slixmpp/sleekxmpp/basexmpp.py
Lance Stout c004f042f9 Added del_event_handler to remove handler functions for a given event.
All registered handlers for the event which use the given function will
be removed.

Using this method allows agents to reconfigure their behaviour on the fly
without needing to add extra state information to event handling functions.
2010-05-21 03:54:48 +08:00

307 lines
11 KiB
Python

"""
SleekXMPP: The Sleek XMPP Library
Copyright (C) 2010 Nathanael C. Fritz
This file is part of SleekXMPP.
See the file license.txt for copying permission.
"""
from __future__ import with_statement, unicode_literals
from xml.etree import cElementTree as ET
from . xmlstream.xmlstream import XMLStream
from . xmlstream.matcher.xmlmask import MatchXMLMask
from . xmlstream.matcher.many import MatchMany
from . xmlstream.handler.xmlcallback import XMLCallback
from . xmlstream.handler.xmlwaiter import XMLWaiter
from . xmlstream.handler.waiter import Waiter
from . xmlstream.handler.callback import Callback
from . import plugins
from . stanza.message import Message
from . stanza.iq import Iq
from . stanza.presence import Presence
from . stanza.roster import Roster
from . stanza.nick import Nick
from . stanza.htmlim import HTMLIM
from . stanza.error import Error
import logging
import threading
import sys
if sys.version_info < (3,0):
reload(sys)
sys.setdefaultencoding('utf8')
def stanzaPlugin(stanza, plugin):
stanza.plugin_attrib_map[plugin.plugin_attrib] = plugin
stanza.plugin_tag_map["{%s}%s" % (plugin.namespace, plugin.name)] = plugin
class basexmpp(object):
def __init__(self):
self.id = 0
self.id_lock = threading.Lock()
self.sentpresence = False
self.fulljid = ''
self.resource = ''
self.jid = ''
self.username = ''
self.server = ''
self.plugin = {}
self.auto_authorize = True
self.auto_subscribe = True
self.event_handlers = {}
self.roster = {}
self.registerHandler(Callback('IM', MatchXMLMask("<message xmlns='%s'><body /></message>" % self.default_ns), self._handleMessage))
self.registerHandler(Callback('Presence', MatchXMLMask("<presence xmlns='%s' />" % self.default_ns), self._handlePresence))
self.add_event_handler('presence_subscribe', self._handlePresenceSubscribe)
self.registerStanza(Message)
self.registerStanza(Iq)
self.registerStanza(Presence)
self.stanzaPlugin(Iq, Roster)
self.stanzaPlugin(Message, Nick)
self.stanzaPlugin(Message, HTMLIM)
def stanzaPlugin(self, stanza, plugin):
stanza.plugin_attrib_map[plugin.plugin_attrib] = plugin
stanza.plugin_tag_map["{%s}%s" % (plugin.namespace, plugin.name)] = plugin
def Message(self, *args, **kwargs):
return Message(self, *args, **kwargs)
def Iq(self, *args, **kwargs):
return Iq(self, *args, **kwargs)
def Presence(self, *args, **kwargs):
return Presence(self, *args, **kwargs)
def set_jid(self, jid):
"""Rip a JID apart and claim it as our own."""
self.fulljid = jid
self.resource = self.getjidresource(jid)
self.jid = self.getjidbare(jid)
self.username = jid.split('@', 1)[0]
self.server = jid.split('@',1)[-1].split('/', 1)[0]
def registerPlugin(self, plugin, pconfig = {}):
"""Register a plugin not in plugins.__init__.__all__ but in the plugins
directory."""
