# -*- coding: utf-8 -*-
# BSD 2-Clause License
#
# Apprise - Push Notification Library.
# Copyright (c) 2023, Chris Caron <lead2gold@gmail.com>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# Create an incoming webhook; the website will provide you with something like:
# http://localhost:8065/hooks/yobjmukpaw3r3urc5h6i369yima
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^
# |-- this is the webhook --|
#
# You can effectively turn the url above to read this:
# mmost://localhost:8065/yobjmukpaw3r3urc5h6i369yima
# - swap http with mmost
# - drop /hooks/ reference
import requests
from json import dumps
from .NotifyBase import NotifyBase
from ..common import NotifyImageSize
from ..common import NotifyType
from ..utils import parse_bool
from ..utils import parse_list
from ..utils import validate_regex
from ..AppriseLocale import gettext_lazy as _
# Some Reference Locations:
# - https://docs.mattermost.com/developer/webhooks-incoming.html
# - https://docs.mattermost.com/administration/config-settings.html
class NotifyMattermost(NotifyBase):
"""
A wrapper for Mattermost Notifications
"""
# The default descriptive name associated with the Notification
service_name = 'Mattermost'
# The services URL
service_url = 'https://mattermost.com/'
# The default protocol
protocol = 'mmost'
# The default secure protocol
secure_protocol = 'mmosts'
# A URL that takes you to the setup/help of the specific protocol
setup_url = 'https://github.com/caronc/apprise/wiki/Notify_mattermost'
# The default Mattermost port
default_port = 8065
# Allows the user to specify the NotifyImageSize object
image_size = NotifyImageSize.XY_72
# The maximum allowable characters allowed in the body per message
body_maxlen = 4000
# Mattermost does not have a title
title_maxlen = 0
# Define object templates
templates = (
'{schema}://{host}/{token}',
'{schema}://{host}:{port}/{token}',
'{schema}://{host}/{fullpath}/{token}',
'{schema}://{host}:{port}/{fullpath}/{token}',
'{schema}://{botname}@{host}/{token}',
'{schema}://{botname}@{host}:{port}/{token}',
'{schema}://{botname}@{host}/{fullpath}/{token}',
'{schema}://{botname}@{host}:{port}/{fullpath}/{token}',
)
# Define our template tokens
template_tokens = dict(NotifyBase.template_tokens, **{
'host': {
'name': _('Hostname'),
'type': 'string',
'required': True,
},
'token': {
'name': _('Webhook Token'),
'type': 'string',
'private': True,
'required': True,
},
'fullpath': {
'name': _('Path'),
'type': 'string',
},
'botname': {
'name': _('Bot Name'),
'type': 'string',
'map_to': 'user',
},
'port': {
'name': _('Port'),
'type': 'int',
'min': 1,
'max': 65535,
},
})
# Define our template arguments
template_args = dict(NotifyBase.template_args, **{
'channels': {
'name': _('Channels'),
'type': 'list:string',
},
'image': {
'name': _('Include Image'),
'type': 'bool',
'default': True,
'map_to': 'include_image',
},
'to': {
'alias_of': 'channels',
},
})
def __init__(self, token, fullpath=None, channels=None,
include_image=False, **kwargs):
"""
Initialize Mattermost Object
"""
super().__init__(**kwargs)
if self.secure:
self.schema = 'https'
else:
self.schema = 'http'
# our full path
self.fullpath = '' if not isinstance(
fullpath, str) else fullpath.strip()
# Authorization Token (associated with project)
self.token = validate_regex(token)
if not self.token:
msg = 'An invalid Mattermost Authorization Token ' \
'({}) was specified.'.format(token)
self.logger.warning(msg)
raise TypeError(msg)
# Optional Channels (strip off any channel prefix entries if present)
self.channels = [x.lstrip('#') for x in parse_list(channels)]
if not self.port:
self.port = self.default_port
# Place a thumbnail image inline with the message body
self.include_image = include_image
return
def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
"""
Perform Mattermost Notification
"""
# Create a copy of our channels, otherwise place a dummy entry
channels = list(self.channels) if self.channels else [None, ]
headers = {
'User-Agent': self.app_id,
'Content-Type': 'application/json'
}
# prepare JSON Object
payload = {
'text': body,
'icon_url': None,
}
# Acquire our image url if configured to do so
image_url = None if not self.include_image \
else self.image_url(notify_type)
if image_url:
