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	diff --git a/sipsimple/account/__init__.py b/sipsimple/account/__init__.py
	index 3248b056..e1b9c7ee 100644
	--- a/sipsimple/account/__init__.py
	+++ b/sipsimple/account/__init__.py
	@@ -1,679 +1,675 @@
	# Copyright (C) 2008-2012 AG Projects. See LICENSE for details.
	#

	"""
	Implements a SIP Account management system that allows the definition of
	multiple SIP accounts and their properties.
	"""

	__all__ = ['Account', 'BonjourAccount', 'AccountManager']

	from itertools import chain
	from threading import Lock

	from application.notification import IObserver, NotificationCenter
	from application.python import Null
	from application.python.decorator import execute_once
	from application.python.descriptor import classproperty
	from application.python.types import Singleton
	from application.system import host as Host
	from eventlet import proc
	from gnutls.crypto import X509Certificate, X509PrivateKey
	from gnutls.interfaces.twisted import X509Credentials
	from zope.interface import implements

	from sipsimple.account.bonjour import BonjourServices, _bonjour
	from sipsimple.account.registration import Registrar
	from sipsimple.account.subscription import MWISubscriber, PresenceWinfoSubscriber, DialogWinfoSubscriber
	from sipsimple.account.xcap import XCAPManager
	from sipsimple.core import Credentials, SIPURI, ContactURIFactory
	from sipsimple.configuration import ConfigurationManager, Setting, SettingsGroup, SettingsObject, SettingsObjectID
	from sipsimple.configuration.datatypes import AudioCodecList, MSRPConnectionModel, MSRPRelayAddress, MSRPTransport, NonNegativeInteger, Path, SIPAddress, SIPProxyAddress, SRTPEncryption, STUNServerAddressList, XCAPRoot
	from sipsimple.configuration.settings import SIPSimpleSettings
	from sipsimple.payloads import ParserError
	from sipsimple.payloads.messagesummary import MessageSummary
	from sipsimple.payloads.watcherinfo import WatcherInfoDocument
	from sipsimple.threading import call_in_thread
	from sipsimple.threading.green import call_in_green_thread, run_in_green_thread
	from sipsimple.util import TimestampedNotificationData, user_info



	class AuthSettings(SettingsGroup):
	username = Setting(type=str, default=None, nillable=True)
	password = Setting(type=str, default='')


	class SIPSettings(SettingsGroup):
	always_use_my_proxy = Setting(type=bool, default=False)
	outbound_proxy = Setting(type=SIPProxyAddress, default=None, nillable=True)
	register = Setting(type=bool, default=True)
	register_interval = Setting(type=NonNegativeInteger, default=3600)
	subscribe_interval = Setting(type=NonNegativeInteger, default=3600)
	publish_interval = Setting(type=NonNegativeInteger, default=3600)


	class RTPSettings(SettingsGroup):
	audio_codec_list = Setting(type=AudioCodecList, default=None, nillable=True)
	srtp_encryption = Setting(type=SRTPEncryption, default='disabled')
	use_srtp_without_tls = Setting(type=bool, default=False)


	class DialogEventSettings(SettingsGroup):
	enabled = Setting(type=bool, default=False)


	class NATTraversalSettings(SettingsGroup):
	use_ice = Setting(type=bool, default=False)
	stun_server_list = Setting(type=STUNServerAddressList, default=None, nillable=True)
	msrp_relay = Setting(type=MSRPRelayAddress, default=None, nillable=True)
	use_msrp_relay_for_outbound = Setting(type=bool, default=False)


	class MessageSummarySettings(SettingsGroup):
	enabled = Setting(type=bool, default=False)
	voicemail_uri = Setting(type=SIPAddress, default=None, nillable=True)


	class XCAPSettings(SettingsGroup):
	enabled = Setting(type=bool, default=False)
	discovered = Setting(type=bool, default=False)
	xcap_root = Setting(type=XCAPRoot, default=None, nillable=True)


	class PresenceSettings(SettingsGroup):
	enabled = Setting(type=bool, default=False)
	use_rls = Setting(type=bool, default=False)


	class TLSSettings(SettingsGroup):
	certificate = Setting(type=Path, default=None, nillable=True)
	verify_server = Setting(type=bool, default=False)


	class MSRPSettings(SettingsGroup):
	transport = Setting(type=MSRPTransport, default='tls')
	connection_model = Setting(type=MSRPConnectionModel, default='relay')


	class Account(SettingsObject):
	"""
	Object represeting a SIP account. Contains configuration settings and
	attributes for accessing SIP related objects.

	When the account is active, it will register, publish its presence and
	subscribe to watcher-info events depending on its settings.

	If the object is unpickled and its enabled flag was set, it will
	automatically activate.

	When the save method is called, depending on the value of the enabled flag,
	the account will activate/deactivate.

	Notifications sent by instances of Account:
	* CFGSettingsObjectWasCreated
	* CFGSettingsObjectWasActivated
	* CFGSettingsObjectWasDeleted
	* CFGSettingsObjectDidChange
	* SIPAccountWillActivate
	* SIPAccountDidActivate
	* SIPAccountWillDeactivate
	* SIPAccountDidDeactivate
	"""

	implements(IObserver)

	__group__ = 'Accounts'
	__id__ = SettingsObjectID(type=SIPAddress)

	id = __id__
	enabled = Setting(type=bool, default=False)
	display_name = Setting(type=unicode, default=None, nillable=True)

	auth = AuthSettings
	sip = SIPSettings
	rtp = RTPSettings
	dialog_event = DialogEventSettings
	nat_traversal = NATTraversalSettings
	message_summary = MessageSummarySettings
	msrp = MSRPSettings
	presence = PresenceSettings
	xcap = XCAPSettings
	tls = TLSSettings

	def __new__(cls, id):
	with AccountManager.load.lock:
	if not AccountManager.load.called:
	raise RuntimeError("cannot instantiate %s before calling AccountManager.load" % cls.__name__)
	return SettingsObject.__new__(cls, id)

	def __init__(self, id):
	self.contact = ContactURIFactory()
	self.xcap_manager = XCAPManager(self)
	self._active = False
	self._mwi_voicemail_uri = None
	self._registrar = Registrar(self)
	self._mwi_subscriber = MWISubscriber(self)
	self._pwi_subscriber = PresenceWinfoSubscriber(self)
	self._dwi_subscriber = DialogWinfoSubscriber(self)
	self._started = False

	def start(self):
	if self._started:
	return
	self._started = True

	notification_center = NotificationCenter()
	notification_center.add_observer(self, name='CFGSettingsObjectDidChange', sender=self)
	notification_center.add_observer(self, name='CFGSettingsObjectDidChange', sender=SIPSimpleSettings())
	notification_center.add_observer(self, name='XCAPManagerDidDiscoverServerCapabilities', sender=self.xcap_manager)
	notification_center.add_observer(self, sender=self._mwi_subscriber)
	notification_center.add_observer(self, sender=self._pwi_subscriber)
	notification_center.add_observer(self, sender=self._dwi_subscriber)

	self.xcap_manager.init()
	if self.enabled:
	self._activate()

	def stop(self):
	if not self._started:
	return
	self._started = False

	self._deactivate()

	notification_center = NotificationCenter()
	notification_center.remove_observer(self, name='CFGSettingsObjectDidChange', sender=self)
	notification_center.remove_observer(self, name='CFGSettingsObjectDidChange', sender=SIPSimpleSettings())
	notification_center.remove_observer(self, name='XCAPManagerDidDiscoverServerCapabilities', sender=self.xcap_manager)
	notification_center.remove_observer(self, sender=self._mwi_subscriber)
	notification_center.remove_observer(self, sender=self._pwi_subscriber)
	notification_center.remove_observer(self, sender=self._dwi_subscriber)

	@run_in_green_thread
	def delete(self):
	self.stop()
	self._registrar = None
	self._mwi_subscriber = None
	self._pwi_subscriber = None
	self._dwi_subscriber = None
	self.xcap_manager = None
	SettingsObject.delete(self)

	@run_in_green_thread
	def reregister(self):
	if self._started and self.sip.register:
	self._registrar.reregister()

	@property
	def credentials(self):
	return Credentials(self.auth.username or self.id.username, self.auth.password)

	@property
	def registered(self):
	return self._registrar.registered if self._registrar else False

	@property
	def mwi_active(self):
	return self._mwi_subscriber.subscribed if self._mwi_subscriber else False

	@property
	def tls_credentials(self):
	# This property can be optimized to cache the credentials it loads from disk,
	# however this is not a time consuming operation (~ 3000 req/sec). -Luci
	settings = SIPSimpleSettings()
	if self.tls.certificate is not None:
	certificate_data = open(self.tls.certificate.normalized).read()
	certificate = X509Certificate(certificate_data)
	private_key = X509PrivateKey(certificate_data)
	else:
	certificate = None
	private_key = None
	if settings.tls.ca_list is not None:
	# we should read all certificates in the file, rather than just the first -Luci
	trusted = [X509Certificate(open(settings.tls.ca_list.normalized).read())]
	else:
	trusted = []
	credentials = X509Credentials(certificate, private_key, trusted)
	credentials.verify_peer = self.tls.verify_server
	return credentials

	@property
	def uri(self):
	return SIPURI(user=self.id.username, host=self.id.domain)

	@property
	def voicemail_uri(self):
	return self._mwi_voicemail_uri or self.message_summary.voicemail_uri

	def handle_notification(self, notification):
	handler = getattr(self, '_NH_%s' % notification.name, Null)
	handler(notification)

	@run_in_green_thread
	def _NH_CFGSettingsObjectDidChange(self, notification):
	if self._started and 'enabled' in notification.data.modified:
	if self.enabled:
	self._activate()
	else:
	self._deactivate()

	def _NH_XCAPManagerDidDiscoverServerCapabilities(self, notification):
	if self._started and self.xcap.discovered is False:
	self.xcap.discovered = True
	self.save()
	- notification_center = NotificationCenter()
	- notification_center.post_notification('SIPAccountDidDiscoverXCAPSupport', sender=self, data=TimestampedNotificationData())
	+ notification.center.post_notification('SIPAccountDidDiscoverXCAPSupport', sender=self, data=TimestampedNotificationData())

	def _NH_MWISubscriberDidDeactivate(self, notification):
	self._mwi_voicemail_uri = None

	def _NH_MWISubscriptionGotNotify(self, notification):
	if notification.data.body and notification.data.content_type == MessageSummary.content_type:
	try:
	message_summary = MessageSummary.parse(notification.data.body)
	except ParserError:
	pass
	else:
	self._mwi_voicemail_uri = message_summary.message_account and SIPAddress(message_summary.message_account.replace('sip:', '', 1)) or None
	- notification_center = NotificationCenter()
	- notification_center.post_notification('SIPAccountGotMessageSummary', sender=self, data=TimestampedNotificationData(message_summary=message_summary))
	+ notification.center.post_notification('SIPAccountGotMessageSummary', sender=self, data=TimestampedNotificationData(message_summary=message_summary))

	def _NH_PresenceWinfoSubscriptionGotNotify(self, notification):
	if notification.data.body and notification.data.content_type == WatcherInfoDocument.content_type:
	try:
	watcher_info = WatcherInfoDocument.parse(notification.data.body)
	watcher_list = watcher_info['sip:' + self.id]
	except (ParserError, KeyError):
	pass
	else:
	if watcher_list.package == 'presence':
	data = TimestampedNotificationData(version=watcher_info.version, state=watcher_info.state, watcher_list=watcher_list)
	notification.center.post_notification('SIPAccountGotPresenceWinfo', sender=self, data=data)

	def _NH_DialogWinfoSubscriptionGotNotify(self, notification):
	if notification.data.body and notification.data.content_type == WatcherInfoDocument.content_type:
	try:
	watcher_info = WatcherInfoDocument.parse(notification.data.body)
	watcher_list = watcher_info['sip:' + self.id]
	except (ParserError, KeyError):
	pass
	else:
	if watcher_list.package == 'dialog':
	data = TimestampedNotificationData(version=watcher_info.version, state=watcher_info.state, watcher_list=watcher_list)
	notification.center.post_notification('SIPAccountGotDialogWinfo', sender=self, data=data)

	def _activate(self):
	if self._active:
	return
	notification_center = NotificationCenter()
	notification_center.post_notification('SIPAccountWillActivate', sender=self, data=TimestampedNotificationData())
	self._active = True
	self._registrar.start()
	self._mwi_subscriber.start()
	self._pwi_subscriber.start()
	self._dwi_subscriber.start()
	if self.xcap.enabled:
	self.xcap_manager.start()
	notification_center.post_notification('SIPAccountDidActivate', sender=self, data=TimestampedNotificationData())

	def _deactivate(self):
	if not self._active:
	return
	notification_center = NotificationCenter()
	notification_center.post_notification('SIPAccountWillDeactivate', sender=self, data=TimestampedNotificationData())
	self._active = False
	handlers = [self._registrar, self._mwi_subscriber, self._pwi_subscriber, self._dwi_subscriber, self.xcap_manager]
	proc.waitall([proc.spawn(handler.stop) for handler in handlers])
	notification_center.post_notification('SIPAccountDidDeactivate', sender=self, data=TimestampedNotificationData())

	def __repr__(self):
	return '%s(%r)' % (self.__class__.__name__, self.id)

	def __setstate__(self, data):
	# This restores the password from its previous location as a top level setting
	# after it was moved under the auth group.
	SettingsObject.__setstate__(self, data)
	if not data.get('auth', {}).get('password') and data.get('password'):
	self.auth.password = data.pop('password')
	self.save()


	class BonjourMSRPSettings(SettingsGroup):
	transport = Setting(type=MSRPTransport, default='tcp')


	class BonjourAccountEnabledSetting(Setting):
	def __get__(self, obj, objtype):
	if obj is None:
	return self
	return _bonjour.available and self.values.get(obj, self.default)

	def __set__(self, obj, value):
	if not _bonjour.available:
	raise RuntimeError('mdns support is not available')
	Setting.__set__(self, obj, value)


	class BonjourAccount(SettingsObject):
	"""
	Object represeting a bonjour account. Contains configuration settings and
	attributes for accessing bonjour related options.

