1/*
2 * Copyright (C) 2018 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#if ENABLE(WEB_AUTHN)
29
30#include "WebAuthenticationRequestData.h"
31#include <WebCore/ExceptionData.h>
32#include <WebCore/PublicKeyCredentialData.h>
33#include <wtf/Forward.h>
34#include <wtf/RefCounted.h>
35#include <wtf/WeakPtr.h>
36
37namespace WebKit {
38
39class Authenticator : public RefCounted<Authenticator>, public CanMakeWeakPtr<Authenticator> {
40public:
41 using Respond = Variant<WebCore::PublicKeyCredentialData, WebCore::ExceptionData>;
42
43 class Observer : public CanMakeWeakPtr<Observer> {
44 public:
45 virtual ~Observer() = default;
46 virtual void respondReceived(Respond&&) = 0;
47 virtual void downgrade(Authenticator* id, Ref<Authenticator>&& downgradedAuthenticator) = 0;
48 };
49
50 virtual ~Authenticator() = default;
51
52 void setObserver(Observer& observer) { m_observer = makeWeakPtr(observer); }
53
54 // This operation is guaranteed to execute asynchronously.
55 void handleRequest(const WebAuthenticationRequestData&);
56
57protected:
58 Authenticator() = default;
59
60 Observer* observer() const { return m_observer.get(); }
61 const WebAuthenticationRequestData& requestData() const { return m_pendingRequestData; }
62
63 void receiveRespond(Respond&&) const;
64
65private:
66 virtual void makeCredential() = 0;
67 virtual void getAssertion() = 0;
68
69 WeakPtr<Observer> m_observer;
70 WebAuthenticationRequestData m_pendingRequestData;
71};
72
73} // namespace WebKit
74
75#endif // ENABLE(WEB_AUTHN)
76