bugfix: fixed qml warnings when loading user list on PageShare

replaced QSingleApplication with QLocalServer

CMakeLists.txt

@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.25.0 FATAL_ERROR)
 
 set(PROJECT AmneziaVPN)
 
-project(${PROJECT} VERSION 4.8.1.0
+project(${PROJECT} VERSION 4.8.1.9
         DESCRIPTION "AmneziaVPN"
         HOMEPAGE_URL "https://amnezia.org/"
 )
@@ -11,7 +11,7 @@ string(TIMESTAMP CURRENT_DATE "%Y-%m-%d")
 set(RELEASE_DATE "${CURRENT_DATE}")
 
 set(APP_MAJOR_VERSION ${CMAKE_PROJECT_VERSION_MAJOR}.${CMAKE_PROJECT_VERSION_MINOR}.${CMAKE_PROJECT_VERSION_PATCH})
-set(APP_ANDROID_VERSION_CODE 62)
+set(APP_ANDROID_VERSION_CODE 65)
 
 if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
     set(MZ_PLATFORM_NAME "linux")

client/3rd/SingleApplication/singleapplication.cmake

@@ -1,25 +0,0 @@
-include_directories(${CMAKE_CURRENT_LIST_DIR})
-
-find_package(Qt6 REQUIRED COMPONENTS 
-    Core Network
-)
-set(LIBS ${LIBS} Qt6::Core Qt6::Network)
-
-
-set(HEADERS ${HEADERS}
-    ${CMAKE_CURRENT_LIST_DIR}/singleapplication.h 
-    ${CMAKE_CURRENT_LIST_DIR}/singleapplication_p.h
-)
-
-set(SOURCES ${SOURCES}
-    ${CMAKE_CURRENT_LIST_DIR}/singleapplication.cpp 
-    ${CMAKE_CURRENT_LIST_DIR}/singleapplication_p.cpp
-)
-
-if(WIN32)
-    if(MSVC)
-        set(LIBS ${LIBS} Advapi32.lib)
-    elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-        set(LIBS ${LIBS} advapi32)
-    endif()    
-endif()

client/3rd/SingleApplication/singleapplication.cpp

@@ -1,274 +0,0 @@
-// The MIT License (MIT)
-//
-// Copyright (c) Itay Grudev 2015 - 2020
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-#include <QtCore/QElapsedTimer>
-#include <QtCore/QByteArray>
-#include <QtCore/QSharedMemory>
-
-#include "singleapplication.h"
-#include "singleapplication_p.h"
-
-/**
- * @brief Constructor. Checks and fires up LocalServer or closes the program
- * if another instance already exists
- * @param argc
- * @param argv
- * @param allowSecondary Whether to enable secondary instance support
- * @param options Optional flags to toggle specific behaviour
- * @param timeout Maximum time blocking functions are allowed during app load
- */
-SingleApplication::SingleApplication( int &argc, char *argv[], bool allowSecondary, Options options, int timeout, const QString &userData )
-    : app_t( argc, argv ), d_ptr( new SingleApplicationPrivate( this ) )
-{
-    Q_D( SingleApplication );
-
-#if defined(Q_OS_ANDROID) || defined(Q_OS_IOS)
-    // On Android and iOS since the library is not supported fallback to
-    // standard QApplication behaviour by simply returning at this point.
-    qWarning() << "SingleApplication is not supported on Android and iOS systems.";
-    return;
-#endif
-
-    // Store the current mode of the program
-    d->options = options;
-
-    // Add any unique user data
-    if ( ! userData.isEmpty() )
-        d->addAppData( userData );
-
-    // Generating an application ID used for identifying the shared memory
-    // block and QLocalServer
-    d->genBlockServerName();
-
-    // To mitigate QSharedMemory issues with large amount of processes
-    // attempting to attach at the same time
-    SingleApplicationPrivate::randomSleep();
-
-#ifdef Q_OS_UNIX
-    // By explicitly attaching it and then deleting it we make sure that the
-    // memory is deleted even after the process has crashed on Unix.
-    d->memory = new QSharedMemory( d->blockServerName );
-    d->memory->attach();
-    delete d->memory;
-#endif
-    // Guarantee thread safe behaviour with a shared memory block.
-    d->memory = new QSharedMemory( d->blockServerName );
-
-    // Create a shared memory block
-    if( d->memory->create( sizeof( InstancesInfo ) )){
-        // Initialize the shared memory block
-        if( ! d->memory->lock() ){
-          qCritical() << "SingleApplication: Unable to lock memory block after create.";
-          abortSafely();
-        }
-        d->initializeMemoryBlock();
-    } else {
-        if( d->memory->error() == QSharedMemory::AlreadyExists ){
-          // Attempt to attach to the memory segment
-          if( ! d->memory->attach() ){
-              qCritical() << "SingleApplication: Unable to attach to shared memory block.";
-              abortSafely();
-          }
-          if( ! d->memory->lock() ){
-            qCritical() << "SingleApplication: Unable to lock memory block after attach.";
-            abortSafely();
-          }
-        } else {
-          qCritical() << "SingleApplication: Unable to create block.";
-          abortSafely();
-        }
-    }
-
-    auto *inst = static_cast<InstancesInfo*>( d->memory->data() );
-    QElapsedTimer time;
-    time.start();
-
-    // Make sure the shared memory block is initialised and in consistent state
-    while( true ){
-      // If the shared memory block's checksum is valid continue
-      if( d->blockChecksum() == inst->checksum ) break;
-
-      // If more than 5s have elapsed, assume the primary instance crashed and
-      // assume it's position
-      if( time.elapsed() > 5000 ){
-          qWarning() << "SingleApplication: Shared memory block has been in an inconsistent state from more than 5s. Assuming primary instance failure.";
-          d->initializeMemoryBlock();
-      }
-
-      // Otherwise wait for a random period and try again. The random sleep here
-      // limits the probability of a collision between two racing apps and
-      // allows the app to initialise faster
-      if( ! d->memory->unlock() ){
-        qDebug() << "SingleApplication: Unable to unlock memory for random wait.";
-        qDebug() << d->memory->errorString();
-      }
-      SingleApplicationPrivate::randomSleep();
-      if( ! d->memory->lock() ){
-        qCritical() << "SingleApplication: Unable to lock memory after random wait.";
-        abortSafely();
-      }
-    }
-
-    if( inst->primary == false ){
-        d->startPrimary();
-        if( ! d->memory->unlock() ){
-          qDebug() << "SingleApplication: Unable to unlock memory after primary start.";
-          qDebug() << d->memory->errorString();
-        }
-        return;
-    }
-
-    // Check if another instance can be started
-    if( allowSecondary ){
-        d->startSecondary();
-        if( d->options & Mode::SecondaryNotification ){
-            d->connectToPrimary( timeout, SingleApplicationPrivate::SecondaryInstance );
-        }
-        if( ! d->memory->unlock() ){
-          qDebug() << "SingleApplication: Unable to unlock memory after secondary start.";
-          qDebug() << d->memory->errorString();
-        }
-        return;
-    }
-
-    if( ! d->memory->unlock() ){
-      qDebug() << "SingleApplication: Unable to unlock memory at end of execution.";
-      qDebug() << d->memory->errorString();
-    }
-
-    d->connectToPrimary( timeout, SingleApplicationPrivate::NewInstance );
-
-    delete d;
-
-    ::exit( EXIT_SUCCESS );
-}
-
-SingleApplication::~SingleApplication()
-{
-    Q_D( SingleApplication );
-    delete d;
-}
-
-/**
- * Checks if the current application instance is primary.
- * @return Returns true if the instance is primary, false otherwise.
- */
-bool SingleApplication::isPrimary() const
-{
-    Q_D( const SingleApplication );
-    return d->server != nullptr;
-}
-
-/**
- * Checks if the current application instance is secondary.
- * @return Returns true if the instance is secondary, false otherwise.
- */
-bool SingleApplication::isSecondary() const
-{
-    Q_D( const SingleApplication );
-    return d->server == nullptr;
-}
-
-/**
- * Allows you to identify an instance by returning unique consecutive instance
- * ids. It is reset when the first (primary) instance of your app starts and
- * only incremented afterwards.
- * @return Returns a unique instance id.
- */
-quint32 SingleApplication::instanceId() const
-{
-    Q_D( const SingleApplication );
-    return d->instanceNumber;
-}
-
-/**
- * Returns the OS PID (Process Identifier) of the process running the primary
- * instance. Especially useful when SingleApplication is coupled with OS.
- * specific APIs.
- * @return Returns the primary instance PID.
- */
-qint64 SingleApplication::primaryPid() const
-{
-    Q_D( const SingleApplication );
-    return d->primaryPid();
-}
-
-/**
- * Returns the username the primary instance is running as.
- * @return Returns the username the primary instance is running as.
- */
-QString SingleApplication::primaryUser() const
-{
-    Q_D( const SingleApplication );
-    return d->primaryUser();
-}
-
-/**
- * Returns the username the current instance is running as.
- * @return Returns the username the current instance is running as.
- */
-QString SingleApplication::currentUser() const
-{
-    return SingleApplicationPrivate::getUsername();
-}
-
-/**
- * Sends message to the Primary Instance.
- * @param message The message to send.
- * @param timeout the maximum timeout in milliseconds for blocking functions.
- * @return true if the message was sent successfuly, false otherwise.
- */
-bool SingleApplication::sendMessage( const QByteArray &message, int timeout )
-{
-    Q_D( SingleApplication );
-
-    // Nobody to connect to
-    if( isPrimary() ) return false;
-
-    // Make sure the socket is connected
-    if( ! d->connectToPrimary( timeout,  SingleApplicationPrivate::Reconnect ) )
-      return false;
-
-    d->socket->write( message );
-    bool dataWritten = d->socket->waitForBytesWritten( timeout );
-    d->socket->flush();
-    return dataWritten;
-}
-
-/**
- * Cleans up the shared memory block and exits with a failure.
- * This function halts program execution.
- */
-void SingleApplication::abortSafely()
-{
-    Q_D( SingleApplication );
-
-    qCritical() << "SingleApplication: " << d->memory->error() << d->memory->errorString();
-    delete d;
-    ::exit( EXIT_FAILURE );
-}
-
-QStringList SingleApplication::userData() const
-{
-    Q_D( const SingleApplication );
-    return d->appData();
-}

