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<?php |
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namespace app\controllers; |
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use Yii; |
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use yii\filters\AccessControl; |
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use app\models\User; |
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use app\models\UserLogin; |
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/** |
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* AuthController implements the authentication methods. |
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*/ |
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class AuthController extends BaseController |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function behaviors() |
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{ |
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return [ |
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'access' => [ |
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'class' => AccessControl::class, |
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'only' => ['login', 'logout'], |
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'rules' => [ |
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['allow' => true, 'actions' => ['login'], 'roles' => ['?']], |
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['allow' => true, 'actions' => ['logout'], 'roles' => ['@']], |
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], |
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], |
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]; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function init() |
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{ |
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parent::init(); |
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// Catch login event to afterLogin method |
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Yii::$app->user->on(\yii\web\User::EVENT_AFTER_LOGIN, ['app\models\User', 'afterLogin']); |
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} |
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/** |
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* Index redirects to login action. |
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* |
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* @return \yii\web\Response|string redirect or render |
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*/ |
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public function actionIndex() |
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{ |
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return $this->actionLogin(); |
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} |
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/** |
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* Login an user based on SSO auth if available, else use login form |
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* with LDAP backend if available or DB. |
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* |
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* @return \yii\web\Response|string redirect or render |
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*/ |
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public function actionLogin() |
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{ |
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if (!Yii::$app->user->isGuest) { |
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return $this->goBack(); |
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} |
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// SSO auth |
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$identity = $this->getFromSSO(); |
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if ($identity) { |
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// Login auto saves in DB |
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Yii::$app->user->login($identity, Yii::$app->params['cookieDuration']); |
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return $this->goBack(); |
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} |
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// User login form |
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$model = new UserLogin(); |
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if ($model->load(Yii::$app->request->post()) && $model->validate()) { |
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// Find in DB/LDAP |
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$identity = User::findIdentity($model->username); |
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// Authenticate |
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if ($identity !== null && $identity->authenticate($model->password)) { |
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Yii::$app->user->enableAutoLogin = $model->remember_me; |
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// Login auto saves in DB |
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Yii::$app->user->login($identity, Yii::$app->params['cookieDuration']); |
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return $this->goBack(); |
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} |
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$model->addError('username', Yii::t('app', 'Username or password incorrect')); |
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} |
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return $this->render('login', [ |
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'model' => $model, |
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]); |
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} |
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/** |
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* Check for SSO configuration and try to authenticate user. |
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* |
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* @return \app\models\User|null found user |
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*/ |
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private function getFromSSO() |
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{ |
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// SSO auth |
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if (Yii::$app->params['useSSO'] && isset($_SERVER[Yii::$app->params['ssoEnvUsername']])) { |
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$username = $_SERVER[Yii::$app->params['ssoEnvUsername']]; |
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// Find in DB/LDAP |
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return User::findIdentity($username); |
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} |
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} |
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/** |
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* Disconnects current user. |
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* |
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* @return \yii\web\Response |
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*/ |
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public function actionLogout() |
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{ |
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if (Yii::$app->user->isGuest) { |
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return $this->goBack(); |
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} |
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Yii::$app->user->logout(); |
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return $this->goHome(); |
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} |
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} |
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