1 # Pleroma: A lightweight social networking server
2 # Copyright _ 2017-2020 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
5 defmodule Pleroma.Web.RichMedia.Helpers do
10 alias Pleroma.Web.RichMedia.Parser
12 @spec validate_page_url(any()) :: :ok | :error
13 defp validate_page_url(page_url) when is_binary(page_url) do
14 validate_tld = Application.get_env(:auto_linker, :opts)[:validate_tld]
17 |> AutoLinker.Parser.url?(scheme: true, validate_tld: validate_tld)
18 |> parse_uri(page_url)
21 defp validate_page_url(%URI{host: host, scheme: scheme, authority: authority})
22 when scheme == "https" and not is_nil(authority) do
24 host in Config.get([:rich_media, :ignore_hosts], []) ->
27 get_tld(host) in Config.get([:rich_media, :ignore_tld], []) ->
35 defp validate_page_url(_), do: :error
37 defp parse_uri(true, url) do
43 defp parse_uri(_, _), do: :error
52 def fetch_data_for_activity(%Activity{data: %{"type" => "Create"}} = activity) do
53 with true <- Config.get([:rich_media, :enabled]),
54 %Object{} = object <- Object.normalize(activity),
55 false <- object.data["sensitive"] || false,
56 {:ok, page_url} <- HTML.extract_first_external_url(object, object.data["content"]),
57 :ok <- validate_page_url(page_url),
58 {:ok, rich_media} <- Parser.parse(page_url) do
59 %{page_url: page_url, rich_media: rich_media}
65 def fetch_data_for_activity(_), do: %{}
67 def perform(:fetch, %Activity{} = activity), do: fetch_data_for_activity(activity)