C++ QScriptSyntaxCheckResult::errorMessage方法代码示例

//-- \subsection{include(file)}
//-- Includes another source code file at this point. This is experimental, and breaks the
//-- lint tool, so use with care.
static QScriptValue js_include(QScriptContext *context, QScriptEngine *engine)
{
	QString path = context->argument(0).toString();
	UDWORD size;
	char *bytes = NULL;
	if (!loadFile(path.toAscii().constData(), &bytes, &size))
	{
		debug(LOG_ERROR, "Failed to read include file \"%s\"", path.toAscii().constData());
		return QScriptValue(false);
	}
	QString source = QString::fromAscii(bytes, size);
	free(bytes);
	QScriptSyntaxCheckResult syntax = QScriptEngine::checkSyntax(source);
	if (syntax.state() != QScriptSyntaxCheckResult::Valid)
	{
		debug(LOG_ERROR, "Syntax error in include %s line %d: %s", 
		      path.toAscii().constData(), syntax.errorLineNumber(), syntax.errorMessage().toAscii().constData());
		return QScriptValue(false);
	}
	context->setActivationObject(engine->globalObject());
	context->setThisObject(engine->globalObject());
	QScriptValue result = engine->evaluate(source, path);
	if (engine->hasUncaughtException())
	{
		int line = engine->uncaughtExceptionLineNumber();
		debug(LOG_ERROR, "Uncaught exception at line %d, include file %s: %s",
		      line, path.toAscii().constData(), result.toString().toAscii().constData());
		return QScriptValue(false);
	}
	return QScriptValue(true);
}

bool ProgramScriptAction::check(const QString &xmlFile, const TypeRule *rule,
                                SymFactory *factory)
{
    Q_UNUSED(rule);
    Q_UNUSED(factory);

    // Delete old program
    if (_program) {
        delete _program;
        _program = 0;
    }

    QScriptSyntaxCheckResult result =
            QScriptEngine::checkSyntax(_srcCode);
    if (result.state() != QScriptSyntaxCheckResult::Valid) {
        typeRuleError2(xmlFile,
                       srcLine() + result.errorLineNumber() - 1,
                       result.errorColumnNumber(),
                       QString("Syntax error: %1")
                            .arg(result.errorMessage()));
    }
    else {
        // Wrap the code into a function so that the return statement
        // is available to the code
        QString code = QString("function %1() {\n%2\n}")
                .arg(js::inlinefunc).arg(_srcCode);
        _program = new QScriptProgram(code, xmlFile, srcLine() - 1);
    }

    return true;
}

bool Terminal::execFile(QString filePath) {
    if(!Utils::isExtension(filePath, QString("js"))) {
        std::cout << "File Invalid..."
                  << std::endl
                  << "Acceptable extension *.js";
        return false;
    }

    QString script = Utils::getContent(filePath);

    if(script.isEmpty()) { return false; }

    QScriptSyntaxCheckResult result = this->m_engine->checkSyntax(script);

    if(result.state() == QScriptSyntaxCheckResult::Error) {
        QString error("Error on line %1 column %2\nMessage: %3");
        error = error.arg(QString::number(result.errorLineNumber()),
                          QString::number(result.errorColumnNumber()),
                          result.errorMessage());

        std::cout << error.toAscii().constData() << std::endl;
        return false;
    }

    Jsws *jsws = new Jsws(this->m_engine, script,parent());
    QScriptValue value = this->m_engine->newQObject(jsws);
    this->m_engine->globalObject().setProperty("WS", value);
    this->m_engine->evaluate(script);
    return true;
}

bool loadPlayerScript(QString path, int player, int difficulty)
{
	ASSERT_OR_RETURN(false, player < MAX_PLAYERS, "Player index %d out of bounds", player);
	QScriptEngine *engine = new QScriptEngine();
	UDWORD size;
	char *bytes = NULL;
	if (!loadFile(path.toAscii().constData(), &bytes, &size))
	{
		debug(LOG_ERROR, "Failed to read script file \"%s\"", path.toAscii().constData());
		return false;
	}
	QString source = QString::fromAscii(bytes, size);
	free(bytes);
	QScriptSyntaxCheckResult syntax = QScriptEngine::checkSyntax(source);
	ASSERT_OR_RETURN(false, syntax.state() == QScriptSyntaxCheckResult::Valid, "Syntax error in %s line %d: %s", 
	                 path.toAscii().constData(), syntax.errorLineNumber(), syntax.errorMessage().toAscii().constData());
	// Remember internal, reserved names
	QScriptValueIterator it(engine->globalObject());
	while (it.hasNext())
	{
		it.next();
		internalNamespace.insert(it.name(), 1);
	}
	QScriptValue result = engine->evaluate(source, path);
	ASSERT_OR_RETURN(false, !engine->hasUncaughtException(), "Uncaught exception at line %d, file %s: %s", 
	                 engine->uncaughtExceptionLineNumber(), path.toAscii().constData(), result.toString().toAscii().constData());
	// Special functions
	engine->globalObject().setProperty("setTimer", engine->newFunction(js_setTimer));
	engine->globalObject().setProperty("queue", engine->newFunction(js_queue));
	engine->globalObject().setProperty("removeTimer", engine->newFunction(js_removeTimer));
	engine->globalObject().setProperty("include", engine->newFunction(js_include));
	engine->globalObject().setProperty("bind", engine->newFunction(js_bind));

