method

failsafe_response

v1.2.6 - Show latest stable - 0 notes - Class: Dispatcher

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failsafe_response(output, status, exception = nil) private

If the block raises, send status code as a last-ditch response.

# File railties/lib/dispatcher.rb, line 135
      def failsafe_response(output, status, exception = nil)
        yield
      rescue Exception  # errors from executed block
        begin
          output.write "Status: #{status}\r\n"
          
          if exception
            message    = exception.to_s + "\r\n" + exception.backtrace.join("\r\n")
            error_path = File.join(RAILS_ROOT, 'public', '500.html')

            if defined?(RAILS_DEFAULT_LOGGER) && !RAILS_DEFAULT_LOGGER.nil?
              RAILS_DEFAULT_LOGGER.fatal(message)

              output.write "Content-Type: text/html\r\n\r\n"

              if File.exists?(error_path)
                output.write(IO.read(error_path))
              else
                output.write("<html><body><h1>Application error (Rails)</h1></body></html>")
              end
            else
              output.write "Content-Type: text/plain\r\n\r\n"
              output.write(message)
            end
          end
        rescue Exception  # Logger or IO errors
        end
      end

failsafe_response

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