33 lines
650 B
Go
33 lines
650 B
Go
package main
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import (
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"encoding/json"
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"net/http"
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"os"
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)
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func GetIP(r *http.Request) string {
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forwarded := r.Header.Get("X-FORWARDED-FOR")
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if forwarded != "" {
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return forwarded
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}
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return r.RemoteAddr
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}
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func main() {
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http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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w.Write([]byte(GetIP(r)))
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})
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http.HandleFunc("/json", func(w http.ResponseWriter, r *http.Request) {
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w.Header().Add("Content-Type", "application/json")
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resp, _ := json.Marshal(map[string]string{
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"ip": GetIP(r),
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})
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w.Write(resp)
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})
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listen := ":8000"
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os.Stdout.Write([]byte("Listening on " + listen))
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http.ListenAndServe(listen, nil)
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}
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