diff -r 000000000000 -r 6474c204b198 mobile/android/thirdparty/ch/boye/httpclientandroidlib/auth/AuthScheme.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/auth/AuthScheme.java	Wed Dec 31 06:09:35 2014 +0100
@@ -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.auth;
+
+import ch.boye.httpclientandroidlib.Header;
+import ch.boye.httpclientandroidlib.HttpRequest;
+
+/**
+ * This interface represents an abstract challenge-response oriented
+ * authentication scheme.
+ * <p>
+ * An authentication scheme should be able to support the following
+ * functions:
+ * <ul>
+ *   <li>Parse and process the challenge sent by the target server
+ *       in response to request for a protected resource
+ *   <li>Provide its textual designation
+ *   <li>Provide its parameters, if available
+ *   <li>Provide the realm this authentication scheme is applicable to,
+ *       if available
+ *   <li>Generate authorization string for the given set of credentials
+ *       and the HTTP request in response to the authorization challenge.
+ * </ul>
+ * <p>
+ * Authentication schemes may be stateful involving a series of
+ * challenge-response exchanges.
+ * <p>
+ * IMPORTANT: implementations of this interface MUST also implement {@link ContextAwareAuthScheme}
+ * interface in order to remain API compatible with newer versions of HttpClient.
+ *
+ * @since 4.0
+ */
+
+public interface AuthScheme {
+
+    /**
+     * Processes the given challenge token. Some authentication schemes
+     * may involve multiple challenge-response exchanges. Such schemes must be able
+     * to maintain the state information when dealing with sequential challenges
+     *
+     * @param header the challenge header
+     */
+    void processChallenge(final Header header) throws MalformedChallengeException;
+
+    /**
+     * Returns textual designation of the given authentication scheme.
+     *
+     * @return the name of the given authentication scheme
+     */
+    String getSchemeName();
+
+    /**
+     * Returns authentication parameter with the given name, if available.
+     *
+     * @param name The name of the parameter to be returned
+     *
+     * @return the parameter with the given name
+     */
+    String getParameter(final String name);
+
+    /**
+     * Returns authentication realm. If the concept of an authentication
+     * realm is not applicable to the given authentication scheme, returns
+     * <code>null</code>.
+     *
+     * @return the authentication realm
+     */
+    String getRealm();
+
+    /**
+     * Tests if the authentication scheme is provides authorization on a per
+     * connection basis instead of usual per request basis
+     *
+     * @return <tt>true</tt> if the scheme is connection based, <tt>false</tt>
+     * if the scheme is request based.
+     */
+    boolean isConnectionBased();
+
+    /**
+     * Authentication process may involve a series of challenge-response exchanges.
+     * This method tests if the authorization process has been completed, either
+     * successfully or unsuccessfully, that is, all the required authorization
+     * challenges have been processed in their entirety.
+     *
+     * @return <tt>true</tt> if the authentication process has been completed,
+     * <tt>false</tt> otherwise.
+     */
+    boolean isComplete();
+
+    /**
+     * Produces an authorization string for the given set of {@link Credentials}.
+     *
+     * @param credentials The set of credentials to be used for athentication
+     * @param request The request being authenticated
+     * @throws AuthenticationException if authorization string cannot
+     *   be generated due to an authentication failure
+     *
+     * @return the authorization string
+     *
+     * @deprecated Use {@link ContextAwareAuthScheme#authenticate(Credentials, HttpRequest, ch.boye.httpclientandroidlib.protocol.HttpContext)}
+     */
+    @Deprecated
+    Header authenticate(Credentials credentials, HttpRequest request)
+            throws AuthenticationException;
+
+}