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bazarr/libs/apprise/plugins/NotifyXMPP.py
2019-06-07 07:16:07 -04:00

425 lines
14 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2019 Chris Caron <lead2gold@gmail.com>
# All rights reserved.
#
# This code is licensed under the MIT License.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files(the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions :
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
import re
import ssl
from os.path import isfile
from .NotifyBase import NotifyBase
from ..common import NotifyType
from ..utils import parse_list
from ..AppriseLocale import gettext_lazy as _
# xep string parser
XEP_PARSE_RE = re.compile('^[^1-9]*(?P<xep>[1-9][0-9]{0,3})$')
# Default our global support flag
NOTIFY_XMPP_SUPPORT_ENABLED = False
# Taken from https://golang.org/src/crypto/x509/root_linux.go
CA_CERTIFICATE_FILE_LOCATIONS = [
# 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",
]
try:
# Import sleekxmpp if available
import sleekxmpp
NOTIFY_XMPP_SUPPORT_ENABLED = True
except ImportError:
# No problem; we just simply can't support this plugin because we're
# either using Linux, or simply do not have sleekxmpp installed.
pass
class NotifyXMPP(NotifyBase):
"""
A wrapper for XMPP Notifications
"""
# The default descriptive name associated with the Notification
service_name = 'XMPP'
# The default protocol
protocol = 'xmpp'
# The default secure protocol
secure_protocol = 'xmpps'
# A URL that takes you to the setup/help of the specific protocol
setup_url = 'https://github.com/caronc/apprise/wiki/Notify_xmpp'
# The default XMPP port
default_unsecure_port = 5222
# The default XMPP secure port
default_secure_port = 5223
# XMPP does not support a title
title_maxlen = 0
# This entry is a bit hacky, but it allows us to unit-test this library
# in an environment that simply doesn't have the sleekxmpp package
# available to us.
#
# If anyone is seeing this had knows a better way of testing this
# outside of what is defined in test/test_xmpp_plugin.py, please
# let me know! :)
_enabled = NOTIFY_XMPP_SUPPORT_ENABLED
# Define object templates
templates = (
'{schema}://{host}',
'{schema}://{password}@{host}',
'{schema}://{password}@{host}:{port}',
'{schema}://{user}:{password}@{host}',
'{schema}://{user}:{password}@{host}:{port}',
'{schema}://{host}/{targets}',
'{schema}://{password}@{host}/{targets}',
'{schema}://{password}@{host}:{port}/{targets}',
'{schema}://{user}:{password}@{host}/{targets}',
'{schema}://{user}:{password}@{host}:{port}/{targets}',
)
# Define our tokens
template_tokens = dict(NotifyBase.template_tokens, **{
'host': {
'name': _('Hostname'),
'type': 'string',
'required': True,
},
'port': {
'name': _('Port'),
'type': 'int',
'min': 1,
'max': 65535,
},
'user': {
'name': _('Username'),
'type': 'string',
},
'password': {
'name': _('Password'),
'type': 'string',
'private': True,
'required': True,
},
'target_jid': {
'name': _('Target JID'),
'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',
},
'xep': {
'name': _('XEP'),
'type': 'list:string',
'prefix': 'xep-',
'regex': (r'[1-9][0-9]{0,3}', 'i'),
},
'jid': {
'name': _('Source JID'),
'type': 'string',
},
})
def __init__(self, targets=None, jid=None, xep=None, **kwargs):
"""
Initialize XMPP Object
"""
super(NotifyXMPP, self).__init__(**kwargs)
# JID Details:
# - JID's normally have an @ symbol in them, but it is not required
# - Each allowable portion of a JID MUST NOT be more than 1023 bytes
# in length.
# - JID's can identify resource paths at the end separated by slashes
# hence the following is valid: user@example.com/resource/path
# Since JID's can clash with URLs offered by aprise (specifically the
# resource paths we need to allow users an alternative character to
# represent the slashes. The grammer is defined here:
# https://xmpp.org/extensions/xep-0029.html as follows:
#
# <JID> ::= [<node>"@"]<domain>["/"<resource>]
# <node> ::= <conforming-char>[<conforming-char>]*
# <domain> ::= <hname>["."<hname>]*
# <resource> ::= <any-char>[<any-char>]*
# <hname> ::= <let>|<dig>[[<let>|<dig>|"-"]*<let>|<dig>]
# <let> ::= [a-z] | [A-Z]
# <dig> ::= [0-9]
# <conforming-char> ::= #x21 | [#x23-#x25] | [#x28-#x2E] |
# [#x30-#x39] | #x3B | #x3D | #x3F |
# [#x41-#x7E] | [#x80-#xD7FF] |
# [#xE000-#xFFFD] | [#x10000-#x10FFFF]
# <any-char> ::= [#x20-#xD7FF] | [#xE000-#xFFFD] |
# [#x10000-#x10FFFF]
# The best way to do this is to choose characters that aren't allowed
# in this case we will use comma and/or space.
# Assemble our jid using the information available to us:
self.jid = jid
if not (self.user or self.password):
# you must provide a jid/pass for this to work; if no password
# is specified then the user field acts as the password instead
# so we know that if there is no user specified, our url was
# really busted up.
msg = 'You must specify a XMPP password'
self.logger.warning(msg)
raise TypeError(msg)
# See https://xmpp.org/extensions/ for details on xep values
if xep is None:
# Default xep setting
self.xep = [
# xep_0030: Service Discovery
30,
# xep_0199: XMPP Ping
199,
]
else:
# Prepare the list
_xep = parse_list(xep)
self.xep = []
for xep in _xep:
result = XEP_PARSE_RE.match(xep)
if result is not None:
self.xep.append(int(result.group('xep')))
else:
self.logger.warning(
"Could not load XMPP xep {}".format(xep))
# By default we send ourselves a message
if targets:
self.targets = parse_list(targets)
else:
self.targets = list()
def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
"""
Perform XMPP Notification
"""
if not self._enabled:
self.logger.warning(
'XMPP Notifications are not supported by this system '
'- install sleekxmpp.')
