# the goal of this was to simplify the python script by matching
# variables in procmail and then passing them in to the python
# script. note that procmail variables are available as environment
# variables in subprocesses. i thought maybe procmail matching would be
# faster or more accurate because 'it knows stuff', but maybe that's not
# true.

# ^FROM_MAILER
#    This should cover most messages from mailer programs (bounces etc.). 
# ^FROM_DAEMON
#    This is an expanded version of ^FROM_MAILER which covers a broader
#    range of machine-generated messages, notably including most mailing
#    lists and other (benign) bulk e-mail.

:0
{
  :0
  * ^Subject:[	 ]*\/[^	 ].*
  {
    SUBJECT=$MATCH
  }
  :0
  * ^To:[	 ]*\/[^	 ].*
  {
    TO=$MATCH
  }
  :0
  * ^From:[	 ]*\/[^	 ].*
  {
    FROM=$MATCH
  }

  # Call shell... -rt will parse return address
  # according to RFC rules. Note we only process HEADER
  :0 h
  SENDER=|formail -b -rtzxTo:
  # get the From: address as an address component ONLY (no comments)
  :0 h
  CLEANFROM=|formail -IReply-To: -rtzxTo:
  :0
  # username portion
  :0
  * CLEANFROM ?? ^\/[^@]+
  {
    FROM_USER=$MATCH
  }
#:0:
#* !^FROM_DAEMON
| ./request_handler.py SUBJECT SENDER
}