module Sisimai::Lhost::OpenSMTPD
Sisimai::Lhost::OpenSMTPD
parses a bounce email which created by OpenSMTPD
. Methods in the module are called from only Sisimai::Message
.
Constants
- Indicators
- MessagesOf
- ReBackbone
- StartingOf
Public Class Methods
description()
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# File lib/sisimai/lhost/opensmtpd.rb, line 133 def description; return 'OpenSMTPD'; end
make(mhead, mbody)
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Parse bounce messages from OpenSMTPD
@param [Hash] mhead Message
headers of a bounce email @param [String] mbody Message
body of a bounce email @return [Hash] Bounce data list and message/rfc822 part @return [Nil] it failed to parse or the arguments are missing
# File lib/sisimai/lhost/opensmtpd.rb, line 73 def make(mhead, mbody) return nil unless mhead['subject'].start_with?('Delivery status notification') return nil unless mhead['from'].start_with?('Mailer Daemon <') return nil unless mhead['received'].any? { |a| a.include?(' (OpenSMTPD) with ') } dscontents = [Sisimai::Lhost.DELIVERYSTATUS] emailsteak = Sisimai::RFC5322.fillet(mbody, ReBackbone) bodyslices = emailsteak[0].split("\n") readcursor = 0 # (Integer) Points the current cursor position recipients = 0 # (Integer) The number of 'Final-Recipient' header v = nil 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 next if e.empty? # Hi! # # This is the MAILER-DAEMON, please DO NOT REPLY to this e-mail. # # An error has occurred while attempting to deliver a message for # the following list of recipients: # # kijitora@example.jp: 550 5.2.2 <kijitora@example>... Mailbox Full # # Below is a copy of the original message: v = dscontents[-1] if cv = e.match(/\A([^ ]+?[@][^ ]+?):?[ ](.+)\z/) # kijitora@example.jp: 550 5.2.2 <kijitora@example>... Mailbox Full if v['recipient'] # There are multiple recipient addresses in the message body. dscontents << Sisimai::Lhost.DELIVERYSTATUS v = dscontents[-1] end v['recipient'] = cv[1] v['diagnosis'] = cv[2] recipients += 1 end end return nil unless recipients > 0 dscontents.each do |e| e['diagnosis'] = Sisimai::String.sweep(e['diagnosis']) MessagesOf.each_key do |r| # Verify each regular expression of session errors next unless MessagesOf[r].any? { |a| e['diagnosis'].include?(a) } e['reason'] = r break end end return { 'ds' => dscontents, 'rfc822' => emailsteak[1] } end