File size: 992 Bytes
8c7ba7b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | package common
import "net"
func IsIP(s string) bool {
ip := net.ParseIP(s)
return ip != nil
}
func ParseIP(s string) net.IP {
return net.ParseIP(s)
}
func IsPrivateIP(ip net.IP) bool {
if ip.IsLoopback() || ip.IsLinkLocalUnicast() || ip.IsLinkLocalMulticast() {
return true
}
private := []net.IPNet{
{IP: net.IPv4(10, 0, 0, 0), Mask: net.CIDRMask(8, 32)},
{IP: net.IPv4(172, 16, 0, 0), Mask: net.CIDRMask(12, 32)},
{IP: net.IPv4(192, 168, 0, 0), Mask: net.CIDRMask(16, 32)},
}
for _, privateNet := range private {
if privateNet.Contains(ip) {
return true
}
}
return false
}
func IsIpInCIDRList(ip net.IP, cidrList []string) bool {
for _, cidr := range cidrList {
_, network, err := net.ParseCIDR(cidr)
if err != nil {
// 尝试作为单个IP处理
if whitelistIP := net.ParseIP(cidr); whitelistIP != nil {
if ip.Equal(whitelistIP) {
return true
}
}
continue
}
if network.Contains(ip) {
return true
}
}
return false
}
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