dropped fiber for std http + gorilla websocket

Session serialization will use gob encoding instead of json.
Binary size will likely be reduced.
General backend code refactoring.

server/rpc/handlers.go

@@ -0,0 +1,53 @@
+package rpc
+
+import (
+	"io"
+	"net/http"
+
+	"github.com/gorilla/websocket"
+)
+
+var upgrader websocket.Upgrader
+
+func WebSocket(w http.ResponseWriter, r *http.Request) {
+	c, err := upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	defer c.Close()
+
+	// notify client that conn is open and ok
+	c.WriteJSON(struct{ Status string }{Status: "connected"})
+
+	for {
+		mtype, reader, err := c.NextReader()
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			break
+		}
+
+		res := newRequest(reader).Call()
+
+		writer, err := c.NextWriter(mtype)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			break
+		}
+
+		io.Copy(writer, res)
+	}
+}
+
+func Post(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+
+	res := newRequest(r.Body).Call()
+	_, err := io.Copy(w, res)
+
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+}