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	diff --git a/pykolab/xml/event.py b/pykolab/xml/event.py
	index 7a81ab8..ab643a5 100644
	--- a/pykolab/xml/event.py
	+++ b/pykolab/xml/event.py
	@@ -1,1445 +1,1453 @@
	import datetime
	import icalendar
	import kolabformat
	import pytz
	import time
	import uuid
	import base64
	import re

	import pykolab
	from pykolab import constants
	from pykolab import utils
	from pykolab.xml import utils as xmlutils
	from pykolab.xml import participant_status_label
	from pykolab.translate import _

	from os import path
	from attendee import Attendee
	from contact_reference import ContactReference
	from recurrence_rule import RecurrenceRule

	log = pykolab.getLogger('pykolab.xml_event')

	def ustr(s):
	if not isinstance(s, unicode):
	for cs in ['utf-8','latin-1']:
	try:
	s = unicode(s, cs)
	break
	except:
	pass

	if isinstance(s, unicode):
	return s.encode('utf-8')

	return s

	def event_from_ical(ical, string=None):
	return Event(from_ical=ical, from_string=string)

	def event_from_string(string):
	return Event(from_string=string)

	def event_from_message(message):
	event = None
	if message.is_multipart():
	for part in message.walk():
	if part.get_content_type() == "application/calendar+xml":
	payload = part.get_payload(decode=True)
	event = event_from_string(payload)

	# append attachment parts to Event object
	elif event and part.has_key('Content-ID'):
	event._attachment_parts.append(part)

	return event


	class Event(object):
	type = 'event'
	thisandfuture = False

	status_map = {
	None: kolabformat.StatusUndefined,
	"TENTATIVE": kolabformat.StatusTentative,
	"CONFIRMED": kolabformat.StatusConfirmed,
	"CANCELLED": kolabformat.StatusCancelled,
	"COMPLETED": kolabformat.StatusCompleted,
	"IN-PROCESS": kolabformat.StatusInProcess,
	"NEEDS-ACTION": kolabformat.StatusNeedsAction,
	}

	classification_map = {
	"PUBLIC": kolabformat.ClassPublic,
	"PRIVATE": kolabformat.ClassPrivate,
	"CONFIDENTIAL": kolabformat.ClassConfidential,
	}

	alarm_type_map = {
	'EMAIL': kolabformat.Alarm.EMailAlarm,
	'DISPLAY': kolabformat.Alarm.DisplayAlarm,
	'AUDIO': kolabformat.Alarm.AudioAlarm
	}

	related_map = {
	'START': kolabformat.Start,
	'END': kolabformat.End
	}

	properties_map = {
	# property: getter
	"uid": "get_uid",
	"created": "get_created",
	"lastmodified-date": "get_lastmodified",
	"sequence": "sequence",
	"classification": "get_classification",
	"categories": "categories",
	"start": "get_start",
	"end": "get_end",
	"duration": "get_duration",
	"transparency": "transparency",
	"rrule": "recurrenceRule",
	"rdate": "recurrenceDates",
	"exdate": "exceptionDates",
	"recurrence-id": "recurrenceID",
	"summary": "summary",
	"description": "description",
	"priority": "priority",
	"status": "get_ical_status",
	"location": "location",
	"organizer": "organizer",
	"attendee": "get_attendees",
	"attach": "attachments",
	"url": "url",
	"alarm": "alarms",
	"x-custom": "customProperties",
	# TODO: add to_dict() support for these
	# "exception": "exceptions",
	}

	def __init__(self, from_ical="", from_string=""):
	self._attendees = []
	self._categories = []
	self._exceptions = []
	self._attachment_parts = []

	if isinstance(from_ical, str) and from_ical == "":
	if from_string == "":
	self.event = kolabformat.Event()
	else:
	self.event = kolabformat.readEvent(from_string, False)
	self._load_attendees()
	self._load_exceptions()
	else:
	self.from_ical(from_ical, from_string)

	self.uid = self.get_uid()

	def _load_attendees(self):
	for a in self.event.attendees():
	att = Attendee(a.contact().email())
	att.copy_from(a)
	self._attendees.append(att)

	def _load_exceptions(self):
	for ex in self.event.exceptions():
	exception = Event()
	exception.uid = ex.uid()
	exception.event = ex
	exception._load_attendees()
	self._exceptions.append(exception)

	def add_attendee(self, email_or_attendee, name=None, rsvp=False, role=None, participant_status=None, cutype="INDIVIDUAL", params=None):
	if isinstance(email_or_attendee, Attendee):
	attendee = email_or_attendee
	else:
	attendee = Attendee(email_or_attendee, name, rsvp, role, participant_status, cutype, params)

	# apply update to self and all exceptions
	self.update_attendees([attendee], True)

	def add_category(self, category):
	self._categories.append(ustr(category))
	self.event.setCategories(self._categories)

	def add_exception_date(self, _datetime):
	valid_datetime = False
	if isinstance(_datetime, datetime.date):
	valid_datetime = True

	if isinstance(_datetime, datetime.datetime):
	# If no timezone information is passed on, make it UTC
	if _datetime.tzinfo == None:
	_datetime = _datetime.replace(tzinfo=pytz.utc)

	valid_datetime = True

	if not valid_datetime:
	raise InvalidEventDateError, _("Exdate needs datetime.date or datetime.datetime instance, got %r") % (type(_datetime))

	self.event.addExceptionDate(xmlutils.to_cdatetime(_datetime, True))

	def add_exception(self, exception):
	recurrence_id = exception.get_recurrence_id()
	if recurrence_id is None:
	raise EventIntegrityError, "Recurrence exceptions require a Recurrence-ID property"

	# check if an exception with the given recurrence-id already exists
	append = True
	vexceptions = self.event.exceptions()
	for i, ex in enumerate(self._exceptions):
	if ex.get_recurrence_id() == recurrence_id and ex.thisandfuture == exception.thisandfuture:
	# update the existing exception
	vexceptions[i] = exception.event
	self._exceptions[i] = exception
	append = False

	# check if main event matches the given recurrence-id
	if append and self.get_recurrence_id() == recurrence_id:
	self.event = exception.event
	self._load_attendees()
	self._load_exceptions()
	append = False

	if append:
	vexceptions.append(exception.event)
	self._exceptions.append(exception)

	self.event.setExceptions(vexceptions)

	def as_string_itip(self, method="REQUEST"):
	cal = icalendar.Calendar()
	cal.add(
	'prodid',
	'-//pykolab-%s-%s//kolab.org//' % (
	constants.__version__,
	constants.__release__
	)
	)

	cal.add('version', '2.0')
	# TODO: Really?
	cal.add('calscale', 'GREGORIAN')
	# TODO: Not always a request...
	cal.add('method', method)

	# TODO: Add timezone information using icalendar.?()
	# Not sure if there is a class for it.

	cal.add_component(self.to_ical())

	# add recurrence exceptions
	if len(self._exceptions) > 0 and not method == 'REPLY':
	for exception in self._exceptions:
	cal.add_component(exception.to_ical())

	if hasattr(cal, 'to_ical'):
	return cal.to_ical()
	elif hasattr(cal, 'as_string'):
	return cal.as_string()

	def to_ical(self):
	event = icalendar.Event()

	# Required
	event['uid'] = self.get_uid()

	# NOTE: Make sure to list(set()) or duplicates may arise
	for attr in list(set(event.singletons)):
	_attr = attr.lower().replace('-', '')
	ical_getter = 'get_ical_%s' % (_attr)
	default_getter = 'get_%s' % (_attr)
	retval = None
	if hasattr(self, ical_getter):
	retval = getattr(self, ical_getter)()
	if not retval == None and not retval == "":
	event.add(attr.lower(), retval)
	elif hasattr(self, default_getter):
	retval = getattr(self, default_getter)()
	if not retval == None and not retval == "":
	event.add(attr.lower(), retval, encode=0)

	# NOTE: Make sure to list(set()) or duplicates may arise
	for attr in list(set(event.multiple)):
	_attr = attr.lower().replace('-', '')
	ical_getter = 'get_ical_%s' % (_attr)
	default_getter = 'get_%s' % (_attr)
	retval = None
	if hasattr(self, ical_getter):
	retval = getattr(self, ical_getter)()
	elif hasattr(self, default_getter):
	retval = getattr(self, default_getter)()

	if isinstance(retval, list) and not len(retval) == 0:
	for _retval in retval:
	event.add(attr.lower(), _retval, encode=0)

	# copy custom properties to iCal
	for cs in self.event.customProperties():
	event.add(cs.identifier, cs.value)

	return event

	def delegate(self, delegators, delegatees, names=None):
	if not isinstance(delegators, list):
	delegators = [delegators]

	if not isinstance(delegatees, list):
	delegatees = [delegatees]

	if not isinstance(names, list):
	names = [names]

	_delegators = []
	for delegator in delegators:
	_delegators.append(self.get_attendee(delegator))

	_delegatees = []

	for i,delegatee in enumerate(delegatees):
	try:
	_delegatees.append(self.get_attendee(delegatee))
	except:
	# TODO: An iTip needs to be sent out to the new attendee
	self.add_attendee(delegatee, names[i] if i < len(names) else None)
	_delegatees.append(self.get_attendee(delegatee))

	for delegator in _delegators:
	delegator.delegate_to(_delegatees)

	for delegatee in _delegatees:
	delegatee.delegate_from(_delegators)

	self.event.setAttendees(self._attendees)

	def from_ical(self, ical, raw=None):
	if isinstance(ical, icalendar.Event) or isinstance(ical, icalendar.Calendar):
	ical_event = ical
	elif hasattr(icalendar.Event, 'from_ical'):
	ical_event = icalendar.Event.from_ical(ical)
	elif hasattr(icalendar.Event, 'from_string'):
	ical_event = icalendar.Event.from_string(ical)

	# VCALENDAR block was given, find the first VEVENT item
	if isinstance(ical_event, icalendar.Calendar):
	for c in ical_event.walk():
	if c.name == 'VEVENT':
	ical_event = c
	break

	# use the libkolab calendaring bindings to load the full iCal data
	if ical_event.has_key('RRULE') or ical_event.has_key('ATTACH') \
	or [part for part in ical_event.walk() if part.name == 'VALARM']:
	if raw is None or raw == "":
	raw = ical if isinstance(ical, str) else ical.to_ical()
	self._xml_from_ical(raw)
	else:
	self.event = kolabformat.Event()

	# TODO: Clause the timestamps for zulu suffix causing datetime.datetime
	# to fail substitution.
	for attr in list(set(ical_event.required)):
	if ical_event.has_key(attr):
	self.set_from_ical(attr.lower(), ical_event[attr])

	# NOTE: Make sure to list(set()) or duplicates may arise
	for attr in list(set(ical_event.singletons)):
	if ical_event.has_key(attr):
	self.set_from_ical(attr.lower(), ical_event[attr])

