def authenticate(self, request):
cacheService = CacheService()
deviceToken = request.META.get('HTTP_SSTOKEN')
if not deviceToken:
raise exceptions.NotAuthenticated(SSException.AUTH_FAILED)
try:
cd = cacheService.getConsumerDeviceByToken(deviceToken)
c = cacheService.getConsumerById(cd.consumerId)
return (c, None)
except ConsumerDevice.DoesNotExist:
cs = ConsumerService()
cid = cs.registerDevice(deviceToken)
c = Consumer.objects.get(id=cid)
return (c, None)
def getApproval(self, cardNum, amount, merchantUuid, merchantName, txType,
mccCode):
ssConst = SSConst()
consumerCard = None
consumer = None
category = None
prefs = None
aggs = None
merchant = None
millis = SSUtil.getMillis()
cacheService = CacheService()
cardService = CardService()
approvalTypeJson = ssConst.getJson(ssConst.APPROVAL_TYPES)
print "1"
# Check if card exists
try:
consumerCard = cacheService.getCardByNum(cardNum)
except Exception as e:
return TxnValidationVO(False, False, 'Block',
SSException.INVALID_CARD, False)
print "1.5 " + str(consumerCard.blockedTxTypes)
if SSUtil.isIdinList(consumerCard.blockedTxTypes, txType):
return TxnValidationVO(False, True, 'Block',
txType + " transactions are disabled.",
True)
print "2"
try:
merchant = cacheService.getMerchantByUuid(merchantUuid)
except Exception as e:
pass
print "3"
# Check if card is blocked
if consumerCard.status == 0:
return TxnValidationVO(False, True, 'Block',
"Your card is blocked.", True)
print "4"
# By any chance the category is not in our records, go back,
# Also need this for previous txn
try:
category = cacheService.getCategoryByMccCode(mccCode)
except TxnCategory.DoesNotExist:
return TxnValidationVO(False, False, 'Block', "Unknown category.",
False)
print "5"
# if it was tried in last 10 minutes and user approved it - go ahead
try:
if not merchant is None:
maxAllowedCreatedTime = millis - ssConst.ALLOWED_MILLIS_FOR_RETRY
qs = ConsumerTxn.objects.all().filter(
consumerId=consumerCard.consumerId,
cardId=consumerCard.id,
txType__endswith=txType,
category_id=category.id,
merchant_id=merchant.id,
amtSpentSS=amount,
created__gt=maxAllowedCreatedTime).order_by('-created')[:1]
consumerTxn = qs[0]
if not consumerTxn is None and consumerTxn.ssApprovalStatus == ssConst.APPROVAL_STATUSES[
3][0]:
return TxnValidationVO(
True, True, 'Approve',
"We approved a transaction on your card for " +
ssConst.CURRENCY_SYMBOL + str(amount) + ".", True)
except Exception as e:
print "Error while matching transaction " + e.message
pass
print "6"
# No point in moving further if the consumer doesn't exist, but don't record it for now
try:
consumer = cacheService.getConsumerById(consumerCard.consumerId)
except Consumer.DoesNotExist:
return TxnValidationVO(False, False, 'Block',
SSException.INVALID_USER, False)
print "7"
# Check if merchant is blocked
print "blocked merchants are " + consumer.blockedMerchants
if not merchant is None:
if SSUtil.isIdinList(consumer.blockedMerchants, merchant.id):
return TxnValidationVO(
False, True, 'Block',
"You have blocked all transactions from Merchant \"" +
merchant.name + "\"", True)
print "8"
# Now check the aggregates and preferences
prefs = cacheService.getConsumerPrefs(consumer.id)
if not prefs:
cardService.createDefaultPrefsAndAggs(consumerCard)
print "9"
aggs = cacheService.getConsumerAggs(consumer.id)
if not aggs:
#TODO: If user has no aggregates then no point in holding it - we just tried creating
return TxnValidationVO(
True, True, 'Block',
"Internal server error - No aggregates available for the user. ",
False)
for pref in prefs:
#Ignore the preferences which are of no use for this transaction
if pref.categoryKey != 'Any' and pref.categoryKey != category.name:
continue
if pref.txType != 'Any' and pref.txType != txType:
continue
if not merchant is None and pref.merchantId != -1 and pref.merchantId != merchant.id:
continue
if pref.cardId != -1 and pref.cardId != consumerCard.id:
continue
# Compare matching aggs for the rest of the preferences
for agg in aggs:
if pref.periodKey == agg.periodKey and pref.categoryKey == agg.categoryKey and pref.txType == agg.txType and agg.merchantId == pref.merchantId and agg.cardId == pref.cardId:
if pref.limit < (agg.amtSpentSS + Decimal(amount)):
if pref.ssApproval == 'Block' or pref.ssApproval == 'AskMe':
msgToUser = "******" + pref.periodKey.lower(
) + " spend limit of " + ssConst.CURRENCY_SYMBOL + str(
pref.limit)
if pref.categoryKey != 'Any':
msgToUser = msgToUser + " for " + pref.categoryKey
msgToUser = msgToUser + "."
return TxnValidationVO(False, True,
pref.ssApproval, msgToUser,
True)
print "10"
return TxnValidationVO(
True, True, 'Approve', "We approved a " + ssConst.CURRENCY_SYMBOL +
str(amount) + " charge from " + merchantName + ".", True)