state_detection_rules`` parameter in :class:`~androidtv.basetv.basetv.BaseTV`)
media_session_state : int, None
The :meth:`media_session_state` property
wake_lock_size : int, None
The :meth:`wake_lock_size` property
audio_state : str, None
The :meth:`audio_state` property
Returns
-------
bool
Whether or not all the conditions in ``conditions`` are true
"""
for key, val in conditions.items():
if key == 'media_session_state':
if media_session_state is None or media_session_state != val:
return False
elif key == 'wake_lock_size':
if wake_lock_size is None or wake_lock_size != val:
return False
elif key == 'audio_state':
if audio_state is None or audio_state != val:
return False
# key is invalid
else:
return False
return True
# ======================================================================= #
# #
# Parse properties #
# #
# ======================================================================= #
[docs] @staticmethod
def _audio_output_device(stream_music):
"""Get the current audio playback device from the ``STREAM_MUSIC`` block from ``adb shell dumpsys audio``.
Parameters
----------
stream_music : str, None
The ``STREAM_MUSIC`` block from ``adb shell dumpsys audio``
Returns
-------
str, None
The current audio playback device, or ``None`` if it could not be determined
"""
if not stream_music:
return None
matches = re.findall(constants.DEVICE_REGEX_PATTERN, stream_music, re.DOTALL | re.MULTILINE)
if matches:
return matches[0]
return None
[docs] @staticmethod
def _audio_state(audio_state_response):
"""Parse the :meth:`audio_state` property from the output of the command :py:const:`androidtv.constants.CMD_AUDIO_STATE`.
Parameters
----------
audio_state_response : str, None
The output of the command :py:const:`androidtv.constants.CMD_AUDIO_STATE`
Returns
-------
str, None
The audio state, or ``None`` if it could not be determined
"""
if not audio_state_response:
return None
if audio_state_response == '1':
return constants.STATE_PAUSED
if audio_state_response == '2':
return constants.STATE_PLAYING
return constants.STATE_IDLE
[docs] @staticmethod
def _current_app(current_app_response):
"""Get the current app from the output of the command :py:const:`androidtv.constants.CMD_CURRENT_APP`.
Parameters
----------
current_app_response : str, None
The output from the ADB command :py:const:`androidtv.constants.CMD_CURRENT_APP`
Returns
-------
str, None
The current app, or ``None`` if it could not be determined
"""
if not current_app_response or '=' in current_app_response or '{' in current_app_response:
return None
return current_app_response
[docs] @staticmethod
def _is_volume_muted(stream_music):
"""Determine whether or not the volume is muted from the ``STREAM_MUSIC`` block from ``adb shell dumpsys audio``.
Parameters
----------
stream_music : str, None
The ``STREAM_MUSIC`` block from ``adb shell dumpsys audio``
Returns
-------
bool, None
Whether or not the volume is muted, or ``None`` if it could not be determined
"""
if not stream_music:
return None
matches = re.findall(constants.MUTED_REGEX_PATTERN, stream_music, re.DOTALL | re.MULTILINE)
if matches:
return matches[0] == 'true'
return None
[docs] @staticmethod
def _parse_stream_music(stream_music_raw):
"""Parse the output of the command :py:const:`androidtv.constants.CMD_STREAM_MUSIC`.
Parameters
----------
stream_music_raw : str, None
The output of the command :py:const:`androidtv.constants.CMD_STREAM_MUSIC`
Returns
-------
str, None
The ``STREAM_MUSIC`` block from the output of :py:const:`androidtv.constants.CMD_STREAM_MUSIC`, or ``None`` if it could not be determined
"""
if not stream_music_raw:
return None
matches = re.findall(constants.STREAM_MUSIC_REGEX_PATTERN, stream_music_raw, re.DOTALL | re.MULTILINE)
if matches:
return matches[0]
return None
[docs] @staticmethod
def _running_apps(running_apps_response):
"""Get the running apps from the output of :py:const:`androidtv.constants.CMD_RUNNING_APPS`.
Parameters
----------
running_apps_response : str, None
The output of :py:const:`androidtv.constants.CMD_RUNNING_APPS`
Returns
-------
list, None
A list of the running apps, or ``None`` if it could not be determined
"""
if running_apps_response:
if isinstance(running_apps_response, list):
return [line.strip().rsplit(' ', 1)[-1] for line in running_apps_response if line.strip()]
return [line.strip().rsplit(' ', 1)[-1] for line in running_apps_response.splitlines() if line.strip()]
return None
[docs] def _volume(self, stream_music, audio_output_device):
"""Get the absolute volume level from the ``STREAM_MUSIC`` block from ``adb shell dumpsys audio``.
