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#
# -*- Perl -*-
# $Id: mhonarc.pl,v 1.23.8.8 2008-05-09 07:52:21 opengl2772 Exp $
# Copyright (C) 1997-2000 Satoru Takabayashi ,
# 1999 NOKUBI Takatsugu ,
# 2002 Earl Hood ,
# 2000-2008 Namazu Project All rights reserved.
# This is free software with ABSOLUTELY NO WARRANTY.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either versions 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA
#
# This file must be encoded in EUC-JP encoding
#
package mhonarc;
use strict;
require 'util.pl';
require 'gfilter.pl';
require 'html.pl';
require 'mailnews.pl';
#
# This pattern specifies MHonArc's file names.
# NOTE: MHonArc does allow one to customize the filename for message files.
# So we make the regex a little flexible to handle common variations.
#
my $MHONARC_MESSAGE_FILE = '\bmsg\d+\.s?html(?:\.gz)?\Z';
sub mediatype() {
return ('text/html; x-type=mhonarc');
}
sub status() {
# The check of a dependence filter.
return 'no' if (html::status() ne 'yes');
return 'no' if (mailnews::status() ne 'yes');
return 'yes';
}
sub recursive() {
return 0;
}
sub pre_codeconv() {
return 1;
}
sub post_codeconv () {
return 0;
}
sub add_magic ($) {
my ($magic) = @_;
$magic->addMagicEntry('0 string \<!--\ MHonArc text/html; x-type=mhonarc');
return;
}
sub filter ($$$$$) {
my ($orig_cfile, $contref, $weighted_str, $headings, $fields)
= @_;
my $cfile = defined $orig_cfile ? $$orig_cfile : '';
util::vprint("Processing MHonArc file ...\n");
if (($cfile !~ /$MHONARC_MESSAGE_FILE/o) ||
($$contref !~ /\A\s*<!-- MHonArc /))
{
return "is not a MHonArc message file! skipped."; # error
}
mhonarc_filter($contref, $weighted_str, $fields);
html::html_filter($contref, $weighted_str, $fields, $headings);
$$contref =~ s/^\s+//;
mailnews::uuencode_filter($contref);
mailnews::mailnews_filter($contref, $weighted_str, $fields);
mailnews::mailnews_citation_filter($contref, $weighted_str);
gfilter::line_adjust_filter($contref);
gfilter::line_adjust_filter($weighted_str);
gfilter::white_space_adjust_filter($contref);
gfilter::show_filter_debug_info($contref, $weighted_str,
$fields, $headings);
return undef;
}
# Assume a normal message files by MHonArc v2.x
sub mhonarc_filter ($$) {
my ($contref, $weighted_str, $fields) = @_;
my $mha_fields = { };
my $pos = index($$contref, '<!--X-Head-End-->');
if ($pos > 0) {
load_mhonarc_fields($mha_fields, $weighted_str,
substr($$contref, 0, $pos));
}
# Strip off front-matter
$pos = index($$contref, '<!--X-Head-of-Message-->');
substr($$contref, 0, $pos + length('<!--X-Head-of-Message-->')) = "";
# Strip off end-matter
$pos = index($$contref, '<!--X-Body-of-Message-End-->');
substr($$contref, $pos) = "";
# Extract message header for separate processing, will be added back
my $msg_header = "";
$pos = index($$contref, '<!--X-Head-of-Message-End-->');
if ($pos >= 0) {
$msg_header = substr($$contref, 0, $pos);
substr($$contref, 0, $pos) = "";
}
# Strip out stuff between header and body
$pos = index($$contref, '<!--X-Body-of-Message-->');
substr($$contref, 0, $pos + length('<!--X-Body-of-Message-->')) = "";
# Reformat header to make it nice for mailnews filter
if ($msg_header ne "") {
$msg_header =~ s/\A\s+//;
html::remove_html_elements(\$msg_header);
$msg_header =~ s/^\s*([\w\-_]+:)/$1/gm;
$msg_header =~ s/^([\w\-_]+:)(?:[^\n\S]*\n[^\n\S]*)+/$1 /gm;
}
# Format MHonArc X comment extracted headers as regular headers
my $mha_header = "";
my($fld_name, $fld_value);
while (($fld_name, $fld_value) = each %$mha_fields) {
$mha_header .= join('', $fld_name, ': ', $fld_value, "\n");
}
# Added header back to content string.
$$contref = $mha_header . $msg_header . "\n" . $$contref;
# Return extract MHonArc fields
#$mha_fields;
}
sub load_mhonarc_fields {
my $fields = shift;
my $weighted_str = shift;
my $mha_head = shift;
if ($mha_head =~ /<!--X-Subject: ([^-]+) -->/) {
my $subject = uncommentize($1);
# codeconv::toeuc(\$subject);
codeconv::codeconv_document(\$subject);
1 while ($subject =~ s/\A\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*//i);
$subject =~ s/\A\s*\[[^\]]+\]\s*//;
$fields->{'subject'} = $subject;
}
if ($mha_head =~ /<!--X-From-R13: ([^-]+) -->/) {
my $from = mrot13(uncommentize($1));
# codeconv::toeuc(\$from);
codeconv::codeconv_document(\$from);
$fields->{'from'} = $from;
} elsif ($mha_head =~ /<!--X-From: ([^-]+) -->/) {
my $from = uncommentize($1);
# codeconv::toeuc(\$from);
codeconv::codeconv_document(\$from);
$fields->{'from'} = $from;
}
if ($mha_head =~ /<!--X-Message-Id: ([^-]+) -->/) {
$fields->{'message-id'} = '<' . uncommentize($1). '>';
}
if ($mha_head =~ /<!--X-Date: ([^-]+) -->/) {
$fields->{'date'} = uncommentize($1);
}
}
sub uncommentize {
my($txt) = $_[0];
$txt =~ s/&#(\d+);/pack("C",$1)/ge;
$txt;
}
sub mrot13 {
my $str = shift;
$str =~ tr/@A-Z[a-z/N-Z[@A-Mn-za-m/;
$str;
}
1;
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