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98 lines
3.9 KiB
Java
98 lines
3.9 KiB
Java
/*
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package ch.boye.httpclientandroidlib.protocol;
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import java.io.IOException;
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import java.net.InetAddress;
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import ch.boye.httpclientandroidlib.HttpConnection;
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import ch.boye.httpclientandroidlib.HttpException;
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import ch.boye.httpclientandroidlib.HttpHost;
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import ch.boye.httpclientandroidlib.HttpInetConnection;
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import ch.boye.httpclientandroidlib.HttpRequest;
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import ch.boye.httpclientandroidlib.HttpRequestInterceptor;
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import ch.boye.httpclientandroidlib.HttpVersion;
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import ch.boye.httpclientandroidlib.ProtocolVersion;
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import ch.boye.httpclientandroidlib.ProtocolException;
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/**
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* RequestTargetHost is responsible for adding <code>Host</code> header. This
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* interceptor is required for client side protocol processors.
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*
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* @since 4.0
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*/
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public class RequestTargetHost implements HttpRequestInterceptor {
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public RequestTargetHost() {
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super();
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}
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public void process(final HttpRequest request, final HttpContext context)
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throws HttpException, IOException {
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if (request == null) {
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throw new IllegalArgumentException("HTTP request may not be null");
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}
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if (context == null) {
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throw new IllegalArgumentException("HTTP context may not be null");
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}
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ProtocolVersion ver = request.getRequestLine().getProtocolVersion();
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String method = request.getRequestLine().getMethod();
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if (method.equalsIgnoreCase("CONNECT") && ver.lessEquals(HttpVersion.HTTP_1_0)) {
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return;
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}
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if (!request.containsHeader(HTTP.TARGET_HOST)) {
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HttpHost targethost = (HttpHost) context
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.getAttribute(ExecutionContext.HTTP_TARGET_HOST);
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if (targethost == null) {
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HttpConnection conn = (HttpConnection) context
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.getAttribute(ExecutionContext.HTTP_CONNECTION);
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if (conn instanceof HttpInetConnection) {
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// Populate the context with a default HTTP host based on the
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// inet address of the target host
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InetAddress address = ((HttpInetConnection) conn).getRemoteAddress();
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int port = ((HttpInetConnection) conn).getRemotePort();
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if (address != null) {
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targethost = new HttpHost(address.getHostName(), port);
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}
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}
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if (targethost == null) {
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if (ver.lessEquals(HttpVersion.HTTP_1_0)) {
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return;
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} else {
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throw new ProtocolException("Target host missing");
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}
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}
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}
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request.addHeader(HTTP.TARGET_HOST, targethost.toHostString());
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}
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}
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}
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