lubuntu-connection-editor/connectionsettingsengine.cpp

#include "connectionsettingsengine.h"
#include <QDebug>

bool ConnectionSettingsEngine::wipeClonedMacAddress = false;
QString ConnectionSettingsEngine::targetConnUuidStr = QString();

/*
 * The configuration map:
 *
 * connName: QString
 * autoconnectEnabled: bool
 * autoconnectPriority: int
 * allUsersMayConnect: bool
 * vpnAutoconnectEnabled: bool
 * autoconnectVpn: QString
 * meteredConnection: ConnectionSettingsEngine::Metered
 * device: QString
 * clonedMacAddress: QString
 * mtu: int
 *
 * For Ethernet devices only:
 * autoLinkNegotiation: ConnectionSettingsEngine::LinkNegotiation
 * linkSpeed: ConnectionSettingsEngine::LinkSpeed
 * duplexMode: ConnectionSettingsEngine::DuplexMode
 */

ConnectionSettingsEngine::ConnectionSettingsEngine()
{
}

QVariantMap ConnectionSettingsEngine::readConnectionSettings(QString connUuidStr)
{
    // Contains adapted code from plasma-nm
    NetworkManager::Connection::Ptr conn = NetworkManager::findConnectionByUuid(connUuidStr);
    NetworkManager::ConnectionSettings::Ptr connSettings = conn->settings();
    NetworkManager::WiredSetting::Ptr connWiredSetting = connSettings->setting(NetworkManager::Setting::Wired).dynamicCast<NetworkManager::WiredSetting>();
    NetworkManager::WirelessSetting::Ptr connWirelessSetting = connSettings->setting(NetworkManager::Setting::Wireless).dynamicCast<NetworkManager::WirelessSetting>();
    QVariantMap result;
    result.insert("connName", connSettings->id());
    result.insert("autoconnectEnabled", connSettings->autoconnect());
    result.insert("autoconnectPriority", connSettings->autoconnectPriority());
    result.insert("allUsersMayConnect", connSettings->permissions().isEmpty() ? true : false);

    QStringList secondaryConns = connSettings->secondaries();

    NetworkManager::Connection::List list = NetworkManager::listConnections();
    QStringList vpnList;

    for (const NetworkManager::Connection::Ptr &conn : list) {
        NetworkManager::ConnectionSettings::Ptr conSet = conn->settings();
        if (conSet->connectionType() == NetworkManager::ConnectionSettings::Vpn
            || conSet->connectionType() == NetworkManager::ConnectionSettings::WireGuard) {
            vpnList.append(conSet->uuid());
        }
    }

    if (secondaryConns.isEmpty() || vpnList.isEmpty()) {
        result.insert("vpnAutoconnectEnabled", false);
        result.insert("autoconnectVpn", "");
    } else {
        for (const QString &vpnKey : vpnList) {
            if (secondaryConns.contains(vpnKey)) {
                result.insert("vpnAutoconnectEnabled", true);
                result.insert("autoconnectVpn", vpnKey);
                break;
            }
        }
    }

    switch(connSettings->metered()) {
    case NetworkManager::ConnectionSettings::MeteredUnknown:
    case NetworkManager::ConnectionSettings::MeteredGuessYes:
    case NetworkManager::ConnectionSettings::MeteredGuessNo:
        result.insert("meteredConnection", ConnectionSettingsEngine::MeteredAutomatic);
        break;
    case NetworkManager::ConnectionSettings::MeteredYes:
        result.insert("meteredConnection", ConnectionSettingsEngine::MeteredYes);
        break;
    case NetworkManager::ConnectionSettings::MeteredNo:
        result.insert("meteredConnection", ConnectionSettingsEngine::MeteredNo);
        break;
    }

    result.insert("device", connSettings->interfaceName());

    if (!connWiredSetting.isNull()) {
        result.insert("clonedMacAddress", NetworkManager::macAddressAsString(connWiredSetting->clonedMacAddress()));
        result.insert("mtu", connWiredSetting->mtu());