	When the account is active, it will send broadcast its contact address on
	the LAN.

	If the object is unpickled and its enabled flag was set, it will
	automatically activate.

	When the save method is called, depending on the value of the enabled flag,
	the account will activate/deactivate.

	Notifications sent by instances of Account:
	* CFGSettingsObjectWasCreated
	* CFGSettingsObjectWasActivated
	* CFGSettingsObjectWasDeleted
	* CFGSettingsObjectDidChange
	* SIPAccountWillActivate
	* SIPAccountDidActivate
	* SIPAccountWillDeactivate
	* SIPAccountDidDeactivate
	"""

	implements(IObserver)

	__group__ = 'Accounts'
	__id__ = SIPAddress('bonjour@local')

	id = property(lambda self: self.__id__)
	enabled = BonjourAccountEnabledSetting(type=bool, default=True)
	display_name = Setting(type=unicode, default=user_info.fullname, nillable=False)

	rtp = RTPSettings
	msrp = BonjourMSRPSettings
	tls = TLSSettings

	def __new__(cls):
	with AccountManager.load.lock:
	if not AccountManager.load.called:
	raise RuntimeError("cannot instantiate %s before calling AccountManager.load" % cls.__name__)
	return SettingsObject.__new__(cls)

	def __init__(self):
	self.contact = ContactURIFactory()
	self.credentials = None

	self._active = False
	self._started = False
	self._bonjour_services = BonjourServices(self)

	# initialize nat settings
	self.nat_traversal = NATTraversalSettings()
	self.nat_traversal.use_ice = False
	self.nat_traversal.msrp_relay = None
	self.nat_traversal.use_msrp_relay_for_inbound = False
	self.nat_traversal.use_msrp_relay_for_outbound = False

	def start(self):
	if self._started:
	return
	self._started = True

	notification_center = NotificationCenter()
	notification_center.add_observer(self, name='CFGSettingsObjectDidChange', sender=self)
	notification_center.add_observer(self, name='CFGSettingsObjectDidChange', sender=SIPSimpleSettings())
	notification_center.add_observer(self, name='SIPAccountManagerDidChangeDefaultAccount')

	self._bonjour_services.start()
	if self.enabled:
	self._activate()

	def stop(self):
	if not self._started:
	return
	self._started = False

	self._deactivate()
	self._bonjour_services.stop()

	notification_center = NotificationCenter()
	notification_center.remove_observer(self, name='CFGSettingsObjectDidChange', sender=self)
	notification_center.remove_observer(self, name='CFGSettingsObjectDidChange', sender=SIPSimpleSettings())
	notification_center.remove_observer(self, name='SIPAccountManagerDidChangeDefaultAccount')

	@classproperty
	def mdns_available(cls):
	return _bonjour.available

	@property
	def registered(self):
	return False

	@property
	def tls_credentials(self):
	# This property can be optimized to cache the credentials it loads from disk,
	# however this is not a time consuming operation (~ 3000 req/sec). -Luci
	settings = SIPSimpleSettings()
	if self.tls.certificate is not None:
	certificate_data = open(self.tls.certificate.normalized).read()
	certificate = X509Certificate(certificate_data)
	private_key = X509PrivateKey(certificate_data)
	else:
	certificate = None
	private_key = None
	if settings.tls.ca_list is not None:
	# we should read all certificates in the file, rather than just the first -Luci
	trusted = [X509Certificate(open(settings.tls.ca_list.normalized).read())]
	else:
	trusted = []
	credentials = X509Credentials(certificate, private_key, trusted)
	credentials.verify_peer = self.tls.verify_server
	return credentials

	@property
	def uri(self):
	return SIPURI(user=self.contact.username, host=Host.default_ip)

	def handle_notification(self, notification):
	handler = getattr(self, '_NH_%s' % notification.name, Null)
	handler(notification)

	@run_in_green_thread
	def _NH_CFGSettingsObjectDidChange(self, notification):
	if self._started:
	if 'enabled' in notification.data.modified:
	if self.enabled:
	self._activate()
	else:
	self._deactivate()
	elif self.enabled:
	if 'display_name' in notification.data.modified:
	self._bonjour_services.update_registrations()
	if set(['sip.transport_list', 'tls.certificate']).intersection(notification.data.modified):
	self._bonjour_services.update_registrations()
	self._bonjour_services.restart_discovery()

	@run_in_green_thread
	def _NH_SIPAccountManagerDidChangeDefaultAccount(self, notification):
	# re-activate account as changing the default account has the side efect of restarting the TLS transport
	if self.enabled:
	self._deactivate()
	self._activate()

	def _activate(self):
	if self._active:
	return
	notification_center = NotificationCenter()
	notification_center.post_notification('SIPAccountWillActivate', sender=self, data=TimestampedNotificationData())
	self._active = True
	self._bonjour_services.activate()
	notification_center.post_notification('SIPAccountDidActivate', sender=self, data=TimestampedNotificationData())

	def _deactivate(self):
	if not self._active:
	return
	notification_center = NotificationCenter()
	notification_center.post_notification('SIPAccountWillDeactivate', sender=self, data=TimestampedNotificationData())
	self._active = False
	self._bonjour_services.deactivate()
	notification_center.post_notification('SIPAccountDidDeactivate', sender=self, data=TimestampedNotificationData())

	def __repr__(self):
	return '%s()' % self.__class__.__name__


	class AccountManager(object):
	"""
	This is a singleton object which manages all the SIP accounts. It is
	also used to manage the default account (the one used for outbound
	sessions) using the default_account attribute:

	manager = AccountManager()
	manager.default_account = manager.get_account('alice@example.net')

	The following notifications are sent:
	* SIPAccountManagerDidRemoveAccount
	* SIPAccountManagerDidAddAccount
	* SIPAccountManagerDidChangeDefaultAccount
	"""

	__metaclass__ = Singleton

	implements(IObserver)

	def __init__(self):
	self._lock = Lock()
	self.accounts = {}
	notification_center = NotificationCenter()
	notification_center.add_observer(self, name='CFGSettingsObjectWasActivated')
	notification_center.add_observer(self, name='CFGSettingsObjectWasCreated')

	@execute_once
	def load(self):
	"""
	Load all accounts from the configuration. The accounts will not be
	started until the start method is called.
	"""
	configuration = ConfigurationManager()
	bonjour_account = BonjourAccount()
	names = configuration.get_names([Account.__group__])
	[Account(id) for id in names if id != bonjour_account.id]
	default_account = self.default_account
	if default_account is None or not default_account.enabled:
	try:
	self.default_account = (account for account in self.accounts.itervalues() if account.enabled).next()
	except StopIteration:
	self.default_account = None

	def start(self):
	"""
	Start the accounts, which will determine the ones with the enabled flag
	set to activate.
	"""
	notification_center = NotificationCenter()
	notification_center.post_notification('SIPAccountManagerWillStart', sender=self, data=TimestampedNotificationData())
	proc.waitall([proc.spawn(account.start) for account in self.accounts.itervalues()])
	notification_center.post_notification('SIPAccountManagerDidStart', sender=self, data=TimestampedNotificationData())

	def stop(self):
	"""
	Stop the accounts, which will determine the ones that were enabled to
	deactivate. This method returns only once the accounts were stopped
	successfully or they timed out trying.
	"""
	notification_center = NotificationCenter()
	notification_center.post_notification('SIPAccountManagerWillEnd', sender=self, data=TimestampedNotificationData())
	proc.waitall([proc.spawn(account.stop) for account in self.accounts.itervalues()])
	notification_center.post_notification('SIPAccountManagerDidEnd', sender=self, data=TimestampedNotificationData())

	def has_account(self, id):
	return id in self.accounts

	def get_account(self, id):
	return self.accounts[id]

	def get_accounts(self):
	return self.accounts.values()

	def iter_accounts(self):
	return self.accounts.itervalues()

	def find_account(self, contact_uri):
	# compare contact_address with account contact
	exact_matches = (account for account in self.accounts.itervalues() if account.enabled and account.contact.username==contact_uri.user)
	# compare username in contact URI with account username
	loose_matches = (account for account in self.accounts.itervalues() if account.enabled and account.id.username==contact_uri.user)
	return chain(exact_matches, loose_matches, [None]).next()

	def handle_notification(self, notification):
	handler = getattr(self, '_NH_%s' % notification.name, Null)
	handler(notification)

	def _NH_CFGSettingsObjectWasActivated(self, notification):
	if isinstance(notification.sender, (Account, BonjourAccount)):
	account = notification.sender
	self.accounts[account.id] = account
	- notification_center = NotificationCenter()
	- notification_center.add_observer(self, sender=account, name='CFGSettingsObjectDidChange')
	- notification_center.add_observer(self, sender=account, name='CFGSettingsObjectWasDeleted')
	- notification_center.post_notification('SIPAccountManagerDidAddAccount', sender=self, data=TimestampedNotificationData(account=account))
	+ notification.center.add_observer(self, sender=account, name='CFGSettingsObjectDidChange')
	+ notification.center.add_observer(self, sender=account, name='CFGSettingsObjectWasDeleted')
	+ notification.center.post_notification('SIPAccountManagerDidAddAccount', sender=self, data=TimestampedNotificationData(account=account))
	from sipsimple.application import SIPApplication
	if SIPApplication.running:
	call_in_green_thread(account.start)

	def _NH_CFGSettingsObjectWasCreated(self, notification):
	if isinstance(notification.sender, Account):
	account = notification.sender
	if account.enabled and self.default_account is None:
	self.default_account = account

	def _NH_CFGSettingsObjectWasDeleted(self, notification):
	account = notification.sender
	del self.accounts[account.id]
	- notification_center = NotificationCenter()
	- notification_center.remove_observer(self, sender=account, name='CFGSettingsObjectDidChange')
	- notification_center.remove_observer(self, sender=account, name='CFGSettingsObjectWasDeleted')
	- notification_center.post_notification('SIPAccountManagerDidRemoveAccount', sender=self, data=TimestampedNotificationData(account=account))
	+ notification.center.remove_observer(self, sender=account, name='CFGSettingsObjectDidChange')
	+ notification.center.remove_observer(self, sender=account, name='CFGSettingsObjectWasDeleted')
	+ notification.center.post_notification('SIPAccountManagerDidRemoveAccount', sender=self, data=TimestampedNotificationData(account=account))

	def _NH_CFGSettingsObjectDidChange(self, notification):
	account = notification.sender
	if '__id__' in notification.data.modified:
	modified_id = notification.data.modified['__id__']
	self.accounts[modified_id.new] = self.accounts.pop(modified_id.old)
	if 'enabled' in notification.data.modified:
	if account.enabled and self.default_account is None:
	self.default_account = account
	elif not account.enabled and self.default_account is account:
	try:
	self.default_account = (account for account in self.accounts.itervalues() if account.enabled).next()
	except StopIteration:
	self.default_account = None

	def _get_default_account(self):
	settings = SIPSimpleSettings()
	return self.accounts.get(settings.default_account, None)

	def _set_default_account(self, account):
	if account is not None and not account.enabled:
	raise ValueError("account %s is not enabled" % account.id)
	notification_center = NotificationCenter()
	settings = SIPSimpleSettings()
	with self._lock:
	old_account = self.accounts.get(settings.default_account, None)
	if account is old_account:
	return
	if account is None:
	settings.default_account = None
	else:
	settings.default_account = account.id
	settings.save()
	# we need to post the notification in the file-io thread in order to have it serialized after the
	# SIPAccountManagerDidAddAccount notification that is triggered when the account is saved the first
	# time, because save is executed in the file-io thread while this runs in the current thread. -Dan
	data=TimestampedNotificationData(old_account=old_account, account=account)
	call_in_thread('file-io', notification_center.post_notification, 'SIPAccountManagerDidChangeDefaultAccount', sender=self, data=data)

	default_account = property(_get_default_account, _set_default_account)
	del _get_default_account, _set_default_account


	diff --git a/sipsimple/account/xcap/__init__.py b/sipsimple/account/xcap/__init__.py
	index 95de1ee4..ce584720 100644
	--- a/sipsimple/account/xcap/__init__.py
	+++ b/sipsimple/account/xcap/__init__.py
	@@ -1,1822 +1,1821 @@
	# Copyright (C) 2010-2011 AG Projects. See LICENSE for details.
	#

