Don't hardcode https protocol in enrollment emails.

Use http or https, depending on the value of `request.is_secure()`.
That is how links in most other emails are handled.

lms/djangoapps/instructor/enrollment.py

@@ -223,7 +223,7 @@ def _reset_module_attempts(studentmodule):
     studentmodule.save()
 
 
-def get_email_params(course, auto_enroll):
+def get_email_params(course, auto_enroll, secure=True):
     """
     Generate parameters used when parsing email templates.
 
@@ -231,27 +231,32 @@ def get_email_params(course, auto_enroll):
     Returns a dict of parameters
     """
 
+    protocol = 'https' if secure else 'http'
+
     stripped_site_name = microsite.get_value(
         'SITE_NAME',
         settings.SITE_NAME
     )
-    # TODO: Use request.build_absolute_uri rather than 'https://{}{}'.format
+    # TODO: Use request.build_absolute_uri rather than '{proto}://{site}{path}'.format
     # and check with the Services team that this works well with microsites
-    registration_url = u'https://{}{}'.format(
-        stripped_site_name,
-        reverse('student.views.register_user')
+    registration_url = u'{proto}://{site}{path}'.format(
+        proto=protocol,
+        site=stripped_site_name,
+        path=reverse('student.views.register_user')
     )
-    course_url = u'https://{}{}'.format(
-        stripped_site_name,
-        reverse('course_root', kwargs={'course_id': course.id.to_deprecated_string()})
+    course_url = u'{proto}://{site}{path}'.format(
+        proto=protocol,
+        site=stripped_site_name,
+        path=reverse('course_root', kwargs={'course_id': course.id.to_deprecated_string()})
     )
 
     # We can't get the url to the course's About page if the marketing site is enabled.
     course_about_url = None
     if not settings.FEATURES.get('ENABLE_MKTG_SITE', False):
-        course_about_url = u'https://{}{}'.format(
-            stripped_site_name,
-            reverse('about_course', kwargs={'course_id': course.id.to_deprecated_string()})
+        course_about_url = u'{proto}://{site}{path}'.format(
+            proto=protocol,
+            site=stripped_site_name,
+            path=reverse('about_course', kwargs={'course_id': course.id.to_deprecated_string()})
         )
 
     is_shib_course = uses_shib(course)

lms/djangoapps/instructor/tests/test_legacy_enrollment.py

@@ -3,6 +3,7 @@ Unit tests for enrollment methods in views.py
 
 """
 
+import ddt
 from mock import patch
 
 from django.test.utils import override_settings
@@ -20,6 +21,7 @@ from django.core import mail
 USER_COUNT = 4
 
 
+@ddt.ddt
 @override_settings(MODULESTORE=TEST_DATA_MIXED_MODULESTORE)
 class TestInstructorEnrollsStudent(ModuleStoreTestCase, LoginEnrollmentTestCase):
     """
@@ -189,7 +191,8 @@ class TestInstructorEnrollsStudent(ModuleStoreTestCase, LoginEnrollmentTestCase)
         cleaned_string, cleaned_string_lc = get_and_clean_student_list(string)
         self.assertEqual(cleaned_string, ['abc@test.com', 'def@test.com', 'ghi@test.com', 'jkl@test.com', 'mno@test.com'])
 
-    def test_enrollment_email_on(self):
+    @ddt.data('http', 'https')
+    def test_enrollment_email_on(self, protocol):
         """
         Do email on enroll test
         """
@@ -200,7 +203,9 @@ class TestInstructorEnrollsStudent(ModuleStoreTestCase, LoginEnrollmentTestCase)
         UserFactory.create(username="student3_0", email="student3_0@test.com", first_name='Autoenrolled')
 
         url = reverse('instructor_dashboard_legacy', kwargs={'course_id': course.id.to_deprecated_string()})
-        response = self.client.post(url, {'action': 'Enroll multiple students', 'multiple_students': 'student3_0@test.com, student3_1@test.com, student3_2@test.com', 'auto_enroll': 'on', 'email_students': 'on'})
+        params = {'action': 'Enroll multiple students', 'multiple_students': 'student3_0@test.com, student3_1@test.com, student3_2@test.com', 'auto_enroll': 'on', 'email_students': 'on'}
+        environ = {'wsgi.url_scheme': protocol}
+        response = self.client.post(url, params, **environ)
 
