feat!: Drop the legacy studio home page.

This is the page that lists the courses in studio.  This has been
replaced by an MFE and the MFE has been on by default since Teak.

BREAKING CHANGE: Setting the `legacy_studio.home` waffle flag will no longer
work.  The code will behave as if this is set to false showing the new
studio authoring MFE experience for the course home page.

This has been the default since Teak.

cms/djangoapps/contentstore/rest_api/v1/serializers/course_waffle_flags.py

@@ -40,9 +40,13 @@ class CourseWaffleFlagsSerializer(serializers.Serializer):
 
     def get_use_new_home_page(self, obj):
         """
-        Method to get the use_new_home_page switch
+        Method to indicate whether we should use the new home page.
+
+        This used to be based on a waffle flag but the flag is being removed so we
+        default it to true for now until we can remove the need for it from the consumers
+        of this serializer and the related APIs.
         """
-        return toggles.use_new_home_page()
+        return True
 
     def get_use_new_custom_pages(self, obj):
         """

cms/djangoapps/contentstore/tests/test_course_listing.py

@@ -8,12 +8,9 @@ from unittest.mock import Mock, patch
 
 import ddt
 from ccx_keys.locator import CCXLocator
-from django.conf import settings
 from django.test import RequestFactory
-from edx_toggles.toggles.testutils import override_waffle_flag
 from opaque_keys.edx.locations import CourseLocator
 
-from cms.djangoapps.contentstore import toggles
 from cms.djangoapps.contentstore.tests.utils import AjaxEnabledTestClient
 from cms.djangoapps.contentstore.utils import delete_course
 from cms.djangoapps.contentstore.views.course import (
@@ -89,15 +86,6 @@ class TestCourseListing(ModuleStoreTestCase):
         self.client.logout()
         ModuleStoreTestCase.tearDown(self)  # pylint: disable=non-parent-method-called
 
-    @override_waffle_flag(toggles.LEGACY_STUDIO_HOME, True)
-    def test_empty_course_listing(self):
-        """
-        Test on empty course listing, studio name is properly displayed
-        """
-        message = f"Are you staff on an existing {settings.STUDIO_SHORT_NAME} course?"
-        response = self.client.get('/home')
-        self.assertContains(response, message)
-
     def test_get_course_list(self):
         """
         Test getting courses with new access group format e.g. 'instructor_edx.course.run'

cms/djangoapps/contentstore/tests/tests.py

@@ -11,7 +11,7 @@ Part of https://github.com/openedx/edx-platform/issues/36275.
 import datetime
 import time
 from unittest import mock
-from urllib.parse import quote_plus
+from urllib.parse import quote_plus, unquote
 
 from ddt import data, ddt, unpack
 from django.conf import settings
@@ -24,6 +24,7 @@ from pytz import UTC
 from cms.djangoapps.contentstore import toggles
 from cms.djangoapps.contentstore.tests.test_course_settings import CourseTestCase
 from cms.djangoapps.contentstore.tests.utils import AjaxEnabledTestClient, parse_json, registration, user
+from cms.djangoapps.contentstore.utils import get_studio_home_url
 from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase  # lint-amnesty, pylint: disable=wrong-import-order
 from xmodule.modulestore.tests.factories import CourseFactory  # lint-amnesty, pylint: disable=wrong-import-order
 
@@ -114,12 +115,6 @@ class AuthTestCase(ContentStoreTestCase):
         # clear the cache so ratelimiting won't affect these tests
         cache.clear()
 
-    def check_page_get(self, url, expected):
-        resp = self.client.get_html(url)
-        self.assertEqual(resp.status_code, expected)
-        return resp
-
-    @override_waffle_flag(toggles.LEGACY_STUDIO_HOME, True)
     def test_private_pages_auth(self):
         """Make sure pages that do require login work."""
         auth_pages = (
@@ -143,7 +138,9 @@ class AuthTestCase(ContentStoreTestCase):
         print('Not logged in')
         for page in auth_pages:
             print(f"Checking '{page}'")
-            self.check_page_get(page, expected=302)
+            resp = self.client.get_html(page)
+            assert resp.status_code == 302
+            assert resp.url == unquote(reverse("login", query={"next": page}))
 
         # Logged in should work.
         self.login(self.email, self.pw)
@@ -151,10 +148,11 @@ class AuthTestCase(ContentStoreTestCase):
         print('Logged in')
         for page in simple_auth_pages:
             print(f"Checking '{page}'")
-            self.check_page_get(page, expected=200)
+            resp = self.client.get_html(page)
+            assert resp.status_code == 302
+            assert resp.url == get_studio_home_url()
 
     @override_settings(SESSION_INACTIVITY_TIMEOUT_IN_SECONDS=1)
-    @override_waffle_flag(toggles.LEGACY_STUDIO_HOME, True)
     def test_inactive_session_timeout(self):
         """
         Verify that an inactive session times out and redirects to the
@@ -168,7 +166,8 @@ class AuthTestCase(ContentStoreTestCase):
         # make sure we can access courseware immediately
         course_url = '/home/'
         resp = self.client.get_html(course_url)
-        self.assertEqual(resp.status_code, 200)
+        assert resp.status_code == 302
+        assert resp.url == get_studio_home_url()
 