	// Special global variables
	engine->globalObject().setProperty("me", player, QScriptValue::ReadOnly | QScriptValue::Undeletable);
	engine->globalObject().setProperty("selectedPlayer", selectedPlayer, QScriptValue::ReadOnly | QScriptValue::Undeletable);
	engine->globalObject().setProperty("gameTime", gameTime, QScriptValue::ReadOnly | QScriptValue::Undeletable);
	engine->globalObject().setProperty("difficulty", difficulty, QScriptValue::ReadOnly | QScriptValue::Undeletable);
	engine->globalObject().setProperty("mapName", game.map, QScriptValue::ReadOnly | QScriptValue::Undeletable);
	engine->globalObject().setProperty("baseType", game.base, QScriptValue::ReadOnly | QScriptValue::Undeletable);
	engine->globalObject().setProperty("alliancesType", game.alliance, QScriptValue::ReadOnly | QScriptValue::Undeletable);
	engine->globalObject().setProperty("powerType", game.power, QScriptValue::ReadOnly | QScriptValue::Undeletable);
	engine->globalObject().setProperty("maxPlayers", game.maxPlayers, QScriptValue::ReadOnly | QScriptValue::Undeletable);
	engine->globalObject().setProperty("scavengers", game.scavengers, QScriptValue::ReadOnly | QScriptValue::Undeletable);

	// Regular functions
	registerFunctions(engine);

	// Register script
	scripts.push_back(engine);

	return true;
}

void JavascriptInstance::Load()
{
    PROFILE(JSInstance_Load);
    if (!engine_)
        CreateEngine();

    if (sourceFile.isEmpty() && scriptRefs_.empty())
    {
        LogError("JavascriptInstance::Load: No script content to load!");
        return;
    }
    // Can't specify both a file source and an Asset API source.
    if (!sourceFile.isEmpty() && !scriptRefs_.empty())
    {
        LogError("JavascriptInstance::Load: Cannot specify both an local input source file and a list of script refs to load!");
        return;
    }

    bool useAssetAPI = !scriptRefs_.empty();
    size_t numScripts = useAssetAPI ? scriptRefs_.size() : 1;

    // Determine based on code origin whether it can be trusted with system access or not
    if (useAssetAPI)
    {
        trusted_ = true;
        for(unsigned i = 0; i < scriptRefs_.size(); ++i)
            trusted_ = trusted_ && scriptRefs_[i]->IsTrusted();
    }
    else // Local file: always trusted.
    {
        program_ = LoadScript(sourceFile);
        trusted_ = true; // This is a file on the local filesystem. We are making an assumption nobody can inject untrusted code here.
        // Actually, we are assuming the attacker does not know the absolute location of the asset cache locally here, since if he makes
        // the client to load a script into local cache, he could use this code path to automatically load that unsafe script from cache, and make it trusted. -jj.
    }

    // Check the validity of the syntax in the input.
    for (size_t i = 0; i < numScripts; ++i)
    {
        QString scriptSourceFilename = (useAssetAPI ? scriptRefs_[i]->Name() : sourceFile);
        QString &scriptContent = (useAssetAPI ? scriptRefs_[i]->scriptContent : program_);

        QScriptSyntaxCheckResult syntaxResult = engine_->checkSyntax(scriptContent);
        if (syntaxResult.state() != QScriptSyntaxCheckResult::Valid)
        {
            LogError("Syntax error in script " + scriptSourceFilename + "," + QString::number(syntaxResult.errorLineNumber()) +
                ": " + syntaxResult.errorMessage());

