func (s *dockerImageSource) getSignaturesFromAPIExtension(ctx context.Context, instanceDigest *digest.Digest) ([][]byte, error) {
	manifestDigest, err := s.manifestDigest(ctx, instanceDigest)
	if err != nil {
		return nil, err
	}

	parsedBody, err := s.c.getExtensionsSignatures(ctx, s.ref, manifestDigest)
	if err != nil {
		return nil, err
	}

	var sigs [][]byte
	for _, sig := range parsedBody.Signatures {
		if sig.Version == extensionSignatureSchemaVersion && sig.Type == extensionSignatureTypeAtomic {
			sigs = append(sigs, sig.Content)
		}
	}
	return sigs, nil
}
func (s *dockerImageSource) getSignaturesFromAPIExtension(ctx context.Context, instanceDigest *digest.Digest) ([][]byte, error) {
	manifestDigest, err := s.manifestDigest(ctx, instanceDigest)
	if err != nil {
		return nil, err
	}

	parsedBody, err := s.c.getExtensionsSignatures(ctx, s.ref, manifestDigest)
	if err != nil {
		return nil, err
	}

	var sigs [][]byte
	for _, sig := range parsedBody.Signatures {
		if sig.Version == extensionSignatureSchemaVersion && sig.Type == extensionSignatureTypeAtomic {
			sigs = append(sigs, sig.Content)
		}
	}
	return sigs, nil
}
func ( s * dockerImageSource ) getSignaturesFromAPIExtension ( ctx context . Context , instanceDigest * digest . Digest ) ( [ ] [ ] byte , error ) { manifestDigest , err := s . manifestDigest ( ctx , instanceDigest ) if err != nil { return nil , err } parsedBody , err := s . c . getExtensionsSignatures ( ctx , s . ref , manifestDigest ) if err != nil { return nil , err } var sigs [ ] [ ] byte for _ , sig := range parsedBody . Signatures { if sig . Version == extensionSignatureSchemaVersion && sig . Type == extensionSignatureTypeAtomic { sigs = append ( sigs , sig . Content ) } } return sigs , nil }
// getSignaturesFromAPIExtension implements GetSignatures() using the X-Registry-Supports-Signatures API extension.
getSignaturesFromAPIExtension implements GetSignatures () using the X - Registry - Supports - Signatures API extension .