mirror of
https://github.com/SickGear/SickGear.git
synced 2024-11-27 23:23:38 +00:00
567 lines
19 KiB
Python
567 lines
19 KiB
Python
# -*- coding: utf-8 -*-
|
||
# BSD 2-Clause License
|
||
#
|
||
# Apprise - Push Notification Library.
|
||
# Copyright (c) 2024, 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.
|
||
|
||
# PAHO MQTT Documentation:
|
||
# https://www.eclipse.org/paho/index.php?page=clients/python/docs/index.php
|
||
#
|
||
# Looking at the PAHO MQTT Source can help shed light on what's going on too
|
||
# as their inline documentation is pretty good!
|
||
# https://github.com/eclipse/paho.mqtt.python\
|
||
# /blob/master/src/paho/mqtt/client.py
|
||
import ssl
|
||
import re
|
||
from time import sleep
|
||
from datetime import datetime
|
||
from os.path import isfile
|
||
from .base import NotifyBase
|
||
from ..url import PrivacyMode
|
||
from ..common import NotifyType
|
||
from ..utils import parse_list
|
||
from ..utils import parse_bool
|
||
from ..locale import gettext_lazy as _
|
||
|
||
# Default our global support flag
|
||
NOTIFY_MQTT_SUPPORT_ENABLED = False
|
||
|
||
try:
|
||
# 3rd party modules
|
||
import paho.mqtt.client as mqtt
|
||
|
||
# We're good to go!
|
||
NOTIFY_MQTT_SUPPORT_ENABLED = True
|
||
|
||
MQTT_PROTOCOL_MAP = {
|
||
# v3.1.1
|
||
"311": mqtt.MQTTv311,
|
||
# v3.1
|
||
"31": mqtt.MQTTv31,
|
||
# v5.0
|
||
"5": mqtt.MQTTv5,
|
||
# v5.0 (alias)
|
||
"50": mqtt.MQTTv5,
|
||
}
|
||
|
||
except ImportError:
|
||
# No problem; we just simply can't support this plugin because we're
|
||
# either using Linux, or simply do not have pywin32 installed.
|
||
MQTT_PROTOCOL_MAP = {}
|
||
|
||
# A lookup map for relaying version to user
|
||
HUMAN_MQTT_PROTOCOL_MAP = {
|
||
"v3.1.1": "311",
|
||
"v3.1": "31",
|
||
"v5.0": "5",
|
||
}
|
||
|
||
|
||
class NotifyMQTT(NotifyBase):
|
||
"""
|
||
A wrapper for MQTT Notifications
|
||
"""
|
||
|
||
# Set our global enabled flag
|
||
enabled = NOTIFY_MQTT_SUPPORT_ENABLED
|
||
|
||
requirements = {
|
||
# Define our required packaging in order to work
|
||
'packages_required': 'paho-mqtt < 2.0.0'
|
||
}
|
||
|
||
# The default descriptive name associated with the Notification
|
||
service_name = 'MQTT Notification'
|
||
|
||
# The default protocol
|
||
protocol = 'mqtt'
|
||
|
||
# Secure protocol
|
||
secure_protocol = 'mqtts'
|
||
|
||
# A URL that takes you to the setup/help of the specific protocol
|
||
setup_url = 'https://github.com/caronc/apprise/wiki/Notify_mqtt'
|
||
|
||
# MQTT does not have a title
|
||
title_maxlen = 0
|
||
|
||
# The maximum length a body can be set to
|
||
body_maxlen = 268435455
|
||
|
||
# Use a throttle; but it doesn't need to be so strict since most
|
||
# MQTT server hostings can handle the small bursts of packets and are
|
||
# locally hosted anyway
|
||
request_rate_per_sec = 0.5
|
||
|
||
# Port Defaults (unless otherwise specified)
|
||
mqtt_insecure_port = 1883
|
||
|
||
# The default secure port to use (if mqtts://)
|
||
mqtt_secure_port = 8883
|
||
|
||
# The default mqtt keepalive value
|
||
mqtt_keepalive = 30
|
||
|
||
# The default mqtt transport
|
||
mqtt_transport = "tcp"
