Module: Sisimai::Lhost::MessagingServer

Defined in:
lib/sisimai/lhost/messagingserver.rb

Overview

Sisimai::Lhost::MessagingServer decodes a bounce email which created by Oracle Communications Messaging Server and Sun Java System Messaging Server docs.oracle.com/en/industries/communications/messaging-server/index.html. Methods in the module are called from only Sisimai::Message.

Constant Summary collapse

Indicators = 
Sisimai::Lhost.INDICATORS
Boundaries = 
['Content-Type: message/rfc822', 'Return-path: '].freeze
StartingOf = 
{message: ['This report relates to a message you sent with the following header fields:']}.freeze

Class Method Summary collapse

Class Method Details

.description ⇒ Object 



140
 
# File 'lib/sisimai/lhost/messagingserver.rb', line 140

def description; return 'Oracle Communications Messaging Server'; end

.inquire(mhead, mbody) ⇒ Hash, Nil

This method is abstract.

Decodes the bounce message from MessagingServer

Parameters:

  • mhead (Hash) —

    Message headers of a bounce email

  • mbody (String) —

    Message body of a bounce email

Returns:

  • (Hash) —

    Bounce data list and message/rfc822 part

  • (Nil) —

    it failed to decode or the arguments are missing



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# File 'lib/sisimai/lhost/messagingserver.rb', line 18

def inquire(mhead, mbody)
  match  = 0
  match += 1 if mhead['content-type'].include?('Boundary_(ID_')
  match += 1 if mhead['subject'].start_with?('Delivery Notification: ')
  return nil if match == 0

  dscontents = [Sisimai::Lhost.DELIVERYSTATUS]; v = nil
  emailparts = Sisimai::RFC5322.part(mbody, Boundaries)
  bodyslices = emailparts[0].split("\n")
  readcursor = 0      # (Integer) Points the current cursor position
  recipients = 0      # (Integer) The number of 'Final-Recipient' header

  while e = bodyslices.shift do
    # Read error messages and delivery status lines from the head of the email to the previous
    # line of the beginning of the original message.
    if readcursor == 0
      # Beginning of the bounce message or delivery status part
      readcursor |= Indicators[:deliverystatus] if e.start_with?(StartingOf[:message][0])
      next
    end
    next if (readcursor & Indicators[:deliverystatus]) == 0 || e.empty?

    # --Boundary_(ID_0000000000000000000000)
    # Content-type: text/plain; charset=us-ascii
    # Content-language: en-US
    #
    # This report relates to a message you sent with the following header fields:
    #
    #   Message-id: <CD8C6134-C312-41D5-B083-366F7FA1D752@me.example.com>
    #   Date: Fri, 21 Nov 2014 23:34:45 +0900
    #   From: Shironeko <shironeko@me.example.com>
    #   To: kijitora@example.jp
    #   Subject: Nyaaaaaaaaaaaaaaaaaaaaaan
    #
    # Your message cannot be delivered to the following recipients:
    #
    #   Recipient address: kijitora@example.jp
    #   Reason: Remote SMTP server has rejected address
    #   Diagnostic code: smtp;550 5.1.1 <kijitora@example.jp>... User Unknown
    #   Remote system: dns;mx.example.jp (TCP|17.111.174.67|47323|192.0.2.225|25) (6jo.example.jp ESMTP SENDMAIL-VM)
    v = dscontents[-1]

    if Sisimai::String.aligned(e, ['  Recipient address: ', '@', '.']) ||
       Sisimai::String.aligned(e, ['  Original address: ',  '@', '.'])
      #   Recipient address: @smtp.example.net:kijitora@server
      #   Original address: kijitora@example.jp
      cv = Sisimai::Address.s3s4(e[e.rindex(' ') + 1, e.size])
      next if Sisimai::Address.is_emailaddress(cv) == false

      if v["recipient"] != "" && cv != v['recipient']
        # There are multiple recipient addresses in the message body.
        dscontents << Sisimai::Lhost.DELIVERYSTATUS
        v = dscontents[-1]
      end
      v['recipient'] = cv
      recipients += 1

    elsif e.start_with?('  Date: ')
      #   Date: Fri, 21 Nov 2014 23:34:45 +0900
      v['date'] = e[e.index(':') + 2, e.size]

    elsif e.start_with?('  Reason: ')
      #   Reason: Remote SMTP server has rejected address
      v['diagnosis'] = e[e.index(':') + 2, e.size]

    elsif e.start_with?('  Diagnostic code: ')
      #   Diagnostic code: smtp;550 5.1.1 <kijitora@example.jp>... User Unknown
      p1 = e.index(':')
      p2 = e.index(';')
      v['spec'] = e[p1 + 2, p2 - p1 - 2].upcase
      v['diagnosis'] = e[p2 + 1, e.size]

    elsif e.start_with?('  Remote system: ')
      #   Remote system: dns;mx.example.jp (TCP|17.111.174.67|47323|192.0.2.225|25)
      #     (6jo.example.jp ESMTP SENDMAIL-VM)
      p1 = e.index(';')
      p2 = e.index('(')
      remotehost = e[p1 + 1, p2 - p1 - 2]
      sessionlog = e[p2, e.size].split('|')
      v['rhost'] = remotehost

      # The value does not include ".", use IP address instead.
      # (TCP|17.111.174.67|47323|192.0.2.225|25)
      next if sessionlog[0] != '(TCP'
      v['lhost'] = sessionlog[1]
      v['rhost'] = sessionlog[3] if remotehost.index('.') < 2
    else
      # Original-envelope-id: 0NFC009FLKOUVMA0@mr21p30im-asmtp004.me.com
      # Reporting-MTA: dns;mr21p30im-asmtp004.me.com (tcp-daemon)
      # Arrival-date: Thu, 29 Apr 2014 23:34:45 +0000 (GMT)
      #
      # Original-recipient: rfc822;kijitora@example.jp
      # Final-recipient: rfc822;kijitora@example.jp
      # Action: failed
      # Status: 5.1.1 (Remote SMTP server has rejected address)
      # Remote-MTA: dns;mx.example.jp (TCP|17.111.174.67|47323|192.0.2.225|25)
      #  (6jo.example.jp ESMTP SENDMAIL-VM)
      # Diagnostic-code: smtp;550 5.1.1 <kijitora@example.jp>... User Unknown
      #
      case
      when e.start_with?('Status: ')
        # Status: 5.1.1 (Remote SMTP server has rejected address)
        p1 = e.index(':')
        p2 = e.index('('); next if p2.nil?
        v['status']    = e[p1 + 2, p2 - p1 - 3]
        v['diagnosis'] = e[p2 + 1, e[e.index(')') - p2 - 1]] if v["diagnosis"].empty?

      when e.start_with?('Arrival-Date: ')
        # Arrival-date: Thu, 29 Apr 2014 23:34:45 +0000 (GMT)
        v['date'] = e[e.index(':') + 2, e.size] if v["date"].empty?

      when e.start_with?('Reporting-MTA: ')
        # Reporting-MTA: dns;mr21p30im-asmtp004.me.com (tcp-daemon)
        localhost = e[e.index(';') + 1, e.size]
        v['lhost'] = localhost if v["lhost"].empty?
        v['lhost'] = localhost if v['lhost'].index('.') < 1
      end
    end
  end
  return nil if recipients == 0
  return {"ds" => dscontents, "rfc822" => emailparts[1]}
end