# discover relative "path" to the plugins module from the main app, and import it.
# TODO:
# gross, this probably isn't necessary anymore, especially for an installed module
__import__("%s.%s" % (globals()['plugins'].__name__, plugin))
# init the plugin class
self.plugin[plugin] = getattr(getattr(plugins, plugin), plugin)(self, pconfig) # eek
# all of this for a nice debug? sure.
xep = ''
if hasattr(self.plugin[plugin], 'xep'):
xep = "(XEP-%s) " % self.plugin[plugin].xep
logging.debug("Loaded Plugin %s%s" % (xep, self.plugin[plugin].description))
def register_plugins(self):
"""Initiates all plugins in the plugins/__init__.__all__"""
if self.plugin_whitelist:
plugin_list = self.plugin_whitelist
else:
plugin_list = plugins.__all__
for plugin in plugin_list:
if plugin in plugins.__all__:
self.registerPlugin(plugin, self.plugin_config.get(plugin, {}))
else:
raise NameError("No plugin by the name of %s listed in plugins.__all__." % plugin)
# run post_init() for cross-plugin interaction
for plugin in self.plugin:
self.plugin[plugin].post_init()
def getNewId(self):
with self.id_lock:
self.id += 1
return self.getId()
def add_handler(self, mask, pointer, disposable=False, threaded=False, filter=False, instream=False):
#logging.warning("Deprecated add_handler used for %s: %s." % (mask, pointer))
self.registerHandler(XMLCallback('add_handler_%s' % self.getNewId(), MatchXMLMask(mask), pointer, threaded, disposable, instream))
def getId(self):
return "%x".upper() % self.id
def sendXML(self, data, mask=None, timeout=10):
return self.send(self.tostring(data), mask, timeout)
def send(self, data, mask=None, timeout=10):
#logging.warning("Deprecated send used for \"%s\"" % (data,))
#if not type(data) == type(''):
# data = self.tostring(data)
if hasattr(mask, 'xml'):
mask = mask.xml
data = str(data)
if mask is not None:
logging.warning("Use of send mask waiters is deprecated")
waitfor = Waiter('SendWait_%s' % self.getNewId(), MatchXMLMask(mask))
self.registerHandler(waitfor)
self.sendRaw(data)
if mask is not None:
return waitfor.wait(timeout)
def makeIq(self, id=0, ifrom=None):
return self.Iq().setValues({'id': id, 'from': ifrom})
def makeIqGet(self, queryxmlns = None):
iq = self.Iq().setValues({'type': 'get'})
if queryxmlns:
iq.append(ET.Element("{%s}query" % queryxmlns))
return iq
def makeIqResult(self, id):
return self.Iq().setValues({'id': id, 'type': 'result'})
def makeIqSet(self, sub=None):
iq = self.Iq().setValues({'type': 'set'})
if sub != None:
iq.append(sub)
return iq
def makeIqError(self, id, type='cancel', condition='feature-not-implemented', text=None):
iq = self.Iq().setValues({'id': id})
iq['error'].setValues({'type': type, 'condition': condition, 'text': text})
return iq
def makeIqQuery(self, iq, xmlns):
query = ET.Element("{%s}query" % xmlns)
iq.append(query)
return iq
def makeQueryRoster(self, iq=None):
query = ET.Element("{jabber:iq:roster}query")
if iq:
iq.append(query)
return query
def add_event_handler(self, name, pointer, threaded=False, disposable=False):
if not name in self.event_handlers:
self.event_handlers[name] = []
self.event_handlers[name].append((pointer, threaded, disposable))
def del_event_handler(self, name, pointer):
"""Remove a handler for an event."""
