def assertPrefValid(self, user):
"""Ensure that the correct preference for the user is persisted"""
pref = UserPreference.objects.get(user=user, key=NOTIFICATION_PREF_KEY)
self.assertTrue(pref) # check exists and only 1 (.get)
# now coerce username to utf-8 encoded str, since we test with non-ascii unicdoe above and
# the unittest framework has hard time coercing to unicode.
# decrypt also can't take a unicode input, so coerce its input to str
self.assertEqual(six.binary_type(user.username.encode('utf-8')), UsernameCipher().decrypt(str(pref.value)))
def opt_out_email_updates(request, token, course_id):
"""
A view that let users opt out of any email updates.
This meant is meant to be the target of an opt-out link or button.
The `token` parameter must decrypt to a valid username.
The `course_id` is the string course key of any course.
Raises a 404 if there are any errors parsing the input.
"""
try:
username = UsernameCipher().decrypt(token.encode())
user = User.objects.get(username=username)
course_key = CourseKey.from_string(course_id)
course = get_course_by_id(course_key, depth=0)
except UnicodeDecodeError:
raise Http404("base64url")
except UsernameDecryptionException as exn:
raise Http404(text_type(exn))
except User.DoesNotExist:
raise Http404("username")
except InvalidKeyError:
raise Http404("course")
context = {
'course': course,
'cancelled': False,
'confirmed': False,
}
if request.method == 'POST':
if request.POST.get('submit') == 'confirm':
Optout.objects.get_or_create(user=user, course_id=course.id)
log.info(
u"User %s (%s) opted out of receiving emails from course %s",
user.username,
user.email,
course_id,
)
context['confirmed'] = True
else:
context['cancelled'] = True
return render_to_response('bulk_email/unsubscribe.html', context)
def opt_out_email_updates(request, token, course_id):
"""
A view that let users opt out of any email updates.
This meant is meant to be the target of an opt-out link or button.
The `token` parameter must decrypt to a valid username.
The `course_id` is the string course key of any course.
Raises a 404 if there are any errors parsing the input.
"""
try:
username = UsernameCipher().decrypt(token).decode("utf-8")
user = User.objects.get(username=username)
course_key = CourseKey.from_string(course_id)
course = get_course_by_id(course_key, depth=0)
except UnicodeDecodeError:
raise Http404("base64url") # lint-amnesty, pylint: disable=raise-missing-from
except UsernameDecryptionException as exn:
raise Http404(text_type(exn)) # lint-amnesty, pylint: disable=raise-missing-from
except User.DoesNotExist:
raise Http404("username") # lint-amnesty, pylint: disable=raise-missing-from
except InvalidKeyError:
raise Http404("course") # lint-amnesty, pylint: disable=raise-missing-from
unsub_check = request.POST.get('unsubscribe', False)
context = {
'course': course,
'unsubscribe': unsub_check
}
if request.method == 'GET':
return render_to_response('bulk_email/confirm_unsubscribe.html', context)
if request.method == 'POST' and unsub_check:
Optout.objects.get_or_create(user=user, course_id=course_key)
log.info(
u"User %s (%s) opted out of receiving emails from course %s",
user.username,
user.email,
course_id,
)
return render_to_response('bulk_email/unsubscribe_success.html', context)