        if (connWiredSetting->autoNegotiate()) {
            result.insert("autoLinkNegotiation", ConnectionSettingsEngine::NegotiationAutomatic);
            result.insert("linkSpeed", ConnectionSettingsEngine::SpeedUnknown);
            result.insert("duplexMode", ConnectionSettingsEngine::DuplexUnknown);
        } else if (connWiredSetting->speed() != 0 && connWiredSetting->duplexType() != NetworkManager::WiredSetting::UnknownDuplexType) {
            result.insert("autoLinkNegotiation", ConnectionSettingsEngine::NegotiationManual);
            switch (connWiredSetting->speed()) {
            case 10:
                result.insert("linkSpeed", ConnectionSettingsEngine::Speed10Mbps);
                break;
            case 100:
                result.insert("linkSpeed", ConnectionSettingsEngine::Speed100Mbps);
                break;
            case 1000:
                result.insert("linkSpeed", ConnectionSettingsEngine::Speed1Gbps);
                break;
            case 2500:
                result.insert("linkSpeed", ConnectionSettingsEngine::Speed2_5Gbps);
                break;
            case 5000:
                result.insert("linkSpeed", ConnectionSettingsEngine::Speed5Gbps);
                break;
            case 10000:
                result.insert("linkSpeed", ConnectionSettingsEngine::Speed10Gbps);
                break;
            case 40000:
                result.insert("linkSpeed", ConnectionSettingsEngine::Speed40Gbps);
                break;
            case 100000:
                result.insert("linkSpeed", ConnectionSettingsEngine::Speed100Gbps);
                break;
            }
            switch (connWiredSetting->duplexType()) {
            case NetworkManager::WiredSetting::UnknownDuplexType:
                result.insert("duplexType", ConnectionSettingsEngine::DuplexUnknown);
                break;
            case NetworkManager::WiredSetting::Half:
                result.insert("duplexType", ConnectionSettingsEngine::DuplexHalf);
                break;
            case NetworkManager::WiredSetting::Full:
                result.insert("duplexType", ConnectionSettingsEngine::DuplexFull);
                break;
            }

            result.insert("duplexMode", connWiredSetting->duplexType());
        } else {
            result.insert("autoLinkNegotiation", ConnectionSettingsEngine::NegotiationIgnore);
            result.insert("linkSpeed", ConnectionSettingsEngine::SpeedUnknown);
            result.insert("duplexMode", ConnectionSettingsEngine::DuplexUnknown);
        }
    } else if (!connWirelessSetting.isNull()) {
        result.insert("clonedMacAddress", NetworkManager::macAddressAsString(connWirelessSetting->clonedMacAddress()));
        result.insert("mtu", connWirelessSetting->mtu());
    }
    // TODO: pick up here

    return result;
}

void ConnectionSettingsEngine::modifyConnectionSettings(QString connUuidStr, QVariantMap settings)
{
    // Contains adapted code from plasma-nm
    wipeClonedMacAddress = false;
    NetworkManager::Connection::Ptr conn = NetworkManager::findConnectionByUuid(connUuidStr);
    NetworkManager::ConnectionSettings::Ptr connSettings = conn->settings();
    NetworkManager::WiredSetting::Ptr connWiredSetting = connSettings->setting(NetworkManager::Setting::Wired).dynamicCast<NetworkManager::WiredSetting>();
    NetworkManager::WirelessSetting::Ptr connWirelessSetting = connSettings->setting(NetworkManager::Setting::Wireless).dynamicCast<NetworkManager::WirelessSetting>();

    if (settings["connName"].isValid()) {
        connSettings->setId(settings["connName"].toString());
    }
    if (settings["autoconnectEnabled"].isValid()) {
        connSettings->setAutoconnect(settings["autoconnectEnabled"].toBool());
    }
    if (settings["autoconnectPriority"].isValid()) {
        connSettings->setAutoconnectPriority(settings["autoconnectPriority"].toInt());
    }
    if (settings["allUsersMayConnect"].isValid()) {
        if (settings["allUsersMayConnect"].toBool()) {
            connSettings->setPermissions(QHash<QString, QString>());
        } else {
            if (connSettings->permissions().isEmpty()) {
                connSettings->addToPermissions(userName(), QString());
            } // Otherwise we just leave the permissions as-is
        }
    }

    if (settings["vpnAutoconnectEnabled"].isValid()) {
        if (settings["vpnAutoconnectEnabled"].toBool()) {
            connSettings->setSecondaries(QStringList() << settings["autoconnectVpn"].toString());
        }
    }

    if (settings["meteredConnection"].isValid()) {
        switch (settings["meteredConnection"].toInt()) {
        case ConnectionSettingsEngine::MeteredAutomatic:
            connSettings->setMetered(NetworkManager::ConnectionSettings::MeteredUnknown);
            break;
        case ConnectionSettingsEngine::MeteredYes:
            connSettings->setMetered(NetworkManager::ConnectionSettings::MeteredYes);
            break;
        case ConnectionSettingsEngine::MeteredNo:
            connSettings->setMetered(NetworkManager::ConnectionSettings::MeteredNo);
            break;
        }
    }

    if (settings["device"].isValid()) {
        connSettings->setInterfaceName(settings["device"].toString());
    }

