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util.go
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util.go
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package main
import (
"fmt"
"log"
"unicode"
)
func String(i interface{}) (string, bool) {
if i == nil {
return "", false
}
if str, ok := i.(string); ok {
return str, true
} else {
return "", false
}
}
func IsCharLowerCase(char rune) bool {
return unicode.IsLower(char)
}
func IsCharUpperCase(char rune) bool {
return unicode.IsUpper(char)
}
func IsCharDigit(char rune) bool {
return unicode.IsNumber(char)
}
// Password must:
// - At least one upper case english letter
// - At least one lower case english letter
// - At least one digit
// - Minimum 8 in length
// - Maximum 20 in length
func IsValidPassword(s string) bool {
if len(s) < 8 || len(s) > 20 {
return false
}
var (
runeStr = []rune(s)
hasUpper = false
hasLower = false
hasDigit = false
)
for i := 0; i < len(runeStr); i++ {
if !hasUpper && IsCharUpperCase(runeStr[i]) {
hasUpper = true
} else if !hasLower && IsCharLowerCase(runeStr[i]) {
hasLower = true
} else if !hasDigit && IsCharDigit(runeStr[i]) {
hasDigit = true
}
if hasUpper && hasLower && hasDigit {
return true
}
}
return false
}
func Debug(i ...interface{}) {
log.Println("[DEBUG] ::", fmt.Sprint(i...))
}