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# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.MediaProxy.Invalidation do
@moduledoc false
@callback purge(list(String.t()), Keyword.t()) :: {:ok, list(String.t())} | {:error, String.t()}
alias Pleroma.Config
alias Pleroma.Web.MediaProxy
@spec enabled?() :: boolean()
def enabled?, do: Config.get([:media_proxy, :invalidation, :enabled])
@spec purge(list(String.t()) | String.t()) :: {:ok, list(String.t())} | {:error, String.t()}
def purge(urls) do
prepared_urls = prepare_urls(urls)
if enabled?() do
do_purge(prepared_urls)
else
{:ok, prepared_urls}
end
end
defp do_purge(urls) do
provider = Config.get([:media_proxy, :invalidation, :provider])
options = Config.get(provider)
provider.purge(urls, options)
end
def prepare_urls(urls) do
urls
|> List.wrap()
|> Enum.map(fn url -> [MediaProxy.url(url), MediaProxy.preview_url(url)] end)
|> List.flatten()
|> Enum.uniq()
end
end
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