    QByteArray macBin = NetworkManager::macAddressFromString(settings["clonedMacAddress"].toString());
    if (settings["clonedMacAddress"].toString().length() != 17) {
        wipeClonedMacAddress = true;
    }

    if (!connWiredSetting.isNull()) {
        if (!wipeClonedMacAddress) {
            connWiredSetting->setClonedMacAddress(macBin);
        }

        if (settings["mtu"].isValid()) {
            connWiredSetting->setMtu(settings["mtu"].toUInt());
        }

        if (settings["autoLinkNegotiation"].isValid()) {
            if (settings["autoLinkNegotiation"].toInt() == ConnectionSettingsEngine::NegotiationAutomatic) {
                connWiredSetting->setAutoNegotiate(true);
                connWiredSetting->setSpeed(0);
                connWiredSetting->setDuplexType(NetworkManager::WiredSetting::UnknownDuplexType);
            } else if (settings["autoLinkNegotiation"].toInt() == ConnectionSettingsEngine::NegotiationManual) {
                connWiredSetting->setAutoNegotiate(false);
                switch (settings["linkSpeed"].toInt()) {
                case ConnectionSettingsEngine::Speed10Mbps:
                    connWiredSetting->setSpeed(10);
                    break;
                case ConnectionSettingsEngine::Speed100Mbps:
                    connWiredSetting->setSpeed(100);
                    break;
                case ConnectionSettingsEngine::Speed1Gbps:
                    connWiredSetting->setSpeed(1000);
                    break;
                case ConnectionSettingsEngine::Speed2_5Gbps:
                    connWiredSetting->setSpeed(2500);
                    break;
                case ConnectionSettingsEngine::Speed5Gbps:
                    connWiredSetting->setSpeed(5000);
                    break;
                case ConnectionSettingsEngine::Speed10Gbps:
                    connWiredSetting->setSpeed(10000);
                    break;
                case ConnectionSettingsEngine::Speed40Gbps:
                    connWiredSetting->setSpeed(40000);
                    break;
                case ConnectionSettingsEngine::Speed100Gbps:
                    connWiredSetting->setSpeed(100000);
                    break;
                }
                switch (settings["duplexMode"].toInt()) {
                case ConnectionSettingsEngine::DuplexUnknown:
                    connWiredSetting->setDuplexType(NetworkManager::WiredSetting::UnknownDuplexType);
                    break;
                case ConnectionSettingsEngine::DuplexHalf:
                    connWiredSetting->setDuplexType(NetworkManager::WiredSetting::Half);
                    break;
                case ConnectionSettingsEngine::DuplexFull:
                    connWiredSetting->setDuplexType(NetworkManager::WiredSetting::Full);
                    break;
                }
            } else {
                connWiredSetting->setAutoNegotiate(false);
                connWiredSetting->setSpeed(0);
                connWiredSetting->setDuplexType(NetworkManager::WiredSetting::UnknownDuplexType);
            }
        }
    } else if (!connWirelessSetting.isNull()) {
        if (!wipeClonedMacAddress) {
            connWirelessSetting->setClonedMacAddress(macBin);
        }

        if (settings["mtu"].isValid()) {
            connWirelessSetting->setMtu(settings["mtu"].toUInt());
        }
    }

    // TODO: pick up here

    targetConnUuidStr = connUuidStr;
    QDBusPendingReply<> reply = conn->update(connSettings->toMap());
    auto watcher = new QDBusPendingCallWatcher(reply);
    QObject::connect(watcher, &QDBusPendingCallWatcher::finished, saveReplyFinished);
}

void ConnectionSettingsEngine::saveReplyFinished()
{
    NetworkManager::Connection::Ptr conn = NetworkManager::findConnectionByUuid(targetConnUuidStr);
    NetworkManager::ConnectionSettings::Ptr connSettings = conn->settings();
    NetworkManager::WiredSetting::Ptr connWiredSetting = connSettings->setting(NetworkManager::Setting::Wired).dynamicCast<NetworkManager::WiredSetting>();
    NetworkManager::WirelessSetting::Ptr connWirelessSetting = connSettings->setting(NetworkManager::Setting::Wireless).dynamicCast<NetworkManager::WirelessSetting>();
    if (wipeClonedMacAddress) {
        // Wiping a MAC address with NetworkManagerQt is surprisingly difficult, so we do it with nmcli instead.
        QProcess clonedMacWiper;
        clonedMacWiper.setProgram("bash");
        if (!connWiredSetting.isNull()) {
            clonedMacWiper.setArguments(QStringList() << QString("-c") << QString("nmcli connection modify %1 ethernet.cloned-mac-address \"\"").arg(conn->uuid()));
            clonedMacWiper.start();
            clonedMacWiper.waitForFinished();
        } else if (!connWirelessSetting.isNull()) {
            clonedMacWiper.setArguments(QStringList() << QString("-c") << QString("nmcli connection modify %1 wifi.cloned-mac-address \"\"").arg(conn->uuid()));
            clonedMacWiper.start();
            clonedMacWiper.waitForFinished();
        }
    }
}

QString ConnectionSettingsEngine::userName()
{
    QProcess userNameGetter;
    userNameGetter.setProgram("whoami");
    userNameGetter.start();
    userNameGetter.waitForFinished();
    return QString(userNameGetter.readAllStandardOutput());
}