Make start on session management

internal/conf/conf.go

@@ -54,11 +54,12 @@ func (asset *Asset) fetchIfNotExists(staticPath string) {
 }
 
 type Config struct {
-	Address   string
-	Protocol  string
-	Extension string
-	NotesDir  string
-	LogAccess bool
+	Address    string
+	Protocol   string
+	Extension  string
+	NotesDir   string
+	LogAccess  bool
+	Production bool
 }
 
 var (

internal/middleware/session.go

@@ -0,0 +1,34 @@
+// Middleware to deal with sessions
+package middleware
+
+import (
+	"context"
+	"log"
+	"net/http"
+)
+
+func SessionMiddleware(cache map[string]string, next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		sessionCookie, err := r.Cookie("id")
+		// No session yet
+		if err != nil {
+			http.Redirect(w, r, "/login/", http.StatusUnauthorized)
+			return
+		}
+
+		user, ok := cache[sessionCookie.Value]
+
+		// Session expired
+		if !ok {
+			http.Redirect(w, r, "/login/", http.StatusUnauthorized)
+			return
+		}
+
+		log.Printf("User is %s", user)
+
+		ctx := r.Context()
+		ctx = context.WithValue(ctx, "user", user)
+
+		next.ServeHTTP(w, r.WithContext(ctx))
+	})
+}