def revoke_line(self, line):
"""
Revokes the purchase of a 'Journal'. This will attempt to revoke the access that was granted when this order
was fulfilled.
Args:
line (Line): A line has data about the purchase. Access will be revoked for the 'journalaccess' record
associated with this line order.
Returns:
Returns True if journal access was successfully revoked.
"""
try:
logger.info('Attempting to revoke fulfillment of Line [%d]...',
line.id)
journal_uuid = line.product.attr.UUID
# TODO: WL-1680: All calls from ecommerce to other services should be async
revoke_journal_access(
site_configuration=line.order.site.siteconfiguration,
order_number=line.order.number)
audit_log('line_revoked',
order_line_id=line.id,
order_number=line.order.number,
product_class=line.product.get_product_class().name,
user_id=line.order.user.id,
journal_uuid=journal_uuid)
return True
except Exception: # pylint: disable=broad-except
logger.exception('Failed to revoke fulfillment of Line [%d].',
line.id)
return False
def fulfill_product(self, order, lines, email_opt_in=False):
"""
Fulfills the purchase of a 'Journal'
Args:
order (Order): The Order associated with the lines to be fulfilled. The user associated with the order is
presumed to be the student to grant access to the journal
lines (List of Lines): Order Lines, associated with purchased products in the Order. These should only be
'Journal' products.
email_opt_in (bool): Whether the user should be opted in to emails
as part of the fulfillment. Defaults to False.
Returns:
The original set of lines, with new statuses set based on the success or failure of fulfillment.
"""
logger.info(
'Attempting to fulfill "Journal" product types for order [%s]',
order.number)
for line in lines:
try:
journal_uuid = line.product.attr.UUID
except AttributeError:
logger.error(
'Journal fulfillment failed, journal does not have uuid. Order [%s]',
order.number)
line.set_status(LINE.FULFILLMENT_CONFIGURATION_ERROR)
continue
try:
# TODO: WL-1680: All calls from ecommerce to other services should be async
post_journal_access(
site_configuration=order.site.siteconfiguration,
order_number=order.number,
username=order.user.username,
journal_uuid=journal_uuid)
line.set_status(LINE.COMPLETE)
audit_log(
'line_fulfilled',
order_line_id=line.id,
order_number=order.number,
product_class=line.product.get_product_class().name,
user_id=order.user.id,
journal_uuid=journal_uuid,
)
logger.info(
'Successfully fulfilled Journal purchase for line [%d] of order [%s]',
line.id, order.number)
except (Timeout, ConnectionError) as neterr:
logger.error(
'Error fulfilling Journal purchase, line [%d] of order [%s] due to a network problem, err=[%s]',
line.id, order.number, neterr)
line.set_status(LINE.FULFILLMENT_NETWORK_ERROR)
except (Exception, HttpClientError) as err: # pylint: disable=broad-except
logger.error(
'Error fulfilling Journal purchase, line [%d] of order [%s] due to an error, err=[%s]',
line.id, order.number, err)
line.set_status(LINE.FULFILLMENT_SERVER_ERROR)
return order, lines
def record_payment(self, basket, handled_processor_response):
self.emit_checkout_step_events(basket, handled_processor_response,
self.payment_processor)
track_segment_event(basket.site, basket.owner, 'Payment Info Entered',
{'checkout_id': basket.order_number})
source_type, __ = SourceType.objects.get_or_create(
name=self.payment_processor.NAME)
total = handled_processor_response.total
reference = handled_processor_response.transaction_id
source = Source(source_type=source_type,
currency=handled_processor_response.currency,
amount_allocated=total,
amount_debited=total,
reference=reference,
label=handled_processor_response.card_number,
card_type=handled_processor_response.card_type)
event_type, __ = PaymentEventType.objects.get_or_create(
name=PaymentEventTypeName.PAID)
payment_event = PaymentEvent(
event_type=event_type,
amount=total,
reference=reference,
processor_name=self.payment_processor.NAME)
self.add_payment_source(source)
self.add_payment_event(payment_event)
audit_log('payment_received',
amount=payment_event.amount,
basket_id=basket.id,
currency=source.currency,
processor_name=payment_event.processor_name,
reference=payment_event.reference,
user_id=basket.owner.id)
def _issue_credit(self):
"""Issue a credit/refund to the purchaser via the payment processor used for the original order."""
try:
# NOTE: Update this if we ever support multiple payment sources for a single order.
source = self.order.sources.first()
processor = get_processor_class_by_name(source.source_type.name)(
self.order.site)
amount = self.total_credit_excl_tax
refund_reference_number = processor.issue_credit(
self.order.number, self.order.basket, source.reference, amount,
self.currency)
source.refund(amount, reference=refund_reference_number)
event_type, __ = PaymentEventType.objects.get_or_create(
name=PaymentEventTypeName.REFUNDED)
PaymentEvent.objects.create(event_type=event_type,
order=self.order,
amount=amount,
reference=refund_reference_number,
processor_name=processor.NAME)
audit_log('credit_issued',
amount=amount,
currency=self.currency,
processor_name=processor.NAME,
refund_id=self.id,
user_id=self.user.id)
except AttributeError:
# Order has no sources, resulting in an exception when trying to access `source_type`.
# This occurs when attempting to refund free orders.
logger.info("No payments to credit for Refund [%d]", self.id)
def _issue_credit(self):
"""Issue a credit to the purchaser via the payment processor used for the original order."""
