120 lines
4.2 KiB
Python
120 lines
4.2 KiB
Python
"""Discord platform for notify component."""
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import logging
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import os.path
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import discord
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import voluptuous as vol
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from homeassistant.components.notify import (
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ATTR_DATA,
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ATTR_TARGET,
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PLATFORM_SCHEMA,
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BaseNotificationService,
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)
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from homeassistant.const import CONF_TOKEN
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import homeassistant.helpers.config_validation as cv
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_LOGGER = logging.getLogger(__name__)
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ATTR_EMBED = "embed"
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ATTR_EMBED_AUTHOR = "author"
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ATTR_EMBED_FIELDS = "fields"
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ATTR_EMBED_FOOTER = "footer"
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ATTR_EMBED_THUMBNAIL = "thumbnail"
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ATTR_IMAGES = "images"
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({vol.Required(CONF_TOKEN): cv.string})
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def get_service(hass, config, discovery_info=None):
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"""Get the Discord notification service."""
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token = config[CONF_TOKEN]
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return DiscordNotificationService(hass, token)
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class DiscordNotificationService(BaseNotificationService):
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"""Implement the notification service for Discord."""
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def __init__(self, hass, token):
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"""Initialize the service."""
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self.token = token
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self.hass = hass
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def file_exists(self, filename):
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"""Check if a file exists on disk and is in authorized path."""
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if not self.hass.config.is_allowed_path(filename):
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return False
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return os.path.isfile(filename)
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async def async_send_message(self, message, **kwargs):
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"""Login to Discord, send message to channel(s) and log out."""
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discord.VoiceClient.warn_nacl = False
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discord_bot = discord.Client()
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images = None
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embedding = None
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if ATTR_TARGET not in kwargs:
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_LOGGER.error("No target specified")
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return None
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data = kwargs.get(ATTR_DATA) or {}
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if ATTR_EMBED in data:
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embedding = data[ATTR_EMBED]
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fields = embedding.get(ATTR_EMBED_FIELDS)
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if ATTR_IMAGES in data:
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images = []
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for image in data.get(ATTR_IMAGES):
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image_exists = await self.hass.async_add_executor_job(
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self.file_exists, image
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)
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if image_exists:
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images.append(image)
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else:
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_LOGGER.warning("Image not found: %s", image)
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# pylint: disable=unused-variable
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@discord_bot.event
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async def on_ready():
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"""Send the messages when the bot is ready."""
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try:
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for channelid in kwargs[ATTR_TARGET]:
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channelid = int(channelid)
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channel = discord_bot.get_channel(
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channelid
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) or discord_bot.get_user(channelid)
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if channel is None:
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_LOGGER.warning("Channel not found for ID: %s", channelid)
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continue
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# Must create new instances of File for each channel.
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files = None
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if images:
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files = []
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for image in images:
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files.append(discord.File(image))
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if embedding:
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embed = discord.Embed(**embedding)
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if fields:
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for field_num, field_name in enumerate(fields):
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embed.add_field(**fields[field_num])
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if ATTR_EMBED_FOOTER in embedding:
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embed.set_footer(**embedding[ATTR_EMBED_FOOTER])
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if ATTR_EMBED_AUTHOR in embedding:
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embed.set_author(**embedding[ATTR_EMBED_AUTHOR])
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if ATTR_EMBED_THUMBNAIL in embedding:
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embed.set_thumbnail(**embedding[ATTR_EMBED_THUMBNAIL])
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await channel.send(message, files=files, embed=embed)
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else:
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await channel.send(message, files=files)
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except (discord.errors.HTTPException, discord.errors.NotFound) as error:
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_LOGGER.warning("Communication error: %s", error)
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await discord_bot.logout()
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await discord_bot.close()
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# Using reconnect=False prevents multiple ready events to be fired.
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await discord_bot.start(self.token, reconnect=False)
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