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375 lines
12 KiB
375 lines
12 KiB
# -*- coding: utf-8 -*-
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# BSD 2-Clause License
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#
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# Apprise - Push Notification Library.
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# Copyright (c) 2024, Chris Caron <lead2gold@gmail.com>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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import requests
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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 ..AppriseLocale import gettext_lazy as _
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class NotifyNextcloud(NotifyBase):
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"""
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A wrapper for Nextcloud Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'Nextcloud'
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# The services URL
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service_url = 'https://nextcloud.com/'
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# Insecure protocol (for those self hosted requests)
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protocol = 'ncloud'
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# The default protocol (this is secure for notica)
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secure_protocol = 'nclouds'
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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_nextcloud'
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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}://{host}/{targets}',
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'{schema}://{host}:{port}/{targets}',
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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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},
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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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'target_user': {
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'name': _('Target User'),
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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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# Nextcloud uses different API end points depending on the version
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# being used however the (API) payload remains the same. Allow users
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# to specify the version they are using:
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'version': {
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'name': _('Version'),
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'type': 'int',
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'min': 1,
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'default': 21,
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},
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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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'to': {
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'alias_of': 'targets',
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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, version=None, headers=None,
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url_prefix=None, **kwargs):
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"""
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Initialize Nextcloud Object
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"""
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super().__init__(**kwargs)
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# Store our targets
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self.targets = parse_list(targets)
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self.version = self.template_args['version']['default']
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if version is not None:
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try:
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self.version = int(version)
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if self.version < self.template_args['version']['min']:
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# Let upper exception handle this
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raise ValueError()
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except (ValueError, TypeError):
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msg = 'At invalid Nextcloud version ({}) was specified.'\
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.format(version)
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self.logger.warning(msg)
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raise TypeError(msg)
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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 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('There were no Nextcloud 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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}
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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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payload = {
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'shortMessage': title if title else self.app_desc,
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}
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if body:
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# Only store the longMessage if a body was defined; nextcloud
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# doesn't take kindly to empty longMessage entries.
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payload['longMessage'] = body
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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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# Nextcloud URL based on version used
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notify_url = '{schema}://{host}/{url_prefix}/ocs/v2.php/'\
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'apps/admin_notifications/' \
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'api/v1/notifications/{target}' \
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if self.version < 21 else \
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'{schema}://{host}/{url_prefix}/ocs/v2.php/'\
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'apps/notifications/'\
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'api/v2/admin_notifications/{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 v%d POST URL: %s (cert_verify=%r)',
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self.version, notify_url, self.verify_certificate)
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self.logger.debug(
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'Nextcloud v%d Payload: %s',
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self.version, 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=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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NotifyNextcloud.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 v{} notification:'
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'{}{}error={}.'.format(
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self.version,
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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 %d notification.', self.version)
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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 v%d'
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'notification.', self.version)
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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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# Create URL parameters from our headers
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params = {'+{}'.format(k): v for k, v in self.headers.items()}
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# Set our version
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params['version'] = str(self.version)
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if self.url_prefix:
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params['url_prefix'] = self.url_prefix
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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=NotifyNextcloud.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=NotifyNextcloud.quote(self.user, 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([NotifyNextcloud.quote(x)
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for x in self.targets]),
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params=NotifyNextcloud.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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NotifyNextcloud.split_path(results['fullpath'])
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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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NotifyNextcloud.parse_list(results['qsd']['to'])
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# Allow users to over-ride the Nextcloud version being used
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if 'version' in results['qsd'] and len(results['qsd']['version']):
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results['version'] = \
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NotifyNextcloud.unquote(results['qsd']['version'])
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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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NotifyNextcloud.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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NotifyNextcloud.unquote(x): NotifyNextcloud.unquote(y)
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for x, y in results['qsd+'].items()}
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return results
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