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bazarr/libs/apprise/plugins/NotifyMatrix.py

1456 lines
48 KiB

# -*- 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.
# Great sources
# - https://github.com/matrix-org/matrix-python-sdk
# - https://github.com/matrix-org/synapse/blob/master/docs/reverse_proxy.rst
#
import re
import requests
from markdown import markdown
from json import dumps
from json import loads
from time import time
from .NotifyBase import NotifyBase
from ..URLBase import PrivacyMode
from ..common import NotifyType
from ..common import NotifyImageSize
from ..common import NotifyFormat
from ..utils import parse_bool
from ..utils import parse_list
from ..utils import is_hostname
from ..utils import validate_regex
from ..AppriseLocale import gettext_lazy as _
# Define default path
MATRIX_V1_WEBHOOK_PATH = '/api/v1/matrix/hook'
MATRIX_V2_API_PATH = '/_matrix/client/r0'
MATRIX_V3_API_PATH = '/_matrix/client/v3'
MATRIX_V3_MEDIA_PATH = '/_matrix/media/v3'
MATRIX_V2_MEDIA_PATH = '/_matrix/media/r0'
# Extend HTTP Error Messages
MATRIX_HTTP_ERROR_MAP = {
403: 'Unauthorized - Invalid Token.',
429: 'Rate limit imposed; wait 2s and try again',
}
# Matrix Room Syntax
IS_ROOM_ALIAS = re.compile(
r'^\s*(#|%23)?(?P<room>[a-z0-9-]+)((:|%3A)'
r'(?P<home_server>[a-z0-9.-]+))?\s*$', re.I)
# Room ID MUST start with an exclamation to avoid ambiguity
IS_ROOM_ID = re.compile(
r'^\s*(!|&#33;|%21)(?P<room>[a-z0-9-]+)((:|%3A)'
r'(?P<home_server>[a-z0-9.-]+))?\s*$', re.I)
class MatrixMessageType:
"""
The Matrix Message types
"""
TEXT = "text"
NOTICE = "notice"
# matrix message types are placed into this list for validation purposes
MATRIX_MESSAGE_TYPES = (
MatrixMessageType.TEXT,
MatrixMessageType.NOTICE,
)
class MatrixVersion:
# Version 2
V2 = "2"
# Version 3
V3 = "3"
# webhook modes are placed into this list for validation purposes
MATRIX_VERSIONS = (
MatrixVersion.V2,
MatrixVersion.V3,
)
class MatrixWebhookMode:
# Webhook Mode is disabled
DISABLED = "off"
# The default webhook mode is to just be set to Matrix
MATRIX = "matrix"
# Support the slack webhook plugin
SLACK = "slack"
# Support the t2bot webhook plugin
T2BOT = "t2bot"
# webhook modes are placed into this list for validation purposes
MATRIX_WEBHOOK_MODES = (
MatrixWebhookMode.DISABLED,
MatrixWebhookMode.MATRIX,
MatrixWebhookMode.SLACK,
MatrixWebhookMode.T2BOT,
)
class NotifyMatrix(NotifyBase):
"""
A wrapper for Matrix Notifications
"""
# The default descriptive name associated with the Notification
service_name = 'Matrix'
# The services URL
service_url = 'https://matrix.org/'
# The default protocol
protocol = 'matrix'
# The default secure protocol
secure_protocol = 'matrixs'
# Support Attachments
attachment_support = True
# A URL that takes you to the setup/help of the specific protocol
setup_url = 'https://github.com/caronc/apprise/wiki/Notify_matrix'
