portal/db/models/user.go

package models

import (
	"errors"
	"time"

	emailverifier "github.com/AfterShip/email-verifier"
	"gorm.io/gorm"
)

type User struct {
	gorm.Model
	FirstName    string
	LastName     string
	Email        string `gorm:"unique"`
	PasswordHash string
	Role         string
	PublicKeys   []PublicKey
	APIKeys      []APIKey
	Uploads      []Upload
	LastLogin    *time.Time
	LastLoginIP  string
	OTPEnabled   bool `gorm:"default:false;"`
	OTPVerified  bool `gorm:"default:false;"`
	OTPSecret    string
	OTPAuthUrl   string
}

func (u *User) BeforeUpdate(tx *gorm.DB) error {
	if tx.Statement.Changed("Email") {
		verify, err := getEmailVerfier().Verify(u.Email)
		if err != nil {
			return err
		}
		if !verify.Syntax.Valid {
			return errors.New("email is invalid")
		}
	}

	return nil
}

func getEmailVerfier() *emailverifier.Verifier {
	verifier := emailverifier.NewVerifier()

	verifier.DisableSMTPCheck()
	verifier.DisableGravatarCheck()
	verifier.DisableDomainSuggest()
	verifier.DisableAutoUpdateDisposable()

	return verifier
}