273 lines
9.3 KiB
C++
273 lines
9.3 KiB
C++
/**
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* Copyright 2015 Albert Vaca <albertvaka@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License or (at your option) version 3 or any later version
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* accepted by the membership of KDE e.V. (or its successor approved
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* by the membership of KDE e.V.), which shall act as a proxy
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* defined in Section 14 of version 3 of the license.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "kdeconnectconfig.h"
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#include <KLocalizedString>
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#include <QFile>
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#include <QDebug>
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#include <QFileInfo>
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#include <QUuid>
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#include <QDir>
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#include <QStandardPaths>
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#include <QCoreApplication>
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#include <QHostInfo>
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#include <QSettings>
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#include <QSslCertificate>
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#include <QtCrypto>
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#include "core_debug.h"
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#include "dbushelper.h"
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#include "daemon.h"
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struct KdeConnectConfigPrivate {
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// The Initializer object sets things up, and also does cleanup when it goes out of scope
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// Note it's not being used anywhere. That's intended
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QCA::Initializer m_qcaInitializer;
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QCA::PrivateKey m_privateKey;
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QSslCertificate m_certificate; // Use QSslCertificate instead of QCA::Certificate due to compatibility with QSslSocket
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QSettings* m_config;
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QSettings* m_trustedDevices;
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};
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KdeConnectConfig* KdeConnectConfig::instance()
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{
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static KdeConnectConfig* kcc = new KdeConnectConfig();
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return kcc;
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}
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KdeConnectConfig::KdeConnectConfig()
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: d(new KdeConnectConfigPrivate)
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{
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//qCDebug(KDECONNECT_CORE) << "QCA supported capabilities:" << QCA::supportedFeatures().join(",");
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if(!QCA::isSupported("rsa")) {
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qCritical() << "Could not find support for RSA in your QCA installation";
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Daemon::instance()->reportError(
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i18n("KDE Connect failed to start"),
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i18n("Could not find support for RSA in your QCA installation. If your "
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"distribution provides separate packets for QCA-ossl and QCA-gnupg, "
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"make sure you have them installed and try again."));
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return;
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}
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//Make sure base directory exists
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QDir().mkpath(baseConfigDir().path());
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//.config/kdeconnect/config
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d->m_config = new QSettings(baseConfigDir().absoluteFilePath(QStringLiteral("config")), QSettings::IniFormat);
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d->m_trustedDevices = new QSettings(baseConfigDir().absoluteFilePath(QStringLiteral("trusted_devices")), QSettings::IniFormat);
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loadPrivateKey();
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loadCertificate();
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}
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QString KdeConnectConfig::name()
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{
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QString username;
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#ifdef Q_OS_WIN
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username = qgetenv("USERNAME");
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#else
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username = qgetenv("USER");
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#endif
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QString defaultName = username + '@' + QHostInfo::localHostName();
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QString name = d->m_config->value(QStringLiteral("name"), defaultName).toString();
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return name;
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}
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void KdeConnectConfig::setName(const QString& name)
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{
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d->m_config->setValue(QStringLiteral("name"), name);
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d->m_config->sync();
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}
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QString KdeConnectConfig::deviceType()
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{
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return QStringLiteral("desktop"); // TODO
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}
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QString KdeConnectConfig::deviceId()
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{
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return d->m_certificate.subjectInfo(QSslCertificate::CommonName).constFirst();
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}
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QString KdeConnectConfig::privateKeyPath()
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{
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return baseConfigDir().absoluteFilePath(QStringLiteral("privateKey.pem"));
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}
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QString KdeConnectConfig::certificatePath()
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{
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return baseConfigDir().absoluteFilePath(QStringLiteral("certificate.pem"));
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}
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QSslCertificate KdeConnectConfig::certificate()
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{
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return d->m_certificate;
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}
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QDir KdeConnectConfig::baseConfigDir()
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{
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QString configPath = QStandardPaths::writableLocation(QStandardPaths::ConfigLocation);
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QString kdeconnectConfigPath = QDir(configPath).absoluteFilePath(QStringLiteral("kdeconnect"));
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return QDir(kdeconnectConfigPath);
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}
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QStringList KdeConnectConfig::trustedDevices()
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{
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const QStringList& list = d->m_trustedDevices->childGroups();
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return list;
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}
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void KdeConnectConfig::addTrustedDevice(const QString& id, const QString& name, const QString& type)
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{
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d->m_trustedDevices->beginGroup(id);
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d->m_trustedDevices->setValue(QStringLiteral("name"), name);
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d->m_trustedDevices->setValue(QStringLiteral("type"), type);
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d->m_trustedDevices->endGroup();
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d->m_trustedDevices->sync();
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QDir().mkpath(deviceConfigDir(id).path());
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}
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KdeConnectConfig::DeviceInfo KdeConnectConfig::getTrustedDevice(const QString& id)
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{
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d->m_trustedDevices->beginGroup(id);
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KdeConnectConfig::DeviceInfo info;
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info.deviceName = d->m_trustedDevices->value(QStringLiteral("name"), QLatin1String("unnamed")).toString();
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info.deviceType = d->m_trustedDevices->value(QStringLiteral("type"), QLatin1String("unknown")).toString();
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d->m_trustedDevices->endGroup();
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return info;
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}
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void KdeConnectConfig::removeTrustedDevice(const QString& deviceId)
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{
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d->m_trustedDevices->remove(deviceId);
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d->m_trustedDevices->sync();
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//We do not remove the config files.
