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# -*- Mode: perl; indent-tabs-mode: nil -*-
#
# The contents of this file are subject to the Mozilla Public
# License Version 1.1 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
# implied. See the License for the specific language governing
# rights and limitations under the License.
#
# The Original Code is the Profanivore Bugzilla Extension.
#
# The Initial Developer of the Original Code is the Mozilla Foundation.
# Portions created by the Initial Developer are Copyright (C) 2010 the
# Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Gervase Markham <gerv@gerv.net>
package Bugzilla::Extension::Profanivore;
use 5.10.1;
use strict;
use warnings;
use base qw(Bugzilla::Extension);
use Email::MIME::ContentType qw(parse_content_type);
use Regexp::Common 'RE_ALL';
use Bugzilla::Util qw(is_7bit_clean);
our $VERSION = '0.01';
sub bug_format_comment {
my ($self, $args) = @_;
my $regexes = $args->{'regexes'};
my $comment = $args->{'comment'};
# Censor profanities if the comment author is not reasonably trusted.
# However, allow people to see their own profanities, which might stop
# them immediately noticing and trying to go around the filter. (I.e.
# it tries to stop an arms race starting.)
if ($comment &&
!$comment->author->in_group('editbugs') &&
$comment->author->id != Bugzilla->user->id)
{
push (@$regexes, {
match => RE_profanity('-i'),
replace => \&_replace_profanity
});
}
}
sub _replace_profanity {
# We don't have access to the actual profanity.
return "****";
}
sub mailer_before_send {
my ($self, $args) = @_;
my $email = $args->{'email'};
my $author = $email->header("X-Bugzilla-Who");
my $recipient = $email->header("To");
if ($author && $recipient && lc($author) ne lc($recipient)) {
my $email_suffix = Bugzilla->params->{'emailsuffix'};
if ($email_suffix ne '') {
$recipient =~ s/\Q$email_suffix\E$//;
$author =~ s/\Q$email_suffix\E$//;
}
$author = new Bugzilla::User({ name => $author });
if ($author &&
$author->id &&
!$author->in_group('editbugs'))
{
# Multipart emails
if (scalar $email->parts > 1) {
$email->walk_parts(sub {
my ($part) = @_;
return if $part->parts > 1; # Top-level
# do not filter attachments such as patches, etc.
if ($part->header('Content-Disposition')
&& $part->header('Content-Disposition') =~ /attachment/)
{
return;
}
_fix_encoding($part);
my $body = $part->body_str;
my $new_body;
if ($part->content_type =~ /^text\/html/) {
$new_body = _filter_html($body);
if ($new_body ne $body) {
# HTML::Tree removes unnecessary whitespace,
# resulting in very long lines. We need to use
# quoted-printable encoding to avoid exceeding
# email's maximum line length.
$part->encoding_set('quoted-printable');
}
}
elsif ($part->content_type =~ /^text\/plain/) {
$new_body = _filter_text($body);
}
if ($new_body && $new_body ne $body) {
$part->body_str_set($new_body);
}
});
}
# Single part email
else {
_fix_encoding($email);
$email->body_str_set(_filter_text($email->body_str));
}
}
}
}
sub _fix_encoding {
my $part = shift;
# don't touch the top-level part of multi-part mail
return if $part->parts > 1;
# nothing to do if the part already has a charset
my $ct = parse_content_type($part->content_type);
my $charset = $ct->{attributes}{charset}
? $ct->{attributes}{charset}
: '';
return unless !$charset || $charset eq 'us-ascii';
if (Bugzilla->params->{utf8}) {
$part->charset_set('UTF-8');
my $raw = $part->body_raw;
if (utf8::is_utf8($raw)) {
utf8::encode($raw);
$part->body_set($raw);
}
}
$part->encoding_set('quoted-printable');
}
sub _filter_text {
my $text = shift;
my $offensive = RE_profanity('-i');
$text =~ s/$offensive/****/g;
return $text;
}
sub _filter_html {
my $html = shift;
my $tree = HTML::Tree->new->parse_content($html);
my $comments_div = $tree->look_down( _tag => 'div', id => 'comments' );
return $html if !$comments_div;
my @comments = $comments_div->look_down( _tag => 'pre' );
my $dirty = 0;
foreach my $comment (@comments) {
_filter_html_node($comment, \$dirty);
}
if ($dirty) {
$html = $tree->as_HTML;
$tree->delete;
}
return $html;
}
sub _filter_html_node {
my ($node, $dirty) = @_;
my $content = [ $node->content_list ];
foreach my $item_r ($node->content_refs_list) {
if (ref $$item_r) {
_filter_html_node($$item_r);
} else {
my $new_text = _filter_text($$item_r);
if ($new_text ne $$item_r) {
$$item_r = $new_text;
$$dirty = 1;
}
}
}
}
__PACKAGE__->NAME;
|