client/3rd/SingleApplication/singleapplication.h

@@ -1,154 +0,0 @@
-// The MIT License (MIT)
-//
-// Copyright (c) Itay Grudev 2015 - 2018
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-#ifndef SINGLE_APPLICATION_H
-#define SINGLE_APPLICATION_H
-
-#include <QtCore/QtGlobal>
-#include <QtNetwork/QLocalSocket>
-
-#ifndef QAPPLICATION_CLASS
-  #define QAPPLICATION_CLASS QApplication
-#endif
-
-#include QT_STRINGIFY(QAPPLICATION_CLASS)
-
-class SingleApplicationPrivate;
-
-/**
- * @brief The SingleApplication class handles multiple instances of the same
- * Application
- * @see QCoreApplication
- */
-class SingleApplication : public QAPPLICATION_CLASS
-{
-    Q_OBJECT
-
-    using app_t = QAPPLICATION_CLASS;
-
-public:
-    /**
-     * @brief Mode of operation of SingleApplication.
-     * Whether the block should be user-wide or system-wide and whether the
-     * primary instance should be notified when a secondary instance had been
-     * started.
-     * @note Operating system can restrict the shared memory blocks to the same
-     * user, in which case the User/System modes will have no effect and the
-     * block will be user wide.
-     * @enum
-     */
-    enum Mode {
-        User                    = 1 << 0,
-        System                  = 1 << 1,
-        SecondaryNotification   = 1 << 2,
-        ExcludeAppVersion       = 1 << 3,
-        ExcludeAppPath          = 1 << 4
-    };
-    Q_DECLARE_FLAGS(Options, Mode)
-
-    /**
-     * @brief Intitializes a SingleApplication instance with argc command line
-     * arguments in argv
-     * @arg {int &} argc - Number of arguments in argv
-     * @arg {const char *[]} argv - Supplied command line arguments
-     * @arg {bool} allowSecondary - Whether to start the instance as secondary
-     * if there is already a primary instance.
-     * @arg {Mode} mode - Whether for the SingleApplication block to be applied
-     * User wide or System wide.
-     * @arg {int} timeout - Timeout to wait in milliseconds.
-     * @note argc and argv may be changed as Qt removes arguments that it
-     * recognizes
-     * @note Mode::SecondaryNotification only works if set on both the primary
-     * instance and the secondary instance.
-     * @note The timeout is just a hint for the maximum time of blocking
-     * operations. It does not guarantee that the SingleApplication
-     * initialisation will be completed in given time, though is a good hint.
-     * Usually 4*timeout would be the worst case (fail) scenario.
-     * @see See the corresponding QAPPLICATION_CLASS constructor for reference
-     */
-    explicit SingleApplication( int &argc, char *argv[], bool allowSecondary = false, Options options = Mode::User, int timeout = 1000, const QString &userData = {} );
-    ~SingleApplication() override;
-
-    /**
-     * @brief Returns if the instance is the primary instance
-     * @returns {bool}
-     */
-    bool isPrimary() const;
-
-    /**
-     * @brief Returns if the instance is a secondary instance
-     * @returns {bool}
-     */
-    bool isSecondary() const;
-
-    /**
-     * @brief Returns a unique identifier for the current instance
-     * @returns {qint32}
-     */
-    quint32 instanceId() const;
-
-    /**
-     * @brief Returns the process ID (PID) of the primary instance
-     * @returns {qint64}
-     */
-    qint64 primaryPid() const;
-
-    /**
-     * @brief Returns the username of the user running the primary instance
-     * @returns {QString}
-     */
-    QString primaryUser() const;
-
-    /**
-     * @brief Returns the username of the current user
-     * @returns {QString}
-     */
-    QString currentUser() const;
-
-    /**
-     * @brief Sends a message to the primary instance. Returns true on success.
-     * @param {int} timeout - Timeout for connecting
-     * @returns {bool}
-     * @note sendMessage() will return false if invoked from the primary
-     * instance.
-     */
-    bool sendMessage( const QByteArray &message, int timeout = 100 );
-
-    /**
-     * @brief Get the set user data.
-     * @returns {QStringList}
-     */
-    QStringList userData() const;
-
-Q_SIGNALS:
-    void instanceStarted();
-    void receivedMessage( quint32 instanceId, QByteArray message );
-
-private:
-    SingleApplicationPrivate *d_ptr;
-    Q_DECLARE_PRIVATE(SingleApplication)
-    void abortSafely();
-};
-
-Q_DECLARE_OPERATORS_FOR_FLAGS(SingleApplication::Options)
-
-#endif // SINGLE_APPLICATION_H

