yii2.0權限控制 ACF權限--登錄驗證

ACF是一種通過yii\filters\AccessControl類來實現的簡單授權

一般在控制器中我們調用如下：
打開backend\controller\SiteController.php 我們看到這樣一段代碼

public function behaviors()
{
return [
'access' => [
'class' => AccessControl::className(),
'rules' => [
[
'actions' => ['login', 'error'],
'allow' => true,
],
[
'actions' => ['logout', 'index'],
'allow' => true,
'roles' => ['@'],
],
],
],
'verbs' => [
'class' => VerbFilter::className(),
'actions' => [
'logout' => ['post'],
],
],
];
}

幾個必須到配置：
1、配置驗證類User

'user' => [
'identityClass' => 'common\models\Usermember',
'enableAutoLogin' => true,
'identityCookie' => ['name' => '_identity-frontend', 'httpOnly' => true],
'loginUrl'=>'/public/login'
],

2、繼承IdentityInterface接口
一般來說，從數據庫查找數據，只需要繼承AR類即可，但是，我們這個是用戶登錄模型，核心是驗證，所以自然需要實現核心的驗證功能，就像LoginForm模型提到的validatePassword一樣，實際的驗證邏輯是在當前的User模型完成的。一般來說，實現IdentityInterface接口，需要實現以下方法：

public static function findIdentity($id); //①

public static function findIdentityByAccessToken($token, $type = null);   //②

public function getId();    //③

public function getAuthKey();   //④

public function validateAuthKey($authKey);    //⑤

3、登錄到login()做相關調用驗證：

public function login()
{
if ($this->validate()) {
if($this->rememberMe)
{
$this->_user->generateAuthKey();//③
}
return Yii::$app->user->login($this->getUser(), $this->rememberMe ? 36002430 : 0);
}
return false;
}

4、對用到控制器類做配置

/**

• {@inheritdoc}
  */
  public function behaviors()
  {
  return [
  'access' => [
  'class' => AccessControl::className(),
  'only' => ['userhome', 'signup'],
  'rules' => [
  [
  'actions' => ['','signup'],
  'allow' => true,
  'roles' => ['?'],
  ],
  [
  'actions' => ['userhome'],
  'allow' => true,
  'roles' => ['@'],
  ],
  ],
  ],
  'verbs' => [
  'class' => VerbFilter::className(),
  'actions' => [
  'logout' => ['post'],
  ],
  ],
  ];
  }