try:
# NOTE: Update this if we ever support multiple payment sources for a single order.
source = self.order.sources.first()
processor = get_processor_class_by_name(source.source_type.name)(self.order.site)
amount = self.total_credit_excl_tax
refund_reference_number = processor.issue_credit(self.order, source.reference, amount, self.currency)
source.refund(amount, reference=refund_reference_number)
event_type, __ = PaymentEventType.objects.get_or_create(name=PaymentEventTypeName.REFUNDED)
PaymentEvent.objects.create(
event_type=event_type,
order=self.order,
amount=amount,
reference=refund_reference_number,
processor_name=processor.NAME
)
audit_log(
'credit_issued',
amount=amount,
currency=self.currency,
processor_name=processor.NAME,
refund_id=self.id,
user_id=self.user.id
)
except AttributeError:
# Order has no sources, resulting in an exception when trying to access `source_type`.
# This occurs when attempting to refund free orders.
logger.info("No payments to credit for Refund [%d]", self.id)
def revoke_line(self, line):
try:
logger.info('Attempting to revoke fulfillment of Line [%d]...', line.id)
UUID = line.product.attr.UUID
entitlement_option = Option.objects.get(code='course_entitlement')
course_entitlement_uuid = line.attributes.get(option=entitlement_option).value
entitlement_api_client = EdxRestApiClient(
get_lms_entitlement_api_url(),
jwt=line.order.site.siteconfiguration.access_token
)
# DELETE to the Entitlement API.
entitlement_api_client.entitlements(course_entitlement_uuid).delete()
audit_log(
'line_revoked',
order_line_id=line.id,
order_number=line.order.number,
product_class=line.product.get_product_class().name,
UUID=UUID,
certificate_type=getattr(line.product.attr, 'certificate_type', ''),
user_id=line.order.user.id
)
return True
except Exception: # pylint: disable=broad-except
logger.exception('Failed to revoke fulfillment of Line [%d].', line.id)
return False
def fulfill_product(self, order, lines):
"""
Fulfills the purchase of a 'Journal'
Args:
order (Order): The Order associated with the lines to be fulfilled. The user associated with the order is
presumed to be the student to grant access to the journal
lines (List of Lines): Order Lines, associated with purchased products in the Order. These should only be
'Journal' products.
Returns:
The original set of lines, with new statuses set based on the success or failure of fulfillment.
"""
logger.info(
'Attempting to fulfill "Journal" product types for order [%s]',
order.number)
for line in lines:
try:
journal_uuid = line.product.attr.UUID
except AttributeError:
logger.error(
'Journal Product does not have required attributes, [uuid]'
)
line.set_status(LINE.FULFILLMENT_CONFIGURATION_ERROR)
continue
try:
# TODO: WL-1680: All calls from ecommerce to other services should be async
post_journal_access(
site_configuration=order.site.siteconfiguration,
order_number=order.number,
username=order.user.username,
journal_uuid=journal_uuid)
line.set_status(LINE.COMPLETE)
audit_log(
'line_fulfilled',
order_line_id=line.id,
order_number=order.number,
product_class=line.product.get_product_class().name,
user_id=order.user.id,
journal_uuid=journal_uuid,
)
except (Timeout, ConnectionError):
logger.exception(
'Unable to fulfill line [%d] of order [%s] due to a network problem',
line.id, order.number)
line.set_status(LINE.FULFILLMENT_NETWORK_ERROR)
except Exception: # pylint: disable=broad-except
logger.exception('Unable to fulfill line [%d] of order [%s]',
line.id, order.number)
line.set_status(LINE.FULFILLMENT_SERVER_ERROR)
logger.info(
'Finished fulfilling "Journal" product types for order [%s]',
order.number)
return order, lines
def create_with_lines(cls, order, lines):
"""Given an order and order lines, creates a Refund with corresponding RefundLines.
Only creates RefundLines for unrefunded order lines. Refunds corresponding to a total
credit of $0 are approved upon creation.
Arguments:
order (order.Order): The order to which the newly-created refund corresponds.
lines (list of order.Line): Order lines to be refunded.
Returns:
None: If no unrefunded order lines have been provided.
Refund: With RefundLines corresponding to each given unrefunded order line.
"""
unrefunded_lines = [
line for line in lines if not line.refund_lines.exclude(
status=REFUND_LINE.DENIED).exists()
]
if not unrefunded_lines:
return None
status = getattr(settings, 'OSCAR_INITIAL_REFUND_STATUS', REFUND.OPEN)
total_credit_excl_tax = sum(
[line.line_price_excl_tax for line in unrefunded_lines])
refund = cls.objects.create(
order=order,
user=order.user,
status=status,
total_credit_excl_tax=total_credit_excl_tax)
audit_log('refund_created',
amount=total_credit_excl_tax,
currency=refund.currency,
order_number=order.number,
refund_id=refund.id,
user_id=refund.user.id)
status = getattr(settings, 'OSCAR_INITIAL_REFUND_LINE_STATUS',
REFUND_LINE.OPEN)
for line in unrefunded_lines:
RefundLine.objects.create(
refund=refund,
order_line=line,
line_credit_excl_tax=line.line_price_excl_tax,
quantity=line.quantity,
status=status)
if total_credit_excl_tax == 0:
refund.approve()
return refund
def handle_successful_order(self, order):
"""Send a signal so that receivers can perform relevant tasks (e.g., fulfill the order)."""
