def generate_ical_event(event, now):
cal_event = Event()
cal_event.add('DTSTAMP', vDatetime(now))
cal_event.add('SEQUENCE', 0)
cal_event.add('UID', 'event_{}@foss.events'.format(event['id']))
cal_event.add('summary', event['label'])
cal_event.add('dtstart', vDate(event['start_date']))
cal_end_date = event['end_date'] + timedelta(days=1)
cal_event.add('dtend', vDate(cal_end_date))
cal_event.add('location', event['readable_location'])
cal_event.add('url', vUri(event['abs_details_url']))
description = event['description'] or ''
description += '\n\n'
if event['has_details']:
description += 'Read everything about ' + event['label'] + ' in a nutshell on // foss.events: ' + event['abs_details_url'] + '\n\n'
description += 'Official Homepage: ' + event['homepage'] + '\n\n'
if event['osm_link']:
description += 'Find your way: ' + event['osm_link'] + '\n'
cal_event['description'] = remove_tags(description)
if event['lat'] and event['lon']:
cal_event['geo'] = vGeo([event['lat'], event['lon']])
return cal_event
def get(self, request, *args, **kwargs):
events = (Event.objects.filter(is_online=True).filter(
begins_at__gte=datetime.now() - timedelta(days=90)))
cal = icalendar.Calendar()
cal.add('version', '2.0')
cal.add('prodid', '-//PortailVA events calendar//mxm.dk//')
tz = pytz.timezone('Europe/Paris')
for event in events:
ev = icalendar.Event()
if event.association.acronym:
ev.add('summary',
event.name + ' (' + event.association.acronym + ')')
else:
ev.add('summary',
event.name + ' (' + event.association.name + ')')
ev.add('description', event.description)
# Use vText to prevent iCalendar to handle the string as a dictionary and not as a text
# See https://icalendar.readthedocs.io/en/latest/usage.html#example
ev.add('categories', vText(event.type.name))
ev.add('dtstart', event.begins_at.replace(tzinfo=tz))
ev.add('dtend', event.ends_at.replace(tzinfo=tz))
if event.place:
ev.add('location', event.place.name)
ev.add('geo', vGeo([event.place.lat, event.place.long]))
ev.add('uid', event.id)
cal.add_component(ev)
response = HttpResponse(content_type='text/calendar')
response.write(cal.to_ical().replace(b'\r\n', b'\n').strip())
return response
def build_reservations_ical_file(reservations):
"""
Return iCalendar file containing given reservations
"""
cal = Calendar()
cal['X-WR-CALNAME'] = vText('RESPA')
cal['name'] = vText('RESPA')
for reservation in reservations:
event = Event()
event['uid'] = 'respa_reservation_{}'.format(reservation.id)
event['dtstart'] = vDatetime(reservation.begin)
event['dtend'] = vDatetime(reservation.end)
unit = reservation.resource.unit
event['location'] = vText('{} {} {}'.format(unit.name, unit.street_address, unit.address_zip))
event['geo'] = vGeo(unit.location)
event['summary'] = vText('{} {}'.format(unit.name, reservation.resource.name))
cal.add_component(event)
return cal.to_ical()
def build_reservations_ical_file(reservations):
"""
Return iCalendar file containing given reservations
"""
cal = Calendar()
for reservation in reservations:
event = Event()
begin_utc = timezone.localtime(reservation.begin, timezone.utc)
end_utc = timezone.localtime(reservation.end, timezone.utc)
event['uid'] = 'respa_reservation_{}'.format(reservation.id)
event['dtstart'] = vDatetime(begin_utc)
event['dtend'] = vDatetime(end_utc)
unit = reservation.resource.unit
event['location'] = vText('{} {} {}'.format(unit.name, unit.street_address, unit.address_zip))
if unit.location:
event['geo'] = vGeo(unit.location)
event['summary'] = vText('{} {}'.format(unit.name, reservation.resource.name))
cal.add_component(event)
return cal.to_ical()
def generate_event_ical_files(events):
for event in events:
cal = Calendar()
cal.add('prodid', '-//foss.events//foss.events//')
