| /* |
| * ==================================================================== |
| * 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 |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.hc.client5.http.impl.auth; |
| |
| import org.apache.hc.client5.http.SchemePortResolver; |
| import org.apache.hc.client5.http.auth.AuthCache; |
| import org.apache.hc.client5.http.auth.AuthExchange; |
| import org.apache.hc.client5.http.auth.AuthScheme; |
| import org.apache.hc.client5.http.auth.AuthStateCacheable; |
| import org.apache.hc.client5.http.protocol.HttpClientContext; |
| import org.apache.hc.core5.annotation.Contract; |
| import org.apache.hc.core5.annotation.Internal; |
| import org.apache.hc.core5.annotation.ThreadingBehavior; |
| import org.apache.hc.core5.http.HttpHost; |
| import org.apache.hc.core5.http.protocol.HttpContext; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Utility class that implements commons aspects of the client side authentication cache keeping. |
| * |
| * @since 5.2 |
| */ |
| @Internal |
| @Contract(threading = ThreadingBehavior.STATELESS) |
| public final class AuthCacheKeeper { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(AuthCacheKeeper.class); |
| |
| private final SchemePortResolver schemePortResolver; |
| |
| public AuthCacheKeeper(final SchemePortResolver schemePortResolver) { |
| this.schemePortResolver = schemePortResolver; |
| } |
| |
| public void updateOnChallenge(final HttpHost host, |
| final String pathPrefix, |
| final AuthExchange authExchange, |
| final HttpContext context) { |
| clearCache(host, pathPrefix, HttpClientContext.cast(context)); |
| } |
| |
| public void updateOnNoChallenge(final HttpHost host, |
| final String pathPrefix, |
| final AuthExchange authExchange, |
| final HttpContext context) { |
| if (authExchange.getState() == AuthExchange.State.SUCCESS) { |
| updateCache(host, pathPrefix, authExchange.getAuthScheme(), HttpClientContext.cast(context)); |
| } |
| } |
| |
| public void updateOnResponse(final HttpHost host, |
| final String pathPrefix, |
| final AuthExchange authExchange, |
| final HttpContext context) { |
| if (authExchange.getState() == AuthExchange.State.FAILURE) { |
| clearCache(host, pathPrefix, HttpClientContext.cast(context)); |
| } |
| } |
| |
| public void loadPreemptively(final HttpHost host, |
| final String pathPrefix, |
| final AuthExchange authExchange, |
| final HttpContext context) { |
| if (authExchange.getState() == AuthExchange.State.UNCHALLENGED) { |
| AuthScheme authScheme = loadFromCache(host, pathPrefix, HttpClientContext.cast(context)); |
| if (authScheme == null && pathPrefix != null) { |
| authScheme = loadFromCache(host, null, HttpClientContext.cast(context)); |
| } |
| if (authScheme != null) { |
| authExchange.select(authScheme); |
| } |
| } |
| } |
| |
| private AuthScheme loadFromCache(final HttpHost host, |
| final String pathPrefix, |
| final HttpClientContext clientContext) { |
| final AuthCache authCache = clientContext.getAuthCache(); |
| if (authCache != null) { |
| final AuthScheme authScheme = authCache.get(host, pathPrefix); |
| if (authScheme != null) { |
| if (LOG.isDebugEnabled()) { |
| final String exchangeId = clientContext.getExchangeId(); |
| LOG.debug("{} Re-using cached '{}' auth scheme for {}{}", exchangeId, authScheme.getName(), host, |
| pathPrefix != null ? pathPrefix : ""); |
| } |
| return authScheme; |
| } |
| } |
| return null; |
| } |
| |
| private void updateCache(final HttpHost host, |
| final String pathPrefix, |
| final AuthScheme authScheme, |
| final HttpClientContext clientContext) { |
| final boolean cacheable = authScheme.getClass().getAnnotation(AuthStateCacheable.class) != null; |
| if (cacheable) { |
| AuthCache authCache = clientContext.getAuthCache(); |
| if (authCache == null) { |
| authCache = new BasicAuthCache(schemePortResolver); |
| clientContext.setAuthCache(authCache); |
| } |
| if (LOG.isDebugEnabled()) { |
| final String exchangeId = clientContext.getExchangeId(); |
| LOG.debug("{} Caching '{}' auth scheme for {}{}", exchangeId, authScheme.getName(), host, |
| pathPrefix != null ? pathPrefix : ""); |
| } |
| authCache.put(host, pathPrefix, authScheme); |
| } |
| } |
| |
| private void clearCache(final HttpHost host, |
| final String pathPrefix, |
| final HttpClientContext clientContext) { |
| final AuthCache authCache = clientContext.getAuthCache(); |
| if (authCache != null) { |
| if (LOG.isDebugEnabled()) { |
| final String exchangeId = clientContext.getExchangeId(); |
| LOG.debug("{} Clearing cached auth scheme for {}{}", exchangeId, host, |
| pathPrefix != null ? pathPrefix : ""); |
| } |
| authCache.remove(host, pathPrefix); |
| } |
| } |
| |
| } |