client/3rd/SingleApplication/singleapplication.pri

@@ -1,15 +0,0 @@
-QT += core network
-CONFIG += c++11
-
-HEADERS +=  \
-    $$PWD/singleapplication.h \
-    $$PWD/singleapplication_p.h
-SOURCES += $$PWD/singleapplication.cpp \
-    $$PWD/singleapplication_p.cpp
-
-INCLUDEPATH += $$PWD
-
-win32 {
-    msvc:LIBS += Advapi32.lib
-    gcc:LIBS += -ladvapi32
-}

client/3rd/SingleApplication/singleapplication_p.cpp

@@ -1,486 +0,0 @@
-// The MIT License (MIT)
-//
-// Copyright (c) Itay Grudev 2015 - 2020
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-//
-//  W A R N I N G !!!
-//  -----------------
-//
-// This file is not part of the SingleApplication API. It is used purely as an
-// implementation detail. This header file may change from version to
-// version without notice, or may even be removed.
-//
-
-#include <cstdlib>
-#include <cstddef>
-
-#include <QtCore/QDir>
-#include <QtCore/QThread>
-#include <QtCore/QByteArray>
-#include <QtCore/QDataStream>
-#include <QtCore/QElapsedTimer>
-#include <QtCore/QCryptographicHash>
-#include <QtNetwork/QLocalServer>
-#include <QtNetwork/QLocalSocket>
-
-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
-#include <QtCore/QRandomGenerator>
-#else
-#include <QtCore/QDateTime>
-#endif
-
-#include "singleapplication.h"
-#include "singleapplication_p.h"
-
-#ifdef Q_OS_UNIX
-    #include <unistd.h>
-    #include <sys/types.h>
-    #include <pwd.h>
-#endif
-
-#ifdef Q_OS_WIN
-    #ifndef NOMINMAX
-        #define NOMINMAX 1
-    #endif
-    #include <windows.h>
-    #include <lmcons.h>
-#endif
-
-SingleApplicationPrivate::SingleApplicationPrivate( SingleApplication *q_ptr )
-    : q_ptr( q_ptr )
-{
-    server = nullptr;
-    socket = nullptr;
-    memory = nullptr;
-    instanceNumber = 0;
-}
-
-SingleApplicationPrivate::~SingleApplicationPrivate()
-{
-    if( socket != nullptr ){
-        socket->close();
-        delete socket;
-    }
-
-    if( memory != nullptr ){
-        memory->lock();
-        auto *inst = static_cast<InstancesInfo*>(memory->data());
-        if( server != nullptr ){
-            server->close();
-            delete server;
-            inst->primary = false;
-            inst->primaryPid = -1;
-            inst->primaryUser[0] =  '\0';
-            inst->checksum = blockChecksum();
-        }
-        memory->unlock();
-
-        delete memory;
-    }
-}
-
-QString SingleApplicationPrivate::getUsername()
-{
-#ifdef Q_OS_WIN
-      wchar_t username[UNLEN + 1];
-      // Specifies size of the buffer on input
-      DWORD usernameLength = UNLEN + 1;
-      if( GetUserNameW( username, &usernameLength ) )
-          return QString::fromWCharArray( username );
-#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
-      return QString::fromLocal8Bit( qgetenv( "USERNAME" ) );
-#else
-      return qEnvironmentVariable( "USERNAME" );
-#endif
-#endif
-#ifdef Q_OS_UNIX
-      QString username;
-      uid_t uid = geteuid();
-      struct passwd *pw = getpwuid( uid );
-      if( pw )
-          username = QString::fromLocal8Bit( pw->pw_name );
-      if ( username.isEmpty() ){
-#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
-          username = QString::fromLocal8Bit( qgetenv( "USER" ) );
-#else
-          username = qEnvironmentVariable( "USER" );
-#endif
-      }
-      return username;
-#endif
-}
-
-void SingleApplicationPrivate::genBlockServerName()
-{
-    QCryptographicHash appData( QCryptographicHash::Sha256 );
-    appData.addData( "SingleApplication", 17 );
-    appData.addData( SingleApplication::app_t::applicationName().toUtf8() );
-    appData.addData( SingleApplication::app_t::organizationName().toUtf8() );
-    appData.addData( SingleApplication::app_t::organizationDomain().toUtf8() );
-
-    if ( ! appDataList.isEmpty() )
-        appData.addData( appDataList.join( "" ).toUtf8() );
-
-    if( ! (options & SingleApplication::Mode::ExcludeAppVersion) ){
-        appData.addData( SingleApplication::app_t::applicationVersion().toUtf8() );
-    }
-
-    if( ! (options & SingleApplication::Mode::ExcludeAppPath) ){
-#ifdef Q_OS_WIN
-        appData.addData( SingleApplication::app_t::applicationFilePath().toLower().toUtf8() );
-#else
-        appData.addData( SingleApplication::app_t::applicationFilePath().toUtf8() );
-#endif
-    }
-
-    // User level block requires a user specific data in the hash
-    if( options & SingleApplication::Mode::User ){
-        appData.addData( getUsername().toUtf8() );
-    }
-
-    // Replace the backslash in RFC 2045 Base64 [a-zA-Z0-9+/=] to comply with
-    // server naming requirements.
-    blockServerName = appData.result().toBase64().replace("/", "_");
-}
-
-void SingleApplicationPrivate::initializeMemoryBlock() const
-{
-    auto *inst = static_cast<InstancesInfo*>( memory->data() );
-    inst->primary = false;
-    inst->secondary = 0;
-    inst->primaryPid = -1;
-    inst->primaryUser[0] =  '\0';
-    inst->checksum = blockChecksum();
-}
-
-void SingleApplicationPrivate::startPrimary()
-{
-    // Reset the number of connections
-    auto *inst = static_cast <InstancesInfo*>( memory->data() );
-
-    inst->primary = true;
-    inst->primaryPid = QCoreApplication::applicationPid();
-    qstrncpy( inst->primaryUser, getUsername().toUtf8().data(), sizeof(inst->primaryUser) );
-    inst->checksum = blockChecksum();
-    instanceNumber = 0;
-    // Successful creation means that no main process exists
-    // So we start a QLocalServer to listen for connections
-    QLocalServer::removeServer( blockServerName );
-    server = new QLocalServer();
-
-    // Restrict access to the socket according to the
-    // SingleApplication::Mode::User flag on User level or no restrictions
-    if( options & SingleApplication::Mode::User ){
-        server->setSocketOptions( QLocalServer::UserAccessOption );
-    } else {
-        server->setSocketOptions( QLocalServer::WorldAccessOption );
-    }
-
-    server->listen( blockServerName );
-    QObject::connect(
-        server,
-        &QLocalServer::newConnection,
-        this,
-        &SingleApplicationPrivate::slotConnectionEstablished
-    );
-}
-
-void SingleApplicationPrivate::startSecondary()
-{
-  auto *inst = static_cast <InstancesInfo*>( memory->data() );
-
-  inst->secondary += 1;
-  inst->checksum = blockChecksum();
-  instanceNumber = inst->secondary;
-}
-
-bool SingleApplicationPrivate::connectToPrimary( int msecs, ConnectionType connectionType )
-{
-    QElapsedTimer time;
-    time.start();
-
-    // Connect to the Local Server of the Primary Instance if not already
-    // connected.
-    if( socket == nullptr ){
-        socket = new QLocalSocket();
-    }
-
-    if( socket->state() == QLocalSocket::ConnectedState ) return true;
-
-    if( socket->state() != QLocalSocket::ConnectedState ){
-
-        while( true ){
-            randomSleep();
-
-          if( socket->state() != QLocalSocket::ConnectingState )
-            socket->connectToServer( blockServerName );
-
-          if( socket->state() == QLocalSocket::ConnectingState ){
-              socket->waitForConnected( static_cast<int>(msecs - time.elapsed()) );
-          }
-
-          // If connected break out of the loop
-          if( socket->state() == QLocalSocket::ConnectedState ) break;
-
-          // If elapsed time since start is longer than the method timeout return
-          if( time.elapsed() >= msecs ) return false;
