feat: enhance local proxy error handling and configuration management

- Added signal for local proxy start failure to Settings.
- Updated CoreController to emit failure signals with descriptive messages when local proxy fails to start.
- Refactored XrayController to accept JSON configuration directly, improving configuration handling.
- Removed unused config file loading logic to streamline the XrayController's functionality.

client/core/local-proxy/proxyservice.cpp

@@ -44,24 +44,14 @@ bool ProxyService::startXray()
 
     QString error;
     const auto configData = m_configManager->buildConfig(error);
-    qDebug() << "configData:" << configData.value().serializedConfig;
-    qDebug() << "configData:" << configData.value().parsedConfig;
     if (!configData) {
         logConfigError(error);
         return false;
     }
 
-    QString configPath;
-    if (!m_configManager->writeTempConfig(configData->serializedConfig, configPath, error)) {
-        qDebug() << "configPath:" << configPath;
-        logConfigError(error);
-        return false;
-    }
-    qDebug() << "configPath:" << configPath;
-
     m_cachedConfig = configData->parsedConfig;
 
-    const bool success = m_xrayController->start(configPath);
+    const bool success = m_xrayController->start(configData->serializedConfig);
     if (success) {
         ProxyLogger::getInstance().info("Xray started successfully");
         emit xrayStatusChanged(true);
@@ -78,7 +68,6 @@ bool ProxyService::stopXray()
     const bool stopped = m_xrayController->stop();
     if (stopped) {
         ProxyLogger::getInstance().info("Xray stopped");
-        m_configManager->removeTempConfig();
         emit xrayStatusChanged(false);
         return true;
     }

client/core/local-proxy/xraycontroller.cpp

@@ -3,8 +3,6 @@
 #include "proxylogger.h"
 #include "core/ipcclient.h"
 
-#include <QFile>
-
 namespace {
 const QString kIpcUnavailableError = QStringLiteral("Failed to communicate with IPC service");
 }
@@ -20,25 +18,25 @@ XrayController::~XrayController()
     stop();
 }
 
-bool XrayController::start(const QString &configPath)
+bool XrayController::start(const QString &configJson)
 {
-
     if (m_isRunning) {
         ProxyLogger::getInstance().info("Xray is already running");
         return true;
     }
-    
+
     ProxyLogger::getInstance().info("Request to start Xray via IPC");
 
     m_lastError.clear();
 
-    QString configContent;
-    if (!loadConfigFile(configPath, configContent)) {
+    if (configJson.trimmed().isEmpty()) {
+        m_lastError = QStringLiteral("Config content is empty");
+        ProxyLogger::getInstance().error(m_lastError);
         return false;
     }
 
     const bool ipcResult = IpcClient::withInterface([&](QSharedPointer<IpcInterfaceReplica> iface) {
-        iface->xrayStart(configContent);
+        iface->xrayStart(configJson);
         return true;
     }, []() {
         return false;
@@ -89,39 +87,4 @@ qint64 XrayController::getProcessId() const
 QString XrayController::getError() const
 {
     return m_lastError;
-}
-
-bool XrayController::loadConfigFile(const QString &configPath, QString &configContent)
-{
-    if (configPath.isEmpty()) {
-        m_lastError = "Config path is empty";
-        ProxyLogger::getInstance().error(m_lastError);
-        return false;
-    }
-
-    QFile configFile(configPath);
-    if (!configFile.exists()) {
-        m_lastError = QString("Config file not found at: %1").arg(configPath);
-        ProxyLogger::getInstance().error(m_lastError);
-        return false;
-    }
-
-    if (!configFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
-        m_lastError = QString("Failed to open config file: %1").arg(configFile.errorString());
-        ProxyLogger::getInstance().error(m_lastError);
-        return false;
-    }
-
-    QByteArray data = configFile.readAll();
-    configFile.close();
-
-    if (data.isEmpty()) {
-        m_lastError = QString("Config file is empty: %1").arg(configPath);
-        ProxyLogger::getInstance().error(m_lastError);
-        return false;
-    }
-
-    configContent = QString::fromUtf8(data);
-    ProxyLogger::getInstance().debug(QString("Loaded Xray config from %1").arg(configPath));
-    return true;
 }

client/core/local-proxy/xraycontroller.h

@@ -10,15 +10,13 @@ public:
     explicit XrayController(QObject* parent = nullptr);
     ~XrayController();
 
-    bool start(const QString& configPath);
+    bool start(const QString& configJson);
     bool stop();
     bool isXrayRunning() const;
     qint64 getProcessId() const;
     QString getError() const;
 
 private:
-    bool loadConfigFile(const QString& configPath, QString& configContent);
-
     bool m_isRunning {false};
     QString m_lastError;
 };