Function ParseMetadataHeader

pkg/handler/unrouted_handler.go:1580–1612

ParseMetadataHeader parses the Upload-Metadata header as defined in the File Creation extension. e.g. Upload-Metadata: name bHVucmpzLnBuZw==,type aW1hZ2UvcG5n

(header string)

// File Creation extension.
// e.g. Upload-Metadata: name bHVucmpzLnBuZw==,type aW1hZ2UvcG5n
func ParseMetadataHeader(header string) map[string]string {
	meta := make(map[string]string)

	for element := range strings.SplitSeq(header, ",") {
		element := strings.TrimSpace(element)

		parts := strings.Split(element, " ")

		if len(parts) > 2 {
			continue
		}

		key := parts[0]
		if key == "" {
			continue
		}

		value := ""
		if len(parts) == 2 {
			// Ignore current element if the value is no valid base64
			dec, err := base64.StdEncoding.DecodeString(parts[1])
			if err != nil {
				continue
			}

			value = string(dec)
		}

		meta[key] = value
	}

	return meta
}

// SerializeMetadataHeader serializes a map of strings into the Upload-Metadata
// header format used in the response for HEAD requests.