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Azure:ETag returned by ListObjects to be consistent with GetObjectInfo (#7301)

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poornas 2019-03-20 18:11:46 -07:00 committed by kannappanr
parent 87cf51d5ab
commit 8e1e701d35
1 changed files with 24 additions and 1 deletions
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25
cmd/gateway/azure/gateway-azure.go
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@ -564,12 +564,35 @@ func (a *azureObjects) ListObjects(ctx context.Context, bucket, prefix, marker,
// skip all the entries till we reach the marker.
continue
}
// Populate correct ETag's if possible, this code primarily exists
// because AWS S3 indicates that
//
// https://docs.aws.amazon.com/AmazonS3/latest/API/RESTCommonResponseHeaders.html
//
// Objects created by the PUT Object, POST Object, or Copy operation,
// or through the AWS Management Console, and are encrypted by SSE-S3
// or plaintext, have ETags that are an MD5 digest of their object data.
//
// Some applications depend on this behavior refer https://github.com/minio/minio/issues/6550
// So we handle it here and make this consistent.
etag := minio.ToS3ETag(blob.Properties.Etag)
switch {
case blob.Properties.ContentMD5 != "":
b, err := base64.StdEncoding.DecodeString(blob.Properties.ContentMD5)
if err == nil {
etag = hex.EncodeToString(b)
}
case blob.Metadata["md5sum"] != "":
etag = blob.Metadata["md5sum"]
delete(blob.Metadata, "md5sum")
}
objects = append(objects, minio.ObjectInfo{
Bucket: bucket,
Name: blob.Name,
ModTime: time.Time(blob.Properties.LastModified),
Size: blob.Properties.ContentLength,
ETag: minio.ToS3ETag(blob.Properties.Etag),
ETag: etag,
ContentType: blob.Properties.ContentType,
ContentEncoding: blob.Properties.ContentEncoding,
})