	# NOTE: Make sure to list(set()) or duplicates may arise
	for attr in list(set(ical_event.multiple)):
	if ical_event.has_key(attr):
	self.set_from_ical(attr.lower(), ical_event[attr])

	def _xml_from_ical(self, ical):
	if not "BEGIN:VCALENDAR" in ical:
	ical = "BEGIN:VCALENDAR\nVERSION:2.0\n" + ical + "\nEND:VCALENDAR"
	from kolab.calendaring import EventCal
	self.event = EventCal()
	success = self.event.fromICal(ical)
	if success:
	self._load_exceptions()
	return success

	def get_attendee_participant_status(self, attendee):
	return attendee.get_participant_status()

	def get_attendee(self, attendee):
	if isinstance(attendee, basestring):
	if attendee in [x.get_email() for x in self.get_attendees()]:
	attendee = self.get_attendee_by_email(attendee)

	elif attendee in [x.get_name() for x in self.get_attendees()]:
	attendee = self.get_attendee_by_name(attendee)

	else:
	raise ValueError, _("No attendee with email or name %r") %(attendee)

	return attendee

	elif isinstance(attendee, Attendee):
	return attendee

	else:
	raise ValueError, _("Invalid argument value attendee %r, must be basestring or Attendee") % (attendee)

	def find_attendee(self, attendee):
	try:
	return self.get_attendee(attendee)
	except:
	return None

	def get_attendee_by_email(self, email):
	if email in [x.get_email() for x in self.get_attendees()]:
	return [x for x in self.get_attendees() if x.get_email() == email][0]

	raise ValueError, _("No attendee with email %r") %(email)

	def get_attendee_by_name(self, name):
	if name in [x.get_name() for x in self.get_attendees()]:
	return [x for x in self.get_attendees() if x.get_name() == name][0]

	raise ValueError, _("No attendee with name %r") %(name)

	def get_attendees(self):
	return self._attendees

	def get_categories(self):
	return [str(c) for c in self.event.categories()]

	def get_classification(self):
	return self.event.classification()

	def get_created(self):
	try:
	return xmlutils.from_cdatetime(self.event.created(), True)
	except ValueError:
	return datetime.datetime.now()

	def get_description(self):
	return self.event.description()

	def get_comment(self):
	if hasattr(self.event, 'comment'):
	return self.event.comment()
	else:
	return None

	def get_duration(self):
	duration = self.event.duration()
	if duration and duration.isValid():
	dtd = datetime.timedelta(
	days=duration.days(),
	seconds=duration.seconds(),
	minutes=duration.minutes(),
	hours=duration.hours(),
	weeks=duration.weeks()
	)
	return dtd

	return None

	def get_end(self):
	dt = xmlutils.from_cdatetime(self.event.end(), True)
	if not dt:
	duration = self.get_duration()
	if duration is not None:
	dt = self.get_start() + duration
	return dt

	def get_date_text(self, date_format=None, time_format=None):
	if date_format is None:
	date_format = _("%Y-%m-%d")
	if time_format is None:
	time_format = _("%H:%M (%Z)")

	start = self.get_start()
	end = self.get_end()
	all_day = not hasattr(start, 'date')
	start_date = start.date() if not all_day else start
	end_date = end.date() if not all_day else end

	if start_date == end_date:
	end_format = time_format
	else:
	end_format = date_format + " " + time_format

	if all_day:
	time_format = ''
	if start_date == end_date:
	return start.strftime(date_format)

	return "%s - %s" % (start.strftime(date_format + " " + time_format), end.strftime(end_format))

	def get_exception_dates(self):
	return map(lambda _: xmlutils.from_cdatetime(_, True), self.event.exceptionDates())

	def get_exceptions(self):
	return self._exceptions

	def has_exceptions(self):
	return len(self._exceptions) > 0

	def get_attachments(self):
	return self.event.attachments()

	def get_attachment_data(self, i):
	vattach = self.event.attachments()
	if i < len(vattach):
	attachment = vattach[i]
	uri = attachment.uri()
	if uri and uri[0:4] == 'cid:':
	# get data from MIME part with matching content-id
	cid = '<' + uri[4:] + '>'
	for p in self._attachment_parts:
	if p['Content-ID'] == cid:
	return p.get_payload(decode=True)
	else:
	return attachment.data()

	return None

	def get_alarms(self):
	return self.event.alarms()

	def get_ical_attendee(self):
	# TODO: Formatting, aye? See also the example snippet:
	#
	# ATTENDEE;RSVP=TRUE;ROLE=REQ-PARTICIPANT;CUTYPE=GROUP:
	# MAILTO:employee-A@host.com

	attendees = []
	for attendee in self.get_attendees():
	email = attendee.get_email()
	name = attendee.get_name()
	rsvp = attendee.get_rsvp()
	role = attendee.get_role()
	partstat = attendee.get_participant_status()
	cutype = attendee.get_cutype()
	delegators = attendee.get_delegated_from()
	delegatees = attendee.get_delegated_to()

	if rsvp in attendee.rsvp_map.keys():
	_rsvp = rsvp
	elif rsvp in attendee.rsvp_map.values():
	_rsvp = [k for k, v in attendee.rsvp_map.iteritems() if v == rsvp][0]
	else:
	_rsvp = None

	if role in attendee.role_map.keys():
	_role = role
	elif role in attendee.role_map.values():
	_role = [k for k, v in attendee.role_map.iteritems() if v == role][0]
	else:
	_role = None

	if partstat in attendee.participant_status_map.keys():
	_partstat = partstat
	elif partstat in attendee.participant_status_map.values():
	_partstat = [k for k, v in attendee.participant_status_map.iteritems() if v == partstat][0]
	else:
	_partstat = None

	if cutype in attendee.cutype_map.keys():
	_cutype = cutype
	elif cutype in attendee.cutype_map.values():
	_cutype = [k for k, v in attendee.cutype_map.iteritems() if v == cutype][0]
	else:
	_cutype = None

	_attendee = icalendar.vCalAddress("MAILTO:%s" % email)
	if not name == None and not name == "":
	_attendee.params['CN'] = icalendar.vText(name)

	if not _rsvp == None:
	_attendee.params['RSVP'] = icalendar.vText(_rsvp)

	if not _role == None:
	_attendee.params['ROLE'] = icalendar.vText(_role)

	if not _partstat == None:
	_attendee.params['PARTSTAT'] = icalendar.vText(_partstat)

	if not _cutype == None:
	_attendee.params['CUTYPE'] = icalendar.vText(_cutype)

	if not delegators == None and len(delegators) > 0:
	_attendee.params['DELEGATED-FROM'] = icalendar.vText(delegators[0].email())

	if not delegatees == None and len(delegatees) > 0:
	_attendee.params['DELEGATED-TO'] = icalendar.vText(delegatees[0].email())

	attendees.append(_attendee)

	return attendees

	def get_ical_attendee_participant_status(self, attendee):
	attendee = self.get_attendee(attendee)

	if attendee.get_participant_status() in attendee.participant_status_map.keys():
	return attendee.get_participant_status()
	elif attendee.get_participant_status() in attendee.participant_status_map.values():
	return [k for k, v in attendee.participant_status_map.iteritems() if v == attendee.get_participant_status()][0]
	else:
	raise ValueError, _("Invalid participant status")

	def get_ical_created(self):
	return self.get_created()

	def get_ical_dtend(self):
	dtend = self.get_end()
	# shift end by one day on all-day events
	if not hasattr(dtend, 'hour'):
	dtend = dtend + datetime.timedelta(days=1)
	return dtend

	def get_ical_dtstamp(self):
	try:
	retval = self.get_lastmodified()
	if retval == None or retval == "":
	return datetime.datetime.now()
	except:
	return datetime.datetime.now()

	def get_ical_lastmodified(self):
	return self.get_ical_dtstamp()

	def get_ical_dtstart(self):
	return self.get_start()

	def get_ical_organizer(self):
	contact = self.get_organizer()
	organizer = icalendar.vCalAddress("MAILTO:%s" % contact.email())
	name = contact.name()

	if not name == None and not name == "":
	organizer.params["CN"] = icalendar.vText(name)

	return organizer

	def get_ical_status(self):
	status = self.event.status()

	if status in self.status_map.keys():
	return status

	return self._translate_value(status, self.status_map) if status else None

	def get_ical_class(self):
	class_ = self.event.classification()
	return self._translate_value(class_, self.classification_map) if class_ else None

	def get_ical_sequence(self):
	return str(self.event.sequence()) if self.event.sequence() else None

	def get_ical_comment(self):
	comment = self.get_comment()
	if comment is not None:
	return [ comment ]
	return None

	def get_ical_recurrenceid(self):
	rid = self.get_recurrence_id()
	if isinstance(rid, datetime.datetime) or isinstance(rid, datetime.date):
	prop = icalendar.vDatetime(rid)
	if self.thisandfuture:
	prop.params.update({'RANGE':'THISANDFUTURE'})
	return prop

	return None

	def get_ical_rrule(self):
	result = []
	rrule = self.get_recurrence()
	if rrule.isValid():
	result.append(rrule.to_ical())
	return result

	def get_location(self):
	return self.event.location()

	def get_lastmodified(self):
	try:
	_datetime = self.event.lastModified()
	if retval == None or retval == "":
	self.__str__()
	except:
	self.__str__()

	return xmlutils.from_cdatetime(self.event.lastModified(), True)

	def get_organizer(self):
	organizer = self.event.organizer()
	return organizer

	def get_priority(self):
	return str(self.event.priority())

	def get_start(self):
	return xmlutils.from_cdatetime(self.event.start(), True)

	def get_status(self, translated=False):
	status = self.event.status()
	if translated:
	return self._translate_value(status, self.status_map) if status else None

	return status

	def get_summary(self):
	return self.event.summary()

	def get_uid(self):
	uid = self.event.uid()
	if not uid == '':
	return uid
	else:
	self.set_uid(uuid.uuid4())
	return self.get_uid()

	def get_recurrence_id(self):
	self.thisandfuture = self.event.thisAndFuture();
	- return xmlutils.from_cdatetime(self.event.recurrenceID(), True)
	+ recurrence_id = xmlutils.from_cdatetime(self.event.recurrenceID(), True)
	+
	+ # fix recurrence-id type if stored as date instead of datetime
	+ if recurrence_id is not None and isinstance(recurrence_id, datetime.date):
	+ dtstart = self.get_start()
	+ if not type(recurrence_id) == type(dtstart):
	+ recurrence_id = datetime.datetime.combine(recurrence_id, dtstart.time()).replace(tzinfo=dtstart.tzinfo)
	+
	+ return recurrence_id

	def get_thisandfuture(self):
	self.thisandfuture = self.event.thisAndFuture();
	return self.thisandfuture

	def get_sequence(self):
	return self.event.sequence()

	def get_url(self):
	return self.event.url()

	def get_transparency(self):
	return self.event.transparency()

	def get_recurrence(self):
	return RecurrenceRule(self.event.recurrenceRule())

	def set_attendees(self, _attendees, recursive=False):
	if recursive:
	self._attendees = []
	self.update_attendees(_attendees, True)
	else:
	self._attendees = _attendees
	self.event.setAttendees(self._attendees)

	def set_attendee_participant_status(self, attendee, status, rsvp=None):
	"""
	Set the participant status of an attendee to status.

