git.squeep.com Git - akkoma/blob - lib/pleroma/web/metadata/twitter_card.ex

   1 defmodule Pleroma.Web.Metadata.Providers.TwitterCard do
   2   def build_tags(%{activity: activity}) do
   3     if Enum.any?(activity.data["object"]["tag"], fn tag -> tag == "nsfw" end) or
   4          activity.data["object"]["attachment"] == [] do
   5       build_tags(nil)
   6     else
   7       case find_first_acceptable_media_type(activity) do
   8         "image" ->
   9           [{:meta, [property: "twitter:card", content: "summary_large_image"], []}]
  10
  11         "audio" ->
  12           [{:meta, [property: "twitter:card", content: "player"], []}]
  13
  14         "video" ->
  15           [{:meta, [property: "twitter:card", content: "player"], []}]
  16
  17         _ ->
  18           build_tags(nil)
  19       end
  20     end
  21   end
  22
  23   def build_tags(_) do
  24     [{:meta, [property: "twitter:card", content: "summary"], []}]
  25   end
  26
  27   def find_first_acceptable_media_type(%{data: %{"object" => %{"attachment" => attachment}}}) do
  28     Enum.find_value(attachment, fn attachment ->
  29       Enum.find_value(attachment["url"], fn url ->
  30         Enum.find(["image", "audio", "video"], fn media_type ->
  31           String.starts_with?(url["mediaType"], media_type)
  32         end)
  33       end)
  34     end)
  35   end
  36 end