Update django-storages to 1.14.2

The problem that boto3 closes files has been worked around in django-storages.

bookwyrm/storage_backends.py

@@ -1,55 +1,23 @@
 """Handles backends for storages"""
-import os
-from tempfile import SpooledTemporaryFile
 from django.core.files.storage import FileSystemStorage
-from storages.backends.s3boto3 import S3Boto3Storage
+from storages.backends.s3 import S3Storage
 from storages.backends.azure_storage import AzureStorage
 
 
-class StaticStorage(S3Boto3Storage):  # pylint: disable=abstract-method
+class StaticStorage(S3Storage):  # pylint: disable=abstract-method
     """Storage class for Static contents"""
 
     location = "static"
     default_acl = "public-read"
 
 
-class ImagesStorage(S3Boto3Storage):  # pylint: disable=abstract-method
+class ImagesStorage(S3Storage):  # pylint: disable=abstract-method
     """Storage class for Image files"""
 
     location = "images"
     default_acl = "public-read"
     file_overwrite = False
 
-    """
-    This is our custom version of S3Boto3Storage that fixes a bug in
-    boto3 where the passed in file is closed upon upload.
-    From:
-    https://github.com/matthewwithanm/django-imagekit/issues/391#issuecomment-275367006
-    https://github.com/boto/boto3/issues/929
-    https://github.com/matthewwithanm/django-imagekit/issues/391
-    """
-
-    def _save(self, name, content):
-        """
-        We create a clone of the content file as when this is passed to
-        boto3 it wrongly closes the file upon upload where as the storage
-        backend expects it to still be open
-        """
-        # Seek our content back to the start
-        content.seek(0, os.SEEK_SET)
-
-        # Create a temporary file that will write to disk after a specified
-        # size. This file will be automatically deleted when closed by
-        # boto3 or after exiting the `with` statement if the boto3 is fixed
-        with SpooledTemporaryFile() as content_autoclose:
-
-            # Write our original content into our copy that will be closed by boto3
-            content_autoclose.write(content.read())
-
-            # Upload the object which will auto close the
-            # content_autoclose instance
-            return super()._save(name, content_autoclose)
-
 
 class AzureStaticStorage(AzureStorage):  # pylint: disable=abstract-method
     """Storage class for Static contents"""
@@ -71,7 +39,7 @@ class ExportsFileStorage(FileSystemStorage):  # pylint: disable=abstract-method
     overwrite_files = False
 
 
-class ExportsS3Storage(S3Boto3Storage):  # pylint: disable=abstract-method
+class ExportsS3Storage(S3Storage):  # pylint: disable=abstract-method
     """Storage class for exports contents with S3"""
 
     location = "exports"

bookwyrm/views/preferences/export.py

@@ -14,9 +14,9 @@ from django.urls import reverse
 from django.utils.decorators import method_decorator
 from django.shortcuts import redirect
 
-from storages.backends.s3boto3 import S3Boto3Storage
+from storages.backends.s3 import S3Storage
 
-from bookwyrm import models, storage_backends
+from bookwyrm import models
 from bookwyrm.models.bookwyrm_export_job import BookwyrmExportJob
 from bookwyrm import settings
 
@@ -220,17 +220,16 @@ class ExportUser(View):
 class ExportArchive(View):
     """Serve the archive file"""
 
-    # TODO: how do we serve s3 files?
     def get(self, request, archive_id):
         """download user export file"""
         export = BookwyrmExportJob.objects.get(task_id=archive_id, user=request.user)
 
-        if isinstance(export.export_data.storage, storage_backends.ExportsS3Storage):
+        if settings.USE_S3:
             # make custom_domain None so we can sign the url
             # see https://github.com/jschneier/django-storages/issues/944
-            storage = S3Boto3Storage(querystring_auth=True, custom_domain=None)
+            storage = S3Storage(querystring_auth=True, custom_domain=None)
             try:
-                url = S3Boto3Storage.url(
+                url = S3Storage.url(
                     storage,
                     f"/exports/{export.task_id}.tar.gz",
                     expire=settings.S3_SIGNED_URL_EXPIRY,
@@ -239,16 +238,17 @@ class ExportArchive(View):
                 raise Http404()
             return redirect(url)
 
-        if isinstance(export.export_data.storage, storage_backends.ExportsFileStorage):
+        if settings.USE_AZURE:
-            try:
+            # not implemented
-                return HttpResponse(
+            return HttpResponseServerError()
-                    export.export_data,
-                    content_type="application/gzip",
-                    headers={
-                        "Content-Disposition": 'attachment; filename="bookwyrm-account-export.tar.gz"'  # pylint: disable=line-too-long
-                    },
-                )
-            except FileNotFoundError:
-                raise Http404()
 
-        return HttpResponseServerError()
+        try:
+            return HttpResponse(
+                export.export_data,
+                content_type="application/gzip",
+                headers={
+                    "Content-Disposition": 'attachment; filename="bookwyrm-account-export.tar.gz"'  # pylint: disable=line-too-long
+                },
+            )
+        except FileNotFoundError:
+            raise Http404()

requirements.txt

@@ -14,7 +14,7 @@ django-oauth-toolkit==2.3.0
 django-pgtrigger==4.11.0
 django-redis==5.2.0
 django-sass-processor==1.2.2
-django-storages==1.13.2
+django-storages==1.14.2
 django-storages[azure]
 environs==11.0.0
 flower==2.0.1