return False
# Detect our JID if it isn't otherwise specified
jid = self.jid
password = self.password
if not jid:
if self.user and self.password:
# xmpp://user:password@hostname
jid = '{}@{}'.format(self.user, self.host)
else:
# xmpp://password@hostname
jid = self.host
password = self.password if self.password else self.user
# Prepare our object
xmpp = sleekxmpp.ClientXMPP(jid, password)
for xep in self.xep:
# Load xep entries
xmpp.register_plugin('xep_{0:04d}'.format(xep))
if self.secure:
xmpp.ssl_version = ssl.PROTOCOL_TLSv1
# If the python version supports it, use highest TLS version
# automatically
if hasattr(ssl, "PROTOCOL_TLS"):
# Use the best version of TLS available to us
xmpp.ssl_version = ssl.PROTOCOL_TLS
xmpp.ca_certs = None
if self.verify_certificate:
# Set the ca_certs variable for certificate verification
xmpp.ca_certs = next(
(cert for cert in CA_CERTIFICATE_FILE_LOCATIONS
if isfile(cert)), None)
if xmpp.ca_certs is None:
self.logger.warning(
'XMPP Secure comunication can not be verified; '
'no CA certificate found')
# Acquire our port number
if not self.port:
port = self.default_secure_port \
if self.secure else self.default_unsecure_port
else:
port = self.port
# Establish our connection
if not xmpp.connect((self.host, port)):
return False
xmpp.send_presence()
try:
xmpp.get_roster()
except sleekxmpp.exceptions.IqError as e:
self.logger.warning('There was an error getting the XMPP roster.')
self.logger.debug(e.iq['error']['condition'])
xmpp.disconnect()
return False
except sleekxmpp.exceptions.IqTimeout:
self.logger.warning('XMPP Server is taking too long to respond.')
xmpp.disconnect()
return False
targets = list(self.targets)
if not targets:
# We always default to notifying ourselves
targets.append(jid)
while len(targets) > 0:
# Get next target (via JID)
target = targets.pop(0)
# Always call throttle before any remote server i/o is made
self.throttle()
# The message we wish to send, and the JID that
# will receive it.
xmpp.send_message(mto=target, mbody=body, mtype='chat')
# Using wait=True ensures that the send queue will be
# emptied before ending the session.
xmpp.disconnect(wait=True)
return True
def url(self):
"""
Returns the URL built dynamically based on specified arguments.
"""
# Define any arguments set
args = {
'format': self.notify_format,
'overflow': self.overflow_mode,
'verify': 'yes' if self.verify_certificate else 'no',
}
if self.jid:
args['jid'] = self.jid
if self.xep:
# xep are integers, so we need to just iterate over a list and
# switch them to a string
args['xep'] = ','.join([str(xep) for xep in self.xep])
# Target JID(s) can clash with our existing paths, so we just use comma
# and/or space as a delimiters - %20 = space
jids = '%20'.join([NotifyXMPP.quote(x, safe='') for x in self.targets])
default_port = self.default_secure_port \
if self.secure else self.default_unsecure_port
default_schema = self.secure_protocol if self.secure else self.protocol
if self.user and self.password:
auth = '{}:{}'.format(
NotifyXMPP.quote(self.user, safe=''),
NotifyXMPP.quote(self.password, safe=''))
else:
auth = self.password if self.password else self.user
return '{schema}://{auth}@{hostname}{port}/{jids}?{args}'.format(
auth=auth,
schema=default_schema,
hostname=NotifyXMPP.quote(self.host, safe=''),
port='' if not self.port or self.port == default_port
else ':{}'.format(self.port),
jids=jids,
args=NotifyXMPP.urlencode(args),
)
@staticmethod
def parse_url(url):
"""
Parses the URL and returns enough arguments that can allow
us to substantiate this object.
"""
results = NotifyBase.parse_url(url)
if not results:
# We're done early as we couldn't load the results
return results
# Get our targets; we ignore path slashes since they identify
# our resources
results['targets'] = NotifyXMPP.parse_list(results['fullpath'])
# Over-ride the xep plugins
if 'xep' in results['qsd'] and len(results['qsd']['xep']):
results['xep'] = \
NotifyXMPP.parse_list(results['qsd']['xep'])
# Over-ride the default (and detected) jid
if 'jid' in results['qsd'] and len(results['qsd']['jid']):
results['jid'] = NotifyXMPP.unquote(results['qsd']['jid'])
# Over-ride the default (and detected) jid
if 'to' in results['qsd'] and len(results['qsd']['to']):
results['targets'] += \
NotifyXMPP.parse_list(results['qsd']['to'])
return results