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#-*- perl -*-
#
# Copyright (C) 2000 Ken'ichi Fukamachi
# All rights reserved. This program is free software; you can
# redistribute it and/or modify it under the same terms as Perl itself.
#
# $Id$
# $FML$
#
package FML::Parse;
use vars qw($InComingMessage);
use strict;
use Carp;
use FML::Header;
use MailingList::Messages;
use FML::Config;
use FML::Log qw(Log LogWarn LogError);
=head1 NAME
FML::Parse - parse the incoming message
=head1 SYNOPSIS
($r_header, $r_body) = new FML::Parse \*STDIN;
=head1 DESCRIPTION
FML::Parse parses the incoming message.
C<new()> analyses the data injected from STDIN channel and
split it to a set of mail header and body.
C<new()> returns a set of hash references.
C<$r_header> is the reference to a header object, which is
C<Mail::Header> object.
C<$r_body> is reference to the scalar mail body variable, which is
C<MailingList::Messages> object.
=head1 METHODS
=item new( fd )
C<fd> is the file handle.
Normally C<fd> is the handle for STDIN channel.
=cut
sub new
{
my ($self, $curproc, $fd) = @_;
my $me = {};
bless $me, $self;
# return ( $ref_to_mail_header, $ref_to_mail_body, $error_code);
return $me->_parse($curproc, $fd);
}
# return ( $ref_to_mail_header, $ref_to_mail_body, $error_code);
sub _parse
{
my ($self, $curproc, $fd) = @_;
my ($header, $header_size);
my $body_size;
my $total_buffer_size;
my ($p, $buf);
# extract header and put it to $header
while ($p = sysread($fd, $_, 1024)) {
$total_buffer_size += $p;
$buf .= $_;
if (($p = index($buf, "\n\n", 0)) > 0) {
$header = substr($buf, 0, $p + 1);
$header_size = $p + 1;
$InComingMessage = substr($buf, $p + 2);
last;
}
}
# extract mail body and put it to $FML::Parse::InComingMessage
while ($p = sysread($fd, $_, 1024)) {
$total_buffer_size += $p;
$InComingMessage .= $_;
}
# read the message (mail body) from the incoming mail
$body_size = length($InComingMessage);
Log("read total=$total_buffer_size header=$header_size body=$body_size");
my @h = split(/\n/, $header);
my $x;
for $x (@h) { $x .= "\n";}
# save unix-from (mail-from) in PCB and remove it in the header
if ($h[0] =~ /^From\s/o) {
my $pcb = $curproc->{ pcb };
$pcb->set('credential', 'unix-from', $h[0]);
shift @h;
}
# extract each field from the header array
my $r_header = new FML::Header \@h, Modify => 0;
my $r_body = new MailingList::Messages {
boundary => $r_header->mime_boundary(),
content_type => $r_header->content_type(),
content => \$InComingMessage,
};
# return ( $ref_to_mail_header, $ref_to_mail_body, $error_code);
return ($r_header, $r_body, 0);
}
=head1 SEE ALSO
L<Mail::Header>,
L<FML::Header>,
L<MailingList::Messages>,
L<FML::Config>,
L<FML::Log>
=head1 AUTHOR
Ken'ichi Fukamachi
=head1 COPYRIGHT
Copyright (C) 2001 Ken'ichi Fukamachi
All rights reserved. This program is free software; you can
redistribute it and/or modify it under the same terms as Perl itself.
=head1 HISTORY
FML::Parse appeared in fml5 mailing list driver package.
See C<http://www.fml.org/> for more details.
=cut
1;
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