1 files changed, 105 insertions, 0 deletions
diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/ResponseConnControl.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/ResponseConnControl.java
new file mode 100644
index 000000000..29014e32f
--- /dev/null
+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/ResponseConnControl.java
@@ -0,0 +1,105 @@
+/*
+ * ====================================================================
+ * 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.protocol;
+
+import java.io.IOException;
+
+import ch.boye.httpclientandroidlib.Header;
+import ch.boye.httpclientandroidlib.HttpEntity;
+import ch.boye.httpclientandroidlib.HttpException;
+import ch.boye.httpclientandroidlib.HttpRequest;
+import ch.boye.httpclientandroidlib.HttpResponse;
+import ch.boye.httpclientandroidlib.HttpResponseInterceptor;
+import ch.boye.httpclientandroidlib.HttpStatus;
+import ch.boye.httpclientandroidlib.HttpVersion;
+import ch.boye.httpclientandroidlib.ProtocolVersion;
+import ch.boye.httpclientandroidlib.annotation.Immutable;
+import ch.boye.httpclientandroidlib.util.Args;
+
+/**
+ * ResponseConnControl is responsible for adding <code>Connection</code> header
+ * to the outgoing responses, which is essential for managing persistence of
+ * <code>HTTP/1.0</code> connections. This interceptor is recommended for
+ * server side protocol processors.
+ *
+ * @since 4.0
+ */
+@Immutable
+public class ResponseConnControl implements HttpResponseInterceptor {
+
+    public ResponseConnControl() {
+        super();
+    }
+
+    public void process(final HttpResponse response, final HttpContext context)
+            throws HttpException, IOException {
+        Args.notNull(response, "HTTP response");
+
+        final HttpCoreContext corecontext = HttpCoreContext.adapt(context);
+
+        // Always drop connection after certain type of responses
+        final int status = response.getStatusLine().getStatusCode();
+        if (status == HttpStatus.SC_BAD_REQUEST ||
+                status == HttpStatus.SC_REQUEST_TIMEOUT ||
+                status == HttpStatus.SC_LENGTH_REQUIRED ||
+                status == HttpStatus.SC_REQUEST_TOO_LONG ||
+                status == HttpStatus.SC_REQUEST_URI_TOO_LONG ||
+                status == HttpStatus.SC_SERVICE_UNAVAILABLE ||
+                status == HttpStatus.SC_NOT_IMPLEMENTED) {
+            response.setHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_CLOSE);
+            return;
+        }
+        final Header explicit = response.getFirstHeader(HTTP.CONN_DIRECTIVE);
+        if (explicit != null && HTTP.CONN_CLOSE.equalsIgnoreCase(explicit.getValue())) {
+            // Connection persistence explicitly disabled
+            return;
+        }
+        // Always drop connection for HTTP/1.0 responses and below
+        // if the content body cannot be correctly delimited
+        final HttpEntity entity = response.getEntity();
+        if (entity != null) {
+            final ProtocolVersion ver = response.getStatusLine().getProtocolVersion();
+            if (entity.getContentLength() < 0 &&
+                    (!entity.isChunked() || ver.lessEquals(HttpVersion.HTTP_1_0))) {
+                response.setHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_CLOSE);
+                return;
+            }
+        }
+        // Drop connection if requested by the client or request was <= 1.0
+        final HttpRequest request = corecontext.getRequest();
+        if (request != null) {
+            final Header header = request.getFirstHeader(HTTP.CONN_DIRECTIVE);
+            if (header != null) {
+                response.setHeader(HTTP.CONN_DIRECTIVE, header.getValue());
+            } else if (request.getProtocolVersion().lessEquals(HttpVersion.HTTP_1_0)) {
+                response.setHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_CLOSE);
+            }
+        }
+    }
+
+}