	"""High-level management of XCAP documents based on OMA specifications"""

	__all__ = ['Group', 'Contact', 'ContactURI', 'EventHandling', 'Policy', 'Icon', 'OfflineStatus', 'XCAPManager', 'XCAPTransaction']


	import base64
	import cPickle
	import os
	import random
	import weakref
	from cStringIO import StringIO
	from datetime import datetime
	from itertools import chain
	from operator import attrgetter
	from urllib2 import URLError

	from application import log
	from application.notification import IObserver, NotificationCenter
	from application.python import Null
	from application.python.decorator import execute_once
	from backports.collections import OrderedDict
	from eventlet import api, coros, proc
	from eventlet.green.httplib import BadStatusLine
	from twisted.internet.error import ConnectionLost
	from xcaplib.green import XCAPClient
	from xcaplib.error import HTTPError
	from zope.interface import implements

	from sipsimple.account.subscription import Subscriber, Content
	from sipsimple.account.xcap.storage import IXCAPStorage, XCAPStorageError
	from sipsimple.configuration.settings import SIPSimpleSettings
	from sipsimple.lookup import DNSLookup, DNSLookupError
	from sipsimple.payloads import ParserError, IterateTypes, IterateIDs, IterateItems, All
	from sipsimple.payloads import addressbook, commonpolicy, dialogrules, omapolicy, pidf, prescontent, presrules, resourcelists, rlsservices, xcapcaps, xcapdiff
	from sipsimple.payloads import rpid; rpid # needs to be imported to register its namespace
	from sipsimple.threading import run_in_twisted_thread
	from sipsimple.threading.green import Command, Worker, run_in_green_thread
	from sipsimple.util import TimestampedNotificationData



	class XCAPError(Exception): pass
	class FetchRequiredError(XCAPError): pass

	class SubscriptionError(Exception):
	def __init__(self, error, timeout, refresh_interval=None):
	self.error = error
	self.refresh_interval = refresh_interval
	self.timeout = timeout

	class SIPSubscriptionDidFail(Exception):
	def __init__(self, data):
	self.data = data

	class InterruptSubscription(Exception): pass
	class TerminateSubscription(Exception): pass


	class Document(object):
	name = None
	application = None
	payload_type = None
	default_namespace = None
	global_tree = None
	filename = None
	cached = True

	def __init__(self, manager):
	self.manager = weakref.proxy(manager)
	self.content = None
	self.etag = None
	self.fetch_time = datetime.fromtimestamp(0)
	self.update_time = datetime.fromtimestamp(0)
	self.dirty = False
	self.supported = False

	def _get_dirty(self):
	return self.__dict__['dirty'] or (self.content is not None and self.content.__dirty__)

	def _set_dirty(self, dirty):
	if self.content is not None and not dirty:
	self.content.__dirty__ = dirty
	self.__dict__['dirty'] = dirty

	dirty = property(_get_dirty, _set_dirty)
	del _get_dirty, _set_dirty

	@property
	def relative_uri(self):
	uri = self.uri[len(self.manager.xcap_root):]
	if uri.startswith('/'):
	uri = uri[1:]
	return uri

	@property
	def uri(self):
	return self.manager.client.get_url(self.application, None, globaltree=self.global_tree, filename=self.filename)

	def load_from_cache(self):
	if not self.cached:
	return
	try:
	document = StringIO(self.manager.storage.load(self.name))
	self.etag = document.readline().strip() or None
	self.content = self.payload_type.parse(document)
	self.__dict__['dirty'] = False
	except (XCAPStorageError, ParserError):
	self.etag = None
	self.content = None
	self.dirty = False
	self.fetch_time = datetime.utcnow()

	def initialize(self, server_caps):
	self.supported = self.application in server_caps.auids
	if not self.supported:
	self.reset()

	def reset(self):
	if self.cached and self.content is not None:
	try:
	self.manager.storage.delete(self.name)
	except XCAPStorageError:
	pass
	self.content = None
	self.etag = None
	self.dirty = False

	def fetch(self):
	try:
	document = self.manager.client.get(self.application, etagnot=self.etag, globaltree=self.global_tree, headers={'Accept': self.payload_type.content_type}, filename=self.filename)
	self.content = self.payload_type.parse(document)
	self.etag = document.etag
	self.__dict__['dirty'] = False
	except (BadStatusLine, ConnectionLost, URLError), e:
	raise XCAPError("failed to fetch %s document: %s" % (self.name, e))
	except HTTPError, e:
	if e.status == 404: # Not Found
	if self.content is not None:
	self.reset()
	self.fetch_time = datetime.utcnow()
	elif e.status != 304: # Other than Not Modified:
	raise XCAPError("failed to fetch %s document: %s" % (self.name, e))
	except ParserError, e:
	raise XCAPError("failed to parse %s document: %s" % (self.name, e))
	else:
	self.fetch_time = datetime.utcnow()
	if self.cached:
	try:
	self.manager.storage.save(self.name, self.etag + os.linesep + document)
	except XCAPStorageError:
	pass

	def update(self):
	if not self.dirty:
	return
	data = self.content.toxml() if self.content is not None else None
	try:
	kw = dict(etag=self.etag) if self.etag is not None else dict(etagnot='*')
	if data is not None:
	response = self.manager.client.put(self.application, data, globaltree=self.global_tree, filename=self.filename, headers={'Content-Type': self.payload_type.content_type}, **kw)
	else:
	response = self.manager.client.delete(self.application, data, globaltree=self.global_tree, filename=self.filename, **kw)
	except (BadStatusLine, ConnectionLost, URLError), e:
	raise XCAPError("failed to update %s document: %s" % (self.name, e))
	except HTTPError, e:
	if e.status == 412: # Precondition Failed
	raise FetchRequiredError("document %s was modified externally" % self.name)
	elif e.status == 404 and data is None: # attempted to delete a document that did't exist in the first place
	pass
	else:
	raise XCAPError("failed to update %s document: %s" % (self.name, e))
	self.etag = response.etag if data is not None else None
	self.dirty = False
	self.update_time = datetime.utcnow()
	if self.cached:
	try:
	if data is not None:
	self.manager.storage.save(self.name, self.etag + os.linesep + data)
	else:
	self.manager.storage.delete(self.name)
	except XCAPStorageError:
	pass


	class DialogRulesDocument(Document):
	name = 'dialog-rules'
	application = 'org.openxcap.dialog-rules'
	payload_type = dialogrules.DialogRulesDocument
	default_namespace = dialogrules.namespace
	global_tree = False
	filename = 'index'


	class PresRulesDocument(Document):
	name = 'pres-rules'
	application = 'pres-rules'
	payload_type = presrules.PresRulesDocument
	default_namespace = presrules.namespace
	global_tree = False
	filename = 'index'

	def initialize(self, server_caps):
	# TODO: sort it out later with openxcap and opensips -Dan
	#self.application = 'org.openmobilealliance.pres-rules' if 'org.openmobilealliance.pres-rules' in server_caps.auids else 'pres-rules'
	super(PresRulesDocument, self).initialize(server_caps)


	class ResourceListsDocument(Document):
	name = 'resource-lists'
	application = 'resource-lists'
	payload_type = resourcelists.ResourceListsDocument
	default_namespace = resourcelists.namespace
	global_tree = False
	filename = 'index'

	def update(self):
	if self.content is not None:
	sipsimple_addressbook = self.content['sipsimple_addressbook']

	groups = ItemCollection(sipsimple_addressbook[addressbook.Group, IterateItems])
	contacts = ItemCollection(sipsimple_addressbook[addressbook.Contact, IterateItems])
	policies = ItemCollection(sipsimple_addressbook[addressbook.Policy, IterateItems])

	for group, missing_id in ((group, missing_id) for group in groups for missing_id in [id for id in group.contacts if id not in contacts]):
	group.contacts.remove(missing_id)

	if any(item.__dirty__ for item in chain(contacts, policies)):
	oma_grantedcontacts = self.content['oma_grantedcontacts']
	oma_blockedcontacts = self.content['oma_blockedcontacts']
	dialog_grantedcontacts = self.content['dialog_grantedcontacts']
	dialog_blockedcontacts = self.content['dialog_blockedcontacts']
	sipsimple_presence_rls = self.content['sipsimple_presence_rls']
	sipsimple_dialog_rls = self.content['sipsimple_dialog_rls']

	all_contact_uris = set(uri.uri for contact in contacts for uri in contact.uris)

	contact_allow_presence_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.presence.policy=='allow')
	contact_block_presence_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.presence.policy=='block')
	contact_allow_dialog_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.dialog.policy=='allow')
	contact_block_dialog_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.dialog.policy=='block')
	contact_subscribe_presence_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.presence.subscribe==True)
	contact_subscribe_dialog_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.dialog.subscribe==True)

	policy_allow_presence_uris = set(policy.uri for policy in policies if policy.presence.policy=='allow')
	policy_block_presence_uris = set(policy.uri for policy in policies if policy.presence.policy=='block')
	policy_allow_dialog_uris = set(policy.uri for policy in policies if policy.dialog.policy=='allow')
	policy_block_dialog_uris = set(policy.uri for policy in policies if policy.dialog.policy=='block')
	policy_subscribe_presence_uris = set(policy.uri for policy in policies if policy.presence.subscribe==True)
	policy_subscribe_dialog_uris = set(policy.uri for policy in policies if policy.dialog.subscribe==True)

	allowed_presence_uris = contact_allow_presence_uris - contact_block_presence_uris \| policy_allow_presence_uris - policy_block_presence_uris - all_contact_uris
	blocked_presence_uris = contact_block_presence_uris \| policy_block_presence_uris - all_contact_uris
	allowed_dialog_uris = contact_allow_dialog_uris - contact_block_dialog_uris \| policy_allow_dialog_uris - policy_block_dialog_uris - all_contact_uris
	blocked_dialog_uris = contact_block_dialog_uris \| policy_block_dialog_uris - all_contact_uris
	subscribe_presence_uris = contact_subscribe_presence_uris \| policy_subscribe_presence_uris - all_contact_uris
	subscribe_dialog_uris = contact_subscribe_dialog_uris \| policy_subscribe_dialog_uris - all_contact_uris

	if allowed_presence_uris != set(entry.uri for entry in oma_grantedcontacts):
	oma_grantedcontacts.clear()
	oma_grantedcontacts.update(resourcelists.Entry(uri) for uri in allowed_presence_uris)
	if blocked_presence_uris != set(entry.uri for entry in oma_blockedcontacts):
	oma_blockedcontacts.clear()
	oma_blockedcontacts.update(resourcelists.Entry(uri) for uri in blocked_presence_uris)
	if allowed_dialog_uris != set(entry.uri for entry in dialog_grantedcontacts):
	dialog_grantedcontacts.clear()
	dialog_grantedcontacts.update(resourcelists.Entry(uri) for uri in allowed_dialog_uris)
	if blocked_dialog_uris != set(entry.uri for entry in dialog_blockedcontacts):
	dialog_blockedcontacts.clear()
	dialog_blockedcontacts.update(resourcelists.Entry(uri) for uri in blocked_dialog_uris)
	if subscribe_presence_uris != set(entry.uri for entry in sipsimple_presence_rls):
	sipsimple_presence_rls.clear()
	sipsimple_presence_rls.update(resourcelists.Entry(uri) for uri in subscribe_presence_uris)
	if subscribe_dialog_uris != set(entry.uri for entry in sipsimple_dialog_rls):
	sipsimple_dialog_rls.clear()
	sipsimple_dialog_rls.update(resourcelists.Entry(uri) for uri in subscribe_dialog_uris)
	super(ResourceListsDocument, self).update()


