31 lines
645 B
Go
31 lines
645 B
Go
package utils
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import (
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"net"
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"net/http"
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"strings"
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)
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// 注意，相关 ip 获取未做反向代理安全判断，可能导致安全降级
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func GetRemoteIP(r *http.Request) string {
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// 最先取 cloudflare 的头
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if ip := r.Header.Get("CF-Connecting-IP"); ip != "" {
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return ip
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}
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if forwardedFor := r.Header.Get("X-Forwarded-For"); forwardedFor != "" {
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ips := strings.Split(forwardedFor, ",")
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if len(ips) > 0 {
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return strings.TrimSpace(ips[0])
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}
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}
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if realIP := r.Header.Get("X-Real-IP"); realIP != "" {
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return realIP
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}
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ip, _, err := net.SplitHostPort(r.RemoteAddr)
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if err != nil {
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return r.RemoteAddr
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}
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return ip
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}
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