# Set our image configuration if told to do so
payload['icon_url'] = image_url
# Set our user
payload['username'] = self.user if self.user else self.app_id
# For error tracking
has_error = False
while len(channels):
# Pop a channel off of the list
channel = channels.pop(0)
if channel:
payload['channel'] = channel
url = '{}://{}:{}{}/hooks/{}'.format(
self.schema, self.host, self.port, self.fullpath,
self.token)
self.logger.debug('Mattermost POST URL: %s (cert_verify=%r)' % (
url, self.verify_certificate,
))
self.logger.debug('Mattermost Payload: %s' % str(payload))
# Always call throttle before any remote server i/o is made
self.throttle()
try:
r = requests.post(
url,
data=dumps(payload),
headers=headers,
verify=self.verify_certificate,
timeout=self.request_timeout,
)
if r.status_code != requests.codes.ok:
# We had a problem
status_str = \
NotifyMattermost.http_response_code_lookup(
r.status_code)
self.logger.warning(
'Failed to send Mattermost notification{}: '
'{}{}error={}.'.format(
'' if not channel
else ' to channel {}'.format(channel),
status_str,
', ' if status_str else '',
r.status_code))
self.logger.debug(
'Response Details:\r\n{}'.format(r.content))
# Flag our error
has_error = True
continue
else:
self.logger.info(
'Sent Mattermost notification{}.'.format(
'' if not channel
else ' to channel {}'.format(channel)))
except requests.RequestException as e:
self.logger.warning(
'A Connection error occurred sending Mattermost '
'notification{}.'.format(
'' if not channel
else ' to channel {}'.format(channel)))
self.logger.debug('Socket Exception: %s' % str(e))
# Flag our error
has_error = True
continue
# Return our overall status
return not has_error
def url(self, privacy=False, *args, **kwargs):
"""
Returns the URL built dynamically based on specified arguments.
"""
# Define any URL parameters
params = {
'image': 'yes' if self.include_image else 'no',
}
# Extend our parameters
params.update(self.url_parameters(privacy=privacy, *args, **kwargs))
if self.channels:
# historically the value only accepted one channel and is
# therefore identified as 'channel'. Channels have always been
# optional, so that is why this setting is nested in an if block
params['channel'] = ','.join(
[NotifyMattermost.quote(x, safe='') for x in self.channels])
default_port = 443 if self.secure else self.default_port
default_schema = self.secure_protocol if self.secure else self.protocol
# Determine if there is a botname present
botname = ''
if self.user:
botname = '{botname}@'.format(
botname=NotifyMattermost.quote(self.user, safe=''),
)
return \
'{schema}://{botname}{hostname}{port}{fullpath}{token}' \
'/?{params}'.format(
schema=default_schema,
botname=botname,
# never encode hostname since we're expecting it to be a valid
# one
hostname=self.host,
port='' if not self.port or self.port == default_port
else ':{}'.format(self.port),
fullpath='/' if not self.fullpath else '{}/'.format(
NotifyMattermost.quote(self.fullpath, safe='/')),
token=self.pprint(self.token, privacy, safe=''),
params=NotifyMattermost.urlencode(params),
)
@staticmethod
def parse_url(url):
"""
Parses the URL and returns enough arguments that can allow
us to re-instantiate this object.
"""
results = NotifyBase.parse_url(url)
if not results:
# We're done early as we couldn't load the results
return results
# Acquire our tokens; the last one will always be our token
# all entries before it will be our path
tokens = NotifyMattermost.split_path(results['fullpath'])
results['token'] = None if not tokens else tokens.pop()
# Store our path
results['fullpath'] = '' if not tokens \
else '/{}'.format('/'.join(tokens))
# Define our optional list of channels to notify
results['channels'] = list()
# Support both 'to' (for yaml configuration) and channel=
if 'to' in results['qsd'] and len(results['qsd']['to']):
# Allow the user to specify the channel to post to
results['channels'].append(
NotifyMattermost.parse_list(results['qsd']['to']))
if 'channel' in results['qsd'] and len(results['qsd']['channel']):
# Allow the user to specify the channel to post to
results['channels'].append(
NotifyMattermost.parse_list(results['qsd']['channel']))
# Image manipulation
results['include_image'] = \
parse_bool(results['qsd'].get('image', False))
return results