Merge remote-tracking branch 'origin/develop' into matrixmatrix

1 files changed, 29 insertions, 0 deletions

diff --git a/lib/pleroma/web/rich_media/parsers/o_embed.ex b/lib/pleroma/web/rich_media/parsers/o_embed.ex
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+# 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} <- get_oembed_data(oembed_url) do
+      oembed_data
+    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