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413 lines
14 KiB
413 lines
14 KiB
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2019 Chris Caron <lead2gold@gmail.com>
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# All rights reserved.
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#
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# This code is licensed under the MIT License.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files(the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions :
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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# Once you visit: https://developer.gitter.im/apps you'll get a personal
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# access token that will look something like this:
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# b5647881d563fm846dfbb2c27d1fe8f669b8f026
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# Don't worry about generating an app; this token is all you need to form
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# you're URL with. The syntax is as follows:
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# gitter://{token}/{channel}
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# Hence a URL might look like the following:
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# gitter://b5647881d563fm846dfbb2c27d1fe8f669b8f026/apprise
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# Note: You must have joined the channel to send a message to it!
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# Official API reference: https://developer.gitter.im/docs/user-resource
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import re
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import requests
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from json import loads
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from json import dumps
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from datetime import datetime
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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 parse_list
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from ..utils import parse_bool
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from ..utils import validate_regex
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from ..AppriseLocale import gettext_lazy as _
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# API Gitter URL
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GITTER_API_URL = 'https://api.gitter.im/v1'
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# Used to break path apart into list of targets
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TARGET_LIST_DELIM = re.compile(r'[ \t\r\n,\\/]+')
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class NotifyGitter(NotifyBase):
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"""
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A wrapper for Gitter Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'Gitter'
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# The services URL
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service_url = 'https://gitter.im/'
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# All notification requests are secure
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secure_protocol = 'gitter'
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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_gitter'
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# Allows the user to specify the NotifyImageSize object
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image_size = NotifyImageSize.XY_32
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# Gitter does not support a title
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title_maxlen = 0
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# Gitter 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 = 0
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# For Tracking Purposes
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ratelimit_reset = datetime.utcnow()
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# Default to 1
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ratelimit_remaining = 1
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# Default Notification Format
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notify_format = NotifyFormat.MARKDOWN
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# Define object templates
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templates = (
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'{schema}://{token}/{targets}/',
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)
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# Define our template tokens
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template_tokens = dict(NotifyBase.template_tokens, **{
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'token': {
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'name': _('Token'),
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'type': 'string',
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'private': True,
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'required': True,
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'regex': (r'^[a-z0-9]{40}$', 'i'),
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},
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'targets': {
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'name': _('Rooms'),
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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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'image': {
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'name': _('Include Image'),
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'type': 'bool',
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'default': False,
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'map_to': 'include_image',
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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, token, targets, include_image=False, **kwargs):
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"""
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Initialize Gitter Object
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"""
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super(NotifyGitter, self).__init__(**kwargs)
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# Secret Key (associated with project)
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self.token = validate_regex(
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token, *self.template_tokens['token']['regex'])
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if not self.token:
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msg = 'An invalid Gitter API Token ' \
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'({}) was specified.'.format(token)
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self.logger.warning(msg)
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raise TypeError(msg)
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# Parse our targets
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self.targets = parse_list(targets)
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if not self.targets:
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msg = 'There are no valid Gitter targets to notify.'
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self.logger.warning(msg)
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raise TypeError(msg)
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# Used to track maping of rooms to their numeric id lookup for
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# messaging
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self._room_mapping = None
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# Track whether or not we want to send an image with our notification
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# or not.
