# Describe Request Added copyright header to the code. Fixes #112 # Change Type Documentation change.
44 lines
978 B
Go
44 lines
978 B
Go
// Package checker is a Go library for validating user input through struct tags.
|
|
//
|
|
// https://github.com/cinar/checker
|
|
//
|
|
// Copyright 2023 Onur Cinar. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
//
|
|
package checker
|
|
|
|
import (
|
|
"net"
|
|
"reflect"
|
|
)
|
|
|
|
// CheckerIP is the name of the checker.
|
|
const CheckerIP = "ip"
|
|
|
|
// ResultNotIP indicates that the given value is not an IP address.
|
|
const ResultNotIP = "NOT_IP"
|
|
|
|
// IsIP checks if the given value is an IP address.
|
|
func IsIP(value string) Result {
|
|
ip := net.ParseIP(value)
|
|
if ip == nil {
|
|
return ResultNotIP
|
|
}
|
|
|
|
return ResultValid
|
|
}
|
|
|
|
// makeIP makes a checker function for the ip checker.
|
|
func makeIP(_ string) CheckFunc {
|
|
return checkIP
|
|
}
|
|
|
|
// checkIP checks if the given value is an IP address.
|
|
func checkIP(value, _ reflect.Value) Result {
|
|
if value.Kind() != reflect.String {
|
|
panic("string expected")
|
|
}
|
|
|
|
return IsIP(value.String())
|
|
}
|