Encrypted messaging app
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2.2 KiB

package Models
import (
"database/sql/driver"
"gorm.io/gorm"
)
// BeforeUpdate prevents updating the email if it has not changed
// This stops a unique constraint error
func (u *User) BeforeUpdate(tx *gorm.DB) (err error) {
if !tx.Statement.Changed("Username") {
tx.Statement.Omit("Username")
}
return nil
}
// MessageExpiry holds values for how long messages should expire by default
type MessageExpiry []uint8
const (
// MessageExpiryFifteenMin expires after 15 minutes
MessageExpiryFifteenMin = "fifteen_min"
// MessageExpiryThirtyMin expires after 30 minutes
MessageExpiryThirtyMin = "thirty_min"
// MessageExpiryOneHour expires after one hour
MessageExpiryOneHour = "one_hour"
// MessageExpiryThreeHour expires after three hours
MessageExpiryThreeHour = "three_hour"
// MessageExpirySixHour expires after six hours
MessageExpirySixHour = "six_hour"
// MessageExpiryTwelveHour expires after twelve hours
MessageExpiryTwelveHour = "twelve_hour"
// MessageExpiryOneDay expires after one day
MessageExpiryOneDay = "one_day"
// MessageExpiryThreeDay expires after three days
MessageExpiryThreeDay = "three_day"
// MessageExpiryNoExpiry never expires
MessageExpiryNoExpiry = "no_expiry"
)
// Scan new value into MessageExpiry
func (e *MessageExpiry) Scan(value interface{}) error {
*e = MessageExpiry(value.(string))
return nil
}
// Value gets value out of MessageExpiry column
func (e MessageExpiry) Value() (driver.Value, error) {
return string(e), nil
}
// User holds user data
type User struct {
Base
Username string `gorm:"not null;unique" json:"username"`
Password string `gorm:"not null" json:"password"`
ConfirmPassword string `gorm:"-" json:"confirm_password"`
AsymmetricPrivateKey string `gorm:"not null" json:"asymmetric_private_key"` // Stored encrypted
AsymmetricPublicKey string `gorm:"not null" json:"asymmetric_public_key"`
MessageExpiryDefault MessageExpiry `gorm:"default:no_expiry" json:"message_expiry_default" sql:"type:ENUM('fifteen_min', 'thirty_min', 'one_hour', 'three_hour', 'six_hour', 'twelve_hour', 'one_day', 'three_day')"` // Stored encrypted
}