mobile/android/thirdparty/ch/boye/httpclientandroidlib/protocol/ResponseConnControl.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.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 }

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