117 lines
3.2 KiB
Python
117 lines
3.2 KiB
Python
"""Camera that loads a picture from a local file."""
|
|
import logging
|
|
import mimetypes
|
|
import os
|
|
|
|
import voluptuous as vol
|
|
|
|
from homeassistant.components.camera import (
|
|
CAMERA_SERVICE_SCHEMA,
|
|
PLATFORM_SCHEMA,
|
|
Camera,
|
|
)
|
|
from homeassistant.const import ATTR_ENTITY_ID, CONF_NAME
|
|
from homeassistant.helpers import config_validation as cv
|
|
|
|
from .const import (
|
|
CONF_FILE_PATH,
|
|
DATA_LOCAL_FILE,
|
|
DEFAULT_NAME,
|
|
DOMAIN,
|
|
SERVICE_UPDATE_FILE_PATH,
|
|
)
|
|
|
|
_LOGGER = logging.getLogger(__name__)
|
|
|
|
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
|
|
{
|
|
vol.Required(CONF_FILE_PATH): cv.string,
|
|
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
|
|
}
|
|
)
|
|
|
|
CAMERA_SERVICE_UPDATE_FILE_PATH = CAMERA_SERVICE_SCHEMA.extend(
|
|
{vol.Required(CONF_FILE_PATH): cv.string}
|
|
)
|
|
|
|
|
|
def setup_platform(hass, config, add_entities, discovery_info=None):
|
|
"""Set up the Camera that works with local files."""
|
|
if DATA_LOCAL_FILE not in hass.data:
|
|
hass.data[DATA_LOCAL_FILE] = []
|
|
|
|
file_path = config[CONF_FILE_PATH]
|
|
camera = LocalFile(config[CONF_NAME], file_path)
|
|
hass.data[DATA_LOCAL_FILE].append(camera)
|
|
|
|
def update_file_path_service(call):
|
|
"""Update the file path."""
|
|
file_path = call.data.get(CONF_FILE_PATH)
|
|
entity_ids = call.data.get(ATTR_ENTITY_ID)
|
|
cameras = hass.data[DATA_LOCAL_FILE]
|
|
|
|
for camera in cameras:
|
|
if camera.entity_id in entity_ids:
|
|
camera.update_file_path(file_path)
|
|
return True
|
|
|
|
hass.services.register(
|
|
DOMAIN,
|
|
SERVICE_UPDATE_FILE_PATH,
|
|
update_file_path_service,
|
|
schema=CAMERA_SERVICE_UPDATE_FILE_PATH,
|
|
)
|
|
|
|
add_entities([camera])
|
|
|
|
|
|
class LocalFile(Camera):
|
|
"""Representation of a local file camera."""
|
|
|
|
def __init__(self, name, file_path):
|
|
"""Initialize Local File Camera component."""
|
|
super().__init__()
|
|
|
|
self._name = name
|
|
self.check_file_path_access(file_path)
|
|
self._file_path = file_path
|
|
# Set content type of local file
|
|
content, _ = mimetypes.guess_type(file_path)
|
|
if content is not None:
|
|
self.content_type = content
|
|
|
|
def camera_image(self):
|
|
"""Return image response."""
|
|
try:
|
|
with open(self._file_path, "rb") as file:
|
|
return file.read()
|
|
except FileNotFoundError:
|
|
_LOGGER.warning(
|
|
"Could not read camera %s image from file: %s",
|
|
self._name,
|
|
self._file_path,
|
|
)
|
|
|
|
def check_file_path_access(self, file_path):
|
|
"""Check that filepath given is readable."""
|
|
if not os.access(file_path, os.R_OK):
|
|
_LOGGER.warning(
|
|
"Could not read camera %s image from file: %s", self._name, file_path
|
|
)
|
|
|
|
def update_file_path(self, file_path):
|
|
"""Update the file_path."""
|
|
self.check_file_path_access(file_path)
|
|
self._file_path = file_path
|
|
self.schedule_update_ha_state()
|
|
|
|
@property
|
|
def name(self):
|
|
"""Return the name of this camera."""
|
|
return self._name
|
|
|
|
@property
|
|
def device_state_attributes(self):
|
|
"""Return the camera state attributes."""
|
|
return {"file_path": self._file_path}
|