defmodule Pleroma.Web.MediaProxy.MediaProxyController do use Pleroma.Web, :controller require Logger def remote(conn, %{"sig" => sig, "url" => url}) do {:ok, url} = Pleroma.MediaProxy.decode_url(sig, url) url = url |> URI.encode() case proxy_request(url) do {:ok, content_type, body} -> conn |> put_resp_content_type(content_type) |> set_cache_header(:default) |> send_resp(200, body) other -> conn |> set_cache_header(:error) |> redirect(external: url) end end defp proxy_request(link) do instance = ) headers = [{"user-agent", "Pleroma/MediaProxy; #{Pleroma.Web.base_url()} <#{Application.get_env(:pleroma, :instance)[:email]}>"}] options = [:insecure, {:follow_redirect, true}] case :hackney.request(:get, link, headers, "", options) do {:ok, 200, headers, client} -> headers = Enum.into(headers, Map.new) {:ok, body} = :hackney.body(client) {:ok, headers["Content-Type"], body} {:ok, status, _, _} -> Logger.warn "MediaProxy: request failed, status #{status}, link: #{link}" {:error, :bad_status} {:error, error} -> Logger.warn "MediaProxy: request failed, error #{inspect error}, link: #{link}" {:error, error} end end @cache_control %{ default: "public, max-age=1209600", error: "public, must-revalidate, max-age=160", } defp set_cache_header(conn, true), do: set_cache_header(conn, :default) defp set_cache_header(conn, false), do: set_cache_header(conn, :error) defp set_cache_header(conn, key) when is_atom(key), do: set_cache_header(conn, @cache_control[key]) defp set_cache_header(conn, value) when is_binary(value), do: Plug.Conn.put_resp_header(conn, "cache-control", value) end