	As the attendee arg, pass an email address or name, for this
	function to obtain the attendee object by searching the list of
	attendees for this event.
	"""
	attendee = self.get_attendee(attendee)
	attendee.set_participant_status(status)

	if rsvp is not None:
	attendee.set_rsvp(rsvp)

	# apply update to self and all exceptions
	self.update_attendees([attendee], False)

	def update_attendees(self, _attendees, append=True):
	self.merge_attendee_data(_attendees, append)

	if len(self._exceptions):
	vexceptions = self.event.exceptions()
	for i, exception in enumerate(self._exceptions):
	exception.merge_attendee_data(_attendees, append)
	vexceptions[i] = exception.event
	self.event.setExceptions(vexceptions)

	def merge_attendee_data(self, _attendees, append=True):
	for attendee in _attendees:
	found = False

	for candidate in self._attendees:
	if candidate.get_email() == attendee.get_email():
	candidate.copy_from(attendee)
	found = True
	break

	if not found and append:
	self._attendees.append(attendee)

	self.event.setAttendees(self._attendees)

	def set_classification(self, classification):
	if classification in self.classification_map.keys():
	self.event.setClassification(self.classification_map[classification])
	elif classification in self.classification_map.values():
	self.event.setClassification(status)
	else:
	raise ValueError, _("Invalid classification %r") % (classification)

	def set_created(self, _datetime=None):
	if _datetime == None:
	_datetime = datetime.datetime.utcnow()

	self.event.setCreated(xmlutils.to_cdatetime(_datetime, False, True))

	def set_description(self, description):
	self.event.setDescription(ustr(description))

	def set_comment(self, comment):
	if hasattr(self.event, 'setComment'):
	self.event.setComment(ustr(comment))

	def set_dtstamp(self, _datetime):
	self.event.setLastModified(xmlutils.to_cdatetime(_datetime, False, True))

	def set_end(self, _datetime):
	valid_datetime = False
	if isinstance(_datetime, datetime.date):
	valid_datetime = True

	if isinstance(_datetime, datetime.datetime):
	# If no timezone information is passed on, make it UTC
	if _datetime.tzinfo == None:
	_datetime = _datetime.replace(tzinfo=pytz.utc)

	valid_datetime = True

	if not valid_datetime:
	raise InvalidEventDateError, _("Event end needs datetime.date or datetime.datetime instance, got %r") % (type(_datetime))

	self.event.setEnd(xmlutils.to_cdatetime(_datetime, True))

	def set_exception_dates(self, _datetimes):
	for _datetime in _datetimes:
	self.add_exception_date(_datetime)

	def add_custom_property(self, name, value):
	if not name.upper().startswith('X-'):
	raise ValueError, _("Invalid custom property name %r") % (name)

	props = self.event.customProperties()
	props.append(kolabformat.CustomProperty(name.upper(), value))
	self.event.setCustomProperties(props)

	def set_from_ical(self, attr, value):
	attr = attr.replace('-', '')
	ical_setter = 'set_ical_' + attr
	default_setter = 'set_' + attr
	params = value.params if hasattr(value, 'params') else {}

	if isinstance(value, icalendar.vDDDTypes) and hasattr(value, 'dt'):
	value = value.dt

	if attr == "categories":
	self.add_category(value)
	elif attr == "class":
	self.set_classification(value)
	elif attr == "recurrenceid":
	self.set_ical_recurrenceid(value, params)
	elif hasattr(self, ical_setter):
	getattr(self, ical_setter)(value)
	elif hasattr(self, default_setter):
	getattr(self, default_setter)(value)

	def set_ical_attendee(self, _attendee):
	if isinstance(_attendee, basestring):
	_attendee = [_attendee]

	if isinstance(_attendee, list):
	for attendee in _attendee:
	address = str(attendee).split(':')[-1]

	if hasattr(attendee, 'params'):
	params = attendee.params
	else:
	params = {}

	if params.has_key('CN'):
	name = ustr(params['CN'])
	else:
	name = None

	if params.has_key('ROLE'):
	role = params['ROLE']
	else:
	role = None

	if params.has_key('PARTSTAT'):
	partstat = params['PARTSTAT']
	else:
	partstat = None

	if params.has_key('RSVP'):
	rsvp = params['RSVP']
	else:
	rsvp = None

	if params.has_key('CUTYPE'):
	cutype = params['CUTYPE']
	else:
	cutype = kolabformat.CutypeIndividual

	att = self.add_attendee(address, name=name, rsvp=rsvp, role=role, participant_status=partstat, cutype=cutype, params=params)

	def set_ical_dtend(self, dtend):
	# shift end by one day on all-day events
	if not hasattr(dtend, 'hour'):
	dtend = dtend - datetime.timedelta(days=1)
	self.set_end(dtend)

	def set_ical_dtstamp(self, dtstamp):
	self.set_dtstamp(dtstamp)

	def set_ical_dtstart(self, dtstart):
	self.set_start(dtstart)

	def set_ical_lastmodified(self, lastmod):
	self.set_lastmodified(lastmod)

	def set_ical_duration(self, value):
	if hasattr(value, 'dt'):
	value = value.dt

	duration = kolabformat.Duration(value.days, 0, 0, value.seconds, False)
	self.event.setDuration(duration)

	def set_ical_organizer(self, organizer):
	address = str(organizer).split(':')[-1]

	cn = None

	if hasattr(organizer, 'params'):
	params = organizer.params
	else:
	params = {}

	if params.has_key('CN'):
	cn = ustr(params['CN'])

	self.set_organizer(str(address), name=cn)

	def set_ical_priority(self, priority):
	self.set_priority(priority)

	def set_ical_sequence(self, sequence):
	self.set_sequence(sequence)

	def set_ical_summary(self, summary):
	self.set_summary(ustr(summary))

	def set_ical_uid(self, uid):
	self.set_uid(str(uid))

	def set_ical_recurrenceid(self, value, params):
	try:
	self.thisandfuture = params.get('RANGE', '') == 'THISANDFUTURE'
	self.set_recurrence_id(value, self.thisandfuture)
	except InvalidEventDateError, e:
	pass

	def set_lastmodified(self, _datetime=None):
	valid_datetime = False
	if isinstance(_datetime, datetime.date):
	valid_datetime = True

	if isinstance(_datetime, datetime.datetime):
	valid_datetime = True

	if _datetime == None:
	valid_datetime = True
	_datetime = datetime.datetime.utcnow()

	if not valid_datetime:
	raise InvalidEventDateError, _("Event last-modified needs datetime.date or datetime.datetime instance, got %r") % (type(_datetime))

	self.event.setLastModified(xmlutils.to_cdatetime(_datetime, False, True))

	def set_location(self, location):
	self.event.setLocation(ustr(location))

	def set_organizer(self, email, name=None):
	contactreference = ContactReference(email)
	if not name == None:
	contactreference.setName(name)

	self.event.setOrganizer(contactreference)

	def set_priority(self, priority):
	self.event.setPriority(priority)

	def set_sequence(self, sequence):
	self.event.setSequence(int(sequence))

	def set_url(self, url):
	self.event.setUrl(str(url))

	def set_recurrence(self, recurrence):
	self.event.setRecurrenceRule(recurrence)

	# reset eventcal instance
	if hasattr(self, 'eventcal'):
	del self.eventcal

	def set_start(self, _datetime):
	valid_datetime = False
	if isinstance(_datetime, datetime.date):
	valid_datetime = True

	if isinstance(_datetime, datetime.datetime):
	# If no timezone information is passed on, make it UTC
	if _datetime.tzinfo == None:
	_datetime = _datetime.replace(tzinfo=pytz.utc)

	valid_datetime = True

	if not valid_datetime:
	raise InvalidEventDateError, _("Event start needs datetime.date or datetime.datetime instance, got %r") % (type(_datetime))

	self.event.setStart(xmlutils.to_cdatetime(_datetime, True))

	def set_status(self, status):
	if status in self.status_map.keys():
	self.event.setStatus(self.status_map[status])
	elif status in self.status_map.values():
	self.event.setStatus(status)
	elif not status == kolabformat.StatusUndefined:
	raise InvalidEventStatusError, _("Invalid status set: %r") % (status)

	def set_summary(self, summary):
	self.event.setSummary(summary)

	def set_uid(self, uid):
	self.uid = uid
	self.event.setUid(str(uid))

	def set_recurrence_id(self, _datetime, _thisandfuture=None):
	valid_datetime = False
	if isinstance(_datetime, datetime.date):
	valid_datetime = True

	if isinstance(_datetime, datetime.datetime):
	# If no timezone information is passed on, use the one from event start
	if _datetime.tzinfo == None:
	_start = self.get_start()
	_datetime = _datetime.replace(tzinfo=_start.tzinfo)

	valid_datetime = True

	if not valid_datetime:
	raise InvalidEventDateError, _("Event recurrence-id needs datetime.datetime instance")

	if _thisandfuture is None:
	_thisandfuture = self.thisandfuture

	self.event.setRecurrenceID(xmlutils.to_cdatetime(_datetime), _thisandfuture)

	def set_transparency(self, transp):
	return self.event.setTransparency(transp)

	def __str__(self):
	event_xml = kolabformat.writeEvent(self.event)

	error = kolabformat.error()

	if error == None or not error:
	return event_xml
	else:
	raise EventIntegrityError, kolabformat.errorMessage()

	def to_dict(self):
	data = dict()

	for p, getter in self.properties_map.iteritems():
	val = None
	if hasattr(self, getter):
	val = getattr(self, getter)()
	elif hasattr(self.event, getter):
	val = getattr(self.event, getter)()

	if isinstance(val, kolabformat.cDateTime):
	val = xmlutils.from_cdatetime(val, True)
	elif isinstance(val, kolabformat.vectordatetime):
	val = [xmlutils.from_cdatetime(x, True) for x in val]
	elif isinstance(val, kolabformat.vectors):
	val = [str(x) for x in val]
	elif isinstance(val, kolabformat.vectorcs):
	for x in val:
	data[x.identifier] = x.value
	val = None
	elif isinstance(val, kolabformat.ContactReference):
	val = ContactReference(val).to_dict()
	elif isinstance(val, kolabformat.RecurrenceRule):
	val = RecurrenceRule(val).to_dict()
	elif isinstance(val, kolabformat.vectorattachment):
	val = [dict(fmttype=x.mimetype(), label=x.label(), uri=x.uri()) for x in val]
	elif isinstance(val, kolabformat.vectoralarm):
	val = [self._alarm_to_dict(x) for x in val]
	elif isinstance(val, list):
	val = [x.to_dict() for x in val if hasattr(x, 'to_dict')]

	if val is not None:
	data[p] = val

	return data

	def _alarm_to_dict(self, alarm):
	ret = dict(
	action=self._translate_value(alarm.type(), self.alarm_type_map),
	summary=alarm.summary(),
	description=alarm.description(),
	trigger=None
	)

