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								package configutils
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								import (
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									"net"
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									"strings"
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								)
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											2022-06-28 20:26:44 +08:00
										 
									 
								 
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								// IsIPv4 检查是否为IPv4
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								func IsIPv4(netIP net.IP) bool {
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									if len(netIP) == 0 {
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										return false
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									}
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									return netIP.To4() != nil
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								}
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								// IsIPv6 检查是否为IPv6
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								func IsIPv6(netIP net.IP) bool {
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									if len(netIP) == 0 {
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										return false
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									}
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									return netIP.To4() == nil && netIP.To16() != nil
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								}
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								// IPVersion 获取IP版本号
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								func IPVersion(netIP net.IP) int {
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									if len(netIP) == 0 {
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										return 0
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									}
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											2022-06-28 20:26:44 +08:00
										 
									 
								 
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									if netIP.To4() != nil {
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										return 4
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									}
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											2022-06-28 20:26:44 +08:00
										 
									 
								 
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									if netIP.To16() != nil {
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										return 6
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									}
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									return 0
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								}
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											2021-07-20 10:55:52 +08:00
										 
									 
								 
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								// QuoteIP 为IPv6加上括号
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								func QuoteIP(ip string) string {
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									if len(ip) == 0 {
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										return ip
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									}
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									if !strings.Contains(ip, ":") {
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										return ip
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									}
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									if ip[0] != '[' {
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										return "[" + ip + "]"
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									}
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									return ip
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								}
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