# # This file is part of pretix (Community Edition). # # Copyright (C) 2014-2020 Raphael Michel and contributors # Copyright (C) 2020-2021 rami.io GmbH and contributors # # This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General # Public License as published by the Free Software Foundation in version 3 of the License. # # ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are # applicable granting you additional permissions and placing additional restrictions on your usage of this software. # Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive # this file, see . # # This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied # warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more # details. # # You should have received a copy of the GNU Affero General Public License along with this program. If not, see # . # import datetime from urllib.parse import urlparse import vobject from django.conf import settings from django.utils.formats import date_format from django.utils.translation import gettext as _ from pretix.base.email import get_email_context from pretix.base.models import Event from pretix.helpers.format import format_map from pretix.multidomain.urlreverse import build_absolute_uri def get_public_ical(events): """ Return an ical feed for a sequence of events or subevents. The calendar files will only include public information. """ cal = vobject.iCalendar() cal.add('prodid').value = '-//pretix//{}//'.format(settings.PRETIX_INSTANCE_NAME.replace(" ", "_")) creation_time = datetime.datetime.now(datetime.timezone.utc) for ev in events: event = ev if isinstance(ev, Event) else ev.event tz = event.timezone if isinstance(ev, Event): url = build_absolute_uri(event, 'presale:event.index') else: url = build_absolute_uri(event, 'presale:event.index', { 'subevent': ev.pk }) vevent = cal.add('vevent') vevent.add('summary').value = str(ev.name) vevent.add('dtstamp').value = creation_time if ev.location: vevent.add('location').value = ", ".join(l.strip() for l in str(ev.location).splitlines() if l.strip()) vevent.add('uid').value = 'pretix-{}-{}-{}@{}'.format( event.organizer.slug, event.slug, ev.pk if not isinstance(ev, Event) else '0', urlparse(url).netloc ) if event.settings.show_times: vevent.add('dtstart').value = ev.date_from.astimezone(tz) else: vevent.add('dtstart').value = ev.date_from.astimezone(tz).date() # always add dtend as calendar apps otherwise have display issues use_date_to = event.settings.show_date_to and ev.date_to dtend = (ev.date_to if use_date_to else ev.date_from).astimezone(tz) if not event.settings.show_times: # with full-day events date_to in pretix is included (e.g. last day) # whereas dtend in vcalendar is non-inclusive => add one day for export dtend = dtend.date() + datetime.timedelta(days=1) elif not use_date_to: # date_from used as end-date => add 1h as a default duration dtend = dtend + datetime.timedelta(hours=1) vevent.add('dtend').value = dtend descr = [] descr.append(_('Tickets: {url}').format(url=url)) if ev.date_admission: descr.append(str(_('Admission: {datetime}')).format( datetime=date_format(ev.date_admission.astimezone(tz), 'SHORT_DATETIME_FORMAT') )) descr.append(_('Organizer: {organizer}').format(organizer=event.organizer.name)) # Actual ical organizer field is not useful since it will cause "your invitation was accepted" emails to the organizer vevent.add('description').value = '\n'.join(descr) return cal def get_private_icals(event, positions): """ Return a list of ical objects based on a sequence of positions. Unlike get_public_ical, this will - Generate multiple ical files instead of one (but with deduplication applied) - Respect the mail_attach_ical_description setting It is private in the sense that mail_attach_ical_description may contain content not suited for public display. We however intentionally do not allow using placeholders based on the order and position specifically. This is for two reasons: - In reality, many people will add their invite to their calendar which is shared with a larger team. People are probably not aware that they're sharing sensitive information such as their secret ticket link with everyone they share their calendar with. - It would be pretty hard to implement it in a way that doesn't require us to use distinct settings fields for emails to customers and to attendees, which feels like an overcomplication. """ tz = event.timezone creation_time = datetime.datetime.now(datetime.timezone.utc) calobjects = [] evs = set(p.subevent or event for p in positions) for ev in evs: if isinstance(ev, Event): url = build_absolute_uri(event, 'presale:event.index') else: url = build_absolute_uri(event, 'presale:event.index', { 'subevent': ev.pk }) if event.settings.mail_attach_ical_description: ctx = get_email_context(event=event, event_or_subevent=ev) description = format_map(str(event.settings.mail_attach_ical_description), ctx) else: # Default description descr = [] descr.append(_('Tickets: {url}').format(url=url)) if ev.date_admission: descr.append(str(_('Admission: {datetime}')).format( datetime=date_format(ev.date_admission.astimezone(tz), 'SHORT_DATETIME_FORMAT') )) # Actual ical organizer field is not useful since it will cause "your invitation was accepted" emails to the organizer descr.append(_('Organizer: {organizer}').format(organizer=event.organizer.name)) description = '\n'.join(descr) cal = vobject.iCalendar() cal.add('prodid').value = '-//pretix//{}//'.format(settings.PRETIX_INSTANCE_NAME.replace(" ", "_")) vevent = cal.add('vevent') vevent.add('summary').value = str(ev.name) vevent.add('description').value = description vevent.add('dtstamp').value = creation_time if ev.location: vevent.add('location').value = ", ".join(l.strip() for l in str(ev.location).splitlines() if l.strip()) vevent.add('uid').value = 'pretix-{}-{}-{}@{}'.format( event.organizer.slug, event.slug, ev.pk if not isinstance(ev, Event) else '0', urlparse(url).netloc ) if event.settings.show_times: vevent.add('dtstart').value = ev.date_from.astimezone(tz) else: vevent.add('dtstart').value = ev.date_from.astimezone(tz).date() if event.settings.show_date_to and ev.date_to: if event.settings.show_times: vevent.add('dtend').value = ev.date_to.astimezone(tz) else: # with full-day events date_to in pretix is included (e.g. last day) # whereas dtend in vcalendar is non-inclusive => add one day for export vevent.add('dtend').value = ev.date_to.astimezone(tz).date() + datetime.timedelta(days=1) calobjects.append(cal) return calobjects