/* * Copyright (C) 2019 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. */ #import "config.h" #import "NfcService.h" #if ENABLE(WEB_AUTHN) #import "CtapNfcDriver.h" #import "NearFieldSPI.h" #import "NfcConnection.h" #import <wtf/BlockPtr.h> #import <wtf/RetainPtr.h> #import <wtf/RunLoop.h> #import "NearFieldSoftLink.h" namespace WebKit { NfcService::NfcService(Observer& observer) : FidoService(observer) , m_restartTimer(RunLoop::main(), this, &NfcService::platformStartDiscovery) { } NfcService::~NfcService() { } bool NfcService::isAvailable() { #if HAVE(NEAR_FIELD) return [[getNFHardwareManagerClass() sharedHardwareManager] areFeaturesSupported:NFFeatureReaderMode outError:nil]; #else return false; #endif } void NfcService::didConnectTag() { #if HAVE(NEAR_FIELD) auto connection = m_connection; ASSERT(connection); getInfo(WTF::makeUnique<CtapNfcDriver>(connection.releaseNonNull())); #endif } void NfcService::didDetectMultipleTags() const { if (auto* observer = this->observer()) observer->serviceStatusUpdated(WebAuthenticationStatus::MultipleNFCTagsPresent); } #if HAVE(NEAR_FIELD) void NfcService::setConnection(Ref<NfcConnection>&& connection) { m_connection = WTFMove(connection); } #endif void NfcService::startDiscoveryInternal() { platformStartDiscovery(); } void NfcService::restartDiscoveryInternal() { #if HAVE(NEAR_FIELD) if (m_connection) m_connection->stop(); #endif m_restartTimer.startOneShot(1_s); // Magic number to give users enough time for reactions. } void NfcService::platformStartDiscovery() { #if HAVE(NEAR_FIELD) if (!isAvailable()) return; // Will be executed in a different thread. auto callback = makeBlockPtr([weakThis = makeWeakPtr(*this), this] (NFReaderSession *session, NSError *error) mutable { ASSERT(!RunLoop::isMain()); if (error) { LOG_ERROR("Couldn't start a NFC reader session: %@", error); return; } RunLoop::main().dispatch([weakThis = WTFMove(weakThis), this, session = retainPtr(session)] () mutable { if (!weakThis) { [session endSession]; return; } // NfcConnection will take care of polling tags and connecting to them. m_connection = NfcConnection::create(WTFMove(session), *this); }); }); [[getNFHardwareManagerClass() sharedHardwareManager] startReaderSession:callback.get()]; #endif // HAVE(NEAR_FIELD) } } // namespace WebKit #endif // ENABLE(WEB_AUTHN)