mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/entity/StrictContentLengthStrategy.java@fc2d59ddac77
mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/entity/StrictContentLengthStrategy.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.
1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
28 package ch.boye.httpclientandroidlib.impl.entity;
30 import ch.boye.httpclientandroidlib.Header;
31 import ch.boye.httpclientandroidlib.HttpException;
32 import ch.boye.httpclientandroidlib.HttpMessage;
33 import ch.boye.httpclientandroidlib.HttpVersion;
34 import ch.boye.httpclientandroidlib.ProtocolException;
35 import ch.boye.httpclientandroidlib.entity.ContentLengthStrategy;
36 import ch.boye.httpclientandroidlib.protocol.HTTP;
38 /**
39 * The strict implementation of the content length strategy. This class
40 * will throw {@link ProtocolException} if it encounters an unsupported
41 * transfer encoding or a malformed <code>Content-Length</code> header
42 * value.
43 * <p>
44 * This class recognizes "chunked" and "identitiy" transfer-coding only.
45 *
46 * @since 4.0
47 */
48 public class StrictContentLengthStrategy implements ContentLengthStrategy {
50 public StrictContentLengthStrategy() {
51 super();
52 }
54 public long determineLength(final HttpMessage message) throws HttpException {
55 if (message == null) {
56 throw new IllegalArgumentException("HTTP message may not be null");
57 }
58 // Although Transfer-Encoding is specified as a list, in practice
59 // it is either missing or has the single value "chunked". So we
60 // treat it as a single-valued header here.
61 Header transferEncodingHeader = message.getFirstHeader(HTTP.TRANSFER_ENCODING);
62 Header contentLengthHeader = message.getFirstHeader(HTTP.CONTENT_LEN);
63 if (transferEncodingHeader != null) {
64 String s = transferEncodingHeader.getValue();
65 if (HTTP.CHUNK_CODING.equalsIgnoreCase(s)) {
66 if (message.getProtocolVersion().lessEquals(HttpVersion.HTTP_1_0)) {
67 throw new ProtocolException(
68 "Chunked transfer encoding not allowed for " +
69 message.getProtocolVersion());
70 }
71 return CHUNKED;
72 } else if (HTTP.IDENTITY_CODING.equalsIgnoreCase(s)) {
73 return IDENTITY;
74 } else {
75 throw new ProtocolException(
76 "Unsupported transfer encoding: " + s);
77 }
78 } else if (contentLengthHeader != null) {
79 String s = contentLengthHeader.getValue();
80 try {
81 long len = Long.parseLong(s);
82 return len;
83 } catch (NumberFormatException e) {
84 throw new ProtocolException("Invalid content length: " + s);
85 }
86 } else {
87 return IDENTITY;
88 }
89 }
91 }
