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// Copyright 2020 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/platform_keys/platform_keys_service.h"
#include <map>
#include <utility>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/location.h"
#include "base/task/thread_pool.h"
#include "content/public/browser/browser_thread.h"
#include "net/base/net_errors.h"
#include "net/cert/x509_certificate.h"
namespace ash {
namespace platform_keys {
// =============== PlatformKeysServiceImplDelegate =============================
PlatformKeysServiceImplDelegate::PlatformKeysServiceImplDelegate() = default;
PlatformKeysServiceImplDelegate::~PlatformKeysServiceImplDelegate() {
ShutDown();
}
void PlatformKeysServiceImplDelegate::SetOnShutdownCallback(
base::OnceClosure on_shutdown_callback) {
DCHECK(!shut_down_);
DCHECK(!on_shutdown_callback_);
on_shutdown_callback_ = std::move(on_shutdown_callback);
}
bool PlatformKeysServiceImplDelegate::IsShutDown() const {
return shut_down_;
}
void PlatformKeysServiceImplDelegate::ShutDown() {
if (shut_down_)
return;
shut_down_ = true;
if (on_shutdown_callback_)
std::move(on_shutdown_callback_).Run();
}
// =================== PlatformKeysServiceImpl =================================
PlatformKeysServiceImpl::PlatformKeysServiceImpl(
std::unique_ptr<PlatformKeysServiceImplDelegate> delegate)
: delegate_(std::move(delegate)) {
// base::Unretained is OK because |delegate_| is owned by this and can
// only call the callback before it is destroyed.
delegate_->SetOnShutdownCallback(base::BindOnce(
&PlatformKeysServiceImpl::OnDelegateShutDown, base::Unretained(this)));
}
PlatformKeysServiceImpl::~PlatformKeysServiceImpl() {
// Destroy the delegate as it calls back into OnDelegateShutdown() which we
// should not call on a partially-destroyed `this`.
delegate_.reset();
}
void PlatformKeysServiceImpl::AddObserver(
PlatformKeysServiceObserver* observer) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
observers_.AddObserver(observer);
}
void PlatformKeysServiceImpl::RemoveObserver(
PlatformKeysServiceObserver* observer) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
observers_.RemoveObserver(observer);
}
void PlatformKeysServiceImpl::OnDelegateShutDown() {
for (auto& observer : observers_) {
observer.OnPlatformKeysServiceShutDown();
}
}
// The rest of the methods - the NSS-specific part of the implementation -
// resides in the platform_keys_service_nss.cc file.
} // namespace platform_keys
} // namespace ash
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