mchess-server/utils/passphrase.go

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2023-06-28 17:51:36 +00:00
package utils
import (
"strings"
"github.com/tjarratt/babble"
)
type Passphrase string
func NewPassphrase() Passphrase {
var phrase string
var retries int
var word string
var words int = 2
//TODO make sure passphrases are unique
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for words > 0 {
retries = 20
for {
word = getCleanWord()
if isAccecpable(word) {
phrase = phrase + word + " "
break
}
if retries == 1 { //this is our last try, we take any word
phrase = phrase + word + " "
}
retries -= 1
}
words -= 1
}
return Passphrase(strings.TrimSpace(phrase))
}
func (p Passphrase) String() string {
return string(p)
}
func isAccecpable(s string) bool {
l := len(s)
if l > 8 || l < 3 {
return false
}
for _, rune := range s {
if !isEnglishLetter(rune) {
return false
}
}
return true
}
func isProfanity(s string) bool {
contains := []string{
"nigg",
"fag",
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}
startsWith := []string{
"spic",
"chin",
"cunt",
}
for _, word := range contains {
if strings.Contains(s, word) {
return true
}
}
for _, word := range startsWith {
if strings.HasPrefix(s, word) {
return true
}
}
return false
}
func isEnglishLetter(r rune) bool {
if (r < 'a' || r > 'z') && (r < 'A' || r > 'Z') {
return false
}
return true
}
func getCleanWord() string {
var word string
babbler := babble.NewBabbler()
babbler.Count = 1
for {
word = babbler.Babble()
if !isProfanity(word) {
return word
}
}
}