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102 lines
3.9 KiB
Java
102 lines
3.9 KiB
Java
/*
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* ====================================================================
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package ch.boye.httpclientandroidlib.impl.client;
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import java.security.Principal;
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import javax.net.ssl.SSLSession;
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import ch.boye.httpclientandroidlib.annotation.Immutable;
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import ch.boye.httpclientandroidlib.auth.AuthScheme;
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import ch.boye.httpclientandroidlib.auth.AuthState;
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import ch.boye.httpclientandroidlib.auth.Credentials;
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import ch.boye.httpclientandroidlib.client.UserTokenHandler;
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import ch.boye.httpclientandroidlib.client.protocol.ClientContext;
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import ch.boye.httpclientandroidlib.conn.HttpRoutedConnection;
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import ch.boye.httpclientandroidlib.protocol.ExecutionContext;
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import ch.boye.httpclientandroidlib.protocol.HttpContext;
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/**
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* Default implementation of {@link UserTokenHandler}. This class will use
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* an instance of {@link Principal} as a state object for HTTP connections,
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* if it can be obtained from the given execution context. This helps ensure
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* persistent connections created with a particular user identity within
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* a particular security context can be reused by the same user only.
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* <p>
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* DefaultUserTokenHandler will use the user principle of connection
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* based authentication schemes such as NTLM or that of the SSL session
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* with the client authentication turned on. If both are unavailable,
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* <code>null</code> token will be returned.
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*
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* @since 4.0
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*/
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@Immutable
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public class DefaultUserTokenHandler implements UserTokenHandler {
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public Object getUserToken(final HttpContext context) {
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Principal userPrincipal = null;
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AuthState targetAuthState = (AuthState) context.getAttribute(
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ClientContext.TARGET_AUTH_STATE);
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if (targetAuthState != null) {
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userPrincipal = getAuthPrincipal(targetAuthState);
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if (userPrincipal == null) {
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AuthState proxyAuthState = (AuthState) context.getAttribute(
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ClientContext.PROXY_AUTH_STATE);
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userPrincipal = getAuthPrincipal(proxyAuthState);
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}
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}
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if (userPrincipal == null) {
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HttpRoutedConnection conn = (HttpRoutedConnection) context.getAttribute(
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ExecutionContext.HTTP_CONNECTION);
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if (conn.isOpen()) {
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SSLSession sslsession = conn.getSSLSession();
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if (sslsession != null) {
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userPrincipal = sslsession.getLocalPrincipal();
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}
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}
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}
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return userPrincipal;
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}
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private static Principal getAuthPrincipal(final AuthState authState) {
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AuthScheme scheme = authState.getAuthScheme();
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if (scheme != null && scheme.isComplete() && scheme.isConnectionBased()) {
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Credentials creds = authState.getCredentials();
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if (creds != null) {
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return creds.getUserPrincipal();
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}
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}
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return null;
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}
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}
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