core/homeassistant/components/generic/camera.py

220 lines
8.1 KiB
Python

"""Support for IP Cameras."""
from __future__ import annotations
import logging
import httpx
import voluptuous as vol
from homeassistant.components.camera import (
DEFAULT_CONTENT_TYPE,
PLATFORM_SCHEMA,
Camera,
CameraEntityFeature,
)
from homeassistant.components.stream import (
CONF_RTSP_TRANSPORT,
CONF_USE_WALLCLOCK_AS_TIMESTAMPS,
RTSP_TRANSPORTS,
)
from homeassistant.config_entries import SOURCE_IMPORT, ConfigEntry
from homeassistant.const import (
CONF_AUTHENTICATION,
CONF_NAME,
CONF_PASSWORD,
CONF_USERNAME,
CONF_VERIFY_SSL,
HTTP_BASIC_AUTHENTICATION,
HTTP_DIGEST_AUTHENTICATION,
)
from homeassistant.core import HomeAssistant
from homeassistant.exceptions import TemplateError
from homeassistant.helpers import config_validation as cv, template as template_helper
from homeassistant.helpers.entity_platform import AddEntitiesCallback
from homeassistant.helpers.httpx_client import get_async_client
from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
from . import DOMAIN
from .const import (
CONF_CONTENT_TYPE,
CONF_FRAMERATE,
CONF_LIMIT_REFETCH_TO_URL_CHANGE,
CONF_STILL_IMAGE_URL,
CONF_STREAM_SOURCE,
DEFAULT_NAME,
GET_IMAGE_TIMEOUT,
)
_LOGGER = logging.getLogger(__name__)
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
{
vol.Required(vol.Any(CONF_STILL_IMAGE_URL, CONF_STREAM_SOURCE)): cv.template,
vol.Optional(vol.Any(CONF_STILL_IMAGE_URL, CONF_STREAM_SOURCE)): cv.template,
vol.Optional(CONF_AUTHENTICATION, default=HTTP_BASIC_AUTHENTICATION): vol.In(
[HTTP_BASIC_AUTHENTICATION, HTTP_DIGEST_AUTHENTICATION]
),
vol.Optional(CONF_LIMIT_REFETCH_TO_URL_CHANGE, default=False): cv.boolean,
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
vol.Optional(CONF_PASSWORD): cv.string,
vol.Optional(CONF_USERNAME): cv.string,
vol.Optional(CONF_CONTENT_TYPE, default=DEFAULT_CONTENT_TYPE): cv.string,
vol.Optional(CONF_FRAMERATE, default=2): vol.Any(
cv.small_float, cv.positive_int
),
vol.Optional(CONF_VERIFY_SSL, default=True): cv.boolean,
vol.Optional(CONF_RTSP_TRANSPORT): vol.In(RTSP_TRANSPORTS),
}
)
async def async_setup_platform(
hass: HomeAssistant,
config: ConfigType,
async_add_entities: AddEntitiesCallback,
discovery_info: DiscoveryInfoType | None = None,
) -> None:
"""Set up a generic IP Camera."""
_LOGGER.warning(
"Loading generic IP camera via configuration.yaml is deprecated, "
"it will be automatically imported. Once you have confirmed correct "
"operation, please remove 'generic' (IP camera) section(s) from "
"configuration.yaml"
)
image = config.get(CONF_STILL_IMAGE_URL)
stream = config.get(CONF_STREAM_SOURCE)
config_new = {
CONF_NAME: config[CONF_NAME],
CONF_STILL_IMAGE_URL: image.template if image is not None else None,
CONF_STREAM_SOURCE: stream.template if stream is not None else None,
CONF_AUTHENTICATION: config.get(CONF_AUTHENTICATION),
CONF_USERNAME: config.get(CONF_USERNAME),
CONF_PASSWORD: config.get(CONF_PASSWORD),
CONF_LIMIT_REFETCH_TO_URL_CHANGE: config.get(CONF_LIMIT_REFETCH_TO_URL_CHANGE),
CONF_CONTENT_TYPE: config.get(CONF_CONTENT_TYPE),
CONF_FRAMERATE: config.get(CONF_FRAMERATE),
CONF_VERIFY_SSL: config.get(CONF_VERIFY_SSL),
}
hass.async_create_task(
hass.config_entries.flow.async_init(
DOMAIN, context={"source": SOURCE_IMPORT}, data=config_new
)
)
async def async_setup_entry(
hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
) -> None:
"""Set up a generic IP Camera."""
