o_embed.ex (973B)
- # Pleroma: A lightweight social networking server
- # Copyright © 2017-2022 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