2025-04-16 10:03:13 -03:00

117 lines
3.0 KiB
Elixir

defmodule Plug.Cowboy.Translator do
@moduledoc false
# Cowboy 2.12.0 and below error format
@doc """
The `translate/4` function expected by custom Logger translators.
"""
def translate(
min_level,
:error,
:format,
{~c"Ranch listener" ++ _, [ref, conn_pid, stream_id, stream_pid, reason, stack]}
) do
extra = [" (connection ", inspect(conn_pid), ", stream id ", inspect(stream_id), ?)]
translate_ranch(min_level, ref, extra, stream_pid, reason, stack)
end
# Cowboy 2.13.0 error format
def translate(
min_level,
:error,
:format,
{~c"Ranch listener" ++ _, [ref, conn_pid, stream_id, stream_pid, {reason, stack}]}
) do
extra = [" (connection ", inspect(conn_pid), ", stream id ", inspect(stream_id), ?)]
translate_ranch(min_level, ref, extra, stream_pid, reason, stack)
end
def translate(_min_level, _level, _kind, _data) do
:none
end
## Ranch/Cowboy
defp translate_ranch(
min_level,
_ref,
extra,
pid,
{reason, {mod, :call, [%Plug.Conn{} = conn, _opts]}},
_stack
) do
if log_exception?(reason) do
message = [
inspect(pid),
" running ",
inspect(mod),
extra,
" terminated\n",
conn_info(min_level, conn)
| Exception.format(:exit, reason, [])
]
metadata =
[
crash_reason: reason,
domain: [:cowboy]
] ++ maybe_conn_metadata(conn)
{:ok, message, metadata}
else
:skip
end
end
defp translate_ranch(_min_level, ref, extra, pid, reason, stack) do
{:ok,
[
"Ranch protocol ",
inspect(pid),
" of listener ",
inspect(ref),
extra,
" terminated\n"
| Exception.format_exit({reason, stack})
], crash_reason: {reason, stack}, domain: [:cowboy]}
end
defp log_exception?({%{__exception__: true} = exception, _}) do
status_ranges =
Application.get_env(:plug_cowboy, :log_exceptions_with_status_code, [500..599])
status = Plug.Exception.status(exception)
Enum.any?(status_ranges, &(status in &1))
end
defp log_exception?(_), do: true
defp conn_info(_min_level, conn) do
[server_info(conn), request_info(conn)]
end
defp server_info(%Plug.Conn{host: host, port: :undefined, scheme: scheme}) do
["Server: ", host, ?\s, ?(, Atom.to_string(scheme), ?), ?\n]
end
defp server_info(%Plug.Conn{host: host, port: port, scheme: scheme}) do
["Server: ", host, ":", Integer.to_string(port), ?\s, ?(, Atom.to_string(scheme), ?), ?\n]
end
defp request_info(%Plug.Conn{method: method, query_string: query_string} = conn) do
["Request: ", method, ?\s, path_to_iodata(conn.request_path, query_string), ?\n]
end
defp maybe_conn_metadata(conn) do
if Application.get_env(:plug_cowboy, :conn_in_exception_metadata, true) do
[conn: conn]
else
[]
end
end
defp path_to_iodata(path, ""), do: path
defp path_to_iodata(path, qs), do: [path, ??, qs]
end