JezK
Edit File: error_logger.rb
# frozen_string_literal: true require 'puma/const' module Puma # The implementation of a detailed error logging. # @version 5.0.0 # class ErrorLogger include Const attr_reader :ioerr REQUEST_FORMAT = %{"%s %s%s" - (%s)} def initialize(ioerr) @ioerr = ioerr @debug = ENV.key? 'PUMA_DEBUG' end def self.stdio new $stderr end # Print occurred error details. # +options+ hash with additional options: # - +error+ is an exception object # - +req+ the http request # - +text+ (default nil) custom string to print in title # and before all remaining info. # def info(options={}) log title(options) end # Print occurred error details only if # environment variable PUMA_DEBUG is defined. # +options+ hash with additional options: # - +error+ is an exception object # - +req+ the http request # - +text+ (default nil) custom string to print in title # and before all remaining info. # def debug(options={}) return unless @debug error = options[:error] req = options[:req] string_block = [] string_block << title(options) string_block << request_dump(req) if request_parsed?(req) string_block << error.backtrace if error log string_block.join("\n") end def title(options={}) text = options[:text] req = options[:req] error = options[:error] string_block = ["#{Time.now}"] string_block << " #{text}" if text string_block << " (#{request_title(req)})" if request_parsed?(req) string_block << ": #{error.inspect}" if error string_block.join('') end def request_dump(req) "Headers: #{request_headers(req)}\n" \ "Body: #{req.body}" end def request_title(req) env = req.env REQUEST_FORMAT % [ env[REQUEST_METHOD], env[REQUEST_PATH] || env[PATH_INFO], env[QUERY_STRING] || "", env[HTTP_X_FORWARDED_FOR] || env[REMOTE_ADDR] || "-" ] end def request_headers(req) headers = req.env.select { |key, _| key.start_with?('HTTP_') } headers.map { |key, value| [key[5..-1], value] }.to_h.inspect end def request_parsed?(req) req && req.env[REQUEST_METHOD] end private def log(str) ioerr.puts str ioerr.flush unless ioerr.sync end end end