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jfa-go/pwval.go

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package main
import (
"unicode"
)
// Validator allows for validation of passwords.
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type Validator struct {
minLength, upper, lower, number, special int
criteria ValidatorConf
}
type ValidatorConf map[string]int
func (vd *Validator) init(criteria ValidatorConf) {
vd.criteria = criteria
}
// This isn't used, its for swagger
type PasswordValidation struct {
Characters bool `json:"length,omitempty"` // Number of characters
Lowercase bool `json:"lowercase,omitempty"` // Number of lowercase characters
Uppercase bool `json:"uppercase,omitempty"` // Number of uppercase characters
Numbers bool `json:"number,omitempty"` // Number of numbers
Specials bool `json:"special,omitempty"` // Number of special characters
}
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func (vd *Validator) validate(password string) map[string]bool {
count := map[string]int{}
for key := range vd.criteria {
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count[key] = 0
}
for _, c := range password {
count["length"] += 1
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if unicode.IsUpper(c) {
count["uppercase"] += 1
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} else if unicode.IsLower(c) {
count["lowercase"] += 1
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} else if unicode.IsNumber(c) {
count["number"] += 1
} else if unicode.ToUpper(c) == unicode.ToLower(c) {
count["special"] += 1
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}
}
results := map[string]bool{}
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for criterion, num := range count {
if num < vd.criteria[criterion] {
results[criterion] = false
} else {
results[criterion] = true
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}
}
return results
}
func (vd *Validator) getCriteria() ValidatorConf {
criteria := ValidatorConf{}
for key, num := range vd.criteria {
if num != 0 {
criteria[key] = num
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}
}
return criteria
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}