	start = alarm.start()
	if start and start.isValid():
	ret['trigger'] = xmlutils.from_cdatetime(start, True)
	else:
	ret['trigger'] = dict(related=self._translate_value(alarm.relativeTo(), self.related_map))
	duration = alarm.relativeStart()
	if duration and duration.isValid():
	prefix = '-' if duration.isNegative() else '+'
	value = prefix + "P%dW%dDT%dH%dM%dS" % (
	duration.weeks(), duration.days(), duration.hours(), duration.minutes(), duration.seconds()
	)
	ret['trigger']['value'] = re.sub(r"T$", '', re.sub(r"0[WDHMS]", '', value))

	if alarm.type() == kolabformat.Alarm.EMailAlarm:
	ret['attendee'] = [ContactReference(a).to_dict() for a in alarm.attendees()]

	return ret

	def _translate_value(self, val, map):
	name_map = dict([(v, k) for (k, v) in map.iteritems()])
	return name_map[val] if name_map.has_key(val) else 'UNKNOWN'

	def to_message(self, creator=None):
	from email.MIMEMultipart import MIMEMultipart
	from email.MIMEBase import MIMEBase
	from email.MIMEText import MIMEText
	from email.Utils import COMMASPACE, formatdate

	msg = MIMEMultipart()
	organizer = self.get_organizer()
	email = organizer.email()
	name = organizer.name()

	if creator:
	msg['From'] = creator
	elif not name:
	msg['From'] = email
	else:
	msg['From'] = '"%s" <%s>' % (name, email)

	msg['To'] = ', '.join([x.__str__() for x in self.get_attendees()])
	msg['Date'] = formatdate(localtime=True)

	msg.add_header('X-Kolab-MIME-Version', '3.0')
	msg.add_header('X-Kolab-Type', 'application/x-vnd.kolab.' + self.type)

	text = utils.multiline_message("""
	This is a Kolab Groupware object. To view this object you
	will need an email client that understands the Kolab
	Groupware format. For a list of such email clients please
	visit http://www.kolab.org/
	""")

	msg.attach( MIMEText(text) )

	part = MIMEBase('application', "calendar+xml")
	part.set_charset('UTF-8')

	msg["Subject"] = self.get_uid()

	# extract attachment data into separate MIME parts
	vattach = self.event.attachments()
	i = 0
	for attach in vattach:
	if attach.uri():
	continue

	mimetype = attach.mimetype()
	(primary, seconday) = mimetype.split('/')
	name = attach.label()
	if not name:
	name = 'unknown.x'

	(basename, suffix) = path.splitext(name)
	t = datetime.datetime.now()
	cid = "%s.%s.%s%s" % (basename, time.mktime(t.timetuple()), t.microsecond + len(self._attachment_parts), suffix)

	p = MIMEBase(primary, seconday)
	p.add_header('Content-Disposition', 'attachment', filename=name)
	p.add_header('Content-Transfer-Encoding', 'base64')
	p.add_header('Content-ID', '<' + cid + '>')
	p.set_payload(base64.b64encode(attach.data()))

	self._attachment_parts.append(p)

	# modify attachment object
	attach.setData('', mimetype)
	attach.setUri('cid:' + cid, mimetype)
	vattach[i] = attach
	i += 1

	self.event.setAttachments(vattach)

	part.set_payload(str(self))

	part.add_header('Content-Disposition', 'attachment; filename="kolab.xml"')
	part.replace_header('Content-Transfer-Encoding', '8bit')

	msg.attach(part)

	# append attachment parts
	for p in self._attachment_parts:
	msg.attach(p)

	return msg

	def to_message_itip(self, from_address, method="REQUEST", participant_status="ACCEPTED", subject=None, message_text=None):
	from email.MIMEMultipart import MIMEMultipart
	from email.MIMEBase import MIMEBase
	from email.MIMEText import MIMEText
	from email.Utils import COMMASPACE, formatdate

	# encode unicode strings with quoted-printable
	from email import charset
	charset.add_charset('utf-8', charset.SHORTEST, charset.QP)

	msg = MIMEMultipart()

	msg_from = None
	attendees = None

	if method == "REPLY":
	# TODO: Make user friendly name <email>
	msg['To'] = self.get_organizer().email()

	attendees = self.get_attendees()
	reply_attendees = []

	# There's an exception here for delegation (partstat DELEGATED)
	for attendee in attendees:
	if attendee.get_email() == from_address:
	# Only the attendee is supposed to be listed in a reply
	attendee.set_participant_status(participant_status)
	attendee.set_rsvp(False)

	reply_attendees.append(attendee)

	name = attendee.get_name()
	email = attendee.get_email()

	if not name:
	msg_from = email
	else:
	msg_from = '"%s" <%s>' % (name, email)

	elif from_address in attendee.get_delegated_from(True):
	reply_attendees.append(attendee)

	# keep only replying (and delegated) attendee(s)
	self._attendees = reply_attendees
	self.event.setAttendees(self._attendees)

	if msg_from == None:
	organizer = self.get_organizer()
	email = organizer.email()
	name = organizer.name()
	if email == from_address:
	if not name:
	msg_from = email
	else:
	msg_from = '"%s" <%s>' % (name, email)

	elif method == "REQUEST":
	organizer = self.get_organizer()
	email = organizer.email()
	name = organizer.name()
	if not name:
	msg_from = email
	else:
	msg_from = '"%s" <%s>' % (name, email)

	if msg_from == None:
	if from_address == None:
	log.error(_("No sender specified"))
	else:
	msg_from = from_address

	msg['From'] = utils.str2unicode(msg_from)

	msg['Date'] = formatdate(localtime=True)

	if subject is None:
	subject = _("Invitation for %s was %s") % (self.get_summary(), participant_status_label(participant_status))

	msg['Subject'] = utils.str2unicode(subject)

	if message_text is None:
	message_text = _("""This is an automated response to one of your event requests.""")

	msg.attach(MIMEText(utils.stripped_message(message_text), _charset='utf-8'))

	part = MIMEBase('text', 'calendar', charset='UTF-8', method=method)
	del part['MIME-Version'] # mime parts don't need this

	part.set_payload(self.as_string_itip(method=method))

	part.add_header('Content-Disposition', 'attachment; filename="event.ics"')
	part.add_header('Content-Transfer-Encoding', '8bit')

	msg.attach(part)

	# restore the original list of attendees
	# attendees being reduced to the replying attendee above
	if attendees is not None:
	self._attendees = attendees
	self.event.setAttendees(self._attendees)

	return msg

	def is_recurring(self):
	return self.event.recurrenceRule().isValid()

	def to_event_cal(self):
	from kolab.calendaring import EventCal
	return EventCal(self.event)

	def get_next_occurence(self, _datetime):
	if not hasattr(self, 'eventcal'):
	self.eventcal = self.to_event_cal()

	next_cdatetime = self.eventcal.getNextOccurence(xmlutils.to_cdatetime(_datetime, True))
	next_datetime = xmlutils.from_cdatetime(next_cdatetime, True) if next_cdatetime is not None else None

	# cut infinite recurrence at a reasonable point
	if next_datetime and not self.get_last_occurrence() and next_datetime > xmlutils.to_dt(self._recurrence_end()):
	next_datetime = None

	# next_datetime is always a cdatetime, convert to date if necessary
	if next_datetime and not isinstance(self.get_start(), datetime.datetime):
	next_datetime = datetime.date(next_datetime.year, next_datetime.month, next_datetime.day)

	return next_datetime

	def get_occurence_end_date(self, datetime):
	if not datetime:
	return None

	if not hasattr(self, 'eventcal'):
	return None

	end_cdatetime = self.eventcal.getOccurenceEndDate(xmlutils.to_cdatetime(datetime, True))
	return xmlutils.from_cdatetime(end_cdatetime, True) if end_cdatetime is not None else None

	def get_last_occurrence(self, force=False):
	if not hasattr(self, 'eventcal'):
	self.eventcal = self.to_event_cal()

	last = self.eventcal.getLastOccurrence()
	last_datetime = xmlutils.from_cdatetime(last, True) if last is not None else None

	# we're forced to return some date
	if last_datetime is None and force:
	last_datetime = self._recurrence_end()

	return last_datetime

	def get_next_instance(self, datetime):
	next_start = self.get_next_occurence(datetime)
	if next_start:
	instance = Event(from_string=str(self))
	instance.set_start(next_start)
	instance.event.setRecurrenceID(xmlutils.to_cdatetime(next_start), False)
	next_end = self.get_occurence_end_date(next_start)
	if next_end:
	instance.set_end(next_end)

	# unset recurrence rule and exceptions
	instance.set_recurrence(kolabformat.RecurrenceRule())
	instance.event.setExceptions(kolabformat.vectorevent())
	instance.event.setExceptionDates(kolabformat.vectordatetime())
	instance._exceptions = []
	instance._isexception = False

	# unset attachments list (only stored in main event)
	instance.event.setAttachments(kolabformat.vectorattachment())

	# copy data from matching exception
	# (give precedence to single occurrence exceptions over thisandfuture)
	for exception in self._exceptions:
	recurrence_id = exception.get_recurrence_id()
	if recurrence_id == next_start and (not exception.thisandfuture or not instance._isexception):
	instance = exception
	instance._isexception = True
	if not exception.thisandfuture:
	break
	elif exception.thisandfuture and next_start > recurrence_id:
	# TODO: merge exception properties over this instance + adjust start/end with the according offset
	pass

	return instance

	return None

	def get_instance(self, _datetime):
	# If no timezone information is given, use the one from event start
	if isinstance(_datetime, datetime.datetime) and _datetime.tzinfo == None:
	_start = self.get_start()
	if hasattr(_start, 'tzinfo'):
	_datetime = _datetime.replace(tzinfo=_start.tzinfo)

	if self.is_recurring():
	instance = self.get_next_instance(_datetime - datetime.timedelta(days=1))
	while instance:
	recurrence_id = instance.get_recurrence_id()
	if type(recurrence_id) == type(_datetime) and recurrence_id <= _datetime:
	if xmlutils.dates_equal(recurrence_id, _datetime):
	return instance
	instance = self.get_next_instance(instance.get_start())
	else:
	break

	elif self.has_exceptions():
	for exception in self._exceptions:
	recurrence_id = exception.get_recurrence_id()
	if type(recurrence_id) == type(_datetime) and xmlutils.dates_equal(recurrence_id, _datetime):
	return exception

	if self.get_recurrence_id():
	recurrence_id = self.get_recurrence_id()
	if type(recurrence_id) == type(_datetime) and xmlutils.dates_equal(recurrence_id, _datetime):
	return self

	return None

	def _recurrence_end(self):
	"""
	Determine a reasonable end date for infinitely recurring events
	"""
	rrule = self.event.recurrenceRule()
	if rrule.isValid() and rrule.count() < 0 and not rrule.end().isValid():
	now = datetime.datetime.now()
	switch = {
	kolabformat.RecurrenceRule.Yearly: 100,
	kolabformat.RecurrenceRule.Monthly: 20
	}
	intvl = switch[rrule.frequency()] if rrule.frequency() in switch else 10
	return self.get_start().replace(year=now.year + intvl)