	class RLSServicesDocument(Document):
	name = 'rls-services'
	application = 'rls-services'
	payload_type = rlsservices.RLSServicesDocument
	default_namespace = rlsservices.namespace
	global_tree = False
	filename = 'index'


	class XCAPCapsDocument(Document):
	name = 'xcap-caps'
	application = 'xcap-caps'
	payload_type = xcapcaps.XCAPCapabilitiesDocument
	default_namespace = xcapcaps.namespace
	global_tree = True
	filename = 'index'
	cached = False

	def initialize(self):
	self.supported = True


	class StatusIconDocument(Document):
	name = 'status-icon'
	application = 'org.openmobilealliance.pres-content'
	payload_type = prescontent.PresenceContentDocument
	default_namespace = prescontent.namespace
	global_tree = False
	filename = 'oma_status-icon/index'

	def __init__(self, manager):
	super(StatusIconDocument, self).__init__(manager)
	self.alternative_location = None

	def fetch(self):
	try:
	document = self.manager.client.get(self.application, etagnot=self.etag, globaltree=self.global_tree, headers={'Accept': self.payload_type.content_type}, filename=self.filename)
	self.content = self.payload_type.parse(document)
	self.etag = document.etag
	self.__dict__['dirty'] = False
	except (BadStatusLine, ConnectionLost, URLError), e:
	raise XCAPError("failed to fetch %s document: %s" % (self.name, e))
	except HTTPError, e:
	if e.status == 404: # Not Found
	if self.content is not None:
	self.reset()
	self.fetch_time = datetime.utcnow()
	elif e.status == 304: # Not Modified:
	self.alternative_location = e.headers.get('X-Alternative-Location', None)
	else:
	raise XCAPError("failed to fetch %s document: %s" % (self.name, e))
	except ParserError, e:
	raise XCAPError("failed to parse %s document: %s" % (self.name, e))
	else:
	self.fetch_time = datetime.utcnow()
	self.alternative_location = document.response.headers.get('X-Alternative-Location', None)
	if self.cached:
	try:
	self.manager.storage.save(self.name, self.etag + os.linesep + document)
	except XCAPStorageError:
	pass

	def update(self):
	if not self.dirty:
	return
	data = self.content.toxml() if self.content is not None else None
	try:
	kw = dict(etag=self.etag) if self.etag is not None else dict(etagnot='*')
	if data is not None:
	response = self.manager.client.put(self.application, data, globaltree=self.global_tree, filename=self.filename, headers={'Content-Type': self.payload_type.content_type}, **kw)
	else:
	response = self.manager.client.delete(self.application, data, globaltree=self.global_tree, filename=self.filename, **kw)
	except (BadStatusLine, ConnectionLost, URLError), e:
	raise XCAPError("failed to update %s document: %s" % (self.name, e))
	except HTTPError, e:
	if e.status == 412: # Precondition Failed
	raise FetchRequiredError("document %s was modified externally" % self.name)
	elif e.status == 404 and data is None: # attempted to delete a document that did't exist in the first place
	pass
	else:
	raise XCAPError("failed to update %s document: %s" % (self.name, e))
	self.alternative_location = response.headers.get('X-Alternative-Location', None)
	self.etag = response.etag if data is not None else None
	self.dirty = False
	self.update_time = datetime.utcnow()
	if self.cached:
	try:
	if data is not None:
	self.manager.storage.save(self.name, self.etag + os.linesep + data)
	else:
	self.manager.storage.delete(self.name)
	except XCAPStorageError:
	pass

	def reset(self):
	super(StatusIconDocument, self).reset()
	self.alternative_location = None


	class PIDFManipulationDocument(Document):
	name = 'pidf-manipulation'
	application = 'pidf-manipulation'
	payload_type = pidf.PIDFDocument
	default_namespace = pidf.pidf_namespace
	global_tree = False
	filename = 'index'


	class ItemCollection(object):
	def __init__(self, items):
	self.items = OrderedDict((item.id, item) for item in items)
	def __getitem__(self, key):
	return self.items[key]
	def __contains__(self, key):
	return key in self.items
	def __iter__(self):
	return self.items.itervalues()
	def __reversed__(self):
	return (self[id] for id in reversed(self.items))
	def __len__(self):
	return len(self.items)
	def __eq__(self, other):
	if isinstance(other, ItemCollection):
	return self.items == other.items
	return NotImplemented
	def __ne__(self, other):
	equal = self.__eq__(other)
	return NotImplemented if equal is NotImplemented else not equal
	def __repr__(self):
	return "%s(%r)" % (self.__class__.__name__, self.items.values())
	def ids(self):
	return self.items.keys()
	def iterids(self):
	return self.items.iterkeys()
	def get(self, key, default=None):
	return self.items.get(key, default)
	def add(self, item):
	self.items[item.id] = item
	def remove(self, item):
	del self.items[item.id]


	class Group(object):
	def __init__(self, id, name, contacts, **attributes):
	self.id = id
	self.name = name
	self.contacts = contacts
	self.attributes = attributes

	def __eq__(self, other):
	if isinstance(other, Group):
	return self is other or (self.id == other.id and self.name == other.name and self.contacts.ids() == other.contacts.ids() and self.attributes == other.attributes)
	return NotImplemented

	def __ne__(self, other):
	equal = self.__eq__(other)
	return NotImplemented if equal is NotImplemented else not equal

	def __setattr__(self, name, value):
	if name == 'contacts' and not isinstance(value, ItemCollection):
	value = ItemCollection(value)
	object.__setattr__(self, name, value)


	class ContactURI(object):
	def __init__(self, id, uri, type, **attributes):
	self.id = id
	self.uri = uri
	self.type = type
	self.attributes = attributes

	def __eq__(self, other):
	if isinstance(other, ContactURI):
	return self is other or (self.id == other.id and self.uri == other.uri and self.type == other.type and self.attributes == other.attributes)
	return NotImplemented

	def __ne__(self, other):
	equal = self.__eq__(other)
	return NotImplemented if equal is NotImplemented else not equal


	class EventHandling(object):
	def __init__(self, policy, subscribe):
	self.policy = policy
	self.subscribe = subscribe

	def __eq__(self, other):
	if isinstance(other, EventHandling):
	return self is other or (self.policy == other.policy and self.subscribe == other.subscribe)
	return NotImplemented

	def __ne__(self, other):
	equal = self.__eq__(other)
	return NotImplemented if equal is NotImplemented else not equal

	def __repr__(self):
	return '%s(%r, %r)' % (self.__class__.__name__, self.policy, self.subscribe)


	class Contact(object):
	def __init__(self, id, name, uris, presence_handling=None, dialog_handling=None, **attributes):
	self.id = id
	self.name = name
	self.uris = uris
	self.dialog = dialog_handling or EventHandling(policy='default', subscribe=False)
	self.presence = presence_handling or EventHandling(policy='default', subscribe=False)
	self.attributes = attributes

	def __eq__(self, other):
	if isinstance(other, Contact):
	return self is other or (self.id == other.id and self.name == other.name and self.uris == other.uris and self.dialog == other.dialog and self.presence == other.presence and
	self.attributes == other.attributes)
	return NotImplemented

	def __ne__(self, other):
	equal = self.__eq__(other)
	return NotImplemented if equal is NotImplemented else not equal

	def __setattr__(self, name, value):
	if name == 'uris' and not isinstance(value, ItemCollection):
	value = ItemCollection(value)
	object.__setattr__(self, name, value)


	class Policy(object):
	def __init__(self, id, uri, name, presence_handling=None, dialog_handling=None, **attributes):
	self.id = id
	self.uri = uri
	self.name = name
	self.dialog = dialog_handling or EventHandling(policy='default', subscribe=False)
	self.presence = presence_handling or EventHandling(policy='default', subscribe=False)
	self.attributes = attributes

	def __eq__(self, other):
	if isinstance(other, Policy):
	return self is other or (self.id == other.id and self.uri == other.uri and self.name == other.name and self.dialog == other.dialog and self.presence == other.presence and
	self.attributes == other.attributes)
	return NotImplemented

	def __ne__(self, other):
	equal = self.__eq__(other)
	return NotImplemented if equal is NotImplemented else not equal


	class Addressbook(object):
	def __init__(self, contacts, groups, policies):
	self.contacts = contacts
	self.groups = groups
	self.policies = policies

	def __eq__(self, other):
	if isinstance(other, Addressbook):
	return self is other or (self.contacts == other.contacts and self.groups == other.groups and self.policies == other.policies)
	return NotImplemented

	def __ne__(self, other):
	equal = self.__eq__(other)
	return NotImplemented if equal is NotImplemented else not equal

	@classmethod
	def from_payload(cls, payload):
	def payload_to_contact(payload):
	uris = [ContactURI(uri.id, uri.uri, uri.type, **(uri.attributes or {})) for uri in payload.uris]
	presence_handling = EventHandling(payload.presence.policy.value, payload.presence.subscribe.value)
	dialog_handling = EventHandling(payload.dialog.policy.value, payload.dialog.subscribe.value)
	return Contact(payload.id, payload.name.value, uris, presence_handling, dialog_handling, **(payload.attributes or {}))
	def payload_to_group(payload):
	return Group(payload.id, payload.name.value, [contacts[contact_id] for contact_id in payload.contacts], **(payload.attributes or {}))
	def payload_to_policy(payload):
	presence_handling = EventHandling(payload.presence.policy.value, payload.presence.subscribe.value)
	dialog_handling = EventHandling(payload.dialog.policy.value, payload.dialog.subscribe.value)
	return Policy(payload.id, payload.uri, payload.name.value, presence_handling, dialog_handling, **(payload.attributes or {}))
	contacts = ItemCollection(payload_to_contact(item) for item in payload[addressbook.Contact, IterateItems])
	groups = ItemCollection(payload_to_group(item) for item in payload[addressbook.Group, IterateItems])
	policies = ItemCollection(payload_to_policy(item) for item in payload[addressbook.Policy, IterateItems])
	return cls(contacts, groups, policies)


	class PresenceRules(object):
	def __init__(self, default_policy):
	self.default_policy = default_policy

	def __eq__(self, other):
	if isinstance(other, PresenceRules):
	return self is other or (self.default_policy == other.default_policy)
	return NotImplemented

	def __ne__(self, other):
	equal = self.__eq__(other)
	return NotImplemented if equal is NotImplemented else not equal

	@classmethod
	def from_payload(cls, default_rule):
	default_policy = next(item for item in default_rule.actions if isinstance(item, presrules.SubHandling)).value
	return cls(default_policy)


	class DialogRules(object):
	def __init__(self, default_policy):
	self.default_policy = default_policy

	def __eq__(self, other):
	if isinstance(other, DialogRules):
	return self is other or (self.default_policy == other.default_policy)
	return NotImplemented

	def __ne__(self, other):
	equal = self.__eq__(other)
	return NotImplemented if equal is NotImplemented else not equal

	@classmethod
	def from_payload(cls, default_rule):
	if default_rule is not None:
	default_policy = next(item for item in default_rule.actions if isinstance(item, dialogrules.SubHandling)).value
	else:
	default_policy = None
	return cls(default_policy)


	class Icon(object):
	__mimetypes__ = ('image/jpeg', 'image/png', 'image/gif')

	def __init__(self, data, mime_type, description=None, location=None):
	self.data = data
	self.mime_type = mime_type
	self.description = description
	self.location = location

	def __eq__(self, other):
	if isinstance(other, Icon):
	return self is other or (self.data == other.data and self.mime_type == other.mime_type and self.description == other.description and self.location == other.location)
	return NotImplemented

	def __ne__(self, other):
	equal = self.__eq__(other)
	return NotImplemented if equal is NotImplemented else not equal

	def __setattr__(self, name, value):
	if name == 'mime_type' and value not in self.__mimetypes__:
	raise ValueError("invalid mime type: '%s'. Should be one of: %s" % (value, ', '.join(self.__mimetypes__)))
	object.__setattr__(self, name, value)