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}
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// Utility functions to set and get a value
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void KdeConnectConfig::setDeviceProperty(const QString& deviceId, const QString& key, const QString& value)
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{
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d->m_trustedDevices->beginGroup(deviceId);
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d->m_trustedDevices->setValue(key, value);
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d->m_trustedDevices->endGroup();
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d->m_trustedDevices->sync();
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}
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QString KdeConnectConfig::getDeviceProperty(const QString& deviceId, const QString& key, const QString& defaultValue)
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{
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QString value;
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d->m_trustedDevices->beginGroup(deviceId);
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value = d->m_trustedDevices->value(key, defaultValue).toString();
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d->m_trustedDevices->endGroup();
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return value;
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}
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QDir KdeConnectConfig::deviceConfigDir(const QString& deviceId)
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{
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QString deviceConfigPath = baseConfigDir().absoluteFilePath(deviceId);
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return QDir(deviceConfigPath);
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}
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QDir KdeConnectConfig::pluginConfigDir(const QString& deviceId, const QString& pluginName)
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{
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QString deviceConfigPath = baseConfigDir().absoluteFilePath(deviceId);
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QString pluginConfigDir = QDir(deviceConfigPath).absoluteFilePath(pluginName);
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return QDir(pluginConfigDir);
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}
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void KdeConnectConfig::loadPrivateKey()
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{
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QString keyPath = privateKeyPath();
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QFile privKey(keyPath);
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if (privKey.exists() && privKey.open(QIODevice::ReadOnly)) {
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d->m_privateKey = QCA::PrivateKey::fromPEM(privKey.readAll());
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} else {
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d->m_privateKey = QCA::KeyGenerator().createRSA(2048);
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if (!privKey.open(QIODevice::ReadWrite | QIODevice::Truncate)) {
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Daemon::instance()->reportError(QStringLiteral("KDE Connect"), i18n("Could not store private key file: %1", keyPath));
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} else {
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privKey.setPermissions(strict);
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privKey.write(d->m_privateKey.toPEM().toLatin1());
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}
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}
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//Extra security check
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if (QFile::permissions(keyPath) != strict) {
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qCWarning(KDECONNECT_CORE) << "Warning: KDE Connect private key file has too open permissions " << keyPath;
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}
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}
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void KdeConnectConfig::loadCertificate()
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{
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QString certPath = certificatePath();
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QFile cert(certPath);
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if (cert.exists() && cert.open(QIODevice::ReadOnly)) {
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d->m_certificate = QSslCertificate::fromPath(certPath).at(0);
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} else {
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// No certificate yet. Probably first run. Let's generate one!
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QString uuid = QUuid::createUuid().toString();
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DbusHelper::filterNonExportableCharacters(uuid);
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qCDebug(KDECONNECT_CORE) << "My id:" << uuid;
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// FIXME: We only use QCA here to generate the cert and key, would be nice to get rid of it completely.
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// The same thing we are doing with QCA could be done invoking openssl (although it's potentially less portable):
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// openssl req -new -x509 -sha256 -newkey rsa:2048 -nodes -keyout privateKey.pem -days 3650 -out certificate.pem -subj "/O=KDE/OU=KDE Connect/CN=_e6e29ad4_2b31_4b6d_8f7a_9872dbaa9095_"
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QCA::CertificateOptions certificateOptions = QCA::CertificateOptions();
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QDateTime startTime = QDateTime::currentDateTime().addYears(-1);
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QDateTime endTime = startTime.addYears(10);
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QCA::CertificateInfo certificateInfo;
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certificateInfo.insert(QCA::CommonName, uuid);
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certificateInfo.insert(QCA::Organization,QStringLiteral("KDE"));
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certificateInfo.insert(QCA::OrganizationalUnit,QStringLiteral("Kde connect"));
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certificateOptions.setInfo(certificateInfo);
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certificateOptions.setFormat(QCA::PKCS10);
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certificateOptions.setSerialNumber(QCA::BigInteger(10));
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certificateOptions.setValidityPeriod(startTime, endTime);
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d->m_certificate = QSslCertificate(QCA::Certificate(certificateOptions, d->m_privateKey).toPEM().toLatin1());
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if (!cert.open(QIODevice::ReadWrite | QIODevice::Truncate)) {
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Daemon::instance()->reportError(QStringLiteral("KDE Connect"), i18n("Could not store certificate file: %1", certPath));
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} else {
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cert.setPermissions(strict);
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cert.write(d->m_certificate.toPem());
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}
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}
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}
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