compat: image normalization: handle sha256 prefix

When normalizing image names on the compat API, make sure to take the
`sha256:` prefix into account when matching against the image ID.
Otherwise, the name will mistakingly be subject to docker.io
normalization.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/pkg/api/handlers/utils/images.go b/pkg/api/handlers/utils/images.go
index d874165e3..3f3f48193 100644
--- a/pkg/api/handlers/utils/images.go
+++ b/pkg/api/handlers/utils/images.go
@@ -35,7 +35,7 @@ func NormalizeToDockerHub(r *http.Request, nameOrID string) (string, error) {
 		if errors.Cause(err) != storage.ErrImageUnknown {
 			return "", fmt.Errorf("normalizing name for compat API: %v", err)
 		}
-	} else if strings.HasPrefix(img.ID(), nameOrID) {
+	} else if strings.HasPrefix(img.ID(), strings.TrimPrefix(nameOrID, "sha256:")) {
 		return img.ID(), nil
 	}