# Allows the user to specify the NotifyImageSize object
image_size = NotifyImageSize.XY_32
# The maximum allowable characters allowed in the body per message
# https://spec.matrix.org/v1.6/client-server-api/#size-limits
# The complete event MUST NOT be larger than 65536 bytes, when formatted
# with the federation event format, including any signatures, and encoded
# as Canonical JSON.
#
# To gracefully allow for some overhead' we'll define a max body length
# of just slighty lower then the limit of the full message itself.
body_maxlen = 65000
# Throttle a wee-bit to avoid thrashing
request_rate_per_sec = 0.5
# Our Matrix API Version
matrix_api_version = '3'
# How many retry attempts we'll make in the event the server asks us to
# throttle back.
default_retries = 2
# The number of micro seconds to wait if we get a 429 error code and
# the server doesn't remind us how long we shoul wait for
default_wait_ms = 1000
# Define object templates
templates = (
# Targets are ignored when using t2bot mode; only a token is required
'{schema}://{token}',
'{schema}://{user}@{token}',
# Disabled webhook
'{schema}://{user}:{password}@{host}/{targets}',
'{schema}://{user}:{password}@{host}:{port}/{targets}',
# Webhook mode
'{schema}://{user}:{token}@{host}/{targets}',
'{schema}://{user}:{token}@{host}:{port}/{targets}',
)
# Define our template tokens
template_tokens = dict(NotifyBase.template_tokens, **{
'host': {
'name': _('Hostname'),
'type': 'string',
},
'port': {
'name': _('Port'),
'type': 'int',
'min': 1,
'max': 65535,
},
'user': {
'name': _('Username'),
'type': 'string',
},
'password': {
'name': _('Password'),
'type': 'string',
'private': True,
},
'token': {
'name': _('Access Token'),
'private': True,
'map_to': 'password',
},
'target_user': {
'name': _('Target User'),
'type': 'string',
'prefix': '@',
'map_to': 'targets',
},
'target_room_id': {
'name': _('Target Room ID'),
'type': 'string',
'prefix': '!',
'map_to': 'targets',
},
'target_room_alias': {
'name': _('Target Room Alias'),
'type': 'string',
'prefix': '!',
'map_to': 'targets',
},
'targets': {
'name': _('Targets'),
'type': 'list:string',
},
})
# Define our template arguments
template_args = dict(NotifyBase.template_args, **{
'image': {
'name': _('Include Image'),
'type': 'bool',
'default': False,
'map_to': 'include_image',
},
'mode': {
'name': _('Webhook Mode'),
'type': 'choice:string',
'values': MATRIX_WEBHOOK_MODES,
'default': MatrixWebhookMode.DISABLED,
},
'version': {
'name': _('Matrix API Verion'),
'type': 'choice:string',
'values': MATRIX_VERSIONS,
'default': MatrixVersion.V3,
},
'msgtype': {
'name': _('Message Type'),
'type': 'choice:string',
'values': MATRIX_MESSAGE_TYPES,
'default': MatrixMessageType.TEXT,
},
'to': {
'alias_of': 'targets',
},
'token': {
'alias_of': 'token',
},
})
def __init__(self, targets=None, mode=None, msgtype=None, version=None,
include_image=False, **kwargs):
"""
Initialize Matrix Object
"""
super().__init__(**kwargs)
# Prepare a list of rooms to connect and notify
self.rooms = parse_list(targets)
# our home server gets populated after a login/registration
self.home_server = None
# our user_id gets populated after a login/registration
self.user_id = None
# This gets initialized after a login/registration
self.access_token = None
# Place an image inline with the message body
self.include_image = include_image
# maintain a lookup of room alias's we already paired with their id
# to speed up future requests
self._room_cache = {}
# Setup our mode
self.mode = self.template_args['mode']['default'] \
if not isinstance(mode, str) else mode.lower()
if self.mode and self.mode not in MATRIX_WEBHOOK_MODES:
msg = 'The mode specified ({}) is invalid.'.format(mode)
self.logger.warning(msg)
raise TypeError(msg)
# Setup our version
self.version = self.template_args['version']['default'] \
if not isinstance(version, str) else version
if self.version not in MATRIX_VERSIONS:
msg = 'The version specified ({}) is invalid.'.format(version)
self.logger.warning(msg)
raise TypeError(msg)
# Setup our message type
self.msgtype = self.template_args['msgtype']['default'] \
if not isinstance(msgtype, str) else msgtype.lower()
if self.msgtype and self.msgtype not in MATRIX_MESSAGE_TYPES:
msg = 'The msgtype specified ({}) is invalid.'.format(msgtype)
self.logger.warning(msg)
raise TypeError(msg)
if self.mode == MatrixWebhookMode.T2BOT:
# t2bot configuration requires that a webhook id is specified
self.access_token = validate_regex(
self.password, r'^[a-z0-9]{64}$', 'i')
if not self.access_token:
msg = 'An invalid T2Bot/Matrix Webhook ID ' \
'({}) was specified.'.format(self.password)
self.logger.warning(msg)
raise TypeError(msg)
elif not is_hostname(self.host):
msg = 'An invalid Matrix Hostname ({}) was specified'\
.format(self.host)
self.logger.warning(msg)
raise TypeError(msg)
else:
# Verify port if specified
if self.port is not None and not (
isinstance(self.port, int)
and self.port >= self.template_tokens['port']['min']
and self.port <= self.template_tokens['port']['max']):
msg = 'An invalid Matrix Port ({}) was specified'\
.format(self.port)
self.logger.warning(msg)
raise TypeError(msg)
def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