|
||
|
||
# The number of seconds to wait for a publish to occur at before
|
||
# checking to see if it's been sent yet.
|
||
mqtt_block_time_sec = 0.2
|
||
|
||
# Set the maximum number of messages with QoS>0 that can be part way
|
||
# through their network flow at once.
|
||
mqtt_inflight_messages = 200
|
||
|
||
# Define object templates
|
||
templates = (
|
||
'{schema}://{user}@{host}/{topic}',
|
||
'{schema}://{user}@{host}:{port}/{topic}',
|
||
'{schema}://{user}:{password}@{host}/{topic}',
|
||
'{schema}://{user}:{password}@{host}:{port}/{topic}',
|
||
)
|
||
|
||
template_tokens = dict(NotifyBase.template_tokens, **{
|
||
'host': {
|
||
'name': _('Hostname'),
|
||
'type': 'string',
|
||
'required': True,
|
||
},
|
||
'port': {
|
||
'name': _('Port'),
|
||
'type': 'int',
|
||
'min': 1,
|
||
'max': 65535,
|
||
},
|
||
'user': {
|
||
'name': _('User Name'),
|
||
'type': 'string',
|
||
'required': True,
|
||
},
|
||
'password': {
|
||
'name': _('Password'),
|
||
'type': 'string',
|
||
'private': True,
|
||
'required': True,
|
||
},
|
||
'topic': {
|
||
'name': _('Target Queue'),
|
||
'type': 'string',
|
||
'map_to': 'targets',
|
||
},
|
||
'targets': {
|
||
'name': _('Targets'),
|
||
'type': 'list:string',
|
||
},
|
||
})
|
||
|
||
# Define our template arguments
|
||
template_args = dict(NotifyBase.template_args, **{
|
||
'to': {
|
||
'alias_of': 'targets',
|
||
},
|
||
'qos': {
|
||
'name': _('QOS'),
|
||
'type': 'int',
|
||
'default': 0,
|
||
'min': 0,
|
||
'max': 2,
|
||
},
|
||
'version': {
|
||
'name': _('Version'),
|
||
'type': 'choice:string',
|
||
'values': HUMAN_MQTT_PROTOCOL_MAP,
|
||
'default': "v3.1.1",
|
||
},
|
||
'client_id': {
|
||
'name': _('Client ID'),
|
||
'type': 'string',
|
||
},
|
||
'session': {
|
||
'name': _('Use Session'),
|
||
'type': 'bool',
|
||
'default': False,
|
||
},
|
||
})
|
||
|
||
def __init__(self, targets=None, version=None, qos=None,
|
||
client_id=None, session=None, **kwargs):
|
||
"""
|
||
Initialize MQTT Object
|
||
"""
|
||
|
||
super().__init__(**kwargs)
|
||
|
||
# Initialize topics
|
||
self.topics = parse_list(targets)
|
||
|
||
if version is None:
|
||
self.version = self.template_args['version']['default']
|
||
else:
|
||
self.version = version
|
||
|
||
# Save our client id if specified
|
||
self.client_id = client_id
|
||
|
||
# Maintain our session (associated with our user id if set)
|
||
self.session = self.template_args['session']['default'] \
|
||
if session is None or not self.client_id \
|
||
else parse_bool(session)
|
||
|
||
# Set up our Quality of Service (QoS)
|
||
try:
|
||
self.qos = self.template_args['qos']['default'] \
|
||
if qos is None else int(qos)
|
||
|
||
if self.qos < self.template_args['qos']['min'] \
|
||
or self.qos > self.template_args['qos']['max']:
|
||
# Let error get handle on exceptio higher up
|
||
raise ValueError("")
|
||
|
||
except (ValueError, TypeError):
|
||
msg = 'An invalid MQTT QOS ({}) was specified.'.format(qos)
|
||
self.logger.warning(msg)
|
||
raise TypeError(msg)
|
||
|
||
if not self.port:
|
||
# Assign port (if not otherwise set)
|
||
self.port = self.mqtt_secure_port \
|
||
if self.secure else self.mqtt_insecure_port
|
||
|
||
self.ca_certs = None
|
||
if self.secure:
