68 lines
1.9 KiB
Python
68 lines
1.9 KiB
Python
"""
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Camera that loads a picture from a local file.
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For more details about this platform, please refer to the documentation at
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https://home-assistant.io/components/camera.local_file/
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"""
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import logging
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import mimetypes
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import os
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import voluptuous as vol
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from homeassistant.const import CONF_NAME
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from homeassistant.components.camera import Camera, PLATFORM_SCHEMA
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from homeassistant.helpers import config_validation as cv
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_LOGGER = logging.getLogger(__name__)
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CONF_FILE_PATH = 'file_path'
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DEFAULT_NAME = 'Local File'
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
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vol.Required(CONF_FILE_PATH): cv.string,
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vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string
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})
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Set up the Camera that works with local files."""
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file_path = config[CONF_FILE_PATH]
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# check filepath given is readable
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if not os.access(file_path, os.R_OK):
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_LOGGER.warning("Could not read camera %s image from file: %s",
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config[CONF_NAME], file_path)
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add_devices([LocalFile(config[CONF_NAME], file_path)])
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class LocalFile(Camera):
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"""Representation of a local file camera."""
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def __init__(self, name, file_path):
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"""Initialize Local File Camera component."""
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super().__init__()
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self._name = name
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self._file_path = file_path
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# Set content type of local file
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content, _ = mimetypes.guess_type(file_path)
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if content is not None:
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self.content_type = content
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def camera_image(self):
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"""Return image response."""
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try:
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with open(self._file_path, 'rb') as file:
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return file.read()
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except FileNotFoundError:
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_LOGGER.warning("Could not read camera %s image from file: %s",
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self._name, self._file_path)
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@property
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def name(self):
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"""Return the name of this camera."""
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return self._name
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