Remove scheme from bucket_host

The `fastenv.cloud.object_storage.ObjectStorageConfig` class is used to
configure fastenv for connecting to object storage buckets. The class
accepts a `bucket_host` in "virtual-hosted-style," like
`<BUCKET_NAME>.s3.<REGION>.amazonaws.com` for AWS S3 or
`<BUCKET_NAME>.s3.<REGION>.backblazeb2.com` for Backblaze B2.

Object storage buckets commonly have HTTPS endpoints, and therefore some
users may prepend the scheme ("https://") to their `bucket_host`. The
scheme should be removed if present because it is added automatically
when generating instances of `httpx.URL()`.

This commit will update
`fastenv.cloud.object_storage.ObjectStorageConfig` to remove the scheme.

https://docs.aws.amazon.com/AmazonS3/latest/userguide/VirtualHosting.html

fastenv/cloud/object_storage.py

@@ -77,10 +77,18 @@ def __init__(
                 "`<BUCKET_NAME>.s3.<REGION>.backblazeb2.com` for Backblaze B2."
             )
         elif bucket_host and not bucket_name:
-            if (
-                bucket_host.endswith(".amazonaws.com")
-                or bucket_host.endswith(".backblazeb2.com")
-            ) and bucket_name is None:
+            scheme = (
+                "http://"
+                if bucket_host.startswith("http://")
+                else "https://"
+                if bucket_host.startswith("https://")
+                else None
+            )
+            if scheme:
+                bucket_host = bucket_host.split(scheme, maxsplit=1)[1]
+            if bucket_host.endswith(".amazonaws.com") or bucket_host.endswith(
+                ".backblazeb2.com"
+            ):
                 self.bucket_name = bucket_host.split(".s3.")[0]
             else:
                 self.bucket_name = None

tests/cloud/test_object_storage.py

@@ -243,10 +243,10 @@ def test_config_if_not_bucket_name(
             bucket_name=bucket_name,
             bucket_region=bucket_region,
         )
-        if "backblazeb2" in bucket_host and bucket_name is None:
-            assert config.bucket_name == "mybucket"
-        else:
+        if "digitaloceanspaces.com" in bucket_host:
             assert config.bucket_name is None
+        else:
+            assert config.bucket_name == self.example_bucket_name
 
     def test_config_if_bucket_name_not_in_bucket_host(
         self, mocker: MockerFixture
@@ -295,6 +295,25 @@ def test_config_if_bucket_region_not_in_bucket_host(
             )
         assert str(e.value) == expected_exception_value
 
+    @pytest.mark.parametrize("scheme", ("http", "https"))
+    def test_config_if_scheme_in_bucket_host(
+        self, scheme: str, mocker: MockerFixture
+    ) -> None:
+        """Assert that bucket host scheme ("http" or "https") is removed if present.
+        Scheme is added automatically when generating instances of `httpx.URL()`.
+        """
+        mocker.patch.dict(os.environ, clear=True)
+        bucket_host = f"{scheme}://{self.example_bucket_host}"
+        expected_bucket_host = self.example_bucket_host
+        config = fastenv.cloud.object_storage.ObjectStorageConfig(
+            access_key=self.example_access_key,
+            secret_key=self.example_secret_key,
+            bucket_host=bucket_host,
+            bucket_region=self.example_bucket_region,
+        )
+        assert self.config_is_correct(config, expected_bucket_host=expected_bucket_host)
+        assert scheme not in config.bucket_host
+
 
 class TestObjectStorageClientUnit:
     """Test `class ObjectStorageClient` and its methods.