1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
#!/usr/bin/perl
package IkiWiki::Plugin::blogspam;
use warnings;
use strict;
use IkiWiki 3.00;
my $defaulturl='http://test.blogspam.net:8888/';
sub import {
hook(type => "getsetup", id => "blogspam", call => \&getsetup);
hook(type => "checkcontent", id => "blogspam", call => \&checkcontent);
}
sub getsetup () {
return
plugin => {
safe => 1,
rebuild => 0,
},
blogspam_pagespec => {
type => 'pagespec',
example => 'postcomment(*)',
description => 'PageSpec of pages to check for spam',
link => 'ikiwiki/PageSpec',
safe => 1,
rebuild => 0,
},
blogspam_options => {
type => "string",
example => "blacklist=1.2.3.4,blacklist=8.7.6.5,max-links=10",
description => "options to send to blogspam server",
link => "http://blogspam.net/api/testComment.html#options",
safe => 1,
rebuild => 0,
},
blogspam_server => {
type => "string",
default => $defaulturl,
description => "blogspam server XML-RPC url",
safe => 1,
rebuild => 0,
},
}
sub checkcontent (@) {
my %params=@_;
eval q{
use RPC::XML;
use RPC::XML::Client;
};
if ($@) {
warn($@);
return undef;
}
if (exists $config{blogspam_pagespec}) {
return undef
if ! pagespec_match($params{page}, $config{blogspam_pagespec},
location => $params{page});
}
my $url=$defaulturl;
$url = $config{blogspam_server} if exists $config{blogspam_server};
my $client = RPC::XML::Client->new($url);
my @options = split(",", $config{blogspam_options})
if exists $config{blogspam_options};
# Allow short comments and whitespace-only edits, unless the user
# has overridden min-words themselves.
push @options, "min-words=0"
unless grep /^min-words=/i, @options;
# Wiki pages can have a lot of urls, unless the user specifically
# wants to limit them.
push @options, "exclude=lotsaurls"
unless grep /^max-links/i, @options;
# Unless the user specified a size check, disable such checking.
push @options, "exclude=size"
unless grep /^(?:max|min)-size/i, @options;
# This test has absurd false positives on words like "alpha"
# and "buy".
push @options, "exclude=stopwords";
my %req=(
ip => $ENV{REMOTE_ADDR},
comment => $params{content},
subject => defined $params{subject} ? $params{subject} : "",
name => defined $params{author} ? $params{author} : "",
link => exists $params{url} ? $params{url} : "",
options => join(",", @options),
site => $config{url},
version => "ikiwiki ".$IkiWiki::version,
);
my $res = $client->send_request('testComment', \%req);
if (! ref $res || ! defined $res->value) {
debug("failed to get response from blogspam server ($url)");
return undef;
}
elsif ($res->value =~ /^SPAM:(.*)/) {
eval q{use Data::Dumper};
debug("blogspam server reports ".$res->value.": ".Dumper(\%req));
return gettext("Sorry, but that looks like spam to <a href=\"http://blogspam.net/\">blogspam</a>: ").$1;
}
elsif ($res->value ne 'OK') {
debug("blogspam server failure: ".$res->value);
return undef;
}
else {
return undef;
}
}
1
|