         # then wait a bit and see if we get timed out
         time.sleep(2)

cms/djangoapps/contentstore/toggles.py

@@ -162,25 +162,6 @@ def individualize_anonymous_user_id(course_id):
     return INDIVIDUALIZE_ANONYMOUS_USER_ID.is_enabled(course_id)
 
 
-# .. toggle_name: legacy_studio.home
-# .. toggle_implementation: WaffleFlag
-# .. toggle_default: False
-# .. toggle_description: Temporarily fall back to the old Studio logged-in landing page.
-# .. toggle_use_cases: temporary
-# .. toggle_creation_date: 2025-03-14
-# .. toggle_target_removal_date: 2025-09-14
-# .. toggle_tickets: https://github.com/openedx/edx-platform/issues/36275
-# .. toggle_warning: In Ulmo, this toggle will be removed. Only the new (React-based) experience will be available.
-LEGACY_STUDIO_HOME = WaffleFlag('legacy_studio.home', __name__)
-
-
-def use_new_home_page():
-    """
-    Returns a boolean if new studio home page mfe is enabled
-    """
-    return not LEGACY_STUDIO_HOME.is_enabled()
-
-
 # .. toggle_name: legacy_studio.custom_pages
 # .. toggle_implementation: WaffleFlag
 # .. toggle_default: False

cms/djangoapps/contentstore/utils.py

@@ -15,7 +15,7 @@ from uuid import uuid4
 
 from bs4 import BeautifulSoup
 from django.conf import settings
-from django.core.exceptions import ObjectDoesNotExist, ValidationError
+from django.core.exceptions import ImproperlyConfigured, ObjectDoesNotExist, ValidationError
 from django.urls import reverse
 from django.utils import translation
 from django.utils.text import Truncator
@@ -50,7 +50,6 @@ from cms.djangoapps.contentstore.toggles import (
     use_new_files_uploads_page,
     use_new_grading_page,
     use_new_group_configurations_page,
-    use_new_home_page,
     use_new_import_page,
     use_new_schedule_details_page,
     use_new_textbooks_page,
@@ -298,12 +297,15 @@ def get_studio_home_url():
     """
     Gets course authoring microfrontend URL for Studio Home view.
     """
-    studio_home_url = None
-    if use_new_home_page():
-        mfe_base_url = settings.COURSE_AUTHORING_MICROFRONTEND_URL
-        if mfe_base_url:
-            studio_home_url = f'{mfe_base_url}/home'
-    return studio_home_url
+    mfe_base_url = settings.COURSE_AUTHORING_MICROFRONTEND_URL
+    if mfe_base_url:
+        studio_home_url = f'{mfe_base_url}/home'
+        return studio_home_url
+
+    raise ImproperlyConfigured(
+        "The COURSE_AUTHORING_MICROFRONTEND_URL must be configured. "
+        "Please set it to the base url for your authoring MFE."
+    )
 
 
 def get_schedule_details_url(course_locator) -> str:

cms/djangoapps/contentstore/views/course.py

@@ -86,7 +86,6 @@ from ..tasks import rerun_course as rerun_course_task
 from ..toggles import (
     default_enable_flexible_peer_openassessments,
     use_new_course_outline_page,
-    use_new_home_page,
     use_new_updates_page,
     use_new_advanced_settings_page,
     use_new_grading_page,
@@ -105,7 +104,6 @@ from ..utils import (
     get_grading_url,
     get_group_configurations_context,
     get_group_configurations_url,
-    get_home_context,
     get_library_context,
     get_lms_link_for_item,
     get_proctored_exam_settings_url,
@@ -652,11 +650,7 @@ def course_listing(request):
     """
     List all courses and libraries available to the logged in user
     """
-    if use_new_home_page():
-        return redirect(get_studio_home_url())
-
-    home_context = get_home_context(request)
-    return render_to_response('index.html', home_context)
+    return redirect(get_studio_home_url())
 
 
 @login_required

cms/templates/widgets/header.html

@@ -16,22 +16,12 @@
   <header class="primary" role="banner">
     <div class="wrapper wrapper-l">
       <h1 class="branding">
-        % if not toggles.use_new_home_page():
-        <a class="brand-link" href="/">
-          <img class="brand-image" src="${static.url('images/studio-logo.png')}" alt="${settings.STUDIO_NAME}" />
-            % if settings.LOGO_IMAGE_EXTRA_TEXT == 'edge':
-            <span class="font-italic"> <span class="tilted">|</span> EDGE</span>
-            % endif
-        </a>
-        % endif
-        % if toggles.use_new_home_page():
         <a class="brand-link" href="${get_studio_home_url()}">
           <img class="brand-image" src="${static.url('images/studio-logo.png')}" alt="${settings.STUDIO_NAME}" />
             % if settings.LOGO_IMAGE_EXTRA_TEXT == 'edge':
             <span class="font-italic"> <span class="tilted">|</span> EDGE</span>
             % endif
         </a>
-        % endif
 
       </h1>