diff -r 000000000000 -r 6474c204b198 mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/client/AbstractAuthenticationHandler.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/client/AbstractAuthenticationHandler.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,188 @@
+/*
+ * ====================================================================
+ * 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.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+
+import ch.boye.httpclientandroidlib.androidextra.HttpClientAndroidLog;
+/* LogFactory removed by HttpClient for Android script. */
+import ch.boye.httpclientandroidlib.FormattedHeader;
+import ch.boye.httpclientandroidlib.Header;
+import ch.boye.httpclientandroidlib.HttpResponse;
+import ch.boye.httpclientandroidlib.annotation.Immutable;
+import ch.boye.httpclientandroidlib.auth.AuthScheme;
+import ch.boye.httpclientandroidlib.auth.AuthSchemeRegistry;
+import ch.boye.httpclientandroidlib.auth.AuthenticationException;
+import ch.boye.httpclientandroidlib.auth.MalformedChallengeException;
+import ch.boye.httpclientandroidlib.client.AuthenticationHandler;
+import ch.boye.httpclientandroidlib.client.params.AuthPolicy;
+import ch.boye.httpclientandroidlib.client.protocol.ClientContext;
+import ch.boye.httpclientandroidlib.protocol.HTTP;
+import ch.boye.httpclientandroidlib.protocol.HttpContext;
+import ch.boye.httpclientandroidlib.util.CharArrayBuffer;
+
+/**
+ * Base class for {@link AuthenticationHandler} implementations.
+ *
+ * @since 4.0
+ */
+@Immutable
+public abstract class AbstractAuthenticationHandler implements AuthenticationHandler {
+
+    public HttpClientAndroidLog log = new HttpClientAndroidLog(getClass());
+
+    private static final List<String> DEFAULT_SCHEME_PRIORITY =
+        Collections.unmodifiableList(Arrays.asList(new String[] {
+                AuthPolicy.SPNEGO,
+                AuthPolicy.NTLM,
+                AuthPolicy.DIGEST,
+                AuthPolicy.BASIC
+    }));
+
+    public AbstractAuthenticationHandler() {
+        super();
+    }
+
+    protected Map<String, Header> parseChallenges(
+            final Header[] headers) throws MalformedChallengeException {
+
+        Map<String, Header> map = new HashMap<String, Header>(headers.length);
+        for (Header header : headers) {
+            CharArrayBuffer buffer;
+            int pos;
+            if (header instanceof FormattedHeader) {
+                buffer = ((FormattedHeader) header).getBuffer();
+                pos = ((FormattedHeader) header).getValuePos();
+            } else {
+                String s = header.getValue();
+                if (s == null) {
+                    throw new MalformedChallengeException("Header value is null");
+                }
+                buffer = new CharArrayBuffer(s.length());
+                buffer.append(s);
+                pos = 0;
+            }
+            while (pos < buffer.length() && HTTP.isWhitespace(buffer.charAt(pos))) {
+                pos++;
+            }
+            int beginIndex = pos;
+            while (pos < buffer.length() && !HTTP.isWhitespace(buffer.charAt(pos))) {
+                pos++;
+            }
+            int endIndex = pos;
+            String s = buffer.substring(beginIndex, endIndex);
+            map.put(s.toLowerCase(Locale.ENGLISH), header);
+        }
+        return map;
+    }
+
+    /**
+     * Returns default list of auth scheme names in their order of preference.
+     *
+     * @return list of auth scheme names
+     */
+    protected List<String> getAuthPreferences() {
+        return DEFAULT_SCHEME_PRIORITY;
+    }
+
+    /**
+     * Returns default list of auth scheme names in their order of preference
+     * based on the HTTP response and the current execution context.
+     *
+     * @param response HTTP response.
+     * @param context HTTP execution context.
+     *
+     * @since 4.1
+     */
+    protected List<String> getAuthPreferences(
+            final HttpResponse response,
+            final HttpContext context) {
+        return getAuthPreferences();
+    }
+
+    public AuthScheme selectScheme(
+            final Map<String, Header> challenges,
+            final HttpResponse response,
+            final HttpContext context) throws AuthenticationException {
+
+        AuthSchemeRegistry registry = (AuthSchemeRegistry) context.getAttribute(
+                ClientContext.AUTHSCHEME_REGISTRY);
+        if (registry == null) {
+            throw new IllegalStateException("AuthScheme registry not set in HTTP context");
+        }
+
+        Collection<String> authPrefs = getAuthPreferences(response, context);
+        if (authPrefs == null) {
+            authPrefs = DEFAULT_SCHEME_PRIORITY;
+        }
+
+        if (this.log.isDebugEnabled()) {
+            this.log.debug("Authentication schemes in the order of preference: "
+                + authPrefs);
+        }
+
+        AuthScheme authScheme = null;
+        for (String id: authPrefs) {
+            Header challenge = challenges.get(id.toLowerCase(Locale.ENGLISH));
+
+            if (challenge != null) {
+                if (this.log.isDebugEnabled()) {
+                    this.log.debug(id + " authentication scheme selected");
+                }
+                try {
+                    authScheme = registry.getAuthScheme(id, response.getParams());
+                    break;
+                } catch (IllegalStateException e) {
+                    if (this.log.isWarnEnabled()) {
+                        this.log.warn("Authentication scheme " + id + " not supported");
+                        // Try again
+                    }
+                }
+            } else {
+                if (this.log.isDebugEnabled()) {
+                    this.log.debug("Challenge for " + id + " authentication scheme not available");
+                    // Try again
+                }
+            }
+        }
+        if (authScheme == null) {
+            // If none selected, something is wrong
+            throw new AuthenticationException(
+                "Unable to respond to any of these challenges: "
+                    + challenges);
+        }
+        return authScheme;
+    }
+
+}