server: lowercase hostname for Host header check (#5851)
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@ -1071,11 +1071,13 @@ func isLocalIP(ip netip.Addr) bool {
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}
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}
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func allowedHost(host string) bool {
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func allowedHost(host string) bool {
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host = strings.ToLower(host)
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if host == "" || host == "localhost" {
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if host == "" || host == "localhost" {
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return true
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return true
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}
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}
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if hostname, err := os.Hostname(); err == nil && host == hostname {
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if hostname, err := os.Hostname(); err == nil && host == strings.ToLower(hostname) {
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return true
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return true
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}
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}
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