fuchsia/engine/browser/content_directory_loader_factory.h

// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef FUCHSIA_ENGINE_BROWSER_CONTENT_DIRECTORY_LOADER_FACTORY_H_
#define FUCHSIA_ENGINE_BROWSER_CONTENT_DIRECTORY_LOADER_FACTORY_H_

#include <fuchsia/io/cpp/fidl.h>
#include <fuchsia/web/cpp/fidl.h>
#include <lib/fidl/cpp/interface_handle.h>
#include <memory>
#include <string>
#include <vector>

#include "fuchsia/engine/web_engine_export.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "services/network/public/mojom/url_loader_factory.mojom.h"

// Creates a URLLoaderFactory which services requests for resources stored
// under named directories. The directories are accessed using the
// fuchsia-dir:// scheme.
class ContentDirectoryLoaderFactory : public network::mojom::URLLoaderFactory {
 public:
  ContentDirectoryLoaderFactory();
  ~ContentDirectoryLoaderFactory() override;

  // Sets the list of content directories for the duration of the process.
  // Can be called multiple times for clearing or replacing the list.
  static WEB_ENGINE_EXPORT void SetContentDirectoriesForTest(
      std::vector<fuchsia::web::ContentDirectoryProvider> directories);

  // network::mojom::URLLoaderFactory:
  void CreateLoaderAndStart(
      mojo::PendingReceiver<network::mojom::URLLoader> loader,
      int32_t routing_id,
      int32_t request_id,
      uint32_t options,
      const network::ResourceRequest& request,
      network::mojom::URLLoaderClientPtr client,
      const net::MutableNetworkTrafficAnnotationTag& traffic_annotation) final;
  void Clone(
      mojo::PendingReceiver<network::mojom::URLLoaderFactory> loader) final;

 private:
  net::Error OpenFileFromDirectory(
      const std::string& directory_name,
      base::FilePath path,
      fidl::InterfaceRequest<fuchsia::io::Node> file_request);

  // Used for executing blocking URLLoader routines.
  const scoped_refptr<base::SequencedTaskRunner> task_runner_;

  mojo::ReceiverSet<network::mojom::URLLoaderFactory> receivers_;

  DISALLOW_COPY_AND_ASSIGN(ContentDirectoryLoaderFactory);
};

#endif  // FUCHSIA_ENGINE_BROWSER_CONTENT_DIRECTORY_LOADER_FACTORY_H_