feature/premium v1 migration (#1569)

* feature: premium v1 migration

* chore: added stage for macos with new qt version

* chore: downgrade qif version

* chore: minor ui fixes

client/core/api/apiDefs.h

@@ -22,12 +22,19 @@ namespace apiDefs
     namespace key
     {
         constexpr QLatin1String configVersion("config_version");
+        constexpr QLatin1String apiEndpoint("api_endpoint");
+        constexpr QLatin1String apiKey("api_key");
+        constexpr QLatin1String description("description");
+        constexpr QLatin1String name("name");
+        constexpr QLatin1String protocol("protocol");
 
         constexpr QLatin1String apiConfig("api_config");
         constexpr QLatin1String stackType("stack_type");
         constexpr QLatin1String serviceType("service_type");
 
         constexpr QLatin1String vpnKey("vpn_key");
+        constexpr QLatin1String config("config");
+        constexpr QLatin1String configs("configs");
 
         constexpr QLatin1String installationUuid("installation_uuid");
         constexpr QLatin1String workerLastUpdated("worker_last_updated");
@@ -51,6 +58,10 @@ namespace apiDefs
         constexpr QLatin1String website("website");
         constexpr QLatin1String websiteName("website_name");
         constexpr QLatin1String telegram("telegram");
+
+        constexpr QLatin1String id("id");
+        constexpr QLatin1String orderId("order_id");
+        constexpr QLatin1String migrationCode("migration_code");
     }
 
     const int requestTimeoutMsecs = 12 * 1000; // 12 secs

client/core/api/apiUtils.cpp

@@ -3,6 +3,24 @@
 #include <QDateTime>
 #include <QJsonObject>
 
+namespace
+{
+    const QByteArray AMNEZIA_CONFIG_SIGNATURE = QByteArray::fromHex("000000ff");
+
+    QString escapeUnicode(const QString &input)
+    {
+        QString output;
+        for (QChar c : input) {
+            if (c.unicode() < 0x20 || c.unicode() > 0x7E) {
+                output += QString("\\u%1").arg(QString::number(c.unicode(), 16).rightJustified(4, '0'));
+            } else {
+                output += c;
+            }
+        }
+        return output;
+    }
+}
+
 bool apiUtils::isSubscriptionExpired(const QString &subscriptionEndDate)
 {
     QDateTime now = QDateTime::currentDateTime();
@@ -27,22 +45,28 @@ apiDefs::ConfigType apiUtils::getConfigType(const QJsonObject &serverConfigObjec
     case apiDefs::ConfigSource::Telegram: {
     };
     case apiDefs::ConfigSource::AmneziaGateway: {
-        constexpr QLatin1String stackPremium("prem");
-        constexpr QLatin1String stackFree("free");
-
         constexpr QLatin1String servicePremium("amnezia-premium");
         constexpr QLatin1String serviceFree("amnezia-free");
         constexpr QLatin1String serviceExternalPremium("external-premium");
 
+        constexpr QLatin1String freeV2Endpoint(FREE_V2_ENDPOINT);
+        constexpr QLatin1String premiumV1Endpoint(PREM_V1_ENDPOINT);
+
         auto apiConfigObject = serverConfigObject.value(apiDefs::key::apiConfig).toObject();
         auto serviceType = apiConfigObject.value(apiDefs::key::serviceType).toString();
 
