Module: Sisimai::Lhost::Biglobe

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

Overview

Sisimai::Lhost::Biglobe decodes a bounce email which created by BIGLOBE www.biglobe.ne.jp/. Methods in the module are called from only Sisimai::Message.

Constant Summary collapse

Indicators = 
Sisimai::Lhost.INDICATORS
Boundaries = 
['Content-Type: message/rfc822'].freeze
StartingOf = 
{
  message: ['   ----- The following addresses had delivery problems -----'],
  error:   ['   ----- Non-delivered information -----'],
}.freeze

Class Method Summary collapse

Class Method Details

.description ⇒ Object 



77
 
# File 'lib/sisimai/lhost/biglobe.rb', line 77

def description; return 'BIGLOBE: https://www.biglobe.ne.jp'; end

.inquire(mhead, mbody) ⇒ Hash, Nil

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/biglobe.rb', line 20

def inquire(mhead, mbody)
  return nil if mhead['from'].include?('postmaster@') == false
  return nil if %w[biglobe inacatv tmtv ttv].none? { |a| mhead['from'].include?('@' + a + '.ne.jp') }
  return nil if mhead['subject'].start_with?('Returned mail:') == false

  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 == StartingOf[:message][0]
      next
    end
    next if (readcursor & Indicators[:deliverystatus]) == 0 || e.empty?

    # This is a MIME-encapsulated message.
    #
    # ----_Biglobe000000/00000.biglobe.ne.jp
    # Content-Type: text/plain; charset="iso-2022-jp"
    #
    #    ----- The following addresses had delivery problems -----
    # ********@***.biglobe.ne.jp
    #
    #    ----- Non-delivered information -----
    # The number of messages in recipient's mailbox exceeded the local limit.
    #
    # ----_Biglobe000000/00000.biglobe.ne.jp
    # Content-Type: message/rfc822
    #
    v = dscontents[-1]

    if e.include?('@') && e.include?(' ') == false
      #    ----- The following addresses had delivery problems -----
      # ********@***.biglobe.ne.jp
      if v["recipient"] != ""
        # There are multiple recipient addresses in the message body.
        dscontents << Sisimai::Lhost.DELIVERYSTATUS
        v = dscontents[-1]
      end

      next if Sisimai::Address.is_emailaddress(e) == false
      v['recipient'] = e
      recipients += 1
    else
      next if e.include?('--')
      v['diagnosis'] += "#{e }"
    end
  end
  return nil if recipients == 0
  return { 'ds' => dscontents, 'rfc822' => emailparts[1] }
end