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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);
}
}
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