+        auto apiEndpoint = serverConfigObject.value(apiDefs::key::apiEndpoint).toString();
+
         if (serviceType == servicePremium) {
             return apiDefs::ConfigType::AmneziaPremiumV2;
         } else if (serviceType == serviceFree) {
             return apiDefs::ConfigType::AmneziaFreeV3;
         } else if (serviceType == serviceExternalPremium) {
             return apiDefs::ConfigType::ExternalPremium;
+        } else if (apiEndpoint.contains(premiumV1Endpoint)) {
+            return apiDefs::ConfigType::AmneziaPremiumV1;
+        } else if (apiEndpoint.contains(freeV2Endpoint)) {
+            return apiDefs::ConfigType::AmneziaFreeV2;
         }
     }
     default: {
@@ -95,3 +119,41 @@ bool apiUtils::isPremiumServer(const QJsonObject &serverConfigObject)
                                                             apiDefs::ConfigType::ExternalPremium };
     return premiumTypes.contains(getConfigType(serverConfigObject));
 }
+
+QString apiUtils::getPremiumV1VpnKey(const QJsonObject &serverConfigObject)
+{
+    if (apiUtils::getConfigType(serverConfigObject) != apiDefs::ConfigType::AmneziaPremiumV1) {
+        return {};
+    }
+
+    QList<QPair<QString, QVariant>> orderedFields;
+    orderedFields.append(qMakePair(apiDefs::key::name, serverConfigObject[apiDefs::key::name].toString()));
+    orderedFields.append(qMakePair(apiDefs::key::description, serverConfigObject[apiDefs::key::description].toString()));
+    orderedFields.append(qMakePair(apiDefs::key::configVersion, serverConfigObject[apiDefs::key::configVersion].toDouble()));
+    orderedFields.append(qMakePair(apiDefs::key::protocol, serverConfigObject[apiDefs::key::protocol].toString()));
+    orderedFields.append(qMakePair(apiDefs::key::apiEndpoint, serverConfigObject[apiDefs::key::apiEndpoint].toString()));
+    orderedFields.append(qMakePair(apiDefs::key::apiKey, serverConfigObject[apiDefs::key::apiKey].toString()));
+
+    QString vpnKeyStr = "{";
+    for (int i = 0; i < orderedFields.size(); ++i) {
+        const auto &pair = orderedFields[i];
+        if (pair.second.typeId() == QMetaType::Type::QString) {
+            vpnKeyStr += "\"" + pair.first + "\": \"" + pair.second.toString() + "\"";
+        } else if (pair.second.typeId() == QMetaType::Type::Double || pair.second.typeId() == QMetaType::Type::Int) {
+            vpnKeyStr += "\"" + pair.first + "\": " + QString::number(pair.second.toDouble(), 'f', 1);
+        }
+
+        if (i < orderedFields.size() - 1) {
+            vpnKeyStr += ", ";
+        }
+    }
+    vpnKeyStr += "}";
+
+    QByteArray vpnKeyCompressed = escapeUnicode(vpnKeyStr).toUtf8();
+    vpnKeyCompressed = qCompress(vpnKeyCompressed, 6);
+    vpnKeyCompressed = vpnKeyCompressed.mid(4);
+
+    QByteArray signedData = AMNEZIA_CONFIG_SIGNATURE + vpnKeyCompressed;
+
+    return QString("vpn://%1").arg(QString(signedData.toBase64(QByteArray::Base64UrlEncoding)));
+}

client/core/api/apiUtils.h

@@ -19,6 +19,8 @@ namespace apiUtils
     apiDefs::ConfigSource getConfigSource(const QJsonObject &serverConfigObject);
 
     amnezia::ErrorCode checkNetworkReplyErrors(const QList<QSslError> &sslErrors, QNetworkReply *reply);
+
+    QString getPremiumV1VpnKey(const QJsonObject &serverConfigObject);
 }
 
 #endif // APIUTILS_H

client/core/controllers/coreController.cpp

@@ -148,6 +148,9 @@ void CoreController::initControllers()
 
     m_apiConfigsController.reset(new ApiConfigsController(m_serversModel, m_apiServicesModel, m_settings));
     m_engine->rootContext()->setContextProperty("ApiConfigsController", m_apiConfigsController.get());
+
+    m_apiPremV1MigrationController.reset(new ApiPremV1MigrationController(m_serversModel, m_settings, this));
+    m_engine->rootContext()->setContextProperty("ApiPremV1MigrationController", m_apiPremV1MigrationController.get());
 }
 
 void CoreController::initAndroidController()
@@ -220,6 +223,8 @@ void CoreController::initSignalHandlers()
     initAutoConnectHandler();
     initAmneziaDnsToggledHandler();
     initPrepareConfigHandler();
+    initImportPremiumV2VpnKeyHandler();
+    initShowMigrationDrawerHandler();
     initStrictKillSwitchHandler();
 }
 
