/
unix.go
76 lines (65 loc) · 1.3 KB
/
unix.go
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package main
import (
"log"
"net/http"
"net/http/httputil"
"net/url"
"strings"
"net"
"io"
)
type UnixHandler struct {
path string
}
func (h *UnixHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
conn, err := net.Dial("unix", h.path)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
log.Println(err)
return
}
c := httputil.NewClientConn(conn, nil)
defer c.Close()
res, err := c.Do(r)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
log.Println(err)
return
}
defer res.Body.Close()
for i, r := range res.Header {
for _, s := range r {
w.Header().Add(i, s)
}
}
if _, err := io.Copy(w, res.Body); err != nil {
log.Println(err)
}
}
func tcpHandler(e string) http.Handler {
u, err := url.Parse(e)
if err != nil {
log.Fatal(err)
}
return httputil.NewSingleHostReverseProxy(u)
}
func unixHandler(e string) http.Handler {
return &UnixHandler{e}
}
func handlerAPI(sock string) http.Handler {
mux := http.NewServeMux()
var h http.Handler
if strings.Contains(sock, "http") {
h = tcpHandler(sock)
} else {
h = unixHandler(sock)
}
mux.Handle("/", http.StripPrefix("", h))
return mux
}
func unixSock(sock string) {
handler := handlerAPI(sock)
if err := http.ListenAndServe("127.0.0.1:1234", handler); err != nil {
log.Fatal(err)
}
}