if not name in self.event_handlers:
return
# Need to keep handlers that do not use
# the given function pointer
def filter_pointers(handler):
return handler[0] != pointer
self.event_handlers[name] = filter(filter_pointers,
self.event_handlers[name])
def event(self, name, eventdata = {}): # called on an event
for handler in self.event_handlers.get(name, []):
if handler[1]: #if threaded
#thread.start_new(handler[0], (eventdata,))
x = threading.Thread(name="Event_%s" % str(handler[0]), target=handler[0], args=(eventdata,))
x.start()
else:
handler[0](eventdata)
if handler[2]: #disposable
with self.lock:
self.event_handlers[name].pop(self.event_handlers[name].index(handler))
def makeMessage(self, mto, mbody=None, msubject=None, mtype=None, mhtml=None, mfrom=None, mnick=None):
message = self.Message(sto=mto, stype=mtype, sfrom=mfrom)
message['body'] = mbody
message['subject'] = msubject
if mnick is not None: message['nick'] = mnick
if mhtml is not None: message['html']['html'] = mhtml
return message
def makePresence(self, pshow=None, pstatus=None, ppriority=None, pto=None, ptype=None, pfrom=None):
presence = self.Presence(stype=ptype, sfrom=pfrom, sto=pto)
if pshow is not None: presence['type'] = pshow
if pfrom is None: #maybe this should be done in stanzabase
presence['from'] = self.fulljid
presence['priority'] = ppriority
presence['status'] = pstatus
return presence
def sendMessage(self, mto, mbody, msubject=None, mtype=None, mhtml=None, mfrom=None, mnick=None):
self.send(self.makeMessage(mto,mbody,msubject,mtype,mhtml,mfrom,mnick))
def sendPresence(self, pshow=None, pstatus=None, ppriority=None, pto=None, pfrom=None, ptype=None):
self.send(self.makePresence(pshow,pstatus,ppriority,pto, ptype=ptype, pfrom=pfrom))
if not self.sentpresence:
self.event('sent_presence')
self.sentpresence = True
def sendPresenceSubscription(self, pto, pfrom=None, ptype='subscribe', pnick=None) :
presence = self.makePresence(ptype=ptype, pfrom=pfrom, pto=self.getjidbare(pto))
if pnick :
nick = ET.Element('{http://jabber.org/protocol/nick}nick')
nick.text = pnick
presence.append(nick)
self.send(presence)
def getjidresource(self, fulljid):
if '/' in fulljid:
return fulljid.split('/', 1)[-1]
else:
return ''
def getjidbare(self, fulljid):
return fulljid.split('/', 1)[0]
def _handleMessage(self, msg):
self.event('message', msg)
def _handlePresence(self, presence):
"""Update roster items based on presence"""
self.event("presence_%s" % presence['type'], presence)
if presence['type'] in ('subscribe', 'subscribed', 'unsubscribe', 'unsubscribed'):
self.event('changed_subscription', presence)
return
elif not presence['type'] in ('available', 'unavailable') and not presence['type'] in presence.showtypes:
return
jid = presence['from'].bare
resource = presence['from'].resource
show = presence['type']
status = presence['status']
priority = presence['priority']
wasoffline = False
oldroster = self.roster.get(jid, {}).get(resource, {})
if not presence['from'].bare in self.roster:
self.roster[jid] = {'groups': [], 'name': '', 'subscription': 'none', 'presence': {}, 'in_roster': False}
if not resource in self.roster[jid]['presence']:
if (show == 'available' or show in presence.showtypes):
self.event("got_online", presence)
wasoffline = True
self.roster[jid]['presence'][resource] = {}
if self.roster[jid]['presence'][resource].get('show', 'unavailable') == 'unavailable':
wasoffline = True
self.roster[jid]['presence'][resource] = {'show': show, 'status': status, 'priority': priority}
name = self.roster[jid].get('name', '')
if show == 'unavailable':
logging.debug("%s %s got offline" % (jid, resource))
del self.roster[jid]['presence'][resource]
if len(self.roster[jid]['presence']) == 0 and not self.roster[jid]['in_roster']:
del self.roster[jid]
if not wasoffline:
self.event("got_offline", presence)
else:
return False
self.event("changed_status", presence)
name = ''
if name:
name = "(%s) " % name
logging.debug("STATUS: %s%s/%s[%s]: %s" % (name, jid, resource, show,status))
def _handlePresenceSubscribe(self, presence):
"""Handling subscriptions automatically."""
if self.auto_authorize == True:
self.send(self.makePresence(ptype='subscribed', pto=presence['from'].bare))
if self.auto_subscribe:
self.send(self.makePresence(ptype='subscribe', pto=presence['from'].bare))
elif self.auto_authorize == False:
self.send(self.makePresence(ptype='unsubscribed', pto=presence['from'].bare))