SSO Yii2

AppSession.php

<?php

namespace app\components;

use yii\base\Component;
use app\models\Session as SessionModel;

/**
 * Created by PhpStorm.
 * User: ofid
 * Date: 10/30/17
 * Time: 13.55
 */
class AppSession extends Component
{
    public function init(){
        $session = SessionModel::findOne(['user_id' => \Yii::$app->user->id]);
        if(@$session->session_id != \Yii::$app->session->id)
            \Yii::$app->user->logout();
        parent::init();
    }
}

m171030_064758_create_table_session.php

<?php

use yii\db\Migration;

/**
 * Class m171030_064758_create_table_session
 */
class m171030_064758_create_table_session extends Migration
{
    /**
     * @inheritdoc
     */
    public function safeUp()
    {
        $this->createTable('session',[
            'id' => $this->primaryKey(),
            'user_id' => $this->integer()->notNull(),
            'session_id' => $this->string(128)->null(),
            'user_ip' => $this->string(128)->null(),
            'user_host' => $this->string(128)->null(),
            'remote_ip' => $this->string(128)->null(),
            'remote_host' => $this->string(128)->null(),
            'user_agent' => $this->string(1024)->null(),
            'created_at' => $this->dateTime(),
            'updated_at' => $this->dateTime()
        ]);

    }

    /**
     * @inheritdoc
     */
    public function safeDown()
    {
        echo "m171030_064758_create_table_session cannot be reverted.\n";

        $this->dropTable('session');
    }

    /*
    // Use up()/down() to run migration code without a transaction.
    public function up()
    {

    }

    public function down()
    {
        echo "m171030_064758_create_table_session cannot be reverted.\n";

        return false;
    }
    */
}

Session.php

<?php

namespace app\models;

use Yii;

/**
 * This is the model class for table "session".
 *
 * @property int $id
 * @property int $user_id
 * @property string $session_id
 * @property string $user_ip
 * @property string $user_host
 * @property string $remote_ip
 * @property string $remote_host
 * @property string $user_agent
 * @property string $created_at
 * @property string $updated_at
 */
class Session extends \yii\db\ActiveRecord
{
    /**
     * @inheritdoc
     */
    public static function tableName()
    {
        return 'session';
    }

    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            [['user_id'], 'required'],
            [['user_id'], 'integer'],
            [['created_at', 'updated_at'], 'safe'],
            [['session_id', 'user_ip', 'user_host', 'remote_ip', 'remote_host'], 'string', 'max' => 128],
            [['user_agent'], 'string', 'max' => 1024],
        ];
    }

    /**
     * @inheritdoc
     */
    public function attributeLabels()
    {
        return [
            'id' => 'ID',
            'user_id' => 'User ID',
            'session_id' => 'Session ID',
            'user_ip' => 'User Ip',
            'user_host' => 'User Host',
            'remote_ip' => 'Remote Ip',
            'remote_host' => 'Remote Host',
            'user_agent' => 'User Agent',
            'created_at' => 'Created At',
            'updated_at' => 'Updated At',
        ];
    }

    public function afterSave($insert, $changedAttributes)
    {
        $log = new LogLogin();
        $log->attributes = [
            'user_id' => $this->user_id,
            'user_ip' => $this->user_ip,
            'user_host' => $this->user_host,
            'remote_ip' => $this->remote_ip,
            'remote_host' => $this->remote_host,
            'user_agent' => $this->user_agent,
            'created_at' => date('Y-m-d H:i:s'),
        ];
        $log->save();
        parent::afterSave($insert, $changedAttributes);
    }
}

SiteController.php

<?php

namespace app\controllers;

use app\models\Session;
use Yii;
use yii\filters\AccessControl;
use yii\web\Controller;
use yii\web\Response;
use yii\filters\VerbFilter;
use app\models\LoginForm;
use app\models\ContactForm;

class SiteController extends Controller
{
    /**
     * @inheritdoc
     */
    public function behaviors()
    {
        return [
            'access' => [
                'class' => AccessControl::className(),
                'only' => ['logout','index'],
                'rules' => [
                    [
                        'actions' => ['logout','index'],
                        'allow' => true,
                        'roles' => ['@'],
                    ],
                ],
            ]
        ];
    }

    /**
     * @inheritdoc
     */
    public function actions()
    {
        return [
            'error' => [
                'class' => 'yii\web\ErrorAction',
            ],
            'captcha' => [
                'class' => 'yii\captcha\CaptchaAction',
                'fixedVerifyCode' => YII_ENV_TEST ? 'testme' : null,
            ],
        ];
    }

    /**
     * Displays homepage.
     *
     * @return string
     */
    public function actionIndex()
    {
        return $this->redirect('/dashboard');
    }

    /**
     * Login action.
     *
     * @return Response|string
     */
    public function actionLogin()
    {
        $this->layout = '//entry';

        if (!Yii::$app->user->isGuest) {
            return $this->goHome();
        }

        $model = new LoginForm();
        if ($model->load(Yii::$app->request->post()) && $model->login()) {
            $session = Session::findOne(['user_id' => Yii::$app->user->id]);
            if(is_null($session)) {
                $session = new Session();
                $session->created_at = date('Y-m-d H:i:s');
            }
            $session->attributes = [
                'user_id' => Yii::$app->user->id,
                'session_id' => Yii::$app->session->id,
                'user_ip' => Yii::$app->request->getRemoteIP(),
                'user_host' => Yii::$app->request->getRemoteIP(),
                'remote_ip' => Yii::$app->request->getRemoteIP(),
                'remote_host' => Yii::$app->request->getRemoteIP(),
                'user_agent' => Yii::$app->request->getUserAgent(),
                'updated_at' => date('Y-m-d H:i:s')
            ];
            $session->save();
            return $this->goBack();
        }
        return $this->render('login', [
            'model' => $model,
        ]);
    }

    /**
     * Logout action.
     *
     * @return Response
     */
    public function actionLogout()
    {
        Yii::$app->user->logout();

        return $this->goHome();
    }
}

web.php

<?php
$config = [
    ...
    'bootstrap' => ['log','AppSession'],
    ...
    'components' => [
        ...
            'AppSession' => [
                'class' => 'app\components\AppSession'
        ],
        ...
];

...
}