cal.add('version', '1.3.3.7')
cal_event = Event()
cal_event.add('summary', event['label'])
cal_event.add('dtstart', vDate(event['start_date']))
cal_end_date = event['end_date'] + timedelta(days=1)
cal_event.add('dtend', vDate(cal_end_date))
cal_event.add('location', event['readable_location'])
cal_event.add('url', vUri(event['abs_details_url']))
description = event['description'] or ''
description += '\n\n'
if event['has_details']:
description += 'Read everything about ' + event[
'label'] + ' in a nutshell on // foss.events: ' + event[
'abs_details_url'] + '\n\n'
description += 'Official Homepage: ' + event['homepage'] + '\n\n'
if event['osm_link']:
description += 'Find your way: ' + event['osm_link'] + '\n'
cal_event['description'] = remove_tags(description)
cal.add_component(cal_event)
if event['lat'] and event['lon']:
cal_event['geo'] = vGeo([event['lat'], event['lon']])
filepath = generate_event_ical_path(event)
with open('build/' + filepath, 'wb') as f:
f.write(cal.to_ical())
def create_ical_entry (e, request):
event = icalendar.Event()
# TODO should we generate an UUID when creating the event?
uid = u'*****@*****.**' % (str(e.id))
event['uid'] = icalendar.vText(uid)
event['dtstamp'] = icalendar.vDatetime(datetime.utcnow())
# The sequence field must be incremented each time the event is modifed.
# The trick here is to subtract the create TS from the modify TS and
# use the difference as sequence.
sequence = 0
if e.date_time_created and e.date_time_modified:
createTimestamp = time.mktime(e.get_date_time_created_utc().timetuple())
modifyTimestamp = time.mktime(e.get_date_time_modified_utc().timetuple())
sequence = modifyTimestamp - createTimestamp
event['sequence'] = icalendar.vInt(sequence) + 1
# created and last-modified
if e.date_time_created:
event['created'] = icalendar.vDatetime(e.get_date_time_created_utc())
if e.date_time_modified:
event['last-modified'] = icalendar.vDatetime(e.get_date_time_modified_utc())
# TENTATIVE, CONFIRMED, CANCELLED
if e.canceled:
event['status'] = icalendar.vText(u'CANCELLED')
else:
event['status'] = icalendar.vText(u'CONFIRMED')
relative_url = e.get_absolute_url()
absolute_url = request.build_absolute_uri(relative_url)
event['url'] = icalendar.vUri(absolute_url)
if e.title:
event['summary'] = icalendar.vText(e.title)
description = u''
if e.description:
description += e.description
if e.url:
if len(description) > 0:
description += u'\n\n'
description += u'Event Webseite: ' + e.url
if len(description) > 0:
description += u'\n\n'
description += u'Event bei Techism: ' + absolute_url
event['description'] = icalendar.vText(description)
if e.date_time_begin:
event['dtstart'] = icalendar.vDatetime(e.get_date_time_begin_utc())
if e.date_time_end:
event['dtend'] = icalendar.vDatetime(e.get_date_time_end_utc())
# geo value isn't used by iCal readers :-(
# maybe a trick is to add the geo coordinates to the location field using the following format:
# $latitude, $longitude ($name, $street, $city)
if e.location:
location = u'%s, %s, %s' % (e.location.name, e.location.street, e.location.city)
event['location'] = icalendar.vText(location)
if e.location and e.location.latitude and e.location.longitude:
event['geo'] = icalendar.vGeo((e.location.latitude, e.location.longitude))
return event
tz = pytz.timezone('America/Denver')
event = Event()
event.add('dtstart', tz.localize(datetime.datetime(2018, 1, 13, 10, 00, 00)))
event.add('dtend', tz.localize(datetime.datetime(2018, 1, 13, 11, 15, 00)))
event.add('dtstamp', tz.localize(datetime.datetime(2018, 1, 9, 6, 27, 00)))
event.add('created', tz.localize(datetime.datetime(2018, 1, 9, 6, 27, 00)))
event.add('description', 'Description is really cool!')