"""
Perform Matrix Notification
"""
# Call the _send_ function applicable to whatever mode we're in
# - calls _send_webhook_notification if the mode variable is set
# - calls _send_server_notification if the mode variable is not set
return getattr(self, '_send_{}_notification'.format(
'webhook' if self.mode != MatrixWebhookMode.DISABLED
else 'server'))(
body=body, title=title, notify_type=notify_type, **kwargs)
def _send_webhook_notification(self, body, title='',
notify_type=NotifyType.INFO, **kwargs):
"""
Perform Matrix Notification as a webhook
"""
headers = {
'User-Agent': self.app_id,
'Content-Type': 'application/json',
}
if self.mode != MatrixWebhookMode.T2BOT:
# Acquire our access token from our URL
access_token = self.password if self.password else self.user
default_port = 443 if self.secure else 80
# Prepare our URL
url = '{schema}://{hostname}:{port}{webhook_path}/{token}'.format(
schema='https' if self.secure else 'http',
hostname=self.host,
port='' if self.port is None
or self.port == default_port else self.port,
webhook_path=MATRIX_V1_WEBHOOK_PATH,
token=access_token,
)
else:
#
# t2bot Setup
#
# Prepare our URL
url = 'https://webhooks.t2bot.io/api/v1/matrix/hook/' \
'{token}'.format(token=self.access_token)
# Retrieve our payload
payload = getattr(self, '_{}_webhook_payload'.format(self.mode))(
body=body, title=title, notify_type=notify_type, **kwargs)
self.logger.debug('Matrix POST URL: %s (cert_verify=%r)' % (
url, self.verify_certificate,
))
self.logger.debug('Matrix 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 = \
NotifyMatrix.http_response_code_lookup(
r.status_code, MATRIX_HTTP_ERROR_MAP)
self.logger.warning(
'Failed to send Matrix notification: '
'{}{}error={}.'.format(
status_str,
', ' if status_str else '',
r.status_code))
self.logger.debug('Response Details:\r\n{}'.format(r.content))
# Return; we're done
return False
else:
self.logger.info('Sent Matrix notification.')
except requests.RequestException as e:
self.logger.warning(
'A Connection error occurred sending Matrix notification.'
)
self.logger.debug('Socket Exception: %s' % str(e))
# Return; we're done
return False
return True
def _slack_webhook_payload(self, body, title='',
notify_type=NotifyType.INFO, **kwargs):
"""
Format the payload for a Slack based message
"""
if not hasattr(self, '_re_slack_formatting_rules'):
# Prepare some one-time slack formatting variables
self._re_slack_formatting_map = {
# New lines must become the string version
r'\r\*\n': '\\n',
# Escape other special characters
r'&': '&amp;',
r'<': '&lt;',
r'>': '&gt;',
}
# Iterate over above list and store content accordingly
self._re_slack_formatting_rules = re.compile(
r'(' + '|'.join(self._re_slack_formatting_map.keys()) + r')',
re.IGNORECASE,
)
# Perform Formatting
title = self._re_slack_formatting_rules.sub( # pragma: no branch
lambda x: self._re_slack_formatting_map[x.group()], title,
)
body = self._re_slack_formatting_rules.sub( # pragma: no branch
lambda x: self._re_slack_formatting_map[x.group()], body,
)
# prepare JSON Object
payload = {
'username': self.user if self.user else self.app_id,
# Use Markdown language
'mrkdwn': (self.notify_format == NotifyFormat.MARKDOWN),
'attachments': [{
'title': title,
'text': body,
'color': self.color(notify_type),
'ts': time(),
'footer': self.app_id,
}],
}
return payload
def _matrix_webhook_payload(self, body, title='',
notify_type=NotifyType.INFO, **kwargs):
"""
Format the payload for a Matrix based message
"""
payload = {
'displayName':
self.user if self.user else self.app_id,
'format': 'plain' if self.notify_format == NotifyFormat.TEXT
else 'html',
'text': '',
}
if self.notify_format == NotifyFormat.HTML:
payload['text'] = '{title}{body}'.format(
title='' if not title else '<h1>{}</h1>'.format(
NotifyMatrix.escape_html(title)),
body=body)
elif self.notify_format == NotifyFormat.MARKDOWN:
payload['text'] = '{title}{body}'.format(
title='' if not title else '<h1>{}</h1>'.format(
NotifyMatrix.escape_html(title)),
body=markdown(body))
else: # NotifyFormat.TEXT
payload['text'] = \
body if not title else '{}\r\n{}'.format(title, body)
return payload
def _t2bot_webhook_payload(self, body, title='',
notify_type=NotifyType.INFO, **kwargs):
"""
Format the payload for a T2Bot Matrix based messages
"""
# Retrieve our payload
payload = self._matrix_webhook_payload(
body=body, title=title, notify_type=notify_type, **kwargs)
# Acquire our image url if we're configured to do so
image_url = None if not self.include_image else \
self.image_url(notify_type)
if image_url:
# t2bot can take an avatarUrl Entry
payload['avatarUrl'] = image_url
return payload
def _send_server_notification(self, body, title='',
notify_type=NotifyType.INFO, attach=None,
**kwargs):
"""
Perform Direct Matrix Server Notification (no webhook)
"""
if self.access_token is None:
# We need to register
if not self._login():
if not self._register():
return False
if len(self.rooms) == 0:
# Attempt to retrieve a list of already joined channels
self.rooms = self._joined_rooms()
if len(self.rooms) == 0:
# Nothing to notify
self.logger.warning(
'There were no Matrix rooms specified to notify.')
