mailcatcher/lib/mail_catcher/smtp.rb

require 'eventmachine'

module MailCatcher
  class Smtp < EventMachine::Protocols::SmtpServer
    def current_message
      @current_message ||= {}
    end
  
    def receive_reset
      @current_message = nil
      true
    end
  
    def receive_sender(sender)
      current_message[:sender] = sender
      true
    end
  
    def receive_recipient(recipient)
      current_message[:recipients] ||= []
      current_message[:recipients] << recipient
      true
    end
  
    def receive_data_chunk(lines)
      current_message[:source] ||= ""
      current_message[:source] += lines.join("\n")
      true
    end

    def receive_message
      MailCatcher::Mail.add_message current_message
      puts "==> SMTP: Received message from '#{current_message[:sender]}' (#{current_message[:source].length} bytes)"
      true
    rescue
      puts "*** Error receiving message: #{current_message.inspect}"
      puts "    Exception: #{$!}"
      puts "    Backtrace:"
      $!.backtrace.each do |line|
        puts "       #{line}"
      end
      puts "    Please submit this as an issue at http://github.com/sj26/mailcatcher/issues"
      false
    ensure
      @current_message = nil
    end
  end
end