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diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/AuthenticationStrategy.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/AuthenticationStrategy.java
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+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/AuthenticationStrategy.java
@@ -0,0 +1,130 @@
+/*
+ * ====================================================================
+ * 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;
+
+import java.util.Map;
+import java.util.Queue;
+
+import ch.boye.httpclientandroidlib.Header;
+import ch.boye.httpclientandroidlib.HttpHost;
+import ch.boye.httpclientandroidlib.HttpResponse;
+import ch.boye.httpclientandroidlib.auth.AuthOption;
+import ch.boye.httpclientandroidlib.auth.AuthScheme;
+import ch.boye.httpclientandroidlib.auth.MalformedChallengeException;
+import ch.boye.httpclientandroidlib.protocol.HttpContext;
+
+/**
+/**
+ * A handler for determining if an HTTP response represents an authentication challenge that was
+ * sent back to the client as a result of authentication failure.
+ * <p>
+ * Implementations of this interface must be thread-safe. Access to shared data must be
+ * synchronized as methods of this interface may be executed from multiple threads.
+ *
+ * @since 4.2
+ */
+public interface AuthenticationStrategy {
+
+    /**
+     * Determines if the given HTTP response response represents
+     * an authentication challenge that was sent back as a result
+     * of authentication failure.
+     *
+     * @param authhost authentication host.
+     * @param response HTTP response.
+     * @param context HTTP context.
+     * @return <code>true</code> if user authentication is required,
+     *   <code>false</code> otherwise.
+     */
+    boolean isAuthenticationRequested(
+            HttpHost authhost,
+            HttpResponse response,
+            HttpContext context);
+
+    /**
+     * Extracts from the given HTTP response a collection of authentication
+     * challenges, each of which represents an authentication scheme supported
+     * by the authentication host.
+     *
+     * @param authhost authentication host.
+     * @param response HTTP response.
+     * @param context HTTP context.
+     * @return a collection of challenges keyed by names of corresponding
+     * authentication schemes.
+     * @throws MalformedChallengeException if one of the authentication
+     *  challenges is not valid or malformed.
+     */
+    Map<String, Header> getChallenges(
+            HttpHost authhost,
+            HttpResponse response,
+            HttpContext context) throws MalformedChallengeException;
+
+    /**
+     * Selects one authentication challenge out of all available and
+     * creates and generates {@link AuthOption} instance capable of
+     * processing that challenge.
+     *
+     * @param challenges collection of challenges.
+     * @param authhost authentication host.
+     * @param response HTTP response.
+     * @param context HTTP context.
+     * @return authentication auth schemes that can be used for authentication. Can be empty.
+     * @throws MalformedChallengeException if one of the authentication
+     *  challenges is not valid or malformed.
+     */
+    Queue<AuthOption> select(
+            Map<String, Header> challenges,
+            HttpHost authhost,
+            HttpResponse response,
+            HttpContext context) throws MalformedChallengeException;
+
+    /**
+     * Callback invoked in case of successful authentication.
+     *
+     * @param authhost authentication host.
+     * @param authScheme authentication scheme used.
+     * @param context HTTP context.
+     */
+    void authSucceeded(
+            HttpHost authhost,
+            AuthScheme authScheme,
+            HttpContext context);
+
+    /**
+     * Callback invoked in case of unsuccessful authentication.
+     *
+     * @param authhost authentication host.
+     * @param authScheme authentication scheme used.
+     * @param context HTTP context.
+     */
+    void authFailed(
+            HttpHost authhost,
+            AuthScheme authScheme,
+            HttpContext context);
+
+}