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Merge 668da512661be305ff9c102e643a89b75d86a1a2 into dcaa4296d111981ffb31ac3eba90bb63e1eb5ab9

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Shirong Lu 2026-08-18 16:30:51 +00:00 committed by GitHub
commit 086310bfa2
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1 changed files with 8 additions and 0 deletions
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8
gin.go
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@ -486,6 +486,14 @@ func (engine *Engine) validateHeader(header string) (clientIP string, valid bool
items := strings.Split(header, ",")
for i := len(items) - 1; i >= 0; i-- {
ipStr := strings.TrimSpace(items[i])
// Handle [IPv6]:port or IPv4:port notation (e.g., [::1]:38792, 192.168.1.1:38792)
if host, _, err := net.SplitHostPort(ipStr); err == nil {
ipStr = host
}
// Strip brackets around bare IPv6 addresses (e.g., [::1] -> ::1)
if len(ipStr) > 0 && ipStr[0] == '[' {
ipStr = strings.Trim(ipStr, "[]")
}
ip := net.ParseIP(ipStr)
if ip == nil {
break