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372 lines
12 KiB
Python
372 lines
12 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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# Create an incoming webhook; the website will provide you with something like:
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# http://localhost:8065/hooks/yobjmukpaw3r3urc5h6i369yima
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# ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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# |-- this is the webhook --|
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#
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# You can effectively turn the url above to read this:
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# mmost://localhost:8065/yobjmukpaw3r3urc5h6i369yima
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# - swap http with mmost
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# - drop /hooks/ reference
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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 ..common import NotifyImageSize
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from ..common import NotifyType
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from ..utils import parse_bool
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from ..utils import parse_list
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from ..utils import validate_regex
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from ..locale import gettext_lazy as _
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# Some Reference Locations:
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# - https://docs.mattermost.com/developer/webhooks-incoming.html
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# - https://docs.mattermost.com/administration/config-settings.html
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class NotifyMattermost(NotifyBase):
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"""
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A wrapper for Mattermost Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'Mattermost'
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# The services URL
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service_url = 'https://mattermost.com/'
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# The default protocol
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protocol = 'mmost'
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# The default secure protocol
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secure_protocol = 'mmosts'
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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_mattermost'
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# The default Mattermost port
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default_port = 8065
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# Allows the user to specify the NotifyImageSize object
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image_size = NotifyImageSize.XY_72
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# The maximum allowable characters allowed in the body per message
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body_maxlen = 4000
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# Mattermost does not have a title
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title_maxlen = 0
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# Define object templates
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templates = (
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'{schema}://{host}/{token}',
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'{schema}://{host}:{port}/{token}',
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'{schema}://{host}/{fullpath}/{token}',
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'{schema}://{host}:{port}/{fullpath}/{token}',
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'{schema}://{botname}@{host}/{token}',
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'{schema}://{botname}@{host}:{port}/{token}',
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'{schema}://{botname}@{host}/{fullpath}/{token}',
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'{schema}://{botname}@{host}:{port}/{fullpath}/{token}',
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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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'token': {
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'name': _('Webhook 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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'fullpath': {
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'name': _('Path'),
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'type': 'string',
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},
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'botname': {
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'name': _('Bot Name'),
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'type': 'string',
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'map_to': 'user',
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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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})
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# Define our template arguments
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template_args = dict(NotifyBase.template_args, **{
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'channels': {
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'name': _('Channels'),
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'type': 'list:string',
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},
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'image': {
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'name': _('Include Image'),
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'type': 'bool',
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'default': True,
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'map_to': 'include_image',
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},
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'to': {
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'alias_of': 'channels',
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},
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})
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def __init__(self, token, fullpath=None, channels=None,
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include_image=False, **kwargs):
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"""
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Initialize Mattermost Object
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"""
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super().__init__(**kwargs)
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if self.secure:
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self.schema = 'https'
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else:
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self.schema = 'http'
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# our full path
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self.fullpath = '' if not isinstance(
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fullpath, str) else fullpath.strip()
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# Authorization Token (associated with project)
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self.token = validate_regex(token)
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if not self.token:
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msg = 'An invalid Mattermost Authorization Token ' \
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'({}) was specified.'.format(token)
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self.logger.warning(msg)
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raise TypeError(msg)
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# Optional Channels (strip off any channel prefix entries if present)
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self.channels = [x.lstrip('#') for x in parse_list(channels)]
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if not self.port:
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self.port = self.default_port
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# Place a thumbnail image inline with the message body
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self.include_image = include_image
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return
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def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
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"""
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Perform Mattermost Notification
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"""
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# Create a copy of our channels, otherwise place a dummy entry
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channels = list(self.channels) if self.channels else [None, ]
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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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# prepare JSON Object
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payload = {
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'text': body,
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'icon_url': None,
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}
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# Acquire our image url if configured to do so
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image_url = None if not self.include_image \
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else self.image_url(notify_type)
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if image_url:
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# Set our image configuration if told to do so
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payload['icon_url'] = image_url
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# Set our user
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payload['username'] = self.user if self.user else self.app_id
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# For error tracking
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has_error = False
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while len(channels):
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# Pop a channel off of the list
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channel = channels.pop(0)
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if channel:
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payload['channel'] = channel
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url = '{}://{}:{}{}/hooks/{}'.format(
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self.schema, self.host, self.port, self.fullpath,
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self.token)
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self.logger.debug('Mattermost 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('Mattermost 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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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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NotifyMattermost.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 Mattermost notification{}: '
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'{}{}error={}.'.format(
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'' if not channel
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else ' to channel {}'.format(channel),
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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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# Flag our error
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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 Mattermost notification{}.'.format(
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'' if not channel
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else ' to channel {}'.format(channel)))
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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 Mattermost '
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'notification{}.'.format(
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'' if not channel
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else ' to channel {}'.format(channel)))
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self.logger.debug('Socket Exception: %s' % str(e))
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# Flag our error
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has_error = True
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continue
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# Return our overall status
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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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# Define any URL parameters
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params = {
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'image': 'yes' if self.include_image else 'no',
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}
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# Extend our parameters
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params.update(self.url_parameters(privacy=privacy, *args, **kwargs))
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if self.channels:
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# historically the value only accepted one channel and is
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# therefore identified as 'channel'. Channels have always been
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# optional, so that is why this setting is nested in an if block
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params['channel'] = ','.join(
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[NotifyMattermost.quote(x, safe='') for x in self.channels])
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default_port = 443 if self.secure else self.default_port
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default_schema = self.secure_protocol if self.secure else self.protocol
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# Determine if there is a botname present
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botname = ''
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if self.user:
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botname = '{botname}@'.format(
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botname=NotifyMattermost.quote(self.user, safe=''),
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)
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return \
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'{schema}://{botname}{hostname}{port}{fullpath}{token}' \
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'/?{params}'.format(
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schema=default_schema,
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botname=botname,
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# never encode hostname since we're expecting it to be a valid
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# 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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NotifyMattermost.quote(self.fullpath, safe='/')),
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token=self.pprint(self.token, privacy, safe=''),
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params=NotifyMattermost.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)
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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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# Acquire our tokens; the last one will always be our token
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# all entries before it will be our path
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tokens = NotifyMattermost.split_path(results['fullpath'])
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results['token'] = None if not tokens else tokens.pop()
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# Store our path
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results['fullpath'] = '' if not tokens \
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else '/{}'.format('/'.join(tokens))
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# Define our optional list of channels to notify
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results['channels'] = list()
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# Support both 'to' (for yaml configuration) and channel=
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if 'to' in results['qsd'] and len(results['qsd']['to']):
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# Allow the user to specify the channel to post to
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results['channels'].append(
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NotifyMattermost.parse_list(results['qsd']['to']))
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if 'channel' in results['qsd'] and len(results['qsd']['channel']):
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# Allow the user to specify the channel to post to
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results['channels'].append(
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NotifyMattermost.parse_list(results['qsd']['channel']))
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# Image manipulation
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results['include_image'] = \
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parse_bool(results['qsd'].get('image', False))
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return results
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