-        }
-    }
-
-    // Initialisation message according to the SingleApplication protocol
-    QByteArray initMsg;
-    QDataStream writeStream(&initMsg, QIODevice::WriteOnly);
-
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
-    writeStream.setVersion(QDataStream::Qt_5_6);
-#endif
-
-    writeStream << blockServerName.toLatin1();
-    writeStream << static_cast<quint8>(connectionType);
-    writeStream << instanceNumber;
-#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
-    quint16 checksum = qChecksum(QByteArray(initMsg, static_cast<quint32>(initMsg.length())));
-#else
-    quint16 checksum = qChecksum(initMsg.constData(), static_cast<quint32>(initMsg.length()));
-#endif
-    writeStream << checksum;
-
-    // The header indicates the message length that follows
-    QByteArray header;
-    QDataStream headerStream(&header, QIODevice::WriteOnly);
-
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
-    headerStream.setVersion(QDataStream::Qt_5_6);
-#endif
-    headerStream << static_cast <quint64>( initMsg.length() );
-
-    socket->write( header );
-    socket->write( initMsg );
-    bool result = socket->waitForBytesWritten( static_cast<int>(msecs - time.elapsed()) );
-    socket->flush();
-    return result;
-}
-
-quint16 SingleApplicationPrivate::blockChecksum() const
-{
-#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
-    quint16 checksum = qChecksum(QByteArray(static_cast<const char*>(memory->constData()), offsetof(InstancesInfo, checksum)));
-#else
-    quint16 checksum = qChecksum(static_cast<const char*>(memory->constData()), offsetof(InstancesInfo, checksum));
-#endif
-    return checksum;
-}
-
-qint64 SingleApplicationPrivate::primaryPid() const
-{
-    qint64 pid;
-
-    memory->lock();
-    auto *inst = static_cast<InstancesInfo*>( memory->data() );
-    pid = inst->primaryPid;
-    memory->unlock();
-
-    return pid;
-}
-
-QString SingleApplicationPrivate::primaryUser() const
-{
-    QByteArray username;
-
-    memory->lock();
-    auto *inst = static_cast<InstancesInfo*>( memory->data() );
-    username = inst->primaryUser;
-    memory->unlock();
-
-    return QString::fromUtf8( username );
-}
-
-/**
- * @brief Executed when a connection has been made to the LocalServer
- */
-void SingleApplicationPrivate::slotConnectionEstablished()
-{
-    QLocalSocket *nextConnSocket = server->nextPendingConnection();
-    connectionMap.insert(nextConnSocket, ConnectionInfo());
-
-    QObject::connect(nextConnSocket, &QLocalSocket::aboutToClose,
-        [nextConnSocket, this](){
-            auto &info = connectionMap[nextConnSocket];
-            Q_EMIT this->slotClientConnectionClosed( nextConnSocket, info.instanceId );
-        }
-    );
-
-    QObject::connect(nextConnSocket, &QLocalSocket::disconnected, nextConnSocket, &QLocalSocket::deleteLater);
-
-    QObject::connect(nextConnSocket, &QLocalSocket::destroyed,
-        [nextConnSocket, this](){
-            connectionMap.remove(nextConnSocket);
-        }
-    );
-
-    QObject::connect(nextConnSocket, &QLocalSocket::readyRead,
-        [nextConnSocket, this](){
-            auto &info = connectionMap[nextConnSocket];
-            switch(info.stage){
-            case StageHeader:
-                readInitMessageHeader(nextConnSocket);
-                break;
-            case StageBody:
-                readInitMessageBody(nextConnSocket);
-                break;
-            case StageConnected:
-                Q_EMIT this->slotDataAvailable( nextConnSocket, info.instanceId );
-                break;
-            default:
-                break;
-            };
-        }
-    );
-}
-
-void SingleApplicationPrivate::readInitMessageHeader( QLocalSocket *sock )
-{
-    if (!connectionMap.contains( sock )){
-        return;
-    }
-
-    if( sock->bytesAvailable() < ( qint64 )sizeof( quint64 ) ){
-        return;
-    }
-
-    QDataStream headerStream( sock );
-
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
-    headerStream.setVersion( QDataStream::Qt_5_6 );
-#endif
-
-    // Read the header to know the message length
-    quint64 msgLen = 0;
-    headerStream >> msgLen;
-    ConnectionInfo &info = connectionMap[sock];
-    info.stage = StageBody;
-    info.msgLen = msgLen;
-
-    if ( sock->bytesAvailable() >= (qint64) msgLen ){
-        readInitMessageBody( sock );
-    }
-}
-
-void SingleApplicationPrivate::readInitMessageBody( QLocalSocket *sock )
-{
-    Q_Q(SingleApplication);
-
-    if (!connectionMap.contains( sock )){
-        return;
-    }
-
-    ConnectionInfo &info = connectionMap[sock];
-    if( sock->bytesAvailable() < ( qint64 )info.msgLen ){
-        return;
-    }
-
-    // Read the message body
-    QByteArray msgBytes = sock->read(info.msgLen);
-    QDataStream readStream(msgBytes);
-
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
-    readStream.setVersion( QDataStream::Qt_5_6 );
-#endif
-
-    // server name
-    QByteArray latin1Name;
-    readStream >> latin1Name;
-
-    // connection type
-    ConnectionType connectionType = InvalidConnection;
-    quint8 connTypeVal = InvalidConnection;
-    readStream >> connTypeVal;
-    connectionType = static_cast <ConnectionType>( connTypeVal );
-
-    // instance id
-    quint32 instanceId = 0;
-    readStream >> instanceId;
-
-    // checksum
-    quint16 msgChecksum = 0;
-    readStream >> msgChecksum;
-
-#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
-    const quint16 actualChecksum = qChecksum(QByteArray(msgBytes, static_cast<quint32>(msgBytes.length() - sizeof(quint16))));
-#else
-    const quint16 actualChecksum = qChecksum(msgBytes.constData(), static_cast<quint32>(msgBytes.length() - sizeof(quint16)));
-#endif
-
-    bool isValid = readStream.status() == QDataStream::Ok &&
-                   QLatin1String(latin1Name) == blockServerName &&
-                   msgChecksum == actualChecksum;
-
-    if( !isValid ){
-        sock->close();
-        return;
-    }
-
-    info.instanceId = instanceId;
-    info.stage = StageConnected;
-
-    if( connectionType == NewInstance ||
-        ( connectionType == SecondaryInstance &&
-          options & SingleApplication::Mode::SecondaryNotification ) )
-    {
-        Q_EMIT q->instanceStarted();
-    }
-
-    if (sock->bytesAvailable() > 0){
-        Q_EMIT this->slotDataAvailable( sock, instanceId );
-    }
-}
-
-void SingleApplicationPrivate::slotDataAvailable( QLocalSocket *dataSocket, quint32 instanceId )
-{
-    Q_Q(SingleApplication);
-    Q_EMIT q->receivedMessage( instanceId, dataSocket->readAll() );
-}
-
-void SingleApplicationPrivate::slotClientConnectionClosed( QLocalSocket *closedSocket, quint32 instanceId )
-{
-    if( closedSocket->bytesAvailable() > 0 )
-        Q_EMIT slotDataAvailable( closedSocket, instanceId  );
-}
-
-void SingleApplicationPrivate::randomSleep()
-{
-#if QT_VERSION >= QT_VERSION_CHECK( 5, 10, 0 )
-    QThread::msleep( QRandomGenerator::global()->bounded( 8u, 18u ));
-#else
-    qsrand( QDateTime::currentMSecsSinceEpoch() % std::numeric_limits<uint>::max() );
-    QThread::msleep( 8 + static_cast <unsigned long>( static_cast <float>( qrand() ) / RAND_MAX * 10 ));
-#endif
-}
-
-void SingleApplicationPrivate::addAppData(const QString &data)
-{
-    appDataList.push_back(data);
-}
-
-QStringList SingleApplicationPrivate::appData() const
-{
-    return appDataList;
-}

