+ defp local?(url), do: String.starts_with?(url, Pleroma.Web.base_url())
+
+ defp whitelisted?(url) do
+ %{host: domain} = URI.parse(url)
+
+ mediaproxy_whitelist = Config.get([:media_proxy, :whitelist])
+
+ upload_base_url_domain =
+ if !is_nil(Config.get([Upload, :base_url])) do
+ [URI.parse(Config.get([Upload, :base_url])).host]
+ else
+ []
+ end
+
+ whitelist = mediaproxy_whitelist ++ upload_base_url_domain
+
+ Enum.any?(whitelist, fn pattern ->
+ String.equivalent?(domain, pattern)
+ end)
+ end
+
+ def encode_url(url) do
+ base64 = Base.url_encode64(url, @base64_opts)
+
+ sig64 =
+ base64
+ |> signed_url
+ |> Base.url_encode64(@base64_opts)
+
+ build_url(sig64, base64, filename(url))
+ end
+
+ def decode_url(sig, url) do
+ with {:ok, sig} <- Base.url_decode64(sig, @base64_opts),
+ signature when signature == sig <- signed_url(url) do