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/*
* ====================================================================
* 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 io.logspace.agent.shaded.apache.http.impl.execchain;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import io.logspace.agent.shaded.apache.commons.logging.Log;
import io.logspace.agent.shaded.apache.commons.logging.LogFactory;
import io.logspace.agent.shaded.apache.http.HttpException;
import io.logspace.agent.shaded.apache.http.HttpHost;
import io.logspace.agent.shaded.apache.http.HttpRequest;
import io.logspace.agent.shaded.apache.http.ProtocolException;
import io.logspace.agent.shaded.apache.http.annotation.Immutable;
import io.logspace.agent.shaded.apache.http.auth.AuthScope;
import io.logspace.agent.shaded.apache.http.auth.UsernamePasswordCredentials;
import io.logspace.agent.shaded.apache.http.client.CredentialsProvider;
import io.logspace.agent.shaded.apache.http.client.methods.CloseableHttpResponse;
import io.logspace.agent.shaded.apache.http.client.methods.HttpExecutionAware;
import io.logspace.agent.shaded.apache.http.client.methods.HttpRequestWrapper;
import io.logspace.agent.shaded.apache.http.client.methods.HttpUriRequest;
import io.logspace.agent.shaded.apache.http.client.params.ClientPNames;
import io.logspace.agent.shaded.apache.http.client.protocol.HttpClientContext;
import io.logspace.agent.shaded.apache.http.client.utils.URIUtils;
import io.logspace.agent.shaded.apache.http.conn.routing.HttpRoute;
import io.logspace.agent.shaded.apache.http.impl.client.BasicCredentialsProvider;
import io.logspace.agent.shaded.apache.http.params.HttpParams;
import io.logspace.agent.shaded.apache.http.protocol.HttpCoreContext;
import io.logspace.agent.shaded.apache.http.protocol.HttpProcessor;
import io.logspace.agent.shaded.apache.http.util.Args;
/**
* Request executor in the request execution chain that is responsible
* for implementation of HTTP specification requirements.
* Internally this executor relies on a {@link HttpProcessor} to populate
* requisite HTTP request headers, process HTTP response headers and update
* session state in {@link HttpClientContext}.
*
* Further responsibilities such as communication with the opposite
* endpoint is delegated to the next executor in the request execution
* chain.
*
* @since 4.3
*/
@Immutable
@SuppressWarnings("deprecation")
public class ProtocolExec implements ClientExecChain {
private final Log log = LogFactory.getLog(getClass());
private final ClientExecChain requestExecutor;
private final HttpProcessor httpProcessor;
public ProtocolExec(final ClientExecChain requestExecutor, final HttpProcessor httpProcessor) {
Args.notNull(requestExecutor, "HTTP client request executor");
Args.notNull(httpProcessor, "HTTP protocol processor");
this.requestExecutor = requestExecutor;
this.httpProcessor = httpProcessor;
}
void rewriteRequestURI(
final HttpRequestWrapper request,
final HttpRoute route) throws ProtocolException {
try {
URI uri = request.getURI();
if (uri != null) {
if (route.getProxyHost() != null && !route.isTunnelled()) {
// Make sure the request URI is absolute
if (!uri.isAbsolute()) {
final HttpHost target = route.getTargetHost();
uri = URIUtils.rewriteURI(uri, target, true);
} else {
uri = URIUtils.rewriteURI(uri);
}
} else {
// Make sure the request URI is relative
if (uri.isAbsolute()) {
uri = URIUtils.rewriteURI(uri, null, true);
} else {
uri = URIUtils.rewriteURI(uri);
}
}
request.setURI(uri);
}
} catch (final URISyntaxException ex) {
throw new ProtocolException("Invalid URI: " + request.getRequestLine().getUri(), ex);
}
}
public CloseableHttpResponse execute(
final HttpRoute route,
final HttpRequestWrapper request,
final HttpClientContext context,
final HttpExecutionAware execAware) throws IOException,
HttpException {
Args.notNull(route, "HTTP route");
Args.notNull(request, "HTTP request");
Args.notNull(context, "HTTP context");
final HttpRequest original = request.getOriginal();
URI uri = null;
if (original instanceof HttpUriRequest) {
uri = ((HttpUriRequest) original).getURI();
} else {
final String uriString = original.getRequestLine().getUri();
try {
uri = URI.create(uriString);
} catch (final IllegalArgumentException ex) {
if (this.log.isDebugEnabled()) {
this.log.debug("Unable to parse '" + uriString + "' as a valid URI; " +
"request URI and Host header may be inconsistent", ex);
}
}
}
request.setURI(uri);
// Re-write request URI if needed
rewriteRequestURI(request, route);
final HttpParams params = request.getParams();
HttpHost virtualHost = (HttpHost) params.getParameter(ClientPNames.VIRTUAL_HOST);
// HTTPCLIENT-1092 - add the port if necessary
if (virtualHost != null && virtualHost.getPort() == -1) {
final int port = route.getTargetHost().getPort();
if (port != -1) {
virtualHost = new HttpHost(virtualHost.getHostName(), port,
virtualHost.getSchemeName());
}
if (this.log.isDebugEnabled()) {
this.log.debug("Using virtual host" + virtualHost);
}
}
HttpHost target = null;
if (virtualHost != null) {
target = virtualHost;
} else {
if (uri != null && uri.isAbsolute() && uri.getHost() != null) {
target = new HttpHost(uri.getHost(), uri.getPort(), uri.getScheme());
}
}
if (target == null) {
target = route.getTargetHost();
}
// Get user info from the URI
if (uri != null) {
final String userinfo = uri.getUserInfo();
if (userinfo != null) {
CredentialsProvider credsProvider = context.getCredentialsProvider();
if (credsProvider == null) {
credsProvider = new BasicCredentialsProvider();
context.setCredentialsProvider(credsProvider);
}
credsProvider.setCredentials(
new AuthScope(target),
new UsernamePasswordCredentials(userinfo));
}
}
// Run request protocol interceptors
context.setAttribute(HttpCoreContext.HTTP_TARGET_HOST, target);
context.setAttribute(HttpClientContext.HTTP_ROUTE, route);
context.setAttribute(HttpCoreContext.HTTP_REQUEST, request);
this.httpProcessor.process(request, context);
final CloseableHttpResponse response = this.requestExecutor.execute(route, request,
context, execAware);
try {
// Run response protocol interceptors
context.setAttribute(HttpCoreContext.HTTP_RESPONSE, response);
this.httpProcessor.process(response, context);
return response;
} catch (final RuntimeException ex) {
response.close();
throw ex;
} catch (final IOException ex) {
response.close();
throw ex;
} catch (final HttpException ex) {
response.close();
throw ex;
}
}
}
