001/*
002 * The contents of this file are subject to the terms of the Common Development and
003 * Distribution License (the License). You may not use this file except in compliance with the
004 * License.
005 *
006 * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
007 * specific language governing permission and limitations under the License.
008 *
009 * When distributing Covered Software, include this CDDL Header Notice in each file and include
010 * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
011 * Header, with the fields enclosed by brackets [] replaced by your own identifying
012 * information: "Portions copyright [year] [name of copyright owner]".
013 *
014 * Copyright 2015 ForgeRock AS.
015 */
016
017package org.forgerock.http.apache;
018
019import java.util.Collections;
020import java.util.LinkedList;
021import java.util.Map;
022import java.util.Queue;
023
024import org.apache.http.Header;
025import org.apache.http.HttpHost;
026import org.apache.http.HttpResponse;
027import org.apache.http.auth.AuthOption;
028import org.apache.http.auth.AuthScheme;
029import org.apache.http.auth.MalformedChallengeException;
030import org.apache.http.client.AuthenticationStrategy;
031import org.apache.http.protocol.HttpContext;
032
033/**
034 * An authentication strategy that never performs authentication.
035 */
036public final class NoAuthenticationStrategy implements AuthenticationStrategy {
037
038    /**
039     * An {@link AuthenticationStrategy} singleton instance that never performs authentication.
040     */
041    public static final AuthenticationStrategy INSTANCE = new NoAuthenticationStrategy();
042
043    /**
044     * Singleton only.
045     */
046    private NoAuthenticationStrategy() { }
047
048    @Override
049    public void authFailed(final HttpHost host, final AuthScheme authScheme, final HttpContext context) {
050        // Nothing to do.
051    }
052
053    @Override
054    public void authSucceeded(final HttpHost host, final AuthScheme authScheme, final HttpContext context) {
055        // Nothing to do.
056    }
057
058    @Override
059    public Map<String, Header> getChallenges(final HttpHost host, final HttpResponse response,
060            final HttpContext context) throws MalformedChallengeException {
061        return Collections.emptyMap();
062    }
063
064    @Override
065    public boolean isAuthenticationRequested(final HttpHost host, final HttpResponse response,
066            final HttpContext context) {
067        return false;
068    }
069
070    @Override
071    public Queue<AuthOption> select(final Map<String, Header> challenges, final HttpHost host,
072            final HttpResponse response, final HttpContext context) throws MalformedChallengeException {
073        return new LinkedList<>();
074    }
075}