links_only.ex
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links_only.ex
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	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.HTML.Scrubber.LinksOnly do
	@moduledoc """
	An HTML scrubbing policy which limits to links only.
	"""

	@valid_schemes Pleroma.Config.get([:uri_schemes, :valid_schemes], [])

	require FastSanitize.Sanitizer.Meta
	alias FastSanitize.Sanitizer.Meta

	Meta.strip_comments()

	# links
	Meta.allow_tag_with_uri_attributes(:a, ["href"], @valid_schemes)

	Meta.allow_tag_with_this_attribute_values(:a, "rel", [
	"tag",
	"nofollow",
	"noopener",
	"noreferrer",
	"me",
	"ugc"
	])

	Meta.allow_tag_with_these_attributes(:a, ["name", "title"])
	Meta.strip_everything_not_covered()
	end