YII 类库手册

public function afterControllerAction($controller,$action)
{
}

public function beforeControllerAction($controller,$action)
{
    return true;
}

public function createController($route,$owner=null)
{
    if($owner===null)
        $owner=$this;
    if(($route=trim($route,'/'))==='')
        $route=$owner->defaultController;
    $caseSensitive=$this->getUrlManager()->caseSensitive;

    $route.='/';
    while(($pos=strpos($route,'/'))!==false)
    {
        $id=substr($route,0,$pos);
        if(!preg_match('/^\w+$/',$id))
            return null;
        if(!$caseSensitive)
            $id=strtolower($id);
        $route=(string)substr($route,$pos+1);
        if(!isset($basePath))  // first segment
        {
            if(isset($owner->controllerMap[$id]))
            {
                return array(
                    Yii::createComponent($owner->controllerMap[$id],$id,$owner===$this?null:$owner),
                    $this->parseActionParams($route),
                );
            }

            if(($module=$owner->getModule($id))!==null)
                return $this->createController($route,$module);

            $basePath=$owner->getControllerPath();
            $controllerID='';
        }
        else
            $controllerID.='/';
        $className=ucfirst($id).'Controller';
        $classFile=$basePath.DIRECTORY_SEPARATOR.$className.'.php';
        if(is_file($classFile))
        {
            if(!class_exists($className,false))
                require($classFile);
            if(class_exists($className,false) && is_subclass_of($className,'CController'))
            {
                $id[0]=strtolower($id[0]);
                return array(
                    new $className($controllerID.$id,$owner===$this?null:$owner),
                    $this->parseActionParams($route),
                );
            }
            return null;
        }
        $controllerID.=$id;
        $basePath.=DIRECTORY_SEPARATOR.$id;
    }
}

public function findModule($id)
{
    if(($controller=$this->getController())!==null && ($module=$controller->getModule())!==null)
    {
        do
        {
            if(($m=$module->getModule($id))!==null)
                return $m;
        } while(($module=$module->getParentModule())!==null);
    }
    if(($m=$this->getModule($id))!==null)
        return $m;
}

public function getAssetManager()
{
    return $this->getComponent('assetManager');
}

public function getAuthManager()
{
    return $this->getComponent('authManager');
}

public function getClientScript()
{
    return $this->getComponent('clientScript');
}

public function getController()
{
    return $this->_controller;
}

public function getControllerPath()
{
    if($this->_controllerPath!==null)
        return $this->_controllerPath;
    else
        return $this->_controllerPath=$this->getBasePath().DIRECTORY_SEPARATOR.'controllers';
}

public function getLayoutPath()
{
    if($this->_layoutPath!==null)
        return $this->_layoutPath;
    else
        return $this->_layoutPath=$this->getViewPath().DIRECTORY_SEPARATOR.'layouts';
}

public function getSession()
{
    return $this->getComponent('session');
}

public function getSystemViewPath()
{
    if($this->_systemViewPath!==null)
        return $this->_systemViewPath;
    else
        return $this->_systemViewPath=$this->getViewPath().DIRECTORY_SEPARATOR.'system';
}

public function getTheme()
{
    if(is_string($this->_theme))
        $this->_theme=$this->getThemeManager()->getTheme($this->_theme);
    return $this->_theme;
}

public function getThemeManager()
{
    return $this->getComponent('themeManager');
}

public function getUser()
{
    return $this->getComponent('user');
}

public function getViewPath()
{
    if($this->_viewPath!==null)
        return $this->_viewPath;
    else
        return $this->_viewPath=$this->getBasePath().DIRECTORY_SEPARATOR.'views';
}

public function getViewRenderer()
{
    return $this->getComponent('viewRenderer');
}

public function getWidgetFactory()
{
    return $this->getComponent('widgetFactory');
}

protected function init()
{
    parent::init();
    // preload 'request' so that it has chance to respond to onBeginRequest event.
    $this->getRequest();
}

protected function parseActionParams($pathInfo)
{
    if(($pos=strpos($pathInfo,'/'))!==false)
    {
        $manager=$this->getUrlManager();
        $manager->parsePathInfo((string)substr($pathInfo,$pos+1));
        $actionID=substr($pathInfo,0,$pos);
        return $manager->caseSensitive ? $actionID : strtolower($actionID);
    }
    else
        return $pathInfo;
}

public function processRequest()
{
    if(is_array($this->catchAllRequest) && isset($this->catchAllRequest[0]))
    {
        $route=$this->catchAllRequest[0];
        foreach(array_splice($this->catchAllRequest,1) as $name=>$value)
            $_GET[$name]=$value;
    }
    else
        $route=$this->getUrlManager()->parseUrl($this->getRequest());
    $this->runController($route);
}

protected function registerCoreComponents()
{
    parent::registerCoreComponents();

    $components=array(
        'session'=>array(
            'class'=>'CHttpSession',
        ),
        'assetManager'=>array(
            'class'=>'CAssetManager',
        ),
        'user'=>array(
            'class'=>'CWebUser',
        ),
        'themeManager'=>array(
            'class'=>'CThemeManager',
        ),
        'authManager'=>array(
            'class'=>'CPhpAuthManager',
        ),
        'clientScript'=>array(
            'class'=>'CClientScript',
        ),
        'widgetFactory'=>array(
            'class'=>'CWidgetFactory',
        ),
    );

    $this->setComponents($components);
}

public function runController($route)
{
    if(($ca=$this->createController($route))!==null)
    {
        list($controller,$actionID)=$ca;
        $oldController=$this->_controller;
        $this->_controller=$controller;
        $controller->init();
        $controller->run($actionID);
        $this->_controller=$oldController;
    }
    else
        throw new CHttpException(404,Yii::t('yii','Unable to resolve the request "{route}".',
            array('{route}'=>$route===''?$this->defaultController:$route)));
}

public function setController($value)
{
    $this->_controller=$value;
}

public function setControllerPath($value)
{
    if(($this->_controllerPath=realpath($value))===false || !is_dir($this->_controllerPath))
        throw new CException(Yii::t('yii','The controller path "{path}" is not a valid directory.',
            array('{path}'=>$value)));
}

public function setLayoutPath($path)
{
    if(($this->_layoutPath=realpath($path))===false || !is_dir($this->_layoutPath))
        throw new CException(Yii::t('yii','The layout path "{path}" is not a valid directory.',
            array('{path}'=>$path)));
}

public function setSystemViewPath($path)
{
    if(($this->_systemViewPath=realpath($path))===false || !is_dir($this->_systemViewPath))
        throw new CException(Yii::t('yii','The system view path "{path}" is not a valid directory.',
            array('{path}'=>$path)));
}

public function setTheme($value)
{
    $this->_theme=$value;
}

public function setViewPath($path)
{
    if(($this->_viewPath=realpath($path))===false || !is_dir($this->_viewPath))
        throw new CException(Yii::t('yii','The view path "{path}" is not a valid directory.',
            array('{path}'=>$path)));
}