return False
# Create a copy of our rooms to join and message
rooms = list(self.rooms)
# Initiaize our error tracking
has_error = False
attachments = None
if attach and self.attachment_support:
attachments = self._send_attachments(attach)
if attachments is False:
# take an early exit
return False
while len(rooms) > 0:
# Get our room
room = rooms.pop(0)
# Get our room_id from our response
room_id = self._room_join(room)
if not room_id:
# Notify our user about our failure
self.logger.warning(
'Could not join Matrix room {}.'.format((room)))
# Mark our failure
has_error = True
continue
# Acquire our image url if we're configured to do so
image_url = None if not self.include_image else \
self.image_url(notify_type)
# Build our path
if self.version == MatrixVersion.V3:
path = '/rooms/{}/send/m.room.message/0'.format(
NotifyMatrix.quote(room_id))
else:
path = '/rooms/{}/send/m.room.message'.format(
NotifyMatrix.quote(room_id))
if self.version == MatrixVersion.V2:
#
# Attachments don't work beyond V2 at this time
#
if image_url:
# Define our payload
image_payload = {
'msgtype': 'm.image',
'url': image_url,
'body': '{}'.format(
notify_type if not title else title),
}
# Post our content
postokay, response = self._fetch(
path, payload=image_payload)
if not postokay:
# Mark our failure
has_error = True
continue
if attachments:
for attachment in attachments:
attachment['room_id'] = room_id
attachment['type'] = 'm.room.message'
postokay, response = self._fetch(
path, payload=attachment)
if not postokay:
# Mark our failure
has_error = True
continue
# Define our payload
payload = {
'msgtype': 'm.{}'.format(self.msgtype),
'body': '{title}{body}'.format(
title='' if not title else '# {}\r\n'.format(title),
body=body),
}
# Update our payload advance formatting for the services that
# support them.
if self.notify_format == NotifyFormat.HTML:
payload.update({
'format': 'org.matrix.custom.html',
'formatted_body': '{title}{body}'.format(
title='' if not title else '<h1>{}</h1>'.format(title),
body=body,
)
})
elif self.notify_format == NotifyFormat.MARKDOWN:
payload.update({
'format': 'org.matrix.custom.html',
'formatted_body': '{title}{body}'.format(
title='' if not title else '<h1>{}</h1>'.format(
NotifyMatrix.escape_html(title, whitespace=False)),
body=markdown(body),
)
})
# Post our content
method = 'PUT' if self.version == MatrixVersion.V3 else 'POST'
postokay, response = self._fetch(
path, payload=payload, method=method)
if not postokay:
# Notify our user
self.logger.warning(
'Could not send notification Matrix room {}.'.format(room))
# Mark our failure
has_error = True
continue
return not has_error
def _send_attachments(self, attach):
"""
Posts all of the provided attachments
"""
payloads = []
if self.version != MatrixVersion.V2:
self.logger.warning(
'Add ?v=2 to Apprise URL to support Attachments')
return next((False for a in attach if not a), [])
for attachment in attach:
if not attachment:
# invalid attachment (bad file)
return False
if not re.match(r'^image/', attachment.mimetype, re.I):
# unsuppored at this time
continue
postokay, response = \
self._fetch('/upload', attachment=attachment)
if not (postokay and isinstance(response, dict)):
# Failed to perform upload
return False
# If we get here, we'll have a response that looks like:
# {
# "content_uri": "mxc://example.com/a-unique-key"
# }
if self.version == MatrixVersion.V3:
# Prepare our payload
payloads.append({
"body": attachment.name,
"info": {
"mimetype": attachment.mimetype,
"size": len(attachment),
},
"msgtype": "m.image",
"url": response.get('content_uri'),
})
else:
# Prepare our payload
payloads.append({
"info": {
"mimetype": attachment.mimetype,
},
"msgtype": "m.image",
"body": "tta.webp",
"url": response.get('content_uri'),
})
return payloads
def _register(self):
"""
Register with the service if possible.