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self.include_image = include_image
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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 Gitter Notification
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"""
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# error tracking (used for function return)
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has_error = False
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# Set up our image for display if configured to do so
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image_url = None if not self.include_image \
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else self.image_url(notify_type)
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if image_url:
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body = '\n{}'.format(image_url, body)
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if self._room_mapping is None:
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# Populate our room mapping
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self._room_mapping = {}
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postokay, response = self._fetch(url='rooms')
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if not postokay:
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return False
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# Response generally looks like this:
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# [
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# {
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# noindex: False,
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# oneToOne: False,
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# avatarUrl: 'https://path/to/avatar/url',
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# url: '/apprise-notifications/community',
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# public: True,
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# tags: [],
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# lurk: False,
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# uri: 'apprise-notifications/community',
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# lastAccessTime: '2019-03-25T00:12:28.144Z',
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# topic: '',
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# roomMember: True,
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# groupId: '5c981cecd73408ce4fbbad2f',
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# githubType: 'REPO_CHANNEL',
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# unreadItems: 0,
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# mentions: 0,
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# security: 'PUBLIC',
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# userCount: 1,
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# id: '5c981cecd73408ce4fbbad31',
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# name: 'apprise/community'
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# }
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# ]
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for entry in response:
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self._room_mapping[entry['name'].lower().split('/')[0]] = {
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# The ID of the room
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'id': entry['id'],
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# A descriptive name (useful for logging)
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'uri': entry['uri'],
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}
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# Create a copy of the targets list
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targets = list(self.targets)
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while len(targets):
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target = targets.pop(0).lower()
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if target not in self._room_mapping:
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self.logger.warning(
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'Failed to locate Gitter room {}'.format(target))
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# Flag our error
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has_error = True
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continue
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# prepare our payload
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payload = {
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'text': body,
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}
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# Our Notification URL
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notify_url = 'rooms/{}/chatMessages'.format(
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self._room_mapping[target]['id'])
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# Perform our query
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postokay, response = self._fetch(
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notify_url, payload=dumps(payload), method='POST')
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if not postokay:
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# Flag our error
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has_error = True
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return not has_error
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def _fetch(self, url, payload=None, method='GET'):
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"""
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Wrapper to request object
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"""
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# Prepare our headers:
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headers = {
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'User-Agent': self.app_id,
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'Accept': 'application/json',
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'Authorization': 'Bearer ' + self.token,
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}
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if payload:
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# Only set our header payload if it's defined
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headers['Content-Type'] = 'application/json'
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# Default content response object
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content = {}
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# Update our URL
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url = '{}/{}'.format(GITTER_API_URL, url)
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# Some Debug Logging
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self.logger.debug('Gitter {} URL: {} (cert_verify={})'.format(
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method,
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url, self.verify_certificate))
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if payload:
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self.logger.debug('Gitter Payload: {}' .format(payload))
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# By default set wait to None
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wait = None
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if self.ratelimit_remaining == 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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# Gitter 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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now = datetime.utcnow()
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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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# We add 0.5 seconds to the end just to allow a grace
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# period.
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wait = (self.ratelimit_reset - now).total_seconds() + 0.5
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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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# fetch function
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fn = requests.post if method == 'POST' else requests.get
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try:
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r = fn(
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url,
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data=payload,
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headers=headers,
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verify=self.verify_certificate,
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)
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if r.status_code != requests.codes.ok:
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# We had a problem
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status_str = \
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NotifyGitter.http_response_code_lookup(r.status_code)
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self.logger.warning(
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'Failed to send Gitter {} to {}: '
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'{}error={}.'.format(
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method,
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url,
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', ' if status_str else '',
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r.status_code))
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self.logger.debug(
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'Response Details:\r\n{}'.format(r.content))
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# Mark our failure
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return (False, content)
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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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try:
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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 = datetime.utcfromtimestamp(
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int(r.headers.get('X-RateLimit-Reset')))
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except (TypeError, ValueError):
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# This is returned if we could not retrieve this information
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# gracefully accept this state and move on
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pass
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except requests.RequestException as e:
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self.logger.warning(
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'Exception received when sending Gitter {} to {}: '.
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format(method, url))
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self.logger.debug('Socket Exception: %s' % str(e))
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# Mark our failure
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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 arguments set
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args = {
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'format': self.notify_format,
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'overflow': self.overflow_mode,
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'image': 'yes' if self.include_image else 'no',
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'verify': 'yes' if self.verify_certificate else 'no',
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}
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return '{schema}://{token}/{targets}/?{args}'.format(
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schema=self.secure_protocol,
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token=self.pprint(self.token, privacy, safe=''),
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targets='/'.join(
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[NotifyGitter.quote(x, safe='') for x in self.targets]),
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args=NotifyGitter.urlencode(args))
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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 substantiate this object.
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"""
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results = NotifyBase.parse_url(url)
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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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results['token'] = NotifyGitter.unquote(results['host'])
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# Get our entries; split_path() looks after unquoting content for us
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# by default
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results['targets'] = NotifyGitter.split_path(results['fullpath'])
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# Support the 'to' variable so that we can support targets 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'] += NotifyGitter.parse_list(results['qsd']['to'])
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# Include images with our message
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results['include_image'] = \
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parse_bool(results['qsd'].get('image', False))
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return results
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