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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
+ * <http://www.apache.org/>.
+ *
+ */
+
+package ch.boye.httpclientandroidlib.client.protocol;
+
+import java.io.IOException;
+
+import ch.boye.httpclientandroidlib.androidextra.HttpClientAndroidLog;
+/* LogFactory removed by HttpClient for Android script. */
+import ch.boye.httpclientandroidlib.HttpException;
+import ch.boye.httpclientandroidlib.HttpHost;
+import ch.boye.httpclientandroidlib.HttpResponse;
+import ch.boye.httpclientandroidlib.HttpResponseInterceptor;
+import ch.boye.httpclientandroidlib.annotation.Immutable;
+import ch.boye.httpclientandroidlib.auth.AuthScheme;
+import ch.boye.httpclientandroidlib.auth.AuthState;
+import ch.boye.httpclientandroidlib.client.AuthCache;
+import ch.boye.httpclientandroidlib.client.params.AuthPolicy;
+import ch.boye.httpclientandroidlib.conn.scheme.Scheme;
+import ch.boye.httpclientandroidlib.conn.scheme.SchemeRegistry;
+import ch.boye.httpclientandroidlib.impl.client.BasicAuthCache;
+import ch.boye.httpclientandroidlib.protocol.ExecutionContext;
+import ch.boye.httpclientandroidlib.protocol.HttpContext;
+import ch.boye.httpclientandroidlib.util.Args;
+
+/**
+ * Response interceptor that adds successfully completed {@link AuthScheme}s
+ * to the local {@link AuthCache} instance. Cached {@link AuthScheme}s can be
+ * re-used when executing requests against known hosts, thus avoiding
+ * additional authentication round-trips.
+ *
+ * @since 4.1
+ *
+ * @deprecated (4.2) use {@link ch.boye.httpclientandroidlib.client.AuthenticationStrategy}
+ */
+@Immutable
+@Deprecated
+public class ResponseAuthCache implements HttpResponseInterceptor {
+
+ public HttpClientAndroidLog log = new HttpClientAndroidLog(getClass());
+
+ public ResponseAuthCache() {
+ super();
+ }
+
+ public void process(final HttpResponse response, final HttpContext context)
+ throws HttpException, IOException {
+ Args.notNull(response, "HTTP request");
+ Args.notNull(context, "HTTP context");
+ AuthCache authCache = (AuthCache) context.getAttribute(ClientContext.AUTH_CACHE);
+
+ HttpHost target = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
+ final AuthState targetState = (AuthState) context.getAttribute(ClientContext.TARGET_AUTH_STATE);
+ if (target != null && targetState != null) {
+ if (this.log.isDebugEnabled()) {
+ this.log.debug("Target auth state: " + targetState.getState());
+ }
+ if (isCachable(targetState)) {
+ final SchemeRegistry schemeRegistry = (SchemeRegistry) context.getAttribute(
+ ClientContext.SCHEME_REGISTRY);
+ if (target.getPort() < 0) {
+ final Scheme scheme = schemeRegistry.getScheme(target);
+ target = new HttpHost(target.getHostName(),
+ scheme.resolvePort(target.getPort()), target.getSchemeName());
+ }
+ if (authCache == null) {
+ authCache = new BasicAuthCache();
+ context.setAttribute(ClientContext.AUTH_CACHE, authCache);
+ }
+ switch (targetState.getState()) {
+ case CHALLENGED:
+ cache(authCache, target, targetState.getAuthScheme());
+ break;
+ case FAILURE:
+ uncache(authCache, target, targetState.getAuthScheme());
+ }
+ }
+ }
+
+ final HttpHost proxy = (HttpHost) context.getAttribute(ExecutionContext.HTTP_PROXY_HOST);
+ final AuthState proxyState = (AuthState) context.getAttribute(ClientContext.PROXY_AUTH_STATE);
+ if (proxy != null && proxyState != null) {
+ if (this.log.isDebugEnabled()) {
+ this.log.debug("Proxy auth state: " + proxyState.getState());
+ }
+ if (isCachable(proxyState)) {
+ if (authCache == null) {
+ authCache = new BasicAuthCache();
+ context.setAttribute(ClientContext.AUTH_CACHE, authCache);
+ }
+ switch (proxyState.getState()) {
+ case CHALLENGED:
+ cache(authCache, proxy, proxyState.getAuthScheme());
+ break;
+ case FAILURE:
+ uncache(authCache, proxy, proxyState.getAuthScheme());
+ }
+ }
+ }
+ }
+
+ private boolean isCachable(final AuthState authState) {
+ final AuthScheme authScheme = authState.getAuthScheme();
+ if (authScheme == null || !authScheme.isComplete()) {
+ return false;
+ }
+ final String schemeName = authScheme.getSchemeName();
+ return schemeName.equalsIgnoreCase(AuthPolicy.BASIC) ||
+ schemeName.equalsIgnoreCase(AuthPolicy.DIGEST);
+ }
+
+ private void cache(final AuthCache authCache, final HttpHost host, final AuthScheme authScheme) {
+ if (this.log.isDebugEnabled()) {
+ this.log.debug("Caching '" + authScheme.getSchemeName() +
+ "' auth scheme for " + host);
+ }
+ authCache.put(host, authScheme);
+ }
+
+ private void uncache(final AuthCache authCache, final HttpHost host, final AuthScheme authScheme) {
+ if (this.log.isDebugEnabled()) {
+ this.log.debug("Removing from cache '" + authScheme.getSchemeName() +
+ "' auth scheme for " + host);
+ }
+ authCache.remove(host);
+ }
+}