	return xmlutils.from_cdatetime(rrule.end(), True)


	class EventIntegrityError(Exception):
	def __init__(self, message):
	Exception.__init__(self, message)

	class InvalidEventDateError(Exception):
	def __init__(self, message):
	Exception.__init__(self, message)

	class InvalidEventStatusError(Exception):
	def __init__(self, message):
	Exception.__init__(self, message)

	diff --git a/tests/unit/test-003-event.py b/tests/unit/test-003-event.py
	index 5798101..f039ca1 100644
	--- a/tests/unit/test-003-event.py
	+++ b/tests/unit/test-003-event.py
	@@ -1,963 +1,971 @@
	import re
	import datetime
	import pytz
	import sys
	import unittest
	import kolabformat
	import icalendar
	import pykolab

	from pykolab.xml import Attendee
	from pykolab.xml import Event
	from pykolab.xml import RecurrenceRule
	from pykolab.xml import EventIntegrityError
	from pykolab.xml import InvalidAttendeeParticipantStatusError
	from pykolab.xml import InvalidEventDateError
	from pykolab.xml import event_from_ical
	from pykolab.xml import event_from_string
	from pykolab.xml import event_from_message
	from pykolab.xml import compute_diff
	from pykolab.xml import property_to_string
	from collections import OrderedDict

	ical_event = """
	BEGIN:VEVENT
	UID:7a35527d-f783-4b58-b404-b1389bd2fc57
	DTSTAMP;VALUE=DATE-TIME:20140407T122311Z
	CREATED;VALUE=DATE-TIME:20140407T122245Z
	LAST-MODIFIED;VALUE=DATE-TIME:20140407T122311Z
	DTSTART;TZID=Europe/Zurich;VALUE=DATE-TIME:20140523T110000
	DURATION:PT1H30M0S
	RRULE:FREQ=WEEKLY;INTERVAL=1;COUNT=10
	EXDATE;TZID=Europe/Zurich;VALUE=DATE-TIME:20140530T110000
	EXDATE;TZID=Europe/Zurich;VALUE=DATE-TIME:20140620T110000
	SUMMARY:Summary
	LOCATION:Location
	DESCRIPTION:Description\\n2 lines
	CATEGORIES:Personal
	TRANSP:OPAQUE
	PRIORITY:2
	SEQUENCE:2
	CLASS:PUBLIC
	ATTENDEE;CN="Manager, Jane";PARTSTAT=NEEDS-ACTION;ROLE=REQ-PARTICIPANT;CUTYP
	E=INDIVIDUAL;RSVP=TRUE:mailto:jane.manager@example.org
	ATTENDEE;CUTYPE=RESOURCE;PARTSTAT=NEEDS-ACTION;ROLE=OPT-PARTICIPANT;RSVP=FA
	LSE:MAILTO:max@imum.com
	ORGANIZER;CN=Doe\, John:mailto:john.doe@example.org
	URL:http://somelink.com/foo
	ATTACH;VALUE=BINARY;ENCODING=BASE64;FMTTYPE=image/png;X-LABEL=silhouette.pn
	g:iVBORw0KGgoAAAANSUhEUgAAAC4AAAAuCAIAAADY27xgAAAAGXRFWHRTb2Z0d2FyZQBBZG9i
	ZSBJbWFnZVJlYWR5ccllPAAAAsRJREFUeNrsmeluKjEMhTswrAWB4P3fECGx79CjsTDmOKRkpF
	xxpfoHSmchX7ybFrfb7eszpPH1MfKH8ofyH6KUtd/c7/en0wmfWBdF0Wq1Op1Ou91uNGoer6iX
	V1ar1Xa7xUJeB4qsr9frdyVlWWZH2VZyPp+xPXHIAoK70+m02+1m9JXj8bhcLi+Xi3J4xUCazS
	bUltdtd7ud7ldUIhC3u+iTwF0sFhlR4Kds4LtRZK1w4te5UM6V6JaqhqC3CQ28OAsKggJfbZ3U
	eozCqZ4koHIZCGmD9ivuos9YONFirmxrI0UNZG1kbZeUXdJQNJNa91RlqMn0ekYUMZDup6dXVV
	m+1OSZhqLx6bVCELJGSsyFQtFrF15JGYMZgoxubWGDSDVhvTipDKWhoBOIpFobxtlbJ0Gh0/tg
	lgXal4woUHi/36fQoBQncDAlupa8DeVwOPRe4lUyGAwQ+dl7W+xBXkJBhEUqR32UoJfYIKrR4d
	ZBgcdIRqfEqn+mekl9FNRbSTA249la3ev1/kXHD47ZbEYR5L9kMplkd9vNZqMFyIYxxfN8Pk8q
	QGlagT5QDtfrNYUMlWW9LiGNPPSmC/+OgpK2r4RO6dOatZd+4gAAemdIi6Fg9EKLD4vASWkzv3
	ew06NSCiA40CumAIoaIrhrcAwjF7aDo58gUchgNV+0n1BAcDgcoAZrXV9mI4qkhtK6FJFhi9Fo
	ZKPsgQI1ACJieH/Kd570t+xFoIzHYzl5Q40CFGrSqGuks3qmYIKJfIl0nPKLxAMFw7Dv1+2QYf
	vFSOBQubbOFDSc7ZcfWvHv6DzhOzT6IeOVPuz8Roex0f6EgsE/2IL4qdg7hIXz7/pBie7q1uWr
	tp66xrif0l1KwUE4P7Y9Gci/ZgtNRFX+Rw06Q2RigsjuDc3urwKHxuNITaaxyD9mT2WvSDAXn/
	Pvhh8BBgBjyfPSGbSYcwAAAABJRU5ErkJggg==
	ATTACH;VALUE=BINARY;ENCODING=BASE64;FMTTYPE=text/plain;X-LABEL=text.txt:VGh
	pcyBpcyBhIHRleHQgZmlsZQo=
	BEGIN:VALARM
	ACTION:DISPLAY
	TRIGGER:-PT30M
	END:VALARM
	END:VEVENT
	"""

	ical_exception = """
	BEGIN:VEVENT
	UID:7a35527d-f783-4b58-b404-b1389bd2fc57
	DTSTAMP;VALUE=DATE-TIME:20140407T122311Z
	CREATED;VALUE=DATE-TIME:20140407T122245Z
	LAST-MODIFIED;VALUE=DATE-TIME:20140407T122311Z
	RECURRENCE-ID;TZID=Europe/Zurich;RANGE=THISANDFUTURE:20140606T110000
	DTSTART;TZID=Europe/Zurich;VALUE=DATE-TIME:20140607T120000
	DTEND;TZID=Europe/Zurich;VALUE=DATE-TIME:20140607T143000
	SUMMARY:Exception
	CATEGORIES:Personal
	TRANSP:TRANSPARENT
	PRIORITY:2
	SEQUENCE:3
	STATUS:CANCELLED
	ORGANIZER;CN=Doe\, John:mailto:john.doe@example.org
	END:VEVENT
	"""

	xml_event = """
	<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
	<vcalendar>
	<properties>
	<prodid>
	<text>Libkolabxml-1.1</text>
	</prodid>
	<version>
	<text>2.0</text>
	</version>
	<x-kolab-version>
	<text>3.1.0</text>
	</x-kolab-version>
	</properties>
	<components>
	<vevent>
	<properties>
	<uid>
	<text>75c740bb-b3c6-442c-8021-ecbaeb0a025e</text>
	</uid>
	<created>
	<date-time>2014-07-07T01:28:23Z</date-time>
	</created>
	<dtstamp>
	<date-time>2014-07-07T01:28:23Z</date-time>
	</dtstamp>
	<sequence>
	<integer>1</integer>
	</sequence>
	<class>
	<text>PUBLIC</text>
	</class>
	<dtstart>
	<parameters>
	<tzid>
	<text>/kolab.org/Europe/London</text>
	</tzid>
	</parameters>
	<date-time>2014-08-13T10:00:00</date-time>
	</dtstart>
	<dtend>
	<parameters>
	<tzid><text>/kolab.org/Europe/London</text></tzid>
	</parameters>
	<date-time>2014-08-13T14:00:00</date-time>
	</dtend>
	<rrule>
	<recur>
	<freq>DAILY</freq>
	<until>
	<date>2015-07-25</date>
	</until>
	</recur>
	</rrule>
	<exdate>
	<parameters>
	<tzid>
	<text>/kolab.org/Europe/Berlin</text>
	</tzid>
	</parameters>
	<date>2014-07-19</date>
	<date>2014-07-26</date>
	<date>2014-07-12</date>
	<date>2014-07-13</date>
	<date>2014-07-20</date>
	<date>2014-07-27</date>
	<date>2014-07-05</date>
	<date>2014-07-06</date>
	</exdate>
	<summary>
	<text>test</text>
	</summary>
	<description>
	<text>test</text>
	</description>
	<priority>
	<integer>5</integer>
	</priority>
	<status>
	<text>CANCELLED</text>
	</status>
	<location>
	<text>Room 101</text>
	</location>
	<organizer>
	<parameters>
	<cn><text>Doe, John</text></cn>
	</parameters>
	<cal-address>mailto:%3Cjohn%40example.org%3E</cal-address>
	</organizer>
	<attendee>
	<parameters>
	<partstat><text>ACCEPTED</text></partstat>
	<role><text>REQ-PARTICIPANT</text></role>
	<rsvp><boolean>true</boolean></rsvp>
	<delegated-from><cal-address>mailto:%3Csomebody%40else.com%3E</cal-address></delegated-from>
	</parameters>
	<cal-address>mailto:%3Cjane%40example.org%3E</cal-address>
	</attendee>
	<attendee>
	<parameters>
	<partstat><text>DELEGATED</text></partstat>
	<role><text>NON-PARTICIPANT</text></role>
	<delegated-to><cal-address>mailto:%3Cjane%40example.org%3E</cal-address></delegated-to>
	</parameters>
	<cal-address>mailto:%3Csomebody%40else.com%3E</cal-address>
	</attendee>
	<attach>
	<parameters>
	<fmttype>
	<text>text/html</text>
	</fmttype>
	<x-label>
	<text>noname.1395223627.5555</text>
	</x-label>
	</parameters>
	<uri>cid:noname.1395223627.5555</uri>
	</attach>
	<x-custom>
	<identifier>X-MOZ-RECEIVED-DTSTAMP</identifier>
	<value>20140224T155612Z</value>
	</x-custom>
	<x-custom>
	<identifier>X-GWSHOW-AS</identifier>
	<value>BUSY</value>
	</x-custom>
	</properties>
	<components>
	<valarm>
	<properties>
	<action>
	<text>DISPLAY</text>
	</action>
	<description>
	<text>alarm 1</text>
	</description>
	<trigger>
	<parameters>
	<related>
	<text>START</text>
	</related>
	</parameters>
	<duration>-PT2H</duration>
	</trigger>
	</properties>
	</valarm>
	<valarm>
	<properties>
	<action>
	<text>EMAIL</text>
	</action>
	<summary>
	<text>test</text>
	</summary>
	<description>
	<text>alarm 2</text>
	</description>
	<attendee>
	<cal-address>mailto:%3Cjohn.doe%40example.org%3E</cal-address>
	</attendee>
	<trigger>
	<parameters>
	<related>
	<text>START</text>
	</related>
	</parameters>
	<duration>-P1D</duration>
	</trigger>
	</properties>
	</valarm>
	</components>
	</vevent>
	<vevent>
	<properties>
	<uid>
	<text>75c740bb-b3c6-442c-8021-ecbaeb0a025e</text>
	</uid>
	<created>
	<date-time>2014-07-07T01:28:23Z</date-time>
	</created>
	<dtstamp>
	<date-time>2014-07-07T01:28:23Z</date-time>
	</dtstamp>
	<sequence>
	<integer>2</integer>
	</sequence>
	<class>
	<text>PUBLIC</text>
	</class>
	<dtstart>
	<parameters>
	<tzid>
	<text>/kolab.org/Europe/London</text>
	</tzid>
	</parameters>
	<date-time>2014-08-16T13:00:00</date-time>
	</dtstart>
	<dtend>
	<parameters>
	<tzid><text>/kolab.org/Europe/London</text></tzid>
	</parameters>
	<date-time>2014-08-16T16:00:00</date-time>
	</dtend>
	<recurrence-id>
	<parameters>
	<tzid>
	<text>/kolab.org/Europe/London</text>
	</tzid>
	<range>
	<text>THISANDFUTURE</text>
	</range>
	</parameters>
	<date-time>2014-08-16T10:00:00</date-time>
	</recurrence-id>
	<summary>
	<text>exception</text>
	</summary>
	<description>
	<text>exception</text>
	</description>
	<location>
	<text>Room 101</text>
	</location>
	<organizer>
	<parameters>
	<cn><text>Doe, John</text></cn>
	</parameters>
	<cal-address>mailto:%3Cjohn%40example.org%3E</cal-address>
	</organizer>
	<attendee>
	<parameters>
	<partstat><text>DECLINED</text></partstat>
	<role><text>REQ-PARTICIPANT</text></role>
	</parameters>
	<cal-address>mailto:%3Cjane%40example.org%3E</cal-address>
	</attendee>
	</properties>
	</vevent>
	</components>
	</vcalendar>
	</icalendar>
	"""

