2019-07-10 07:13:23 +02:00
|
|
|
# Pleroma: A lightweight social networking server
|
2020-03-03 23:44:49 +01:00
|
|
|
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
|
2019-07-10 07:13:23 +02:00
|
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
|
|
|
2019-01-13 01:06:50 +01:00
|
|
|
defmodule Pleroma.Web.RichMedia.Parsers.OEmbed do
|
|
|
|
def parse(html, _data) do
|
|
|
|
with elements = [_ | _] <- get_discovery_data(html),
|
2020-06-09 19:49:24 +02:00
|
|
|
oembed_url when is_binary(oembed_url) <- get_oembed_url(elements),
|
2019-01-13 01:06:50 +01:00
|
|
|
{:ok, oembed_data} <- get_oembed_data(oembed_url) do
|
2020-06-11 15:57:31 +02:00
|
|
|
oembed_data
|
2019-01-13 01:06:50 +01:00
|
|
|
else
|
2020-06-11 15:57:31 +02:00
|
|
|
_e -> %{}
|
2019-01-13 01:06:50 +01:00
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
defp get_discovery_data(html) do
|
|
|
|
html |> Floki.find("link[type='application/json+oembed']")
|
|
|
|
end
|
|
|
|
|
2020-06-09 19:49:24 +02:00
|
|
|
defp get_oembed_url([{"link", attributes, _children} | _]) do
|
|
|
|
Enum.find_value(attributes, fn {k, v} -> if k == "href", do: v end)
|
2019-01-13 01:06:50 +01:00
|
|
|
end
|
|
|
|
|
|
|
|
defp get_oembed_data(url) do
|
2020-06-09 19:49:24 +02:00
|
|
|
with {:ok, %Tesla.Env{body: json}} <- Pleroma.HTTP.get(url, [], adapter: [pool: :media]) do
|
|
|
|
Jason.decode(json)
|
|
|
|
end
|
2019-01-13 01:06:50 +01:00
|
|
|
end
|
|
|
|
end
|