new feature - include an embedded http server for uploaded code

http.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+
+	"github.com/gorilla/handlers"
+	"github.com/spf13/viper"
+)
+
+func serveHttp() {
+	files := http.FileServer(http.Dir(viper.GetString("output")))
+	http.Handle("/", disableDirectoryListing(files))
+
+	log.Printf("Starting embedded http server on port %d\n", viper.GetInt("httpport"))
+	http.ListenAndServe(fmt.Sprintf(":%d", viper.GetInt("httpport")), handlers.LoggingHandler(os.Stdout, http.DefaultServeMux))
+}
+
+func disableDirectoryListing(h http.Handler) http.HandlerFunc {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if strings.HasSuffix(r.URL.Path, "/") {
+			http.NotFound(w, r)
+			return
+		}
+		h.ServeHTTP(w, r)
+	})
+}