	class TestEventXML(unittest.TestCase):
	event = Event()

	@classmethod
	def setUp(self):
	""" Compatibility for twisted.trial.unittest
	"""
	self.setup_class()

	@classmethod
	def setup_class(self, args, *kw):
	# set language to default
	pykolab.translate.setUserLanguage('en_US')

	def assertIsInstance(self, _value, _type):
	if hasattr(unittest.TestCase, 'assertIsInstance'):
	return unittest.TestCase.assertIsInstance(self, _value, _type)
	else:
	if (type(_value)) == _type:
	return True
	else:
	raise AssertionError, "%s != %s" % (type(_value), _type)

	def test_000_no_start_date(self):
	self.assertRaises(EventIntegrityError, self.event.__str__)

	def test_001_minimal(self):
	self.event.set_start(datetime.datetime.now(pytz.timezone("Europe/London")))
	self.assertIsInstance(self.event.get_start(), datetime.datetime)
	self.assertIsInstance(self.event.__str__(), str)

	def test_002_attendees_list(self):
	self.assertIsInstance(self.event.get_attendees(), list)

	def test_003_attendees_no_default(self):
	self.assertEqual(len(self.event.get_attendees()), 0)

	def test_004_attendee_add(self):
	self.event.add_attendee("john@doe.org")
	self.assertIsInstance(self.event.get_attendees(), list)
	self.assertEqual(len(self.event.get_attendees()), 1)

	def test_005_attendee_add_name_and_props(self):
	self.event.add_attendee("jane@doe.org", "Doe, Jane", role="OPT-PARTICIPANT", cutype="RESOURCE")
	self.assertIsInstance(self.event.get_attendees(), list)
	self.assertEqual(len(self.event.get_attendees()), 2)

	def test_006_get_attendees(self):
	self.assertEqual([x.get_email() for x in self.event.get_attendees()], ["john@doe.org", "jane@doe.org"])

	def test_007_get_attendee_by_email(self):
	self.assertIsInstance(self.event.get_attendee_by_email("jane@doe.org"), Attendee)
	self.assertIsInstance(self.event.get_attendee("jane@doe.org"), Attendee)

	def test_007_get_attendee_props(self):
	self.assertEqual(self.event.get_attendee("jane@doe.org").get_cutype(), kolabformat.CutypeResource)
	self.assertEqual(self.event.get_attendee("jane@doe.org").get_role(), kolabformat.Optional)

	def test_007_get_nonexistent_attendee_by_email(self):
	self.assertRaises(ValueError, self.event.get_attendee_by_email, "nosuchattendee@invalid.domain")
	self.assertRaises(ValueError, self.event.get_attendee, "nosuchattendee@invalid.domain")

	def test_008_get_attendee_by_name(self):
	self.assertIsInstance(self.event.get_attendee_by_name("Doe, Jane"), Attendee)
	self.assertIsInstance(self.event.get_attendee("Doe, Jane"), Attendee)

	def test_008_get_nonexistent_attendee_by_name(self):
	self.assertRaises(ValueError, self.event.get_attendee_by_name, "Houdini, Harry")
	self.assertRaises(ValueError, self.event.get_attendee, "Houdini, Harry")

	def test_009_invalid_participant_status(self):
	self.assertRaises(InvalidAttendeeParticipantStatusError, self.event.set_attendee_participant_status, "jane@doe.org", "INVALID")

	def test_009_update_attendees(self):
	jane = self.event.get_attendee("jane@doe.org")
	jane.set_name("Jane (GI) Doe")
	self.event.update_attendees([jane])
	self.assertEqual(len(self.event.get_attendees()), 2)
	self.assertEqual(self.event.get_attendee("jane@doe.org").get_name(), "Jane (GI) Doe")

	def test_010_datetime_from_string(self):
	self.assertRaises(InvalidEventDateError, self.event.set_start, "2012-05-23 11:58:00")

	def test_011_attendee_equality(self):
	self.assertEqual(self.event.get_attendee("jane@doe.org").get_email(), "jane@doe.org")

	def test_012_delegate_new_attendee(self):
	self.event.delegate("jane@doe.org", "max@imum.com")

	def test_013_delegatee_is_now_attendee(self):
	delegatee = self.event.get_attendee("max@imum.com")
	self.assertIsInstance(delegatee, Attendee)
	self.assertEqual(delegatee.get_role(), kolabformat.Optional)
	self.assertEqual(delegatee.get_cutype(), kolabformat.CutypeResource)

	def test_014_delegate_attendee_adds(self):
	self.assertEqual(len(self.event.get_attendee("jane@doe.org").get_delegated_to()), 1)
	self.event.delegate("jane@doe.org", "john@doe.org")
	self.assertEqual(len(self.event.get_attendee("jane@doe.org").get_delegated_to()), 2)

	def test_015_timezone(self):
	_tz = self.event.get_start()
	self.assertIsInstance(_tz.tzinfo, datetime.tzinfo)

	def test_016_start_with_timezone(self):
	_start = datetime.datetime(2012, 05, 23, 11, 58, 00, tzinfo=pytz.timezone("Europe/Zurich"))
	_start_utc = _start.astimezone(pytz.utc)
	self.assertEqual(_start.__str__(), "2012-05-23 11:58:00+01:00")
	self.assertEqual(_start_utc.__str__(), "2012-05-23 10:58:00+00:00")
	self.event.set_start(_start)
	self.assertIsInstance(_start.tzinfo, datetime.tzinfo)
	self.assertEqual(_start.tzinfo, pytz.timezone("Europe/Zurich"))

	def test_017_allday_without_timezone(self):
	_start = datetime.date(2012, 05, 23)
	self.assertEqual(_start.__str__(), "2012-05-23")
	self.event.set_start(_start)
	self.assertEqual(hasattr(_start,'tzinfo'), False)
	self.assertEqual(self.event.get_start().__str__(), "2012-05-23")

	def test_018_load_from_ical(self):
	ical_str = """BEGIN:VCALENDAR
	VERSION:2.0
	PRODID:-//Roundcube//Roundcube libcalendaring 1.1-git//Sabre//Sabre VObject
	2.1.3//EN
	CALSCALE:GREGORIAN
	METHOD:REQUEST
	""" + ical_event + ical_exception + "END:VCALENDAR"

	ical = icalendar.Calendar.from_ical(ical_str)
	event = event_from_ical(ical.walk('VEVENT')[0], ical_str)

	self.assertEqual(event.get_location(), "Location")
	self.assertEqual(str(event.get_lastmodified()), "2014-04-07 12:23:11+00:00")
	self.assertEqual(event.get_description(), "Description\n2 lines")
	self.assertEqual(event.get_url(), "http://somelink.com/foo")
	self.assertEqual(event.get_transparency(), False)
	self.assertEqual(event.get_categories(), ["Personal"])
	self.assertEqual(event.get_priority(), '2')
	self.assertEqual(event.get_classification(), kolabformat.ClassPublic)
	self.assertEqual(event.get_attendee_by_email("max@imum.com").get_cutype(), kolabformat.CutypeResource)
	self.assertEqual(event.get_sequence(), 2)
	self.assertTrue(event.is_recurring())
	self.assertIsInstance(event.get_duration(), datetime.timedelta)
	self.assertIsInstance(event.get_end(), datetime.datetime)
	self.assertEqual(str(event.get_end()), "2014-05-23 12:30:00+02:00")
	self.assertEqual(len(event.get_exception_dates()), 2)
	self.assertIsInstance(event.get_exception_dates()[0], datetime.datetime)
	self.assertEqual(len(event.get_alarms()), 1)
	self.assertEqual(len(event.get_attachments()), 2)
	self.assertEqual(len(event.get_exceptions()), 1)

	exception = event.get_exceptions()[0]
	self.assertIsInstance(exception.get_recurrence_id(), datetime.datetime)
	# self.assertEqual(exception.thisandfuture, True)
	self.assertEqual(str(exception.get_start()), "2014-06-07 12:00:00+02:00")

	def test_018_ical_to_message(self):
	event = event_from_ical(ical_event)
	message = event.to_message()

	self.assertTrue(message.is_multipart())
	self.assertEqual(message['Subject'], event.uid)
	self.assertEqual(message['X-Kolab-Type'], 'application/x-vnd.kolab.event')

	parts = [p for p in message.walk()]
	attachments = event.get_attachments();

	self.assertEqual(len(parts), 5)
	self.assertEqual(parts[1].get_content_type(), 'text/plain')
	self.assertEqual(parts[2].get_content_type(), 'application/calendar+xml')
	self.assertEqual(parts[3].get_content_type(), 'image/png')
	self.assertEqual(parts[4].get_content_type(), 'text/plain')
	self.assertEqual(parts[2]['Content-ID'], None)
	self.assertEqual(parts[3]['Content-ID'].strip('<>'), attachments[0].uri()[4:])
	self.assertEqual(parts[4]['Content-ID'].strip('<>'), attachments[1].uri()[4:])