audit_log(
'order_placed',
amount=order.total_excl_tax,
basket_id=order.basket.id,
currency=order.currency,
order_number=order.number,
user_id=order.user.id
)
post_checkout.send_robust(sender=self, order=order)
return order
def revoke_line(self, line):
try:
logger.info('Attempting to revoke fulfillment of Line [%d]...',
line.id)
mode = mode_for_product(line.product)
course_key = line.product.attr.course_key
data = {
'user': line.order.user.username,
'is_active': False,
'mode': mode,
'course_details': {
'course_id': course_key,
},
}
response = self._post_to_enrollment_api(data,
user=line.order.user,
usage='revoke enrollment')
if response.status_code == status.HTTP_200_OK:
audit_log('line_revoked',
order_line_id=line.id,
order_number=line.order.number,
product_class=line.product.get_product_class().name,
course_id=course_key,
certificate_type=getattr(line.product.attr,
'certificate_type', ''),
user_id=line.order.user.id)
return True
else:
# check if the error / message are something we can recover from.
data = response.json()
detail = data.get('message', '(No details provided.)')
if response.status_code == 400 and "Enrollment mode mismatch" in detail:
# The user is currently enrolled in different mode than the one
# we are refunding an order for. Don't revoke that enrollment.
logger.info('Skipping revocation for line [%d]: %s',
line.id, detail)
return True
else:
logger.error(
'Failed to revoke fulfillment of Line [%d]: %s',
line.id, detail)
except Exception: # pylint: disable=broad-except
logger.exception('Failed to revoke fulfillment of Line [%d].',
line.id)
return False
def create_with_lines(cls, order, lines):
"""Given an order and order lines, creates a Refund with corresponding RefundLines.
Only creates RefundLines for unrefunded order lines. Refunds corresponding to a total
credit of $0 are approved upon creation.
Arguments:
order (order.Order): The order to which the newly-created refund corresponds.
lines (list of order.Line): Order lines to be refunded.
Returns:
None: If no unrefunded order lines have been provided.
Refund: With RefundLines corresponding to each given unrefunded order line.
"""
unrefunded_lines = [line for line in lines if not line.refund_lines.exclude(status=REFUND_LINE.DENIED).exists()]
if unrefunded_lines:
status = getattr(settings, 'OSCAR_INITIAL_REFUND_STATUS', REFUND.OPEN)
total_credit_excl_tax = sum([line.line_price_excl_tax for line in unrefunded_lines])
refund = cls.objects.create(
order=order,
user=order.user,
status=status,
total_credit_excl_tax=total_credit_excl_tax
)
audit_log(
'refund_created',
amount=total_credit_excl_tax,
currency=refund.currency,
order_number=order.number,
refund_id=refund.id,
user_id=refund.user.id
)
status = getattr(settings, 'OSCAR_INITIAL_REFUND_LINE_STATUS', REFUND_LINE.OPEN)
for line in unrefunded_lines:
RefundLine.objects.create(
refund=refund,
order_line=line,
line_credit_excl_tax=line.line_price_excl_tax,
quantity=line.quantity,
status=status
)
if total_credit_excl_tax == 0:
refund.approve(notify_purchaser=False)
return refund
def _checkout(self, basket, payment_processor, request=None):
"""Perform checkout operations for the given basket.
If the contents of the basket are free, places an order immediately. Otherwise,
performs any operations necessary to prepare for payment.
To prevent stale items from ending up in a basket at checkout, baskets should
always be frozen during checkout. Baskets with a status of 'Frozen' or 'Submitted'
are not retrieved when fetching a basket for the user.
Arguments:
basket (Basket): The basket on which to perform checkout operations.
payment_processor (class): An instance of the payment processor class corresponding
to the payment processor the user will visit to pay for the items in their basket.
Returns:
dict: Response data.
"""
basket.freeze()
audit_log(
'basket_frozen',
amount=basket.total_excl_tax,
basket_id=basket.id,
currency=basket.currency,
user_id=basket.owner.id
)
response_data = self._generate_basic_response(basket)
if basket.total_excl_tax == 0:
order = self.place_free_order(basket, request)
# Note: Our order serializer could be used here, but in an effort to pare down the information
# returned by this endpoint, simply returning the order number will suffice for now.
response_data['order'] = {'number': order.number}
else:
parameters = payment_processor.get_transaction_parameters(basket, request=self.request)
payment_page_url = parameters.pop('payment_page_url')
response_data['payment_data'] = {
'payment_processor_name': payment_processor.NAME,
'payment_form_data': parameters,
'payment_page_url': payment_page_url,
}
return response_data
def _checkout(self, basket, payment_processor):
"""Perform checkout operations for the given basket.
If the contents of the basket are free, places an order immediately. Otherwise,
performs any operations necessary to prepare for payment.
To prevent stale items from ending up in a basket at checkout, baskets should
always be frozen during checkout. Baskets with a status of 'Frozen' or 'Submitted'
are not retrieved when fetching a basket for the user.
Arguments:
basket (Basket): The basket on which to perform checkout operations.
payment_processor (class): An instance of the payment processor class corresponding
to the payment processor the user will visit to pay for the items in their basket.
Returns:
dict: Response data.