|
||
# verify SSL key or abort
|
||
# TODO: There is no error reporting or aborting here?
|
||
# It could be useful to inform the user _where_ Apprise
|
||
# tried to find the root CA certificates file.
|
||
self.ca_certs = next(
|
||
(cert for cert in self.CA_CERTIFICATE_FILE_LOCATIONS
|
||
if isfile(cert)), None)
|
||
|
||
# Set up our MQTT Publisher
|
||
try:
|
||
# Get our protocol
|
||
self.mqtt_protocol = \
|
||
MQTT_PROTOCOL_MAP[re.sub(r'[^0-9]+', '', self.version)]
|
||
|
||
except (KeyError):
|
||
msg = 'An invalid MQTT Protocol version ' \
|
||
'({}) was specified.'.format(version)
|
||
self.logger.warning(msg)
|
||
raise TypeError(msg)
|
||
|
||
# Our MQTT Client Object
|
||
self.client = mqtt.Client(
|
||
client_id=self.client_id,
|
||
clean_session=not self.session, userdata=None,
|
||
protocol=self.mqtt_protocol, transport=self.mqtt_transport,
|
||
)
|
||
|
||
# Our maximum number of in-flight messages
|
||
self.client.max_inflight_messages_set(self.mqtt_inflight_messages)
|
||
|
||
# Toggled to False once our connection has been established at least
|
||
# once
|
||
self.__initial_connect = True
|
||
|
||
def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
|
||
"""
|
||
Perform MQTT Notification
|
||
"""
|
||
|
||
if len(self.topics) == 0:
|
||
# There were no services to notify
|
||
self.logger.warning('There were no MQTT topics to notify.')
|
||
return False
|
||
|
||
# For logging:
|
||
url = '{host}:{port}'.format(host=self.host, port=self.port)
|
||
|
||
try:
|
||
if self.__initial_connect:
|
||
# Our initial connection
|
||
if self.user:
|
||
self.client.username_pw_set(
|
||
self.user, password=self.password)
|
||
|
||
if self.secure:
|
||
if self.ca_certs is None:
|
||
self.logger.error(
|
||
'MQTT secure communication can not be verified, '
|
||
'CA certificates file missing')
|
||
return False
|
||
|
||
self.client.tls_set(
|
||
ca_certs=self.ca_certs, certfile=None, keyfile=None,
|
||
cert_reqs=ssl.CERT_REQUIRED,
|
||
tls_version=ssl.PROTOCOL_TLS,
|
||
ciphers=None)
|
||
|
||
# Set our TLS Verify Flag
|
||
self.client.tls_insecure_set(not self.verify_certificate)
|
||
|
||
# Establish our connection
|
||
if self.client.connect(
|
||
self.host, port=self.port,
|
||
keepalive=self.mqtt_keepalive) \
|
||
!= mqtt.MQTT_ERR_SUCCESS:
|
||
self.logger.warning(
|
||
'An MQTT connection could not be established for {}'.
|
||
format(url))
|
||
return False
|
||
|
||
# Start our client loop
|
||
self.client.loop_start()
|
||
|
||
# Throttle our start otherwise the starting handshaking doesnt
|
||
# work. I'm not sure if this is a bug or not, but with qos=0,
|
||
# and without this sleep(), the messages randomly fails to be
|
||
# delivered.
|
||
sleep(0.01)
|
||
|
||
# Toggle our flag since we never need to enter this area again
|
||
self.__initial_connect = False
|
||
|
||
# Create a copy of the subreddits list
|
||
topics = list(self.topics)
|
||
|
||
has_error = False
|
||
while len(topics) > 0 and not has_error:
|
||
# Retrieve our subreddit
|
||
topic = topics.pop()
|
||
|
||
# For logging:
|
||
url = '{host}:{port}/{topic}'.format(
|
||
host=self.host,
|
||
port=self.port,
|
||
topic=topic)
|
||
|
||
# Always call throttle before any remote server i/o is made
|
||
self.throttle()
|
||
|
||
# handle a re-connection
|
||
if not self.client.is_connected() and \
|
||
self.client.reconnect() != mqtt.MQTT_ERR_SUCCESS:
|
||
self.logger.warning(
|
||
'An MQTT connection could not be sustained for {}'.
