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HttpComponents Client Source Code Files
HttpComponents Client Source Code Files are provided in the
source package file, httpcomponents-client-5.2-src.zip.
You can download httpcomponents-client-5.2-src.zip as described in the previous tutorial and go to the "httpclient5/src" sub-folder to view Source Code files.
You can also browse HttpComponents Client Source Code below:
✍: FYIcenter.com
⏎ org/apache/hc/client5/http/impl/async/AsyncRedirectExec.java
/* * ==================================================================== * 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 * <http://www.apache.org/>. * */ package org.apache.hc.client5.http.impl.async; import java.io.IOException; import java.net.URI; import org.apache.hc.client5.http.CircularRedirectException; import org.apache.hc.client5.http.HttpRoute; import org.apache.hc.client5.http.RedirectException; import org.apache.hc.client5.http.async.AsyncExecCallback; import org.apache.hc.client5.http.async.AsyncExecChain; import org.apache.hc.client5.http.async.AsyncExecChainHandler; import org.apache.hc.client5.http.auth.AuthExchange; import org.apache.hc.client5.http.config.RequestConfig; import org.apache.hc.client5.http.protocol.HttpClientContext; import org.apache.hc.client5.http.protocol.RedirectLocations; import org.apache.hc.client5.http.protocol.RedirectStrategy; import org.apache.hc.client5.http.routing.HttpRoutePlanner; import org.apache.hc.client5.http.utils.URIUtils; import org.apache.hc.core5.annotation.Contract; import org.apache.hc.core5.annotation.Internal; import org.apache.hc.core5.annotation.ThreadingBehavior; import org.apache.hc.core5.http.EntityDetails; import org.apache.hc.core5.http.HttpException; import org.apache.hc.core5.http.HttpHost; import org.apache.hc.core5.http.HttpRequest; import org.apache.hc.core5.http.HttpResponse; import org.apache.hc.core5.http.HttpStatus; import org.apache.hc.core5.http.Method; import org.apache.hc.core5.http.ProtocolException; import org.apache.hc.core5.http.nio.AsyncDataConsumer; import org.apache.hc.core5.http.nio.AsyncEntityProducer; import org.apache.hc.core5.http.support.BasicRequestBuilder; import org.apache.hc.core5.util.LangUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Request execution handler in the asynchronous request execution chain * responsible for handling of request redirects. * <p> * Further responsibilities such as communication with the opposite * endpoint is delegated to the next executor in the request execution * chain. * </p> * * @since 5.0 */ @Contract(threading = ThreadingBehavior.STATELESS) @Internal public final class AsyncRedirectExec implements AsyncExecChainHandler { private static final Logger LOG = LoggerFactory.getLogger(AsyncRedirectExec.class); private final HttpRoutePlanner routePlanner; private final RedirectStrategy redirectStrategy; AsyncRedirectExec(final HttpRoutePlanner routePlanner, final RedirectStrategy redirectStrategy) { this.routePlanner = routePlanner; this.redirectStrategy = redirectStrategy; } private static class State { volatile URI redirectURI; volatile int maxRedirects; volatile int redirectCount; volatile HttpRequest currentRequest; volatile AsyncEntityProducer currentEntityProducer; volatile RedirectLocations redirectLocations; volatile AsyncExecChain.Scope currentScope; volatile boolean reroute; } private void internalExecute( final State state, final AsyncExecChain chain, final AsyncExecCallback asyncExecCallback) throws HttpException, IOException { final HttpRequest request = state.currentRequest; final AsyncEntityProducer entityProducer = state.currentEntityProducer; final AsyncExecChain.Scope scope = state.currentScope; final HttpClientContext clientContext = scope.clientContext; final String exchangeId = scope.exchangeId; final HttpRoute currentRoute = scope.route; chain.proceed(request, entityProducer, scope, new AsyncExecCallback() { @Override public AsyncDataConsumer handleResponse( final HttpResponse response, final EntityDetails entityDetails) throws HttpException, IOException { state.redirectURI = null; final RequestConfig config = clientContext.getRequestConfig(); if (config.isRedirectsEnabled() && redirectStrategy.isRedirected(request, response, clientContext)) { if (state.redirectCount >= state.maxRedirects) { throw new RedirectException("Maximum redirects (" + state.maxRedirects + ") exceeded"); } state.redirectCount++; final URI redirectUri = redirectStrategy.getLocationURI(request, response, clientContext); if (LOG.isDebugEnabled()) { LOG.debug("{} redirect requested to location '{}'", exchangeId, redirectUri); } if (!config.isCircularRedirectsAllowed()) { if (state.redirectLocations.contains(redirectUri)) { throw new CircularRedirectException("Circular redirect to '" + redirectUri + "'"); } } state.redirectLocations.add(redirectUri); final HttpHost newTarget = URIUtils.extractHost(redirectUri); if (newTarget == null) { throw new ProtocolException("Redirect URI does not specify a valid host name: " + redirectUri); } final int statusCode = response.getCode(); final BasicRequestBuilder redirectBuilder; switch (statusCode) { case HttpStatus.SC_MOVED_PERMANENTLY: case HttpStatus.SC_MOVED_TEMPORARILY: if (Method.POST.isSame(request.getMethod())) { redirectBuilder = BasicRequestBuilder.get(); state.currentEntityProducer = null; } else { redirectBuilder = BasicRequestBuilder.copy(scope.originalRequest); } break; case HttpStatus.SC_SEE_OTHER: if (!Method.GET.isSame(request.getMethod()) && !Method.HEAD.isSame(request.getMethod())) { redirectBuilder = BasicRequestBuilder.get(); state.currentEntityProducer = null; } else { redirectBuilder = BasicRequestBuilder.copy(scope.originalRequest); } break; default: redirectBuilder = BasicRequestBuilder.copy(scope.originalRequest); } redirectBuilder.setUri(redirectUri); state.reroute = false; state.redirectURI = redirectUri; state.currentRequest = redirectBuilder.build(); if (!LangUtils.equals(currentRoute.getTargetHost(), newTarget)) { final HttpRoute newRoute = routePlanner.determineRoute(newTarget, clientContext); if (!LangUtils.equals(currentRoute, newRoute)) { state.reroute = true; final AuthExchange targetAuthExchange = clientContext.getAuthExchange(currentRoute.getTargetHost()); if (LOG.isDebugEnabled()) { LOG.debug("{} resetting target auth state", exchangeId); } targetAuthExchange.reset(); if (currentRoute.getProxyHost() != null) { final AuthExchange proxyAuthExchange = clientContext.getAuthExchange(currentRoute.getProxyHost()); if (proxyAuthExchange.isConnectionBased()) { if (LOG.isDebugEnabled()) { LOG.debug("{} resetting proxy auth state", exchangeId); } proxyAuthExchange.reset(); } } state.currentScope = new AsyncExecChain.Scope( scope.exchangeId, newRoute, scope.originalRequest, scope.cancellableDependency, scope.clientContext, scope.execRuntime, scope.scheduler, scope.execCount); } } } if (state.redirectURI != null) { if (LOG.isDebugEnabled()) { LOG.debug("{} redirecting to '{}' via {}", exchangeId, state.redirectURI, currentRoute); } return null; } return asyncExecCallback.handleResponse(response, entityDetails); } @Override public void handleInformationResponse( final HttpResponse response) throws HttpException, IOException { asyncExecCallback.handleInformationResponse(response); } @Override public void completed() { if (state.redirectURI == null) { asyncExecCallback.completed(); } else { final AsyncEntityProducer entityProducer = state.currentEntityProducer; if (entityProducer != null) { entityProducer.releaseResources(); } if (entityProducer != null && !entityProducer.isRepeatable()) { if (LOG.isDebugEnabled()) { LOG.debug("{} cannot redirect non-repeatable request", exchangeId); } asyncExecCallback.completed(); } else { try { if (state.reroute) { scope.execRuntime.releaseEndpoint(); } internalExecute(state, chain, asyncExecCallback); } catch (final IOException | HttpException ex) { asyncExecCallback.failed(ex); } } } } @Override public void failed(final Exception cause) { asyncExecCallback.failed(cause); } }); } @Override public void execute( final HttpRequest request, final AsyncEntityProducer entityProducer, final AsyncExecChain.Scope scope, final AsyncExecChain chain, final AsyncExecCallback asyncExecCallback) throws HttpException, IOException { final HttpClientContext clientContext = scope.clientContext; RedirectLocations redirectLocations = clientContext.getRedirectLocations(); if (redirectLocations == null) { redirectLocations = new RedirectLocations(); clientContext.setAttribute(HttpClientContext.REDIRECT_LOCATIONS, redirectLocations); } redirectLocations.clear(); final RequestConfig config = clientContext.getRequestConfig(); final State state = new State(); state.maxRedirects = config.getMaxRedirects() > 0 ? config.getMaxRedirects() : 50; state.redirectCount = 0; state.currentRequest = request; state.currentEntityProducer = entityProducer; state.redirectLocations = redirectLocations; state.currentScope = scope; internalExecute(state, chain, asyncExecCallback); } }
⏎ org/apache/hc/client5/http/impl/async/AsyncRedirectExec.java
Or download all them as a single archive file:
File name: httpclient5-5.2-fyi.zip File size: 625318 bytes Release date: 2022-11-10 Download
⇒ Download and Install HttpComponents Core Binary Package
⇐ Download and Install HttpComponents Client Source Package
2023-03-26, 9165👍, 1💬
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