"""
basket.freeze()
audit_log(
'basket_frozen',
amount=basket.total_excl_tax,
basket_id=basket.id,
currency=basket.currency,
user_id=basket.owner.id
)
response_data = self._generate_basic_response(basket)
if basket.total_excl_tax == AC.FREE:
order = self.place_free_order(basket)
# Note: Our order serializer could be used here, but in an effort to pare down the information
# returned by this endpoint, simply returning the order number will suffice for now.
response_data[AC.KEYS.ORDER] = {AC.KEYS.ORDER_NUMBER: order.number}
else:
parameters = payment_processor.get_transaction_parameters(basket, request=self.request)
payment_page_url = parameters.pop('payment_page_url')
response_data[AC.KEYS.PAYMENT_DATA] = {
AC.KEYS.PAYMENT_PROCESSOR_NAME: payment_processor.NAME,
AC.KEYS.PAYMENT_FORM_DATA: parameters,
AC.KEYS.PAYMENT_PAGE_URL: payment_page_url,
}
return response_data
def revoke_line(self, line):
try:
logger.info('Attempting to revoke fulfillment of Line [%d]...', line.id)
mode = mode_for_seat(line.product)
course_key = line.product.attr.course_key
data = {
'user': line.order.user.username,
'is_active': False,
'mode': mode,
'course_details': {
'course_id': course_key,
},
}
__, client_id = parse_tracking_context(line.order.user)
response = self._post_to_enrollment_api(data, client_id=client_id)
if response.status_code == status.HTTP_200_OK:
audit_log(
'line_revoked',
order_line_id=line.id,
order_number=line.order.number,
product_class=line.product.get_product_class().name,
course_id=course_key,
certificate_type=getattr(line.product.attr, 'certificate_type', ''),
user_id=line.order.user.id
)
return True
else:
# check if the error / message are something we can recover from.
data = response.json()
detail = data.get('message', '(No details provided.)')
if response.status_code == 400 and "Enrollment mode mismatch" in detail:
# The user is currently enrolled in different mode than the one
# we are refunding an order for. Don't revoke that enrollment.
logger.info('Skipping revocation for line [%d]: %s', line.id, detail)
return True
else:
logger.error('Failed to revoke fulfillment of Line [%d]: %s', line.id, detail)
except Exception: # pylint: disable=broad-except
logger.exception('Failed to revoke fulfillment of Line [%d].', line.id)
return False
def handle_successful_order(self, order, request=None): # pylint: disable=arguments-differ
"""
Fulfill the order immediately.
"""
for line in order.lines.all():
line.set_status(LINE.COMPLETE)
order.set_status(ORDER.COMPLETE)
audit_log('manual_order_fulfilled',
amount=order.total_excl_tax,
basket_id=order.basket.id,
currency=order.currency,
order_number=order.number,
user_id=order.user.id,
contains_coupon=order.contains_coupon)
return order
def _issue_credit(self):
"""Issue a credit to the purchaser via the payment processor used for the original order."""
try:
# TODO Update this if we ever support multiple payment sources for a single order.
source = self.order.sources.first()
processor = get_processor_class_by_name(source.source_type.name)()
processor.issue_credit(source, self.total_credit_excl_tax,
self.currency)
audit_log('credit_issued',
amount=self.total_credit_excl_tax,
currency=self.currency,
processor_name=processor.NAME,
refund_id=self.id,
user_id=self.user.id)
except AttributeError:
# Order has no sources, resulting in an exception when trying to access `source_type`.
# This occurs when attempting to refund free orders.
logger.info("No payments to credit for Refund [%d]", self.id)
def handle_successful_order(self, order):
"""Send a signal so that receivers can perform relevant tasks (e.g., fulfill the order)."""
audit_log('order_placed',
amount=order.total_excl_tax,
basket_id=order.basket.id,
currency=order.currency,
order_number=order.number,
user_id=order.user.id)
if waffle.switch_is_active('async_order_fulfillment'):
# Always commit transactions before sending tasks depending on state from the current transaction!
# There's potential for a race condition here if the task starts executing before the active
# transaction has been committed; the necessary order doesn't exist in the database yet.
# See http://celery.readthedocs.org/en/latest/userguide/tasks.html#database-transactions.
fulfill_order.delay(order.number)
else:
post_checkout.send(sender=self, order=order)
return order
def handle_successful_order(self, order, request=None): # pylint: disable=arguments-differ
"""Send a signal so that receivers can perform relevant tasks (e.g., fulfill the order)."""
audit_log('order_placed',
amount=order.total_excl_tax,
basket_id=order.basket.id,
currency=order.currency,
order_number=order.number,
user_id=order.user.id,
contains_coupon=order.contains_coupon)
# Check for the user's email opt in preference, defaulting to false if it hasn't been set
try:
email_opt_in = BasketAttribute.objects.get(
basket=order.basket,
attribute_type=BasketAttributeType.objects.get(
name=EMAIL_OPT_IN_ATTRIBUTE),
).value_text == 'True'
except BasketAttribute.DoesNotExist:
email_opt_in = False
# create offer assignment for MULTI_USE_PER_CUSTOMER
self.create_assignments_for_multi_use_per_customer(order)
# update offer assignment with voucher application
self.update_assigned_voucher_offer_assignment(order)
if waffle.sample_is_active('async_order_fulfillment'):
# Always commit transactions before sending tasks depending on state from the current transaction!
# There's potential for a race condition here if the task starts executing before the active
# transaction has been committed; the necessary order doesn't exist in the database yet.
# See http://celery.readthedocs.org/en/latest/userguide/tasks.html#database-transactions.
fulfill_order.delay(
order.number,
site_code=order.site.siteconfiguration.partner.short_code,
email_opt_in=email_opt_in)
else:
post_checkout.send(sender=self,
order=order,
request=request,
email_opt_in=email_opt_in)
return order
def _issue_credit(self):
"""Issue a credit to the purchaser via the payment processor used for the original order."""
