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Verify multipart etag during complete, closes #4288

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Remco Verhoef 2017-05-10 21:21:42 -07:00 committed by Harshavardhana
parent c63cdca11f
commit 52b500cce9
1 changed files with 11 additions and 3 deletions
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14
cmd/gateway-gcs.go
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@ -799,8 +799,16 @@ func (l *gcsGateway) CompleteMultipartUpload(bucket string, key string, uploadID
parts := make([]*storage.ObjectHandle, len(uploadedParts))
for i, uploadedPart := range uploadedParts {
// TODO: verify attrs / ETag
parts[i] = l.client.Bucket(bucket).Object(toGCSMultipartKey(key, uploadID, uploadedPart.PartNumber))
object := l.client.Bucket(bucket).Object(toGCSMultipartKey(key, uploadID, uploadedPart.PartNumber))
if etag, partErr := hex.DecodeString(uploadedPart.ETag); partErr != nil {
} else if attrs, partErr := object.Attrs(l.ctx); partErr != nil {
return ObjectInfo{}, gcsToObjectError(traceError(partErr), bucket, key)
} else if bytes.Compare(attrs.MD5, etag) != 0 {
return ObjectInfo{}, gcsToObjectError(traceError(InvalidPart{}), bucket, key)
}
parts[i] = object
}
if len(parts) > 32 {
@ -808,7 +816,7 @@ func (l *gcsGateway) CompleteMultipartUpload(bucket string, key string, uploadID
// into subcomposes. This means that the first 32 parts will
// compose to a composed-object-0, next parts to composed-object-1,
// the final compose will compose composed-object* to 1.
return ObjectInfo{}, NotSupported{}
return ObjectInfo{}, traceError(NotSupported{})
}
dst := l.client.Bucket(bucket).Object(key)