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318 lines
11 KiB
318 lines
11 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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# You must generate a "Long-Lived Access Token". This can be done from your
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# Home Assistant Profile page.
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import requests
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from json import dumps
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from uuid import uuid4
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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 validate_regex
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from ..AppriseLocale import gettext_lazy as _
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class NotifyHomeAssistant(NotifyBase):
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"""
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A wrapper for Home Assistant Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'HomeAssistant'
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# The services URL
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service_url = 'https://www.home-assistant.io/'
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# Insecure Protocol Access
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protocol = 'hassio'
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# Secure Protocol
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secure_protocol = 'hassios'
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# Default to Home Assistant Default Insecure port of 8123 instead of 80
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default_insecure_port = 8123
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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_homeassistant'
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# Define object templates
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templates = (
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'{schema}://{host}/{accesstoken}',
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'{schema}://{host}:{port}/{accesstoken}',
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'{schema}://{user}@{host}/{accesstoken}',
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'{schema}://{user}@{host}:{port}/{accesstoken}',
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'{schema}://{user}:{password}@{host}/{accesstoken}',
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'{schema}://{user}:{password}@{host}:{port}/{accesstoken}',
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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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'host': {
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'name': _('Hostname'),
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'type': 'string',
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'required': True,
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},
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'port': {
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'name': _('Port'),
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'type': 'int',
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'min': 1,
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'max': 65535,
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},
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'user': {
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'name': _('Username'),
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'type': 'string',
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},
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'password': {
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'name': _('Password'),
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'type': 'string',
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'private': True,
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},
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'accesstoken': {
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'name': _('Long-Lived Access 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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})
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# Define our template arguments
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template_args = dict(NotifyBase.template_args, **{
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'nid': {
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# Optional Unique Notification ID
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'name': _('Notification ID'),
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'type': 'string',
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'regex': (r'^[a-z0-9_-]+$', 'i'),
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},
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})
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def __init__(self, accesstoken, nid=None, **kwargs):
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"""
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Initialize Home Assistant Object
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"""
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super().__init__(**kwargs)
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self.fullpath = kwargs.get('fullpath', '')
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if not (self.secure or self.port):
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# Use default insecure port
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self.port = self.default_insecure_port
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# Long-Lived Access token (generated from User Profile)
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self.accesstoken = validate_regex(accesstoken)
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if not self.accesstoken:
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msg = 'An invalid Home Assistant Long-Lived Access Token ' \
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'({}) was specified.'.format(accesstoken)
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self.logger.warning(msg)
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raise TypeError(msg)
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# An Optional Notification Identifier
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self.nid = None
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if nid:
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self.nid = validate_regex(
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nid, *self.template_args['nid']['regex'])
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if not self.nid:
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msg = 'An invalid Home Assistant Notification Identifier ' \
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'({}) was specified.'.format(nid)
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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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Sends Message
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"""
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# Prepare our persistent_notification.create payload
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payload = {
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'title': title,
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'message': body,
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# Use a unique ID so we don't over-write the last message
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# we posted. Otherwise use the notification id specified
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'notification_id': self.nid if self.nid else str(uuid4()),
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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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'Content-Type': 'application/json',
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'Authorization': 'Bearer {}'.format(self.accesstoken),
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}
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auth = None
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if self.user:
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auth = (self.user, self.password)
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# Set our schema
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schema = 'https' if self.secure else 'http'
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url = '{}://{}'.format(schema, self.host)
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if isinstance(self.port, int):
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url += ':%d' % self.port
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url += '' if not self.fullpath else '/' + self.fullpath.strip('/')
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url += '/api/services/persistent_notification/create'
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self.logger.debug('Home Assistant POST URL: %s (cert_verify=%r)' % (
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url, self.verify_certificate,
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))
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self.logger.debug('Home Assistant 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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url,
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data=dumps(payload),
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headers=headers,
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auth=auth,
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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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NotifyHomeAssistant.http_response_code_lookup(
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r.status_code)
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self.logger.warning(
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'Failed to send Home Assistant 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 Home Assistant 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 Home Assistant '
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'notification to %s.' % self.host)
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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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# Define any URL parameters
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params = {}
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if self.nid:
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params['nid'] = self.nid
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# Extend our parameters
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params.update(self.url_parameters(privacy=privacy, *args, **kwargs))
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# Determine Authentication
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auth = ''
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if self.user and self.password:
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auth = '{user}:{password}@'.format(
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user=NotifyHomeAssistant.quote(self.user, safe=''),
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password=self.pprint(
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self.password, privacy, mode=PrivacyMode.Secret, safe=''),
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)
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elif self.user:
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auth = '{user}@'.format(
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user=NotifyHomeAssistant.quote(self.user, safe=''),
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)
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default_port = 443 if self.secure else self.default_insecure_port
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url = '{schema}://{auth}{hostname}{port}{fullpath}' \
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'{accesstoken}/?{params}'
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return url.format(
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schema=self.secure_protocol if self.secure else self.protocol,
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auth=auth,
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# never encode hostname since we're expecting it to be a valid one
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hostname=self.host,
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port='' if not self.port or self.port == default_port
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else ':{}'.format(self.port),
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fullpath='/' if not self.fullpath else '/{}/'.format(
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NotifyHomeAssistant.quote(self.fullpath.strip('/'), safe='/')),
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accesstoken=self.pprint(self.accesstoken, privacy, safe=''),
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params=NotifyHomeAssistant.urlencode(params),
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)
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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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# Get our Long-Lived Access Token
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if 'accesstoken' in results['qsd'] and \
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len(results['qsd']['accesstoken']):
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results['accesstoken'] = \
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NotifyHomeAssistant.unquote(results['qsd']['accesstoken'])
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else:
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# Acquire our full path
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fullpath = NotifyHomeAssistant.split_path(results['fullpath'])
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# Otherwise pop the last element from our path to be it
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results['accesstoken'] = fullpath.pop() if fullpath else None
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# Re-assemble our full path
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results['fullpath'] = '/'.join(fullpath)
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# Allow the specification of a unique notification_id so that
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# it will always replace the last one sent.
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if 'nid' in results['qsd'] and len(results['qsd']['nid']):
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results['nid'] = \
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NotifyHomeAssistant.unquote(results['qsd']['nid'])
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return results
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