35 lines
1,001 B
Elixir
35 lines
1,001 B
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.RichMedia.Parsers.OEmbed do
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def parse(html, _data) do
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with elements = [_ | _] <- get_discovery_data(html),
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{:ok, oembed_url} <- get_oembed_url(elements),
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{:ok, oembed_data} <- get_oembed_data(oembed_url) do
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{:ok, oembed_data}
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else
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_e -> {:error, "No OEmbed data found"}
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end
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end
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defp get_discovery_data(html) do
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html |> Floki.find("link[type='application/json+oembed']")
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end
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defp get_oembed_url(nodes) do
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{"link", attributes, _children} = nodes |> hd()
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{:ok, Enum.into(attributes, %{})["href"]}
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end
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defp get_oembed_data(url) do
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{:ok, %Tesla.Env{body: json}} = Pleroma.HTTP.get(url, [], adapter: [pool: :media])
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{:ok, data} = Jason.decode(json)
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data = data |> Map.new(fn {k, v} -> {String.to_atom(k), v} end)
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{:ok, data}
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end
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end
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