私はいくつかの支払いオプションがあるはずの小さなウェブショップを開発しています。私のプラットフォームはGoogleAppEngineとPython2.7です。django / pythonであるsatchmoというプロジェクトがあり、そのコードを使用できるかどうか疑問に思います。支払いのモデルのいくつかのオープンソースは次のとおりです。
class PaymentOption(models.Model):
"""
If there are multiple options - CC, Cash, COD, etc this class allows
configuration.
"""
description = models.CharField(_("Description"), max_length=20)
active = models.BooleanField(_("Active"),
help_text=_("Should this be displayed as an option for the user?"))
optionName = models.CharField(_("Option Name"), max_length=20, choices=iterchoices_db(payment.config.labelled_gateway_choices),
unique=True,
help_text=_("The class name as defined in payment.py"))
sortOrder = models.IntegerField(_("Sort Order"))
class Meta:
verbose_name = _("Payment Option")
verbose_name_plural = _("Payment Options")
class CreditCardDetail(models.Model):
"""
Stores an encrypted CC number, its information, and its
displayable number.
"""
orderpayment = models.ForeignKey('shop.OrderPayment', unique=True,
related_name="creditcards")
credit_type = models.CharField(_("Credit Card Type"), max_length=16, choices=iterchoices_db(payment.config.credit_choices))
display_cc = models.CharField(_("CC Number (Last 4 digits)"),
max_length=4, )
encrypted_cc = models.CharField(_("Encrypted Credit Card"),
max_length=40, blank=True, null=True, editable=False)
expire_month = models.IntegerField(_("Expiration Month"))
expire_year = models.IntegerField(_("Expiration Year"))
card_holder = models.CharField(_("card_holder Name"), max_length=60, blank=True)
start_month = models.IntegerField(_("Start Month"), blank=True, null=True)
start_year = models.IntegerField(_("Start Year"), blank=True, null=True)
issue_num = models.CharField(blank=True, null=True, max_length=2)
def storeCC(self, ccnum):
"""Take as input a valid cc, encrypt it and store the last 4 digits in a visible form"""
self.display_cc = ccnum[-4:]
encrypted_cc = _encrypt_code(ccnum)
if config_value('PAYMENT', 'STORE_CREDIT_NUMBERS'):
self.encrypted_cc = encrypted_cc
else:
standin = "%s%i%i%i" % (self.display_cc, self.expire_month, self.expire_year, self.orderpayment.id)
self.encrypted_cc = _encrypt_code(standin)
key = _encrypt_code(standin + '-card')
keyedcache.cache_set(key, skiplog=True, length=60*60, value=encrypted_cc)
def setCCV(self, ccv):
"""Put the CCV in the cache, don't save it for security/legal reasons."""
if not self.encrypted_cc:
raise ValueError('CreditCardDetail expecting a credit card number to be stored before storing CCV')
keyedcache.cache_set(self.encrypted_cc, skiplog=True, length=60*60, value=ccv)
def getCCV(self):
try:
ccv = keyedcache.cache_get(self.encrypted_cc)
except keyedcache.NotCachedError:
ccv = ""
return ccv
ccv = property(fget=getCCV, fset=setCCV)
def _decryptCC(self):
ccnum = _decrypt_code(self.encrypted_cc)
if not config_value('PAYMENT', 'STORE_CREDIT_NUMBERS'):
try:
key = _encrypt_code(ccnum + '-card')
encrypted_ccnum = keyedcache.cache_get(key)
ccnum = _decrypt_code(encrypted_ccnum)
except keyedcache.NotCachedError:
ccnum = ""
return ccnum
decryptedCC = property(_decryptCC)
def _expireDate(self):
return(str(self.expire_month) + "/" + str(self.expire_year))
expirationDate = property(_expireDate)
class Meta:
verbose_name = _("Credit Card")
verbose_name_plural = _("Credit Cards")
def _decrypt_code(code):
"""Decrypt code encrypted by _encrypt_code"""
# In some blowfish implementations, > 56 char keys can cause problems
secret_key = settings.SECRET_KEY[:56]
encryption_object = Blowfish.new(secret_key)
# strip padding from decrypted credit card number
return encryption_object.decrypt(base64.b64decode(code)).rstrip('X')
def _encrypt_code(code):
"""Quick encrypter for CC codes or code fragments"""
# In some blowfish implementations, > 56 char keys can cause problems
secret_key = settings.SECRET_KEY[:56]
encryption_object = Blowfish.new(secret_key)
# block cipher length must be a multiple of 8
padding = ''
if (len(code) % 8) <> 0:
padding = 'X' * (8 - (len(code) % 8))
return base64.b64encode(encryption_object.encrypt(code + padding))
コードはアプリエンジンに移植可能に見えます。必要に応じて、このコードを移植できますか、または移植する必要があります。satchmoプロジェクトは、Webショップを実装するときに直面する問題の多くをすでに解決していると思いますか？それとも、アプリエンジンで実際にsatchmoを実行することについての同様の質問で提案されたように、もっと「djangoに適したホスティング」を取得する必要がありますか？