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430 lines
14 KiB
430 lines
14 KiB
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2019 Chris Caron <lead2gold@gmail.com>
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# All rights reserved.
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#
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# This code is licensed under the MIT License.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files(the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions :
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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import re
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import ssl
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from os.path import isfile
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from .NotifyBase import NotifyBase
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from ..URLBase import PrivacyMode
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from ..common import NotifyType
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from ..utils import parse_list
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from ..AppriseLocale import gettext_lazy as _
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# xep string parser
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XEP_PARSE_RE = re.compile('^[^1-9]*(?P<xep>[1-9][0-9]{0,3})$')
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# Default our global support flag
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NOTIFY_XMPP_SUPPORT_ENABLED = False
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# Taken from https://golang.org/src/crypto/x509/root_linux.go
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CA_CERTIFICATE_FILE_LOCATIONS = [
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# Debian/Ubuntu/Gentoo etc.
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"/etc/ssl/certs/ca-certificates.crt",
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# Fedora/RHEL 6
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"/etc/pki/tls/certs/ca-bundle.crt",
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# OpenSUSE
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"/etc/ssl/ca-bundle.pem",
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# OpenELEC
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"/etc/pki/tls/cacert.pem",
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# CentOS/RHEL 7
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"/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem",
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]
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try:
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# Import sleekxmpp if available
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import sleekxmpp
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NOTIFY_XMPP_SUPPORT_ENABLED = True
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except ImportError:
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# No problem; we just simply can't support this plugin because we're
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# either using Linux, or simply do not have sleekxmpp installed.
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pass
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class NotifyXMPP(NotifyBase):
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"""
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A wrapper for XMPP Notifications
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"""
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# The default descriptive name associated with the Notification
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service_name = 'XMPP'
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# The default protocol
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protocol = 'xmpp'
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# The default secure protocol
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secure_protocol = 'xmpps'
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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_xmpp'
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# The default XMPP port
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default_unsecure_port = 5222
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# The default XMPP secure port
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default_secure_port = 5223
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# XMPP does not support a title
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title_maxlen = 0
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# This entry is a bit hacky, but it allows us to unit-test this library
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# in an environment that simply doesn't have the sleekxmpp package
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# available to us.
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#
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# If anyone is seeing this had knows a better way of testing this
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# outside of what is defined in test/test_xmpp_plugin.py, please
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# let me know! :)
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_enabled = NOTIFY_XMPP_SUPPORT_ENABLED
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# Define object templates
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templates = (
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'{schema}://{host}',
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'{schema}://{password}@{host}',
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'{schema}://{password}@{host}:{port}',
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'{schema}://{user}:{password}@{host}',
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'{schema}://{user}:{password}@{host}:{port}',
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'{schema}://{host}/{targets}',
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'{schema}://{password}@{host}/{targets}',
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'{schema}://{password}@{host}:{port}/{targets}',
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'{schema}://{user}:{password}@{host}/{targets}',
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'{schema}://{user}:{password}@{host}:{port}/{targets}',
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)
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# Define our 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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'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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'user': {
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'name': _('Username'),
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'type': 'string',
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},
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'password': {
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'name': _('Password'),
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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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'target_jid': {
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'name': _('Target JID'),
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'type': 'string',
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'map_to': 'targets',
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},
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'targets': {
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'name': _('Targets'),
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'type': 'list:string',
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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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'to': {
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'alias_of': 'targets',
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},
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'xep': {
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'name': _('XEP'),
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'type': 'list:string',
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'prefix': 'xep-',
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'regex': (r'^[1-9][0-9]{0,3}$', 'i'),
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},
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'jid': {
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'name': _('Source JID'),
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'type': 'string',
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},
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})
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def __init__(self, targets=None, jid=None, xep=None, **kwargs):
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"""
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Initialize XMPP Object
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"""
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super(NotifyXMPP, self).__init__(**kwargs)
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# JID Details:
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# - JID's normally have an @ symbol in them, but it is not required
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# - Each allowable portion of a JID MUST NOT be more than 1023 bytes
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# in length.
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# - JID's can identify resource paths at the end separated by slashes
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# hence the following is valid: user@example.com/resource/path
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# Since JID's can clash with URLs offered by aprise (specifically the
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# resource paths we need to allow users an alternative character to
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# represent the slashes. The grammer is defined here:
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# https://xmpp.org/extensions/xep-0029.html as follows:
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#
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# <JID> ::= [<node>"@"]<domain>["/"<resource>]
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# <node> ::= <conforming-char>[<conforming-char>]*
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# <domain> ::= <hname>["."<hname>]*
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# <resource> ::= <any-char>[<any-char>]*
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# <hname> ::= <let>|<dig>[[<let>|<dig>|"-"]*<let>|<dig>]
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# <let> ::= [a-z] | [A-Z]
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# <dig> ::= [0-9]
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# <conforming-char> ::= #x21 | [#x23-#x25] | [#x28-#x2E] |
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# [#x30-#x39] | #x3B | #x3D | #x3F |
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# [#x41-#x7E] | [#x80-#xD7FF] |
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# [#xE000-#xFFFD] | [#x10000-#x10FFFF]
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# <any-char> ::= [#x20-#xD7FF] | [#xE000-#xFFFD] |
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# [#x10000-#x10FFFF]
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# The best way to do this is to choose characters that aren't allowed
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# in this case we will use comma and/or space.
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# Assemble our jid using the information available to us:
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self.jid = jid
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if not (self.user or self.password):
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# you must provide a jid/pass for this to work; if no password
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# is specified then the user field acts as the password instead
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# so we know that if there is no user specified, our url was
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# really busted up.
