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438 lines
14 KiB
438 lines
14 KiB
# -*- coding: utf-8 -*-
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# BSD 2-Clause License
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#
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# Apprise - Push Notification Library.
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# Copyright (c) 2024, Chris Caron <lead2gold@gmail.com>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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# Youll need your own Revolt Bot and a Channel Id for the notifications to
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# be sent in since Revolt does not support webhooks yet.
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#
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# This plugin will simply work using the url of:
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# revolt://BOT_TOKEN/CHANNEL_ID
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#
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# API Documentation:
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# - https://api.revolt.chat/swagger/index.html
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#
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import requests
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from json import dumps, loads
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from datetime import timedelta
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from datetime import datetime
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from datetime import timezone
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from .NotifyBase import NotifyBase
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from ..common import NotifyImageSize
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from ..common import NotifyFormat
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from ..common import NotifyType
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from ..utils import validate_regex
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from ..utils import parse_list
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from ..AppriseLocale import gettext_lazy as _
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class NotifyRevolt(NotifyBase):
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"""
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A wrapper for Revolt Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'Revolt'
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# The services URL
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service_url = 'https://revolt.chat/'
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# The default secure protocol
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secure_protocol = 'revolt'
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# A URL that takes you to the setup/help of the specific protocol
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setup_url = 'https://github.com/caronc/apprise/wiki/Notify_revolt'
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# Revolt Channel Message
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notify_url = 'https://api.revolt.chat/'
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# Revolt supports attachments but doesn't support it here (for now)
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attachment_support = False
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# Allows the user to specify the NotifyImageSize object
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image_size = NotifyImageSize.XY_256
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# Revolt is kind enough to return how many more requests we're allowed to
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# continue to make within it's header response as:
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# X-RateLimit-Reset: The epoc time (in seconds) we can expect our
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# rate-limit to be reset.
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# X-RateLimit-Remaining: an integer identifying how many requests we're
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# still allow to make.
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request_rate_per_sec = 3
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# Safety net
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clock_skew = timedelta(seconds=2)
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# The maximum allowable characters allowed in the body per message
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body_maxlen = 2000
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# Title Maximum Length
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title_maxlen = 100
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# Define object templates
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templates = (
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'{schema}://{bot_token}/{targets}',
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)
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# Defile out template tokens
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template_tokens = dict(NotifyBase.template_tokens, **{
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'bot_token': {
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'name': _('Bot Token'),
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'type': 'string',
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'private': True,
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'required': True,
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},
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'target_channel': {
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'name': _('Channel ID'),
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'type': 'string',
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'map_to': 'targets',
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'regex': (r'^[a-z0-9_-]+$', 'i'),
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'private': True,
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'required': True,
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},
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'targets': {
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'name': _('Targets'),
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'type': 'list:string',
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},
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})
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# Define our template arguments
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template_args = dict(NotifyBase.template_args, **{
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'channel': {
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'alias_of': 'targets',
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},
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'bot_token': {
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'alias_of': 'bot_token',
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},
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'icon_url': {
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'name': _('Icon URL'),
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'type': 'string'
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},
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'url': {
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'name': _('Embed URL'),
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'type': 'string',
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'map_to': 'link',
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},
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'to': {
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'alias_of': 'targets',
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},
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})
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def __init__(self, bot_token, targets, icon_url=None, link=None,
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**kwargs):
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super().__init__(**kwargs)
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# Bot Token
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self.bot_token = validate_regex(bot_token)
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if not self.bot_token:
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msg = 'An invalid Revolt Bot Token ' \
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'({}) was specified.'.format(bot_token)
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self.logger.warning(msg)
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raise TypeError(msg)
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# Parse our Channel IDs
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self.targets = []
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for target in parse_list(targets):
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results = validate_regex(
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target, *self.template_tokens['target_channel']['regex'])
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if not results:
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self.logger.warning(
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'Dropped invalid Revolt channel ({}) specified.'
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.format(target),
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)
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continue
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# Add our target
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self.targets.append(target)
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# Image for Embed
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self.icon_url = icon_url
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# Url for embed title
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self.link = link
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# For Tracking Purposes
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self.ratelimit_reset = datetime.now(timezone.utc).replace(tzinfo=None)
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# Default to 1.0
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self.ratelimit_remaining = 1.0
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return
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def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
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"""
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Perform Revolt Notification
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"""
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if len(self.targets) == 0:
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self.logger.warning('There were not Revolt channels to notify.')
