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keypairinfo.cpp
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keypairinfo.cpp

/* smartcard/keypairinfo.cpp
This file is part of Kleopatra, the KDE keymanager
SPDX-FileCopyrightText: 2020 g10 Code GmbH
SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "keypairinfo.h"
#include <QString>
#include <QStringList>
#include <QTimeZone>
using namespace Kleo::SmartCard;
using namespace Qt::Literals::StringLiterals;
// static
KeyPairInfo KeyPairInfo::fromStatusLine(const std::string &s)
{
// The format of a KEYPAIRINFO line is
// KEYPAIRINFO <hexgrip> <keyref> [usage] [keytime] [algostr]
// The string s does not contain the leading "KEYPAIRINFO ".
KeyPairInfo info;
const auto values = QString::fromStdString(s).split(QLatin1Char(' '));
if (values.size() < 2) {
return info;
}
info.grip = values[0].toStdString();
info.keyRef = values[1].toStdString();
if (values.size() >= 3) {
info.usage = values[2].toStdString();
}
if (values.size() >= 4 && !values[3].isEmpty() && values[3] != "-"_L1) {
bool ok;
const qint64 secondsSinceEpoch = values[3].toLongLong(&ok);
if (ok) {
info.keyTime = QDateTime::fromSecsSinceEpoch(secondsSinceEpoch, QTimeZone::utc());
}
}
if (values.size() >= 5) {
info.algorithm = values[4].toStdString();
}
return info;
}
bool KeyPairInfo::canAuthenticate() const
{
return usage.find('a') != std::string::npos;
}
bool KeyPairInfo::canCertify() const
{
return usage.find('c') != std::string::npos;
}
bool KeyPairInfo::canEncrypt() const
{
return usage.find('e') != std::string::npos;
}
bool KeyPairInfo::canSign() const
{
return usage.find('s') != std::string::npos;
}
void KeyPairInfo::update(const KeyPairInfo &other)
{
Q_ASSERT(keyRef == other.keyRef);
if (keyRef != other.keyRef) {
return;
}
if (grip != other.grip) {
// reset all infos if the grip changed
grip = other.grip;
usage = std::string();
keyTime = QDateTime{};
algorithm = std::string();
}
// now update all infos from other's infos unless other's infos are empty or not specified
if (!other.usage.empty() && other.usage != "-") {
usage = other.usage;
}
if (other.keyTime.isValid()) {
keyTime = other.keyTime;
}
if (!other.algorithm.empty() && other.algorithm != "-") {
algorithm = other.algorithm;
}
}
// C++20: Replace with defaulted equality operator
bool KeyPairInfo::operator==(const KeyPairInfo &other) const
{
return keyRef == other.keyRef && grip == other.grip && usage == other.usage && keyTime == other.keyTime && algorithm == other.algorithm;
}
// C++20: Remove
bool KeyPairInfo::operator!=(const KeyPairInfo &other) const
{
return !operator==(other);
}

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