001/*
002 * This file is part of the JDrupes non-blocking HTTP Codec
003 * Copyright (C) 2022 Michael N. Lipp
004 *
005 * This program is free software; you can redistribute it and/or modify it 
006 * under the terms of the GNU Lesser General Public License as published
007 * by the Free Software Foundation; either version 3 of the License, or 
008 * (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful, but 
011 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
012 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
013 * License for more details.
014 *
015 * You should have received a copy of the GNU Lesser General Public License along 
016 * with this program; if not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jdrupes.httpcodec.types;
020
021import java.net.HttpCookie;
022import java.text.ParseException;
023
024import org.jdrupes.httpcodec.types.Converters.SameSiteAttribute;
025
026/**
027 * Converts a {@link HttpCookie} to the representation used in
028 * a "Set-Cookie" header.
029 * 
030 * @see "[Set-Cookie](https://www.rfc-editor.org/rfc/rfc6265#section-4.1)"
031 */
032public class SetCookieStringConverter implements Converter<HttpCookie> {
033
034    private SameSiteAttribute sameSiteAttribute = SameSiteAttribute.UNSET;
035
036    /**
037     * Returns the same site attribute.
038     *
039     * @return the same site attribute
040     */
041    public SameSiteAttribute sameSiteAttribute() {
042        return sameSiteAttribute;
043    }
044
045    /**
046     * Controls if and which same site attribute is added to the string.
047     *
048     * @param sameSiteAttribute the new same site attribute
049     */
050    public SetCookieStringConverter
051            setSameSiteAttribute(SameSiteAttribute sameSiteAttribute) {
052        this.sameSiteAttribute = sameSiteAttribute;
053        return this;
054    }
055
056    @Override
057    public String asFieldValue(HttpCookie cookie) {
058        StringBuilder result = new StringBuilder();
059        result.append(cookie.getName()).append('=');
060        if (cookie.getValue() != null) {
061            result.append(cookie.getValue());
062        }
063        if (cookie.getMaxAge() > -1) {
064            result.append("; Max-Age=");
065            result.append(Long.toString(cookie.getMaxAge()));
066        }
067        if (cookie.getDomain() != null) {
068            result.append("; Domain=");
069            result.append(cookie.getDomain());
070        }
071        if (cookie.getPath() != null) {
072            result.append("; Path=");
073            result.append(cookie.getPath());
074        }
075        if (cookie.getSecure()) {
076            result.append("; Secure");
077        }
078        if (cookie.isHttpOnly()) {
079            result.append("; HttpOnly");
080        }
081        if (sameSiteAttribute != SameSiteAttribute.UNSET) {
082            result.append("; SameSite=").append(sameSiteAttribute.value());
083        }
084        return result.toString();
085    }
086
087    @Override
088    public HttpCookie fromFieldValue(String text)
089            throws ParseException {
090        throw new UnsupportedOperationException();
091    }
092
093}