38 lines
762 B
Go
38 lines
762 B
Go
package authn
|
|
|
|
import (
|
|
"errors"
|
|
"strings"
|
|
|
|
"github.com/photoprism/photoprism/pkg/clean"
|
|
"github.com/photoprism/photoprism/pkg/rnd"
|
|
"github.com/photoprism/photoprism/pkg/txt"
|
|
)
|
|
|
|
var (
|
|
ErrEmpty = errors.New("empty")
|
|
ErrTooLong = errors.New("too long")
|
|
ErrInvalid = errors.New("invalid")
|
|
ErrReserved = errors.New("reserved")
|
|
)
|
|
|
|
// Username checks if the name provided is invalid or reserved.
|
|
func Username(name string) (sanitized string, err error) {
|
|
if name == "" {
|
|
return "", ErrEmpty
|
|
} else if len(name) > txt.ClipEmail {
|
|
return "", ErrTooLong
|
|
}
|
|
|
|
s := clean.Username(name)
|
|
|
|
switch {
|
|
case s == "" || !strings.EqualFold(s, name):
|
|
return s, ErrInvalid
|
|
case rnd.IsUID(s, 'c'), s == "visitor":
|
|
return s, ErrReserved
|
|
}
|
|
|
|
return s, err
|
|
}
|