1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/RequestExpectContinue.java Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,78 @@ 1.4 +/* 1.5 + * ==================================================================== 1.6 + * Licensed to the Apache Software Foundation (ASF) under one 1.7 + * or more contributor license agreements. See the NOTICE file 1.8 + * distributed with this work for additional information 1.9 + * regarding copyright ownership. The ASF licenses this file 1.10 + * to you under the Apache License, Version 2.0 (the 1.11 + * "License"); you may not use this file except in compliance 1.12 + * with the License. You may obtain a copy of the License at 1.13 + * 1.14 + * http://www.apache.org/licenses/LICENSE-2.0 1.15 + * 1.16 + * Unless required by applicable law or agreed to in writing, 1.17 + * software distributed under the License is distributed on an 1.18 + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 1.19 + * KIND, either express or implied. See the License for the 1.20 + * specific language governing permissions and limitations 1.21 + * under the License. 1.22 + * ==================================================================== 1.23 + * 1.24 + * This software consists of voluntary contributions made by many 1.25 + * individuals on behalf of the Apache Software Foundation. For more 1.26 + * information on the Apache Software Foundation, please see 1.27 + * <http://www.apache.org/>. 1.28 + * 1.29 + */ 1.30 + 1.31 +package ch.boye.httpclientandroidlib.protocol; 1.32 + 1.33 +import java.io.IOException; 1.34 + 1.35 +import ch.boye.httpclientandroidlib.HttpEntity; 1.36 +import ch.boye.httpclientandroidlib.HttpEntityEnclosingRequest; 1.37 +import ch.boye.httpclientandroidlib.HttpException; 1.38 +import ch.boye.httpclientandroidlib.HttpRequest; 1.39 +import ch.boye.httpclientandroidlib.HttpRequestInterceptor; 1.40 +import ch.boye.httpclientandroidlib.HttpVersion; 1.41 +import ch.boye.httpclientandroidlib.ProtocolVersion; 1.42 +import ch.boye.httpclientandroidlib.params.HttpProtocolParams; 1.43 + 1.44 +/** 1.45 + * RequestExpectContinue is responsible for enabling the 'expect-continue' 1.46 + * handshake by adding <code>Expect</code> header. This interceptor is 1.47 + * recommended for client side protocol processors. 1.48 + * <p> 1.49 + * The following parameters can be used to customize the behavior of this 1.50 + * class: 1.51 + * <ul> 1.52 + * <li>{@link ch.boye.httpclientandroidlib.params.CoreProtocolPNames#USE_EXPECT_CONTINUE}</li> 1.53 + * </ul> 1.54 + * 1.55 + * @since 4.0 1.56 + */ 1.57 +public class RequestExpectContinue implements HttpRequestInterceptor { 1.58 + 1.59 + public RequestExpectContinue() { 1.60 + super(); 1.61 + } 1.62 + 1.63 + public void process(final HttpRequest request, final HttpContext context) 1.64 + throws HttpException, IOException { 1.65 + if (request == null) { 1.66 + throw new IllegalArgumentException("HTTP request may not be null"); 1.67 + } 1.68 + if (request instanceof HttpEntityEnclosingRequest) { 1.69 + HttpEntity entity = ((HttpEntityEnclosingRequest)request).getEntity(); 1.70 + // Do not send the expect header if request body is known to be empty 1.71 + if (entity != null && entity.getContentLength() != 0) { 1.72 + ProtocolVersion ver = request.getRequestLine().getProtocolVersion(); 1.73 + if (HttpProtocolParams.useExpectContinue(request.getParams()) 1.74 + && !ver.lessEquals(HttpVersion.HTTP_1_0)) { 1.75 + request.addHeader(HTTP.EXPECT_DIRECTIVE, HTTP.EXPECT_CONTINUE); 1.76 + } 1.77 + } 1.78 + } 1.79 + } 1.80 + 1.81 +}