try:
# TODO Update this if we ever support multiple payment sources for a single order.
source = self.order.sources.first()
processor = get_processor_class_by_name(source.source_type.name)()
processor.issue_credit(source, self.total_credit_excl_tax, self.currency)
audit_log(
'credit_issued',
amount=self.total_credit_excl_tax,
currency=self.currency,
processor_name=processor.NAME,
refund_id=self.id,
user_id=self.user.id
)
except AttributeError:
# Order has no sources, resulting in an exception when trying to access `source_type`.
# This occurs when attempting to refund free orders.
logger.info("No payments to credit for Refund [%d]", self.id)
def handle_successful_order(self, order):
"""Send a signal so that receivers can perform relevant tasks (e.g., fulfill the order)."""
audit_log(
'order_placed',
amount=order.total_excl_tax,
basket_id=order.basket.id,
currency=order.currency,
order_number=order.number,
user_id=order.user.id
)
if waffle.sample_is_active('async_order_fulfillment'):
# Always commit transactions before sending tasks depending on state from the current transaction!
# There's potential for a race condition here if the task starts executing before the active
# transaction has been committed; the necessary order doesn't exist in the database yet.
# See http://celery.readthedocs.org/en/latest/userguide/tasks.html#database-transactions.
fulfill_order.delay(order.number)
else:
post_checkout.send(sender=self, order=order)
return order
def handle_payment(self, response, basket):
"""
Handle any payment processing and record payment sources and events.
This method is responsible for handling payment and recording the
payment sources (using the add_payment_source method) and payment
events (using add_payment_event) so they can be
linked to the order when it is saved later on.
"""
handled_processor_response = self.payment_processor.handle_processor_response(response, basket=basket)
source_type, __ = SourceType.objects.get_or_create(name=self.payment_processor.NAME)
total = handled_processor_response.total
reference = handled_processor_response.transaction_id
source = Source(
source_type=source_type,
currency=handled_processor_response.currency,
amount_allocated=total,
amount_debited=total,
reference=reference,
label=handled_processor_response.card_number,
card_type=handled_processor_response.card_type
)
event_type, __ = PaymentEventType.objects.get_or_create(name=PaymentEventTypeName.PAID)
payment_event = PaymentEvent(event_type=event_type, amount=total, reference=reference,
processor_name=self.payment_processor.NAME)
self.add_payment_source(source)
self.add_payment_event(payment_event)
audit_log(
'payment_received',
amount=payment_event.amount,
basket_id=basket.id,
currency=source.currency,
processor_name=payment_event.processor_name,
reference=payment_event.reference,
user_id=basket.owner.id
)
def handle_payment(self, response, basket):
"""
Handle any payment processing and record payment sources and events.
This method is responsible for handling payment and recording the
payment sources (using the add_payment_source method) and payment
events (using add_payment_event) so they can be
linked to the order when it is saved later on.
"""
handled_processor_response = self.payment_processor.handle_processor_response(response, basket=basket)
source_type, __ = SourceType.objects.get_or_create(name=self.payment_processor.NAME)
total = handled_processor_response.total
reference = handled_processor_response.transaction_id
source = Source(
source_type=source_type,
currency=handled_processor_response.currency,
amount_allocated=total,
amount_debited=total,
reference=reference,
label=handled_processor_response.card_number,
card_type=handled_processor_response.card_type
)
event_type, __ = PaymentEventType.objects.get_or_create(name=PaymentEventTypeName.PAID)
payment_event = PaymentEvent(event_type=event_type, amount=total, reference=reference,
processor_name=self.payment_processor.NAME)
self.add_payment_source(source)
self.add_payment_event(payment_event)
audit_log(
'payment_received',
amount=payment_event.amount,
basket_id=basket.id,
currency=source.currency,
processor_name=payment_event.processor_name,
reference=payment_event.reference,
user_id=basket.owner.id
)
def handle_payment(self, response, basket):
"""
Handle any payment processing and record payment sources and events.
This method is responsible for handling payment and recording the
payment sources (using the add_payment_source method) and payment
events (using add_payment_event) so they can be
linked to the order when it is saved later on.
"""
source, payment_event = self.payment_processor.handle_processor_response(
response, basket=basket)
self.add_payment_source(source)
self.add_payment_event(payment_event)
audit_log('payment_received',
amount=payment_event.amount,
basket_id=basket.id,
currency=source.currency,
processor_name=payment_event.processor_name,
reference=payment_event.reference,
user_id=basket.owner.id)
def handle_payment(self, response, basket):
"""
Handle any payment processing and record payment sources and events.
This method is responsible for handling payment and recording the
payment sources (using the add_payment_source method) and payment
events (using add_payment_event) so they can be
linked to the order when it is saved later on.
"""
source, payment_event = self.payment_processor.handle_processor_response(response, basket=basket)
self.add_payment_source(source)
self.add_payment_event(payment_event)
audit_log(
'payment_received',
amount=payment_event.amount,
basket_id=basket.id,
currency=source.currency,
processor_name=payment_event.processor_name,
reference=payment_event.reference,
user_id=basket.owner.id
)
def fulfill_product(self, order, lines):
""" Fulfills the purchase of a 'Course Entitlement'.