event.add('comment', 'Commentary about this event is that it\'s the bomb!')
event.add('summary', 'In summary, come!')
imgPath = "/Users/Bowen/Documents/calendar/propose.PNG"
AttachPNG(event, imgPath)
event.add('url', 'www.google.com')
geo = icalendar.vGeo([39.743476, -105.003218])
event.add('geo', geo)
event.add('location', '1900 16th Street\nDenver, CO 80220')
alarm = Alarm()
alarm.add('action', 'DISPLAY')
alarm.add('description', 'Event starting soon')
dur = icalendar.vDuration(datetime.timedelta(0, 0, 0, 0, -23))
alarm.add('trigger', dur)
event.add_component(alarm)
cal.add_component(event)
calPath = "/Users/Bowen/Documents/calendar/testCal.ics"
with open(calPath, 'wb') as f:
f.write(cal.to_ical())
def ical(request):
ninety_days = datetime.utcnow() + timedelta(days=90)
event_list = service.get_event_query_set().filter(date_time_begin__lte=ninety_days).order_by('date_time_begin')
cal = icalendar.Calendar()
cal['prodid'] = icalendar.vText(u'-//Techism//Techism//DE')
cal['version'] = icalendar.vText(u'2.0')
cal['x-wr-calname'] = icalendar.vText(u'Techism')
cal['x-wr-caldesc'] = icalendar.vText(u'Techism - IT-Events in München')
for e in event_list:
event = icalendar.Event()
# TODO should we generate an UUID when creating the event?
uid = u'*****@*****.**' % (str(e.id))
event['uid'] = icalendar.vText(uid)
event['dtstamp'] = icalendar.vDatetime(datetime.utcnow())
# The sequence field must be incremented each time the event is modifed.
# The trick here is to subtract the create TS from the modify TS and
# use the difference as sequence.
sequence = 0
if e.date_time_created and e.date_time_modified:
createTimestamp = time.mktime(e.get_date_time_created_utc().timetuple())
modifyTimestamp = time.mktime(e.get_date_time_modified_utc().timetuple())
sequence = modifyTimestamp - createTimestamp
event['sequence'] = icalendar.vInt(sequence)
# created and last-modified
if e.date_time_created:
event['created'] = icalendar.vDatetime(e.get_date_time_created_utc())
if e.date_time_modified:
event['last-modified'] = icalendar.vDatetime(e.get_date_time_modified_utc())
# TENTATIVE, CONFIRMED, CANCELLED
event['status'] = icalendar.vText(u'CONFIRMED')
if e.title:
event['summary'] = icalendar.vText(e.title)
if e.description:
event['description'] = icalendar.vText(e.description)
if e.date_time_begin:
event['dtstart'] = icalendar.vDatetime(e.get_date_time_begin_utc())
if e.date_time_end:
event['dtend'] = icalendar.vDatetime(e.get_date_time_end_utc())
if e.url:
relative_url = reverse('event-show', args=[e.id])
absolute_url = request.build_absolute_uri(relative_url)
event['url'] = icalendar.vUri(absolute_url)
# geo value isn't used by iCal readers :-(
# maybe a trick is to add the geo coordinates to the location field using the following format:
# $latitude, $longitude ($name, $street, $city)
if e.location:
location = u'%s, %s, %s' % (e.location.name, e.location.street, e.location.city)
event['location'] = icalendar.vText(location)
if e.location and e.location.latitude and e.location.longitude:
event['geo'] = icalendar.vGeo((e.location.latitude, e.location.longitude))
cal.add_component(event)
response = HttpResponse(cal.as_string())
response['Content-Type'] = 'text/calendar; charset=UTF-8'
response['Cache-Control'] = 'no-cache, no-store, max-age=0, must-revalidate'
response['Pragma'] = 'no-cache'
response['Expires'] = 'Fri, 01 Jan 1990 00:00:00 GMT'
return response