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329 lines
11 KiB
Python
329 lines
11 KiB
Python
# -*- 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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import requests
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from json import dumps
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from .base import NotifyBase
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from ..url import PrivacyMode
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from ..common import NotifyType
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from ..utils import parse_list
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from ..locale import gettext_lazy as _
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class NotifyNextcloudTalk(NotifyBase):
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"""
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A wrapper for Nextcloud Talk Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = _('Nextcloud Talk')
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# The services URL
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service_url = 'https://nextcloud.com/talk'
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# Insecure protocol (for those self hosted requests)
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protocol = 'nctalk'
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# The default protocol (this is secure for notica)
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secure_protocol = 'nctalks'
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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_nextcloudtalk'
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# Nextcloud title length
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title_maxlen = 255
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# Defines the maximum allowable characters per message.
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body_maxlen = 4000
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# Define object templates
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templates = (
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'{schema}://{user}:{password}@{host}/{targets}',
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'{schema}://{user}:{password}@{host}:{port}/{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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'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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'required': True,
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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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'required': True,
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},
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'target_room_id': {
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'name': _('Room ID'),
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'type': 'string',
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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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'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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'url_prefix': {
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'name': _('URL Prefix'),
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'type': 'string',
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},
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})
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# Define any kwargs we're using
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template_kwargs = {
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'headers': {
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'name': _('HTTP Header'),
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'prefix': '+',
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},
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}
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def __init__(self, targets=None, headers=None, url_prefix=None, **kwargs):
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"""
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Initialize Nextcloud Talk Object
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"""
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super().__init__(**kwargs)
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if self.user is None or self.password is None:
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msg = 'User and password have to be specified.'
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self.logger.warning(msg)
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raise TypeError(msg)
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# Store our targets
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self.targets = parse_list(targets)
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# Support URL Prefix
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self.url_prefix = '' if not url_prefix \
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else url_prefix.strip('/')
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self.headers = {}
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if headers:
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# Store our extra headers
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self.headers.update(headers)
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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 Nextcloud Talk Notification
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"""
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if len(self.targets) == 0:
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# There were no services to notify
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self.logger.warning(
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'There were no Nextcloud Talk targets to notify.')
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return False
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# Prepare our Header
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headers = {
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'User-Agent': self.app_id,
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'OCS-APIRequest': 'true',
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'Accept': 'application/json',
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'Content-Type': 'application/json',
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}
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# Apply any/all header over-rides defined
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headers.update(self.headers)
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# error tracking (used for function return)
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has_error = False
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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)
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# Prepare our Payload
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if not body:
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payload = {
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'message': title if title else self.app_desc,
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}
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else:
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payload = {
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'message': title + '\r\n' + body
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if title else self.app_desc + '\r\n' + body,
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}
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# Nextcloud Talk URL
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notify_url = '{schema}://{host}/{url_prefix}'\
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'/ocs/v2.php/apps/spreed/api/v1/chat/{target}'
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notify_url = notify_url.format(
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schema='https' if self.secure else 'http',
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host=self.host if not isinstance(self.port, int)
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else '{}:{}'.format(self.host, self.port),
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url_prefix=self.url_prefix,
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target=target,
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)
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self.logger.debug(
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'Nextcloud Talk POST URL: %s (cert_verify=%r)',
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notify_url, self.verify_certificate)
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self.logger.debug(
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'Nextcloud Talk Payload: %s',
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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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notify_url,
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data=dumps(payload),
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headers=headers,
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auth=(self.user, self.password),
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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 not in (
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requests.codes.created, requests.codes.ok):
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# We had a problem
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status_str = \
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NotifyNextcloudTalk.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 Nextcloud Talk 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(
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'Response Details:\r\n{}'.format(r.content))
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# track our failure
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has_error = True
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continue
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else:
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self.logger.info(
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'Sent Nextcloud Talk 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 Nextcloud Talk '
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'notification.')
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self.logger.debug('Socket Exception: %s' % str(e))
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# track our failure
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has_error = True
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continue
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return not has_error
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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 default set of parameters
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params = self.url_parameters(privacy=privacy, *args, **kwargs)
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# Append our headers into our parameters
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params.update({'+{}'.format(k): v for k, v in self.headers.items()})
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if self.url_prefix:
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params['url_prefix'] = self.url_prefix
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# Determine Authentication
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auth = '{user}:{password}@'.format(
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user=NotifyNextcloudTalk.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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default_port = 443 if self.secure else 80
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return '{schema}://{auth}{hostname}{port}/{targets}?{params}' \
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.format(
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schema=self.secure_protocol
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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
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# valid one
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hostname=self.host,
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port='' if self.port is None or self.port == default_port
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else ':{}'.format(self.port),
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targets='/'.join([NotifyNextcloudTalk.quote(x)
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for x in self.targets]),
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params=NotifyNextcloudTalk.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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targets = len(self.targets)
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return targets if targets 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)
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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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# Fetch our targets
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results['targets'] = \
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NotifyNextcloudTalk.split_path(results['fullpath'])
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# Support URL Prefixes
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if 'url_prefix' in results['qsd'] \
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and len(results['qsd']['url_prefix']):
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results['url_prefix'] = \
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NotifyNextcloudTalk.unquote(results['qsd']['url_prefix'])
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# Add our headers that the user can potentially over-ride if they wish
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# to to our returned result set and tidy entries by unquoting them
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results['headers'] = {
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NotifyNextcloudTalk.unquote(x): NotifyNextcloudTalk.unquote(y)
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for x, y in results['qsd+'].items()}
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return results
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