mirror of
https://github.com/correl/SleekXMPP.git
synced 2024-11-27 19:19:54 +00:00
141 lines
4.6 KiB
Python
141 lines
4.6 KiB
Python
"""
|
|
SleekXMPP: The Sleek XMPP Library
|
|
Copyright (C) 2010 Nathanael C. Fritz
|
|
This file is part of SleekXMPP.
|
|
|
|
See the file LICENSE for copying permission.
|
|
"""
|
|
|
|
from __future__ import absolute_import
|
|
|
|
import logging
|
|
import base64
|
|
import sys
|
|
import hashlib
|
|
|
|
from sleekxmpp import plugins
|
|
from sleekxmpp import stanza
|
|
from sleekxmpp.basexmpp import BaseXMPP, SRV_SUPPORT
|
|
from sleekxmpp.xmlstream import XMLStream, RestartStream
|
|
from sleekxmpp.xmlstream import StanzaBase, ET
|
|
from sleekxmpp.xmlstream.matcher import *
|
|
from sleekxmpp.xmlstream.handler import *
|
|
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class ComponentXMPP(BaseXMPP):
|
|
|
|
"""
|
|
SleekXMPP's basic XMPP server component.
|
|
|
|
Use only for good, not for evil.
|
|
|
|
Methods:
|
|
connect -- Overrides XMLStream.connect.
|
|
incoming_filter -- Overrides XMLStream.incoming_filter.
|
|
start_stream_handler -- Overrides XMLStream.start_stream_handler.
|
|
"""
|
|
|
|
def __init__(self, jid, secret, host, port,
|
|
plugin_config={}, plugin_whitelist=[], use_jc_ns=False):
|
|
"""
|
|
Arguments:
|
|
jid -- The JID of the component.
|
|
secret -- The secret or password for the component.
|
|
host -- The server accepting the component.
|
|
port -- The port used to connect to the server.
|
|
plugin_config -- A dictionary of plugin configurations.
|
|
plugin_whitelist -- A list of desired plugins to load
|
|
when using register_plugins.
|
|
use_js_ns -- Indicates if the 'jabber:client' namespace
|
|
should be used instead of the standard
|
|
'jabber:component:accept' namespace.
|
|
Defaults to False.
|
|
"""
|
|
if use_jc_ns:
|
|
default_ns = 'jabber:client'
|
|
else:
|
|
default_ns = 'jabber:component:accept'
|
|
BaseXMPP.__init__(self, default_ns)
|
|
|
|
self.auto_authorize = None
|
|
self.stream_header = "<stream:stream %s %s to='%s'>" % (
|
|
'xmlns="jabber:component:accept"',
|
|
'xmlns:stream="%s"' % self.stream_ns,
|
|
jid)
|
|
self.stream_footer = "</stream:stream>"
|
|
self.server_host = host
|
|
self.server_port = port
|
|
self.set_jid(jid)
|
|
self.secret = secret
|
|
self.plugin_config = plugin_config
|
|
self.plugin_whitelist = plugin_whitelist
|
|
self.is_component = True
|
|
|
|
self.register_handler(
|
|
Callback('Handshake',
|
|
MatchXPath('{jabber:component:accept}handshake'),
|
|
self._handle_handshake))
|
|
|
|
def connect(self):
|
|
"""
|
|
Connect to the server.
|
|
|
|
Overrides XMLStream.connect.
|
|
"""
|
|
log.debug("Connecting to %s:%s" % (self.server_host,
|
|
self.server_port))
|
|
return XMLStream.connect(self, self.server_host,
|
|
self.server_port)
|
|
|
|
def incoming_filter(self, xml):
|
|
"""
|
|
Pre-process incoming XML stanzas by converting any 'jabber:client'
|
|
namespaced elements to the component's default namespace.
|
|
|
|
Overrides XMLStream.incoming_filter.
|
|
|
|
Arguments:
|
|
xml -- The XML stanza to pre-process.
|
|
"""
|
|
if xml.tag.startswith('{jabber:client}'):
|
|
xml.tag = xml.tag.replace('jabber:client', self.default_ns)
|
|
|
|
# The incoming_filter call is only made on top level stanza
|
|
# elements. So we manually continue filtering on sub-elements.
|
|
for sub in xml:
|
|
self.incoming_filter(sub)
|
|
|
|
return xml
|
|
|
|
def start_stream_handler(self, xml):
|
|
"""
|
|
Once the streams are established, attempt to handshake
|
|
with the server to be accepted as a component.
|
|
|
|
Overrides XMLStream.start_stream_handler.
|
|
|
|
Arguments:
|
|
xml -- The incoming stream's root element.
|
|
"""
|
|
# Construct a hash of the stream ID and the component secret.
|
|
sid = xml.get('id', '')
|
|
pre_hash = '%s%s' % (sid, self.secret)
|
|
if sys.version_info >= (3, 0):
|
|
# Handle Unicode byte encoding in Python 3.
|
|
pre_hash = bytes(pre_hash, 'utf-8')
|
|
|
|
handshake = ET.Element('{jabber:component:accept}handshake')
|
|
handshake.text = hashlib.sha1(pre_hash).hexdigest().lower()
|
|
self.send_xml(handshake)
|
|
|
|
def _handle_handshake(self, xml):
|
|
"""
|
|
The handshake has been accepted.
|
|
|
|
Arguments:
|
|
xml -- The reply handshake stanza.
|
|
"""
|
|
self.event("session_start")
|