mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/ResponseContent.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.HttpException;
michael@0 34 import ch.boye.httpclientandroidlib.HttpResponse;
michael@0 35 import ch.boye.httpclientandroidlib.HttpResponseInterceptor;
michael@0 36 import ch.boye.httpclientandroidlib.HttpStatus;
michael@0 37 import ch.boye.httpclientandroidlib.HttpVersion;
michael@0 38 import ch.boye.httpclientandroidlib.ProtocolVersion;
michael@0 39 import ch.boye.httpclientandroidlib.ProtocolException;
michael@0 40
michael@0 41 /**
michael@0 42 * ResponseContent is the most important interceptor for outgoing responses.
michael@0 43 * It is responsible for delimiting content length by adding
michael@0 44 * <code>Content-Length</code> or <code>Transfer-Content</code> headers based
michael@0 45 * on the properties of the enclosed entity and the protocol version.
michael@0 46 * This interceptor is required for correct functioning of server side protocol
michael@0 47 * processors.
michael@0 48 *
michael@0 49 * @since 4.0
michael@0 50 */
michael@0 51 public class ResponseContent implements HttpResponseInterceptor {
michael@0 52
michael@0 53 public ResponseContent() {
michael@0 54 super();
michael@0 55 }
michael@0 56
michael@0 57 public void process(final HttpResponse response, final HttpContext context)
michael@0 58 throws HttpException, IOException {
michael@0 59 if (response == null) {
michael@0 60 throw new IllegalArgumentException("HTTP response may not be null");
michael@0 61 }
michael@0 62 if (response.containsHeader(HTTP.TRANSFER_ENCODING)) {
michael@0 63 throw new ProtocolException("Transfer-encoding header already present");
michael@0 64 }
michael@0 65 if (response.containsHeader(HTTP.CONTENT_LEN)) {
michael@0 66 throw new ProtocolException("Content-Length header already present");
michael@0 67 }
michael@0 68 ProtocolVersion ver = response.getStatusLine().getProtocolVersion();
michael@0 69 HttpEntity entity = response.getEntity();
michael@0 70 if (entity != null) {
michael@0 71 long len = entity.getContentLength();
michael@0 72 if (entity.isChunked() && !ver.lessEquals(HttpVersion.HTTP_1_0)) {
michael@0 73 response.addHeader(HTTP.TRANSFER_ENCODING, HTTP.CHUNK_CODING);
michael@0 74 } else if (len >= 0) {
michael@0 75 response.addHeader(HTTP.CONTENT_LEN, Long.toString(entity.getContentLength()));
michael@0 76 }
michael@0 77 // Specify a content type if known
michael@0 78 if (entity.getContentType() != null && !response.containsHeader(
michael@0 79 HTTP.CONTENT_TYPE )) {
michael@0 80 response.addHeader(entity.getContentType());
michael@0 81 }
michael@0 82 // Specify a content encoding if known
michael@0 83 if (entity.getContentEncoding() != null && !response.containsHeader(
michael@0 84 HTTP.CONTENT_ENCODING)) {
michael@0 85 response.addHeader(entity.getContentEncoding());
michael@0 86 }
michael@0 87 } else {
michael@0 88 int status = response.getStatusLine().getStatusCode();
michael@0 89 if (status != HttpStatus.SC_NO_CONTENT
michael@0 90 && status != HttpStatus.SC_NOT_MODIFIED
michael@0 91 && status != HttpStatus.SC_RESET_CONTENT) {
michael@0 92 response.addHeader(HTTP.CONTENT_LEN, "0");
michael@0 93 }
michael@0 94 }
michael@0 95 }
michael@0 96
michael@0 97 }

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