         # Check the page output
         self.assertContains(response, '<td>student3_0@test.com</td>')
@@ -221,8 +226,8 @@ class TestInstructorEnrollsStudent(ModuleStoreTestCase, LoginEnrollmentTestCase)
             "at edx.org by a member of the course staff. "
             "The course should now appear on your edx.org dashboard.\n\n"
             "To start accessing course materials, please visit "
-            "https://edx.org/courses/MITx/999/Robot_Super_Course/\n\n"
-            "----\nThis email was automatically sent from edx.org to Autoenrolled Test"
+            "{}://edx.org/courses/MITx/999/Robot_Super_Course/\n\n"
+            "----\nThis email was automatically sent from edx.org to Autoenrolled Test".format(protocol)
         )
 
         self.assertEqual(
@@ -235,12 +240,12 @@ class TestInstructorEnrollsStudent(ModuleStoreTestCase, LoginEnrollmentTestCase)
             "Robot Super Course at edx.org by a member of the "
             "course staff.\n\n"
             "To finish your registration, please visit "
-            "https://edx.org/register and fill out the registration form "
+            "{}://edx.org/register and fill out the registration form "
             "making sure to use student3_1@test.com in the E-mail field.\n"
             "Once you have registered and activated your account, you will "
             "see Robot Super Course listed on your dashboard.\n\n"
             "----\nThis email was automatically sent from edx.org to "
-            "student3_1@test.com"
+            "student3_1@test.com".format(protocol)
         )
 
     def test_unenrollment_email_on(self):
@@ -291,8 +296,9 @@ class TestInstructorEnrollsStudent(ModuleStoreTestCase, LoginEnrollmentTestCase)
         send_mail_ret = send_mail_to_student('student0@test.com', d)
         self.assertFalse(send_mail_ret)
 
+    @ddt.data('http', 'https')
     @patch('instructor.views.legacy.uses_shib')
-    def test_enrollment_email_on_shib_on(self, mock_uses_shib):
+    def test_enrollment_email_on_shib_on(self, protocol, mock_uses_shib):
         # Do email on enroll, shibboleth on test
 
         course = self.course
@@ -302,7 +308,9 @@ class TestInstructorEnrollsStudent(ModuleStoreTestCase, LoginEnrollmentTestCase)
         UserFactory.create(username="student5_0", email="student5_0@test.com", first_name="ShibTest", last_name="Enrolled")
 
         url = reverse('instructor_dashboard_legacy', kwargs={'course_id': course.id.to_deprecated_string()})
-        response = self.client.post(url, {'action': 'Enroll multiple students', 'multiple_students': 'student5_0@test.com, student5_1@test.com', 'auto_enroll': 'on', 'email_students': 'on'})
+        params = {'action': 'Enroll multiple students', 'multiple_students': 'student5_0@test.com, student5_1@test.com', 'auto_enroll': 'on', 'email_students': 'on'}
+        environ = {'wsgi.url_scheme': protocol}
+        response = self.client.post(url, params, **environ)
 
         # Check the page output
         self.assertContains(response, '<td>student5_0@test.com</td>')
@@ -322,8 +330,8 @@ class TestInstructorEnrollsStudent(ModuleStoreTestCase, LoginEnrollmentTestCase)
             "at edx.org by a member of the course staff. "
             "The course should now appear on your edx.org dashboard.\n\n"
             "To start accessing course materials, please visit "
-            "https://edx.org/courses/MITx/999/Robot_Super_Course/\n\n"
-            "----\nThis email was automatically sent from edx.org to ShibTest Enrolled"
+            "{}://edx.org/courses/MITx/999/Robot_Super_Course/\n\n"
+            "----\nThis email was automatically sent from edx.org to ShibTest Enrolled".format(protocol)
         )
 
         self.assertEqual(
@@ -335,7 +343,7 @@ class TestInstructorEnrollsStudent(ModuleStoreTestCase, LoginEnrollmentTestCase)
             "Dear student,\n\nYou have been invited to join "
             "Robot Super Course at edx.org by a member of the "
             "course staff.\n\n"
-            "To access the course visit https://edx.org/courses/MITx/999/Robot_Super_Course/ and login.\n\n"
+            "To access the course visit {}://edx.org/courses/MITx/999/Robot_Super_Course/ and login.\n\n"
             "----\nThis email was automatically sent from edx.org to "
-            "student5_1@test.com"
+            "student5_1@test.com".format(protocol)
         )

