chromium/components/policy/core/common/cloud/external_policy_data_updater.h

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_POLICY_CORE_COMMON_CLOUD_EXTERNAL_POLICY_DATA_UPDATER_H_
#define COMPONENTS_POLICY_CORE_COMMON_CLOUD_EXTERNAL_POLICY_DATA_UPDATER_H_

#include <stddef.h>
#include <stdint.h>

#include <map>
#include <memory>
#include <string>

#include "base/containers/queue.h"
#include "base/functional/callback_forward.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "components/policy/policy_export.h"

namespace base {
class SequencedTaskRunner;
}

namespace policy {

class ExternalPolicyDataFetcher;

// This class downloads external policy data. Given a |Request|, data is fetched
// from the |url|, verified to not exceed |max_size| and to match the expected
// |hash| and then handed to a callback that can do further verification before
// finally deciding whether the fetched data is valid.
// If a fetch is not successful or retrieves invalid data, retries are scheduled
// with exponential backoff.
// The actual fetching is handled by an ExternalPolicyDataFetcher, allowing this
// class to run on a background thread where network I/O is not possible.
class POLICY_EXPORT ExternalPolicyDataUpdater { … };

}  // namespace policy

#endif  // COMPONENTS_POLICY_CORE_COMMON_CLOUD_EXTERNAL_POLICY_DATA_UPDATER_H_