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return False
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payload = {}
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# Acquire image_url
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image_url = self.icon_url \
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if self.icon_url else self.image_url(notify_type)
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if self.notify_format == NotifyFormat.MARKDOWN:
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payload['embeds'] = [{
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'title': None if not title else title[0:self.title_maxlen],
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'description': body,
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# Our color associated with our notification
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'colour': self.color(notify_type),
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'replies': None
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}]
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if image_url:
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payload['embeds'][0]['icon_url'] = image_url
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if self.link:
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payload['embeds'][0]['url'] = self.link
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else:
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payload['content'] = \
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body if not title else "{}\n{}".format(title, body)
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has_error = False
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channel_ids = list(self.targets)
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for channel_id in channel_ids:
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postokay, response = self._send(payload, channel_id)
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if not postokay:
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# Failed to send message
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has_error = True
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return not has_error
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def _send(self, payload, channel_id, retries=1, **kwargs):
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"""
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Wrapper to the requests (post) object
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"""
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headers = {
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'User-Agent': self.app_id,
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'X-Bot-Token': self.bot_token,
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'Content-Type': 'application/json; charset=utf-8',
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'Accept': 'application/json; charset=utf-8',
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}
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notify_url = '{0}channels/{1}/messages'.format(
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self.notify_url,
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channel_id
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)
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self.logger.debug('Revolt POST URL: %s (cert_verify=%r)' % (
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notify_url, self.verify_certificate
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))
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self.logger.debug('Revolt Payload: %s' % str(payload))
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# By default set wait to None
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wait = None
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now = datetime.now(timezone.utc).replace(tzinfo=None)
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if self.ratelimit_remaining <= 0.0:
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# Determine how long we should wait for or if we should wait at
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# all. This isn't fool-proof because we can't be sure the client
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# time (calling this script) is completely synced up with the
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# Discord server. One would hope we're on NTP and our clocks are
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# the same allowing this to role smoothly:
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if now < self.ratelimit_reset:
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# We need to throttle for the difference in seconds
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wait = abs(
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(self.ratelimit_reset - now + self.clock_skew)
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.total_seconds())
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# Default content response object
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content = {}
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# Always call throttle before any remote server i/o is made;
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self.throttle(wait=wait)
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try:
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r = requests.post(
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notify_url,
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data=dumps(payload),
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headers=headers,
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verify=self.verify_certificate,
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timeout=self.request_timeout
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)
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try:
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content = loads(r.content)
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except (AttributeError, TypeError, ValueError):
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# ValueError = r.content is Unparsable
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# TypeError = r.content is None
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# AttributeError = r is None
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content = {}
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# Handle rate limiting (if specified)
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try:
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# Store our rate limiting (if provided)
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self.ratelimit_remaining = \
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int(r.headers.get('X-RateLimit-Remaining'))
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self.ratelimit_reset = \
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now + timedelta(seconds=(int(
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r.headers.get('X-RateLimit-Reset-After')) / 1000))
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except (TypeError, ValueError):
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# This is returned if we could not retrieve this
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# information gracefully accept this state and move on
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pass
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if r.status_code not in (
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requests.codes.ok, requests.codes.no_content):
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# Some details to debug by
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self.logger.debug('Response Details:\r\n{}'.format(
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content if content else r.content))
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# We had a problem
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status_str = \
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NotifyBase.http_response_code_lookup(r.status_code)
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self.logger.warning(
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'Revolt request limit reached; '
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'instructed to throttle for %.3fs',
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abs((self.ratelimit_reset - now + self.clock_skew)
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.total_seconds()))
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if r.status_code == requests.codes.too_many_requests \
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and retries > 0:
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# Try again
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return self._send(
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payload=payload, channel_id=channel_id,
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retries=retries - 1, **kwargs)
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self.logger.warning(
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'Failed to send to Revolt notification: '
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'{}{}error={}.'.format(
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status_str,
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', ' if status_str else '',
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r.status_code))
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# Return; we're done
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return (False, content)
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else:
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self.logger.info('Sent Revolt notification.')
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except requests.RequestException as e:
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self.logger.warning(
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'A Connection error occurred posting to Revolt.')
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self.logger.debug('Socket Exception: %s' % str(e))
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return (False, content)
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return (True, content)
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def url(self, privacy=False, *args, **kwargs):
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"""
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Returns the URL built dynamically based on specified arguments.
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"""
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# Define any URL parameters
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params = {}
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if self.icon_url:
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params['icon_url'] = self.icon_url
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if self.link:
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params['url'] = self.link
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params.update(self.url_parameters(privacy=privacy, *args, **kwargs))
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return '{schema}://{bot_token}/{targets}/?{params}'.format(
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schema=self.secure_protocol,
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bot_token=self.pprint(self.bot_token, privacy, safe=''),
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targets='/'.join(
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[self.pprint(x, privacy, safe='') for x in self.targets]),
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params=NotifyRevolt.urlencode(params),
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)
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def __len__(self):
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"""
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Returns the number of targets associated with this notification
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"""
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return 1 if not self.targets else len(self.targets)
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@staticmethod
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def parse_url(url):
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"""
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Parses the URL and returns enough arguments that can allow
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us to re-instantiate this object.
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"""
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results = NotifyBase.parse_url(url, verify_host=False)
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if not results:
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# We're done early as we couldn't load the results
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return results
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# Store our bot token
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bot_token = NotifyRevolt.unquote(results['host'])
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# Now fetch the Channel IDs
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targets = NotifyRevolt.split_path(results['fullpath'])
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results['bot_token'] = bot_token
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results['targets'] = targets
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# Support the 'to' variable so that we can support rooms this way too
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# The 'to' makes it easier to use yaml configuration
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if 'to' in results['qsd'] and len(results['qsd']['to']):
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results['targets'] += \
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NotifyRevolt.parse_list(results['qsd']['to'])
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# Support channel id on the URL string (if specified)
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if 'channel' in results['qsd']:
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results['targets'] += \
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NotifyRevolt.parse_list(results['qsd']['channel'])
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# Support bot token on the URL string (if specified)
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if 'bot_token' in results['qsd']:
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results['bot_token'] = \
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NotifyRevolt.unquote(results['qsd']['bot_token'])
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if 'icon_url' in results['qsd']:
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results['icon_url'] = \
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NotifyRevolt.unquote(results['qsd']['icon_url'])
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if 'url' in results['qsd']:
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results['link'] = NotifyRevolt.unquote(results['qsd']['url'])
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if 'format' not in results['qsd'] and (
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'url' in results or 'icon_url' in results):
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# Markdown is implied
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results['format'] = NotifyFormat.MARKDOWN
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return results
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