#!/usr/bin/ruby
require "rmail"

msg=RMail::Parser.read(STDIN.read)

class RMail::Message
  def every_part(&block)
    self.each_part{|prt|
      if prt.multipart?
	prt.every_part(&block)
      else
	block.call(prt)
      end}
  end
end

out=msg.header.to_s
if msg.multipart?
  msg.every_part{|prt|
    out+=prt.header.to_s
    if type=prt.header.content_type
      case type
      when /text/i
	out+=prt.decode if not prt.header.to_s[/base64/i]
      when /image|octet/i
      end
    else
      out+=prt.body.to_s if not prt.header.to_s[/base64/i]
    end}
else
  if not msg.to_s[/base64/i]
    out+=msg.decode if msg.decode
  end
end
print out