feat: add dynamic local proxy lifecycle in depence of settings

client/core/controllers/coreController.cpp

@@ -1,6 +1,7 @@
 #include "coreController.h"
 
 #include <QDirIterator>
+#include <QDebug>
 #include <QTranslator>
 #include <QStandardPaths>
 
@@ -36,13 +37,39 @@ CoreController::CoreController(const QSharedPointer<VpnConnection> &vpnConnectio
 void CoreController::initLocalProxy()
 {
 #if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
-    // Logger and proxy initialization
-    ProxyLogger::getInstance().init(QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + "/logs/proxy.log");
-    ProxyLogger::getInstance().setLogLevel(ProxyLogger::LogLevel::Info);
-
     m_proxyServer.reset(new ProxyServer(this));
-    const quint16 proxyPort = 49490;
+
-    m_proxyServer->start(proxyPort);
+    auto syncLocalProxy = [this]() {
+        if (!m_proxyServer) {
+            return;
+        }
+
+        const bool httpEnabled = m_settings->isLocalProxyHttpEnabled();
+        const quint16 port = m_settings->localProxyPort();
+
+        if (!httpEnabled) {
+            qInfo() << "Local proxy: HTTP API disabled";
+            m_proxyServer->stop();
+            return;
+        }
+
+        if (port < 1024) {
+            qWarning() << "Local proxy: invalid HTTP API port" << port << ", stopping server";
+            m_proxyServer->stop();
+            return;
+        }
+
+        if (!m_proxyServer->start(port)) {
+            qWarning() << "Local proxy: failed to start on port" << port;
+            return;
+        }
+
+        qInfo() << "Local proxy: running on 127.0.0.1:" << port;
+    };
+
+    syncLocalProxy();
+
+    connect(m_settings.get(), &Settings::localProxySettingsChanged, this, syncLocalProxy);
 #endif
 }
 

client/core/controllers/coreController.h

@@ -52,7 +52,6 @@
 
 #if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
 #include "core/local-proxy/proxyserver.h"
-#include "core/local-proxy/proxylogger.h"
 #include "ui/notificationhandler.h"
 #endif
 

client/core/local-proxy/proxyserver.cpp

@@ -5,11 +5,19 @@
 #include <QDateTime>
 #include <QDir>
 #include <QFileInfo>
+#include <QDebug>
+#include <QStandardPaths>
+
+#include "proxylogger.h"
 
 ProxyServer::ProxyServer(QObject *parent)
     : QObject(parent)
     , m_service(new ProxyService(this))
 {
+    const QString logDir = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + "/logs";
+    ProxyLogger::getInstance().init(logDir + "/proxy.log");
+    ProxyLogger::getInstance().setLogLevel(ProxyLogger::LogLevel::Info);
+
     connect(m_service.data(), &ProxyService::configsChanged, this, &ProxyServer::startXrayProcess);
 }
 
@@ -20,10 +28,23 @@ ProxyServer::~ProxyServer()
 
 bool ProxyServer::start(quint16 port)
 {
+    if (m_isRunning) {
+        if (m_currentPort == port) {
+            qInfo() << "Local proxy: already running on port" << port;
+            return true;
+        }
+
+        qInfo() << "Local proxy: restarting on new port" << port;
+        stop();
+    }
+
     m_api.reset(new HttpApi(m_service.toWeakRef()));
-    bool apiStarted = m_api->start(port);
+    const bool apiStarted = m_api->start(port);
     if (!apiStarted) {
         qWarning() << "Local proxy: port is busy:" << port;
+        m_api.reset();
+        m_isRunning = false;
+        m_currentPort = 0;
         return false;
     }
 
@@ -35,6 +56,9 @@ bool ProxyServer::start(quint16 port)
         qDebug() << "No config found, Xray will not start automatically";
     }
 
+    m_isRunning = true;
+    m_currentPort = port;
+
     return true;
 }
 
@@ -43,7 +67,10 @@ void ProxyServer::stop()
     stopXrayProcess();
     if (m_api) {
         m_api->stop();
+        m_api.reset();
     }
+    m_isRunning = false;
+    m_currentPort = 0;
 }
 
 bool ProxyServer::startXrayProcess()

client/core/local-proxy/proxyserver.h

@@ -23,4 +23,6 @@ private:
 
     QScopedPointer<HttpApi> m_api;
     QSharedPointer<ProxyService> m_service;
+    bool m_isRunning {false};
+    quint16 m_currentPort {0};
 };

client/ui/qml/Pages2/PageSettingsLocalProxy.qml

@@ -114,9 +114,13 @@ PageType {
                             PageController.showNotificationMessage(qsTr("Failed to enable local proxy. Check the port (%1-%2).")
                                                                    .arg(root.localProxyPortMin)
                                                                    .arg(root.localProxyPortMax))
+                            localProxySwitch.syncState()
+                            return
                         }
+                        localProxySwitch.syncState()
                     } else {
                         SettingsController.disableLocalProxy()
+                        localProxySwitch.syncState()
                     }
                 }
             }
@@ -192,16 +196,5 @@ PageType {
             }
         }
     }
-
-    Connections {
-        target: ServersModel
-
-        function onProcessedServerChanged() {
-            localProxySwitch.syncState()
-            if (!portField.textField.activeFocus) {
-                portField.syncPortValue()
-            }
-        }
-    }
 }