	@classmethod
	def from_payload(cls, payload, location=None):
	try:
	data = base64.decodestring(payload.data.value)
	except Exception:
	return None
	else:
	description = payload.description.value if payload.description else None
	return cls(data, payload.mime_type.value, description, location)


	class OfflineStatus(object):
	__slots__ = ('pidf',)

	def __init__(self, pidf):
	self.pidf = pidf

	def __setattr__(self, name, value):
	if name == 'pidf' and not isinstance(value, pidf.PIDF):
	raise ValueError("pidf must be a PIDF payload")
	object.__setattr__(self, name, value)

	def __eq__(self, other):
	if isinstance(other, OfflineStatus):
	return self is other or (self.pidf == other.pidf)
	return NotImplemented

	def __ne__(self, other):
	equal = self.__eq__(other)
	return NotImplemented if equal is NotImplemented else not equal

	def __getstate__(self):
	return {'pidf': self.pidf.toxml()}

	def __setstate__(self, state):
	self.pidf = pidf.PIDFDocument.parse(state['pidf'])


	class Operation(object):
	__params__ = ()
	def __init__(self, **params):
	for name, value in params.iteritems():
	setattr(self, name, value)
	for param in set(self.__params__).difference(params):
	raise ValueError("missing operation parameter: '%s'" % param)
	self.applied = False
	self.timestamp = datetime.utcnow()


	class NormalizeOperation(Operation):
	__params__ = ()

	class AddContactOperation(Operation):
	__params__ = ('contact',)

	class UpdateContactOperation(Operation):
	__params__ = ('contact', 'attributes')

	class RemoveContactOperation(Operation):
	__params__ = ('contact',)

	class AddContactURIOperation(Operation):
	__params__ = ('contact', 'uri')

	class UpdateContactURIOperation(Operation):
	__params__ = ('contact', 'uri', 'attributes')

	class RemoveContactURIOperation(Operation):
	__params__ = ('contact', 'uri')

	class AddGroupOperation(Operation):
	__params__ = ('group',)

	class UpdateGroupOperation(Operation):
	__params__ = ('group', 'attributes')

	class RemoveGroupOperation(Operation):
	__params__ = ('group',)

	class AddGroupMemberOperation(Operation):
	__params__ = ('group', 'contact')

	class RemoveGroupMemberOperation(Operation):
	__params__ = ('group', 'contact')

	class AddPolicyOperation(Operation):
	__params__ = ('policy',)

	class UpdatePolicyOperation(Operation):
	__params__ = ('policy', 'attributes')

	class RemovePolicyOperation(Operation):
	__params__ = ('policy',)

	class SetDefaultPresencePolicyOperation(Operation):
	__params__ = ('policy',)

	class SetDefaultDialogPolicyOperation(Operation):
	__params__ = ('policy',)

	class SetStatusIconOperation(Operation):
	__params__ = ('icon',)

	class SetOfflineStatusOperation(Operation):
	__params__ = ('status',)


	class XCAPSubscriber(Subscriber):
	@property
	def event(self):
	return 'xcap-diff'

	@property
	def content(self):
	rlist = resourcelists.List()
	for document in (doc for doc in self.account.xcap_manager.documents if doc.supported):
	rlist.add(resourcelists.Entry(document.relative_uri))
	return Content(resourcelists.ResourceLists([rlist]).toxml(), resourcelists.ResourceListsDocument.content_type)


	class XCAPManager(object):
	implements(IObserver)

	def __init__(self, account):
	from sipsimple.application import SIPApplication
	if SIPApplication.storage is None:
	raise RuntimeError("SIPApplication.storage must be defined before instantiating XCAPManager")
	storage = SIPApplication.storage.xcap_storage_factory(account.id)
	if not IXCAPStorage.providedBy(storage):
	raise TypeError("storage must implement the IXCAPStorage interface")
	self.account = account
	self.storage = storage
	self.storage_factory = SIPApplication.storage.xcap_storage_factory
	self.client = None
	self.command_proc = None
	self.command_channel = coros.queue()
	self.last_fetch_time = datetime.fromtimestamp(0)
	self.last_update_time = datetime.fromtimestamp(0)
	self.not_executed_fetch = None
	self.state = 'stopped'
	self.timer = None
	self.transaction_level = 0
	self.xcap_subscriber = None

	self.server_caps = XCAPCapsDocument(self)
	self.dialog_rules = DialogRulesDocument(self)
	self.pidf_manipulation = PIDFManipulationDocument(self)
	self.pres_rules = PresRulesDocument(self)
	self.resource_lists = ResourceListsDocument(self)
	self.rls_services = RLSServicesDocument(self)
	self.status_icon = StatusIconDocument(self)

	for document in self.documents:
	document.load_from_cache()
	try:
	self.journal = cPickle.loads(self.storage.load('journal'))
	except (XCAPStorageError, cPickle.UnpicklingError):
	self.journal = []
	else:
	for operation in self.journal:
	operation.applied = False

	notification_center = NotificationCenter()
	notification_center.add_observer(self, sender=account, name='CFGSettingsObjectDidChange')
	notification_center.add_observer(self, sender=account, name='CFGSettingsObjectWasDeleted')

	def _get_state(self):
	return self.__dict__['state']

	def _set_state(self, value):
	old_value = self.__dict__.get('state', Null)
	self.__dict__['state'] = value
	if old_value != value and old_value is not Null:
	notification_center = NotificationCenter()
	notification_center.post_notification('XCAPManagerDidChangeState', sender=self, data=TimestampedNotificationData(prev_state=old_value, state=value))

	state = property(_get_state, _set_state)
	del _get_state, _set_state

	@property
	def documents(self):
	return [self.resource_lists, self.rls_services, self.pres_rules, self.dialog_rules, self.pidf_manipulation, self.status_icon]

	@property
	def document_names(self):
	return [document.name for document in self.documents]

	@property
	def xcap_root(self):
	return getattr(self.client, 'root', None)

	@property
	def rls_presence_uri(self):
	return 'sip:%s+presence@%s' % (self.account.id.username, self.account.id.domain)

	@property
	def rls_dialog_uri(self):
	return 'sip:%s+dialog@%s' % (self.account.id.username, self.account.id.domain)

	@execute_once
	def init(self):
	"""
	Initializes the XCAP manager before it can be started. Needs to be
	called before any other method and in a green thread.
	"""
	self.command_proc = proc.spawn(self._run)

	def start(self):
	"""
	Starts the XCAP manager. This method needs to be called in a green
	thread.
	"""
	command = Command('start')
	self.command_channel.send(command)
	command.wait()

	def stop(self):
	"""
	Stops the XCAP manager. This method blocks until all the operations are
	stopped and needs to be called in a green thread.
	"""
	command = Command('stop')
	self.command_channel.send(command)
	command.wait()

	def transaction(self):
	return XCAPTransaction(self)

	@run_in_twisted_thread
	def start_transaction(self):
	self.transaction_level += 1

	@run_in_twisted_thread
	def commit_transaction(self):
	if self.transaction_level == 0:
	return
	self.transaction_level -= 1
	if self.transaction_level == 0 and self.journal:
	self._save_journal()
	self.command_channel.send(Command('update'))

	def add_contact(self, contact):
	self._schedule_operation(AddContactOperation(contact=contact))

	def update_contact(self, contact, attributes):
	self._schedule_operation(UpdateContactOperation(contact=contact, attributes=attributes))

	def remove_contact(self, contact):
	self._schedule_operation(RemoveContactOperation(contact=contact))

	def add_contact_uri(self, contact, uri):
	self._schedule_operation(AddContactURIOperation(contact=contact, uri=uri))

	def update_contact_uri(self, contact, uri, attributes):
	self._schedule_operation(UpdateContactURIOperation(contact=contact, uri=uri, attributes=attributes))

	def remove_contact_uri(self, contact, uri):
	self._schedule_operation(RemoveContactURIOperation(contact=contact, uri=uri))

	def add_group(self, group):
	self._schedule_operation(AddGroupOperation(group=group))

	def update_group(self, group, attributes):
	self._schedule_operation(UpdateGroupOperation(group=group, attributes=attributes))

	def remove_group(self, group):
	self._schedule_operation(RemoveGroupOperation(group=group))

	def add_group_member(self, group, contact):
	self._schedule_operation(AddGroupMemberOperation(group=group, contact=contact))

	def remove_group_member(self, group, contact):
	self._schedule_operation(RemoveGroupMemberOperation(group=group, contact=contact))

	def add_policy(self, policy):
	self._schedule_operation(AddPolicyOperation(policy=policy))

	def update_policy(self, policy, attributes):
	self._schedule_operation(UpdatePolicyOperation(policy=policy, attributes=attributes))

	def remove_policy(self, policy):
	self._schedule_operation(RemovePolicyOperation(policy=policy))

	def set_default_presence_policy(self, policy):
	self._schedule_operation(SetDefaultPresencePolicyOperation(policy=presrules.SubHandlingValue(policy)))

	def set_default_dialog_policy(self, policy):
	self._schedule_operation(SetDefaultDialogPolicyOperation(policy=dialogrules.SubHandlingValue(policy)))

	def set_status_icon(self, icon):
	self._schedule_operation(SetStatusIconOperation(icon=icon))

	def set_offline_status(self, status):
	self._schedule_operation(SetOfflineStatusOperation(status=status))

	@run_in_twisted_thread
	def _schedule_operation(self, operation):
	self.journal.append(operation)
	if self.transaction_level == 0:
	self._save_journal()
	self.command_channel.send(Command('update'))

	def _run(self):
	while True:
	command = self.command_channel.wait()
	try:
	handler = getattr(self, '_CH_%s' % command.name)
	handler(command)
	except:
	self.command_proc = None
	raise

	# Command handlers
	#

	def _CH_start(self, command):
	if self.state != 'stopped':
	command.signal()
	return
	self.state = 'initializing'
	self.xcap_subscriber = XCAPSubscriber(self.account)
	notification_center = NotificationCenter()
	notification_center.post_notification('XCAPManagerWillStart', sender=self, data=TimestampedNotificationData())
	notification_center.add_observer(self, sender=self.xcap_subscriber)
	notification_center.add_observer(self, sender=SIPSimpleSettings(), name='CFGSettingsObjectDidChange')
	self.xcap_subscriber.start()
	self.command_channel.send(Command('initialize'))
	notification_center.post_notification('XCAPManagerDidStart', sender=self, data=TimestampedNotificationData())
	command.signal()

	def _CH_stop(self, command):
	if self.state in ('stopped', 'terminated'):
	command.signal()
	return
	notification_center = NotificationCenter()
	notification_center.post_notification('XCAPManagerWillEnd', sender=self, data=TimestampedNotificationData())
	notification_center.remove_observer(self, sender=self.xcap_subscriber)
	notification_center.remove_observer(self, sender=SIPSimpleSettings(), name='CFGSettingsObjectDidChange')
	if self.timer is not None and self.timer.active():
	self.timer.cancel()
	self.timer = None
	self.xcap_subscriber.stop()
	self.xcap_subscriber = None
	self.client = None
	self.state = 'stopped'
	self._save_journal()
	notification_center.post_notification('XCAPManagerDidEnd', sender=self, data=TimestampedNotificationData())
	command.signal()

	def _CH_cleanup(self, command):
	if self.state != 'stopped':
	command.signal()
	return
	try:
	self.storage.purge()
	except XCAPStorageError:
	pass
	self.journal = []
	self.state = 'terminated'
	command.signal()
	raise proc.ProcExit

	def _CH_initialize(self, command):
	self.state = 'initializing'
	if self.timer is not None and self.timer.active():
	self.timer.cancel()
	self.timer = None
	if self.account.xcap.xcap_root:
	self.client = XCAPClient(self.account.xcap.xcap_root, self.account.id, password=self.account.auth.password)
	else:
	try:
	lookup = DNSLookup()
	uri = random.choice(lookup.lookup_xcap_server(self.account.uri).wait())
	except DNSLookupError:
	self.timer = self._schedule_command(60, Command('initialize', command.event))
	return
	else:
	self.client = XCAPClient(uri, self.account.id, password=self.account.auth.password)

	try:
	self.server_caps.fetch()
	except XCAPError:
	self.timer = self._schedule_command(60, Command('initialize', command.event))
	return
	else:
	if self.server_caps.content is None:
	# XCAP server must always return some content for xcap-caps
	self.timer = self._schedule_command(60, Command('initialize', command.event))
	return
	if not set(self.server_caps.content.auids).issuperset(('resource-lists', 'rls-services', 'org.openmobilealliance.pres-rules')):
	# Server must support at least resource-lists, rls-services and org.openmobilealliance.pres-rules
	self.timer = self._schedule_command(3600, Command('initialize', command.event))
	return
	self.server_caps.initialize()
	for document in self.documents:
	document.initialize(self.server_caps.content)

	notification_center = NotificationCenter()
	notification_center.post_notification('XCAPManagerDidDiscoverServerCapabilities', sender=self, data=TimestampedNotificationData(auids=self.server_caps.content.auids))

	self.state = 'fetching'
	self.command_channel.send(Command('fetch', documents=set(self.document_names)))
	self.xcap_subscriber.activate()

	def _CH_reload(self, command):
	if self.state == 'terminated':
	command.signal()
	return
	if '__id__' in command.modified:
	try:
	self.storage.purge()
	except XCAPStorageError:
	pass
	self.storage = self.storage_factory(self.account.id)
	self.journal = []
	self._save_journal()
	if set(['__id__', 'xcap.xcap_root']).intersection(command.modified):
	for document in self.documents:
	document.reset()
	if self.state == 'stopped':
	command.signal()
	return
	if set(['__id__', 'auth.username', 'auth.password', 'xcap.xcap_root']).intersection(command.modified):
	self.state = 'initializing'
	self.command_channel.send(Command('initialize'))
	else:
	self.xcap_subscriber.resubscribe()
	command.signal()

