mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/RequestExpectContinue.java

Wed, 31 Dec 2014 07:22:50 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 07:22:50 +0100
branch
TOR_BUG_3246
changeset 4
fc2d59ddac77
permissions
-rw-r--r--

Correct previous dual key logic pending first delivery installment.

michael@0 1 /*
michael@0 2 * ====================================================================
michael@0 3 * Licensed to the Apache Software Foundation (ASF) under one
michael@0 4 * or more contributor license agreements. See the NOTICE file
michael@0 5 * distributed with this work for additional information
michael@0 6 * regarding copyright ownership. The ASF licenses this file
michael@0 7 * to you under the Apache License, Version 2.0 (the
michael@0 8 * "License"); you may not use this file except in compliance
michael@0 9 * with the License. You may obtain a copy of the License at
michael@0 10 *
michael@0 11 * http://www.apache.org/licenses/LICENSE-2.0
michael@0 12 *
michael@0 13 * Unless required by applicable law or agreed to in writing,
michael@0 14 * software distributed under the License is distributed on an
michael@0 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
michael@0 16 * KIND, either express or implied. See the License for the
michael@0 17 * specific language governing permissions and limitations
michael@0 18 * under the License.
michael@0 19 * ====================================================================
michael@0 20 *
michael@0 21 * This software consists of voluntary contributions made by many
michael@0 22 * individuals on behalf of the Apache Software Foundation. For more
michael@0 23 * information on the Apache Software Foundation, please see
michael@0 24 * <http://www.apache.org/>.
michael@0 25 *
michael@0 26 */
michael@0 27
michael@0 28 package ch.boye.httpclientandroidlib.protocol;
michael@0 29
michael@0 30 import java.io.IOException;
michael@0 31
michael@0 32 import ch.boye.httpclientandroidlib.HttpEntity;
michael@0 33 import ch.boye.httpclientandroidlib.HttpEntityEnclosingRequest;
michael@0 34 import ch.boye.httpclientandroidlib.HttpException;
michael@0 35 import ch.boye.httpclientandroidlib.HttpRequest;
michael@0 36 import ch.boye.httpclientandroidlib.HttpRequestInterceptor;
michael@0 37 import ch.boye.httpclientandroidlib.HttpVersion;
michael@0 38 import ch.boye.httpclientandroidlib.ProtocolVersion;
michael@0 39 import ch.boye.httpclientandroidlib.params.HttpProtocolParams;
michael@0 40
michael@0 41 /**
michael@0 42 * RequestExpectContinue is responsible for enabling the 'expect-continue'
michael@0 43 * handshake by adding <code>Expect</code> header. This interceptor is
michael@0 44 * recommended for client side protocol processors.
michael@0 45 * <p>
michael@0 46 * The following parameters can be used to customize the behavior of this
michael@0 47 * class:
michael@0 48 * <ul>
michael@0 49 * <li>{@link ch.boye.httpclientandroidlib.params.CoreProtocolPNames#USE_EXPECT_CONTINUE}</li>
michael@0 50 * </ul>
michael@0 51 *
michael@0 52 * @since 4.0
michael@0 53 */
michael@0 54 public class RequestExpectContinue implements HttpRequestInterceptor {
michael@0 55
michael@0 56 public RequestExpectContinue() {
michael@0 57 super();
michael@0 58 }
michael@0 59
michael@0 60 public void process(final HttpRequest request, final HttpContext context)
michael@0 61 throws HttpException, IOException {
michael@0 62 if (request == null) {
michael@0 63 throw new IllegalArgumentException("HTTP request may not be null");
michael@0 64 }
michael@0 65 if (request instanceof HttpEntityEnclosingRequest) {
michael@0 66 HttpEntity entity = ((HttpEntityEnclosingRequest)request).getEntity();
michael@0 67 // Do not send the expect header if request body is known to be empty
michael@0 68 if (entity != null && entity.getContentLength() != 0) {
michael@0 69 ProtocolVersion ver = request.getRequestLine().getProtocolVersion();
michael@0 70 if (HttpProtocolParams.useExpectContinue(request.getParams())
michael@0 71 && !ver.lessEquals(HttpVersion.HTTP_1_0)) {
michael@0 72 request.addHeader(HTTP.EXPECT_DIRECTIVE, HTTP.EXPECT_CONTINUE);
michael@0 73 }
michael@0 74 }
michael@0 75 }
michael@0 76 }
michael@0 77
michael@0 78 }

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