Introduce group basic federation, event new page and notifications

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

lib/service/rich_media/parsers/twitter_card.ex

@@ -0,0 +1,34 @@
+# 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.TwitterCard do
+  @moduledoc """
+  Module to parse Twitter tags data in HTML pages
+  """
+  alias Mobilizon.Service.RichMedia.Parsers.MetaTagsParser
+  require Logger
+
+  @spec parse(String.t(), map()) :: {:ok, map()} | {:error, String.t()}
+  def parse(html, data) do
+    Logger.debug("Using Twitter card parser")
+
+    res =
+      data
+      |> parse_name_attrs(html)
+      |> parse_property_attrs(html)
+
+    Logger.debug("Data found with Twitter card parser")
+    Logger.debug(inspect(res))
+    res
+  end
+
+  defp parse_name_attrs(data, html) do
+    MetaTagsParser.parse(html, data, "twitter", %{}, "name")
+  end
+
+  defp parse_property_attrs({_, data}, html) do
+    MetaTagsParser.parse(html, data, "twitter", "No twitter card metadata found", "property")
+  end
+end