module Sisimai::Lhost::MXLogic
Sisimai::Lhost::MXLogic
parses a bounce email which created by McAfee
SaaS (formerly MX Logic). Methods in the module are called from only Sisimai::Message
.
Constants
- DelayedFor
- Indicators
- MessagesOf
- ReBackbone
- ReCommands
- StartingOf
Public Class Methods
description()
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# File lib/sisimai/lhost/mxlogic.rb, line 203 def description; return 'McAfee SaaS'; end
make(mhead, mbody)
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Parse bounce messages from MXLogic
@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/mxlogic.rb, line 77 def make(mhead, mbody) # X-MX-Bounce: mta/src/queue/bounce # X-MXL-NoteHash: ffffffffffffffff-0000000000000000000000000000000000000000 # X-MXL-Hash: 4c9d4d411993da17-bbd4212b6c887f6c23bab7db4bd87ef5edc00758 match = 0 match += 1 if mhead['x-mx-bounce'] match += 1 if mhead['x-mxl-hash'] match += 1 if mhead['x-mxl-notehash'] match += 1 if mhead['from'].start_with?('Mail Delivery System') match += 1 if mhead['subject'] =~ %r{(?: Mail[ ]delivery[ ]failed(:[ ]returning[ ]message[ ]to[ ]sender)? |Warning:[ ]message[ ][^ ]+[ ]delayed[ ]+ |Delivery[ ]Status[ ]Notification ) }x return nil unless match > 0 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 localhost0 = '' # (String) Local MTA 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 == StartingOf[:message][0] next end next if (readcursor & Indicators[:deliverystatus]) == 0 next if e.empty? # This message was created automatically by mail delivery software. # # A message that you sent could not be delivered to one or more of its # recipients. This is a permanent error. The following address(es) failed: # # kijitora@example.jp # SMTP error from remote mail server after RCPT TO:<kijitora@example.jp>: # host neko.example.jp [192.0.2.222]: 550 5.1.1 <kijitora@example.jp>... User Unknown v = dscontents[-1] if cv = e.match(/\A[ \t]*[<]([^ ]+[@][^ ]+)[>]:(.+)\z/) # A message that you have sent could not be delivered to one or more # recipients. This is a permanent error. The following address failed: # # <kijitora@example.co.jp>: 550 5.1.1 ... 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 elsif dscontents.size == recipients # Error message next if e.empty? v['diagnosis'] << e + ' ' end end return nil unless recipients > 0 unless mhead['received'].empty? # Get the name of local MTA # Received: from marutamachi.example.org (c192128.example.net [192.0.2.128]) if cv = mhead['received'][-1].match(/from[ ]([^ ]+) /) then localhost0 = cv[1] end end dscontents.each do |e| e['lhost'] = localhost0 e['diagnosis'] = Sisimai::String.sweep(e['diagnosis'].gsub(/[-]{2}.*\z/, '')) unless e['rhost'] # Get the remote host name # host neko.example.jp [192.0.2.222]: 550 5.1.1 <kijitora@example.jp>... User Unknown if cv = e['diagnosis'].match(/host[ ]+([^ \t]+)[ ]\[.+\]:[ ]/) then e['rhost'] = cv[1] end unless e['rhost'] # Get localhost and remote host name from Received header. e['rhost'] = Sisimai::RFC5322.received(mhead['received'][-1]).pop unless mhead['received'].empty? end end unless e['command'] # Get the SMTP command name for the session ReCommands.each do |r| # Verify each regular expression of SMTP commands if cv = e['diagnosis'].match(r) e['command'] = cv[1].upcase break end end # Detect the reason of bounce if e['command'] == 'MAIL' # MAIL | Connected to 192.0.2.135 but sender was rejected. e['reason'] = 'rejected' elsif %w[HELO EHLO].index(e['command']) # HELO | Connected to 192.0.2.135 but my name was rejected. e['reason'] = 'blocked' else # Verify each regular expression of session errors MessagesOf.each_key do |r| # Check each regular expression next unless MessagesOf[r].any? { |a| e['diagnosis'].include?(a) } e['reason'] = r break end unless e['reason'] # The reason "expired" e['reason'] = 'expired' if DelayedFor.any? { |a| e['diagnosis'].include?(a) } end end end end return { 'ds' => dscontents, 'rfc822' => emailsteak[1] } end