import java.util.HashMap;
import java.util.Map;

import javax.validation.constraints.Size;

import org.apache.logging.log4j.core.config.plugins.validation.constraints.Required;

public class TagForm {

    @Required
    public String path;

    @Required
    @Size(max = 100)
    public String name;

    public Map<String, String> tags = new HashMap<>();

    @Execute
    @Secured({ ROLE })
    public HtmlResponse editTags(final TagForm form) {
        validate(form, messages -> {}, () -> asEditTagsHtml(form.path, form.name));
        saveToken();
        return asEditTagsHtml(form.path, form.name);
    }

    @Execute
    @Secured({ ROLE })
    public HtmlResponse updateTags(final TagForm form) {
        validate(form, messages -> {}, () -> asEditTagsHtml(form.path, form.name));

		return nil, err
	}
	newReq := req
	newReq.Body = io.NopCloser(
		bytes.NewReader(bytes.Join([][]byte{newChunkHdr, newChunk[:len(newChunk)/2]},
			[]byte(""))),
	)
	return newReq, nil
}

// Malform data given a request signed using streaming signature V4.
func malformDataSigV4(req *http.Request, newByte byte) (*http.Request, error) {
	bufReader := bufio.NewReader(req.Body)