            // Delete our loaded script content (if any exists).
            program_ == "";
        }
    }
}

bool ScriptLoader::performSyntaxCheck(const QString & script)
{
    QScriptSyntaxCheckResult syntaxCheck = p_engine->checkSyntax(script);

    if(syntaxCheck.state() != QScriptSyntaxCheckResult::Valid)
    {
        qDebug() << "ScriptLoader::load: Syntax error in the script";
        qDebug() << "Line" << syntaxCheck.errorLineNumber() << ": error:" << syntaxCheck.errorMessage();
        return false;
    }

    return true;
}

ScriptSandbox::ScriptSandbox(const PluginManager *parent, const QString &file, const QString &script, AdamantPlugin *owner)
    : QObject()
    , _manager(parent)
    , _script(script)
    , _owner(owner)
    , _engine()
    , _engineDebugger()
    , _errorString()
{
    _engineDebugger.attachTo(&_engine);
    _program = QScriptProgram(_script, file);

    // Register MetaTypes, sometimes Q_DECL doesn't seem to cut it...
    qRegisterMetaType<Session::Request*>("Session::Request");
    qRegisterMetaType<AdamantUI*>("AdamantUI");
    qRegisterMetaType<ItemManager*>("ItemManager");
    qRegisterMetaType<AdamantUI::ApplicationTheme>("ApplicationTheme");
//    qScriptRegisterMetaType<AdamantUI::ApplicationTheme>(&_engine, [](QScriptEngine *engine, const AdamantUI::ApplicationTheme &t) -> QScriptValue {
//        return QScriptValue(static_cast<int>(t));
//    }, [](const QScriptValue &obj, AdamantUI::ApplicationTheme &t) {
//        t = static_cast<AdamantUI::ApplicationTheme>(obj.toInt32());
//    });


    QScriptSyntaxCheckResult syntax = _engine.checkSyntax(_script);
    if (syntax.state() != QScriptSyntaxCheckResult::Valid){
        _errorString = syntax.errorMessage();
    }
    else {
        // Default Globals
        addGlobalObject("manager", (QObject*)_manager);
        addGlobalObject("script", this);
        addGlobalObject("core", _manager->core());
        addGlobalObject("app", qApp);
    }

    {
        QScriptValue func = _engine.newFunction(ScriptSandbox::runFunc, this);
        _engine.globalObject().setProperty("run", func);
    }

    {
        QScriptValue func = _engine.newFunction(ScriptSandbox::importFunc, this);
        _engine.globalObject().setProperty("using", func);
    }

    {
        QScriptValue func = _engine.newFunction(ScriptSandbox::printFunc, this);
        _engine.globalObject().setProperty("print", func);
    }
}

Script::Script(QString script)
{
    setObjectName(metaObject()->className());
    
    addOutputPort("ERROR");

    //From http://www.qtcentre.org/threads/10425-QtScript-newFunction-won-t-work
        
    QScriptValue that = scriptEngine.newQObject(this, QScriptEngine::QtOwnership, QScriptEngine::ExcludeChildObjects
		| QScriptEngine::ExcludeSuperClassMethods | QScriptEngine::ExcludeSuperClassProperties);
    scriptEngine.globalObject().setProperty("self",that);
    //Log in console
    scriptEngine.evaluate("function echo(str){self.scriptEcho(str);};");
    //Add input 
    scriptEngine.evaluate("function addInputPort(str){self.scriptAddInputPort(str);};");
    //Add output
    scriptEngine.evaluate("function addOutputPort(str){self.scriptAddOutputPort(str);};");
    //Set self starting
    scriptEngine.evaluate("function setSelfStarting(str){self.scriptSetSelfStarting(str);};");
    //Receive
    scriptEngine.evaluate("function receive(str){return self.scriptReceive(str);};");
    //Send
    scriptEngine.evaluate("function send(str, val){self.scriptSend(str, val);};");
    //Read file
    scriptEngine.evaluate("function readFile(str){return self.scriptReadFile(str);};");
    
    //------------------------------------------------------------------
    // EVALUATE THE SCRIPT 
    //------------------------------------------------------------------
    QScriptSyntaxCheckResult check = scriptEngine.checkSyntax(script);
    if(check.state() != QScriptSyntaxCheckResult::Valid)
    {
        std::cerr << QString("Error in script line %1, column %2: %3")
                .arg(check.errorLineNumber())
                .arg(check.errorColumnNumber())
                .arg(check.errorMessage())
                .toStdString() << std::endl;
    }
    else if(!scriptEngine.canEvaluate(script))
    {
        std::cerr << QString("Can't evaluate script: unknown error.")
                .toStdString() << std::endl;
    }
    else
    {        
        scriptEngine.evaluate(script);
        scriptEngine.evaluate("init()");
    }
}

bool QtScriptFemCondition3D::setCondition(QString script)
{
    QString func = "function isApplied(x, y, z){\n";
    func += "return " + script + ";\n}";
    script_ = script;
    QScriptSyntaxCheckResult chk = QScriptEngine::checkSyntax(func);
    if (chk.state() != QScriptSyntaxCheckResult::Valid)
    {
        std::cout << "Ошибка анализа граничного условия: " << chk.errorMessage().toStdString() << std::endl;
        return false;
    }
    object_ = engine_.evaluate(func);
    if (object_.isError())return false;
    return true;
}