@@ -363,10 +368,29 @@ void CoreController::initPrepareConfigHandler()
     });
 }
 
+void CoreController::initImportPremiumV2VpnKeyHandler()
+{
+    connect(m_apiPremV1MigrationController.get(), &ApiPremV1MigrationController::importPremiumV2VpnKey, this, [this](const QString &vpnKey) {
+        m_importController->extractConfigFromData(vpnKey);
+        m_importController->importConfig();
+
+        emit m_apiPremV1MigrationController->migrationFinished();
+    });
+}
+
+void CoreController::initShowMigrationDrawerHandler()
+{
+    QTimer::singleShot(1000, this, [this]() {
+        if (m_apiPremV1MigrationController->isPremV1MigrationReminderActive() && m_apiPremV1MigrationController->hasConfigsToMigration()) {
+            m_apiPremV1MigrationController->showMigrationDrawer();
+        }
+    });
+}
+
 void CoreController::initStrictKillSwitchHandler()
 {
-    connect(m_settingsController.get(), &SettingsController::strictKillSwitchEnabledChanged, 
-            m_vpnConnection.get(), &VpnConnection::onKillSwitchModeChanged);
+    connect(m_settingsController.get(), &SettingsController::strictKillSwitchEnabledChanged, m_vpnConnection.get(),
+            &VpnConnection::onKillSwitchModeChanged);
 }
 
 QSharedPointer<PageController> CoreController::pageController() const

client/core/controllers/coreController.h

@@ -7,6 +7,7 @@
 
 #include "ui/controllers/api/apiConfigsController.h"
 #include "ui/controllers/api/apiSettingsController.h"
+#include "ui/controllers/api/apiPremV1MigrationController.h"
 #include "ui/controllers/appSplitTunnelingController.h"
 #include "ui/controllers/allowedDnsController.h"
 #include "ui/controllers/connectionController.h"
@@ -82,6 +83,8 @@ private:
     void initAutoConnectHandler();
     void initAmneziaDnsToggledHandler();
     void initPrepareConfigHandler();
+    void initImportPremiumV2VpnKeyHandler();
+    void initShowMigrationDrawerHandler();
     void initStrictKillSwitchHandler();
 
     QQmlApplicationEngine *m_engine {}; // TODO use parent child system here?
@@ -109,6 +112,7 @@ private:
 
     QScopedPointer<ApiSettingsController> m_apiSettingsController;
     QScopedPointer<ApiConfigsController> m_apiConfigsController;
+    QScopedPointer<ApiPremV1MigrationController> m_apiPremV1MigrationController;
 
     QSharedPointer<ContainersModel> m_containersModel;
     QSharedPointer<ContainersModel> m_defaultServerContainersModel;

client/core/defs.h

@@ -117,6 +117,7 @@ namespace amnezia
         ApiServicesMissingError = 1107,
         ApiConfigLimitError = 1108,
         ApiNotFoundError = 1109,
+        ApiMigrationError = 1110,
 
         // QFile errors
         OpenError = 1200,

client/core/errorstrings.cpp

@@ -74,6 +74,7 @@ QString errorString(ErrorCode code) {
     case (ErrorCode::ApiServicesMissingError): errorMessage = QObject::tr("Missing list of available services"); break;
     case (ErrorCode::ApiConfigLimitError): errorMessage = QObject::tr("The limit of allowed configurations per subscription has been exceeded"); break;
     case (ErrorCode::ApiNotFoundError): errorMessage = QObject::tr("Error when retrieving configuration from API"); break;
+    case (ErrorCode::ApiMigrationError): errorMessage = QObject::tr("A migration error occurred. Please contact our technical support"); break;
 
     // QFile errors
     case(ErrorCode::OpenError): errorMessage = QObject::tr("QFile error: The file could not be opened"); break;