client/3rd/SingleApplication/singleapplication_p.h

@@ -1,104 +0,0 @@
-// The MIT License (MIT)
-//
-// Copyright (c) Itay Grudev 2015 - 2020
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-// THE SOFTWARE.
-
-//
-//  W A R N I N G !!!
-//  -----------------
-//
-// This file is not part of the SingleApplication API. It is used purely as an
-// implementation detail. This header file may change from version to
-// version without notice, or may even be removed.
-//
-
-#ifndef SINGLEAPPLICATION_P_H
-#define SINGLEAPPLICATION_P_H
-
-#include <QtCore/QSharedMemory>
-#include <QtNetwork/QLocalServer>
-#include <QtNetwork/QLocalSocket>
-#include "singleapplication.h"
-
-struct InstancesInfo {
-    bool primary;
-    quint32 secondary;
-    qint64 primaryPid;
-    char primaryUser[128];
-    quint16 checksum; // Must be the last field
-};
-
-struct ConnectionInfo {
-    qint64 msgLen = 0;
-    quint32 instanceId = 0;
-    quint8 stage = 0;
-};
-
-class SingleApplicationPrivate : public QObject {
-Q_OBJECT
-public:
-    enum ConnectionType : quint8 {
-        InvalidConnection = 0,
-        NewInstance = 1,
-        SecondaryInstance = 2,
-        Reconnect = 3
-    };
-    enum ConnectionStage : quint8 {
-        StageHeader = 0,
-        StageBody = 1,
-        StageConnected = 2,
-    };
-    Q_DECLARE_PUBLIC(SingleApplication)
-
-    SingleApplicationPrivate( SingleApplication *q_ptr );
-    ~SingleApplicationPrivate() override;
-
-    static QString getUsername();
-    void genBlockServerName();
-    void initializeMemoryBlock() const;
-    void startPrimary();
-    void startSecondary();
-    bool connectToPrimary( int msecs, ConnectionType connectionType );
-    quint16 blockChecksum() const;
-    qint64 primaryPid() const;
-    QString primaryUser() const;
-    void readInitMessageHeader(QLocalSocket *socket);
-    void readInitMessageBody(QLocalSocket *socket);
-    static void randomSleep();
-    void addAppData(const QString &data);
-    QStringList appData() const;
-
-    SingleApplication *q_ptr;
-    QSharedMemory *memory;
-    QLocalSocket *socket;
-    QLocalServer *server;
-    quint32 instanceNumber;
-    QString blockServerName;
-    SingleApplication::Options options;
-    QMap<QLocalSocket*, ConnectionInfo> connectionMap;
-    QStringList appDataList;
-
-public Q_SLOTS:
-    void slotConnectionEstablished();
-    void slotDataAvailable( QLocalSocket*, quint32 );
-    void slotClientConnectionClosed( QLocalSocket*, quint32 );
-};
-
-#endif // SINGLEAPPLICATION_P_H

client/amnezia_application.cpp

@@ -10,6 +10,8 @@
 #include <QTextDocument>
 #include <QTimer>
 #include <QTranslator>
+#include <QLocalSocket>
+#include <QLocalServer>
 
 #include "logger.h"
 #include "ui/models/installedAppsModel.h"
@@ -28,13 +30,7 @@
     #include <AmneziaVPN-Swift.h>
 #endif
 
-#if defined(Q_OS_ANDROID) || defined(Q_OS_IOS)
 AmneziaApplication::AmneziaApplication(int &argc, char *argv[]) : AMNEZIA_BASE_CLASS(argc, argv)
-#else
-AmneziaApplication::AmneziaApplication(int &argc, char *argv[], bool allowSecondary, SingleApplication::Options options, int timeout,
-                                       const QString &userData)
-    : SingleApplication(argc, argv, allowSecondary, options, timeout, userData)
-#endif
 {
     setQuitOnLastWindowClosed(false);
 
@@ -180,16 +176,6 @@ void AmneziaApplication::init()
     m_pageController->showOnStartup();
 #endif
 
-        // TODO - fix
-#if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
-    if (isPrimary()) {
-        QObject::connect(this, &SingleApplication::instanceStarted, m_pageController.get(), [this]() {
-            qDebug() << "Secondary instance started, showing this window instead";
-            emit m_pageController->raiseMainWindow();
-        });
-    }
-#endif
-
 // Android TextArea clipboard workaround
 // Text from TextArea always has "text/html" mime-type:
 // /qt/6.6.1/Src/qtdeclarative/src/quick/items/qquicktextcontrol.cpp:1865
@@ -294,6 +280,24 @@ bool AmneziaApplication::parseCommands()
     return true;
 }
 
+#if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
+void AmneziaApplication::startLocalServer() {
+    const QString serverName("AmneziaVPNInstance");
+    QLocalServer::removeServer(serverName);
+
+    QLocalServer* server = new QLocalServer(this);
+    server->listen(serverName);
+
+    QObject::connect(server, &QLocalServer::newConnection, this, [server, this]() {
+        if (server) {
+            QLocalSocket* clientConnection = server->nextPendingConnection();
+            clientConnection->deleteLater();
+        }
+        emit m_pageController->raiseMainWindow();
+    });
+}
+#endif
+
 QQmlApplicationEngine *AmneziaApplication::qmlEngine() const
 {
     return m_engine;

client/amnezia_application.h

@@ -53,22 +53,14 @@
 #if defined(Q_OS_ANDROID) || defined(Q_OS_IOS)
     #define AMNEZIA_BASE_CLASS QGuiApplication
 #else
-    #define AMNEZIA_BASE_CLASS SingleApplication
-    #define QAPPLICATION_CLASS QApplication
-    #include "singleapplication.h"
+    #define AMNEZIA_BASE_CLASS QApplication
 #endif
 
 class AmneziaApplication : public AMNEZIA_BASE_CLASS
 {
     Q_OBJECT
 public:
-#if defined(Q_OS_ANDROID) || defined(Q_OS_IOS)
     AmneziaApplication(int &argc, char *argv[]);
-#else
-    AmneziaApplication(int &argc, char *argv[], bool allowSecondary = false,
-                       SingleApplication::Options options = SingleApplication::User, int timeout = 1000,
-                       const QString &userData = {});
-#endif
     virtual ~AmneziaApplication();
 
     void init();
@@ -78,6 +70,10 @@ public:
     void updateTranslator(const QLocale &locale);
     bool parseCommands();
 
+#if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
+    void startLocalServer();
+#endif
+
     QQmlApplicationEngine *qmlEngine() const;
     QNetworkAccessManager *manager() { return m_nam; }
 

client/android/awg/src/main/kotlin/Awg.kt

@@ -1,28 +1,21 @@
 package org.amnezia.vpn.protocol.awg
 
 import org.amnezia.vpn.protocol.wireguard.Wireguard
-import org.amnezia.vpn.util.optStringOrNull
+import org.amnezia.vpn.protocol.wireguard.WireguardConfig
 import org.json.JSONObject
 
 class Awg : Wireguard() {
 
     override val ifName: String = "awg0"
 
