hello proxy

main.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/httputil"
+	"os"
+	"strings"
+	"unicode"
+)
+
+var client = new(http.Client)
+
+func httpHandler(w http.ResponseWriter, r *http.Request) {
+	b, err := httputil.DumpRequest(r, true)
+	if err != nil {
+		fmt.Printf("error dumping request: %s\n", err)
+		return
+	}
+	os.Stdout.Write(b)
+
+	r.RequestURI = ""
+	r.URL.Scheme = strings.Map(unicode.ToLower, r.URL.Scheme)
+
+	res, err := client.Do(r)
+	if err != nil {
+		fmt.Printf("error forwarding request: %s\n", err)
+		return
+	}
+	defer res.Body.Close()
+
+	for k, v := range res.Header {
+		w.Header()[k] = v
+	}
+	w.WriteHeader(res.StatusCode)
+
+	if _, err := io.Copy(w, res.Body); err != nil {
+		fmt.Printf("error copying body: %s\n", err)
+	}
+}
+
+func main() {
+	http.HandleFunc("/", httpHandler)
+	http.ListenAndServe(":8080", nil)
+}