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Merge ec789274b1f5093f956d71d05b1cf88327e925d5 into d3ffc9985281dcf4d3bef604cce4e662b1a327a6

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guoyangzhen 2026-03-17 10:06:32 +09:00 committed by GitHub
commit 8d28cadce5
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1 changed files with 11 additions and 0 deletions
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11
gin.go
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@ -486,6 +486,17 @@ 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 with brackets and/or port: [::1], [::1]:8080, 192.168.1.1:8080
// net.SplitHostPort handles all these cases and strips brackets
if host, _, err := net.SplitHostPort(ipStr); err == nil {
ipStr = host
} else {
// No port present, just strip brackets if any (bare IPv6 like [::1])
ipStr = strings.TrimPrefix(ipStr, "[")
ipStr = strings.TrimSuffix(ipStr, "]")
}
ip := net.ParseIP(ipStr)
if ip == nil {
break