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// 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 MEDIA_FUCHSIA_CDM_SERVICE_FUCHSIA_CDM_MANAGER_H_
#define MEDIA_FUCHSIA_CDM_SERVICE_FUCHSIA_CDM_MANAGER_H_
#include <fuchsia/media/drm/cpp/fidl.h>
#include <string>
#include "base/callback_forward.h"
#include "base/containers/flat_map.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/sequenced_task_runner.h"
#include "base/threading/thread_checker.h"
#include "media/base/provision_fetcher.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
namespace url {
class Origin;
} // namespace url
namespace media {
// Create and connect to Fuchsia CDM services. Additionally manages the storage
// for CDM user data.
class FuchsiaCdmManager {
public:
using CreateKeySystemCallback = base::RepeatingCallback<
fidl::InterfaceHandle<fuchsia::media::drm::KeySystem>()>;
// A map from key system name to its CreateKeySystemCallback.
using CreateKeySystemCallbackMap =
base::flat_map<std::string, CreateKeySystemCallback>;
// |cdm_data_quota_bytes| is currently only applied once, when the manager is
// created.
FuchsiaCdmManager(
CreateKeySystemCallbackMap create_key_system_callbacks_by_name,
base::FilePath cdm_data_path,
absl::optional<uint64_t> cdm_data_quota_bytes);
~FuchsiaCdmManager();
FuchsiaCdmManager(FuchsiaCdmManager&&) = delete;
FuchsiaCdmManager& operator=(FuchsiaCdmManager&&) = delete;
void CreateAndProvision(
const std::string& key_system,
const url::Origin& origin,
CreateFetcherCB create_fetcher_cb,
fidl::InterfaceRequest<fuchsia::media::drm::ContentDecryptionModule>
request);
// Used by tests to monitor for key system disconnection events. The key
// system name is passed as a parameter to the callback.
void set_on_key_system_disconnect_for_test_callback(
base::RepeatingCallback<void(const std::string&)> disconnect_callback);
private:
class KeySystemClient;
using KeySystemClientMap =
base::flat_map<std::string, std::unique_ptr<KeySystemClient>>;
KeySystemClient* GetOrCreateKeySystemClient(
const std::string& key_system_name);
KeySystemClient* CreateKeySystemClient(const std::string& key_system_name);
base::FilePath GetStoragePath(const std::string& key_system_name,
const url::Origin& origin);
void CreateCdm(
const std::string& key_system_name,
CreateFetcherCB create_fetcher_cb,
fidl::InterfaceRequest<fuchsia::media::drm::ContentDecryptionModule>
request,
base::FilePath storage_path,
absl::optional<base::File::Error> storage_creation_error);
void OnKeySystemClientError(const std::string& key_system_name);
// A map of callbacks to create KeySystem channels indexed by their EME name.
const CreateKeySystemCallbackMap create_key_system_callbacks_by_name_;
const base::FilePath cdm_data_path_;
const absl::optional<uint64_t> cdm_data_quota_bytes_;
// Used for operations on the CDM data directory.
const scoped_refptr<base::SequencedTaskRunner> storage_task_runner_;
// A map of the active KeySystem clients indexed by their EME name. Entries
// in this map will be added on the first CreateAndProvision call for that
// particular KeySystem. They will only be removed if the KeySystem channel
// receives an error.
KeySystemClientMap active_key_system_clients_by_name_;
base::RepeatingCallback<void(const std::string&)>
on_key_system_disconnect_for_test_callback_;
THREAD_CHECKER(thread_checker_);
base::WeakPtrFactory<FuchsiaCdmManager> weak_factory_{this};
};
} // namespace media
#endif // MEDIA_FUCHSIA_CDM_SERVICE_FUCHSIA_CDM_MANAGER_H_
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