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jfa-go/pwval.go

69 lines
1.5 KiB

package main
import (
"fmt"
"strings"
"unicode"
)
type Validator struct {
minLength, upper, lower, number, special int
criteria ValidatorConf
specialChars []rune
}
type ValidatorConf map[string]int
func (vd *Validator) init(criteria ValidatorConf) {
vd.specialChars = []rune{'[', '@', '_', '!', '#', '$', '%', '^', '&', '*', '(', ')', '<', '>', '?', '/', '\\', '|', '}', '{', '~', ':', ']'}
vd.criteria = criteria
}
func (vd *Validator) validate(password string) map[string]bool {
count := map[string]int{}
for key, _ := range vd.criteria {
count[key] = 0
}
for _, c := range password {
count["characters"] += 1
if unicode.IsUpper(c) {
count["uppercase characters"] += 1
} else if unicode.IsLower(c) {
count["lowercase characters"] += 1
} else if unicode.IsNumber(c) {
count["numbers"] += 1
} else {
for _, s := range vd.specialChars {
if c == s {
count["special characters"] += 1
}
}
}
}
results := map[string]bool{}
for criterion, num := range count {
if num < vd.criteria[criterion] {
results[criterion] = false
} else {
results[criterion] = true
}
}
return results
}
func (vd *Validator) getCriteria() map[string]string {
lines := map[string]string{}
for criterion, min := range vd.criteria {
if min > 0 {
text := fmt.Sprintf("Must have at least %d ", min)
if min == 1 {
text += strings.TrimSuffix(criterion, "s")
} else {
text += criterion
}
lines[criterion] = text
}
}
return lines
}