|
||
format(url))
|
||
has_error = True
|
||
break
|
||
|
||
# Some Debug Logging
|
||
self.logger.debug('MQTT POST URL: {} (cert_verify={})'.format(
|
||
url, self.verify_certificate))
|
||
self.logger.debug('MQTT Payload: %s' % str(body))
|
||
|
||
result = self.client.publish(
|
||
topic, payload=body, qos=self.qos, retain=False)
|
||
|
||
if result.rc != mqtt.MQTT_ERR_SUCCESS:
|
||
# Toggle our status
|
||
self.logger.warning(
|
||
'An error (rc={}) occured when sending MQTT to {}'.
|
||
format(result.rc, url))
|
||
has_error = True
|
||
break
|
||
|
||
elif not result.is_published():
|
||
self.logger.debug(
|
||
'Blocking until MQTT payload is published...')
|
||
reference = datetime.now()
|
||
while not has_error and not result.is_published():
|
||
# Throttle
|
||
sleep(self.mqtt_block_time_sec)
|
||
|
||
# Our own throttle so we can abort eventually....
|
||
elapsed = (datetime.now() - reference).total_seconds()
|
||
if elapsed >= self.socket_read_timeout:
|
||
self.logger.warning(
|
||
'The MQTT message could not be delivered')
|
||
has_error = True
|
||
|
||
# if we reach here; we're at the bottom of our loop
|
||
# we loop around and do the next topic now
|
||
|
||
except ConnectionError as e:
|
||
self.logger.warning(
|
||
'MQTT Connection Error received from {}'.format(url))
|
||
self.logger.debug('Socket Exception: %s' % str(e))
|
||
return False
|
||
|
||
except ssl.CertificateError as e:
|
||
self.logger.warning(
|
||
'MQTT SSL Certificate Error received from {}'.format(url))
|
||
self.logger.debug('Socket Exception: %s' % str(e))
|
||
return False
|
||
|
||
except ValueError as e:
|
||
# ValueError's are thrown from publish() call if there is a problem
|
||
self.logger.warning(
|
||
'MQTT Publishing error received: from {}'.format(url))
|
||
self.logger.debug('Socket Exception: %s' % str(e))
|
||
return False
|
||
|
||
if not has_error:
|
||
# Verbal notice
|
||
self.logger.info('Sent MQTT notification')
|
||
|
||
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 = {
|
||
'version': self.version,
|
||
'qos': str(self.qos),
|
||
'session': 'yes' if self.session else 'no',
|
||
}
|
||
|
||
if self.client_id:
|
||
# Our client id is set if specified
|
||
params['client_id'] = self.client_id
|
||
|
||
# Extend our parameters
|
||
params.update(self.url_parameters(privacy=privacy, *args, **kwargs))
|
||
|
||
# Determine Authentication
|
||
auth = ''
|
||
if self.user and self.password:
|
||
auth = '{user}:{password}@'.format(
|
||
user=NotifyMQTT.quote(self.user, safe=''),
|
||
password=self.pprint(
|
||
self.password, privacy, mode=PrivacyMode.Secret, safe=''),
|
||
)
|
||
elif self.user:
|
||
auth = '{user}@'.format(
|
||
user=NotifyMQTT.quote(self.user, safe=''),
|
||
)
|
||
|
||
default_port = self.mqtt_secure_port \
|
||
if self.secure else self.mqtt_insecure_port
|
||
|
||
return '{schema}://{auth}{hostname}{port}/{targets}?{params}'.format(
|
||
schema=self.secure_protocol if self.secure else self.protocol,
|
||
auth=auth,
|
||
# never encode hostname since we're expecting it to be a valid one
|
||
hostname=self.host,
|
||
port='' if self.port is None or self.port == default_port
|
||
else ':{}'.format(self.port),
|
||
targets=','.join(
|
||
[NotifyMQTT.quote(x, safe='/') for x in self.topics]),
|
||
params=NotifyMQTT.urlencode(params),
|
||
)
|
||
|
||
def __len__(self):
|
||
"""
|
||
Returns the number of targets associated with this notification
|
||
"""
|
||
return len(self.topics)
|
||
|
||
@staticmethod
|
||
def parse_url(url):
|
||
"""
|
||
There are no parameters nessisary for this protocol; simply having
|
||
windows:// is all you need. This function just makes sure that
|
||
is in place.
