media/mojo/services/fuchsia_cdm_provisioning_fetcher_impl.h

   1 // Copyright 2020 The Chromium Authors
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MEDIA_MOJO_SERVICES_FUCHSIA_CDM_PROVISIONING_FETCHER_IMPL_H_
   6 #define MEDIA_MOJO_SERVICES_FUCHSIA_CDM_PROVISIONING_FETCHER_IMPL_H_
   7
   8 #include <fuchsia/media/drm/cpp/fidl.h>
   9 #include <lib/fidl/cpp/binding.h>
  10 #include <lib/fidl/cpp/interface_handle.h>
  11 #include <memory>
  12
  13 #include "base/functional/callback_forward.h"
  14 #include "media/base/provision_fetcher.h"
  15 #include "media/mojo/services/media_mojo_export.h"
  16
  17 namespace media {
  18
  19 // Server end implementation of the fuchsia.media.drm.ProvisioningFetcher
  20 // protocol. The client end is provided to the fuchsia.media.drm.KeySystem so
  21 // that the KeySystem can invoke provisioning retrieval when necessary.
  22 class MEDIA_MOJO_EXPORT FuchsiaCdmProvisioningFetcherImpl
  23     : public fuchsia::media::drm::ProvisioningFetcher {
  24  public:
  25   explicit FuchsiaCdmProvisioningFetcherImpl(
  26       CreateFetcherCB create_fetcher_callback);
  27   ~FuchsiaCdmProvisioningFetcherImpl() override;
  28
  29   // Disallow copy and move
  30   FuchsiaCdmProvisioningFetcherImpl(const FuchsiaCdmProvisioningFetcherImpl&) =
  31       delete;
  32   FuchsiaCdmProvisioningFetcherImpl(FuchsiaCdmProvisioningFetcherImpl&&) =
  33       delete;
  34   FuchsiaCdmProvisioningFetcherImpl& operator=(
  35       const FuchsiaCdmProvisioningFetcherImpl&) = delete;
  36   FuchsiaCdmProvisioningFetcherImpl& operator=(
  37       FuchsiaCdmProvisioningFetcherImpl&&) = delete;
  38
  39   fidl::InterfaceHandle<fuchsia::media::drm::ProvisioningFetcher> Bind(
  40       base::OnceClosure error_callback);
  41
  42   // fuchsia::media::drm::ProvisioningFetcher implementation.
  43   void Fetch(fuchsia::media::drm::ProvisioningRequest request,
  44              FetchCallback callback) override;
  45
  46  protected:
  47   void OnRetrieveComplete(FetchCallback callback,
  48                           bool success,
  49                           const std::string& response);
  50   void OnError(zx_status_t status);
  51
  52  private:
  53   CreateFetcherCB create_fetcher_callback_;
  54   fidl::Binding<fuchsia::media::drm::ProvisioningFetcher> binding_;
  55   base::OnceClosure error_callback_;
  56   std::unique_ptr<media::ProvisionFetcher> fetcher_;
  57   bool retrieve_in_progress_ = false;
  58 };
  59
  60 }  // namespace media
  61
  62 #endif  // MEDIA_MOJO_SERVICES_FUCHSIA_CDM_PROVISIONING_FETCHER_IMPL_H_