PHP应用：Yii的Srbac插件用法详解

PHP编程
if(Yii::app()->user->checkAccess(what,$params)) {
  //what  --- role,或者task,也可以是operation,
  //params --- 是传进业务规则的参数key-value;
}

PHP编程
$params=array('uid'=>$id);
if(Yii::app()->user->checkAccess('delArticle',$params)) {
  //检查当前用户是否有删除文章权限
  //并且使用业务规则,检查用户id等于文章里面的作者id
  //通过验证,就执行删除操作
}

PHP编程
public function init() {
  //操作权限表,必须存在以下字段：
  //itemname角色名/ID,
  //type授权项目类型/1(任务)或者2(角色),
  //bizrule权限/逻辑运算表达式为false是有权限操作,
  //data数据/YII暂无利用
  Yii::app()->authManager->itemTable = 'AuthItem';
  //会员组-权限对应表,必须存在以下字段：
  //child子角色/ID,
  //parent父角色/ID,此表可循环执行,可多级继承
  Yii::app()->authManager->itemChildTable = 'uthItemChild';
  //会员-会员组对应表,会员组可直接为操作名称,必须存在以下字段：
  //itemname角色名/ID,
  //userid用户名/ID,
  //bizrule权限/逻辑运算表达式为false是有权限操作,
  //data数据/YII暂无利用
  Yii::app()->authManager->assignmentTable = 'zd_mem_glog';
}

PHP编程
class ProductController extends SBaseController
{
    ........
}
class SBaseController extends Controller
{
    ........
}

PHP编程
protected function beforeAction($action) {
  //载入模块分隔符
  $del = Helper::findModule('srbac')->delimeter;
  //取得前模块名称
  $mod = $this->module !== null ? $this->module->id . $del : "";
  $contrArr = explode("/", $this->id);
  $contrArr[sizeof($contrArr) - 1] = ucfirst($contrArr[sizeof($contrArr) - 1]);
  $controller = implode(".", $contrArr);
  $controller = str_replace("/", ".", $this->id);
  // 生成静态页面 模块+分隔符+控制器(首字母大写)+方法(首字母大写)例： model-ControllerAction
  if(sizeof($contrArr)==1){
   $controller = ucfirst($controller);
  }
  $access = $mod . $controller . ucfirst($this->action->id);
  //验证访问页面地址是否在总是允许列表里面,是返回有权限
  if (in_array($access, $this->allowedAccess())) {
   return true;
  }
  //验证SRBAC有无安装,没在安装,返回的权限访问
  if (!Yii::app()->getModule('srbac')->isInstalled()) {
   return true;
  }
  //验证SRBAC有无开启,没在开启,返回的权限访问
  if (Yii::app()->getModule('srbac')->debug) {
   return true;
  }
  // 权限验证
  if (!Yii::app()->user->checkAccess($access) || Yii::app()->user->isGuest) {
   $this->onUnauthorizedAccess();
  } else {
   return true;
  }
}

PHP编程
public function getAuthAssignments($userId)
{
  $rows=$this->db->createCommand()
    ->select()
    ->from($this->assignmentTable)
    ->where('userid=:userid', array(':userid'=>$userId))
    ->queryAll();
  $assignments=array();
  foreach($rows as $row)
  {
    if(($data=@unserialize($row['data']))===false)
      $data=null;
    $assignments[$row['itemname']]=new CAuthAssignment($this,$row['itemname'],$row['userid'],$row['bizrule'],$data);
  }
  return $assignments;
}

PHP编程
public function getAuthItem($name)
{
  $row=$this->db->createCommand()
    ->select()
    ->from($this->itemTable)
    ->where('name=:name', array(':name'=>$name))
    ->queryRow();
  if($row!==false)
  {
    if(($data=@unserialize($row['data']))===false)
      $data=null;
    return new CAuthItem($this,$row['name'],$row['type'],$row['description'],$row['bizrule'],$data);
  }
  else
    return null;
}

PHP编程
protected function checkAccessRecursive($itemName,$userId,$params,$assignments)
{
  if(($item=$this->getAuthItem($itemName))===null)
    return false;
  Yii::trace('Checking permission "'.$item->getName().'"','system.web.auth.CDbAuthManager');
  if(!isset($params['userId']))
    $params['userId'] = $userId;
  if($this->executeBizRule($item->getBizRule(),$params,$item->getData()))
  {
    if(in_array($itemName,$this->defaultRoles))
      return true;
    if(isset($assignments[$itemName]))
    {
      $assignment=$assignments[$itemName];
      if($this->executeBizRule($assignment->getBizRule(),$params,$assignment->getData()))
        return true;
    }
    $parents=$this->db->createCommand()
      ->select('parent')
      ->from($this->itemChildTable)
      ->where('child=:name', array(':name'=>$itemName))
      ->queryColumn();
    foreach($parents as $parent)
    {
      if($this->checkAccessRecursive($parent,$userId,$params,$assignments))
        return true;
    }
  }
  return false;
}

PHP编程
public function executeBizRule($bizRule,$params,$data)
{
  return $bizRule==='' || $bizRule===null || ($this->showErrors ? eval_r($bizRule)!=0 : @eval_r($bizRule)!=0);
}

PHP编程
'modules' => array(
  'srbac' => array(
    'userclass' => 'User',
    'userid' => 'id',
    'username' => 'username',
    'debug' => false,//confirm this field