Parameters
----------
stream_music : str, None
The ``STREAM_MUSIC`` block from ``adb shell dumpsys audio``
audio_output_device : str, None
The current audio playback device
Returns
-------
int, None
The absolute volume level, or ``None`` if it could not be determined
"""
if not stream_music:
return None
if not self.max_volume:
max_volume_matches = re.findall(constants.MAX_VOLUME_REGEX_PATTERN, stream_music, re.DOTALL | re.MULTILINE)
if max_volume_matches:
self.max_volume = float(max_volume_matches[0])
else:
self.max_volume = 15.
if not audio_output_device:
return None
volume_matches = re.findall(audio_output_device + constants.VOLUME_REGEX_PATTERN, stream_music, re.DOTALL | re.MULTILINE)
if volume_matches:
return int(volume_matches[0])
return None
[docs] def _volume_level(self, volume):
"""Get the relative volume level from the absolute volume level.
Parameters
-------
volume: int, None
The absolute volume level
Returns
-------
float, None
The volume level (between 0 and 1), or ``None`` if it could not be determined
"""
if volume is not None and self.max_volume:
return volume / self.max_volume
return None
[docs] @staticmethod
def _wake_lock_size(wake_lock_size_response):
"""Get the size of the current wake lock from the output of :py:const:`androidtv.constants.CMD_WAKE_LOCK_SIZE`.
Parameters
----------
wake_lock_size_response : str, None
The output of :py:const:`androidtv.constants.CMD_WAKE_LOCK_SIZE`
Returns
-------
int, None
The size of the current wake lock, or ``None`` if it could not be determined
"""
if wake_lock_size_response:
wake_lock_size_matches = constants.REGEX_WAKE_LOCK_SIZE.search(wake_lock_size_response)
if wake_lock_size_matches:
return int(wake_lock_size_matches.group('size'))
return None
[docs] @staticmethod
def _parse_getevent_line(line):
"""Parse a line of the output received in ``learn_sendevent``.
Parameters
----------
line : str
A line of output from ``learn_sendevent``
Returns
-------
str
The properly formatted ``sendevent`` command
"""
device_name, event_info = line.split(":", 1)
integers = [int(x, 16) for x in event_info.strip().split()[:3]]
return "sendevent {} {} {} {}".format(device_name, *integers)
# ======================================================================= #
# #
# Validate the state detection rules #
# #
# ======================================================================= #
[docs]def state_detection_rules_validator(rules, exc=KeyError):
"""Validate the rules (i.e., the ``state_detection_rules`` value) for a given app ID (i.e., a key in ``state_detection_rules``).
For each ``rule`` in ``rules``, this function checks that:
* ``rule`` is a string or a dictionary
* If ``rule`` is a string:
* Check that ``rule`` is in :py:const:`~androidtv.constants.VALID_STATES` or :py:const:`~androidtv.constants.VALID_STATE_PROPERTIES`
* If ``rule`` is a dictionary:
* Check that each key is in :py:const:`~androidtv.constants.VALID_STATES`
* Check that each value is a dictionary
* Check that each key is in :py:const:`~androidtv.constants.VALID_PROPERTIES`
* Check that each value is of the right type, according to :py:const:`~androidtv.constants.VALID_PROPERTIES_TYPES`
See :class:`~androidtv.basetv.basetv.BaseTV` for more info about the ``state_detection_rules`` parameter.
Parameters
----------
rules : list
A list of the rules that will be used to determine the state
exc : Exception
The exception that will be raised if a rule is invalid
Returns
-------
rules : list
The provided list of rules
"""
for rule in rules:
# A rule must be either a string or a dictionary
if not isinstance(rule, (str, dict)):
raise exc("Expected a string or a map, got {}".format(type(rule).__name__))
# If a rule is a string, check that it is valid
if isinstance(rule, str):
if rule not in constants.VALID_STATE_PROPERTIES + constants.VALID_STATES:
raise exc("Invalid rule '{0}' is not in {1}".format(rule, constants.VALID_STATE_PROPERTIES + constants.VALID_STATES))
# If a rule is a dictionary, check that it is valid
else:
for state, conditions in rule.items():
# The keys of the dictionary must be valid states
if state not in constants.VALID_STATES:
raise exc("'{0}' is not a valid state for the 'state_detection_rules' parameter".format(state))
# The values of the dictionary must be dictionaries
if not isinstance(conditions, dict):
raise exc("Expected a map for entry '{0}' in 'state_detection_rules', got {1}".format(state, type(conditions).__name__))
for prop, value in conditions.items():
# The keys of the dictionary must be valid properties that can be checked
if prop not in constants.VALID_PROPERTIES:
raise exc("Invalid property '{0}' is not in {1}".format(prop, constants.VALID_PROPERTIES))
# Make sure the value is of the right type
if not isinstance(value, constants.VALID_PROPERTIES_TYPES[prop]):
raise exc("Conditional value for property '{0}' must be of type {1}, not {2}".format(prop, constants.VALID_PROPERTIES_TYPES[prop].__name__, type(value).__name__))
return rules