"""
# Prepare our Registration Payload. This will only work if registration
# is enabled for the public
payload = {
'kind': 'user',
'auth': {'type': 'm.login.dummy'},
}
# parameters
params = {
'kind': 'user',
}
# If a user is not specified, one will be randomly generated for you.
# If you do not specify a password, you will be unable to login to the
# account if you forget the access_token.
if self.user:
payload['username'] = self.user
if self.password:
payload['password'] = self.password
# Register
postokay, response = \
self._fetch('/register', payload=payload, params=params)
if not (postokay and isinstance(response, dict)):
# Failed to register
return False
# Pull the response details
self.access_token = response.get('access_token')
self.home_server = response.get('home_server')
self.user_id = response.get('user_id')
if self.access_token is not None:
self.logger.debug(
'Registered successfully with Matrix server.')
return True
return False
def _login(self):
"""
Acquires the matrix token required for making future requests. If we
fail we return False, otherwise we return True
"""
if self.access_token:
# Login not required; silently skip-over
return True
if not (self.user and self.password):
# It's not possible to register since we need these 2 values to
# make the action possible.
self.logger.warning(
'Failed to login to Matrix server: '
'user/pass combo is missing.')
return False
# Prepare our Authentication Payload
if self.version == MatrixVersion.V3:
payload = {
'type': 'm.login.password',
'identifier': {
'type': 'm.id.user',
'user': self.user,
},
'password': self.password,
}
else:
payload = {
'type': 'm.login.password',
'user': self.user,
'password': self.password,
}
# Build our URL
postokay, response = self._fetch('/login', payload=payload)
if not (postokay and isinstance(response, dict)):
# Failed to login
return False
# Pull the response details
self.access_token = response.get('access_token')
self.home_server = response.get('home_server')
self.user_id = response.get('user_id')
if not self.access_token:
return False
self.logger.debug(
'Authenticated successfully with Matrix server.')
return True
def _logout(self):
"""
Relinquishes token from remote server
"""
if not self.access_token:
# Login not required; silently skip-over
return True
# Prepare our Registration Payload
payload = {}
# Expire our token
postokay, response = self._fetch('/logout', payload=payload)
if not postokay:
# If we get here, the token was declared as having already
# been expired. The response looks like this:
# {
# u'errcode': u'M_UNKNOWN_TOKEN',
# u'error': u'Access Token unknown or expired',
# }
#
# In this case it's okay to safely return True because
# we're logged out in this case.
if response.get('errcode') != u'M_UNKNOWN_TOKEN':
return False
# else: The response object looks like this if we were successful:
# {}
# Pull the response details
self.access_token = None
self.home_server = None
self.user_id = None
# Clear our room cache
self._room_cache = {}
self.logger.debug(
'Unauthenticated successfully with Matrix server.')
return True
def _room_join(self, room):
"""
Joins a matrix room if we're not already in it. Otherwise it attempts
to create it if it doesn't exist and always returns
the room_id if it was successful, otherwise it returns None
"""
if not self.access_token:
# We can't join a room if we're not logged in
return None
if not isinstance(room, str):
# Not a supported string
return None
# Prepare our Join Payload
payload = {}
# Check if it's a room id...
result = IS_ROOM_ID.match(room)
if result:
# We detected ourselves the home_server
home_server = result.group('home_server') \
if result.group('home_server') else self.home_server
# It was a room ID; simple mapping:
room_id = "!{}:{}".format(
result.group('room'),
home_server,
)
# Check our cache for speed:
if room_id in self._room_cache:
# We're done as we've already joined the channel
return self._room_cache[room_id]['id']
# Build our URL
path = '/join/{}'.format(NotifyMatrix.quote(room_id))
# Make our query
postokay, _ = self._fetch(path, payload=payload)
if postokay:
