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messenger_display_name.go
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/
messenger_display_name.go
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package protocol
import (
"errors"
"regexp"
"strings"
"github.com/status-im/status-go/protocol/identity/alias"
)
var ErrInvalidDisplayNameRegExp = errors.New("only letters, numbers, underscores and hyphens allowed")
var ErrInvalidDisplayNameEthSuffix = errors.New(`usernames ending with "eth" are not allowed`)
var ErrInvalidDisplayNameNotAllowed = errors.New("name is not allowed")
func ValidateDisplayName(displayName *string) error {
name := strings.TrimSpace(*displayName)
*displayName = name
if name == "" {
return nil
}
// ^[\\w-\\s]{5,24}$ to allow spaces
if match, _ := regexp.MatchString("^[\\w-\\s]{5,24}$", name); !match {
return ErrInvalidDisplayNameRegExp
}
// .eth should not happen due to the regexp above, but let's keep it here in case the regexp is changed in the future
if strings.HasSuffix(name, "_eth") || strings.HasSuffix(name, ".eth") || strings.HasSuffix(name, "-eth") {
return ErrInvalidDisplayNameEthSuffix
}
if alias.IsAlias(name) {
return ErrInvalidDisplayNameNotAllowed
}
return nil
}
func (m *Messenger) SetDisplayName(displayName string) error {
currDisplayName, err := m.settings.DisplayName()
if err != nil {
return err
}
if currDisplayName == displayName {
return nil // Do nothing
}
if err = ValidateDisplayName(&displayName); err != nil {
return err
}
m.account.Name = displayName // We might need to do the same when syncing settings?
err = m.multiAccounts.SaveAccount(*m.account)
if err != nil {
return err
}
err = m.settings.SaveSetting("display-name", displayName)
if err != nil {
return err
}
err = m.resetLastPublishedTimeForChatIdentity()
if err != nil {
return err
}
return m.publishContactCode()
}