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377 lines
12 KiB
377 lines
12 KiB
# -*- coding: utf-8 -*-
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# BSD 3-Clause License
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#
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# Apprise - Push Notification Library.
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# Copyright (c) 2023, 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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# 3. Neither the name of the copyright holder nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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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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import re
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import requests
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from json import dumps
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from itertools import chain
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from .NotifyBase import NotifyBase
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from ..URLBase import PrivacyMode
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from ..common import NotifyType
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from ..utils import parse_list
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from ..utils import validate_regex
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from ..AppriseLocale import gettext_lazy as _
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# Used to detect and parse channels
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IS_CHANNEL = re.compile(r'^#?(?P<name>[A-Za-z0-9]+)$')
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# Used to detect and parse a users push id
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IS_USER_PUSHED_ID = re.compile(r'^@(?P<name>[A-Za-z0-9]+)$')
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class NotifyPushed(NotifyBase):
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"""
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A wrapper to Pushed Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'Pushed'
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# The services URL
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service_url = 'https://pushed.co/'
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# The default secure protocol
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secure_protocol = 'pushed'
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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_pushed'
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# Pushed uses the http protocol with JSON requests
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notify_url = 'https://api.pushed.co/1/push'
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# A title can not be used for Pushed Messages. Setting this to zero will
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# cause any title (if defined) to get placed into the message body.
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title_maxlen = 0
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# The maximum allowable characters allowed in the body per message
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body_maxlen = 160
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# Define object templates
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templates = (
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'{schema}://{app_key}/{app_secret}',
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'{schema}://{app_key}/{app_secret}@{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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'app_key': {
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'name': _('Application Key'),
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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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'app_secret': {
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'name': _('Application Secret'),
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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_user': {
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'name': _('Target User'),
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'prefix': '@',
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'type': 'string',
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'map_to': 'targets',
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},
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'target_channel': {
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'name': _('Target Channel'),
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'type': 'string',
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'prefix': '#',
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'map_to': 'targets',
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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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'to': {
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'alias_of': 'targets',
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},
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})
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def __init__(self, app_key, app_secret, targets=None, **kwargs):
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"""
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Initialize Pushed Object
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"""
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super().__init__(**kwargs)
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# Application Key (associated with project)
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self.app_key = validate_regex(app_key)
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if not self.app_key:
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msg = 'An invalid Pushed Application Key ' \
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'({}) was specified.'.format(app_key)
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self.logger.warning(msg)
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raise TypeError(msg)
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# Access Secret (associated with project)
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self.app_secret = validate_regex(app_secret)
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if not self.app_secret:
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msg = 'An invalid Pushed Application Secret ' \
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'({}) was specified.'.format(app_secret)
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self.logger.warning(msg)
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raise TypeError(msg)
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# Initialize channel list
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self.channels = list()
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# Initialize user list
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self.users = list()
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# Get our targets
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targets = parse_list(targets)
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if targets:
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# Validate recipients and drop bad ones:
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for target in targets:
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result = IS_CHANNEL.match(target)
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if result:
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# store valid device
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self.channels.append(result.group('name'))
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continue
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result = IS_USER_PUSHED_ID.match(target)
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if result:
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# store valid room
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self.users.append(result.group('name'))
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continue
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self.logger.warning(
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'Dropped invalid channel/userid '
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'(%s) specified.' % target,
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)
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if len(self.channels) + len(self.users) == 0:
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# We have no valid channels or users to notify after
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# explicitly identifying at least one.
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msg = 'No Pushed targets to notify.'
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self.logger.warning(msg)
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raise TypeError(msg)
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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 Pushed Notification
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"""
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# Initiaize our error tracking
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has_error = False
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# prepare JSON Object
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payload = {
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'app_key': self.app_key,
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'app_secret': self.app_secret,
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'target_type': 'app',
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'content': body,
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}
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# So the logic is as follows:
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# - if no user/channel was specified, then we just simply notify the
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# app.
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# - if there are user/channels specified, then we only alert them
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# while respecting throttle limits (in the event there are a lot of
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# entries.
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if len(self.channels) + len(self.users) == 0:
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# Just notify the app
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return self._send(
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payload=payload, notify_type=notify_type, **kwargs)
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# If our code reaches here, we want to target channels and users (by
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# their Pushed_ID instead...
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# Generate a copy of our original list
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channels = list(self.channels)
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users = list(self.users)
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# Copy our payload
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_payload = dict(payload)
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_payload['target_type'] = 'channel'
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while len(channels) > 0:
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# Get Channel
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_payload['target_alias'] = channels.pop(0)
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if not self._send(
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payload=_payload, notify_type=notify_type, **kwargs):
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# toggle flag
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has_error = True
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# Copy our payload
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_payload = dict(payload)
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_payload['target_type'] = 'pushed_id'
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# Send all our defined User Pushed ID's
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while len(users):
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# Get User's Pushed ID
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_payload['pushed_id'] = users.pop(0)
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if not self._send(
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payload=_payload, notify_type=notify_type, **kwargs):
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# toggle flag
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has_error = True
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return not has_error
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def _send(self, payload, notify_type, **kwargs):
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"""
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A lower level call that directly pushes a payload to the Pushed
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Notification servers. This should never be called directly; it is
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referenced automatically through the send() function.
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"""
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headers = {
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'User-Agent': self.app_id,
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'Content-Type': 'application/json'
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}
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self.logger.debug('Pushed POST URL: %s (cert_verify=%r)' % (
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self.notify_url, self.verify_certificate,
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))
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self.logger.debug('Pushed Payload: %s' % str(payload))
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# Always call throttle before any remote server i/o is made
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self.throttle()
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try:
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r = requests.post(
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self.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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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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NotifyPushed.http_response_code_lookup(r.status_code)
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self.logger.warning(
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'Failed to send Pushed 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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self.logger.debug('Response Details:\r\n{}'.format(r.content))
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# Return; we're done
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return False
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else:
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self.logger.info('Sent Pushed 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 sending Pushed notification.')
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self.logger.debug('Socket Exception: %s' % str(e))
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# Return; we're done
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return False
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return True
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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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# Our URL parameters
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params = self.url_parameters(privacy=privacy, *args, **kwargs)
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return '{schema}://{app_key}/{app_secret}/{targets}/?{params}'.format(
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schema=self.secure_protocol,
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app_key=self.pprint(self.app_key, privacy, safe=''),
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app_secret=self.pprint(
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self.app_secret, privacy, mode=PrivacyMode.Secret, safe=''),
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targets='/'.join(
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[NotifyPushed.quote(x) for x in chain(
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# Channels are prefixed with a pound/hashtag symbol
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['#{}'.format(x) for x in self.channels],
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# Users are prefixed with an @ symbol
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['@{}'.format(x) for x in self.users],
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)]),
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params=NotifyPushed.urlencode(params))
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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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targets = len(self.channels) + len(self.users)
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return targets if targets > 0 else 1
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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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# The first token is stored in the hostname
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app_key = NotifyPushed.unquote(results['host'])
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entries = NotifyPushed.split_path(results['fullpath'])
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# Now fetch the remaining tokens
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try:
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app_secret = entries.pop(0)
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except IndexError:
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# Force some bad values that will get caught
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# in parsing later
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app_secret = None
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app_key = None
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# Get our recipients (based on remaining entries)
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results['targets'] = entries
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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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NotifyPushed.parse_list(results['qsd']['to'])
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results['app_key'] = app_key
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results['app_secret'] = app_secret
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return results
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