-    override fun parseConfig(config: JSONObject): AwgConfig {
+    override fun parseConfig(config: JSONObject): WireguardConfig {
         val configData = config.getJSONObject("awg_config_data")
-        return AwgConfig.build {
+        return WireguardConfig.build {
+            setUseProtocolExtension(true)
+            configExtensionParameters(configData)
             configWireguard(config, configData)
             configSplitTunneling(config)
             configAppSplitTunneling(config)
-            configData.optStringOrNull("Jc")?.let { setJc(it.toInt()) }
-            configData.optStringOrNull("Jmin")?.let { setJmin(it.toInt()) }
-            configData.optStringOrNull("Jmax")?.let { setJmax(it.toInt()) }
-            configData.optStringOrNull("S1")?.let { setS1(it.toInt()) }
-            configData.optStringOrNull("S2")?.let { setS2(it.toInt()) }
-            configData.optStringOrNull("H1")?.let { setH1(it.toLong()) }
-            configData.optStringOrNull("H2")?.let { setH2(it.toLong()) }
-            configData.optStringOrNull("H3")?.let { setH3(it.toLong()) }
-            configData.optStringOrNull("H4")?.let { setH4(it.toLong()) }
         }
     }
 }

client/android/awg/src/main/kotlin/AwgConfig.kt

@@ -1,108 +0,0 @@
-package org.amnezia.vpn.protocol.awg
-
-import org.amnezia.vpn.protocol.BadConfigException
-import org.amnezia.vpn.protocol.wireguard.WireguardConfig
-
-class AwgConfig private constructor(
-    wireguardConfigBuilder: WireguardConfig.Builder,
-    val jc: Int,
-    val jmin: Int,
-    val jmax: Int,
-    val s1: Int,
-    val s2: Int,
-    val h1: Long,
-    val h2: Long,
-    val h3: Long,
-    val h4: Long
-) : WireguardConfig(wireguardConfigBuilder) {
-
-    private constructor(builder: Builder) : this(
-        builder,
-        builder.jc,
-        builder.jmin,
-        builder.jmax,
-        builder.s1,
-        builder.s2,
-        builder.h1,
-        builder.h2,
-        builder.h3,
-        builder.h4
-    )
-
-    override fun appendDeviceLine(sb: StringBuilder) = with(sb) {
-        super.appendDeviceLine(this)
-        appendLine("jc=$jc")
-        appendLine("jmin=$jmin")
-        appendLine("jmax=$jmax")
-        appendLine("s1=$s1")
-        appendLine("s2=$s2")
-        appendLine("h1=$h1")
-        appendLine("h2=$h2")
-        appendLine("h3=$h3")
-        appendLine("h4=$h4")
-    }
-
-    class Builder : WireguardConfig.Builder() {
-
-        private var _jc: Int? = null
-        internal var jc: Int
-            get() = _jc ?: throw BadConfigException("AWG: parameter jc is undefined")
-            private set(value) { _jc = value }
-
-        private var _jmin: Int? = null
-        internal var jmin: Int
-            get() = _jmin ?: throw BadConfigException("AWG: parameter jmin is undefined")
-            private set(value) { _jmin = value }
-
-        private var _jmax: Int? = null
-        internal var jmax: Int
-            get() = _jmax ?: throw BadConfigException("AWG: parameter jmax is undefined")
-            private set(value) { _jmax = value }
-
-        private var _s1: Int? = null
-        internal var s1: Int
-            get() = _s1 ?: throw BadConfigException("AWG: parameter s1 is undefined")
-            private set(value) { _s1 = value }
-
-        private var _s2: Int? = null
-        internal var s2: Int
-            get() = _s2 ?: throw BadConfigException("AWG: parameter s2 is undefined")
-            private set(value) { _s2 = value }
-
-        private var _h1: Long? = null
-        internal var h1: Long
-            get() = _h1 ?: throw BadConfigException("AWG: parameter h1 is undefined")
-            private set(value) { _h1 = value }
-
-        private var _h2: Long? = null
-        internal var h2: Long
-            get() = _h2 ?: throw BadConfigException("AWG: parameter h2 is undefined")
-            private set(value) { _h2 = value }
-
-        private var _h3: Long? = null
-        internal var h3: Long
-            get() = _h3 ?: throw BadConfigException("AWG: parameter h3 is undefined")
-            private set(value) { _h3 = value }
-
-        private var _h4: Long? = null
-        internal var h4: Long
-            get() = _h4 ?: throw BadConfigException("AWG: parameter h4 is undefined")
-            private set(value) { _h4 = value }
-
-        fun setJc(jc: Int) = apply { this.jc = jc }
-        fun setJmin(jmin: Int) = apply { this.jmin = jmin }
-        fun setJmax(jmax: Int) = apply { this.jmax = jmax }
-        fun setS1(s1: Int) = apply { this.s1 = s1 }
-        fun setS2(s2: Int) = apply { this.s2 = s2 }
-        fun setH1(h1: Long) = apply { this.h1 = h1 }
-        fun setH2(h2: Long) = apply { this.h2 = h2 }
-        fun setH3(h3: Long) = apply { this.h3 = h3 }
-        fun setH4(h4: Long) = apply { this.h4 = h4 }
-
-        override fun build(): AwgConfig = configBuild().run { AwgConfig(this@Builder) }
-    }
-
-    companion object {
-        inline fun build(block: Builder.() -> Unit): AwgConfig = Builder().apply(block).build()
-    }
-}

client/android/src/org/amnezia/vpn/AmneziaVpnService.kt

@@ -22,6 +22,7 @@ import androidx.annotation.MainThread
 import androidx.core.app.ServiceCompat
 import androidx.core.content.ContextCompat
 import androidx.core.content.getSystemService
+import java.net.UnknownHostException
 import java.util.concurrent.ConcurrentHashMap
 import kotlin.LazyThreadSafetyMode.NONE
 import kotlinx.coroutines.CoroutineExceptionHandler
@@ -127,6 +128,8 @@ open class AmneziaVpnService : VpnService() {
 
             is LoadLibraryException -> onError("${e.message}. Caused: ${e.cause?.message}")
 
+            is UnknownHostException -> onError("Unknown host")
+
             else -> throw e
         }
     }

client/android/wireguard/src/main/kotlin/org/amnezia/vpn/protocol/wireguard/Wireguard.kt

@@ -129,12 +129,29 @@ open class Wireguard : Protocol() {
         val port = configData.getInt("port")
         setEndpoint(InetEndpoint(host, port))
 
+        if (configData.optBoolean("isObfuscationEnabled")) {
+            setUseProtocolExtension(true)
+            configExtensionParameters(configData)
+        }
+
         configData.optStringOrNull("persistent_keep_alive")?.let { setPersistentKeepalive(it.toInt()) }
         configData.getString("client_priv_key").let { setPrivateKeyHex(it.base64ToHex()) }
         configData.getString("server_pub_key").let { setPublicKeyHex(it.base64ToHex()) }
         configData.optStringOrNull("psk_key")?.let { setPreSharedKeyHex(it.base64ToHex()) }
     }
 
