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wakaba |
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=head1 NAME
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Message::Partial --- Perl module for partial message defined by MIME
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(message/partial)
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=cut
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package Message::Partial;
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use strict;
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use vars qw(%OPTION $VERSION);
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$VERSION=do{my @r=(q$Revision: 1.17 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
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require Message::Entity;
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require Message::Header;
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require Message::Field::MsgID;
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%OPTION = (
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-part_length => 1024,
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-subject_format_pattern => '%s (%d/%d)',
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);
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sub fragmentate ($;%) {
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my $msg = shift;
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my %params = @_;
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my %option = %OPTION;
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for (grep {/^-/} keys %params) {$option{$_} = $params{$_}}
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if (ref $msg) {
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$msg = $msg->clone;
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} else {
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$msg = parse Message::Entity $msg;
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}
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my @copy_field;
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my %cf = (subject => 1, encrypted => 1, 'mime-version' => 1, 'message-id' => 1);
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$msg->option (force_mime_entity => 1);
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$msg->stringify; ## Make fill_* work
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$msg->header->scan (sub {
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my $i = $_[1];
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my $rfc822 = $Message::Header::NS_phname2uri{rfc822};
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if ($_[1]->{ns} eq $Message::Header::NS_phname2uri{content}) {
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push @copy_field, {%{$_[1]}};
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$_[1]->{name} = undef;
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} elsif ($_[1]->{ns} eq $rfc822 && $cf{$_[1]->{name}}) {
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#push @copy_field, Message::Util::make_clone ($_[1]);
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##$_[1]->{name} = undef; ## Don't remove to keep compatible w/ RFC 1341/1521
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push @copy_field, {%{$_[1]}};
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$_[1]->{name} = undef;
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}
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});
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my $outer_header = $msg->header;
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my $inner_header = new Message::Header;
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$inner_header->{value} = \@copy_field; ## Warning: direct access to internal structure!
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$msg->header ($inner_header);
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my @msg = split /\x0D\x0A/, $msg->stringify (-accept_cte => '7bit');
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my @pbody = ('');
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for (@msg) {
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if (length $pbody[$#pbody] > $option{-part_length}) {
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push @pbody, '';
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}
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$pbody[$#pbody] .= $_."\x0D\x0A";
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}
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my @pmsg;
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my $subject = $inner_header->field ('subject', -new_item_unless_exist => 0);
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my $ct = $outer_header->field ('content-type');
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$ct->media_type ('message/partial');
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my $as = $outer_header->field ('resent-from', -new_item_unless_exist => 0)
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|| $outer_header->field ('from', -new_item_unless_exist => 0);
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$as = $as->addr_spec if ref $as;
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$as ||= '[email protected]';
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my $pid = Message::Field::MsgID->new (addr_spec => $as);
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$ct->parameter (id => $pid->content);
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my $first_mid;
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for my $i (0..$#pbody) {
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$pmsg[$i] = new Message::Entity;
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$pmsg[$i]->header ($outer_header->clone);
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my $hdr = $pmsg[$i]->header;
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$hdr->replace (subject
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=> sprintf ($option{-subject_format_pattern}, $subject, $i+1, $#pbody+1));
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my $ct = $hdr->field ('content-type');
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$ct->parameter (number => $i +1);
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$ct->parameter (total => $#pbody +1);
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$pmsg[$i]->body ($pbody[$i]);
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if ($i == 0) {
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$pmsg[$i]->stringify;
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$first_mid = $hdr->field ('message-id');
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} else {
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$hdr->field ('references')->add ($first_mid);
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}
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}
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@pmsg;
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}
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=head1 SEE ALSO
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L<Message::Entity>
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RFC 1341 E<lt>urn:ietf:rfc:1341E<gt>,
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RFC 1521 E<lt>urn:ietf:rfc:1521E<gt>,
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RFC 2046 E<lt>urn:ietf:rfc:2046E<gt>
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RFC 822 E<lt>urn:ietf:rfc:822E<gt>,
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RFC 2822 E<lt>urn:ietf:rfc:2822E<gt>
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=head1 LICENSE
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Copyright 2002 wakaba E<lt>[email protected]<gt>.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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=head1 CHANGE
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See F<ChangeLog>.
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$Date: 2002/06/01 05:40:55 $
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=cut
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1;
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Revision Log