diff options
Diffstat (limited to 'lib/pleroma/reverse_proxy.ex')
-rw-r--r-- | lib/pleroma/reverse_proxy.ex | 154 |
1 files changed, 41 insertions, 113 deletions
diff --git a/lib/pleroma/reverse_proxy.ex b/lib/pleroma/reverse_proxy.ex index 2248c2713..a6d5e88af 100644 --- a/lib/pleroma/reverse_proxy.ex +++ b/lib/pleroma/reverse_proxy.ex @@ -59,11 +59,7 @@ defmodule Pleroma.ReverseProxy do * `req_headers`, `resp_headers` additional headers. - * `http`: options for [hackney](https://github.com/benoitc/hackney) or [gun](https://github.com/ninenines/gun). - """ - @default_options [pool: :media] - @inline_content_types [ "image/gif", "image/jpeg", @@ -94,7 +90,7 @@ defmodule Pleroma.ReverseProxy do def call(_conn, _url, _opts \\ []) def call(conn = %{method: method}, url, opts) when method in @methods do - client_opts = Keyword.merge(@default_options, Keyword.get(opts, :http, [])) + client_opts = Keyword.get(opts, :http, []) req_headers = build_req_headers(conn.req_headers, opts) @@ -106,32 +102,39 @@ defmodule Pleroma.ReverseProxy do end with {:ok, nil} <- @cachex.get(:failed_proxy_url_cache, url), - {:ok, code, headers, client} <- request(method, url, req_headers, client_opts), + {:ok, status, headers, body} <- request(method, url, req_headers, client_opts), :ok <- header_length_constraint( headers, Keyword.get(opts, :max_body_length, @max_body_length) ) do - response(conn, client, url, code, headers, opts) + conn + |> put_private(:proxied_url, url) + |> response(body, status, headers, opts) else {:ok, true} -> conn - |> error_or_redirect(url, 500, "Request failed", opts) + |> error_or_redirect(500, "Request failed", opts) |> halt() - {:ok, code, headers} -> - head_response(conn, url, code, headers, opts) + {:ok, status, headers} -> + conn + |> put_private(:proxied_url, url) + |> head_response(status, headers, opts) |> halt() - {:error, {:invalid_http_response, code}} -> - Logger.error("#{__MODULE__}: request to #{inspect(url)} failed with HTTP status #{code}") - track_failed_url(url, code, opts) + {:error, {:invalid_http_response, status}} -> + Logger.error( + "#{__MODULE__}: request to #{inspect(url)} failed with HTTP status #{status}" + ) + + track_failed_url(url, status, opts) conn + |> put_private(:proxied_url, url) |> error_or_redirect( - url, - code, - "Request failed: " <> Plug.Conn.Status.reason_phrase(code), + status, + "Request failed: " <> Plug.Conn.Status.reason_phrase(status), opts ) |> halt() @@ -141,7 +144,8 @@ defmodule Pleroma.ReverseProxy do track_failed_url(url, error, opts) conn - |> error_or_redirect(url, 500, "Request failed", opts) + |> put_private(:proxied_url, url) + |> error_or_redirect(500, "Request failed", opts) |> halt() end end @@ -156,93 +160,48 @@ defmodule Pleroma.ReverseProxy do Logger.debug("#{__MODULE__} #{method} #{url} #{inspect(headers)}") method = method |> String.downcase() |> String.to_existing_atom() - case client().request(method, url, headers, "", opts) do - {:ok, code, headers, client} when code in @valid_resp_codes -> - {:ok, code, downcase_headers(headers), client} + opts = opts ++ [receive_timeout: @max_read_duration] - {:ok, code, headers} when code in @valid_resp_codes -> - {:ok, code, downcase_headers(headers)} + case Pleroma.HTTP.request(method, url, "", headers, opts) do + {:ok, %Tesla.Env{status: status, headers: headers, body: body}} + when status in @valid_resp_codes -> + {:ok, status, downcase_headers(headers), body} - {:ok, code, _, _} -> - {:error, {:invalid_http_response, code}} + {:ok, %Tesla.Env{status: status, headers: headers}} when status in @valid_resp_codes -> + {:ok, status, downcase_headers(headers)} - {:ok, code, _} -> - {:error, {:invalid_http_response, code}} + {:ok, %Tesla.Env{status: status}} -> + {:error, {:invalid_http_response, status}} {:error, error} -> {:error, error} end end - defp response(conn, client, url, status, headers, opts) do - Logger.debug("#{__MODULE__} #{status} #{url} #{inspect(headers)}") - - result = - conn - |> put_resp_headers(build_resp_headers(headers, opts)) - |> send_chunked(status) - |> chunk_reply(client, opts) - - case result do - {:ok, conn} -> - halt(conn) - - {:error, :closed, conn} -> - client().close(client) - halt(conn) + defp response(conn, body, status, headers, opts) do + Logger.debug("#{__MODULE__} #{status} #{conn.private[:proxied_url]} #{inspect(headers)}") - {:error, error, conn} -> - Logger.warn( - "#{__MODULE__} request to #{url} failed while reading/chunking: #{inspect(error)}" - ) - - client().close(client) - halt(conn) - end - end - - defp chunk_reply(conn, client, opts) do - chunk_reply(conn, client, opts, 0, 0) - end - - defp chunk_reply(conn, client, opts, sent_so_far, duration) do - with {:ok, duration} <- - check_read_duration( - duration, - Keyword.get(opts, :max_read_duration, @max_read_duration) - ), - {:ok, data, client} <- client().stream_body(client), - {:ok, duration} <- increase_read_duration(duration), - sent_so_far = sent_so_far + byte_size(data), - :ok <- - body_size_constraint( - sent_so_far, - Keyword.get(opts, :max_body_length, @max_body_length) - ), - {:ok, conn} <- chunk(conn, data) do - chunk_reply(conn, client, opts, sent_so_far, duration) - else - :done -> {:ok, conn} - {:error, error} -> {:error, error, conn} - end + conn + |> put_resp_headers(build_resp_headers(headers, opts)) + |> send_resp(status, body) end - defp head_response(conn, url, code, headers, opts) do - Logger.debug("#{__MODULE__} #{code} #{url} #{inspect(headers)}") + defp head_response(conn, status, headers, opts) do + Logger.debug("#{__MODULE__} #{status} #{conn.private[:proxied_url]} #{inspect(headers)}") conn |> put_resp_headers(build_resp_headers(headers, opts)) - |> send_resp(code, "") + |> send_resp(status, "") end - defp error_or_redirect(conn, url, code, body, opts) do + defp error_or_redirect(conn, status, body, opts) do if Keyword.get(opts, :redirect_on_failure, false) do conn - |> Phoenix.Controller.redirect(external: url) + |> Phoenix.Controller.redirect(external: conn.private[:proxied_url]) |> halt() else conn - |> send_resp(code, body) + |> send_resp(status, body) |> halt end end @@ -382,37 +341,6 @@ defmodule Pleroma.ReverseProxy do defp header_length_constraint(_, _), do: :ok - defp body_size_constraint(size, limit) when is_integer(limit) and limit > 0 and size >= limit do - {:error, :body_too_large} - end - - defp body_size_constraint(_, _), do: :ok - - defp check_read_duration(nil = _duration, max), do: check_read_duration(@max_read_duration, max) - - defp check_read_duration(duration, max) - when is_integer(duration) and is_integer(max) and max > 0 do - if duration > max do - {:error, :read_duration_exceeded} - else - {:ok, {duration, :erlang.system_time(:millisecond)}} - end - end - - defp check_read_duration(_, _), do: {:ok, :no_duration_limit, :no_duration_limit} - - defp increase_read_duration({previous_duration, started}) - when is_integer(previous_duration) and is_integer(started) do - duration = :erlang.system_time(:millisecond) - started - {:ok, previous_duration + duration} - end - - defp increase_read_duration(_) do - {:ok, :no_duration_limit, :no_duration_limit} - end - - defp client, do: Pleroma.ReverseProxy.Client.Wrapper - defp track_failed_url(url, error, opts) do ttl = unless error in [:body_too_large, 400, 204] do |