QScriptValue EntityTreeRenderer::loadEntityScript(EntityItem* entity) {
    if (!entity) {
        return QScriptValue(); // no entity...
    }
    
    EntityItemID entityID = entity->getEntityItemID();
    if (_entityScripts.contains(entityID)) {
        EntityScriptDetails details = _entityScripts[entityID];
        
        // check to make sure our script text hasn't changed on us since we last loaded it
        if (details.scriptText == entity->getScript()) {
            return details.scriptObject; // previously loaded
        }
        
        // if we got here, then we previously loaded a script, but the entity's script value
        // has changed and so we need to reload it.
        _entityScripts.remove(entityID);
    }
    if (entity->getScript().isEmpty()) {
        return QScriptValue(); // no script
    }
    
    QString scriptContents = loadScriptContents(entity->getScript());
    
    QScriptSyntaxCheckResult syntaxCheck = QScriptEngine::checkSyntax(scriptContents);
    if (syntaxCheck.state() != QScriptSyntaxCheckResult::Valid) {
        qDebug() << "EntityTreeRenderer::loadEntityScript() entity:" << entityID;
        qDebug() << "   " << syntaxCheck.errorMessage() << ":"
                          << syntaxCheck.errorLineNumber() << syntaxCheck.errorColumnNumber();
        qDebug() << "    SCRIPT:" << entity->getScript();
        return QScriptValue(); // invalid script
    }
    
    QScriptValue entityScriptConstructor = _entitiesScriptEngine->evaluate(scriptContents);
    
    if (!entityScriptConstructor.isFunction()) {
        qDebug() << "EntityTreeRenderer::loadEntityScript() entity:" << entityID;
        qDebug() << "    NOT CONSTRUCTOR";
        qDebug() << "    SCRIPT:" << entity->getScript();
        return QScriptValue(); // invalid script
    }

    QScriptValue entityScriptObject = entityScriptConstructor.construct();
    EntityScriptDetails newDetails = { entity->getScript(), entityScriptObject };
    _entityScripts[entityID] = newDetails;

    return entityScriptObject; // newly constructed
}

void CConsole::evaluate() {
	QScriptSyntaxCheckResult result = m_engine->checkSyntax( m_text->toPlainText() );
	switch (result.state()) {
		case QScriptSyntaxCheckResult::Valid:
			qDebug() << "Valid Syntax";
			break;
		case QScriptSyntaxCheckResult::Error:
		case QScriptSyntaxCheckResult::Intermediate:
			qDebug() << "Invalid Syntax at" << result.errorLineNumber() << result.errorMessage();
			return;
			break;
	};
	if(m_engine->canEvaluate( m_text->toPlainText() )) {
		qDebug() << "Evaluatable";
	} else {
		qDebug() << "Non-evaluatable";
	}
}

void JavascriptInstance::IncludeFile(const QString &path)
{
    for(uint i = 0; i < includedFiles.size(); ++i)
        if (includedFiles[i].toLower() == path.toLower())
        {
            LogDebug("JavascriptInstance::IncludeFile: Not including already included file " + path);
            return;
        }

    QString script = LoadScript(path);

    QScriptContext *context = engine_->currentContext();
    assert(context);
    if (!context)
    {
        LogError("JavascriptInstance::IncludeFile: QScriptEngine::currentContext() returned null!");
        return;
    }

    QScriptContext *parent = context->parentContext();
    if (!parent)
    {
        LogError("JavascriptInstance::IncludeFile: QScriptEngine::parentContext() returned null!");
        return;
    }

    context->setActivationObject(context->parentContext()->activationObject());
    context->setThisObject(context->parentContext()->thisObject());

    QScriptSyntaxCheckResult syntaxResult = engine_->checkSyntax(script);
    if(syntaxResult.state() != QScriptSyntaxCheckResult::Valid)
    {
        LogError("JavascriptInstance::IncludeFile: Syntax error in " + path + ". " + syntaxResult.errorMessage() +
            " In line:" + QString::number(syntaxResult.errorLineNumber()));
        return;
    }