	def _CH_fetch(self, command):
	if self.state not in ('insync', 'fetching'):
	if self.not_executed_fetch is not None:
	command.documents.update(self.not_executed_fetch.documents)
	self.not_executed_fetch = command
	return
	if self.not_executed_fetch is not None:
	command.documents.update(self.not_executed_fetch.documents)
	self.not_executed_fetch = None
	self.state = 'fetching'
	if self.timer is not None and self.timer.active():
	command.documents.update(self.timer.command.documents)
	self.timer.cancel()
	self.timer = None

	try:
	self._fetch_documents(command.documents)
	except XCAPError:
	self.timer = self._schedule_command(60, Command('fetch', command.event, documents=command.documents))
	return

	if not self.journal and self.last_fetch_time > datetime.fromtimestamp(0) and all(doc.fetch_time < command.timestamp for doc in self.documents):
	self.last_fetch_time = datetime.utcnow()
	self.state = 'insync'
	return
	else:
	self.last_fetch_time = datetime.utcnow()

	self.state = 'updating'
	if not self.journal or type(self.journal[0]) is not NormalizeOperation:
	self.journal.insert(0, NormalizeOperation())
	self.command_channel.send(Command('update', command.event))

	def _CH_update(self, command):
	if self.state not in ('insync', 'updating'):
	return
	if self.transaction_level != 0:
	return
	self.state = 'updating'
	if self.timer is not None and self.timer.active():
	self.timer.cancel()
	self.timer = None
	journal = self.journal[:]
	for operation in (operation for operation in journal if not operation.applied):
	handler = getattr(self, '_OH_%s' % operation.__class__.__name__)
	try:
	handler(operation)
	except Exception:
	# Error while applying operation, needs to be logged -Luci
	log.err()
	operation.applied = True
	api.sleep(0) # Operations are quite CPU intensive
	try:
	for document in (doc for doc in self.documents if doc.dirty and doc.supported):
	document.update()
	except FetchRequiredError:
	for document in (doc for doc in self.documents if doc.dirty and doc.supported):
	document.reset()
	for operation in journal:
	operation.applied = False
	self.state = 'fetching'
	self.command_channel.send(Command('fetch', documents=set(self.document_names))) # Try to fetch them all just in case
	except XCAPError:
	self.timer = self._schedule_command(60, Command('update'))
	else:
	del self.journal[:len(journal)]
	if not self.journal:
	self.state = 'insync'
	if any(max(doc.update_time, doc.fetch_time) > self.last_update_time for doc in self.documents):
	self._load_data()
	self.last_update_time = datetime.utcnow()
	command.signal()
	if self.not_executed_fetch is not None:
	self.command_channel.send(self.not_executed_fetch)
	self.not_executed_fetch = None
	self._save_journal()

	# Operation handlers
	#

	def _OH_NormalizeOperation(self, operation):
	# Normalize resource-lists
	#
	if self.resource_lists.content is None:
	self.resource_lists.content = resourcelists.ResourceLists()

	resource_lists = self.resource_lists.content

	try:
	oma_buddylist = resource_lists['oma_buddylist']
	except KeyError:
	oma_buddylist = resourcelists.List(name='oma_buddylist')
	resource_lists.add(oma_buddylist)
	try:
	oma_grantedcontacts = resource_lists['oma_grantedcontacts']
	except KeyError:
	oma_grantedcontacts = resourcelists.List(name='oma_grantedcontacts')
	resource_lists.add(oma_grantedcontacts)
	try:
	oma_blockedcontacts = resource_lists['oma_blockedcontacts']
	except KeyError:
	oma_blockedcontacts = resourcelists.List(name='oma_blockedcontacts')
	resource_lists.add(oma_blockedcontacts)
	try:
	oma_allcontacts = resource_lists['oma_allcontacts']
	except KeyError:
	oma_allcontacts = resourcelists.List(name='oma_allcontacts')
	oma_allcontacts.add(resourcelists.External(self.resource_lists.uri + '/~~' + resource_lists.get_xpath(oma_buddylist)))
	oma_allcontacts.add(resourcelists.External(self.resource_lists.uri + '/~~' + resource_lists.get_xpath(oma_grantedcontacts)))
	oma_allcontacts.add(resourcelists.External(self.resource_lists.uri + '/~~' + resource_lists.get_xpath(oma_blockedcontacts)))
	resource_lists.add(oma_allcontacts)

	try:
	dialog_grantedcontacts = resource_lists['dialog_grantedcontacts']
	except KeyError:
	dialog_grantedcontacts = resourcelists.List(name='dialog_grantedcontacts')
	resource_lists.add(dialog_grantedcontacts)
	try:
	dialog_blockedcontacts = resource_lists['dialog_blockedcontacts']
	except KeyError:
	dialog_blockedcontacts = resourcelists.List(name='dialog_blockedcontacts')
	resource_lists.add(dialog_blockedcontacts)

	try:
	sipsimple_presence_rls = resource_lists['sipsimple_presence_rls']
	except KeyError:
	sipsimple_presence_rls = resourcelists.List(name='sipsimple_presence_rls')
	resource_lists.add(sipsimple_presence_rls)
	try:
	sipsimple_dialog_rls = resource_lists['sipsimple_dialog_rls']
	except KeyError:
	sipsimple_dialog_rls = resourcelists.List(name='sipsimple_dialog_rls')
	resource_lists.add(sipsimple_dialog_rls)

	try:
	sipsimple_addressbook = resource_lists['sipsimple_addressbook']
	except KeyError:
	sipsimple_addressbook = resourcelists.List(name='sipsimple_addressbook')
	resource_lists.add(sipsimple_addressbook)

	for cls in (cls for cls in sipsimple_addressbook[IterateTypes] if cls not in (addressbook.Contact, addressbook.Group, addressbook.Policy)):
	del sipsimple_addressbook[cls, All]
	for cls in (cls for cls in oma_grantedcontacts[IterateTypes] if cls is not resourcelists.Entry):
	del oma_grantedcontacts[cls, All]
	for cls in (cls for cls in oma_blockedcontacts[IterateTypes] if cls is not resourcelists.Entry):
	del oma_blockedcontacts[cls, All]
	for cls in (cls for cls in dialog_grantedcontacts[IterateTypes] if cls is not resourcelists.Entry):
	del dialog_grantedcontacts[cls, All]
	for cls in (cls for cls in dialog_blockedcontacts[IterateTypes] if cls is not resourcelists.Entry):
	del dialog_blockedcontacts[cls, All]
	for cls in (cls for cls in sipsimple_presence_rls[IterateTypes] if cls is not resourcelists.Entry):
	del sipsimple_presence_rls[cls, All]
	for cls in (cls for cls in sipsimple_dialog_rls[IterateTypes] if cls is not resourcelists.Entry):
	del sipsimple_dialog_rls[cls, All]

	groups = ItemCollection(sipsimple_addressbook[addressbook.Group, IterateItems])
	contacts = ItemCollection(sipsimple_addressbook[addressbook.Contact, IterateItems])
	policies = ItemCollection(sipsimple_addressbook[addressbook.Policy, IterateItems])

	for group, missing_id in [(group, missing_id) for group in groups for missing_id in (id for id in group.contacts if id not in contacts)]:
	group.contacts.remove(missing_id)

	all_contact_uris = set(uri.uri for contact in contacts for uri in contact.uris)

	contact_allow_presence_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.presence.policy=='allow')
	contact_block_presence_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.presence.policy=='block')
	contact_allow_dialog_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.dialog.policy=='allow')
	contact_block_dialog_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.dialog.policy=='block')
	contact_subscribe_presence_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.presence.subscribe==True)
	contact_subscribe_dialog_uris = set(uri.uri for contact in contacts for uri in contact.uris if contact.dialog.subscribe==True)

	policy_allow_presence_uris = set(policy.uri for policy in policies if policy.presence.policy=='allow')
	policy_block_presence_uris = set(policy.uri for policy in policies if policy.presence.policy=='block')
	policy_allow_dialog_uris = set(policy.uri for policy in policies if policy.dialog.policy=='allow')
	policy_block_dialog_uris = set(policy.uri for policy in policies if policy.dialog.policy=='block')
	policy_subscribe_presence_uris = set(policy.uri for policy in policies if policy.presence.subscribe==True)
	policy_subscribe_dialog_uris = set(policy.uri for policy in policies if policy.dialog.subscribe==True)

	allowed_presence_uris = contact_allow_presence_uris - contact_block_presence_uris \| policy_allow_presence_uris - policy_block_presence_uris - all_contact_uris
	blocked_presence_uris = contact_block_presence_uris \| policy_block_presence_uris - all_contact_uris
	allowed_dialog_uris = contact_allow_dialog_uris - contact_block_dialog_uris \| policy_allow_dialog_uris - policy_block_dialog_uris - all_contact_uris
	blocked_dialog_uris = contact_block_dialog_uris \| policy_block_dialog_uris - all_contact_uris
	subscribe_presence_uris = contact_subscribe_presence_uris \| policy_subscribe_presence_uris - all_contact_uris
	subscribe_dialog_uris = contact_subscribe_dialog_uris \| policy_subscribe_dialog_uris - all_contact_uris

	if allowed_presence_uris != set(entry.uri for entry in oma_grantedcontacts):
	oma_grantedcontacts.clear()
	oma_grantedcontacts.update(resourcelists.Entry(uri) for uri in allowed_presence_uris)
	if blocked_presence_uris != set(entry.uri for entry in oma_blockedcontacts):
	oma_blockedcontacts.clear()
	oma_blockedcontacts.update(resourcelists.Entry(uri) for uri in blocked_presence_uris)
	if allowed_dialog_uris != set(entry.uri for entry in dialog_grantedcontacts):
	dialog_grantedcontacts.clear()
	dialog_grantedcontacts.update(resourcelists.Entry(uri) for uri in allowed_dialog_uris)
	if blocked_dialog_uris != set(entry.uri for entry in dialog_blockedcontacts):
	dialog_blockedcontacts.clear()
	dialog_blockedcontacts.update(resourcelists.Entry(uri) for uri in blocked_dialog_uris)
	if subscribe_presence_uris != set(entry.uri for entry in sipsimple_presence_rls):
	sipsimple_presence_rls.clear()
	sipsimple_presence_rls.update(resourcelists.Entry(uri) for uri in subscribe_presence_uris)
	if subscribe_dialog_uris != set(entry.uri for entry in sipsimple_dialog_rls):
	sipsimple_dialog_rls.clear()
	sipsimple_dialog_rls.update(resourcelists.Entry(uri) for uri in subscribe_dialog_uris)

	# Normalize rls-services
	#
	if self.rls_services.content is None:
	self.rls_services.content = rlsservices.RLSServices()

	rls_services = self.rls_services.content

	rls_presence_uri = self.rls_presence_uri
	rls_dialog_uri = self.rls_dialog_uri
	rls_presence_list = rlsservices.ResourceList(self.resource_lists.uri + '/~~' + resource_lists.get_xpath(sipsimple_presence_rls))
	rls_dialog_list = rlsservices.ResourceList(self.resource_lists.uri + '/~~' + resource_lists.get_xpath(sipsimple_dialog_rls))

	try:
	rls_presence_service = rls_services[rls_presence_uri]
	except KeyError:
	rls_presence_service = rlsservices.Service(rls_presence_uri, list=rls_presence_list, packages=['presence'])
	rls_services.add(rls_presence_service)
	else:
	if rls_presence_service.list != rls_presence_list:
	rls_presence_service.list = rls_presence_list
	if list(rls_presence_service.packages) != ['presence']:
	rls_presence_service.packages = ['presence']
	try:
	rls_dialog_service = rls_services[rls_dialog_uri]
	except KeyError:
	rls_dialog_service = rlsservices.Service(rls_dialog_uri, list=rls_dialog_list, packages=['dialog'])
	rls_services.add(rls_dialog_service)
	else:
	if rls_dialog_service.list != rls_dialog_list:
	rls_dialog_service.list = rls_dialog_list
	if list(rls_dialog_service.packages) != ['dialog']:
	rls_dialog_service.packages = ['dialog']