	def test_018_ical_allday_events(self):
	ical = """BEGIN:VEVENT
	UID:ffffffff-f783-4b58-b404-b1389bd2ffff
	DTSTAMP;VALUE=DATE-TIME:20140407T122311Z
	CREATED;VALUE=DATE-TIME:20140407T122245Z
	DTSTART;VALUE=DATE:20140823
	DTEND;VALUE=DATE:20140824
	SUMMARY:All day
	DESCRIPTION:One single day
	TRANSP:OPAQUE
	CLASS:PUBLIC
	END:VEVENT
	"""
	event = event_from_ical(ical)
	self.assertEqual(str(event.get_start()), "2014-08-23")
	self.assertEqual(str(event.get_end()), "2014-08-23")
	self.assertEqual(str(event.get_ical_dtend()), "2014-08-24")
	self.assertTrue(re.match('.<dtend>\s<date>2014-08-23</date>', str(event), re.DOTALL))

	def test_019_as_string_itip(self):
	self.event.set_summary("test")
	self.event.set_start(datetime.datetime(2014, 05, 23, 11, 00, 00, tzinfo=pytz.timezone("Europe/London")))
	self.event.set_end(datetime.datetime(2014, 05, 23, 12, 30, 00, tzinfo=pytz.timezone("Europe/London")))
	self.event.set_sequence(3)
	self.event.set_classification('CONFIDENTIAL')
	self.event.add_custom_property('X-Custom', 'check')
	self.event.set_recurrence_id(datetime.datetime(2014, 05, 23, 11, 0, 0), True)

	rrule = RecurrenceRule()
	rrule.set_frequency(kolabformat.RecurrenceRule.Weekly)
	rrule.set_byday(['2WE','-1SU'])
	rrule.setBymonth([2])
	rrule.set_count(10)
	rrule.set_until(datetime.datetime(2014,7,23, 11,0,0, tzinfo=pytz.utc))
	self.event.set_recurrence(rrule);

	ical = icalendar.Calendar.from_ical(self.event.as_string_itip())
	event = ical.walk('VEVENT')[0]

	self.assertEqual(event['uid'], self.event.get_uid())
	self.assertEqual(event['summary'], "test")
	self.assertEqual(event['sequence'], 3)
	self.assertEqual(event['X-CUSTOM'], "check")
	self.assertIsInstance(event['dtstamp'].dt, datetime.datetime)
	self.assertEqual(event['class'], "CONFIDENTIAL")
	self.assertIsInstance(event['recurrence-id'].dt, datetime.datetime)
	self.assertEqual(event['recurrence-id'].params.get('RANGE'), 'THISANDFUTURE')

	self.assertTrue(event.has_key('rrule'))
	self.assertEqual(event['rrule']['FREQ'][0], 'WEEKLY')
	self.assertEqual(event['rrule']['INTERVAL'][0], 1)
	self.assertEqual(event['rrule']['COUNT'][0], 10)
	self.assertEqual(event['rrule']['BYMONTH'][0], 2)
	self.assertEqual(event['rrule']['BYDAY'], ['2WE','-1SU'])
	self.assertIsInstance(event['rrule']['UNTIL'][0], datetime.datetime)

	def test_019_to_message_itip(self):
	self.event = Event()
	self.event.set_summary("test")
	self.event.set_start(datetime.datetime(2014, 05, 23, 11, 00, 00, tzinfo=pytz.timezone("Europe/London")))
	self.event.set_end(datetime.datetime(2014, 05, 23, 12, 30, 00, tzinfo=pytz.timezone("Europe/London")))
	self.event.set_organizer("me@kolab.org")
	self.event.add_attendee("john@doe.org")
	self.event.add_attendee("jane@doe.org")

	message = self.event.to_message_itip("john@doe.org", method="REPLY", participant_status="ACCEPTED")
	itip_event = None
	for part in message.walk():
	if part.get_content_type() == "text/calendar":
	ical = icalendar.Calendar.from_ical(part.get_payload(decode=True))
	itip_event = ical.walk('VEVENT')[0]
	break

	self.assertEqual(itip_event['uid'], self.event.get_uid())
	self.assertEqual(itip_event['attendee'].lower(), 'mailto:john@doe.org')

	# delegate jane => jack
	self.event.delegate("jane@doe.org", "jack@ripper.com", "Jack")

	message = self.event.to_message_itip("jane@doe.org", method="REPLY", participant_status="DELEGATED")
	itip_event = None
	for part in message.walk():
	if part.get_content_type() == "text/calendar":
	ical = icalendar.Calendar.from_ical(part.get_payload(decode=True))
	itip_event = ical.walk('VEVENT')[0]
	break

	self.assertEqual(len(itip_event['attendee']), 2)
	self.assertEqual(str(itip_event['attendee'][0]).lower(), 'mailto:jane@doe.org')
	self.assertEqual(str(itip_event['attendee'][1]).lower(), 'mailto:jack@ripper.com')
	self.assertEqual(itip_event['attendee'][0].params['delegated-to'], 'jack@ripper.com')
	self.assertEqual(itip_event['attendee'][1].params['delegated-from'], 'jane@doe.org')


	def test_020_calendaring_recurrence(self):
	rrule = kolabformat.RecurrenceRule()
	rrule.setFrequency(kolabformat.RecurrenceRule.Monthly)
	rrule.setCount(10)

	self.event = Event()
	self.event.set_recurrence(rrule);

	_start = datetime.datetime(2014, 5, 1, 11, 30, 00, tzinfo=pytz.timezone("Europe/London"))
	self.event.set_start(_start)
	self.event.set_end(_start + datetime.timedelta(hours=2))

	self.assertTrue(self.event.is_recurring())

	next_date = self.event.get_next_occurence(_start)
	self.assertIsInstance(next_date, datetime.datetime)
	self.assertEqual(next_date.month, 6)
	self.assertEqual(next_date.day, 1)

	end_date = self.event.get_occurence_end_date(next_date)
	self.assertIsInstance(end_date, datetime.datetime)
	self.assertEqual(end_date.month, 6)
	self.assertEqual(end_date.hour, 13)

	self.assertEqual(self.event.get_next_occurence(next_date).month, 7)

	last_date = self.event.get_last_occurrence()
	self.assertIsInstance(last_date, datetime.datetime)
	self.assertEqual(last_date.year, 2015)
	self.assertEqual(last_date.month, 2)

	self.assertEqual(self.event.get_next_occurence(last_date), None)

	# check infinite recurrence
	rrule = kolabformat.RecurrenceRule()
	rrule.setFrequency(kolabformat.RecurrenceRule.Monthly)
	self.event.set_recurrence(rrule);

	self.assertEqual(self.event.get_last_occurrence(), None)
	self.assertIsInstance(self.event.get_last_occurrence(force=True), datetime.datetime)

	# check get_next_instance() which returns a clone of the base event
	next_instance = self.event.get_next_instance(next_date)
	self.assertIsInstance(next_instance, Event)
	self.assertIsInstance(next_instance.get_recurrence_id(), datetime.datetime)
	self.assertEqual(self.event.get_summary(), next_instance.get_summary())
	self.assertEqual(next_instance.get_start().month, 7)
	self.assertFalse(next_instance.is_recurring())

	# check get_next_occurence() with an infinitely recurring all-day event
	rrule = kolabformat.RecurrenceRule()
	rrule.setFrequency(kolabformat.RecurrenceRule.Yearly)
	self.event.set_recurrence(rrule);

	self.event.set_start(datetime.date(2014, 5, 1))
	self.event.set_end(datetime.date(2014, 5, 1))
	next_date = self.event.get_next_occurence(datetime.date(2015, 1, 1))
	self.assertIsInstance(next_date, datetime.date)
	self.assertEqual(next_date.year, 2015)
	self.assertEqual(next_date.month, 5)

	def test_021_calendaring_no_recurrence(self):
	_start = datetime.datetime(2014, 2, 1, 14, 30, 00, tzinfo=pytz.timezone("Europe/London"))
	self.event = Event()
	self.event.set_start(_start)
	self.event.set_end(_start + datetime.timedelta(hours=2))

	self.assertEqual(self.event.get_next_occurence(_start), None)
	self.assertEqual(self.event.get_last_occurrence(), None)

	def test_021_add_exceptions(self):
	event = event_from_ical(ical_event)
	exception = event_from_ical(ical_exception)
	self.assertIsInstance(event, Event)
	self.assertIsInstance(exception, Event)

	event.add_exception(exception)
	self.assertEquals(len(event.get_exceptions()), 1)

	# second call shall replace the existing exception
	event.add_exception(exception)
	self.assertEquals(len(event.get_exceptions()), 1)

	# first real occurrence should be our exception
	occurrence = event.get_next_instance(event.get_start())
	self.assertEqual(occurrence.get_summary(), "Exception")

	def test_021_allday_recurrence(self):
	rrule = kolabformat.RecurrenceRule()
	rrule.setFrequency(kolabformat.RecurrenceRule.Daily)
	rrule.setCount(10)

	self.event = Event()
	self.event.set_summary('alldays')
	self.event.set_recurrence(rrule);

	_start = datetime.date(2015,1,1)
	self.event.set_start(_start)
	self.event.set_end(_start)

	exdate = datetime.date(2015,1,5)
	xmlexception = Event(from_string=str(self.event))
	xmlexception.set_start(exdate)
	xmlexception.set_end(exdate)
	xmlexception.set_recurrence_id(exdate, False)
	xmlexception.set_status('CANCELLED')
	self.event.add_exception(xmlexception)

	inst3 = self.event.get_instance(datetime.date(2015,1,3))
	self.assertEqual(inst3.get_start(), datetime.date(2015,1,3))

	inst5 = self.event.get_instance(exdate)
	self.assertEqual(inst5.get_status(True), 'CANCELLED')

	def test_021_ical_exceptions(self):
	self.event.set_summary("test")
	self.event.set_start(datetime.datetime(2014, 05, 23, 11, 00, 00, tzinfo=pytz.timezone("Europe/London")))
	self.event.set_end(datetime.datetime(2014, 05, 23, 12, 30, 00, tzinfo=pytz.timezone("Europe/London")))

	rrule = kolabformat.RecurrenceRule()
	rrule.setFrequency(kolabformat.RecurrenceRule.Weekly)
	self.event.set_recurrence(rrule)

	xmlexception = Event(from_string=str(self.event))
	xmlexception.set_start(datetime.datetime(2014, 05, 30, 14, 00, 00, tzinfo=pytz.timezone("Europe/London")))
	xmlexception.set_end(datetime.datetime(2014, 05, 30, 16, 00, 00, tzinfo=pytz.timezone("Europe/London")))
	xmlexception.set_recurrence_id(datetime.datetime(2014, 05, 30, 11, 0, 0), False)
	self.event.add_exception(xmlexception)

	ical = icalendar.Calendar.from_ical(self.event.as_string_itip())
	vevents = ical.walk('VEVENT')
	event = vevents[0]
	exception = vevents[1]

	self.assertEqual(event['uid'], self.event.get_uid())
	self.assertEqual(event['summary'], "test")

	self.assertEqual(exception['uid'], self.event.get_uid())
	self.assertIsInstance(exception['recurrence-id'].dt, datetime.datetime)
	self.assertEqual(exception['recurrence-id'].params.get('RANGE'), None)

	def test_021_single_instances(self):
	self.event = Event()
	self.event.set_summary('singles')

