77 lines
		
	
	
	
		
			2 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			77 lines
		
	
	
	
		
			2 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.HTTP.AdapterHelper.Gun do
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  @behaviour Pleroma.HTTP.AdapterHelper
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  alias Pleroma.HTTP.AdapterHelper
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  alias Pleroma.Pool.Connections
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  require Logger
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  @defaults [
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    connect_timeout: 5_000,
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    domain_lookup_timeout: 5_000,
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    tls_handshake_timeout: 5_000,
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    retry: 1,
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    retry_timeout: 1000,
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    await_up_timeout: 5_000
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  ]
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  @spec options(keyword(), URI.t()) :: keyword()
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  def options(incoming_opts \\ [], %URI{} = uri) do
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    proxy =
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      Pleroma.Config.get([:http, :proxy_url])
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      |> AdapterHelper.format_proxy()
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    config_opts = Pleroma.Config.get([:http, :adapter], [])
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    @defaults
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    |> Keyword.merge(config_opts)
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    |> add_scheme_opts(uri)
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    |> AdapterHelper.maybe_add_proxy(proxy)
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    |> maybe_get_conn(uri, incoming_opts)
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  end
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  @spec after_request(keyword()) :: :ok
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  def after_request(opts) do
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    if opts[:conn] && opts[:body_as] != :chunks do
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      Connections.checkout(opts[:conn], self(), :gun_connections)
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    end
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    :ok
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  end
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  defp add_scheme_opts(opts, %{scheme: "http"}), do: opts
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  defp add_scheme_opts(opts, %{scheme: "https"}) do
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    opts
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    |> Keyword.put(:certificates_verification, true)
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    |> Keyword.put(:tls_opts, log_level: :warning)
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  end
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  defp maybe_get_conn(adapter_opts, uri, incoming_opts) do
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    {receive_conn?, opts} =
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      adapter_opts
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      |> Keyword.merge(incoming_opts)
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      |> Keyword.pop(:receive_conn, true)
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    if Connections.alive?(:gun_connections) and receive_conn? do
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      checkin_conn(uri, opts)
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    else
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      opts
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    end
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  end
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  defp checkin_conn(uri, opts) do
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    case Connections.checkin(uri, :gun_connections) do
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      nil ->
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        Task.start(Pleroma.Gun.Conn, :open, [uri, :gun_connections, opts])
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        opts
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      conn when is_pid(conn) ->
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        Keyword.merge(opts, conn: conn, close_conn: false)
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    end
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  end
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end
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