mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-23 11:57:18 +00:00
89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
package prompt
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import (
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"errors"
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"strconv"
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"strings"
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"unicode"
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)
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const (
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// Constants for passwords.
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minPasswordLength = 8
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)
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var (
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errIncorrectPhrase = errors.New("input does not match wanted phrase")
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errPasswordWeak = errors.New("password must have at least 8 characters")
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)
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// NotEmpty is a validation function to make sure the input given isn't empty and is valid unicode.
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func NotEmpty(input string) error {
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if input == "" {
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return errors.New("input cannot be empty")
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}
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if !IsValidUnicode(input) {
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return errors.New("not valid unicode")
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}
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return nil
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}
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// ValidateNumber makes sure the entered text is a valid number.
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func ValidateNumber(input string) error {
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_, err := strconv.Atoi(input)
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if err != nil {
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return err
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}
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return nil
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}
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// ValidateConfirmation makes sure the entered text is the user confirming.
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func ValidateConfirmation(input string) error {
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if input != "Y" && input != "y" {
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return errors.New("please confirm the above text")
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}
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return nil
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}
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// ValidateYesOrNo ensures the user input either Y, y or N, n.
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func ValidateYesOrNo(input string) error {
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lowercase := strings.ToLower(input)
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if lowercase != "y" && lowercase != "n" {
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return errors.New("please enter y or n")
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}
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return nil
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}
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// IsValidUnicode checks if an input string is a valid unicode string comprised of only
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// letters, numbers, punctuation, or symbols.
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func IsValidUnicode(input string) bool {
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for _, char := range input {
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if !(unicode.IsLetter(char) ||
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unicode.IsNumber(char) ||
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unicode.IsPunct(char) ||
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unicode.IsSymbol(char) ||
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unicode.IsSpace(char)) {
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return false
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}
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}
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return true
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}
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// ValidatePasswordInput validates a strong password input for new accounts,
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// including a min length, at least 1 number and at least
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// 1 special character.
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func ValidatePasswordInput(input string) error {
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if len(input) < minPasswordLength {
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return errPasswordWeak
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}
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return nil
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}
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// ValidatePhrase checks whether the user input is equal to the wanted phrase. The verification is case sensitive.
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func ValidatePhrase(input, wantedPhrase string) error {
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if strings.TrimSpace(input) != wantedPhrase {
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return errIncorrectPhrase
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}
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return nil
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}
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