Allow the Remote Fetcher to attempt fetching an unreachable instance

changelog.d/handle_object_fetch_failures2.change

@@ -1 +0,0 @@
-Skip fetching objects from unreachable instances.

lib/pleroma/workers/remote_fetcher_worker.ex

@@ -3,14 +3,12 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Workers.RemoteFetcherWorker do
-  alias Pleroma.Instances
   alias Pleroma.Object.Fetcher
 
   use Pleroma.Workers.WorkerHelper, queue: "remote_fetcher"
 
   @impl Oban.Worker
   def perform(%Job{args: %{"op" => "fetch_remote", "id" => id} = args}) do
-    if Instances.reachable?(id) do
     case Fetcher.fetch_object_from_id(id, depth: args["depth"]) do
       {:ok, _object} ->
         :ok
@@ -27,9 +25,6 @@ defmodule Pleroma.Workers.RemoteFetcherWorker do
       _ ->
         :error
     end
-    else
-      {:discard, "Unreachable instance"}
-    end
   end
 
   @impl Oban.Worker

test/pleroma/workers/remote_fetcher_worker_test.exs

@@ -6,13 +6,11 @@ defmodule Pleroma.Workers.RemoteFetcherWorkerTest do
   use Pleroma.DataCase
   use Oban.Testing, repo: Pleroma.Repo
 
-  alias Pleroma.Instances
   alias Pleroma.Workers.RemoteFetcherWorker
 
   @deleted_object_one "https://deleted-404.example.com/"
   @deleted_object_two "https://deleted-410.example.com/"
   @unauthorized_object "https://unauthorized.example.com/"
-  @unreachable_object "https://unreachable.example.com/"
   @depth_object "https://depth.example.com/"
 
   describe "RemoteFetcherWorker" do
@@ -59,17 +57,6 @@ defmodule Pleroma.Workers.RemoteFetcherWorkerTest do
                })
     end
 
-    test "does not fetch an unreachable instance" do
-      Instances.set_consistently_unreachable(@unreachable_object)
-
-      refute Instances.reachable?(@unreachable_object)
-
-      assert {:discard, _} =
-               RemoteFetcherWorker.perform(%Oban.Job{
-                 args: %{"op" => "fetch_remote", "id" => @unreachable_object}
-               })
-    end
-
     test "does not requeue an object that exceeded depth" do
       clear_config([:instance, :federation_incoming_replies_max_depth], 0)