from __future__ import division __copyright__ = "Copyright (C) 2017 Dong Zhuang" __license__ = """ Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. """ from django.test import TestCase from django.contrib import messages from course.auth import get_impersonable_user_qset from course.models import FlowPageVisit, ParticipationPermission from .base_test_mixins import ( SingleCoursePageTestMixin, TwoCourseTestMixin, FallBackStorageMessageTestMixin, TWO_COURSE_SETUP_LIST, NONE_PARTICIPATION_USER_CREATE_KWARG_LIST) NOT_IMPERSONATING_MESSAGE = "Not currently impersonating anyone." NO_LONGER_IMPERSONATING_MESSAGE = "No longer impersonating anyone." ALREADY_IMPERSONATING_SOMEONE_MESSAGE = "Already impersonating someone." ERROR_WHILE_IMPERSONATING_MESSAGE = "Error while impersonating." IMPERSONATE_FORM_ERROR_NOT_VALID_USER_MSG = ( "Select a valid choice. That choice is " "not one of the available choices.") class ImpersonateTest(SingleCoursePageTestMixin, FallBackStorageMessageTestMixin, TestCase): def test_impersonate_by_not_authenticated(self): with self.temporarily_switch_to_user(None): resp = self.get_impersonate() self.assertEqual(resp.status_code, 403) resp = self.post_impersonate( impersonatee=self.student_participation.user) self.assertEqual(resp.status_code, 403) resp = self.get_stop_impersonate() self.assertEqual(resp.status_code, 403) resp = self.post_stop_impersonate() self.assertEqual(resp.status_code, 403) def test_impersonate_by_student(self): user = self.student_participation.user impersonatable = get_impersonable_user_qset(user) self.assertEqual(impersonatable.count(), 0) with self.temporarily_switch_to_user(user): resp = self.get_impersonate() self.assertEqual(resp.status_code, 403) resp = self.post_impersonate( impersonatee=self.student_participation.user) self.assertEqual(resp.status_code, 403) resp = self.get_stop_impersonate() self.assertEqual(resp.status_code, 403) self.assertIsNone(self.c.session.get("impersonate_id")) resp = self.post_stop_impersonate() self.assertEqual(resp.status_code, 403) def test_impersonate_by_ta(self): user = self.ta_participation.user impersonatable = get_impersonable_user_qset(user) self.assertEqual(impersonatable.count(), 1) self.assertNotIn(self.instructor_participation.user, impersonatable) with self.temporarily_switch_to_user(user): resp = self.get_impersonate() self.assertEqual(resp.status_code, 200) resp = self.post_impersonate( impersonatee=self.student_participation.user) self.assertEqual(resp.status_code, 200) self.assertEqual(self.c.session["impersonate_id"], self.student_participation.user.pk) # re-impersonate without stop_impersonating resp = self.post_impersonate( impersonatee=self.student_participation.user) # because the request.user is the impernatee (student) # who has no pperm self.assertEqual(resp.status_code, 403) self.assertEqual(self.c.session["impersonate_id"], self.student_participation.user.pk) resp = self.get_stop_impersonate() self.assertEqual(resp.status_code, 200) # stop_impersonating resp = self.post_stop_impersonate() self.assertIsNone(self.c.session.get("impersonate_id")) self.assertResponseMessageLevelsEqual(resp, [messages.INFO]) self.assertResponseMessagesEqual(resp, NO_LONGER_IMPERSONATING_MESSAGE) # fail re-stop_impersonating resp = self.post_stop_impersonate() self.assertEqual(resp.status_code, 200) self.assertResponseMessageLevelsEqual(resp, [messages.ERROR]) self.assertResponseMessagesEqual(resp, NOT_IMPERSONATING_MESSAGE) # not allowed to impersonate instructor resp = self.post_impersonate( impersonatee=self.instructor_participation.user) self.assertEqual(resp.status_code, 200) self.assertFormError(resp, 'form', 'user', IMPERSONATE_FORM_ERROR_NOT_VALID_USER_MSG) self.assertIsNone(self.c.session.get("impersonate_id")) # not allowed to impersonate self resp = self.post_impersonate( impersonatee=user) self.assertEqual(resp.status_code, 200) self.assertFormError(resp, 'form', 'user', IMPERSONATE_FORM_ERROR_NOT_VALID_USER_MSG) self.assertIsNone(self.c.session.get("impersonate_id")) def test_impersonate_by_superuser(self): user = self.superuser impersonatable = get_impersonable_user_qset(user) self.assertEqual(impersonatable.count(), 3) with self.temporarily_switch_to_user(user): resp = self.post_impersonate( impersonatee=self.instructor_participation.user) self.assertEqual(resp.status_code, 200) self.assertEqual(self.c.session["impersonate_id"], self.instructor_participation.user.pk) def test_impersonate_by_instructor(self): user = self.instructor_participation.user impersonatable = get_impersonable_user_qset(user) self.assertEqual(impersonatable.count(), 2) with self.temporarily_switch_to_user(user): resp = self.get_impersonate() self.assertEqual(resp.status_code, 200) # first impersonate ta who has pperm resp = self.post_impersonate( impersonatee=self.ta_participation.user) self.assertEqual(resp.status_code, 200) self.assertEqual(self.c.session["impersonate_id"], self.ta_participation.user.pk) # then impersonate student without stop_impersonating, # this will fail resp = self.post_impersonate( impersonatee=self.student_participation.user) self.assertEqual(resp.status_code, 