diff -r 000000000000 -r 6474c204b198 mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/entity/StrictContentLengthStrategy.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/entity/StrictContentLengthStrategy.java Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,91 @@ +/* + * ==================================================================== + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * ==================================================================== + * + * This software consists of voluntary contributions made by many + * individuals on behalf of the Apache Software Foundation. For more + * information on the Apache Software Foundation, please see + * . + * + */ + +package ch.boye.httpclientandroidlib.impl.entity; + +import ch.boye.httpclientandroidlib.Header; +import ch.boye.httpclientandroidlib.HttpException; +import ch.boye.httpclientandroidlib.HttpMessage; +import ch.boye.httpclientandroidlib.HttpVersion; +import ch.boye.httpclientandroidlib.ProtocolException; +import ch.boye.httpclientandroidlib.entity.ContentLengthStrategy; +import ch.boye.httpclientandroidlib.protocol.HTTP; + +/** + * The strict implementation of the content length strategy. This class + * will throw {@link ProtocolException} if it encounters an unsupported + * transfer encoding or a malformed Content-Length header + * value. + *

+ * This class recognizes "chunked" and "identitiy" transfer-coding only. + * + * @since 4.0 + */ +public class StrictContentLengthStrategy implements ContentLengthStrategy { + + public StrictContentLengthStrategy() { + super(); + } + + public long determineLength(final HttpMessage message) throws HttpException { + if (message == null) { + throw new IllegalArgumentException("HTTP message may not be null"); + } + // Although Transfer-Encoding is specified as a list, in practice + // it is either missing or has the single value "chunked". So we + // treat it as a single-valued header here. + Header transferEncodingHeader = message.getFirstHeader(HTTP.TRANSFER_ENCODING); + Header contentLengthHeader = message.getFirstHeader(HTTP.CONTENT_LEN); + if (transferEncodingHeader != null) { + String s = transferEncodingHeader.getValue(); + if (HTTP.CHUNK_CODING.equalsIgnoreCase(s)) { + if (message.getProtocolVersion().lessEquals(HttpVersion.HTTP_1_0)) { + throw new ProtocolException( + "Chunked transfer encoding not allowed for " + + message.getProtocolVersion()); + } + return CHUNKED; + } else if (HTTP.IDENTITY_CODING.equalsIgnoreCase(s)) { + return IDENTITY; + } else { + throw new ProtocolException( + "Unsupported transfer encoding: " + s); + } + } else if (contentLengthHeader != null) { + String s = contentLengthHeader.getValue(); + try { + long len = Long.parseLong(s); + return len; + } catch (NumberFormatException e) { + throw new ProtocolException("Invalid content length: " + s); + } + } else { + return IDENTITY; + } + } + +}