|
||
|
||
"""
|
||
|
||
results = NotifyBase.parse_url(url)
|
||
if not results:
|
||
# We're done early as we couldn't load the results
|
||
return results
|
||
|
||
try:
|
||
# Acquire topic(s)
|
||
results['targets'] = parse_list(
|
||
NotifyMQTT.unquote(results['fullpath'].lstrip('/')))
|
||
|
||
except AttributeError:
|
||
# No 'fullpath' specified
|
||
results['targets'] = []
|
||
|
||
# The MQTT protocol version to use
|
||
if 'version' in results['qsd'] and len(results['qsd']['version']):
|
||
results['version'] = \
|
||
NotifyMQTT.unquote(results['qsd']['version'])
|
||
|
||
# The MQTT Client ID
|
||
if 'client_id' in results['qsd'] and len(results['qsd']['client_id']):
|
||
results['client_id'] = \
|
||
NotifyMQTT.unquote(results['qsd']['client_id'])
|
||
|
||
if 'session' in results['qsd'] and len(results['qsd']['session']):
|
||
results['session'] = parse_bool(results['qsd']['session'])
|
||
|
||
# The MQTT Quality of Service to use
|
||
if 'qos' in results['qsd'] and len(results['qsd']['qos']):
|
||
results['qos'] = \
|
||
NotifyMQTT.unquote(results['qsd']['qos'])
|
||
|
||
# The 'to' makes it easier to use yaml configuration
|
||
if 'to' in results['qsd'] and len(results['qsd']['to']):
|
||
results['targets'].extend(
|
||
NotifyMQTT.parse_list(results['qsd']['to']))
|
||
|
||
# return results
|
||
return results
|
||
|
||
@property
|
||
def CA_CERTIFICATE_FILE_LOCATIONS(self):
|
||
"""
|
||
Return possible locations to root certificate authority (CA) bundles.
|
||
|
||
Taken from https://golang.org/src/crypto/x509/root_linux.go
|
||
TODO: Maybe refactor to a general utility function?
|
||
"""
|
||
candidates = [
|
||
# Debian/Ubuntu/Gentoo etc.
|
||
"/etc/ssl/certs/ca-certificates.crt",
|
||
# Fedora/RHEL 6
|
||
"/etc/pki/tls/certs/ca-bundle.crt",
|
||
# OpenSUSE
|
||
"/etc/ssl/ca-bundle.pem",
|
||
# OpenELEC
|
||
"/etc/pki/tls/cacert.pem",
|
||
# CentOS/RHEL 7
|
||
"/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem",
|
||
# macOS Homebrew; brew install ca-certificates
|
||
"/usr/local/etc/ca-certificates/cert.pem",
|
||
]
|
||
|
||
# Certifi provides Mozilla’s carefully curated collection of Root
|
||
# Certificates for validating the trustworthiness of SSL certificates
|
||
# while verifying the identity of TLS hosts. It has been extracted from
|
||
# the Requests project.
|
||
try:
|
||
import certifi
|
||
candidates.append(certifi.where())
|
||
except ImportError: # pragma: no cover
|
||
pass
|
||
|
||
return candidates
|