diff -r 000000000000 -r 6474c204b198 mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/DefaultConnectionReuseStrategy.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/DefaultConnectionReuseStrategy.java	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,173 @@
+/*
+ * ====================================================================
+ * 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;
+
+import ch.boye.httpclientandroidlib.ConnectionReuseStrategy;
+import ch.boye.httpclientandroidlib.HttpConnection;
+import ch.boye.httpclientandroidlib.HeaderIterator;
+import ch.boye.httpclientandroidlib.HttpEntity;
+import ch.boye.httpclientandroidlib.HttpResponse;
+import ch.boye.httpclientandroidlib.HttpVersion;
+import ch.boye.httpclientandroidlib.ParseException;
+import ch.boye.httpclientandroidlib.ProtocolVersion;
+import ch.boye.httpclientandroidlib.protocol.HTTP;
+import ch.boye.httpclientandroidlib.protocol.HttpContext;
+import ch.boye.httpclientandroidlib.protocol.ExecutionContext;
+import ch.boye.httpclientandroidlib.TokenIterator;
+import ch.boye.httpclientandroidlib.message.BasicTokenIterator;
+
+/**
+ * Default implementation of a strategy deciding about connection re-use.
+ * The default implementation first checks some basics, for example
+ * whether the connection is still open or whether the end of the
+ * request entity can be determined without closing the connection.
+ * If these checks pass, the tokens in the <code>Connection</code> header will
+ * be examined. In the absence of a <code>Connection</code> header, the
+ * non-standard but commonly used <code>Proxy-Connection</code> header takes
+ * it's role. A token <code>close</code> indicates that the connection cannot
+ * be reused. If there is no such token, a token <code>keep-alive</code>
+ * indicates that the connection should be re-used. If neither token is found,
+ * or if there are no <code>Connection</code> headers, the default policy for
+ * the HTTP version is applied. Since <code>HTTP/1.1</code>, connections are
+ * re-used by default. Up until <code>HTTP/1.0</code>, connections are not
+ * re-used by default.
+ *
+ * @since 4.0
+ */
+public class DefaultConnectionReuseStrategy implements ConnectionReuseStrategy {
+
+    public DefaultConnectionReuseStrategy() {
+        super();
+    }
+
+    // see interface ConnectionReuseStrategy
+    public boolean keepAlive(final HttpResponse response,
+                             final HttpContext context) {
+        if (response == null) {
+            throw new IllegalArgumentException
+                ("HTTP response may not be null.");
+        }
+        if (context == null) {
+            throw new IllegalArgumentException
+                ("HTTP context may not be null.");
+        }
+
+        HttpConnection conn = (HttpConnection)
+            context.getAttribute(ExecutionContext.HTTP_CONNECTION);
+
+        if (conn != null && !conn.isOpen())
+            return false;
+        // do NOT check for stale connection, that is an expensive operation
+
+        // Check for a self-terminating entity. If the end of the entity will
+        // be indicated by closing the connection, there is no keep-alive.
+        HttpEntity entity = response.getEntity();
+        ProtocolVersion ver = response.getStatusLine().getProtocolVersion();
+        if (entity != null) {
+            if (entity.getContentLength() < 0) {
+                if (!entity.isChunked() ||
+                    ver.lessEquals(HttpVersion.HTTP_1_0)) {
+                    // if the content length is not known and is not chunk
+                    // encoded, the connection cannot be reused
+                    return false;
+                }
+            }
+        }
+
+        // Check for the "Connection" header. If that is absent, check for
+        // the "Proxy-Connection" header. The latter is an unspecified and
+        // broken but unfortunately common extension of HTTP.
+        HeaderIterator hit = response.headerIterator(HTTP.CONN_DIRECTIVE);
+        if (!hit.hasNext())
+            hit = response.headerIterator("Proxy-Connection");
+
+        // Experimental usage of the "Connection" header in HTTP/1.0 is
+        // documented in RFC 2068, section 19.7.1. A token "keep-alive" is
+        // used to indicate that the connection should be persistent.
+        // Note that the final specification of HTTP/1.1 in RFC 2616 does not
+        // include this information. Neither is the "Connection" header
+        // mentioned in RFC 1945, which informally describes HTTP/1.0.
+        //
+        // RFC 2616 specifies "close" as the only connection token with a
+        // specific meaning: it disables persistent connections.
+        //
+        // The "Proxy-Connection" header is not formally specified anywhere,
+        // but is commonly used to carry one token, "close" or "keep-alive".
+        // The "Connection" header, on the other hand, is defined as a
+        // sequence of tokens, where each token is a header name, and the
+        // token "close" has the above-mentioned additional meaning.
+        //
+        // To get through this mess, we treat the "Proxy-Connection" header
+        // in exactly the same way as the "Connection" header, but only if
+        // the latter is missing. We scan the sequence of tokens for both
+        // "close" and "keep-alive". As "close" is specified by RFC 2068,
+        // it takes precedence and indicates a non-persistent connection.
+        // If there is no "close" but a "keep-alive", we take the hint.
+
+        if (hit.hasNext()) {
+            try {
+                TokenIterator ti = createTokenIterator(hit);
+                boolean keepalive = false;
+                while (ti.hasNext()) {
+                    final String token = ti.nextToken();
+                    if (HTTP.CONN_CLOSE.equalsIgnoreCase(token)) {
+                        return false;
+                    } else if (HTTP.CONN_KEEP_ALIVE.equalsIgnoreCase(token)) {
+                        // continue the loop, there may be a "close" afterwards
+                        keepalive = true;
+                    }
+                }
+                if (keepalive)
+                    return true;
+                // neither "close" nor "keep-alive", use default policy
+
+            } catch (ParseException px) {
+                // invalid connection header means no persistent connection
+                // we don't have logging in HttpCore, so the exception is lost
+                return false;
+            }
+        }
+
+        // default since HTTP/1.1 is persistent, before it was non-persistent
+        return !ver.lessEquals(HttpVersion.HTTP_1_0);
+    }
+
+
+    /**
+     * Creates a token iterator from a header iterator.
+     * This method can be overridden to replace the implementation of
+     * the token iterator.
+     *
+     * @param hit       the header iterator
+     *
+     * @return  the token iterator
+     */
+    protected TokenIterator createTokenIterator(HeaderIterator hit) {
+        return new BasicTokenIterator(hit);
+    }
+}