File indexing completed on 2024-04-28 05:34:16

 // SPDX-FileCopyrightText: 2021 Daniel Vrátil <dvratil@kde.org>
 //
 // SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "otpprovider.h"
 
 #include <QUrl>
 #include <QUrlQuery>
 #include <QDebug>
 #include <QDateTime>
 
 #include <KLocalizedString>
 
 #include <chrono>
 
 #include <liboath/oath.h>
 
 using namespace PlasmaPass;
 using namespace std::chrono_literals;
 
 namespace {
 
 static const QString otpAuthSchema = QStringLiteral("otpauth://");
 static const QString secretQueryItem = QStringLiteral("secret");
 
 QString parseOtpType(const QUrl &url)
 {
     return url.host();
 }
 
 } // namespace
 
 OTPProvider::OTPProvider(const QString &path, QObject *parent)
     : ProviderBase(path, parent)
 {
     setSecretTimeout(30s);
 }
 
 ProviderBase::HandlingResult OTPProvider::handleSecret(QStringView secret)
 {
     if (!secret.startsWith(otpAuthSchema)) {
         return HandlingResult::Continue;
     }
 
     QUrl url(secret.toString());
     const auto otpType = parseOtpType(url);
     if (otpType == QLatin1String("totp")) {
         handleTOTP(url);
     } else {
         setError(i18n("Unsupported OTP type %1", otpType));
         return HandlingResult::Stop;
     }
 
     return HandlingResult::Stop;
 }
 
 
 void OTPProvider::handleTOTP(const QUrl &url)
 {
     const QUrlQuery query(url.query());
     const auto secret = query.queryItemValue(secretQueryItem).toUtf8();
 
     char *decodedSecret = {};
     size_t decodedSecretLen = 0;
     oath_base32_decode(secret.data(), secret.size(), &decodedSecret, &decodedSecretLen);
 
     char output_otp[6] = {};
     oath_totp_generate(decodedSecret, decodedSecretLen,
             QDateTime::currentDateTime().toSecsSinceEpoch(),
             OATH_TOTP_DEFAULT_TIME_STEP_SIZE,
             OATH_TOTP_DEFAULT_START_TIME,
             6,
             output_otp);
 
     setSecret(QString::fromLatin1(output_otp, sizeof(output_otp)));
 }
 
 #include "moc_otpprovider.cpp"