# Cache our entry for fast access later
self._room_cache[room_id] = {
'id': room_id,
'home_server': home_server,
}
return room_id if postokay else None
# Try to see if it's an alias then...
result = IS_ROOM_ALIAS.match(room)
if not result:
# There is nothing else it could be
self.logger.warning(
'Ignoring illegally formed room {} '
'from Matrix server list.'.format(room))
return None
# If we reach here, we're dealing with a channel alias
home_server = self.home_server \
if not result.group('home_server') \
else result.group('home_server')
# tidy our room (alias) identifier
room = '#{}:{}'.format(result.group('room'), home_server)
# Check our cache for speed:
if room in self._room_cache:
# We're done as we've already joined the channel
return self._room_cache[room]['id']
# If we reach here, we need to join the channel
# Build our URL
path = '/join/{}'.format(NotifyMatrix.quote(room))
# Attempt to join the channel
postokay, response = self._fetch(path, payload=payload)
if postokay:
# Cache our entry for fast access later
self._room_cache[room] = {
'id': response.get('room_id'),
'home_server': home_server,
}
return self._room_cache[room]['id']
# Try to create the channel
return self._room_create(room)
def _room_create(self, room):
"""
Creates a matrix room and return it's room_id if successful
otherwise None is returned.
"""
if not self.access_token:
# We can't create a room if we're not logged in
return None
if not isinstance(room, str):
# Not a supported string
return None
# Build our room if we have to:
result = IS_ROOM_ALIAS.match(room)
if not result:
# Illegally formed room
return None
# Our home_server
home_server = result.group('home_server') \
if result.group('home_server') else self.home_server
# update our room details
room = '#{}:{}'.format(result.group('room'), home_server)
# Prepare our Create Payload
payload = {
'room_alias_name': result.group('room'),
# Set our channel name
'name': '#{} - {}'.format(result.group('room'), self.app_desc),
# hide the room by default; let the user open it up if they wish
# to others.
'visibility': 'private',
'preset': 'trusted_private_chat',
}
postokay, response = self._fetch('/createRoom', payload=payload)
if not postokay:
# Failed to create channel
# Typical responses:
# - {u'errcode': u'M_ROOM_IN_USE',
# u'error': u'Room alias already taken'}
# - {u'errcode': u'M_UNKNOWN',
# u'error': u'Internal server error'}
if (response and response.get('errcode') == 'M_ROOM_IN_USE'):
return self._room_id(room)
return None
# Cache our entry for fast access later
self._room_cache[response.get('room_alias')] = {
'id': response.get('room_id'),
'home_server': home_server,
}
return response.get('room_id')
def _joined_rooms(self):
"""
Returns a list of the current rooms the logged in user
is a part of.
"""
if not self.access_token:
# No list is possible
return list()
postokay, response = self._fetch(
'/joined_rooms', payload=None, method='GET')
if not postokay:
# Failed to retrieve listings
return list()
# Return our list of rooms
return response.get('joined_rooms', list())
def _room_id(self, room):
"""Get room id from its alias.
Args:
room (str): The room alias name.
Returns:
returns the room id if it can, otherwise it returns None
"""
if not self.access_token:
# We can't get a room id if we're not logged in
return None
if not isinstance(room, str):
# Not a supported string
return None
# Build our room if we have to:
result = IS_ROOM_ALIAS.match(room)
if not result:
# Illegally formed room
return None
# Our home_server
home_server = result.group('home_server') \
if result.group('home_server') else self.home_server
# update our room details
room = '#{}:{}'.format(result.group('room'), home_server)
# Make our request
postokay, response = self._fetch(
"/directory/room/{}".format(
NotifyMatrix.quote(room)), payload=None, method='GET')
if postokay:
return response.get("room_id")
return None
def _fetch(self, path, payload=None, params=None, attachment=None,
method='POST'):
"""
Wrapper to request.post() to manage it's response better and make
the send() function cleaner and easier to maintain.
This function returns True if the _post was successful and False
if it wasn't.
