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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/attestation/tpm_challenge_key_with_timeout.h"
#include "base/memory/ptr_util.h"
#include "base/task/sequenced_task_runner.h"
namespace ash {
namespace attestation {
TpmChallengeKeyWithTimeout::TpmChallengeKeyWithTimeout() = default;
TpmChallengeKeyWithTimeout::~TpmChallengeKeyWithTimeout() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
}
void TpmChallengeKeyWithTimeout::BuildResponse(
base::TimeDelta timeout,
::attestation::VerifiedAccessFlow flow_type,
Profile* profile,
TpmChallengeKeyCallback callback,
const std::string& challenge,
bool register_key,
::attestation::KeyType key_crypto_type,
const std::string& key_name_for_spkac,
const std::optional<std::string>& signals) {
DCHECK(!callback_);
callback_ = std::move(callback);
base::SequencedTaskRunner::GetCurrentDefault()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&TpmChallengeKeyWithTimeout::ResolveCallback,
weak_factory_.GetWeakPtr(),
TpmChallengeKeyResult::MakeError(
TpmChallengeKeyResultCode::kTimeoutError)),
timeout);
challenger_ = TpmChallengeKeyFactory::Create();
challenger_->BuildResponse(
flow_type, profile,
base::BindOnce(&TpmChallengeKeyWithTimeout::ResolveCallback,
weak_factory_.GetWeakPtr()),
challenge, register_key, key_crypto_type, key_name_for_spkac, signals);
}
void TpmChallengeKeyWithTimeout::ResolveCallback(
const TpmChallengeKeyResult& result) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
weak_factory_.InvalidateWeakPtrs();
challenger_.reset();
std::move(callback_).Run(result);
// No more member accesses here: |this| could be deleted at this point.
}
} // namespace attestation
} // namespace ash
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