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avoid concurrent reads and writes to opts.UserDefined (#14862)

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do not modify opts.UserDefined after object-handler
has set all the necessary values, any mutation needed
should be done on a copy of this value not directly.

As there are other pieces of code that access opts.UserDefined
concurrently this becomes challenging.

fixes #14856
This commit is contained in:
Harshavardhana
2022-05-05 04:14:41 -07:00
committed by GitHub
parent 2b7e75e079
commit c7df1ffc6f
7 changed files with 53 additions and 55 deletions
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7
cmd/gateway/s3/gateway-s3-sse.go
View File

@@ -364,6 +364,7 @@ func (l *s3EncObjects) GetObjectInfo(ctx context.Context, bucket string, object
// CopyObject copies an object from source bucket to a destination bucket.
func (l *s3EncObjects) CopyObject(ctx context.Context, srcBucket string, srcObject string, dstBucket string, dstObject string, srcInfo minio.ObjectInfo, s, d minio.ObjectOptions) (objInfo minio.ObjectInfo, err error) {
cpSrcDstSame := path.Join(srcBucket, srcObject) == path.Join(dstBucket, dstObject)
userDefined := minio.CloneMSS(srcInfo.UserDefined)
if cpSrcDstSame {
var gwMeta gwMetaV1
if s.ServerSideEncryption != nil && d.ServerSideEncryption != nil &&
@@ -378,16 +379,16 @@ func (l *s3EncObjects) CopyObject(ctx context.Context, srcBucket string, srcObje
d.ServerSideEncryption.Marshal(header)
}
for k, v := range header {
srcInfo.UserDefined[k] = v[0]
userDefined[k] = v[0]
}
gwMeta.Meta = srcInfo.UserDefined
gwMeta.Meta = userDefined
if err = l.writeGWMetadata(ctx, dstBucket, getDareMetaPath(dstObject), gwMeta, minio.ObjectOptions{}); err != nil {
return objInfo, minio.ErrorRespToObjectError(err)
}
return gwMeta.ToObjectInfo(dstBucket, dstObject), nil
}
}
dstOpts := minio.ObjectOptions{ServerSideEncryption: d.ServerSideEncryption, UserDefined: srcInfo.UserDefined}
dstOpts := minio.ObjectOptions{ServerSideEncryption: d.ServerSideEncryption, UserDefined: userDefined}
return l.PutObject(ctx, dstBucket, dstObject, srcInfo.PutObjReader, dstOpts)
}