fix: added displaying vpn_key field added in older version of the app (#1873)

* fix(api_key): added displaying vpn_key field added in older version of the app

* revert changes

* fix: implemented generation of api key text for PremiumV2

* fix: deleted unnecessary code

* saving apikey text when generating

* added method for vpn key export, fixed wrong saving file

client/core/api/apiUtils.cpp

@@ -162,3 +162,51 @@ QString apiUtils::getPremiumV1VpnKey(const QJsonObject &serverConfigObject)
 
     return QString("vpn://%1").arg(QString(signedData.toBase64(QByteArray::Base64UrlEncoding)));
 }
+
+QString apiUtils::getPremiumV2VpnKey(const QJsonObject &serverConfigObject)
+{
+    if (apiUtils::getConfigType(serverConfigObject) != apiDefs::ConfigType::AmneziaPremiumV2) {
+        return {};
+    }
+
+    QString vpnKeyText = "";
+
+    auto apiConfig = serverConfigObject.value(apiDefs::key::apiConfig).toObject();
+    auto authData = serverConfigObject.value(QLatin1String("auth_data")).toObject();
+
+    const QString name = serverConfigObject.value(apiDefs::key::name).toString();
+    const QString description = serverConfigObject.value(apiDefs::key::description).toString();
+    const double configVersion = serverConfigObject.value(apiDefs::key::configVersion).toDouble();
+
+    const QString serviceType = apiConfig.value(apiDefs::key::serviceType).toString();
+    const QString serviceProtocol = apiConfig.value(QLatin1String("service_protocol")).toString();
+    const QString userCountryCode = apiConfig.value(QLatin1String("user_country_code")).toString();
+
+    const QString apiKey = authData.value(apiDefs::key::apiKey).toString();
+
+    QString vpnKeyStr = "{";
+    vpnKeyStr += "\"" + QString(apiDefs::key::name) + "\": \"" + name + "\", ";
+    vpnKeyStr += "\"" + QString(apiDefs::key::description) + "\": \"" + description + "\", ";
+    vpnKeyStr += "\"" + QString(apiDefs::key::configVersion) + "\": " + QString::number(static_cast<int>(configVersion)) + ", ";
+
+    vpnKeyStr += "\"" + QString(apiDefs::key::apiConfig) + "\": {";
+    vpnKeyStr += "\"" + QString(apiDefs::key::serviceType) + "\": \"" + serviceType + "\", ";
+    vpnKeyStr += "\"service_protocol\": \"" + serviceProtocol + "\", ";
+    vpnKeyStr += "\"user_country_code\": \"" + userCountryCode + "\"";
+    vpnKeyStr += "}, ";
+
+    vpnKeyStr += "\"auth_data\": {";
+    vpnKeyStr += "\"" + QString(apiDefs::key::apiKey) + "\": \"" + apiKey + "\"";
+    vpnKeyStr += "}";
+
+    vpnKeyStr += "}";
+
+    QByteArray vpnKeyCompressed = escapeUnicode(vpnKeyStr).toUtf8();
+    vpnKeyCompressed = qCompress(vpnKeyCompressed, 6);
+    vpnKeyCompressed = vpnKeyCompressed.mid(4);
+
+    QByteArray signedData = AMNEZIA_CONFIG_SIGNATURE + vpnKeyCompressed;
+    vpnKeyText = QString("vpn://%1").arg(QString(signedData.toBase64(QByteArray::Base64UrlEncoding)));
+
+    return vpnKeyText;
+}

client/core/api/apiUtils.h

@@ -23,6 +23,7 @@ namespace apiUtils
                                                const QByteArray &responseBody);
 
     QString getPremiumV1VpnKey(const QJsonObject &serverConfigObject);
+    QString getPremiumV2VpnKey(const QJsonObject &serverConfigObject);
 }
 
 #endif // APIUTILS_H

client/ui/controllers/api/apiConfigsController.cpp

@@ -251,6 +251,23 @@ ApiConfigsController::ApiConfigsController(const QSharedPointer<ServersModel> &s
 {
 }
 
+bool ApiConfigsController::exportVpnKey(const QString &fileName)
+{
+    if (fileName.isEmpty()) {
+        emit errorOccurred(ErrorCode::PermissionsError);
+        return false;
+    }
+
+    prepareVpnKeyExport();
+    if (m_vpnKey.isEmpty()) {
+        emit errorOccurred(ErrorCode::ApiConfigEmptyError);
+        return false;
+    }
+
+    SystemController::saveFile(fileName, m_vpnKey);
+    return true;
+}
+
 bool ApiConfigsController::exportNativeConfig(const QString &serverCountryCode, const QString &fileName)
 {
     if (fileName.isEmpty()) {
@@ -332,6 +349,13 @@ void ApiConfigsController::prepareVpnKeyExport()
     auto apiConfigObject = serverConfigObject.value(configKey::apiConfig).toObject();
 
     auto vpnKey = apiConfigObject.value(apiDefs::key::vpnKey).toString();
+    if (vpnKey.isEmpty()) {
+        vpnKey = apiUtils::getPremiumV2VpnKey(serverConfigObject);
+        apiConfigObject.insert(apiDefs::key::vpnKey, vpnKey);
+        serverConfigObject.insert(configKey::apiConfig, apiConfigObject);
+        m_serversModel->editServer(serverConfigObject, m_serversModel->getProcessedServerIndex());
+    }
+
     m_vpnKey = vpnKey;
 
     vpnKey.replace("vpn://", "");

client/ui/controllers/api/apiConfigsController.h

@@ -21,7 +21,7 @@ public:
 public slots:
     bool exportNativeConfig(const QString &serverCountryCode, const QString &fileName);
     bool revokeNativeConfig(const QString &serverCountryCode);
-    // bool exportVpnKey(const QString &fileName);
+    bool exportVpnKey(const QString &fileName);
     void prepareVpnKeyExport();
     void copyVpnKeyToClipboard();
 

client/ui/qml/Pages2/PageSettingsApiSubscriptionKey.qml

@@ -119,7 +119,7 @@ PageType {
 
                     if (fileName !== "") {
                         PageController.showBusyIndicator(true)
-                        ExportController.exportConfig(fileName)
+                        ApiConfigsController.exportVpnKey(fileName)
                         PageController.showBusyIndicator(false)
                     }
                 }