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comparison: mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/entity/StrictContentLengthStrategy.java
mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/entity/StrictContentLengthStrategy.java
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
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| -1:000000000000 | 0:5b394639640b |
|---|---|
| 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 */ | |
| 27 | |
| 28 package ch.boye.httpclientandroidlib.impl.entity; | |
| 29 | |
| 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; | |
| 37 | |
| 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 { | |
| 49 | |
| 50 public StrictContentLengthStrategy() { | |
| 51 super(); | |
| 52 } | |
| 53 | |
| 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 } | |
| 90 | |
| 91 } |
