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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.impl.client;
import java.net.Authenticator;
import java.net.PasswordAuthentication;
import java.util.Locale;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import ch.boye.httpclientandroidlib.annotation.ThreadSafe;
import ch.boye.httpclientandroidlib.auth.AuthScope;
import ch.boye.httpclientandroidlib.auth.Credentials;
import ch.boye.httpclientandroidlib.auth.NTCredentials;
import ch.boye.httpclientandroidlib.auth.UsernamePasswordCredentials;
import ch.boye.httpclientandroidlib.client.CredentialsProvider;
import ch.boye.httpclientandroidlib.client.config.AuthSchemes;
import ch.boye.httpclientandroidlib.util.Args;
/**
* Implementation of {@link CredentialsProvider} backed by standard
* JRE {@link Authenticator}.
*
* @since 4.3
*/
@ThreadSafe
public class SystemDefaultCredentialsProvider implements CredentialsProvider {
private static final Map<String, String> SCHEME_MAP;
static {
SCHEME_MAP = new ConcurrentHashMap<String, String>();
SCHEME_MAP.put(AuthSchemes.BASIC.toUpperCase(Locale.ENGLISH), "Basic");
SCHEME_MAP.put(AuthSchemes.DIGEST.toUpperCase(Locale.ENGLISH), "Digest");
SCHEME_MAP.put(AuthSchemes.NTLM.toUpperCase(Locale.ENGLISH), "NTLM");
SCHEME_MAP.put(AuthSchemes.SPNEGO.toUpperCase(Locale.ENGLISH), "SPNEGO");
SCHEME_MAP.put(AuthSchemes.KERBEROS.toUpperCase(Locale.ENGLISH), "Kerberos");
}
private static String translateScheme(final String key) {
if (key == null) {
return null;
}
final String s = SCHEME_MAP.get(key);
return s != null ? s : key;
}
private final BasicCredentialsProvider internal;
/**
* Default constructor.
*/
public SystemDefaultCredentialsProvider() {
super();
this.internal = new BasicCredentialsProvider();
}
public void setCredentials(final AuthScope authscope, final Credentials credentials) {
internal.setCredentials(authscope, credentials);
}
private static PasswordAuthentication getSystemCreds(
final AuthScope authscope,
final Authenticator.RequestorType requestorType) {
final String hostname = authscope.getHost();
final int port = authscope.getPort();
final String protocol = port == 443 ? "https" : "http";
return Authenticator.requestPasswordAuthentication(
hostname,
null,
port,
protocol,
null,
translateScheme(authscope.getScheme()),
null,
requestorType);
}
public Credentials getCredentials(final AuthScope authscope) {
Args.notNull(authscope, "Auth scope");
final Credentials localcreds = internal.getCredentials(authscope);
if (localcreds != null) {
return localcreds;
}
if (authscope.getHost() != null) {
PasswordAuthentication systemcreds = getSystemCreds(
authscope, Authenticator.RequestorType.SERVER);
if (systemcreds == null) {
systemcreds = getSystemCreds(
authscope, Authenticator.RequestorType.PROXY);
}
if (systemcreds != null) {
final String domain = System.getProperty("http.auth.ntlm.domain");
if (domain != null) {
return new NTCredentials(
systemcreds.getUserName(),
new String(systemcreds.getPassword()),
null, domain);
} else {
if (AuthSchemes.NTLM.equalsIgnoreCase(authscope.getScheme())) {
// Domian may be specified in a fully qualified user name
return new NTCredentials(
systemcreds.getUserName(),
new String(systemcreds.getPassword()),
null, null);
} else {
return new UsernamePasswordCredentials(
systemcreds.getUserName(),
new String(systemcreds.getPassword()));
}
}
}
}
return null;
}
public void clear() {
internal.clear();
}
}
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