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

   1 defmodule Pleroma.Web.Metadata do
   2   alias Phoenix.HTML
   3   alias Pleroma.{Formatter, User}
   4   alias Pleroma.Web.MediaProxy
   5
   6   def build_tags(params) do
   7     if(meta_enabled?(:opengraph), do: opengraph_tags(params), else: [])
   8     |> Enum.map(&to_tag/1)
   9     |> Enum.map(&HTML.safe_to_string/1)
  10     |> Enum.join("\n")
  11   end
  12
  13   def meta_enabled?(type) do
  14     config = Pleroma.Config.get(:metadata, [])
  15     Keyword.get(config, type, false)
  16   end
  17
  18   # opengraph for single status
  19   defp opengraph_tags(%{activity: activity, user: user}) do
  20     with truncated_content = Formatter.truncate(activity.data["object"]["content"]) do
  21       [
  22         {:meta,
  23          [
  24            property: "og:title",
  25            content: "#{user.name} (@#{user.nickname}@#{pleroma_domain()}) post ##{activity.id}"
  26          ], []},
  27         {:meta, [property: "og:url", content: activity.data["id"]], []},
  28         {:meta, [property: "og:description", content: truncated_content], []},
  29         {:meta, [property: "og:image", content: user_avatar_url(user)], []},
  30         {:meta, [property: "og:image:width", content: 120], []},
  31         {:meta, [property: "og:image:height", content: 120], []},
  32         {:meta, [property: "twitter:card", content: "summary"], []}
  33       ]
  34     end
  35   end
  36
  37   # opengraph for user card
  38   defp opengraph_tags(%{user: user}) do
  39     with truncated_bio = Formatter.truncate(user.bio) do
  40       [
  41         {:meta,
  42          [
  43            property: "og:title",
  44            content: "#{user.name} (@#{user.nickname}@#{pleroma_domain()}) profile"
  45          ], []},
  46         {:meta, [property: "og:url", content: User.profile_url(user)], []},
  47         {:meta, [property: "og:description", content: truncated_bio], []},
  48         {:meta, [property: "og:image", content: user_avatar_url(user)], []},
  49         {:meta, [property: "og:image:width", content: 120], []},
  50         {:meta, [property: "og:image:height", content: 120], []},
  51         {:meta, [property: "twitter:card", content: "summary"], []}
  52       ]
  53     end
  54   end
  55
  56   def to_tag(data) do
  57     with {name, attrs, _content = []} <- data do
  58       HTML.Tag.tag(name, attrs)
  59     else
  60       {name, attrs, content} ->
  61         HTML.Tag.content_tag(name, content, attrs)
  62
  63       _ ->
  64         raise ArgumentError, message: "make_tag invalid args"
  65     end
  66   end
  67
  68   defp user_avatar_url(user) do
  69     User.avatar_url(user) |> MediaProxy.url()
  70   end
  71
  72   def pleroma_domain do
  73     Pleroma.Config.get([:instance, :domain], "UNKNOWN_DOMAIN")
  74   end
  75 end