mirror of https://github.com/gin-gonic/gin.git
42 lines
777 B
Go
42 lines
777 B
Go
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package utils
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import (
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"net"
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)
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func parseIP(ip string) (net.IP, error) {
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parsedIP := net.ParseIP(ip)
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if ipv4 := parsedIP.To4(); ipv4 != nil {
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return ipv4, nil
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}
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if parsedIP != nil{
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return parsedIP, nil
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}
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return nil, &net.ParseError{Type: "IP address", Text: ip}
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}
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func MakeTrustIP(trustedIP string) (string, error) {
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ip, err := parseIP(trustedIP)
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if err != nil {
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return "", err
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}
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var mapRenderIP = map [int]func(trustIP string) string{
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net.IPv4len: func(trustIP string) string{
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return trustIP + "/32"
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},
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net.IPv6len: func(trustIP string) string{
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return trustIP + "/32"
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},
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}
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fn, isExistKey := mapRenderIP[len(ip)]
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if isExistKey != true{
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return "", &net.ParseError{Type: "IP address", Text: trustedIP}
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}
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return fn(trustedIP), nil
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}
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