Consolidate construction of Rich Media Parser HTTP requests

lib/pleroma/web/rich_media/helpers.ex

@@ -9,6 +9,11 @@ defmodule Pleroma.Web.RichMedia.Helpers do
   alias Pleroma.Object
   alias Pleroma.Web.RichMedia.Parser
 
+  @rich_media_options [
+    pool: :media,
+    max_body: 2_000_000
+  ]
+
   @spec validate_page_url(URI.t() | binary()) :: :ok | :error
   defp validate_page_url(page_url) when is_binary(page_url) do
     validate_tld = Pleroma.Config.get([Pleroma.Formatter, :validate_tld])
@@ -77,4 +82,20 @@ def perform(:fetch, %Activity{} = activity) do
     fetch_data_for_activity(activity)
     :ok
   end
+
+  def rich_media_get(url) do
+    headers = [{"user-agent", Pleroma.Application.user_agent() <> "; Bot"}]
+
+    options =
+      if Application.get_env(:tesla, :adapter) == Tesla.Adapter.Hackney do
+        Keyword.merge(@rich_media_options,
+          recv_timeout: 2_000,
+          with_body: true
+        )
+      else
+        @rich_media_options
+      end
+
+    Pleroma.HTTP.get(url, headers, options)
+  end
 end

lib/pleroma/web/rich_media/parser.ex

@@ -3,11 +3,6 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.RichMedia.Parser do
-  @options [
-    pool: :media,
-    max_body: 2_000_000
-  ]
-
   defp parsers do
     Pleroma.Config.get([:rich_media, :parsers])
   end
@@ -75,21 +70,8 @@ defp get_ttl_from_image(data, url) do
   end
 
   defp parse_url(url) do
-    opts =
-      if Application.get_env(:tesla, :adapter) == Tesla.Adapter.Hackney do
-        Keyword.merge(@options,
-          recv_timeout: 2_000,
-          with_body: true
-        )
-      else
-        @options
-      end
-
     try do
-      rich_media_agent = Pleroma.Application.user_agent() <> "; Bot"
-
-      {:ok, %Tesla.Env{body: html}} =
-        Pleroma.HTTP.get(url, [{"user-agent", rich_media_agent}], adapter: opts)
+      {:ok, %Tesla.Env{body: html}} = Pleroma.Web.RichMedia.Helpers.rich_media_get(url)
 
       html
       |> parse_html()

lib/pleroma/web/rich_media/parsers/oembed_parser.ex

@@ -22,7 +22,7 @@ defp get_oembed_url([{"link", attributes, _children} | _]) do
   end
 
   defp get_oembed_data(url) do
-    with {:ok, %Tesla.Env{body: json}} <- Pleroma.HTTP.get(url, [], adapter: [pool: :media]) do
+    with {:ok, %Tesla.Env{body: json}} <- Pleroma.Web.RichMedia.Helpers.rich_media_get(url) do
       Jason.decode(json)
     end
   end