200) self.assertResponseMessageLevelsEqual(resp, [messages.ERROR]) self.assertResponseMessagesEqual( resp, ALREADY_IMPERSONATING_SOMEONE_MESSAGE) self.assertEqual(self.c.session["impersonate_id"], self.ta_participation.user.pk) resp = self.get_stop_impersonate() self.assertEqual(resp.status_code, 200) # stop_impersonating resp = self.post_stop_impersonate() self.assertEqual(resp.status_code, 200) self.assertResponseMessageLevelsEqual(resp, [messages.INFO]) self.assertResponseMessagesEqual(resp, NO_LONGER_IMPERSONATING_MESSAGE) # re-stop_impersonating resp = self.post_stop_impersonate() self.assertEqual(resp.status_code, 200) self.assertResponseMessageLevelsEqual(resp, [messages.ERROR]) self.assertResponseMessagesEqual(resp, NOT_IMPERSONATING_MESSAGE) def test_impersonate_error_none_user(self): with self.temporarily_switch_to_user(self.ta_participation.user): self.post_impersonate( impersonatee=self.student_participation.user) session = self.c.session session["impersonate_id"] = None session.save() resp = self.c.get(self.get_course_page_url()) self.assertEqual(resp.status_code, 200) self.assertResponseMessageLevelsEqual(resp, [messages.ERROR]) self.assertResponseMessagesEqual(resp, ERROR_WHILE_IMPERSONATING_MESSAGE) def test_impersonatee_error_none_existing_user(self): with self.temporarily_switch_to_user(self.ta_participation.user): self.post_impersonate( impersonatee=self.student_participation.user) session = self.c.session session["impersonate_id"] = 100 session.save() resp = self.c.get(self.get_course_page_url()) self.assertEqual(resp.status_code, 200) self.assertResponseMessageLevelsEqual(resp, [messages.ERROR]) self.assertResponseMessagesEqual(resp, ERROR_WHILE_IMPERSONATING_MESSAGE) def test_impersonate_error_no_impersonatable(self): with self.temporarily_switch_to_user(self.ta_participation.user): self.post_impersonate( impersonatee=self.student_participation.user) # drop the only impersonatable participation from course.constants import participation_status self.student_participation.status = participation_status.dropped self.student_participation.save() resp = self.c.get(self.get_course_page_url()) self.assertEqual(resp.status_code, 200) self.assertResponseMessageLevelsEqual(resp, [messages.ERROR]) self.assertResponseMessagesEqual(resp, ERROR_WHILE_IMPERSONATING_MESSAGE) def test_impersonator_flow_page_visit(self): with self.temporarily_switch_to_user(self.student_participation.user): self.start_flow("quiz-test") self.c.get(self.get_page_url_by_ordinal(page_ordinal=0)) self.assertEqual(FlowPageVisit.objects.count(), 1) first_visit = FlowPageVisit.objects.first() self.assertFalse(first_visit.is_impersonated()) self.assertIsNone(first_visit.impersonated_by) with self.temporarily_switch_to_user(self.ta_participation.user): resp = self.c.get(self.get_page_url_by_ordinal(page_ordinal=0)) self.assertEqual(resp.status_code, 200) self.assertEqual(FlowPageVisit.objects.count(), 2) second_visit = FlowPageVisit.objects.all().order_by('-pk')[0] # this visit is not impersonated self.assertFalse(second_visit.is_impersonated()) self.assertIsNone(second_visit.impersonated_by) # this visit is not impersonated self.post_impersonate(impersonatee=self.student_participation.user) resp = self.c.get(self.get_page_url_by_ordinal(page_ordinal=0)) self.assertEqual(resp.status_code, 200) self.assertEqual(FlowPageVisit.objects.count(), 3) second_visit = FlowPageVisit.objects.all().order_by('-pk')[0] self.assertTrue(second_visit.is_impersonated()) self.assertEqual(second_visit.impersonated_by, self.ta_participation.user) class CrossCourseImpersonateTest(TwoCourseTestMixin, FallBackStorageMessageTestMixin, TestCase): courses_setup_list = TWO_COURSE_SETUP_LIST none_participation_user_create_kwarg_list = ( NONE_PARTICIPATION_USER_CREATE_KWARG_LIST) @classmethod def setUpTestData(cls): # noqa super(CrossCourseImpersonateTest, cls).setUpTestData() cls.extra_participation_user1 = cls.non_participation_users[0] cls.create_participation(cls.course2, cls.extra_participation_user1) def test_impersonate_across_courses(self): user = self.course1_ta_participation.user self.assertEqual(self.course1_ta_participation.user, self.course2_ta_participation.user) impersonatable = get_impersonable_user_qset(user) # one is student_participation.user, another is extra_participation_user1 # in two courses self.assertEqual(impersonatable.count(), 2) def test_impersonate_across_courses_pperm_view_masked_profile_403(self): """ view_participant_masked_profile pperm will disable impersonating site-wise """ from course.constants import participation_permission as pperm pp = ParticipationPermission( participation=self.course1_ta_participation, permission=pperm.view_participant_masked_profile) pp.save() user = self.course1_ta_participation.user self.assertEqual(self.course1_ta_participation.user, self.course2_ta_participation.user) impersonatable = get_impersonable_user_qset(user) self.assertEqual(impersonatable.count(), 0) with self.temporarily_switch_to_user(user): resp = self.get_impersonate() self.assertEqual(resp.status_code, 403)