module Sisimai::Lhost::MailMarshalSMTP
Sisimai::Lhost::MailMarshalSMTP
parses a bounce email which created by Trustwave Secure Email Gateway: formerly MailMarshal SMTP
. Methods in the module are called from only Sisimai::Message
.
Constants
- Indicators
- ReBackbone
- StartingOf
Public Class Methods
description()
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# File lib/sisimai/lhost/mailmarshalsmtp.rb, line 123 def description; return 'Trustwave Secure Email Gateway'; end
make(mhead, mbody)
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Parse bounce messages from MailMarshalSMTP
@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/mailmarshalsmtp.rb, line 23 def make(mhead, mbody) return nil unless mhead['subject'].start_with?('Undeliverable Mail: "') 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 endoferror = false # (Boolean) Flag for the end of error message regularexp = nil v = nil boundary00 = Sisimai::MIME.boundary(mhead['content-type'], 1) || '' regularexp = if boundary00.size > 0 # Convert to regular expression Regexp.new('\A' << Regexp.escape(boundary00) << '\z') else regularexp = %r/\A[ \t]*[+]+[ \t]*\z/ end 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] end next if (readcursor & Indicators[:deliverystatus]) == 0 # Your message: # From: originalsender@example.com # Subject: IIdentifica蟾ス驕俳 # # Could not be delivered because of # # 550 5.1.1 User unknown # # The following recipients were affected: # dummyuser@blabla.xxxxxxxxxxxx.com v = dscontents[-1] if cv = e.match(/\A[ ]{4}([^ ]+[@][^ ]+)\z/) # The following recipients were affected: # dummyuser@blabla.xxxxxxxxxxxx.com if v['recipient'] # There are multiple recipient addresses in the message body. dscontents << Sisimai::Lhost.DELIVERYSTATUS v = dscontents[-1] end v['recipient'] = cv[1] recipients += 1 else # Get error message lines if e == StartingOf[:error][0] # Could not be delivered because of # # 550 5.1.1 User unknown v['diagnosis'] = e elsif !v['diagnosis'].to_s.empty? && endoferror == false # Append error messages endoferror = true if e.start_with?(StartingOf[:rcpts][0]) next if endoferror v['diagnosis'] << ' ' << e else # Additional Information # ====================== # Original Sender: <originalsender@example.com> # Sender-MTA: <10.11.12.13> # Remote-MTA: <10.0.0.1> # Reporting-MTA: <relay.xxxxxxxxxxxx.com> # MessageName: <B549996730000.000000000001.0003.mml> # Last-Attempt-Date: <16:21:07 seg, 22 Dezembro 2014> if cv = e.match(/\AOriginal Sender:[ \t]+[<](.+)[>]\z/) # Original Sender: <originalsender@example.com> # Use this line instead of "From" header of the original # message. emailsteak[1] << ('From: ' << cv[1] << "\n") elsif cv = e.match(/\ASender-MTA:[ \t]+[<](.+)[>]\z/) # Sender-MTA: <10.11.12.13> v['lhost'] = cv[1] elsif cv = e.match(/\AReporting-MTA:[ \t]+[<](.+)[>]\z/) # Reporting-MTA: <relay.xxxxxxxxxxxx.com> v['rhost'] = cv[1] elsif cv = e.match(/\A\s+(From|Subject):\s*(.+)\z/) # From: originalsender@example.com # Subject: ... emailsteak[1] << sprintf("%s: %s\n", cv[1], cv[2]) end end end end return nil unless recipients > 0 dscontents.each { |e| e['diagnosis'] = Sisimai::String.sweep(e['diagnosis']) } return { 'ds' => dscontents, 'rfc822' => emailsteak[1] } end