Source/WebKit/UIProcess/WebAuthentication/WebAuthenticatorCoordinatorProxy.cpp

/*
 * 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
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 * 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
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#include "config.h"
#include "WebAuthenticatorCoordinatorProxy.h"

#if ENABLE(WEB_AUTHN)

#include "AuthenticatorManager.h"
#include "LocalService.h"
#include "WebAuthenticationFlags.h"
#include "WebAuthenticatorCoordinatorProxyMessages.h"
#include "WebPageProxy.h"
#include "WebProcessProxy.h"
#include "WebsiteDataStore.h"
#include <WebCore/ExceptionData.h>
#include <WebCore/PublicKeyCredentialData.h>
#include <wtf/MainThread.h>
#include <wtf/RunLoop.h>

namespace WebKit {

WebAuthenticatorCoordinatorProxy::WebAuthenticatorCoordinatorProxy(WebPageProxy& webPageProxy)
    : m_webPageProxy(webPageProxy)
{
    m_webPageProxy.process().addMessageReceiver(Messages::WebAuthenticatorCoordinatorProxy::messageReceiverName(), m_webPageProxy.webPageID(), *this);
}

WebAuthenticatorCoordinatorProxy::~WebAuthenticatorCoordinatorProxy()
{
    m_webPageProxy.process().removeMessageReceiver(Messages::WebAuthenticatorCoordinatorProxy::messageReceiverName(), m_webPageProxy.webPageID());
}

void WebAuthenticatorCoordinatorProxy::makeCredential(FrameIdentifier frameId, const Vector<uint8_t>& hash, const WebCore::PublicKeyCredentialCreationOptions& options, RequestCompletionHandler&& handler)
{
    handleRequest({ hash, options, makeWeakPtr(m_webPageProxy), WebAuthenticationPanelResult::Unavailable, nullptr, GlobalFrameIdentifier { m_webPageProxy.webPageID(), frameId } }, WTFMove(handler));
}

void WebAuthenticatorCoordinatorProxy::getAssertion(FrameIdentifier frameId, const Vector<uint8_t>& hash, const WebCore::PublicKeyCredentialRequestOptions& options, RequestCompletionHandler&& handler)
{
    handleRequest({ hash, options, makeWeakPtr(m_webPageProxy), WebAuthenticationPanelResult::Unavailable, nullptr, GlobalFrameIdentifier { m_webPageProxy.webPageID(), frameId } }, WTFMove(handler));
}

void WebAuthenticatorCoordinatorProxy::handleRequest(WebAuthenticationRequestData&& data, RequestCompletionHandler&& handler)
{
    auto callback = [handler = WTFMove(handler)] (Variant<WebCore::PublicKeyCredentialData, WebCore::ExceptionData>&& result) mutable {
        ASSERT(RunLoop::isMain());
        WTF::switchOn(result, [&](const WebCore::PublicKeyCredentialData& data) {
            handler(data, { });
        }, [&](const  WebCore::ExceptionData& exception) {
            handler({ }, exception);
        });
    };
    m_webPageProxy.websiteDataStore().authenticatorManager().handleRequest(WTFMove(data), WTFMove(callback));
}

void WebAuthenticatorCoordinatorProxy::isUserVerifyingPlatformAuthenticatorAvailable(QueryCompletionHandler&& handler)
{
    handler(LocalService::isAvailable());
}

} // namespace WebKit

#endif // ENABLE(WEB_AUTHN)