def refund(self, refund_amount=None):
"refund the last transaction"
if len(self.cart.payments.all()) == 0:
return
# get the id of the last payment for refunding
payments = self.cart.payments.order_by('-last_updated')
if not payments:
return
payment = payments[0]
transaction_id = payment.transaction_id
if refund_amount and isinstance(refund_amount, (long, float, int)):
fps.do_fps("Refund",
"GET",
self.settings,
TransactionId=transaction_id,
RefundAmount=refund_amount,
CallerReference=uuid4().hex)
else:
fps.do_fps("Refund",
"GET",
self.settings,
TransactionId=transaction_id,
CallerReference=uuid4().hex)
payment.state = 'REFUND'
payment.save()
def cancel_recurring(self):
"Cancel recurring lineitem."
if len(self.cart.recurring_lineitems) == 0:
return
item = self.cart.recurring_lineitems[0]
token = item.payment_token
fps.do_fps("CancelToken", "GET", self.settings, TokenId=token)
item.is_active = False
item.save()
self.cart.update_state()
return CancelResult(None)
def cancel_recurring(self):
"Cancel recurring lineitem."
if len(self.cart.recurring_lineitems) == 0:
return
item = self.cart.recurring_lineitems[0]
token = item.payment_token
fps.do_fps("CancelToken", "GET", self.settings, TokenId=token)
item.is_active = False
item.save()
self.cart.update_state()
return CancelResult(None)
def refund(self, refund_amount=None):
"refund the last transaction"
if len(self.cart.payments.all()) == 0:
return
# get the id of the last payment for refunding
payments = self.cart.payments.order_by('-last_updated')
if not payments:
return
payment = payments[0]
transaction_id = payment.transaction_id
if refund_amount and isinstance(refund_amount, (long, float, int)):
fps.do_fps("Refund", "GET", self.settings, TransactionId=transaction_id, RefundAmount=refund_amount, CallerReference=uuid4().hex)
else:
fps.do_fps("Refund", "GET", self.settings, TransactionId=transaction_id, CallerReference=uuid4().hex)
payment.state = 'REFUND'
payment.save()
def verify_signature(self, raw_data, http_method, endpoint_uri):
self._update_with_store_settings()
response = fps.do_fps("VerifySignature", http_method, self.settings,
UrlEndPoint=endpoint_uri,
HttpParameters=raw_data)
xml = ET.XML(response)
el = xml.find(".//{http://fps.amazonaws.com/doc/2008-09-17/}VerificationStatus")
return el is not None and el.text == "Success"
def make_pay_request(self, token, caller_reference=None):
"""
Make a Pay request for the purchase with the given token.
Return status received from Amazon.
"""
self._update_with_store_settings()
if caller_reference is None:
caller_reference = self.cart.cart_uuid
self.log.debug("Doing FPS: %s" % token)
response = fps.do_fps("Pay", "GET", self.settings,
CallerReference=caller_reference,
SenderTokenId=token,
**{"TransactionAmount.CurrencyCode": "USD",
"TransactionAmount.Value": self.cart.total})
xml = ET.XML(response)
self.log.debug("FPS response: %s" % xml)
status = xml.find(".//%sTransactionStatus" % _FPS_NS)
self.log.debug("FPS status: %s" % status)
if status is None:
error = self._process_error(response)
if not error:
msg = "Pay request failed for purchase '%s' with response: %s" % (
self.cart, response)
else:
msg = "Pay request failed for purchase '%s' with code/message: '%s' '%s' (request id: '%s')" % (
self.cart, error[0], error[1], error[2])
self.log.warn(msg)
self.cart.notes.create(text=msg)
# An error code, maybe?
code = xml.find(".//Code")
if code is not None:
return code.text
return None
else:
# This work for pending payments?
transaction_id = xml.find(".//%sTransactionId" % _FPS_NS).text
self.log.debug('FPS trans id: %s' % transaction_id)
if status.text == "Pending":
self._create_payment(self.cart.total, transaction_id, "PENDING")
elif status.text == "Success":
pending = self.cart.payments.filter(transaction_id=transaction_id,
state="PENDING")
if pending:
pending[0].state = "PAID"
pending[0].save()
else:
self._create_payment(self.cart.total, transaction_id, "PAID")
self.begin_recurring()
else: # Cancelled or Failure
msg = "Pay request for purchase '%s' returned status '%s'. \nFull response: %s" % (
self.cart, status.text, response)
self.log.warn(msg)
self.cart.notes.create(text=msg)
self.cart.update_state()
return status.text
def cancel_recurring(self, cart):
"""Cancel recurring lineitem."""
if cart.recurringlineitems.count() == 0:
return
self._update_with_cart_settings(cart)
item = cart.recurringlineitems.all()[0]
token = item.payment_token
response = fps.do_fps("CancelToken", "GET", self.settings, TokenId=token)
item.is_active = False
item.save()
cart.update_state()
def verify_signature(self, raw_data, http_method, endpoint_uri):
self._update_with_store_settings()
response = fps.do_fps("VerifySignature",
http_method,
self.settings,
UrlEndPoint=endpoint_uri,
HttpParameters=raw_data)
xml = ET.XML(response)
el = xml.find(
".//{http://fps.amazonaws.com/doc/2008-09-17/}VerificationStatus")
return el is not None and el.text == "Success"
def make_pay_request(self, token, caller_reference=None):
"""
Make a Pay request for the purchase with the given token.
Return status received from Amazon.
"""
self._update_with_store_settings()
if caller_reference is None:
caller_reference = self.cart.cart_uuid
self.log.debug("Doing FPS: %s" % token)
response = fps.do_fps("Pay",
"GET",
self.settings,
CallerReference=caller_reference,
SenderTokenId=token,
**{
"TransactionAmount.CurrencyCode": "USD",
"TransactionAmount.Value": self.cart.total
})
xml = ET.XML(response)
self.log.debug("FPS response: %s" % xml)
status = xml.find(".//%sTransactionStatus" % _FPS_NS)
self.log.debug("FPS status: %s" % status)
if status is None:
error = self._process_error(response)
if not error:
msg = "Pay request failed for purchase '%s' with response: %s" % (
self.cart, response)
else:
msg = "Pay request failed for purchase '%s' with code/message: '%s' '%s' (request id: '%s')" % (
self.cart, error[0], error[1], error[2])
self.log.warn(msg)
self.cart.notes.create(text=msg)
# An error code, maybe?
code = xml.find(".//Code")
if code is not None:
return code.text
return None
else:
# This work for pending payments?
transaction_id = xml.find(".//%sTransactionId" % _FPS_NS).text
self.log.debug('FPS trans id: %s' % transaction_id)
if status.text == "Pending":
self._create_payment(self.cart.total, transaction_id,
"PENDING")
elif status.text == "Success":
pending = self.cart.payments.filter(
transaction_id=transaction_id, state="PENDING")
if pending:
pending[0].state = "PAID"
pending[0].save()
else:
self._create_payment(self.cart.total, transaction_id,
"PAID")
self.begin_recurring()
else: # Cancelled or Failure
msg = "Pay request for purchase '%s' returned status '%s'. \nFull response: %s" % (
self.cart, status.text, response)
self.log.warn(msg)
self.cart.notes.create(text=msg)
self.cart.update_state()
return status.text
