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/*
* Copyright (C) 2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(WEB_AUTHN)
#include "Authenticator.h"
#include "AuthenticatorPresenterCoordinator.h"
#include "AuthenticatorTransportService.h"
#include "WebAuthenticationRequestData.h"
#include <WebCore/AuthenticatorResponse.h>
#include <WebCore/ExceptionData.h>
#include <wtf/CompletionHandler.h>
#include <wtf/HashSet.h>
#include <wtf/Noncopyable.h>
#include <wtf/RunLoop.h>
#include <wtf/Vector.h>
OBJC_CLASS LAContext;
namespace API {
class WebAuthenticationPanel;
}
namespace WebKit {
class AuthenticatorManager : public AuthenticatorTransportService::Observer, public Authenticator::Observer {
WTF_MAKE_FAST_ALLOCATED;
WTF_MAKE_NONCOPYABLE(AuthenticatorManager);
public:
using Respond = std::variant<Ref<WebCore::AuthenticatorResponse>, WebCore::ExceptionData>;
using Callback = CompletionHandler<void(Respond&&)>;
using TransportSet = HashSet<WebCore::AuthenticatorTransport, WTF::IntHash<WebCore::AuthenticatorTransport>, WTF::StrongEnumHashTraits<WebCore::AuthenticatorTransport>>;
using AuthenticatorTransportService::Observer::weakPtrFactory;
using AuthenticatorTransportService::Observer::WeakValueType;
using AuthenticatorTransportService::Observer::WeakPtrImplType;
const static size_t maxTransportNumber;
AuthenticatorManager();
virtual ~AuthenticatorManager() = default;
void handleRequest(WebAuthenticationRequestData&&, Callback&&);
void cancelRequest(const WebCore::PageIdentifier&, const std::optional<WebCore::FrameIdentifier>&); // Called from WebPageProxy/WebProcessProxy.
void cancelRequest(const API::WebAuthenticationPanel&); // Called from panel clients.
void cancel(); // Called from the presenter.
virtual bool isMock() const { return false; }
virtual bool isVirtual() const { return false; }
void enableNativeSupport();
protected:
RunLoop::Timer& requestTimeOutTimer() { return m_requestTimeOutTimer; }
void clearStateAsync(); // To void cyclic dependence.
void clearState();
void invokePendingCompletionHandler(Respond&&);
void decidePolicyForLocalAuthenticator(CompletionHandler<void(LocalAuthenticatorPolicy)>&&);
TransportSet getTransports() const;
virtual void runPanel();
void selectAssertionResponse(Vector<Ref<WebCore::AuthenticatorAssertionResponse>>&&, WebAuthenticationSource, CompletionHandler<void(WebCore::AuthenticatorAssertionResponse*)>&&);
void startDiscovery(const TransportSet&);
private:
enum class Mode {
Compatible,
Native,
};
// AuthenticatorTransportService::Observer
void authenticatorAdded(Ref<Authenticator>&&) final;
void serviceStatusUpdated(WebAuthenticationStatus) final;
// Authenticator::Observer
void respondReceived(Respond&&) final;
void downgrade(Authenticator* id, Ref<Authenticator>&& downgradedAuthenticator) final;
void authenticatorStatusUpdated(WebAuthenticationStatus) final;
void requestPin(uint64_t retries, CompletionHandler<void(const WTF::String&)>&&) final;
void requestLAContextForUserVerification(CompletionHandler<void(LAContext *)>&&) final;
void cancelRequest() final;
// Overriden by MockAuthenticatorManager.
virtual UniqueRef<AuthenticatorTransportService> createService(WebCore::AuthenticatorTransport, AuthenticatorTransportService::Observer&) const;
// Overriden to return every exception for tests to confirm.
virtual void respondReceivedInternal(Respond&&) { }
virtual void filterTransports(TransportSet&) const;
virtual void runPresenterInternal(const TransportSet&);
void initTimeOutTimer();
void timeOutTimerFired();
void runPresenter();
void restartDiscovery();
void dispatchPanelClientCall(Function<void(const API::WebAuthenticationPanel&)>&&) const;
// Request: We only allow one request per time. A new request will cancel any pending ones.
WebAuthenticationRequestData m_pendingRequestData;
Callback m_pendingCompletionHandler; // Should not be invoked directly, use invokePendingCompletionHandler.
RunLoop::Timer m_requestTimeOutTimer;
std::unique_ptr<AuthenticatorPresenterCoordinator> m_presenter;
Vector<UniqueRef<AuthenticatorTransportService>> m_services;
HashSet<Ref<Authenticator>> m_authenticators;
Mode m_mode { Mode::Compatible };
};
} // namespace WebKit
#endif // ENABLE(WEB_AUTHN)
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