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46 lines
1.2 KiB
Elixir
46 lines
1.2 KiB
Elixir
defmodule PhilomenaWeb.ScraperPlug do
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def init(opts) do
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opts
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end
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def call(conn, opts) do
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params_name = Keyword.get(opts, :params_name, "image")
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params_key = Keyword.get(opts, :params_key, "image")
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case conn.params do
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%{^params_name => %{^params_key => %Plug.Upload{}}} ->
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conn
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%{"scraper_cache" => url} when not is_nil(url) ->
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url
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|> Philomena.Http.get!()
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|> maybe_fixup_params(opts, conn)
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_ ->
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conn
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end
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end
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defp maybe_fixup_params(%Tesla.Env{body: body, status: 200}, opts, conn) do
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params_name = Keyword.get(opts, :params_name, "image")
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params_key = Keyword.get(opts, :params_key, "image")
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file = Briefly.create!()
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now = DateTime.utc_now() |> DateTime.to_unix(:microsecond)
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File.write!(file, body)
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fake_upload = %Plug.Upload{
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path: file,
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content_type: "application/octet-stream",
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filename: "scraper-#{now}"
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}
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updated_form = Map.put(conn.params[params_name], params_key, fake_upload)
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updated_params = Map.put(conn.params, params_name, updated_form)
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%Plug.Conn{conn | params: updated_params}
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end
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defp maybe_fixup_params(_response, _opts, conn), do: conn
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end
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