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33 lines
1.1 KiB
Elixir
33 lines
1.1 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Mobilizon.Web.MediaProxyController do
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use Mobilizon.Web, :controller
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alias Mobilizon.Config
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alias Mobilizon.Web.{MediaProxy, ReverseProxy}
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alias Plug.Conn
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# sobelow_skip ["XSS.SendResp"]
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def remote(conn, %{"sig" => sig64, "url" => url64}) do
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with {_, true} <- {:enabled, MediaProxy.enabled?()},
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{:ok, url} <- MediaProxy.decode_url(sig64, url64),
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:ok <- MediaProxy.verify_request_path_and_url(conn, url) do
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ReverseProxy.call(conn, url, media_proxy_opts())
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else
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{:enabled, false} ->
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send_resp(conn, 404, Conn.Status.reason_phrase(404))
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{:error, :invalid_signature} ->
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send_resp(conn, 403, Conn.Status.reason_phrase(403))
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{:wrong_filename, filename} ->
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redirect(conn, external: MediaProxy.build_url(sig64, url64, filename))
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end
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end
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defp media_proxy_opts do
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Config.get([:media_proxy, :proxy_opts], [])
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end
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end
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