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