moving some logic to tesla adapter

- checking original inside gun adapter
- flushing streams on max_body error

lib/pleroma/http/adapter_helper/gun.ex

@@ -26,7 +26,6 @@ defmodule Pleroma.HTTP.AdapterHelper.Gun do
 
     @defaults
     |> Keyword.merge(Pleroma.Config.get([:http, :adapter], []))
-    |> add_original(uri)
     |> add_scheme_opts(uri)
     |> AdapterHelper.maybe_add_proxy(AdapterHelper.format_proxy(proxy))
     |> maybe_get_conn(uri, connection_opts)
@@ -42,17 +41,12 @@ defmodule Pleroma.HTTP.AdapterHelper.Gun do
     :ok
   end
 
-  defp add_original(opts, %URI{host: host, port: port}) do
-    formatted_host = format_host(host)
-
-    Keyword.put(opts, :original, "#{formatted_host}:#{port}")
-  end
-
   defp add_scheme_opts(opts, %URI{scheme: "http"}), do: opts
 
-  defp add_scheme_opts(opts, %URI{scheme: "https", host: host, port: port}) do
+  defp add_scheme_opts(opts, %URI{scheme: "https", host: host}) do
     adapter_opts = [
       certificates_verification: true,
+      transport: :tls,
       tls_opts: [
         verify: :verify_peer,
         cacertfile: CAStore.file_path(),
@@ -63,13 +57,6 @@ defmodule Pleroma.HTTP.AdapterHelper.Gun do
       ]
     ]
 
-    adapter_opts =
-      if port != 443 do
-        Keyword.put(adapter_opts, :transport, :tls)
-      else
-        adapter_opts
-      end
-
     Keyword.merge(opts, adapter_opts)
   end
 

lib/pleroma/pool/request.ex

@@ -28,12 +28,7 @@ defmodule Pleroma.Pool.Request do
   end
 
   @impl true
-  def handle_info({:gun_data, _conn, stream, _, _}, state) do
-    # in some cases if we reuse conn and got {:error, :body_too_large}
-    # gun continues to send messages to this process,
-    # so we flush messages for this request
-    :ok = :gun.flush(stream)
-
+  def handle_info({:gun_data, _conn, _stream, _, _}, state) do
     {:noreply, state}
   end
 
@@ -49,8 +44,7 @@ defmodule Pleroma.Pool.Request do
   end
 
   @impl true
-  def handle_info({:gun_error, _conn, stream, _error}, state) do
-    :ok = :gun.flush(stream)
+  def handle_info({:gun_error, _conn, _stream, _error}, state) do
     {:noreply, state}
   end