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Add double-spend safeguard

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Raphael Michel
2019-10-17 16:03:57 +02:00
parent ac2df35db6
commit b3e6f44027
8 changed files with 104 additions and 14 deletions
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src/pretix/base/models/giftcards.py
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@@ -6,6 +6,7 @@ from django.db.models import Sum
from django.utils.crypto import get_random_string
from django.utils.translation import ugettext_lazy as _
from pretix.base.banlist import banned
from pretix.base.models import LoggedModel
@@ -13,7 +14,7 @@ def gen_giftcard_secret():
charset = list('ABCDEFGHJKLMNPQRSTUVWXYZ3789')
while True:
code = get_random_string(length=settings.ENTROPY['giftcard_secret'], allowed_chars=charset)
if not GiftCard.objects.filter(secret=code).exists():
if not banned(code) and not GiftCard.objects.filter(secret=code).exists():
return code