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#-*- perl -*-
#
# 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.
#
# $FML: MIME.pm,v 1.12 2001/05/28 16:17:12 fukachan Exp $
#
package FML::MIME;
use strict;
use vars qw(@ISA @EXPORT @EXPORT_OK);
use Carp;
=head1 NAME
FML::MIME - handle a MIME encoded string
=head1 SYNOPSIS
use FML::MIME qw(decode_mime_string encode_mime_string);
$decoded = decode_mime_string( $message );
=head1 DESCRIPTION
MIME utilities to encode and decode string.
It uses C<MIME::Base64> and C<MIME::QuotedPrint> as encoding/decoding
engines.
=head1 METHODS
=cut
require Exporter;
@ISA = qw(Exporter);
@EXPORT_OK = qw(decode_mime_string encode_mime_string);
=head2 C<decode_mime_string(string, [$options])>
decode a base64/quoted-printable encoded string to a plain message.
The encoding method is automatically detected.
C<$options> is a HASH REFERENCE.
You can specify the charset of the string to return
by $options->{ charset }.
=cut
sub decode_mime_string
{
my ($str, $options) = @_;
my $charset = $options->{ 'charset' } || 'euc-japan';
if ($charset eq 'euc-japan') {
use MIME::Base64;
if ($str =~ /=\?ISO\-2022\-JP\?B\?(\S+\=*)\?=/i) {
$str =~ s/=\?ISO\-2022\-JP\?B\?(\S+\=*)\?=/decode_base64($1)/gie;
}
use MIME::QuotedPrint;
if ($str =~ /=\?ISO\-2022\-JP\?Q\?(\S+\=*)\?=/i) {
$str =~ s/=\?ISO\-2022\-JP\?Q\?(\S+\=*)\?=/decode_qp($1)/gie;
}
}
use Jcode;
&Jcode::convert(\$str, 'euc');
$str;
}
=head2 C<encode_mime_string(string, [$options])>
encode the C<string> by the encoder $options->{ encode }.
The encode is base64 by default.
C<options> is a HASH REFERENCE.
You can specify the charset of string to return
by $options->{ charset }.
=cut
sub encode_mime_string
{
my ($str, $options) = @_;
my $charset = $options->{ 'charset' } || 'iso-2022-jp';
my $encode = $options->{ 'encode' } || 'base64';
my $header = '=?'. $charset;
my $trailor = '?=';
use Jcode;
&Jcode::convert(\$str, 'jis');
use IM::Iso2022jp;
if ($encode eq 'base64') {
line_iso2022jp_mimefy($str);
}
elsif ($encode eq 'qp') {
$main::HdrQEncoding = 1;
line_iso2022jp_mimefy($str);
$main::HdrQEncoding = 0;
}
return $str;
}
=head1 SEE ALSO
L<Jcode>,
L<MIME::Base64>,
L<MIME::QuotedPrint>.
=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::MIME appeared in fml5 mailing list driver package.
See C<http://www.fml.org/> for more details.
=cut
1;
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