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43 lines
1.1 KiB
Elixir
43 lines
1.1 KiB
Elixir
defmodule LivebookWeb.IframeEndpoint do
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use Plug.Builder
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defmodule AssetsMemoryProvider do
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use LivebookWeb.MemoryProvider,
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from: Path.expand("../../iframe/priv/static/iframe", __DIR__),
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gzip: true
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end
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plug LivebookWeb.StaticPlug,
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at: "/iframe",
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file_provider: AssetsMemoryProvider,
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gzip: true,
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headers: [
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# Enable CORS to allow Livebook fetch the content and verify its integrity
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{"access-control-allow-origin", "*"},
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# Iframes are versioned, so we cache them for long
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{"cache-control", "public, max-age=31536000"},
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# Specify the charset
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{"content-type", "text/html; charset=utf-8"}
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]
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plug :not_found
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defp not_found(conn, _) do
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send_resp(conn, 404, "not found")
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end
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@doc """
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Returns the listening port of the iframe endpoint.
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"""
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@spec port() :: pos_integer()
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def port() do
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livebook_port = Livebook.Config.port()
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iframe_port = Livebook.Config.iframe_port()
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case livebook_port do
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0 -> Livebook.Utils.get_port(__MODULE__, :http, iframe_port)
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_ -> iframe_port
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end
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end
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end
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