Uses the order and the lines to determine which courses to grant an entitlement for, and with certain
certificate types. May result in an error if the Entitlement API cannot be reached, or if there is
additional business logic errors when trying grant the entitlement.
Args:
order (Order): The Order associated with the lines to be fulfilled. The user associated with the order
is presumed to be the student to grant an entitlement.
lines (List of Lines): Order Lines, associated with purchased products in an Order. These should only
be "Course Entitlement" products.
Returns:
The original set of lines, with new statuses set based on the success or failure of fulfillment.
"""
logger.info('Attempting to fulfill "Course Entitlement" product types for order [%s]', order.number)
for line in lines:
try:
mode = mode_for_product(line.product)
UUID = line.product.attr.UUID
except AttributeError:
logger.error('Entitlement Product does not have required attributes, [certificate_type, UUID]')
line.set_status(LINE.FULFILLMENT_CONFIGURATION_ERROR)
continue
data = {
'user': order.user.username,
'course_uuid': UUID,
'mode': mode,
'order_number': order.number,
}
try:
entitlement_option = Option.objects.get(code='course_entitlement')
entitlement_api_client = EdxRestApiClient(
get_lms_entitlement_api_url(),
jwt=order.site.siteconfiguration.access_token
)
# POST to the Entitlement API.
response = entitlement_api_client.entitlements.post(data)
line.attributes.create(option=entitlement_option, value=response['uuid'])
line.set_status(LINE.COMPLETE)
audit_log(
'line_fulfilled',
order_line_id=line.id,
order_number=order.number,
product_class=line.product.get_product_class().name,
UUID=UUID,
mode=mode,
user_id=order.user.id,
)
except (Timeout, ConnectionError):
logger.exception(
'Unable to fulfill line [%d] of order [%s] due to a network problem', line.id, order.number
)
line.set_status(LINE.FULFILLMENT_NETWORK_ERROR)
except Exception: # pylint: disable=broad-except
logger.exception(
'Unable to fulfill line [%d] of order [%s]', line.id, order.number
)
line.set_status(LINE.FULFILLMENT_SERVER_ERROR)
logger.info('Finished fulfilling "Course Entitlement" product types for order [%s]', order.number)
return order, lines
def fulfill_product(self, order, lines):
""" Fulfills the purchase of a 'seat' by enrolling the associated student.
Uses the order and the lines to determine which courses to enroll a student in, and with certain
certificate types. May result in an error if the Enrollment API cannot be reached, or if there is
additional business logic errors when trying to enroll the student.
Args:
order (Order): The Order associated with the lines to be fulfilled. The user associated with the order
is presumed to be the student to enroll in a course.
lines (List of Lines): Order Lines, associated with purchased products in an Order. These should only
be "Seat" products.
Returns:
The original set of lines, with new statuses set based on the success or failure of fulfillment.
"""
logger.info("Attempting to fulfill 'Seat' product types for order [%s]", order.number)
api_key = getattr(settings, 'EDX_API_KEY', None)
if not api_key:
logger.error(
'EDX_API_KEY must be set to use the EnrollmentFulfillmentModule'
)
for line in lines:
line.set_status(LINE.FULFILLMENT_CONFIGURATION_ERROR)
return order, lines
for line in lines:
try:
mode = mode_for_product(line.product)
course_key = line.product.attr.course_key
except AttributeError:
logger.error("Supported Seat Product does not have required attributes, [certificate_type, course_key]")
line.set_status(LINE.FULFILLMENT_CONFIGURATION_ERROR)
continue
try:
provider = line.product.attr.credit_provider
except AttributeError:
logger.debug("Seat [%d] has no credit_provider attribute. Defaulted to None.", line.product.id)
provider = None
data = {
'user': order.user.username,
'is_active': True,
'mode': mode,
'course_details': {
'course_id': course_key
},
'enrollment_attributes': [
{
'namespace': 'order',
'name': 'order_number',
'value': order.number
}
]
}
if provider:
data['enrollment_attributes'].append(
{
'namespace': 'credit',
'name': 'provider_id',
'value': provider
}
)
try:
self._add_enterprise_data_to_enrollment_api_post(data, order)
# Post to the Enrollment API. The LMS will take care of posting a new EnterpriseCourseEnrollment to
# the Enterprise service if the user+course has a corresponding EnterpriseCustomerUser.
response = self._post_to_enrollment_api(data, user=order.user)
if response.status_code == status.HTTP_200_OK:
line.set_status(LINE.COMPLETE)
audit_log(
'line_fulfilled',
order_line_id=line.id,
order_number=order.number,
product_class=line.product.get_product_class().name,
course_id=course_key,
mode=mode,
user_id=order.user.id,
credit_provider=provider,
)
else:
try:
data = response.json()
reason = data.get('message')
except Exception: # pylint: disable=broad-except
reason = '(No detail provided.)'
logger.error(
"Fulfillment of line [%d] on order [%s] failed with status code [%d]: %s",
line.id, order.number, response.status_code, reason
)
line.set_status(LINE.FULFILLMENT_SERVER_ERROR)
except ConnectionError:
logger.error(
"Unable to fulfill line [%d] of order [%s] due to a network problem", line.id, order.number
)
line.set_status(LINE.FULFILLMENT_NETWORK_ERROR)
except Timeout:
logger.error(
"Unable to fulfill line [%d] of order [%s] due to a request time out", line.id, order.number
)
line.set_status(LINE.FULFILLMENT_TIMEOUT_ERROR)
logger.info("Finished fulfilling 'Seat' product types for order [%s]", order.number)
return order, lines
def _checkout(self, basket, payment_processor):
"""Perform checkout operations for the given basket.