	_start = datetime.datetime(2015,3,1, 14,0,0, tzinfo=pytz.timezone("Europe/London"))
	self.event.set_start(_start)
	self.event.set_end(_start + datetime.timedelta(hours=1))
	self.event.set_recurrence_id(_start)

	_start2 = datetime.datetime(2015,3,5, 15,0,0, tzinfo=pytz.timezone("Europe/London"))
	xmlexception = Event(from_string=str(self.event))
	xmlexception.set_start(_start2)
	xmlexception.set_end(_start2 + datetime.timedelta(hours=1))
	xmlexception.set_summary('singles #2')
	xmlexception.set_recurrence_id(_start2)
	self.event.add_exception(xmlexception)

	self.assertEqual(self.event.has_exceptions(), True)

	first = self.event.get_instance(_start)
	self.assertIsInstance(first, Event)
	self.assertEqual(first.get_summary(), "singles")

	second = self.event.get_instance(_start2)
	self.assertIsInstance(second, Event)
	self.assertEqual(second.get_summary(), "singles #2")

	# update main instance
	first.set_status('CANCELLED')
	first.set_summary("singles #1")
	self.event.add_exception(first)

	event = event_from_string(str(self.event))
	self.assertEqual(self.event.has_exceptions(), True)
	self.assertEqual(event.get_status(True), 'CANCELLED')
	self.assertEqual(event.get_summary(), "singles #1")


	def test_022_load_from_xml(self):
	event = event_from_string(xml_event)
	self.assertEqual(event.uid, '75c740bb-b3c6-442c-8021-ecbaeb0a025e')
	self.assertEqual(event.get_attendee_by_email("jane@example.org").get_participant_status(), kolabformat.PartAccepted)
	self.assertEqual(len(event.get_attendee_by_email("jane@example.org").get_delegated_from()), 1)
	self.assertEqual(len(event.get_attendee_by_email("somebody@else.com").get_delegated_to()), 1)
	self.assertEqual(event.get_sequence(), 1)
	self.assertIsInstance(event.get_start(), datetime.datetime)
	self.assertEqual(str(event.get_start()), "2014-08-13 10:00:00+01:00")
	self.assertTrue(event.is_recurring())

	exceptions = event.get_exceptions()
	self.assertEqual(len(exceptions), 1)

	exception = exceptions[0]
	self.assertIsInstance(exception.get_recurrence_id(), datetime.datetime)
	self.assertTrue(exception.thisandfuture)
	self.assertEqual(str(exception.get_start()), "2014-08-16 13:00:00+01:00")
	self.assertEqual(exception.get_attendee_by_email("jane@example.org").get_participant_status(), kolabformat.PartDeclined)
	self.assertRaises(ValueError, exception.get_attendee, "somebody@else.com")

	# get instances with exception data
	occurrence = event.get_next_instance(exception.get_start() - datetime.timedelta(days=1))
	self.assertEqual(occurrence.get_start(), exception.get_start())
	self.assertEqual(occurrence.get_summary(), "exception")

	# find instance directly by date
	_recurrence_id = datetime.datetime(2014, 8, 15, 10, 0, 0)
	occurrence = event.get_instance(_recurrence_id)
	self.assertIsInstance(occurrence, Event)
	self.assertEqual(str(occurrence.get_recurrence_id()), "2014-08-15 10:00:00+01:00")

	+ # set invalid date-only recurrence-id
	+ exception.set_recurrence_id(datetime.date(2014,8,16))
	+ event.add_exception(exception)
	+
	+ inst = event.get_next_instance(_recurrence_id);
	+ self.assertIsInstance(inst, Event)
	+ self.assertIsInstance(inst.get_recurrence_id(), datetime.datetime)
	+
	def test_023_load_from_message(self):
	event = event_from_message(event_from_ical(ical_event).to_message())
	event.set_sequence(3)

	message = event.to_message()
	self.assertTrue(message.is_multipart())

	# check attachment MIME parts are kept
	parts = [p for p in message.walk()]
	attachments = event.get_attachments();

	self.assertEqual(len(parts), 5)
	self.assertEqual(parts[3].get_content_type(), 'image/png')
	self.assertEqual(parts[3]['Content-ID'].strip('<>'), attachments[0].uri()[4:])
	self.assertEqual(parts[4].get_content_type(), 'text/plain')
	self.assertEqual(parts[4]['Content-ID'].strip('<>'), attachments[1].uri()[4:])
	self.assertEqual(event.get_attachment_data(1), 'This is a text file')

	def test_024_bogus_itip_data(self):
	# DTSTAMP contains an invalid date/time value
	vevent = """BEGIN:VEVENT
	UID:626421779C777FBE9C9B85A80D04DDFA-A4BF5BBB9FEAA271
	DTSTAMP:20120713T1254140
	DTSTART;TZID=Europe/London:20120713T100000
	DTEND;TZID=Europe/London:20120713T110000
	SUMMARY:test
	DESCRIPTION:test
	ORGANIZER;CN="Doe, John":mailto:john.doe@example.org
	ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE:mailt
	o:jane.doe@example.org
	ATTENDEE;ROLE=OPT-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE:mailt
	o:user.external@example.com
	SEQUENCE:1
	TRANSP:OPAQUE
	END:VEVENT
	"""
	event = event_from_ical(vevent)
	self.assertRaises(EventIntegrityError, event.to_message)

	def test_025_to_dict(self):
	data = event_from_string(xml_event).to_dict()

	self.assertIsInstance(data, dict)
	self.assertIsInstance(data['start'], datetime.datetime)
	self.assertIsInstance(data['end'], datetime.datetime)
	self.assertIsInstance(data['created'], datetime.datetime)
	self.assertIsInstance(data['lastmodified-date'], datetime.datetime)
	self.assertEqual(data['uid'], '75c740bb-b3c6-442c-8021-ecbaeb0a025e')
	self.assertEqual(data['summary'], 'test')
	self.assertEqual(data['location'], 'Room 101')
	self.assertEqual(data['description'], 'test')
	self.assertEqual(data['priority'], 5)
	self.assertEqual(data['status'], 'CANCELLED')
	self.assertEqual(data['sequence'], 1)
	self.assertEqual(data['transparency'], False)
	self.assertEqual(data['X-GWSHOW-AS'], 'BUSY')

	self.assertIsInstance(data['organizer'], dict)
	self.assertEqual(data['organizer']['email'], 'john@example.org')

	self.assertEqual(len(data['attendee']), 2)
	self.assertIsInstance(data['attendee'][0], dict)

	self.assertEqual(len(data['attach']), 1)
	self.assertIsInstance(data['attach'][0], dict)
	self.assertEqual(data['attach'][0]['fmttype'], 'text/html')

	self.assertIsInstance(data['rrule'], dict)
	self.assertEqual(data['rrule']['freq'], 'DAILY')
	self.assertEqual(data['rrule']['interval'], 1)
	self.assertEqual(data['rrule']['wkst'], 'MO')
	self.assertIsInstance(data['rrule']['until'], datetime.date)

	self.assertIsInstance(data['alarm'], list)
	self.assertEqual(len(data['alarm']), 2)
	self.assertEqual(data['alarm'][0]['action'], 'DISPLAY')
	self.assertEqual(data['alarm'][1]['action'], 'EMAIL')
	self.assertEqual(data['alarm'][1]['trigger']['value'], '-P1D')
	self.assertEqual(len(data['alarm'][1]['attendee']), 1)

	def test_026_compute_diff(self):
	e1 = event_from_string(xml_event)
	e2 = event_from_string(xml_event)

	e2.set_summary("test2")
	e2.set_end(e1.get_end() + datetime.timedelta(hours=2))
	e2.set_sequence(e1.get_sequence() + 1)
	e2.set_attendee_participant_status("jane@example.org", "DECLINED")
	e2.set_lastmodified()

	diff = compute_diff(e1.to_dict(), e2.to_dict(), True)
	self.assertEqual(len(diff), 5)

	ps = self._find_prop_in_list(diff, 'summary')
	self.assertIsInstance(ps, OrderedDict)
	self.assertEqual(ps['new'], "test2")

	pa = self._find_prop_in_list(diff, 'attendee')
	self.assertIsInstance(pa, OrderedDict)
	self.assertEqual(pa['index'], 0)
	self.assertEqual(pa['new'], dict(partstat='DECLINED'))


	def test_026_property_to_string(self):
	data = event_from_string(xml_event).to_dict()
	self.assertEqual(property_to_string('sequence', data['sequence']), "1")
	self.assertEqual(property_to_string('start', data['start']), "2014-08-13 10:00 (BST)")
	self.assertEqual(property_to_string('organizer', data['organizer']), "Doe, John")
	self.assertEqual(property_to_string('attendee', data['attendee'][0]), "jane@example.org, Accepted")
	self.assertEqual(property_to_string('rrule', data['rrule']), "Every 1 day(s) until 2015-07-25")
	self.assertEqual(property_to_string('exdate', data['exdate'][0]), "2014-07-19")
	self.assertEqual(property_to_string('alarm', data['alarm'][0]), "Display message 2 hour(s) before")
	self.assertEqual(property_to_string('attach', data['attach'][0]), "noname.1395223627.5555")


	def test_027_merge_attendee_data(self):
	event = event_from_string(xml_event)

	jane = event.get_attendee("jane@example.org")
	jane.set_participant_status('TENTATIVE')
	jack = Attendee("jack@example.org", name="Jack", role='OPT-PARTICIPANT')
	some = event.set_attendee_participant_status("somebody@else.com", 'ACCEPTED')

	# update jane + add jack
	event.update_attendees([jane,jack])
	self.assertEqual(len(event.get_attendees()), 3)
	self.assertEqual(event.get_attendee("jane@example.org").get_participant_status(), kolabformat.PartTentative)
	self.assertEqual(event.get_attendee("somebody@else.com").get_participant_status(), kolabformat.PartAccepted)

	# test write + read
	event = event_from_string(str(event))
	exception = event.get_exceptions()[0]
	self.assertEqual(len(exception.get_attendees()), 2)
	self.assertEqual(event.get_attendee("jane@example.org").get_participant_status(), kolabformat.PartTentative)
	self.assertEqual(event.get_attendee("jack@example.org").get_name(), "Jack")
	self.assertRaises(ValueError, exception.get_attendee, "somebody@else.com") # not addded to exception


	def _find_prop_in_list(self, diff, name):
	for prop in diff:
	if prop['property'] == name:
	return prop
	return None


	if __name__ == '__main__':
	unittest.main()

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