Consolidate all platforms that have no tests (#22096)

* Consolidate

* Fix tests

* Update imports

* Fix import

* Use importlib because integration and package share name

* Fix more tests

* Update .coveragerc and CODEOWNERS

homeassistant/components/mjpeg/camera.py

@@ -0,0 +1,181 @@
+"""
+Support for IP Cameras.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/camera.mjpeg/
+"""
+import asyncio
+import logging
+from contextlib import closing
+
+import aiohttp
+import async_timeout
+import requests
+from requests.auth import HTTPBasicAuth, HTTPDigestAuth
+import voluptuous as vol
+
+from homeassistant.const import (
+    CONF_NAME, CONF_USERNAME, CONF_PASSWORD, CONF_AUTHENTICATION,
+    HTTP_BASIC_AUTHENTICATION, HTTP_DIGEST_AUTHENTICATION, CONF_VERIFY_SSL)
+from homeassistant.components.camera import (PLATFORM_SCHEMA, Camera)
+from homeassistant.helpers.aiohttp_client import (
+    async_get_clientsession, async_aiohttp_proxy_web)
+from homeassistant.helpers import config_validation as cv
+
+_LOGGER = logging.getLogger(__name__)
+
+CONF_MJPEG_URL = 'mjpeg_url'
+CONF_STILL_IMAGE_URL = 'still_image_url'
+CONTENT_TYPE_HEADER = 'Content-Type'
+
+DEFAULT_NAME = 'Mjpeg Camera'
+DEFAULT_VERIFY_SSL = True
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_MJPEG_URL): cv.url,
+    vol.Optional(CONF_STILL_IMAGE_URL): cv.url,
+    vol.Optional(CONF_AUTHENTICATION, default=HTTP_BASIC_AUTHENTICATION):
+        vol.In([HTTP_BASIC_AUTHENTICATION, HTTP_DIGEST_AUTHENTICATION]),
+    vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
+    vol.Optional(CONF_PASSWORD): cv.string,
+    vol.Optional(CONF_USERNAME): cv.string,
+    vol.Optional(CONF_VERIFY_SSL, default=DEFAULT_VERIFY_SSL): cv.boolean,
+})
+
+
+async def async_setup_platform(hass, config, async_add_entities,
+                               discovery_info=None):
+    """Set up a MJPEG IP Camera."""
+    filter_urllib3_logging()
+
+    if discovery_info:
+        config = PLATFORM_SCHEMA(discovery_info)
+    async_add_entities([MjpegCamera(config)])
+
+
+def filter_urllib3_logging():
+    """Filter header errors from urllib3 due to a urllib3 bug."""
+    urllib3_logger = logging.getLogger("urllib3.connectionpool")
+    if not any(isinstance(x, NoHeaderErrorFilter)
+               for x in urllib3_logger.filters):
+        urllib3_logger.addFilter(
+            NoHeaderErrorFilter()
+        )
+
+
+def extract_image_from_mjpeg(stream):
+    """Take in a MJPEG stream object, return the jpg from it."""
+    data = b''
+
+    for chunk in stream:
+        data += chunk
+        jpg_end = data.find(b'\xff\xd9')
+
+        if jpg_end == -1:
+            continue
+
+        jpg_start = data.find(b'\xff\xd8')
+
+        if jpg_start == -1:
+            continue
+
+        return data[jpg_start:jpg_end + 2]
+
+
+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(CONF_NAME)
+        self._authentication = device_info.get(CONF_AUTHENTICATION)
+        self._username = device_info.get(CONF_USERNAME)
+        self._password = device_info.get(CONF_PASSWORD)
+        self._mjpeg_url = device_info[CONF_MJPEG_URL]
+        self._still_image_url = device_info.get(CONF_STILL_IMAGE_URL)
+
+        self._auth = None
+        if self._username and self._password:
+            if self._authentication == HTTP_BASIC_AUTHENTICATION:
+                self._auth = aiohttp.BasicAuth(
+                    self._username, password=self._password
+                )
+        self._verify_ssl = device_info.get(CONF_VERIFY_SSL)
+
+    async def async_camera_image(self):
+        """Return a still image response from the camera."""
+        # DigestAuth is not supported
+        if self._authentication == HTTP_DIGEST_AUTHENTICATION or \
+           self._still_image_url is None:
+            image = await self.hass.async_add_job(
+                self.camera_image)
+            return image
+
+        websession = async_get_clientsession(
+            self.hass,
+            verify_ssl=self._verify_ssl
+        )
+        try:
+            with async_timeout.timeout(10, loop=self.hass.loop):
+                response = await websession.get(
+                    self._still_image_url, auth=self._auth)
+
+                image = await response.read()
+                return image
+
+        except asyncio.TimeoutError:
+            _LOGGER.error("Timeout getting camera image")
+
+        except aiohttp.ClientError as err:
+            _LOGGER.error("Error getting new camera image: %s", err)
+
+    def camera_image(self):
+        """Return a still image response from the camera."""
+        if self._username and self._password:
+            if self._authentication == HTTP_DIGEST_AUTHENTICATION:
+                auth = HTTPDigestAuth(self._username, self._password)
+            else:
+                auth = HTTPBasicAuth(self._username, self._password)
+            req = requests.get(
+                self._mjpeg_url,
+                auth=auth,
+                stream=True,
+                timeout=10,
+                verify=self._verify_ssl
+            )
+        else:
+            req = requests.get(self._mjpeg_url, stream=True, timeout=10)
+
+        # https://github.com/PyCQA/pylint/issues/1437
+        # pylint: disable=no-member
+        with closing(req) as response:
+            return extract_image_from_mjpeg(response.iter_content(102400))
+
+    async def handle_async_mjpeg_stream(self, request):
+        """Generate an HTTP MJPEG stream from the camera."""
+        # aiohttp don't support DigestAuth -> Fallback
+        if self._authentication == HTTP_DIGEST_AUTHENTICATION:
+            return await super().handle_async_mjpeg_stream(request)
+
+        # connect to stream
+        websession = async_get_clientsession(
+            self.hass,
+            verify_ssl=self._verify_ssl
+        )
+        stream_coro = websession.get(self._mjpeg_url, auth=self._auth)
+
+        return await async_aiohttp_proxy_web(self.hass, request, stream_coro)
+
+    @property
+    def name(self):
+        """Return the name of this camera."""
+        return self._name
+
+
+class NoHeaderErrorFilter(logging.Filter):
+    """Filter out urllib3 Header Parsing Errors due to a urllib3 bug."""
+
+    def filter(self, record):
+        """Filter out Header Parsing Errors."""
+        return "Failed to parse headers" not in record.getMessage()