89 lines
2.9 KiB
Python
89 lines
2.9 KiB
Python
"""
|
|
Support for IP Cameras.
|
|
|
|
For more details about this platform, please refer to the documentation at
|
|
https://home-assistant.io/components/camera.mjpeg/
|
|
"""
|
|
import logging
|
|
from contextlib import closing
|
|
|
|
import requests
|
|
from requests.auth import HTTPBasicAuth
|
|
|
|
from homeassistant.components.camera import DOMAIN, Camera
|
|
from homeassistant.const import HTTP_OK
|
|
from homeassistant.helpers import validate_config
|
|
|
|
CONTENT_TYPE_HEADER = 'Content-Type'
|
|
|
|
_LOGGER = logging.getLogger(__name__)
|
|
|
|
|
|
# pylint: disable=unused-argument
|
|
def setup_platform(hass, config, add_devices_callback, discovery_info=None):
|
|
"""Setup a MJPEG IP Camera."""
|
|
if not validate_config({DOMAIN: config}, {DOMAIN: ['mjpeg_url']},
|
|
_LOGGER):
|
|
return None
|
|
|
|
add_devices_callback([MjpegCamera(config)])
|
|
|
|
|
|
# pylint: disable=too-many-instance-attributes
|
|
class MjpegCamera(Camera):
|
|
"""An implementation of an IP camera that is reachable over a URL."""
|
|
|
|
def __init__(self, device_info):
|
|
"""Initialize a MJPEG camera."""
|
|
super().__init__()
|
|
self._name = device_info.get('name', 'Mjpeg Camera')
|
|
self._username = device_info.get('username')
|
|
self._password = device_info.get('password')
|
|
self._mjpeg_url = device_info['mjpeg_url']
|
|
|
|
def camera_stream(self):
|
|
"""Return a MJPEG stream image response directly from the camera."""
|
|
if self._username and self._password:
|
|
return requests.get(self._mjpeg_url,
|
|
auth=HTTPBasicAuth(self._username,
|
|
self._password),
|
|
stream=True)
|
|
else:
|
|
return requests.get(self._mjpeg_url,
|
|
stream=True)
|
|
|
|
def camera_image(self):
|
|
"""Return a still image response from the camera."""
|
|
def process_response(response):
|
|
"""Take in a response object, return the jpg from it."""
|
|
data = b''
|
|
for chunk in response.iter_content(1024):
|
|
data += chunk
|
|
jpg_start = data.find(b'\xff\xd8')
|
|
jpg_end = data.find(b'\xff\xd9')
|
|
if jpg_start != -1 and jpg_end != -1:
|
|
jpg = data[jpg_start:jpg_end + 2]
|
|
return jpg
|
|
|
|
with closing(self.camera_stream()) as response:
|
|
return process_response(response)
|
|
|
|
def mjpeg_stream(self, handler):
|
|
"""Generate an HTTP MJPEG stream from the camera."""
|
|
response = self.camera_stream()
|
|
content_type = response.headers[CONTENT_TYPE_HEADER]
|
|
|
|
handler.send_response(HTTP_OK)
|
|
handler.send_header(CONTENT_TYPE_HEADER, content_type)
|
|
handler.end_headers()
|
|
|
|
for chunk in response.iter_content(chunk_size=1024):
|
|
if not chunk:
|
|
break
|
|
handler.wfile.write(chunk)
|
|
|
|
@property
|
|
def name(self):
|
|
"""Return the name of this camera."""
|
|
return self._name
|