mirror of https://github.com/etesync/android
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
3.3 KiB
95 lines
3.3 KiB
/*
|
|
* ====================================================================
|
|
* 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 org.apache.http.client.protocol;
|
|
|
|
import java.io.IOException;
|
|
|
|
import android.util.Log;
|
|
|
|
import org.apache.http.HttpException;
|
|
import org.apache.http.HttpRequest;
|
|
import org.apache.http.HttpRequestInterceptor;
|
|
import org.apache.http.annotation.Immutable;
|
|
import org.apache.http.conn.routing.RouteInfo;
|
|
import org.apache.http.protocol.HTTP;
|
|
import org.apache.http.protocol.HttpContext;
|
|
import org.apache.http.util.Args;
|
|
|
|
/**
|
|
* This protocol interceptor is responsible for adding <code>Connection</code>
|
|
* or <code>Proxy-Connection</code> headers to the outgoing requests, which
|
|
* is essential for managing persistence of <code>HTTP/1.0</code> connections.
|
|
*
|
|
* @since 4.0
|
|
*/
|
|
@Immutable
|
|
public class RequestClientConnControl implements HttpRequestInterceptor {
|
|
|
|
private final static String TAG = "HttpClient";
|
|
|
|
private static final String PROXY_CONN_DIRECTIVE = "Proxy-Connection";
|
|
|
|
public RequestClientConnControl() {
|
|
super();
|
|
}
|
|
|
|
public void process(final HttpRequest request, final HttpContext context)
|
|
throws HttpException, IOException {
|
|
Args.notNull(request, "HTTP request");
|
|
|
|
final String method = request.getRequestLine().getMethod();
|
|
if (method.equalsIgnoreCase("CONNECT")) {
|
|
request.setHeader(PROXY_CONN_DIRECTIVE, HTTP.CONN_KEEP_ALIVE);
|
|
return;
|
|
}
|
|
|
|
final HttpClientContext clientContext = HttpClientContext.adapt(context);
|
|
|
|
// Obtain the client connection (required)
|
|
final RouteInfo route = clientContext.getHttpRoute();
|
|
if (route == null) {
|
|
if (Log.isLoggable(TAG, Log.DEBUG)) {
|
|
Log.d(TAG, "Connection route not set in the context");
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (route.getHopCount() == 1 || route.isTunnelled()) {
|
|
if (!request.containsHeader(HTTP.CONN_DIRECTIVE)) {
|
|
request.addHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_KEEP_ALIVE);
|
|
}
|
|
}
|
|
if (route.getHopCount() == 2 && !route.isTunnelled()) {
|
|
if (!request.containsHeader(PROXY_CONN_DIRECTIVE)) {
|
|
request.addHeader(PROXY_CONN_DIRECTIVE, HTTP.CONN_KEEP_ALIVE);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|