Skirda/sharedutils
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reduce validation code and improve algorithm

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denver 2023-03-28 01:26:29 +03:00
parent cf26a112f2
commit e17b938ef2
1 changed files with 16 additions and 52 deletions
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62
osutils/data.go
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@ -10,60 +10,24 @@ func UuidValidate(uuid string) error {
return errors.New("uuid length not valid")
}
// validate first 8 octets
for i := 0; i < 8; i++ {
if !(unicode.IsLetter(rune(uuid[i])) || unicode.IsDigit(rune(uuid[i]))) && uuid[i] == '-' {
return errors.New("uuid first 8 octets not valid")
}
}
// validate separator
if uuid[8] != '-' {
for i, r := range uuid {
switch i {
case 8, 13, 18, 23:
if r != '-' {
return errors.New("uuid separator not valid")
}
// validate second 4 octets
for i := 9; i < 13; i++ {
if !(unicode.IsLetter(rune(uuid[i])) || unicode.IsDigit(rune(uuid[i]))) && uuid[i] == '-' {
return errors.New("uuid second 4 octets not valid")
break
default:
if !isLetter(r) && !unicode.IsDigit(r) {
return errors.Errorf("uuid char on %i not valid", i)
}
}
// validate separator
if uuid[13] != '-' {
return errors.New("uuid separator not valid")
}
// validate third 4 octets
for i := 14; i < 18; i++ {
if !(unicode.IsLetter(rune(uuid[i])) || unicode.IsDigit(rune(uuid[i]))) && uuid[i] == '-' {
return errors.New("uuid third 4 octets not valid")
}
}
// validate separator
if uuid[18] != '-' {
return errors.New("uuid separator not valid")
}
// validate fourth 4 octets
for i := 19; i < 23; i++ {
if !(unicode.IsLetter(rune(uuid[i])) || unicode.IsDigit(rune(uuid[i]))) && uuid[i] == '-' {
return errors.New("uuid fourth 4 octets not valid")
}
}
// validate separator
if uuid[23] != '-' {
return errors.New("uuid separator not valid")
}
// validate fourth 4 octets
for i := 24; i < 36; i++ {
if !(unicode.IsLetter(rune(uuid[i])) || unicode.IsDigit(rune(uuid[i]))) && uuid[i] == '-' {
return errors.New("uuid fifth 12 octets not valid")
}
}
return nil
}
func isLetter(r rune) bool {
l := unicode.ToLower(r)
return (l >= 'a' && l <= 'z')
}