	# Normalize pres-rules
	#
	if self.pres_rules.content is None:
	self.pres_rules.content = presrules.PresRules()

	def fix_subhandling(rule, valid_values=[]):
	subhandling_elements = sorted((item for item in rule.actions if isinstance(item, presrules.SubHandling)), key=attrgetter('value.priority'))
	if not subhandling_elements:
	subhandling_elements = [presrules.SubHandling('block')] # spec specifies that missing SubHandling means block
	rule.actions.update(subhandling_elements)
	subhandling = subhandling_elements.pop()
	for item in subhandling_elements: # remove any extraneous SubHandling elements
	rule.actions.remove(item)
	if subhandling.value not in valid_values:
	subhandling.value = valid_values[0]

	pres_rules = self.pres_rules.content

	oma_grantedcontacts_ref = omapolicy.ExternalList([self.resource_lists.uri + '/~~' + resource_lists.get_xpath(oma_grantedcontacts)])
	oma_blockedcontacts_ref = omapolicy.ExternalList([self.resource_lists.uri + '/~~' + resource_lists.get_xpath(oma_blockedcontacts)])

	try:
	wp_prs_grantedcontacts = pres_rules['wp_prs_grantedcontacts']
	except KeyError:
	wp_prs_grantedcontacts = commonpolicy.Rule('wp_prs_grantedcontacts', conditions=[oma_grantedcontacts_ref], actions=[presrules.SubHandling('allow')])
	pres_rules.add(wp_prs_grantedcontacts)
	else:
	fix_subhandling(wp_prs_grantedcontacts, valid_values=['allow'])
	if list(wp_prs_grantedcontacts.conditions) != [oma_grantedcontacts_ref]:
	wp_prs_grantedcontacts.conditions = [oma_grantedcontacts_ref]
	if wp_prs_grantedcontacts.transformations:
	wp_prs_grantedcontacts.transformations = None
	try:
	wp_prs_blockedcontacts = pres_rules['wp_prs_blockedcontacts']
	except KeyError:
	wp_prs_blockedcontacts = commonpolicy.Rule('wp_prs_blockedcontacts', conditions=[oma_blockedcontacts_ref], actions=[presrules.SubHandling('polite-block')])
	pres_rules.add(wp_prs_blockedcontacts)
	else:
	fix_subhandling(wp_prs_blockedcontacts, valid_values=['polite-block'])
	if list(wp_prs_blockedcontacts.conditions) != [oma_blockedcontacts_ref]:
	wp_prs_blockedcontacts.conditions = [oma_blockedcontacts_ref]
	if wp_prs_blockedcontacts.transformations:
	wp_prs_blockedcontacts.transformations = None

	wp_prs_unlisted = pres_rules.get('wp_prs_unlisted', None)
	wp_prs_allow_unlisted = pres_rules.get('wp_prs_allow_unlisted', None)

	if wp_prs_unlisted is not None and wp_prs_allow_unlisted is not None:
	pres_rules.remove(wp_prs_allow_unlisted)
	wp_prs_allow_unlisted = None

	wp_prs_unlisted_rule = wp_prs_unlisted or wp_prs_allow_unlisted

	if wp_prs_unlisted_rule is None:
	wp_prs_unlisted = commonpolicy.Rule('wp_prs_unlisted', conditions=[omapolicy.OtherIdentity()], actions=[presrules.SubHandling('confirm')])
	pres_rules.add(wp_prs_unlisted)
	wp_prs_unlisted_rule = wp_prs_unlisted
	else:
	if wp_prs_unlisted_rule is wp_prs_unlisted:
	fix_subhandling(wp_prs_unlisted_rule, valid_values=['confirm', 'block', 'polite-block'])
	else:
	fix_subhandling(wp_prs_unlisted_rule, valid_values=['allow'])
	if list(wp_prs_unlisted_rule.conditions) != [omapolicy.OtherIdentity()]:
	wp_prs_unlisted_rule.conditions = [omapolicy.OtherIdentity()]
	if wp_prs_unlisted_rule.transformations:
	wp_prs_unlisted_rule.transformations = None

	match_anonymous = omapolicy.AnonymousRequest()
	try:
	wp_prs_block_anonymous = pres_rules['wp_prs_block_anonymous']
	except KeyError:
	wp_prs_block_anonymous = commonpolicy.Rule('wp_prs_block_anonymous', conditions=[match_anonymous], actions=[presrules.SubHandling('block')])
	pres_rules.add(wp_prs_block_anonymous)
	else:
	fix_subhandling(wp_prs_block_anonymous, valid_values=['block', 'polite-block'])
	if list(wp_prs_block_anonymous.conditions) != [match_anonymous]:
	wp_prs_block_anonymous.conditions = [match_anonymous]
	if wp_prs_block_anonymous.transformations:
	wp_prs_block_anonymous.transformations = None

	match_self = commonpolicy.Identity([commonpolicy.IdentityOne('sip:' + self.account.id)])
	try:
	wp_prs_allow_own = pres_rules['wp_prs_allow_own']
	except KeyError:
	wp_prs_allow_own = commonpolicy.Rule('wp_prs_allow_own', conditions=[match_self], actions=[presrules.SubHandling('allow')])
	pres_rules.add(wp_prs_allow_own)
	else:
	fix_subhandling(wp_prs_allow_own, valid_values=['allow'])
	if list(wp_prs_allow_own.conditions) != [match_self]:
	wp_prs_allow_own.conditions = [match_self]
	if wp_prs_allow_own.transformations:
	wp_prs_allow_own.transformations = None

	# Remove any other rules
	all_rule_names = set(pres_rules[IterateIDs])
	known_rule_names = set(('wp_prs_grantedcontacts', 'wp_prs_blockedcontacts', 'wp_prs_unlisted', 'wp_prs_allow_unlisted', 'wp_prs_block_anonymous', 'wp_prs_allow_own'))
	for name in all_rule_names - known_rule_names:
	del pres_rules[name]

	del fix_subhandling

	# Normalize dialog-rules
	#
	if self.dialog_rules.supported:
	if self.dialog_rules.content is None:
	self.dialog_rules.content = dialogrules.DialogRules()
	elif self.dialog_rules.content.element.nsmap.get('dr') != dialogrules.namespace: # TODO: this elif branch should be removed in a later version as it is
	self.dialog_rules.content = dialogrules.DialogRules() # only used to discard documents created with the old namespace. -Dan

	def fix_subhandling(rule, valid_values=[]):
	subhandling_elements = sorted((item for item in rule.actions if isinstance(item, dialogrules.SubHandling)), key=attrgetter('value.priority'))
	if not subhandling_elements:
	subhandling_elements = [dialogrules.SubHandling('block')] # spec specifies that missing SubHandling means block
	rule.actions.update(subhandling_elements)
	subhandling = subhandling_elements.pop()
	for item in subhandling_elements: # remove any extraneous SubHandling elements
	rule.actions.remove(item)
	if subhandling.value not in valid_values:
	subhandling.value = valid_values[0]

	dialog_rules = self.dialog_rules.content

	dialog_grantedcontacts_ref = omapolicy.ExternalList([self.resource_lists.uri + '/~~' + resource_lists.get_xpath(dialog_grantedcontacts)])
	dialog_blockedcontacts_ref = omapolicy.ExternalList([self.resource_lists.uri + '/~~' + resource_lists.get_xpath(dialog_blockedcontacts)])

	try:
	wp_dlg_grantedcontacts = dialog_rules['wp_dlg_grantedcontacts']
	except KeyError:
	wp_dlg_grantedcontacts = commonpolicy.Rule('wp_dlg_grantedcontacts', conditions=[dialog_grantedcontacts_ref], actions=[dialogrules.SubHandling('allow')])
	dialog_rules.add(wp_dlg_grantedcontacts)
	else:
	fix_subhandling(wp_dlg_grantedcontacts, valid_values=['allow'])
	if list(wp_dlg_grantedcontacts.conditions) != [dialog_grantedcontacts_ref]:
	wp_dlg_grantedcontacts.conditions = [dialog_grantedcontacts_ref]
	if wp_dlg_grantedcontacts.transformations:
	wp_dlg_grantedcontacts.transformations = None
	try:
	wp_dlg_blockedcontacts = dialog_rules['wp_dlg_blockedcontacts']
	except KeyError:
	wp_dlg_blockedcontacts = commonpolicy.Rule('wp_dlg_blockedcontacts', conditions=[dialog_blockedcontacts_ref], actions=[dialogrules.SubHandling('polite-block')])
	dialog_rules.add(wp_dlg_blockedcontacts)
	else:
	fix_subhandling(wp_dlg_blockedcontacts, valid_values=['polite-block'])
	if list(wp_dlg_blockedcontacts.conditions) != [dialog_blockedcontacts_ref]:
	wp_dlg_blockedcontacts.conditions = [dialog_blockedcontacts_ref]
	if wp_dlg_blockedcontacts.transformations:
	wp_dlg_blockedcontacts.transformations = None

	wp_dlg_unlisted = dialog_rules.get('wp_dlg_unlisted', None)
	wp_dlg_allow_unlisted = dialog_rules.get('wp_dlg_allow_unlisted', None)

	if wp_dlg_unlisted is not None and wp_dlg_allow_unlisted is not None:
	dialog_rules.remove(wp_dlg_allow_unlisted)
	wp_dlg_allow_unlisted = None

	wp_dlg_unlisted_rule = wp_dlg_unlisted or wp_dlg_allow_unlisted

	if wp_dlg_unlisted_rule is None:
	wp_dlg_unlisted = commonpolicy.Rule('wp_dlg_unlisted', conditions=[omapolicy.OtherIdentity()], actions=[dialogrules.SubHandling('confirm')])
	dialog_rules.add(wp_dlg_unlisted)
	wp_dlg_unlisted_rule = wp_dlg_unlisted
	else:
	if wp_dlg_unlisted_rule is wp_dlg_unlisted:
	fix_subhandling(wp_dlg_unlisted_rule, valid_values=['confirm', 'block', 'polite-block'])
	else:
	fix_subhandling(wp_dlg_unlisted_rule, valid_values=['allow'])
	if list(wp_dlg_unlisted_rule.conditions) != [omapolicy.OtherIdentity()]:
	wp_dlg_unlisted_rule.conditions = [omapolicy.OtherIdentity()]
	if wp_dlg_unlisted_rule.transformations:
	wp_dlg_unlisted_rule.transformations = None

	match_anonymous = omapolicy.AnonymousRequest()
	try:
	wp_dlg_block_anonymous = dialog_rules['wp_dlg_block_anonymous']
	except KeyError:
	wp_dlg_block_anonymous = commonpolicy.Rule('wp_dlg_block_anonymous', conditions=[match_anonymous], actions=[dialogrules.SubHandling('block')])
	dialog_rules.add(wp_dlg_block_anonymous)
	else:
	fix_subhandling(wp_dlg_block_anonymous, valid_values=['block', 'polite-block'])
	if list(wp_dlg_block_anonymous.conditions) != [match_anonymous]:
	wp_dlg_block_anonymous.conditions = [match_anonymous]
	if wp_dlg_block_anonymous.transformations:
	wp_dlg_block_anonymous.transformations = None

	match_self = commonpolicy.Identity([commonpolicy.IdentityOne('sip:' + self.account.id)])
	try:
	wp_dlg_allow_own = dialog_rules['wp_dlg_allow_own']
	except KeyError:
	wp_dlg_allow_own = commonpolicy.Rule('wp_dlg_allow_own', conditions=[match_self], actions=[dialogrules.SubHandling('allow')])
	dialog_rules.add(wp_dlg_allow_own)
	else:
	fix_subhandling(wp_dlg_allow_own, valid_values=['allow'])
	if list(wp_dlg_allow_own.conditions) != [match_self]:
	wp_dlg_allow_own.conditions = [match_self]
	if wp_dlg_allow_own.transformations:
	wp_dlg_allow_own.transformations = None

	# Remove any other rules
	all_rule_names = set(dialog_rules[IterateIDs])
	known_rule_names = set(('wp_dlg_grantedcontacts', 'wp_dlg_blockedcontacts', 'wp_dlg_unlisted', 'wp_dlg_allow_unlisted', 'wp_dlg_block_anonymous', 'wp_dlg_allow_own'))
	for name in all_rule_names - known_rule_names:
	del dialog_rules[name]

