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#-*- perl -*-
#
# Copyright (C) 2001,2002 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.
#
# $FML: HeaderRewrite.pm,v 1.9 2002/01/13 21:59:08 fukachan Exp $
#
package Mail::ThreadTrack::HeaderRewrite;
use strict;
use vars qw(@ISA @EXPORT @EXPORT_OK $AUTOLOAD);
use Carp;
=head1 NAME
Mail::ThreadTrack::HeaderRewrite - header manipulation
=head1 SYNOPSIS
=head1 DESCRIPTION
=head1 METHODS
=head2 C<rewrite_header($msg)>
C<$msg> is Mail::Message object.
=cut
# Descriptions: add thread track info into $msg where
# $msg is Mail::Message object.
# Arguments: OBJ($self) OBJ($msg)
# Side Effects: modify $msg header
# Return Value: none
sub rewrite_header
{
my ($self, $msg) = @_;
my $config = $self->{ _config };
my $loctype = $config->{ thread_subject_tag_location } || 'appended';
my $header = $msg->whole_message_header();
my $tag = $self->{ _thread_subject_tag } || '';
# append the thread tag to the subject
if (defined $header->get('subject')) {
my $subject = $header->get('subject');
if ($loctype eq 'appended' && $tag) {
$header->replace('subject', $subject ." ". $tag);
}
elsif ($loctype eq 'prepended') {
$header->replace('subject', $tag ." ". $subject);
}
else {
$self->log("unknown thread_subject_tag_location type");
}
if (defined $self->{ _status_info }) {
$header->add('X-Thread-Status', $self->{ _status_info });
}
if (defined $self->{ _thread_id }) {
$header->add('X-Thread-ID', $self->{ _thread_id });
}
if (defined $self->{ _status_history }) {
$header->add('X-Thread-History', $self->{ _status_history });
}
}
}
# Descriptions: prepare history infomation for further header rewrite
# Arguments: OBJ($self) OBJ($msg)
# Side Effects: update $self->{ _status_history }
# Return Value: none
sub prepare_history_info
{
my ($self, $msg) = @_;
my $thread_id = $self->get_thread_id();
# prepare hash table tied to db_dir/*db's
my $rh = $self->{ _hash_table };
if (defined $rh->{ _articles }->{ $thread_id }) {
my $buf = '';
my (@aid) = split(/\s+/, $rh->{ _articles }->{ $thread_id });
my $sender = $rh->{ _sender }->{ $aid[0] };
my $when = $rh->{ _date }->{ $aid[0] };
# clean up
$sender =~ s/[\s\n]*$//;
$when =~ s/[\s\n]*$//;
use Mail::Message::Date;
$when = Mail::Message::Date->new($when)->mail_header_style();
$buf .= "\t\n";
$buf .= "\tthis thread is opended at article $aid[0]\n";
$buf .= "\tby $sender\n";
$buf .= "\ton $when\n";
$buf .= "\tarticle references: @aid\n";
$self->{ _status_history } = $buf;
}
}
=head1 AUTHOR
Ken'ichi Fukamachi
=head1 COPYRIGHT
Copyright (C) 2001,2002 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
Mail::ThreadTrack::HeaderRewrite appeared in fml5 mailing list driver package.
See C<http://www.fml.org/> for more details.
=cut
1;
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