Merge branch 'release/2.2.0' into 'stable'v2.2.0

Release/2.2.0

See merge request pleroma/secteam/pleroma!19

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
new file mode 100644
index 000000000..1fe6729c3
--- /dev/null
+++ b/lib/pleroma/web/rich_media/parsers/o_embed.ex
@@ -0,0 +1,29 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2020 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