+    protected fun WireguardConfig.Builder.configExtensionParameters(configData: JSONObject) {
+        configData.optStringOrNull("Jc")?.let { setJc(it.toInt()) }
+        configData.optStringOrNull("Jmin")?.let { setJmin(it.toInt()) }
+        configData.optStringOrNull("Jmax")?.let { setJmax(it.toInt()) }
+        configData.optStringOrNull("S1")?.let { setS1(it.toInt()) }
+        configData.optStringOrNull("S2")?.let { setS2(it.toInt()) }
+        configData.optStringOrNull("H1")?.let { setH1(it.toLong()) }
+        configData.optStringOrNull("H2")?.let { setH2(it.toLong()) }
+        configData.optStringOrNull("H3")?.let { setH3(it.toLong()) }
+        configData.optStringOrNull("H4")?.let { setH4(it.toLong()) }
+    }
+
     private fun start(config: WireguardConfig, vpnBuilder: Builder, protect: (Int) -> Boolean) {
         if (tunnelHandle != -1) {
             Log.w(TAG, "Tunnel already up")

client/android/wireguard/src/main/kotlin/org/amnezia/vpn/protocol/wireguard/WireguardConfig.kt

@@ -1,6 +1,7 @@
 package org.amnezia.vpn.protocol.wireguard
 
 import android.util.Base64
+import org.amnezia.vpn.protocol.BadConfigException
 import org.amnezia.vpn.protocol.ProtocolConfig
 import org.amnezia.vpn.util.net.InetEndpoint
 
@@ -12,7 +13,17 @@ open class WireguardConfig protected constructor(
     val persistentKeepalive: Int,
     val publicKeyHex: String,
     val preSharedKeyHex: String?,
-    val privateKeyHex: String
+    val privateKeyHex: String,
+    val useProtocolExtension: Boolean,
+    val jc: Int?,
+    val jmin: Int?,
+    val jmax: Int?,
+    val s1: Int?,
+    val s2: Int?,
+    val h1: Long?,
+    val h2: Long?,
+    val h3: Long?,
+    val h4: Long?
 ) : ProtocolConfig(protocolConfigBuilder) {
 
     protected constructor(builder: Builder) : this(
@@ -21,7 +32,17 @@ open class WireguardConfig protected constructor(
         builder.persistentKeepalive,
         builder.publicKeyHex,
         builder.preSharedKeyHex,
-        builder.privateKeyHex
+        builder.privateKeyHex,
+        builder.useProtocolExtension,
+        builder.jc,
+        builder.jmin,
+        builder.jmax,
+        builder.s1,
+        builder.s2,
+        builder.h1,
+        builder.h2,
+        builder.h3,
+        builder.h4
     )
 
     fun toWgUserspaceString(): String = with(StringBuilder()) {
@@ -33,6 +54,30 @@ open class WireguardConfig protected constructor(
 
     open fun appendDeviceLine(sb: StringBuilder) = with(sb) {
         appendLine("private_key=$privateKeyHex")
+        if (useProtocolExtension) {
+            validateProtocolExtensionParameters()
+            appendLine("jc=$jc")
+            appendLine("jmin=$jmin")
+            appendLine("jmax=$jmax")
+            appendLine("s1=$s1")
+            appendLine("s2=$s2")
+            appendLine("h1=$h1")
+            appendLine("h2=$h2")
+            appendLine("h3=$h3")
+            appendLine("h4=$h4")
+        }
+    }
+
+    private fun validateProtocolExtensionParameters() {
+        if (jc == null) throw BadConfigException("Parameter jc is undefined")
+        if (jmin == null) throw BadConfigException("Parameter jmin is undefined")
+        if (jmax == null) throw BadConfigException("Parameter jmax is undefined")
+        if (s1 == null) throw BadConfigException("Parameter s1 is undefined")
+        if (s2 == null) throw BadConfigException("Parameter s2 is undefined")
+        if (h1 == null) throw BadConfigException("Parameter h1 is undefined")
+        if (h2 == null) throw BadConfigException("Parameter h2 is undefined")
+        if (h3 == null) throw BadConfigException("Parameter h3 is undefined")
+        if (h4 == null) throw BadConfigException("Parameter h4 is undefined")
     }
 
     open fun appendPeerLine(sb: StringBuilder) = with(sb) {
@@ -65,6 +110,18 @@ open class WireguardConfig protected constructor(
 
         override var mtu: Int = WIREGUARD_DEFAULT_MTU
 
+        internal var useProtocolExtension: Boolean = false
+
+        internal var jc: Int? = null
+        internal var jmin: Int? = null
+        internal var jmax: Int? = null
+        internal var s1: Int? = null
+        internal var s2: Int? = null
+        internal var h1: Long? = null
+        internal var h2: Long? = null
+        internal var h3: Long? = null
+        internal var h4: Long? = null
+
         fun setEndpoint(endpoint: InetEndpoint) = apply { this.endpoint = endpoint }
 
         fun setPersistentKeepalive(persistentKeepalive: Int) = apply { this.persistentKeepalive = persistentKeepalive }
@@ -75,6 +132,18 @@ open class WireguardConfig protected constructor(
 
         fun setPrivateKeyHex(privateKeyHex: String) = apply { this.privateKeyHex = privateKeyHex }
 
+        fun setUseProtocolExtension(useProtocolExtension: Boolean) = apply { this.useProtocolExtension = useProtocolExtension }
+
+        fun setJc(jc: Int) = apply { this.jc = jc }
+        fun setJmin(jmin: Int) = apply { this.jmin = jmin }
+        fun setJmax(jmax: Int) = apply { this.jmax = jmax }
+        fun setS1(s1: Int) = apply { this.s1 = s1 }
+        fun setS2(s2: Int) = apply { this.s2 = s2 }
+        fun setH1(h1: Long) = apply { this.h1 = h1 }
+        fun setH2(h2: Long) = apply { this.h2 = h2 }
+        fun setH3(h3: Long) = apply { this.h3 = h3 }
+        fun setH4(h4: Long) = apply { this.h4 = h4 }
+
         override fun build(): WireguardConfig = configBuild().run { WireguardConfig(this@Builder) }
     }
 

client/cmake/3rdparty.cmake

@@ -2,10 +2,6 @@ set(CLIENT_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR}/..)
 
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/Modules;${CMAKE_MODULE_PATH}")
 
-if(NOT IOS AND NOT ANDROID)
-   include(${CLIENT_ROOT_DIR}/3rd/SingleApplication/singleapplication.cmake)
-endif()
-
 add_subdirectory(${CLIENT_ROOT_DIR}/3rd/SortFilterProxyModel)
 set(LIBS ${LIBS} SortFilterProxyModel)
 include(${CLIENT_ROOT_DIR}/cmake/QSimpleCrypto.cmake)

client/core/controllers/apiController.cpp

@@ -357,9 +357,9 @@ ErrorCode ApiController::getConfigForService(const QString &installationUuid, co
 
         EVP_PKEY *publicKey = nullptr;
         try {
-            QByteArray key = m_isDevEnvironment ? DEV_AGW_PUBLIC_KEY : PROD_AGW_PUBLIC_KEY;
+            QByteArray rsaKey = m_isDevEnvironment ? DEV_AGW_PUBLIC_KEY : PROD_AGW_PUBLIC_KEY;
             QSimpleCrypto::QRsa rsa;
-            publicKey = rsa.getPublicKeyFromByteArray(key);
+            publicKey = rsa.getPublicKeyFromByteArray(rsaKey);
         } catch (...) {
             qCritical() << "error loading public key from environment variables";
             return ErrorCode::ApiMissingAgwPublicKey;

client/main.cpp

@@ -15,13 +15,24 @@
     #include "platforms/ios/QtAppDelegate-C-Interface.h"
 #endif
 
+#if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
+bool isAnotherInstanceRunning()
+{
+    QLocalSocket socket;
+    socket.connectToServer("AmneziaVPNInstance");
+    if (socket.waitForConnected(500)) {
+        qWarning() << "AmneziaVPN is already running";
+        return true;
+    }
+    return false;
+}
+#endif
+
 int main(int argc, char *argv[])
 {
     Migrations migrationsManager;
     migrationsManager.doMigrations();
 
