30 lines
973 B
Elixir
30 lines
973 B
Elixir
# Pleroma: A lightweight social networking server
|
|
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
defmodule Pleroma.Web.RichMedia.Parsers.OEmbed do
|
|
def parse(html, _data) do
|
|
with elements = [_ | _] <- get_discovery_data(html),
|
|
oembed_url when is_binary(oembed_url) <- get_oembed_url(elements),
|
|
{:ok, oembed_data = %{"html" => html}} <- get_oembed_data(oembed_url) do
|
|
%{oembed_data | "html" => Pleroma.HTML.filter_tags(html)}
|
|
else
|
|
_e -> %{}
|
|
end
|
|
end
|
|
|
|
defp get_discovery_data(html) do
|
|
html |> Floki.find("link[type='application/json+oembed']")
|
|
end
|
|
|
|
defp get_oembed_url([{"link", attributes, _children} | _]) do
|
|
Enum.find_value(attributes, fn {k, v} -> if k == "href", do: v end)
|
|
end
|
|
|
|
defp get_oembed_data(url) do
|
|
with {:ok, %Tesla.Env{body: json}} <- Pleroma.Web.RichMedia.Helpers.rich_media_get(url) do
|
|
Jason.decode(json)
|
|
end
|
|
end
|
|
end
|