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package ctfc
import (
"os"
"regexp"
"gitlab.com/Syndamia/ctfc/go-src/folderPaths"
)
var SpecialCharacters = []rune{'!', '@', '#', '$', '%', '^', '&', '*'}
// Inclusive minimum and maximum
func stringValidLength(min int, max int, value string) bool {
return len(value) >= min && len(value) <= max
}
func stringValidCharacters(value string, letters bool, numbers bool, special ...rune) bool {
expr := "^["
if letters {
expr += "A-z"
}
if numbers {
expr += "0-9"
}
for _, v := range special {
expr += string(v)
}
expr += "]+$"
return regexp.MustCompile(expr).MatchString(value)
}
func stringValidRuneAmount(value string, runeStart rune, runeEnd rune, minAmount int) bool {
var sum int
for _, v := range value {
if v >= runeStart && v <= runeEnd {
sum++
}
}
return sum >= minAmount
}
func atLeastOneLetter(value string) bool {
return stringValidRuneAmount(value, 'A', 'Z', 1) || stringValidRuneAmount(value, 'a', 'z', 1)
}
// Between 2 and 40 characters (A-z, 0-9, ., *, _, -, at least one letter)
func stringValidUsername(value string) bool {
return stringValidLength(2, 40, value) &&
stringValidCharacters(value, true, true, '.', '*', '_', '-') &&
atLeastOneLetter(value)
}
// Between 5 and 40 characters (any character, but at least one number)
func stringValidPassword(value string) bool {
return stringValidLength(5, 40, value) &&
stringValidCharacters(value, true, true, SpecialCharacters...) &&
stringValidRuneAmount(value, '0', '9', 1)
}
// Between 2 and 60 characters (A-z, spaces, ', -)
func stringValidName(value string) bool {
return stringValidLength(2, 60, value) &&
stringValidCharacters(value, true, false, ' ', '\'', '-')
}
// Between 2 and 20 characters (A-z, 0-9, spaces, \_, -, at least one letter)
func stringValidChatName(value string) bool {
return stringValidLength(2, 20, value) &&
stringValidCharacters(value, true, true, ' ', '_', '-') &&
atLeastOneLetter(value)
}
// Between 0 and 30 characters (any character)
func stringValidChatDesc(value string) bool {
return stringValidLength(0, 30, value)
}
func usernameExists(username string) bool {
_, err := os.Stat(folderPaths.FileAtUsersFolder(username))
return err == nil
}
func chatNameExists(name string) bool {
_, err := os.Stat(folderPaths.FileAtChatsFolder(name))
return err == nil
}
|
