add delete post route

app/routes/users.py

@@ -24,6 +24,19 @@ def redirect_if_logged_in(destination='topics.all_topics'):
         return wrapper
     return decorator
 
+def redirect_to_own(view_func):
+    @wraps(view_func)
+    def wrapper(username, *args, **kwargs):
+        user = get_active_user()
+        if username.lower() != user.username:
+            view_args = dict(request.view_args)
+            view_args.pop('username', None)
+            new_args = {**view_args, 'username': user.username}
+            return redirect(url_for(request.endpoint, **new_args))
+        return view_func(username, *args, **kwargs)
+    return wrapper
+
+
 @bp.get('/log-in/')
 @redirect_if_logged_in()
 def log_in():
@@ -166,16 +179,22 @@ def comments(username):
     return 'stub'
 
 @bp.get('/<username>/settings/')
+@login_required
+@redirect_to_own
 def settings(username):
     username = username.lower()
     return 'stub'
 
 @bp.get('/<username>/inbox/')
+@login_required
+@redirect_to_own
 def inbox(username):
     username = username.lower()
     return 'stub'
 
 @bp.get('/<username>/bookmarks/')
+@login_required
+@redirect_to_own
 def bookmarks(username):
     username = username.lower()
     return 'stub'