add proxy server for dynamic api endpoint handling and auth

proxy/middleware.go

@@ -0,0 +1,65 @@
+package main
+
+import (
+	"context"
+	"crypto/rand"
+	"encoding/base64"
+	"fmt"
+	"net/http"
+	"time"
+)
+
+func AuthMiddleware(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+
+		cookie, err := r.Cookie("session_cookie")
+		if err != nil || cookie.Value == "" {
+			http.Error(w, "Unauthorized", http.StatusUnauthorized)
+			return
+		}
+
+		user, err := GetUserByCookie(cookie.Value)
+		if err != nil || cookie.Value == "" {
+			http.Error(w, "Unauthorized", http.StatusUnauthorized)
+			return
+		}
+
+		ctx := context.WithValue(r.Context(), "user", user)
+		next.ServeHTTP(w, r.WithContext(ctx))
+
+	})
+}
+
+func CookieMiddleware(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+
+		cookie, err := r.Cookie("session_cookie")
+		if err != nil || cookie.Value == "" {
+
+			newCookie := &http.Cookie{
+				Name:     "session_cookie",
+				Value:    "session_cookie_" + generateRandomString(64),
+				Expires:  time.Now().Add(time.Hour * 10000),
+				HttpOnly: true,
+				Secure:   true,
+				Path:     "/",
+			}
+
+			http.SetCookie(w, newCookie)
+		}
+
+		ctx := context.WithValue(r.Context(), "cookie", cookie.Value)
+		next.ServeHTTP(w, r.WithContext(ctx))
+	})
+}
+
+func generateRandomString(length int) string {
+	bytes := make([]byte, length)
+	_, err := rand.Read(bytes)
+	if err != nil {
+		fmt.Print(err)
+		return "IF_U_SEE_THIS_UR_THE_GOAT"
+	}
+
+	return base64.URLEncoding.EncodeToString(bytes)
+}