forked from CGM_Public/pretix_original
117 lines
4.3 KiB
Python
117 lines
4.3 KiB
Python
#
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# This file is part of pretix (Community Edition).
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#
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# Copyright (C) 2014-2020 Raphael Michel and contributors
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# Copyright (C) 2020-2021 rami.io GmbH and contributors
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#
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# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
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# Public License as published by the Free Software Foundation in version 3 of the License.
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#
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# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
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# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
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# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
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# this file, see <https://pretix.eu/about/en/license>.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along with this program. If not, see
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# <https://www.gnu.org/licenses/>.
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#
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from django.db import transaction
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from django.utils.crypto import get_random_string
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from django.utils.translation import gettext_lazy as _
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class BaseMediaType:
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medium_created_by_server = False
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supports_orderposition = False
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supports_giftcard = False
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@property
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def identifier(self):
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raise NotImplementedError()
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@property
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def verbose_name(self):
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raise NotImplementedError()
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def generate_identifier(self, organizer):
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if self.medium_created_by_server:
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raise NotImplementedError()
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else:
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raise ValueError("Media type does not allow to generate identifier")
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def is_active(self, organizer):
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return organizer.settings.get(f'reusable_media_type_{self.identifier}', as_type=bool, default=False)
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def handle_unknown(self, organizer, identifier, user, auth):
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pass
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def __str__(self):
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return str(self.verbose_name)
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class BarcodePlainMediaType(BaseMediaType):
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identifier = 'barcode'
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verbose_name = _('Barcode / QR-Code')
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medium_created_by_server = True
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supports_giftcard = False
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supports_orderposition = True
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def generate_identifier(self, organizer):
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return get_random_string(
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length=organizer.settings.reusable_media_type_barcode_identifier_length,
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# Exclude o,0,1,i to avoid confusion with bad fonts/printers
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# We use upper case to make collisions with ticket secrets less likely
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allowed_chars='ABCDEFGHJKLMNPQRSTUVWXYZ23456789'
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)
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class NfcUidMediaType(BaseMediaType):
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identifier = 'nfc_uid'
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verbose_name = _('NFC UID-based')
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medium_created_by_server = False
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supports_giftcard = True
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supports_orderposition = False
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def handle_unknown(self, organizer, identifier, user, auth):
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from pretix.base.models import GiftCard, ReusableMedium
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if organizer.settings.get(f'reusable_media_type_{self.identifier}_autocreate_giftcard', as_type=bool):
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if identifier.startswith("08"):
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# Don't create gift cards for NFC UIDs that start with 08, which represents NFC cards that issue random
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# UIDs on every read, so they won't be useful.
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return
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with transaction.atomic():
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gc = GiftCard.objects.create(
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issuer=organizer,
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expires=organizer.default_gift_card_expiry,
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currency=organizer.settings.get(f'reusable_media_type_{self.identifier}_autocreate_giftcard_currency'),
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)
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m = ReusableMedium.objects.create(
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type=self.identifier,
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identifier=identifier,
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organizer=organizer,
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active=True,
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linked_giftcard=gc
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)
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m.log_action(
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'pretix.reusable_medium.created.auto',
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user=user, auth=auth,
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)
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gc.log_action(
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'pretix.giftcards.created',
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user=user, auth=auth,
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)
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return m
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MEDIA_TYPES = {
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m.identifier: m for m in [
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BarcodePlainMediaType(),
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NfcUidMediaType(),
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]
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}
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