def request_subscription(self, content, email):
# Send out request for subscription
# NOTE: no doc string, so, not *publishable* TTW
#
if not self.are_subscriptions_enabled():
raise errors.NotSubscribableError()
manager = ISubscriptionManager(content, None)
# see if content is subscribable
if manager is None or not manager.is_subscribable():
raise errors.NotSubscribableError()
# validate address
if not isValidMailAddress(email):
raise errors.InvalidEmailaddressError()
# check if not yet subscribed
subscription = manager.get_subscription(email)
if subscription is not None:
# send an email informing about this situation
self._send_confirmation(
content, subscription.content, email,
'already_subscribed_template', 'confirm_subscription')
raise errors.AlreadySubscribedError()
# send confirmation email to emailaddress
self._send_confirmation(
content, content, email,
'subscription_confirmation_template', 'confirm_subscription')
def request_cancellation(self, content, email):
# Send out request for cancellation of the subscription
# NOTE: no doc string, so, not *publishable* TTW
#
manager = ISubscriptionManager(content, None)
if manager is None:
raise errors.NotSubscribableError()
# validate address
if not isValidMailAddress(email):
raise errors.InvalidEmailaddressError()
# check if indeed subscribed
subscription = manager.get_subscription(email)
if subscription is None:
# send an email informing about this situation
self._send_information(content, email, 'not_subscribed_template')
raise errors.NotSubscribedError()
self._send_confirmation(
content, subscription.content, email,
'cancellation_confirmation_template', 'confirm_cancellation')
