Wed, 31 Dec 2014 07:22:50 +0100
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.Header; |
michael@0 | 33 | import ch.boye.httpclientandroidlib.HttpEntity; |
michael@0 | 34 | import ch.boye.httpclientandroidlib.HttpException; |
michael@0 | 35 | import ch.boye.httpclientandroidlib.HttpRequest; |
michael@0 | 36 | import ch.boye.httpclientandroidlib.HttpResponse; |
michael@0 | 37 | import ch.boye.httpclientandroidlib.HttpResponseInterceptor; |
michael@0 | 38 | import ch.boye.httpclientandroidlib.HttpStatus; |
michael@0 | 39 | import ch.boye.httpclientandroidlib.HttpVersion; |
michael@0 | 40 | import ch.boye.httpclientandroidlib.ProtocolVersion; |
michael@0 | 41 | |
michael@0 | 42 | /** |
michael@0 | 43 | * ResponseConnControl is responsible for adding <code>Connection</code> header |
michael@0 | 44 | * to the outgoing responses, which is essential for managing persistence of |
michael@0 | 45 | * <code>HTTP/1.0</code> connections. This interceptor is recommended for |
michael@0 | 46 | * server side protocol processors. |
michael@0 | 47 | * |
michael@0 | 48 | * @since 4.0 |
michael@0 | 49 | */ |
michael@0 | 50 | public class ResponseConnControl implements HttpResponseInterceptor { |
michael@0 | 51 | |
michael@0 | 52 | public ResponseConnControl() { |
michael@0 | 53 | super(); |
michael@0 | 54 | } |
michael@0 | 55 | |
michael@0 | 56 | public void process(final HttpResponse response, final HttpContext context) |
michael@0 | 57 | throws HttpException, IOException { |
michael@0 | 58 | if (response == null) { |
michael@0 | 59 | throw new IllegalArgumentException("HTTP response may not be null"); |
michael@0 | 60 | } |
michael@0 | 61 | if (context == null) { |
michael@0 | 62 | throw new IllegalArgumentException("HTTP context may not be null"); |
michael@0 | 63 | } |
michael@0 | 64 | // Always drop connection after certain type of responses |
michael@0 | 65 | int status = response.getStatusLine().getStatusCode(); |
michael@0 | 66 | if (status == HttpStatus.SC_BAD_REQUEST || |
michael@0 | 67 | status == HttpStatus.SC_REQUEST_TIMEOUT || |
michael@0 | 68 | status == HttpStatus.SC_LENGTH_REQUIRED || |
michael@0 | 69 | status == HttpStatus.SC_REQUEST_TOO_LONG || |
michael@0 | 70 | status == HttpStatus.SC_REQUEST_URI_TOO_LONG || |
michael@0 | 71 | status == HttpStatus.SC_SERVICE_UNAVAILABLE || |
michael@0 | 72 | status == HttpStatus.SC_NOT_IMPLEMENTED) { |
michael@0 | 73 | response.setHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_CLOSE); |
michael@0 | 74 | return; |
michael@0 | 75 | } |
michael@0 | 76 | // Always drop connection for HTTP/1.0 responses and below |
michael@0 | 77 | // if the content body cannot be correctly delimited |
michael@0 | 78 | HttpEntity entity = response.getEntity(); |
michael@0 | 79 | if (entity != null) { |
michael@0 | 80 | ProtocolVersion ver = response.getStatusLine().getProtocolVersion(); |
michael@0 | 81 | if (entity.getContentLength() < 0 && |
michael@0 | 82 | (!entity.isChunked() || ver.lessEquals(HttpVersion.HTTP_1_0))) { |
michael@0 | 83 | response.setHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_CLOSE); |
michael@0 | 84 | return; |
michael@0 | 85 | } |
michael@0 | 86 | } |
michael@0 | 87 | // Drop connection if requested by the client |
michael@0 | 88 | HttpRequest request = (HttpRequest) |
michael@0 | 89 | context.getAttribute(ExecutionContext.HTTP_REQUEST); |
michael@0 | 90 | if (request != null) { |
michael@0 | 91 | Header header = request.getFirstHeader(HTTP.CONN_DIRECTIVE); |
michael@0 | 92 | if (header != null) { |
michael@0 | 93 | response.setHeader(HTTP.CONN_DIRECTIVE, header.getValue()); |
michael@0 | 94 | } |
michael@0 | 95 | } |
michael@0 | 96 | } |
michael@0 | 97 | |
michael@0 | 98 | } |