Introduce group basic federation, event new page and notifications

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/service/rich_media/parsers/ogp.ex

@@ -0,0 +1,36 @@
+# Portions of this file are derived from Pleroma:
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Mobilizon.Service.RichMedia.Parsers.OGP do
+  @moduledoc """
+  Module to parse OpenGraph data in HTML pages
+  """
+  require Logger
+  alias Mobilizon.Service.RichMedia.Parsers.MetaTagsParser
+
+  def parse(html, data) do
+    Logger.debug("Using OpenGraph card parser")
+
+    with {:ok, data} <-
+           MetaTagsParser.parse(
+             html,
+             data,
+             "og",
+             "No OGP metadata found",
+             "property"
+           ) do
+      data = transform_tags(data)
+      Logger.debug("Data found with OpenGraph card parser")
+      {:ok, data}
+    end
+  end
+
+  defp transform_tags(data) do
+    data
+    |> Map.put(:image_remote_url, Map.get(data, :image))
+    |> Map.put(:width, Map.get(data, :"image:width"))
+    |> Map.put(:height, Map.get(data, :"image:height"))
+  end
+end