/
BasicAuthCache.java
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/
BasicAuthCache.java
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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 org.apache.hc.client5.http.impl.auth;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.hc.client5.http.SchemePortResolver;
import org.apache.hc.client5.http.auth.AuthCache;
import org.apache.hc.client5.http.auth.AuthScheme;
import org.apache.hc.client5.http.impl.DefaultSchemePortResolver;
import org.apache.hc.client5.http.routing.RoutingSupport;
import org.apache.hc.core5.annotation.Contract;
import org.apache.hc.core5.annotation.ThreadingBehavior;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.util.Args;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Default implementation of {@link AuthCache}. This implements
* expects {@link org.apache.hc.client5.http.auth.AuthScheme} to be {@link java.io.Serializable}
* in order to be cacheable.
* <p>
* Instances of this class are thread safe as of version 4.4.
* </p>
*
* @since 4.1
*/
@Contract(threading = ThreadingBehavior.SAFE_CONDITIONAL)
public class BasicAuthCache implements AuthCache {
private static final Logger LOG = LoggerFactory.getLogger(BasicAuthCache.class);
private final Map<HttpHost, byte[]> map;
private final SchemePortResolver schemePortResolver;
/**
* Default constructor.
*
* @since 4.3
*/
public BasicAuthCache(final SchemePortResolver schemePortResolver) {
super();
this.map = new ConcurrentHashMap<>();
this.schemePortResolver = schemePortResolver != null ? schemePortResolver : DefaultSchemePortResolver.INSTANCE;
}
public BasicAuthCache() {
this(null);
}
@Override
public void put(final HttpHost host, final AuthScheme authScheme) {
Args.notNull(host, "HTTP host");
if (authScheme == null) {
return;
}
if (authScheme instanceof Serializable) {
try {
final ByteArrayOutputStream buf = new ByteArrayOutputStream();
try (final ObjectOutputStream out = new ObjectOutputStream(buf)) {
out.writeObject(authScheme);
}
final HttpHost key = RoutingSupport.normalize(host, schemePortResolver);
this.map.put(key, buf.toByteArray());
} catch (final IOException ex) {
if (LOG.isWarnEnabled()) {
LOG.warn("Unexpected I/O error while serializing auth scheme", ex);
}
}
} else {
if (LOG.isDebugEnabled()) {
LOG.debug("Auth scheme {} is not serializable", authScheme.getClass());
}
}
}
@Override
public AuthScheme get(final HttpHost host) {
Args.notNull(host, "HTTP host");
final HttpHost key = RoutingSupport.normalize(host, schemePortResolver);
final byte[] bytes = this.map.get(key);
if (bytes != null) {
try {
final ByteArrayInputStream buf = new ByteArrayInputStream(bytes);
try (final ObjectInputStream in = new ObjectInputStream(buf)) {
return (AuthScheme) in.readObject();
}
} catch (final IOException ex) {
if (LOG.isWarnEnabled()) {
LOG.warn("Unexpected I/O error while de-serializing auth scheme", ex);
}
} catch (final ClassNotFoundException ex) {
if (LOG.isWarnEnabled()) {
LOG.warn("Unexpected error while de-serializing auth scheme", ex);
}
}
}
return null;
}
@Override
public void remove(final HttpHost host) {
Args.notNull(host, "HTTP host");
final HttpHost key = RoutingSupport.normalize(host, schemePortResolver);
this.map.remove(key);
}
@Override
public void clear() {
this.map.clear();
}
@Override
public String toString() {
return this.map.toString();
}
}