text: /*
   * Copyright (C) 2017 Apple Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
   * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
   * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   * THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #pragma once
  
  #if ENABLE(SERVICE_WORKER)
  
  #include "DataReference.h"
  #include "FormDataReference.h"
  #include "MessageReceiver.h"
  #include "MessageSender.h"
  #include <WebCore/ResourceLoader.h>
  #include <wtf/CompletionHandler.h>
  
  namespace WebKit {
  
  class WebSWClientConnection;
  class WebServiceWorkerProvider;
  
  class ServiceWorkerClientFetch final : public RefCounted<ServiceWorkerClientFetch>, public IPC::MessageReceiver {
  public:
      enum class Result { Succeeded, Cancelled, Unhandled };
      using Callback = WTF::CompletionHandler<void(Result)>;
  
      static Ref<ServiceWorkerClientFetch> create(WebServiceWorkerProvider&, Ref<WebCore::ResourceLoader>&&, uint64_t identifier, Ref<WebSWClientConnection>&&, bool shouldClearReferrerOnHTTPSToHTTPRedirect, Callback&&);
      ~ServiceWorkerClientFetch();
  
      void start();
  
      void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
      void cancel();
  
      bool isOngoing() const { return !!m_callback; }
  
  private:
      ServiceWorkerClientFetch(WebServiceWorkerProvider&, Ref<WebCore::ResourceLoader>&&, uint64_t identifier, Ref<WebSWClientConnection>&&, bool shouldClearReferrerOnHTTPSToHTTPRedirect, Callback&&);
  
      std::optional<WebCore::ResourceError> validateResponse(const WebCore::ResourceResponse&);
  
      void didReceiveResponse(WebCore::ResourceResponse&&);
      void didReceiveData(const IPC::DataReference&, int64_t encodedDataLength);
      void didReceiveFormData(const IPC::FormDataReference&);
      void didFinish();
      void didFail();
      void didNotHandle();
  
      WebServiceWorkerProvider& m_serviceWorkerProvider;
      Ref<WebCore::ResourceLoader> m_loader;
      uint64_t m_identifier { 0 };
      Ref<WebSWClientConnection> m_connection;
      Callback m_callback;
      enum class RedirectionStatus { None, Receiving, Following, Received };
      RedirectionStatus m_redirectionStatus { RedirectionStatus::None };
      bool m_shouldClearReferrerOnHTTPSToHTTPRedirect { true };
  };
  
  } // namespace WebKit
  
  #endif // ENABLE(SERVICE_WORKER)
  