fix: Use cowboy callbacks io vhost_or_not_found

Issue rabbitmq#10901

deps/rabbitmq_management/src/rabbit_mgmt_util.erl

@@ -10,7 +10,7 @@
 %% TODO sort all this out; maybe there's scope for rabbit_mgmt_request?
 
 -export([is_authorized/2, is_authorized_admin/2, is_authorized_admin/4,
-         is_authorized_admin/3, vhost/1, vhost_or_not_found/2, vhost_from_headers/1]).
+         is_authorized_admin/3, vhost/1, vhost_from_headers/1]).
 -export([is_authorized_vhost/2, is_authorized_user/3,
          is_authorized_user/4, is_authorized_user/5,
          is_authorized_monitor/2, is_authorized_policies/2,
@@ -210,12 +210,6 @@ vhost_from_headers(ReqData) ->
 vhost(ReqData) ->
     rabbit_web_dispatch_access_control:vhost(ReqData).
 
-vhost_or_not_found(ReqData, Context) ->
-    case rabbit_web_dispatch_access_control:vhost(ReqData) of
-        not_found -> not_found(<<"virtual host not found">>, ReqData, Context);
-        VHost -> VHost
-    end.
-
 user(ReqData) ->
   case id(user, ReqData) of
     none     -> not_found;

deps/rabbitmq_management/src/rabbit_mgmt_wm_queue_get.erl

@@ -9,7 +9,7 @@
 
 -export([init/2, resource_exists/2, is_authorized/2,
   allowed_methods/2, accept_content/2, content_types_provided/2,
-  content_types_accepted/2]).
+  content_types_accepted/2, allow_missing_post/2]).
 -export([variances/2]).
 
 -include_lib("rabbitmq_management_agent/include/rabbit_mgmt_records.hrl").
@@ -35,14 +35,17 @@ resource_exists(ReqData, Context) ->
          _         -> true
      end, ReqData, Context}.
 
+allow_missing_post(Req, Context) ->
+    {false, Req, Context}.
+
 content_types_accepted(ReqData, Context) ->
    {[{'*', accept_content}], ReqData, Context}.
 
 accept_content(ReqData, Context) ->
     rabbit_mgmt_util:post_respond(do_it(ReqData, Context)).
 
 do_it(ReqData0, Context) ->
-    VHost = rabbit_mgmt_util:vhost_or_not_found(ReqData0, Context),
+    VHost = rabbit_mgmt_util:vhost(ReqData0),
     Q = rabbit_mgmt_util:id(queue, ReqData0),
     rabbit_mgmt_util:with_decode(
       [ackmode, count, encoding], ReqData0, Context,