lms/djangoapps/instructor/views/api.py

@@ -257,7 +257,7 @@ def students_update_enrollment(request, course_id):
     email_params = {}
     if email_students:
         course = get_course_by_id(course_id)
-        email_params = get_email_params(course, auto_enroll)
+        email_params = get_email_params(course, auto_enroll, secure=request.is_secure())
 
     results = []
     for identifier in identifiers:
@@ -348,7 +348,8 @@ def bulk_beta_modify_access(request, course_id):
 
     email_params = {}
     if email_students:
-        email_params = get_email_params(course, auto_enroll=auto_enroll)
+        secure = request.is_secure()
+        email_params = get_email_params(course, auto_enroll=auto_enroll, secure=secure)
 
     for identifier in identifiers:
         try:

lms/djangoapps/instructor/views/legacy.py

@@ -813,7 +813,8 @@ def instructor_dashboard(request, course_id):
         students = request.POST.get('multiple_students', '')
         auto_enroll = bool(request.POST.get('auto_enroll'))
         email_students = bool(request.POST.get('email_students'))
-        ret = _do_enroll_students(course, course_key, students, auto_enroll=auto_enroll, email_students=email_students, is_shib_course=is_shib_course)
+        secure = request.is_secure()
+        ret = _do_enroll_students(course, course_key, students, secure=secure, auto_enroll=auto_enroll, email_students=email_students, is_shib_course=is_shib_course)
         datatable = ret['datatable']
 
     elif action == 'Unenroll multiple students':
@@ -839,7 +840,8 @@ def instructor_dashboard(request, course_id):
         if not 'List' in action:
             students = ','.join([x['email'] for x in datatable['retdata']])
             overload = 'Overload' in action
-            ret = _do_enroll_students(course, course_key, students, overload=overload)
+            secure = request.is_secure()
+            ret = _do_enroll_students(course, course_key, students, secure=secure, overload=overload)
             datatable = ret['datatable']
 
     #----------------------------------------
@@ -1439,7 +1441,7 @@ def grade_summary(request, course_key):
 #-----------------------------------------------------------------------------
 # enrollment
 
-def _do_enroll_students(course, course_key, students, overload=False, auto_enroll=False, email_students=False, is_shib_course=False):
+def _do_enroll_students(course, course_key, students, secure=False, overload=False, auto_enroll=False, email_students=False, is_shib_course=False):
     """
     Do the actual work of enrolling multiple students, presented as a string
     of emails separated by commas or returns
@@ -1468,26 +1470,30 @@ def _do_enroll_students(course, course_key, students, overload=False, auto_enrol
         ceaset.delete()
 
     if email_students:
+        protocol = 'https' if secure else 'http'
         stripped_site_name = microsite.get_value(
             'SITE_NAME',
             settings.SITE_NAME
         )
-        # TODO: Use request.build_absolute_uri rather than 'https://{}{}'.format
+        # TODO: Use request.build_absolute_uri rather than '{proto}://{site}{path}'.format
         # and check with the Services team that this works well with microsites
-        registration_url = 'https://{}{}'.format(
-            stripped_site_name,
-            reverse('student.views.register_user')
+        registration_url = '{proto}://{site}{path}'.format(
+            proto=protocol,
+            site=stripped_site_name,
+            path=reverse('student.views.register_user')
         )
-        course_url = 'https://{}{}'.format(
-            stripped_site_name,
-            reverse('course_root', kwargs={'course_id': course_key.to_deprecated_string()})
+        course_url = '{proto}://{site}{path}'.format(
+            proto=protocol,
+            site=stripped_site_name,
+            path=reverse('course_root', kwargs={'course_id': course_key.to_deprecated_string()})
         )
         # We can't get the url to the course's About page if the marketing site is enabled.
         course_about_url = None
         if not settings.FEATURES.get('ENABLE_MKTG_SITE', False):
-            course_about_url = u'https://{}{}'.format(
-                stripped_site_name,
-                reverse('about_course', kwargs={'course_id': course_key.to_deprecated_string()})
+            course_about_url = u'{proto}://{site}{path}'.format(
+                proto=protocol,
+                site=stripped_site_name,
+                path=reverse('about_course', kwargs={'course_id': course_key.to_deprecated_string()})
             )
 
         # Composition of email