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// Copyright 2015 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 COMPONENTS_PROXIMITY_AUTH_WEBUI_REACHABLE_PHONE_FLOW_H_
#define COMPONENTS_PROXIMITY_AUTH_WEBUI_REACHABLE_PHONE_FLOW_H_
#include <memory>
#include <string>
#include <vector>
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
namespace cryptauth {
class CryptAuthClient;
class CryptAuthClientFactory;
class ExternalDeviceInfo;
class FindEligibleUnlockDevicesResponse;
class SendDeviceSyncTickleResponse;
};
namespace proximity_auth {
// Run this flow to find the user's phones that actively respond to a CryptAuth
// ping. We are confident that phones responding to the ping are currently
// online and immediately reachable.
class ReachablePhoneFlow {
public:
// Creates the ReachablePhoneFlow instance:
// |client_factory|: Factory for creating CryptAuthClient instances. Not owned
// and must outlive |this| instance.
explicit ReachablePhoneFlow(
cryptauth::CryptAuthClientFactory* client_factory);
~ReachablePhoneFlow();
// Starts the flow and invokes |callback| with the reachable devices upon
// completion. If the flow fails, |callback| will be invoked with an empty
// vector. Do not reuse this class after calling |Run()|, but instead create a
// new instance.
typedef base::Callback<void(
const std::vector<cryptauth::ExternalDeviceInfo>&)>
ReachablePhonesCallback;
void Run(const ReachablePhonesCallback& callback);
private:
// Callback when a CryptAuth API fails.
void OnApiCallError(const std::string& error);
// Callback for the SyncTickle CryptAuth request.
void OnSyncTickleSuccess(
const cryptauth::SendDeviceSyncTickleResponse& response);
// Makes the CryptAuth request to get the phones that responded to the ping.
void QueryReachablePhones();
// Callback for the FindEligibleUnlockDevicesResponse CryptAuth request.
void OnFindEligibleUnlockDevicesSuccess(
const cryptauth::FindEligibleUnlockDevicesResponse& response);
// Factory for creating CryptAuthClient instances. Not owned and must outlive
// |this| instance.
cryptauth::CryptAuthClientFactory* client_factory_;
// Callback invoked when the flow completes.
ReachablePhonesCallback callback_;
// The client making the current CryptAuth API call.
std::unique_ptr<cryptauth::CryptAuthClient> client_;
base::WeakPtrFactory<ReachablePhoneFlow> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(ReachablePhoneFlow);
};
} // namespace proximity_auth
#endif // COMPONENTS_PROXIMITY_AUTH_WEBUI_REACHABLE_PHONE_FLOW_H_
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