If the contents of the basket are free, places an order immediately. Otherwise,
performs any operations necessary to prepare for payment.
To prevent stale items from ending up in a basket at checkout, baskets should
always be frozen during checkout. Baskets with a status of 'Frozen' or 'Submitted'
are not retrieved when fetching a basket for the user.
Arguments:
basket (Basket): The basket on which to perform checkout operations.
payment_processor (class): An instance of the payment processor class corresponding
to the payment processor the user will visit to pay for the items in their basket.
Returns:
dict: Response data.
"""
basket.freeze()
audit_log(
'basket_frozen',
amount=basket.total_excl_tax,
basket_id=basket.id,
currency=basket.currency,
user_id=basket.owner.id
)
response_data = self._generate_basic_response(basket)
if basket.total_excl_tax == AC.FREE:
order_metadata = data_api.get_order_metadata(basket)
logger.info(
'Preparing to place order [%s] for the contents of basket [%d]',
order_metadata[AC.KEYS.ORDER_NUMBER],
basket.id,
)
# Place an order. If order placement succeeds, the order is committed
# to the database so that it can be fulfilled asynchronously.
order = self.handle_order_placement(
order_number=order_metadata[AC.KEYS.ORDER_NUMBER],
user=basket.owner,
basket=basket,
shipping_address=None,
shipping_method=order_metadata[AC.KEYS.SHIPPING_METHOD],
shipping_charge=order_metadata[AC.KEYS.SHIPPING_CHARGE],
billing_address=None,
order_total=order_metadata[AC.KEYS.ORDER_TOTAL],
)
# Note: Our order serializer could be used here, but in an effort to pare down the information
# returned by this endpoint, simply returning the order number will suffice for now.
response_data[AC.KEYS.ORDER] = {AC.KEYS.ORDER_NUMBER: order.number}
else:
parameters = payment_processor.get_transaction_parameters(basket, request=self.request)
payment_page_url = parameters.pop('payment_page_url')
response_data[AC.KEYS.PAYMENT_DATA] = {
AC.KEYS.PAYMENT_PROCESSOR_NAME: payment_processor.NAME,
AC.KEYS.PAYMENT_FORM_DATA: parameters,
AC.KEYS.PAYMENT_PAGE_URL: payment_page_url,
}
return response_data
def fulfill_product(self, order, lines):
""" Fulfills the purchase of a 'seat' by enrolling the associated student.
Uses the order and the lines to determine which courses to enroll a student in, and with certain
certificate types. May result in an error if the Enrollment API cannot be reached, or if there is
additional business logic errors when trying to enroll the student.
Args:
order (Order): The Order associated with the lines to be fulfilled. The user associated with the order
is presumed to be the student to enroll in a course.
lines (List of Lines): Order Lines, associated with purchased products in an Order. These should only
be "Seat" products.
Returns:
The original set of lines, with new statuses set based on the success or failure of fulfillment.
"""
logger.info("Attempting to fulfill 'Seat' product types for order [%s]", order.number)
enrollment_api_url = getattr(settings, 'ENROLLMENT_API_URL', None)
api_key = getattr(settings, 'EDX_API_KEY', None)
if not (enrollment_api_url and api_key):
logger.error(
'ENROLLMENT_API_URL and EDX_API_KEY must be set to use the EnrollmentFulfillmentModule'
)
for line in lines:
line.set_status(LINE.FULFILLMENT_CONFIGURATION_ERROR)
return order, lines
for line in lines:
try:
mode = mode_for_seat(line.product)
course_key = line.product.attr.course_key
except AttributeError:
logger.error("Supported Seat Product does not have required attributes, [certificate_type, course_key]")
line.set_status(LINE.FULFILLMENT_CONFIGURATION_ERROR)
continue
try:
provider = line.product.attr.credit_provider
except AttributeError:
logger.debug("Seat [%d] has no credit_provider attribute. Defaulted to None.", line.product.id)
provider = None
data = {
'user': order.user.username,
'is_active': True,
'mode': mode,
'course_details': {
'course_id': course_key
},
'enrollment_attributes': []
}
if provider:
data['enrollment_attributes'].append(
{
'namespace': 'credit',
'name': 'provider_id',
'value': provider
}
)
try:
response = self._post_to_enrollment_api(data, user=order.user)
if response.status_code == status.HTTP_200_OK:
line.set_status(LINE.COMPLETE)
audit_log(
'line_fulfilled',
order_line_id=line.id,
order_number=order.number,
product_class=line.product.get_product_class().name,
course_id=course_key,
mode=mode,
user_id=order.user.id,
credit_provider=provider,
)
else:
try:
data = response.json()
reason = data.get('message')
except Exception: # pylint: disable=broad-except
reason = '(No detail provided.)'
logger.error(
"Unable to fulfill line [%d] of order [%s] due to a server-side error: %s", line.id,
order.number, reason
)
line.set_status(LINE.FULFILLMENT_SERVER_ERROR)
except ConnectionError:
logger.error(
"Unable to fulfill line [%d] of order [%s] due to a network problem", line.id, order.number
)
line.set_status(LINE.FULFILLMENT_NETWORK_ERROR)
except Timeout:
logger.error(
"Unable to fulfill line [%d] of order [%s] due to a request time out", line.id, order.number
)
line.set_status(LINE.FULFILLMENT_TIMEOUT_ERROR)
logger.info("Finished fulfilling 'Seat' product types for order [%s]", order.number)
return order, lines
def fulfill_product(self, order, lines, email_opt_in=False):
""" Fulfills the purchase of a 'Course Entitlement'.
