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mobilizon/lib/service/formatter/oembed.ex

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Elixir
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defmodule Mobilizon.Service.Formatter.OEmbed do
@moduledoc """
Custom strategy to filter HTML content in OEmbed html
"""
require FastSanitize.Sanitizer.Meta
alias FastSanitize.Sanitizer.Meta
@valid_schemes ~w(https http)
Meta.strip_comments()
Meta.allow_tag_with_uri_attributes(:a, ["href"], @valid_schemes)
Meta.allow_tag_with_uri_attributes(:img, ["src"], @valid_schemes)
Meta.allow_tag_with_these_attributes(:audio, ["controls"])
Meta.allow_tag_with_uri_attributes(:embed, ["src"], @valid_schemes)
Meta.allow_tag_with_these_attributes(:embed, ["height type width"])
Meta.allow_tag_with_uri_attributes(:iframe, ["src"], @valid_schemes)
Meta.allow_tag_with_these_attributes(
:iframe,
["allowfullscreen frameborder allow height scrolling width"]
)
Meta.allow_tag_with_uri_attributes(:source, ["src"], @valid_schemes)
Meta.allow_tag_with_these_attributes(:source, ["type"])
Meta.allow_tag_with_these_attributes(:video, ["controls height loop width"])
Meta.strip_everything_not_covered()
end