	# Normalize status icon
	#
	if self.status_icon.supported and self.status_icon.content is not None:
	content = self.status_icon.content
	if None in (content.encoding, content.mime_type) or content.encoding.value.lower() != 'base64' or content.mime_type.value.lower() not in Icon.__mimetypes__:
	self.status_icon.content = None
	self.status_icon.dirty = True

	def _OH_AddContactOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	contact = operation.contact
	presence_handling = addressbook.PresenceHandling(contact.presence.policy, contact.presence.subscribe)
	dialog_handling = addressbook.DialogHandling(contact.dialog.policy, contact.dialog.subscribe)
	xml_contact = addressbook.Contact(contact.id, contact.name, presence_handling=presence_handling, dialog_handling=dialog_handling)
	for uri in contact.uris:
	contact_uri = addressbook.ContactURI(uri.id, uri.uri, uri.type)
	contact_uri.attributes = addressbook.ContactURI.attributes.type(uri.attributes)
	xml_contact.uris.add(contact_uri)
	xml_contact.attributes = addressbook.Contact.attributes.type(contact.attributes)
	sipsimple_addressbook.add(xml_contact)

	def _OH_UpdateContactOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	try:
	contact = sipsimple_addressbook[addressbook.Contact, operation.contact.id]
	except KeyError:
	return
	attributes = dict(operation.attributes)
	attributes.pop('id', None) # id is never modified
	attributes.pop('uris', None) # uris are modified using dedicated methods
	if 'name' in attributes:
	contact.name = attributes.pop('name')
	if 'presence.policy' in attributes:
	contact.presence.policy = attributes.pop('presence.policy')
	if 'presence.subscribe' in attributes:
	contact.presence.subscribe = attributes.pop('presence.subscribe')
	if 'dialog.policy' in attributes:
	contact.dialog.policy = attributes.pop('dialog.policy')
	if 'dialog.subscribe' in attributes:
	contact.dialog.subscribe = attributes.pop('dialog.subscribe')
	if contact.attributes is None:
	contact.attributes = addressbook.Contact.attributes.type()
	contact.attributes.update(attributes)

	def _OH_RemoveContactOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	for group in (group for group in sipsimple_addressbook[addressbook.Group, IterateItems] if operation.contact.id in group.contacts):
	group.contacts.remove(operation.contact.id)
	try:
	del sipsimple_addressbook[addressbook.Contact, operation.contact.id]
	except KeyError:
	pass

	def _OH_AddContactURIOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	try:
	contact = sipsimple_addressbook[addressbook.Contact, operation.contact.id]
	except KeyError:
	return
	uri = addressbook.ContactURI(operation.uri.id, operation.uri.uri, operation.uri.type)
	uri.attributes = addressbook.ContactURI.attributes.type(operation.uri.attributes)
	contact.uris.add(uri)

	def _OH_UpdateContactURIOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	try:
	contact = sipsimple_addressbook[addressbook.Contact, operation.contact.id]
	uri = contact.uris[operation.uri.id]
	except KeyError:
	return
	attributes = dict(operation.attributes)
	attributes.pop('id', None) # id is never modified
	if 'uri' in attributes:
	uri.uri = attributes.pop('uri')
	if 'type' in attributes:
	uri.type = attributes.pop('type')
	if uri.attributes is None:
	uri.attributes = addressbook.ContactURI.attributes.type()
	uri.attributes.update(attributes)

	def _OH_RemoveContactURIOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	try:
	contact = sipsimple_addressbook[addressbook.Contact, operation.contact.id]
	del contact.uris[operation.uri.id]
	except KeyError:
	pass

	def _OH_AddGroupOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	group = addressbook.Group(operation.group.id, operation.group.name, [contact.id for contact in operation.group.contacts])
	group.attributes = addressbook.Group.attributes.type(operation.group.attributes)
	sipsimple_addressbook.add(group)

	def _OH_UpdateGroupOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	try:
	group = sipsimple_addressbook[addressbook.Group, operation.group.id]
	except KeyError:
	return
	attributes = dict(operation.attributes)
	attributes.pop('id', None) # id is never modified
	attributes.pop('contacts', None) # contacts are added/removed using dedicated methods
	if 'name' in attributes:
	group.name = attributes.pop('name')
	if group.attributes is None:
	group.attributes = addressbook.Group.attributes.type()
	group.attributes.update(attributes)

	def _OH_RemoveGroupOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	try:
	del sipsimple_addressbook[addressbook.Group, operation.group.id]
	except KeyError:
	pass

	def _OH_AddGroupMemberOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	try:
	group = sipsimple_addressbook[addressbook.Group, operation.group.id]
	except KeyError:
	return
	if operation.contact.id in group.contacts:
	return
	group.contacts.add(operation.contact.id)

	def _OH_RemoveGroupMemberOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	try:
	group = sipsimple_addressbook[addressbook.Group, operation.group.id]
	group.contacts.remove(operation.contact.id)
	except KeyError:
	return

	def _OH_AddPolicyOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	presence_handling = addressbook.PresenceHandling(operation.policy.presence.policy, operation.policy.presence.subscribe)
	dialog_handling = addressbook.DialogHandling(operation.policy.dialog.policy, operation.policy.dialog.subscribe)
	policy = addressbook.Policy(operation.policy.id, operation.policy.uri, operation.policy.name, presence_handling=presence_handling, dialog_handling=dialog_handling)
	policy.attributes = addressbook.Policy.attributes.type(operation.policy.attributes)
	sipsimple_addressbook.add(policy)

	def _OH_UpdatePolicyOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	try:
	policy = sipsimple_addressbook[addressbook.Policy, operation.policy.id]
	except KeyError:
	return
	attributes = dict(operation.attributes)
	attributes.pop('id', None) # id is never modified
	if 'uri' in attributes:
	policy.uri = attributes.pop('uri')
	if 'name' in attributes:
	policy.name = attributes.pop('name')
	if 'presence.policy' in attributes:
	policy.presence.policy = attributes.pop('presence.policy')
	if 'presence.subscribe' in attributes:
	policy.presence.subscribe = attributes.pop('presence.subscribe')
	if 'dialog.policy' in attributes:
	policy.dialog.policy = attributes.pop('dialog.policy')
	if 'dialog.subscribe' in attributes:
	policy.dialog.subscribe = attributes.pop('dialog.subscribe')
	if policy.attributes is None:
	policy.attributes = addressbook.Policy.attributes.type()
	policy.attributes.update(attributes)

	def _OH_RemovePolicyOperation(self, operation):
	sipsimple_addressbook = self.resource_lists.content['sipsimple_addressbook']
	try:
	del sipsimple_addressbook[addressbook.Policy, operation.policy.id]
	except KeyError:
	pass

	def _OH_SetStatusIconOperation(self, operation):
	if not self.status_icon.supported:
	return
	icon = operation.icon
	if icon is None or not icon.data:
	self.status_icon.dirty = self.status_icon.content is not None
	self.status_icon.content = None
	else:
	content = prescontent.PresenceContent(data=base64.encodestring(icon.data), mime_type=icon.mime_type, encoding='base64', description=icon.description)
	if self.status_icon.content == content:
	return
	self.status_icon.content = content

	def _OH_SetOfflineStatusOperation(self, operation):
	pidf = operation.status.pidf if operation.status is not None else None
	if not self.pidf_manipulation.supported or pidf == self.pidf_manipulation.content:
	return
	self.pidf_manipulation.content = pidf
	self.pidf_manipulation.dirty = True

	def _OH_SetDefaultPresencePolicyOperation(self, operation):
	pres_rules = self.pres_rules.content
	if operation.policy == 'allow':
	rule_id, other_rule_id = 'wp_prs_allow_unlisted', 'wp_prs_unlisted'
	else:
	rule_id, other_rule_id = 'wp_prs_unlisted', 'wp_prs_allow_unlisted'
	try:
	del pres_rules[other_rule_id]
	except KeyError:
	rule = pres_rules[rule_id]
	subhandling = next(item for item in rule.actions if isinstance(item, presrules.SubHandling))
	subhandling.value = operation.policy
	else:
	rule = commonpolicy.Rule(rule_id, conditions=[omapolicy.OtherIdentity()], actions=[presrules.SubHandling(operation.policy)])
	pres_rules.add(rule)

	def _OH_SetDefaultDialogPolicyOperation(self, operation):
	if not self.dialog_rules.supported:
	return
	dialog_rules = self.dialog_rules.content
	if operation.policy == 'allow':
	rule_id, other_rule_id = 'wp_dlg_allow_unlisted', 'wp_dlg_unlisted'
	else:
	rule_id, other_rule_id = 'wp_dlg_unlisted', 'wp_dlg_allow_unlisted'
	try:
	del dialog_rules[other_rule_id]
	except KeyError:
	rule = dialog_rules[rule_id]
	subhandling = next(item for item in rule.actions if isinstance(item, dialogrules.SubHandling))
	subhandling.value = operation.policy
	else:
	rule = commonpolicy.Rule(rule_id, conditions=[omapolicy.OtherIdentity()], actions=[dialogrules.SubHandling(operation.policy)])
	dialog_rules.add(rule)

	# Notification handlers
	#

	@run_in_twisted_thread
	def handle_notification(self, notification):
	handler = getattr(self, '_NH_%s' % notification.name, Null)
	handler(notification)

	@run_in_green_thread
	def _NH_CFGSettingsObjectDidChange(self, notification):
	if set(['__id__', 'xcap.xcap_root', 'auth.username', 'auth.password', 'sip.subscribe_interval', 'sip.transport_list']).intersection(notification.data.modified):
	self.command_channel.send(Command('reload', modified=notification.data.modified))
	if 'enabled' in notification.data.modified:
	return # global account activation is handled separately by the account itself
	if self.account.enabled and 'xcap.enabled' in notification.data.modified:
	if self.account.xcap.enabled:
	self.start()
	else:
	self.stop()

	def _NH_CFGSettingsObjectWasDeleted(self, notification):
	- notification_center = NotificationCenter()
	- notification_center.remove_observer(self, sender=self.account, name='CFGSettingsObjectDidChange')
	- notification_center.remove_observer(self, sender=self.account, name='CFGSettingsObjectWasDeleted')
	+ notification.center.remove_observer(self, sender=self.account, name='CFGSettingsObjectDidChange')
	+ notification.center.remove_observer(self, sender=self.account, name='CFGSettingsObjectWasDeleted')
	self.command_channel.send(Command('stop'))
	self.command_channel.send(Command('cleanup'))

	def _NH_XCAPSubscriptionDidStart(self, notification):
	self.command_channel.send(Command('fetch', documents=set(self.document_names)))

	def _NH_XCAPSubscriptionDidFail(self, notification):
	self.command_channel.send(Command('fetch', documents=set(self.document_names)))

	def _NH_XCAPSubscriptionGotNotify(self, notification):
	if notification.data.content_type == xcapdiff.XCAPDiffDocument.content_type:
	try:
	xcap_diff = xcapdiff.XCAPDiffDocument.parse(notification.data.body)
	except ParserError:
	self.command_channel.send(Command('fetch', documents=set(self.document_names)))
	else:
	applications = set(child.selector.auid for child in xcap_diff if isinstance(child, xcapdiff.Document))
	documents = set(document.name for document in self.documents if document.application in applications)
	self.command_channel.send(Command('fetch', documents=documents))

	def _load_data(self):
	addressbook = Addressbook.from_payload(self.resource_lists.content['sipsimple_addressbook'])

	default_presence_rule = self.pres_rules.content.get('wp_prs_unlisted', None) or self.pres_rules.content.get('wp_prs_allow_unlisted', None)
	if self.dialog_rules.supported:
	default_dialog_rule = self.dialog_rules.content.get('wp_dlg_unlisted', None) or self.dialog_rules.content.get('wp_dlg_allow_unlisted', None)
	else:
	default_dialog_rule = None
	presence_rules = PresenceRules.from_payload(default_presence_rule)
	dialog_rules = DialogRules.from_payload(default_dialog_rule)

	if self.status_icon.supported and self.status_icon.content:
	status_icon = Icon.from_payload(self.status_icon.content, self.status_icon.alternative_location)
	else:
	status_icon = None

	if self.pidf_manipulation.supported and self.pidf_manipulation.content:
	offline_status = OfflineStatus(self.pidf_manipulation.content)
	else:
	offline_status = None

	data=TimestampedNotificationData(addressbook=addressbook, presence_rules=presence_rules, dialog_rules=dialog_rules, status_icon=status_icon, offline_status=offline_status)
	NotificationCenter().post_notification('XCAPManagerDidReloadData', sender=self, data=data)

	def _fetch_documents(self, documents):
	workers = [Worker.spawn(document.fetch) for document in (doc for doc in self.documents if doc.name in documents and doc.supported)]
	try:
	while workers:
	worker = workers.pop()
	worker.wait()
	finally:
	for worker in workers:
	worker.wait_ex()

	def _save_journal(self):
	try:
	self.storage.save('journal', cPickle.dumps(self.journal))
	except XCAPStorageError:
	pass

	def _schedule_command(self, timeout, command):
	from twisted.internet import reactor
	timer = reactor.callLater(timeout, self.command_channel.send, command)
	timer.command = command
	return timer


	class XCAPTransaction(object):
	def __init__(self, xcap_manager):
	self.xcap_manager = xcap_manager

	def __enter__(self):
	self.xcap_manager.start_transaction()
	return self

	def __exit__(self, type, value, traceback):
	self.xcap_manager.commit_transaction()

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