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35 lines
544 B
35 lines
544 B
package util
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import (
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"errors"
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"net"
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"net/http"
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"strings"
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)
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// GetIP returns request real ip.
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func GetIP(r *http.Request) (string, error) {
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ip := r.Header.Get("X-Real-IP")
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if net.ParseIP(ip) != nil {
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return ip, nil
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}
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ip = r.Header.Get("X-Forward-For")
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for _, i := range strings.Split(ip, ",") {
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if net.ParseIP(i) != nil {
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return i, nil
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}
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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 "", err
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}
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if net.ParseIP(ip) != nil {
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return ip, nil
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}
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return "", errors.New("no valid ip found")
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}
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