"""
# Define our headers
headers = {
'User-Agent': self.app_id,
'Content-Type': 'application/json',
'Accept': 'application/json',
}
if self.access_token is not None:
headers["Authorization"] = 'Bearer %s' % self.access_token
default_port = 443 if self.secure else 80
url = \
'{schema}://{hostname}{port}'.format(
schema='https' if self.secure else 'http',
hostname=self.host,
port='' if self.port is None
or self.port == default_port else f':{self.port}')
if path == '/upload':
if self.version == MatrixVersion.V3:
url += MATRIX_V3_MEDIA_PATH + path
else:
url += MATRIX_V2_MEDIA_PATH + path
params = {'filename': attachment.name}
with open(attachment.path, 'rb') as fp:
payload = fp.read()
# Update our content type
headers['Content-Type'] = attachment.mimetype
else:
if self.version == MatrixVersion.V3:
url += MATRIX_V3_API_PATH + path
else:
url += MATRIX_V2_API_PATH + path
# Our response object
response = {}
# fetch function
fn = requests.post if method == 'POST' else (
requests.put if method == 'PUT' else requests.get)
# Define how many attempts we'll make if we get caught in a throttle
# event
retries = self.default_retries if self.default_retries > 0 else 1
while retries > 0:
# Decrement our throttle retry count
retries -= 1
self.logger.debug('Matrix POST URL: %s (cert_verify=%r)' % (
url, self.verify_certificate,
))
self.logger.debug('Matrix Payload: %s' % str(payload))
# Initialize our response object
r = None
try:
r = fn(
url,
data=dumps(payload) if not attachment else payload,
params=params,
headers=headers,
verify=self.verify_certificate,
timeout=self.request_timeout,
)
self.logger.debug(
'Matrix Response: code=%d, %s' % (
r.status_code, str(r.content)))
response = loads(r.content)
if r.status_code == 429:
wait = self.default_wait_ms / 1000
try:
wait = response['retry_after_ms'] / 1000
except KeyError:
try:
errordata = response['error']
wait = errordata['retry_after_ms'] / 1000
except KeyError:
pass
self.logger.warning(
'Matrix server requested we throttle back {}ms; '
'retries left {}.'.format(wait, retries))
self.logger.debug(
'Response Details:\r\n{}'.format(r.content))
# Throttle for specified wait
self.throttle(wait=wait)
# Try again
continue
elif r.status_code != requests.codes.ok:
# We had a problem
status_str = \
NotifyMatrix.http_response_code_lookup(
r.status_code, MATRIX_HTTP_ERROR_MAP)
self.logger.warning(
'Failed to handshake with Matrix server: '
'{}{}error={}.'.format(
status_str,
', ' if status_str else '',
r.status_code))
self.logger.debug(
'Response Details:\r\n{}'.format(r.content))
# Return; we're done
return (False, response)
except (AttributeError, TypeError, ValueError):
# This gets thrown if we can't parse our JSON Response
# - ValueError = r.content is Unparsable
# - TypeError = r.content is None
# - AttributeError = r is None
self.logger.warning('Invalid response from Matrix server.')
self.logger.debug(
'Response Details:\r\n{}'.format(r.content))
return (False, {})
except requests.RequestException as e:
self.logger.warning(
'A Connection error occurred while registering with Matrix'
' server.')
self.logger.debug('Socket Exception: %s' % str(e))
# Return; we're done
return (False, response)
except (OSError, IOError) as e:
self.logger.warning(
'An I/O error occurred while reading {}.'.format(
attachment.name if attachment else 'unknown file'))
self.logger.debug('I/O Exception: %s' % str(e))
return (False, {})
return (True, response)
# If we get here, we ran out of retries
return (False, {})
def __del__(self):
"""
Ensure we relinquish our token
"""
if self.mode == MatrixWebhookMode.T2BOT:
# nothing to do
return
try:
self._logout()
