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/*
 * ====================================================================
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * .
 *
 */

package io.logspace.agent.shaded.apache.http.impl.cookie;

import io.logspace.agent.shaded.apache.http.annotation.Immutable;
import io.logspace.agent.shaded.apache.http.cookie.ClientCookie;
import io.logspace.agent.shaded.apache.http.cookie.Cookie;
import io.logspace.agent.shaded.apache.http.cookie.CookieAttributeHandler;
import io.logspace.agent.shaded.apache.http.cookie.CookieOrigin;
import io.logspace.agent.shaded.apache.http.cookie.CookieRestrictionViolationException;
import io.logspace.agent.shaded.apache.http.cookie.MalformedCookieException;
import io.logspace.agent.shaded.apache.http.cookie.SetCookie;
import io.logspace.agent.shaded.apache.http.cookie.SetCookie2;
import io.logspace.agent.shaded.apache.http.util.Args;

/**
 * "Version" cookie attribute handler for RFC 2965 cookie spec.
 *
 * @since 4.0
 */
@Immutable
public class RFC2965VersionAttributeHandler implements CookieAttributeHandler {

    public RFC2965VersionAttributeHandler() {
        super();
    }

    /**
     * Parse cookie version attribute.
     */
    public void parse(final SetCookie cookie, final String value)
            throws MalformedCookieException {
        Args.notNull(cookie, "Cookie");
        if (value == null) {
            throw new MalformedCookieException(
                    "Missing value for version attribute");
        }
        int version = -1;
        try {
            version = Integer.parseInt(value);
        } catch (final NumberFormatException e) {
            version = -1;
        }
        if (version < 0) {
            throw new MalformedCookieException("Invalid cookie version.");
        }
        cookie.setVersion(version);
    }

    /**
     * validate cookie version attribute. Version attribute is REQUIRED.
     */
    public void validate(final Cookie cookie, final CookieOrigin origin)
            throws MalformedCookieException {
        Args.notNull(cookie, "Cookie");
        if (cookie instanceof SetCookie2) {
            if (cookie instanceof ClientCookie
                    && !((ClientCookie) cookie).containsAttribute(ClientCookie.VERSION_ATTR)) {
                throw new CookieRestrictionViolationException(
                        "Violates RFC 2965. Version attribute is required.");
            }
        }
    }

    public boolean match(final Cookie cookie, final CookieOrigin origin) {
        return true;
    }

}