    QScriptValue result = engine_->evaluate(script, path);

    includedFiles.push_back(path);
    
    if (engine_->hasUncaughtException())
        LogError(result.toString());
}

void ScriptForm::accept()
{
    m_script = textEdit->toPlainText();
    QScriptEngine javaScriptParser;
    int errorLineNumber = 0;
    QString errorMessage;
#if QT_VERSION >= 0x040500
    QScriptSyntaxCheckResult syntaxResult =
            javaScriptParser.checkSyntax(m_script);
    if (syntaxResult.state() != QScriptSyntaxCheckResult::Valid) {
        errorLineNumber = syntaxResult.errorLineNumber();
        errorMessage = syntaxResult.errorMessage();
        if (errorMessage.isEmpty())
            errorMessage = tr("Syntax Error");
    }
#else
    QScriptValue value(&javaScriptParser, 0);
    javaScriptParser.globalObject().setProperty("cellRow", value);
    javaScriptParser.globalObject().setProperty("cellColumn", value);
    javaScriptParser.globalObject().setProperty("cellValue", value);
    QScriptValue result = javaScriptParser.evaluate(m_script);
    if (javaScriptParser.hasUncaughtException()) {
        errorLineNumber = javaScriptParser
                .uncaughtExceptionLineNumber();
        errorMessage = javaScriptParser.uncaughtException()
                .toString();
    }
#endif
    if (!errorMessage.isEmpty()) {
        AQP::warning(this, tr("Error"),
                tr("Invalid script on line %1:\n%2")
                   .arg(errorLineNumber).arg(errorMessage));
        QTextCursor cursor = textEdit->textCursor();
        cursor.clearSelection();
        cursor.movePosition(QTextCursor::Start);
        cursor.movePosition(QTextCursor::Down,
                QTextCursor::MoveAnchor, errorLineNumber - 1);
        cursor.select(QTextCursor::LineUnderCursor);
        textEdit->setTextCursor(cursor);
    }
    else
        QDialog::accept();
}

void DroneshareUploadDialog::vehicleQueryComplete(const QString &jsonResponse)
{
    QLOG_DEBUG() << "droneshare: Vehicle Query Complete"/* << jsonResponse*/;

    QScriptSyntaxCheckResult syntaxCheck = QScriptEngine::checkSyntax(jsonResponse);
    QScriptEngine engine;
    QScriptValue result = engine.evaluate("("+jsonResponse+")");

    if (engine.hasUncaughtException()){
        QLOG_ERROR() << "Error evaluating version object";
        QLOG_ERROR() << "Error @line#" << engine.uncaughtExceptionLineNumber();
        QLOG_ERROR() << "Backtrace:" << engine.uncaughtExceptionBacktrace();
        QLOG_ERROR() << "Syntax Check:" << syntaxCheck.errorMessage();
        QLOG_ERROR() << "Syntax Check line:" << syntaxCheck.errorLineNumber()
                     << " col:" << syntaxCheck.errorColumnNumber();
        return;
    }
    ui->statusLabel->setText("Vehicle Query Complete.");
    QMap<QString,QString> vehicleList;

    QScriptValue entries = result.property("vehicles");
    QScriptValueIterator it(entries);
    while (it.hasNext()){
        it.next();
        QScriptValue entry = it.value();
        QString uuid = entry.property("uuid").toString();
        QString name = entry.property("name").toString();
        vehicleList.insert(name,uuid);
    }

    bool ok = false;
    QString item = QInputDialog::getItem(this, tr("Vehicle Selection"),tr("vehicle"),vehicleList.keys(),1,
                                                          false, &ok, Qt::Dialog, Qt::ImhNone);
    if (ok){
        startLogUpload(vehicleList.value(item));
    }

    m_droneshareQuery->deleteLater();
    m_droneshareQuery = NULL;
}

void BluemonkeySink::writeProgram(QString program)
{
	QScriptSyntaxCheckResult result = QScriptEngine::checkSyntax(program);
	if(result.state() != QScriptSyntaxCheckResult::Valid)
	{
		DebugOut(DebugOut::Error)<<"Syntax error in program: "<<result.errorMessage().toStdString()<<endl;
		return;
	}

	QFile file(configuration["customPrograms"].c_str());

	if(!file.open(QIODevice::ReadWrite | QIODevice::Append))
	{
		DebugOut(DebugOut::Error)<<"failed to open file: "<<file.fileName().toStdString()<<endl;
		return;
	}

	file.write(program.toUtf8());
	file.write("\n");

	file.close();
}