-    QGuiApplication::setAttribute(Qt::AA_EnableHighDpiScaling, true);
-
 #ifdef Q_OS_WIN
     AllowSetForegroundWindow(ASFW_ANY);
 #endif
@@ -32,16 +43,14 @@ int main(int argc, char *argv[])
     qputenv("ANDROID_OPENSSL_SUFFIX", "_3");
 #endif
 
-#if defined(Q_OS_ANDROID) || defined(Q_OS_IOS)
     AmneziaApplication app(argc, argv);
-#else
-    AmneziaApplication app(argc, argv, true,
-                           SingleApplication::Mode::User | SingleApplication::Mode::SecondaryNotification);
 
-    if (!app.isPrimary()) {
+#if !defined(Q_OS_ANDROID) && !defined(Q_OS_IOS)
+    if (isAnotherInstanceRunning()) {
         QTimer::singleShot(1000, &app, [&]() { app.quit(); });
         return app.exec();
     }
+    app.startLocalServer();
 #endif
 
 // Allow to raise app window if secondary instance launched

client/platforms/ios/ios_controller.mm

@@ -499,6 +499,20 @@ bool IosController::setupWireGuard()
         wgConfig.insert(config_key::persistent_keep_alive, "25");
     }
 
+    if (config.contains(config_key::isObfuscationEnabled) && config.value(config_key::isObfuscationEnabled).toBool()) {
+        wgConfig.insert(config_key::initPacketMagicHeader, config[config_key::initPacketMagicHeader]);
+        wgConfig.insert(config_key::responsePacketMagicHeader, config[config_key::responsePacketMagicHeader]);
+        wgConfig.insert(config_key::underloadPacketMagicHeader, config[config_key::underloadPacketMagicHeader]);
+        wgConfig.insert(config_key::transportPacketMagicHeader, config[config_key::transportPacketMagicHeader]);
+
+        wgConfig.insert(config_key::initPacketJunkSize, config[config_key::initPacketJunkSize]);
+        wgConfig.insert(config_key::responsePacketJunkSize, config[config_key::responsePacketJunkSize]);
+
+        wgConfig.insert(config_key::junkPacketCount, config[config_key::junkPacketCount]);
+        wgConfig.insert(config_key::junkPacketMinSize, config[config_key::junkPacketMinSize]);
+        wgConfig.insert(config_key::junkPacketMaxSize, config[config_key::junkPacketMaxSize]);
+    }
+
     QJsonDocument wgConfigDoc(wgConfig);
     QString wgConfigDocStr(wgConfigDoc.toJson(QJsonDocument::Compact));
 

client/protocols/protocols_defs.h

@@ -65,6 +65,7 @@ namespace amnezia
         constexpr char last_config[] = "last_config";
 
         constexpr char isThirdPartyConfig[] = "isThirdPartyConfig";
+        constexpr char isObfuscationEnabled[] = "isObfuscationEnabled";
 
         constexpr char junkPacketCount[] = "Jc";
         constexpr char junkPacketMinSize[] = "Jmin";

client/settings.h

@@ -237,7 +237,7 @@ private:
     mutable SecureQSettings m_settings;
 
     QString m_gatewayEndpoint;
-    bool m_isDevGatewayEnv;
+    bool m_isDevGatewayEnv = false;
 };
 
 #endif // SETTINGS_H

client/ui/controllers/importController.cpp

@@ -242,24 +242,26 @@ void ImportController::processNativeWireGuardConfig()
     auto containers = m_config.value(config_key::containers).toArray();
     if (!containers.isEmpty()) {
         auto container = containers.at(0).toObject();
-        auto containerConfig = container.value(ContainerProps::containerTypeToString(DockerContainer::WireGuard)).toObject();
-        auto protocolConfig = QJsonDocument::fromJson(containerConfig.value(config_key::last_config).toString().toUtf8()).object();
+        auto serverProtocolConfig = container.value(ContainerProps::containerTypeToString(DockerContainer::WireGuard)).toObject();
+        auto clientProtocolConfig = QJsonDocument::fromJson(serverProtocolConfig.value(config_key::last_config).toString().toUtf8()).object();
 
         QString junkPacketCount = QString::number(QRandomGenerator::global()->bounded(2, 5));
         QString junkPacketMinSize = QString::number(10);
         QString junkPacketMaxSize = QString::number(50);
-        protocolConfig[config_key::junkPacketCount] = junkPacketCount;
-        protocolConfig[config_key::junkPacketMinSize] = junkPacketMinSize;
-        protocolConfig[config_key::junkPacketMaxSize] = junkPacketMaxSize;
-        protocolConfig[config_key::initPacketJunkSize] = "0";
-        protocolConfig[config_key::responsePacketJunkSize] = "0";
-        protocolConfig[config_key::initPacketMagicHeader] = "1";
-        protocolConfig[config_key::responsePacketMagicHeader] = "2";
-        protocolConfig[config_key::underloadPacketMagicHeader] = "3";
-        protocolConfig[config_key::transportPacketMagicHeader] = "4";
+        clientProtocolConfig[config_key::junkPacketCount] = junkPacketCount;
+        clientProtocolConfig[config_key::junkPacketMinSize] = junkPacketMinSize;
+        clientProtocolConfig[config_key::junkPacketMaxSize] = junkPacketMaxSize;
+        clientProtocolConfig[config_key::initPacketJunkSize] = "0";
+        clientProtocolConfig[config_key::responsePacketJunkSize] = "0";
+        clientProtocolConfig[config_key::initPacketMagicHeader] = "1";
+        clientProtocolConfig[config_key::responsePacketMagicHeader] = "2";
+        clientProtocolConfig[config_key::underloadPacketMagicHeader] = "3";
+        clientProtocolConfig[config_key::transportPacketMagicHeader] = "4";
 
-        containerConfig[config_key::last_config] = QString(QJsonDocument(protocolConfig).toJson());
-        container["wireguard"] = containerConfig;
+        clientProtocolConfig[config_key::isObfuscationEnabled] = true;
+
+        serverProtocolConfig[config_key::last_config] = QString(QJsonDocument(clientProtocolConfig).toJson());
+        container["wireguard"] = serverProtocolConfig;
         containers.replace(0, container);
         m_config[config_key::containers] = containers;
     }

client/ui/models/clientManagementModel.cpp

@@ -77,6 +77,7 @@ ErrorCode ClientManagementModel::updateModel(const DockerContainer container, co
 {
     beginResetModel();
     m_clientsTable = QJsonArray();
+    endResetModel();
 
     ErrorCode error = ErrorCode::NoError;
 
@@ -90,10 +91,10 @@ ErrorCode ClientManagementModel::updateModel(const DockerContainer container, co
     const QByteArray clientsTableString = serverController->getTextFileFromContainer(container, credentials, clientsTableFile, error);
     if (error != ErrorCode::NoError) {
         logger.error() << "Failed to get the clientsTable file from the server";
-        endResetModel();
         return error;
     }
 
+    beginResetModel();
     m_clientsTable = QJsonDocument::fromJson(clientsTableString).array();
 
     if (m_clientsTable.isEmpty()) {
@@ -601,5 +602,6 @@ QHash<int, QByteArray> ClientManagementModel::roleNames() const
     roles[LatestHandshakeRole] = "latestHandshake";
     roles[DataReceivedRole] = "dataReceived";
     roles[DataSentRole] = "dataSent";
+    roles[AllowedIpsRole] = "allowedIps";
     return roles;
 }