async_add_entities(
[GenericCamera(hass, entry.options, entry.entry_id, entry.title)]
)
def generate_auth(device_info) -> httpx.Auth | None:
"""Generate httpx.Auth object from credentials."""
username = device_info.get(CONF_USERNAME)
password = device_info.get(CONF_PASSWORD)
authentication = device_info.get(CONF_AUTHENTICATION)
if username:
if authentication == HTTP_DIGEST_AUTHENTICATION:
return httpx.DigestAuth(username=username, password=password)
return httpx.BasicAuth(username=username, password=password)
return None
class GenericCamera(Camera):
"""A generic implementation of an IP camera."""
def __init__(self, hass, device_info, identifier, title):
"""Initialize a generic camera."""
super().__init__()
self.hass = hass
self._attr_unique_id = identifier
self._authentication = device_info.get(CONF_AUTHENTICATION)
self._name = device_info.get(CONF_NAME, title)
self._still_image_url = device_info.get(CONF_STILL_IMAGE_URL)
if (
not isinstance(self._still_image_url, template_helper.Template)
and self._still_image_url
):
self._still_image_url = cv.template(self._still_image_url)
if self._still_image_url not in [None, ""]:
self._still_image_url.hass = hass
self._stream_source = device_info.get(CONF_STREAM_SOURCE)
if self._stream_source not in (None, ""):
if not isinstance(self._stream_source, template_helper.Template):
self._stream_source = cv.template(self._stream_source)
self._stream_source.hass = hass
self._limit_refetch = device_info[CONF_LIMIT_REFETCH_TO_URL_CHANGE]
self._attr_frame_interval = 1 / device_info[CONF_FRAMERATE]
self._attr_supported_features = (
CameraEntityFeature.STREAM if self._stream_source else 0
)
self.content_type = device_info[CONF_CONTENT_TYPE]
self.verify_ssl = device_info[CONF_VERIFY_SSL]
if device_info.get(CONF_RTSP_TRANSPORT):
self.stream_options[CONF_RTSP_TRANSPORT] = device_info[CONF_RTSP_TRANSPORT]
self._auth = generate_auth(device_info)
if device_info.get(CONF_USE_WALLCLOCK_AS_TIMESTAMPS):
self.stream_options[CONF_USE_WALLCLOCK_AS_TIMESTAMPS] = True
self._last_url = None
self._last_image = None
async def async_camera_image(
self, width: int | None = None, height: int | None = None
) -> bytes | None:
"""Return a still image response from the camera."""
if not self._still_image_url:
if not self.stream:
await self.async_create_stream()
if self.stream:
return await self.stream.async_get_image(width, height)
return None
try:
url = self._still_image_url.async_render(parse_result=False)
except TemplateError as err:
_LOGGER.error("Error parsing template %s: %s", self._still_image_url, err)
return self._last_image
if url == self._last_url and self._limit_refetch:
return self._last_image
try:
async_client = get_async_client(self.hass, verify_ssl=self.verify_ssl)
response = await async_client.get(
url, auth=self._auth, timeout=GET_IMAGE_TIMEOUT
)
response.raise_for_status()
self._last_image = response.content
except httpx.TimeoutException:
_LOGGER.error("Timeout getting camera image from %s", self._name)
return self._last_image
except (httpx.RequestError, httpx.HTTPStatusError) as err:
_LOGGER.error("Error getting new camera image from %s: %s", self._name, err)
return self._last_image
self._last_url = url
return self._last_image
@property
def name(self):
"""Return the name of this device."""
return self._name
async def stream_source(self):
"""Return the source of the stream."""
if self._stream_source is None:
return None
try:
return self._stream_source.async_render(parse_result=False)
except TemplateError as err:
_LOGGER.error("Error parsing template %s: %s", self._stream_source, err)
return None