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msg = 'You must specify a XMPP password'
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self.logger.warning(msg)
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raise TypeError(msg)
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# See https://xmpp.org/extensions/ for details on xep values
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if xep is None:
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# Default xep setting
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self.xep = [
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# xep_0030: Service Discovery
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30,
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# xep_0199: XMPP Ping
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199,
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]
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else:
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# Prepare the list
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_xep = parse_list(xep)
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self.xep = []
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for xep in _xep:
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result = XEP_PARSE_RE.match(xep)
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if result is not None:
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self.xep.append(int(result.group('xep')))
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else:
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self.logger.warning(
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"Could not load XMPP xep {}".format(xep))
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# By default we send ourselves a message
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if targets:
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self.targets = parse_list(targets)
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else:
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self.targets = list()
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def send(self, body, title='', notify_type=NotifyType.INFO, **kwargs):
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"""
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Perform XMPP Notification
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"""
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if not self._enabled:
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self.logger.warning(
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'XMPP Notifications are not supported by this system '
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'- install sleekxmpp.')
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return False
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# Detect our JID if it isn't otherwise specified
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jid = self.jid
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password = self.password
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if not jid:
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if self.user and self.password:
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# xmpp://user:password@hostname
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jid = '{}@{}'.format(self.user, self.host)
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else:
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# xmpp://password@hostname
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jid = self.host
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password = self.password if self.password else self.user
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# Prepare our object
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xmpp = sleekxmpp.ClientXMPP(jid, password)
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for xep in self.xep:
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# Load xep entries
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xmpp.register_plugin('xep_{0:04d}'.format(xep))
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if self.secure:
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xmpp.ssl_version = ssl.PROTOCOL_TLSv1
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# If the python version supports it, use highest TLS version
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# automatically
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if hasattr(ssl, "PROTOCOL_TLS"):
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# Use the best version of TLS available to us
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xmpp.ssl_version = ssl.PROTOCOL_TLS
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xmpp.ca_certs = None
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if self.verify_certificate:
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# Set the ca_certs variable for certificate verification
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xmpp.ca_certs = next(
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(cert for cert in CA_CERTIFICATE_FILE_LOCATIONS
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if isfile(cert)), None)
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if xmpp.ca_certs is None:
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self.logger.warning(
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'XMPP Secure comunication can not be verified; '
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'no CA certificate found')
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# Acquire our port number
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if not self.port:
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port = self.default_secure_port \
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if self.secure else self.default_unsecure_port
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else:
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port = self.port
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# Establish our connection
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if not xmpp.connect((self.host, port)):
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return False
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xmpp.send_presence()
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try:
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xmpp.get_roster()
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except sleekxmpp.exceptions.IqError as e:
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self.logger.warning('There was an error getting the XMPP roster.')
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self.logger.debug(e.iq['error']['condition'])
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xmpp.disconnect()
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return False
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except sleekxmpp.exceptions.IqTimeout:
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self.logger.warning('XMPP Server is taking too long to respond.')
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xmpp.disconnect()
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return False
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targets = list(self.targets)
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if not targets:
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# We always default to notifying ourselves
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targets.append(jid)
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while len(targets) > 0:
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# Get next target (via JID)
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target = targets.pop(0)
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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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# The message we wish to send, and the JID that
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# will receive it.
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xmpp.send_message(mto=target, mbody=body, mtype='chat')
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# Using wait=True ensures that the send queue will be
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# emptied before ending the session.
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xmpp.disconnect(wait=True)
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return True
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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 arguments set
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args = {
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'format': self.notify_format,
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'overflow': self.overflow_mode,
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'verify': 'yes' if self.verify_certificate else 'no',
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}
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if self.jid:
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args['jid'] = self.jid
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if self.xep:
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# xep are integers, so we need to just iterate over a list and
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# switch them to a string
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args['xep'] = ','.join([str(xep) for xep in self.xep])
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# Target JID(s) can clash with our existing paths, so we just use comma
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# and/or space as a delimiters - %20 = space
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jids = '%20'.join([NotifyXMPP.quote(x, safe='') for x in self.targets])
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default_port = self.default_secure_port \
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if self.secure else self.default_unsecure_port
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default_schema = self.secure_protocol if self.secure else self.protocol
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if self.user and self.password:
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auth = '{user}:{password}'.format(
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user=NotifyXMPP.quote(self.user, safe=''),
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password=self.pprint(
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self.password, privacy, mode=PrivacyMode.Secret, safe=''))
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else:
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auth = self.pprint(
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self.password if self.password else self.user, privacy,
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mode=PrivacyMode.Secret, safe='')
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return '{schema}://{auth}@{hostname}{port}/{jids}?{args}'.format(
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auth=auth,
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schema=default_schema,
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hostname=NotifyXMPP.quote(self.host, safe=''),
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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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jids=jids,
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args=NotifyXMPP.urlencode(args),
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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 substantiate 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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# Get our targets; we ignore path slashes since they identify
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# our resources
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results['targets'] = NotifyXMPP.parse_list(results['fullpath'])
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# Over-ride the xep plugins
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if 'xep' in results['qsd'] and len(results['qsd']['xep']):
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results['xep'] = \
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NotifyXMPP.parse_list(results['qsd']['xep'])
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# Over-ride the default (and detected) jid
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if 'jid' in results['qsd'] and len(results['qsd']['jid']):
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results['jid'] = NotifyXMPP.unquote(results['qsd']['jid'])
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# Over-ride the default (and detected) jid
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if 'to' in results['qsd'] and len(results['qsd']['to']):
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results['targets'] += \
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NotifyXMPP.parse_list(results['qsd']['to'])
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return results
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