UserIdentity.php

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<?php

class UserIdentity extends CUserIdentity
{
    private $_id;
    const ERROR_EMAIL_INVALID = 3;
    const ERROR_STATUS_NOTACTIV = 4;
    const ERROR_STATUS_BAN = 5;
    public function authenticate()
    {
        if (strpos($this->username, "@")) {
            $user = User::model()->notsafe()->findByAttributes(array('email' => $this->username));
        } else {
            $user = User::model()->notsafe()->findByAttributes(array('username' => $this->username));
        }
        if ($user === null) {
            if (strpos($this->username, "@")) {
                $this->errorCode = self::ERROR_EMAIL_INVALID;
            } else {
                $this->errorCode = self::ERROR_USERNAME_INVALID;
            }
        } elseif (Yii::app()->getModule('user')->encrypting($this->password) !== $user->password) {
            $this->errorCode = self::ERROR_PASSWORD_INVALID;
        } elseif ($user->status == 0 && Yii::app()->getModule('user')->loginNotActiv == false) {
            $this->errorCode = self::ERROR_STATUS_NOTACTIV;
        } elseif ($user->status == -1) {
            $this->errorCode = self::ERROR_STATUS_BAN;
        } else {
            $this->_id = $user->id;
            $this->username = $user->username;
            $this->errorCode = self::ERROR_NONE;
        }

        return !$this->errorCode;
    }

    public function getId()
    {
        return $this->_id;
    }
}