bazarr/libs/apprise/plugins/NotifyDiscord.py

293 lines
8.8 KiB
Python

# -*- coding: utf-8 -*-
#
# Discord Notify Wrapper
#
# Copyright (C) 2018 Chris Caron <lead2gold@gmail.com>
#
# This file is part of apprise.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
# For this to work correctly you need to create a webhook. To do this just
# click on the little gear icon next to the channel you're part of. From
# here you'll be able to access the Webhooks menu and create a new one.
#
# When you've completed, you'll get a URL that looks a little like this:
# https://discordapp.com/api/webhooks/417429632418316298/\
# JHZ7lQml277CDHmQKMHI8qBe7bk2ZwO5UKjCiOAF7711o33MyqU344Qpgv7YTpadV_js
#
# Simplified, it looks like this:
# https://discordapp.com/api/webhooks/WEBHOOK_ID/WEBHOOK_TOKEN
#
# This plugin will simply work using the url of:
# discord://WEBHOOK_ID/WEBHOOK_TOKEN
#
# API Documentation on Webhooks:
# - https://discordapp.com/developers/docs/resources/webhook
#
import re
import requests
from json import dumps
from .NotifyBase import NotifyBase
from .NotifyBase import HTTP_ERROR_MAP
from ..common import NotifyImageSize
from ..common import NotifyFormat
from ..utils import parse_bool
class NotifyDiscord(NotifyBase):
"""
A wrapper to Discord Notifications
"""
# The default secure protocol
secure_protocol = 'discord'
# Discord Webhook
notify_url = 'https://discordapp.com/api/webhooks'
# Allows the user to specify the NotifyImageSize object
image_size = NotifyImageSize.XY_256
# The maximum allowable characters allowed in the body per message
body_maxlen = 2000
# Default Notify Format
notify_format = NotifyFormat.MARKDOWN
def __init__(self, webhook_id, webhook_token, tts=False, avatar=True,
footer=False, thumbnail=True, **kwargs):
"""
Initialize Discord Object
"""
super(NotifyDiscord, self).__init__(**kwargs)
if not webhook_id:
raise TypeError(
'An invalid Client ID was specified.'
)
if not webhook_token:
raise TypeError(
'An invalid Webhook Token was specified.'
)
# Store our data
self.webhook_id = webhook_id
self.webhook_token = webhook_token
# Text To Speech
self.tts = tts
# Over-ride Avatar Icon
self.avatar = avatar
# Place a footer icon
self.footer = footer
# Place a thumbnail image inline with the message body
self.thumbnail = thumbnail
return
def notify(self, title, body, notify_type, **kwargs):
"""
Perform Discord Notification
"""
headers = {
'User-Agent': self.app_id,
'Content-Type': 'multipart/form-data',
}
# Prepare JSON Object
payload = {
# Text-To-Speech
'tts': self.tts,
# If Text-To-Speech is set to True, then we do not want to wait
# for the whole message before continuing. Otherwise, we wait
'wait': self.tts is False,
# Our color associated with our notification
'color': self.color(notify_type, int),
'embeds': [{
'provider': {
'name': self.app_id,
'url': self.app_url,
},
'title': title,
'type': 'rich',
'description': body,
}]
}
if self.notify_format == NotifyFormat.MARKDOWN:
fields = self.extract_markdown_sections(body)
if len(fields) > 0:
# Apply our additional parsing for a better presentation
# Swap first entry for description
payload['embeds'][0]['description'] = \
fields[0].get('name') + fields[0].get('value')
payload['embeds'][0]['fields'] = fields[1:]
if self.footer:
logo_url = self.image_url(notify_type, logo=True)
payload['embeds'][0]['footer'] = {
'text': self.app_desc,
}
if logo_url:
payload['embeds'][0]['footer']['icon_url'] = logo_url
image_url = self.image_url(notify_type)
if image_url:
if self.thumbnail:
payload['embeds'][0]['thumbnail'] = {
'url': image_url,
'height': 256,
'width': 256,
}
if self.avatar:
payload['avatar_url'] = image_url
if self.user:
# Optionally override the default username of the webhook
payload['username'] = self.user
# Construct Notify URL
notify_url = '{0}/{1}/{2}'.format(
self.notify_url,
self.webhook_id,
self.webhook_token,
)
self.logger.debug('Discord POST URL: %s (cert_verify=%r)' % (
notify_url, self.verify_certificate,
))
self.logger.debug('Discord Payload: %s' % str(payload))
try:
r = requests.post(
notify_url,
data=dumps(payload),
headers=headers,
verify=self.verify_certificate,
)
if r.status_code not in (
requests.codes.ok, requests.codes.no_content):
# We had a problem
try:
self.logger.warning(
'Failed to send Discord notification: '
'%s (error=%s).' % (
HTTP_ERROR_MAP[r.status_code],
r.status_code))
except KeyError:
self.logger.warning(
'Failed to send Discord notification '
'(error=%s).' % r.status_code)
self.logger.debug('Response Details: %s' % r.raw.read())
# Return; we're done
return False
else:
self.logger.info('Sent Discord notification.')
except requests.RequestException as e:
self.logger.warning(
'A Connection error occured sending Discord '
'notification.'
)
self.logger.debug('Socket Exception: %s' % str(e))
return False
return True
@staticmethod
def parse_url(url):
"""
Parses the URL and returns enough arguments that can allow
us to substantiate this object.
Syntax:
discord://webhook_id/webhook_token
"""
results = NotifyBase.parse_url(url)
if not results:
# We're done early as we couldn't load the results
return results
# Store our webhook ID
webhook_id = results['host']
# Now fetch our tokens
try:
webhook_token = [x for x in filter(bool, NotifyBase.split_path(
results['fullpath']))][0]
except (ValueError, AttributeError, IndexError):
# Force some bad values that will get caught
# in parsing later
webhook_token = None
results['webhook_id'] = webhook_id
results['webhook_token'] = webhook_token
# Text To Speech
results['tts'] = parse_bool(results['qsd'].get('tts', False))
# Use Footer
results['footer'] = parse_bool(results['qsd'].get('footer', False))
# Update Avatar Icon
results['avatar'] = parse_bool(results['qsd'].get('avatar', True))
# Use Thumbnail
results['thumbnail'] = \
parse_bool(results['qsd'].get('thumbnail', True))
return results
@staticmethod
def extract_markdown_sections(markdown):
"""
Takes a string in a markdown type format and extracts
the headers and their corresponding sections into individual
fields that get passed as an embed entry to Discord.
"""
regex = re.compile(
r'\s*#+\s*(?P<name>[^#\n]+)([ \r\t\v#]*)'
r'(?P<value>(.+?)(\n(?!\s#))|\s*$)', flags=re.S)
common = regex.finditer(markdown)
fields = list()
for el in common:
d = el.groupdict()
fields.append({
'name': d.get('name', '').strip(),
'value': '```md\n' + d.get('value', '').strip() + '\n```'
})
return fields