Uses the order and the lines to determine which courses to grant an entitlement for, and with certain
certificate types. May result in an error if the Entitlement API cannot be reached, or if there is
additional business logic errors when trying grant the entitlement.
Updates the user's email preferences based on email_opt_in as a side effect.
Args:
order (Order): The Order associated with the lines to be fulfilled. The user associated with the order
is presumed to be the student to grant an entitlement.
lines (List of Lines): Order Lines, associated with purchased products in an Order. These should only
be "Course Entitlement" products.
email_opt_in (bool): Whether the user should be opted in to emails
as part of the fulfillment. Defaults to False.
Returns:
The original set of lines, with new statuses set based on the success or failure of fulfillment.
"""
logger.info(
'Attempting to fulfill "Course Entitlement" product types for order [%s]',
order.number)
for line in lines:
try:
mode = mode_for_product(line.product)
UUID = line.product.attr.UUID
except AttributeError:
logger.error(
'Entitlement Product does not have required attributes, [certificate_type, UUID]'
)
line.set_status(LINE.FULFILLMENT_CONFIGURATION_ERROR)
continue
data = {
'user': order.user.username,
'course_uuid': UUID,
'mode': mode,
'order_number': order.number,
'email_opt_in': email_opt_in,
}
try:
self._create_enterprise_customer_user(order)
self.update_orderline_with_enterprise_discount_metadata(
order, line)
entitlement_option = Option.objects.get(
code='course_entitlement')
api_client = line.order.site.siteconfiguration.oauth_api_client
entitlement_url = urljoin(get_lms_entitlement_api_url(),
'entitlements/')
# POST to the Entitlement API.
response = api_client.post(entitlement_url, json=data)
response.raise_for_status()
response = response.json()
line.attributes.create(option=entitlement_option,
value=response['uuid'])
line.set_status(LINE.COMPLETE)
audit_log(
'line_fulfilled',
order_line_id=line.id,
order_number=order.number,
product_class=line.product.get_product_class().name,
UUID=UUID,
mode=mode,
user_id=order.user.id,
)
except (Timeout, ReqConnectionError):
logger.exception(
'Unable to fulfill line [%d] of order [%s] due to a network problem',
line.id, order.number)
order.notes.create(
message=
'Fulfillment of order failed due to a network problem.',
note_type='Error')
line.set_status(LINE.FULFILLMENT_NETWORK_ERROR)
except Exception: # pylint: disable=broad-except
logger.exception('Unable to fulfill line [%d] of order [%s]',
line.id, order.number)
order.notes.create(
message='Fulfillment of order failed due to an Exception.',
note_type='Error')
line.set_status(LINE.FULFILLMENT_SERVER_ERROR)
logger.info(
'Finished fulfilling "Course Entitlement" product types for order [%s]',
order.number)
return order, lines
def _checkout(self, basket, payment_processor):
"""Perform checkout operations for the given basket.
If the contents of the basket are free, places an order immediately. Otherwise,
performs any operations necessary to prepare for payment.
To prevent stale items from ending up in a basket at checkout, baskets should
always be frozen during checkout. Baskets with a status of 'Frozen' or 'Submitted'
are not retrieved when fetching a basket for the user.
Arguments:
basket (Basket): The basket on which to perform checkout operations.
payment_processor (class): An instance of the payment processor class corresponding
to the payment processor the user will visit to pay for the items in their basket.
Returns:
dict: Response data.
"""
basket.freeze()
audit_log(
'basket_frozen',
amount=basket.total_excl_tax,
basket_id=basket.id,
currency=basket.currency,
user_id=basket.owner.id
)
response_data = self._generate_basic_response(basket)
if basket.total_excl_tax == AC.FREE:
order_metadata = data_api.get_order_metadata(basket)
logger.info(
u"Preparing to place order [%s] for the contents of basket [%d]",
order_metadata[AC.KEYS.ORDER_NUMBER],
basket.id,
)
# Place an order. If order placement succeeds, the order is committed
# to the database so that it can be fulfilled asynchronously.
order = self.handle_order_placement(
order_number=order_metadata[AC.KEYS.ORDER_NUMBER],
user=basket.owner,
basket=basket,
shipping_address=None,
shipping_method=order_metadata[AC.KEYS.SHIPPING_METHOD],
shipping_charge=order_metadata[AC.KEYS.SHIPPING_CHARGE],
billing_address=None,
order_total=order_metadata[AC.KEYS.ORDER_TOTAL],
)
# Note: Our order serializer could be used here, but in an effort to pare down the information
# returned by this endpoint, simply returning the order number will suffice for now.
response_data[AC.KEYS.ORDER] = {AC.KEYS.ORDER_NUMBER: order.number}
else:
parameters = payment_processor.get_transaction_parameters(basket, request=self.request)
payment_page_url = parameters.pop('payment_page_url')
response_data[AC.KEYS.PAYMENT_DATA] = {
AC.KEYS.PAYMENT_PROCESSOR_NAME: payment_processor.NAME,
AC.KEYS.PAYMENT_FORM_DATA: parameters,
AC.KEYS.PAYMENT_PAGE_URL: payment_page_url,
}
return response_data