except LookupError: # pragma: no cover
# Python v3.5 call to requests can sometimes throw the exception
# "/usr/lib64/python3.7/socket.py", line 748, in getaddrinfo
# LookupError: unknown encoding: idna
#
# This occurs every time when running unit-tests against Apprise:
# LANG=C.UTF-8 PYTHONPATH=$(pwd) py.test-3.7
#
# There has been an open issue on this since Jan 2017.
# - https://bugs.python.org/issue29288
#
# A ~similar~ issue can be identified here in the requests
# ticket system as unresolved and has provided workarounds
# - https://github.com/kennethreitz/requests/issues/3578
pass
except ImportError: # pragma: no cover
# The actual exception is `ModuleNotFoundError` however ImportError
# grants us backwards compatibility with versions of Python older
# than v3.6
# Python code that makes early calls to sys.exit() can cause
# the __del__() code to run. However, in some newer versions of
# Python, this causes the `sys` library to no longer be
# available. The stack overflow also goes on to suggest that
# it's not wise to use the __del__() as a destructor
# which is the case here.
# https://stackoverflow.com/questions/67218341/\
# modulenotfounderror-import-of-time-halted-none-in-sys-\
# modules-occured-when-obj?noredirect=1&lq=1
#
#
# Also see: https://stackoverflow.com/questions\
# /1481488/what-is-the-del-method-and-how-do-i-call-it
# At this time it seems clean to try to log out (if we can)
# but not throw any unnecessary exceptions (like this one) to
# the end user if we don't have to.
pass
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',
'mode': self.mode,
'version': self.version,
'msgtype': self.msgtype,
}
# Extend our parameters
params.update(self.url_parameters(privacy=privacy, *args, **kwargs))
auth = ''
if self.mode != MatrixWebhookMode.T2BOT:
# Determine Authentication
if self.user and self.password:
auth = '{user}:{password}@'.format(
user=NotifyMatrix.quote(self.user, safe=''),
password=self.pprint(
self.password, privacy, mode=PrivacyMode.Secret,
safe=''),
)
elif self.user:
auth = '{user}@'.format(
user=NotifyMatrix.quote(self.user, safe=''),
)
default_port = 443 if self.secure else 80
return '{schema}://{auth}{hostname}{port}/{rooms}?{params}'.format(
schema=self.secure_protocol if self.secure else self.protocol,
auth=auth,
hostname=NotifyMatrix.quote(self.host, safe='')
if self.mode != MatrixWebhookMode.T2BOT
else self.pprint(self.access_token, privacy, safe=''),
port='' if self.port is None
or self.port == default_port else ':{}'.format(self.port),
rooms=NotifyMatrix.quote('/'.join(self.rooms)),
params=NotifyMatrix.urlencode(params),
)
def __len__(self):
"""
Returns the number of targets associated with this notification
"""
targets = len(self.rooms)
return targets if targets > 0 else 1
@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, verify_host=False)
if not results:
# We're done early as we couldn't load the results
return results
if not results.get('host'):
return None
# Get our rooms
results['targets'] = NotifyMatrix.split_path(results['fullpath'])
# Support the 'to' variable so that we can support rooms this way too
# The 'to' makes it easier to use yaml configuration
if 'to' in results['qsd'] and len(results['qsd']['to']):
results['targets'] += NotifyMatrix.parse_list(results['qsd']['to'])
# Boolean to include an image or not
results['include_image'] = parse_bool(results['qsd'].get(
'image', NotifyMatrix.template_args['image']['default']))
# Get our mode
results['mode'] = results['qsd'].get('mode')
# t2bot detection... look for just a hostname, and/or just a user/host
# if we match this; we can go ahead and set the mode (but only if
# it was otherwise not set)
if results['mode'] is None \
and not results['password'] \
and not results['targets']:
# Default mode to t2bot
results['mode'] = MatrixWebhookMode.T2BOT
if results['mode'] and \
results['mode'].lower() == MatrixWebhookMode.T2BOT:
# unquote our hostname and pass it in as the password/token
results['password'] = NotifyMatrix.unquote(results['host'])
# Support the message type keyword
if 'msgtype' in results['qsd'] and len(results['qsd']['msgtype']):
results['msgtype'] = \
NotifyMatrix.unquote(results['qsd']['msgtype'])
# Support the use of the token= keyword
if 'token' in results['qsd'] and len(results['qsd']['token']):
results['password'] = NotifyMatrix.unquote(results['qsd']['token'])
# Support the use of the version= or v= keyword
if 'version' in results['qsd'] and len(results['qsd']['version']):
results['version'] = \
NotifyMatrix.unquote(results['qsd']['version'])
elif 'v' in results['qsd'] and len(results['qsd']['v']):
results['version'] = NotifyMatrix.unquote(results['qsd']['v'])
return results
@staticmethod
def parse_native_url(url):
"""
Support https://webhooks.t2bot.io/api/v1/matrix/hook/WEBHOOK_TOKEN/
"""
result = re.match(
r'^https?://webhooks\.t2bot\.io/api/v[0-9]+/matrix/hook/'
r'(?P<webhook_token>[A-Z0-9_-]+)/?'
r'(?P<params>\?.+)?$', url, re.I)
if result:
mode = 'mode={}'.format(MatrixWebhookMode.T2BOT)
return NotifyMatrix.parse_url(
'{schema}://{webhook_token}/{params}'.format(
schema=NotifyMatrix.secure_protocol,
webhook_token=result.group('webhook_token'),
params='?{}'.format(mode) if not result.group('params')
else '{}&{}'.format(result.group('params'), mode)))
return None