/
main.go
49 lines (45 loc) · 893 Bytes
/
main.go
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package main
import (
"http"
"io"
"log"
// "fmt"
"net"
)
func ProxyServer(w http.ResponseWriter, req *http.Request) {
log.Printf("%#v", req)
addr, err := net.ResolveIPAddr(req.URL.Host)
if err != nil {
io.WriteString(w, err.String())
return
}
conn, err := net.DialTCP("tcp4", nil, &net.TCPAddr{ IP: addr.IP, Port: 80} )
if err != nil {
io.WriteString(w, err.String())
return
}
defer conn.Close()
client := http.NewClientConn(conn, nil)
err = client.Write(req)
if err != nil {
io.WriteString(w, err.String())
return
}
resp, err := client.Read()
if err != nil {
io.WriteString(w, err.String())
return
}
for k,v := range resp.Header {
w.SetHeader(k, v)
}
io.Copy(w, resp.Body)
w.Flush()
}
func main() {
http.HandleFunc("/", ProxyServer)
err := http.ListenAndServe(":8123", nil)
if err != nil {
log.Exit("ListenAndServe: ", err.String())
}
}