fix: removing s3boto storage backend. (#31876)

* fix: removing s3boto storage backend

cms/djangoapps/contentstore/views/import_export.py

@@ -27,7 +27,6 @@ from edx_django_utils.monitoring import set_custom_attribute, set_custom_attribu
 from opaque_keys.edx.keys import CourseKey
 from opaque_keys.edx.locator import LibraryLocator
 from path import Path as path
-from storages.backends.s3boto import S3BotoStorage
 from storages.backends.s3boto3 import S3Boto3Storage
 from user_tasks.conf import settings as user_tasks_settings
 from user_tasks.models import UserTaskArtifact, UserTaskStatus
@@ -381,14 +380,6 @@ def export_status_handler(request, course_key_string):
         artifact = UserTaskArtifact.objects.get(status=task_status, name='Output')
         if isinstance(artifact.file.storage, FileSystemStorage):
             output_url = reverse_course_url('export_output_handler', course_key)
-        elif isinstance(artifact.file.storage, S3BotoStorage):
-            filename = os.path.basename(artifact.file.name)
-            disposition = f'attachment; filename="{filename}"'
-            output_url = artifact.file.storage.url(artifact.file.name, response_headers={
-                'response-content-disposition': disposition,
-                'response-content-encoding': 'application/octet-stream',
-                'response-content-type': 'application/x-tgz'
-            })
         elif isinstance(artifact.file.storage, S3Boto3Storage):
             filename = os.path.basename(artifact.file.name)
             disposition = f'attachment; filename="{filename}"'

cms/djangoapps/contentstore/views/tests/test_import_export.py

@@ -25,7 +25,6 @@ from django.test.utils import override_settings
 from milestones.tests.utils import MilestonesTestCaseMixin
 from opaque_keys.edx.locator import LibraryLocator
 from path import Path as path
-from storages.backends.s3boto import S3BotoStorage
 from storages.backends.s3boto3 import S3Boto3Storage
 from user_tasks.models import UserTaskStatus
 
@@ -958,7 +957,7 @@ class ExportTestCase(CourseTestCase):
         """
         Verify that the export status handler generates the correct export path
         for storage providers other than ``FileSystemStorage`` and
-        ``S3BotoStorage``
+        ``S3Boto3Storage``
         """
         mock_latest_task_status.return_value = Mock(state=UserTaskStatus.SUCCEEDED)
         mock_get_user_task_artifact.return_value = self._mock_artifact(
@@ -968,7 +967,7 @@ class ExportTestCase(CourseTestCase):
         result = json.loads(resp.content.decode('utf-8'))
         self.assertEqual(result['ExportOutput'], '/path/to/testfile.tar.gz')
 
-    @ddt.data(S3BotoStorage, S3Boto3Storage)
+    @ddt.data(S3Boto3Storage)
     @patch('cms.djangoapps.contentstore.views.import_export._latest_task_status')
     @patch('user_tasks.models.UserTaskArtifact.objects.get')
     def test_export_status_handler_s3(
@@ -979,7 +978,7 @@ class ExportTestCase(CourseTestCase):
     ):
         """
         Verify that the export status handler generates the correct export path
-        for the ``S3BotoStorage`` storage provider
+        for the ``S3Boto3Storage`` storage provider
         """
         mock_latest_task_status.return_value = Mock(state=UserTaskStatus.SUCCEEDED)
         mock_get_user_task_artifact.return_value = self._mock_artifact(