diff options
| -rw-r--r-- | IkiWiki/Plugin/blogspam.pm | 111 | ||||
| -rw-r--r-- | debian/changelog | 2 | ||||
| -rw-r--r-- | doc/plugins/blogspam.mdwn | 23 | ||||
| -rw-r--r-- | doc/todo/anti-spam_protection.mdwn | 11 | ||||
| -rwxr-xr-x | t/syntax.t | 4 |
5 files changed, 149 insertions, 2 deletions
diff --git a/IkiWiki/Plugin/blogspam.pm b/IkiWiki/Plugin/blogspam.pm new file mode 100644 index 000000000..6e68a9856 --- /dev/null +++ b/IkiWiki/Plugin/blogspam.pm @@ -0,0 +1,111 @@ +#!/usr/bin/perl +package IkiWiki::Plugin::blogspam; + +use warnings; +use strict; +use IkiWiki 3.00; +require RPC::XML; +require RPC::XML::Client; + +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=@_; + + if (exists $config{blogspam_pagespec}) { + return undef + if ! pagespec_match($params{page}, $config{blogspam_pagespec}, + location => $params{page}); + } + + my $url=$defaulturl; + $url = $params{blogspam_server} if exists $params{blogspam_server}; + my $client = RPC::XML::Client->new($url); + + my @options = split(",", $params{blogspam_options}) + if exists $params{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"; + + # blogspam API does not have a field for author url, so put it in + # the content to be checked. + if (exists $params{url}) { + $params{content}.="\n".$params{url}; + } + + my $res = $client->send_request('testComment', { + ip => $ENV{REMOTE_ADDR}, + comment => $params{content}, + subject => defined $params{subject} ? $params{subject} : "", + name => defined $params{author} ? $params{author} : "", + options => join(",", @options), + site => $config{url}, + version => "ikiwiki ".$IkiWiki::version, + }); + + if (! ref $res || ! defined $res->value) { + debug("failed to get response from blogspam server ($url)"); + return undef; + } + elsif ($res->value =~ /^SPAM:(.*)/) { + return gettext("Sorry, but that looks like spam to <a href=\"http://blogspam.net/\">blogspam</a>: ").$1; + } + elsif ($res->value ne 'OK') { + debug(gettext("blogspam server failure: ").$res->value); + return undef; + } + else { + return undef; + } +} + +1 diff --git a/debian/changelog b/debian/changelog index b75fe6afc..cb362d6e2 100644 --- a/debian/changelog +++ b/debian/changelog @@ -20,6 +20,8 @@ ikiwiki (3.02) UNRELEASED; urgency=low in blogging. * checkcontent: New hook, can be used to implement arbitrary content filters, including spam filters. + * blogspam: New plugin, adding spam filtering for page editing / comment + posting using the BlogSpam.net API. -- Joey Hess <joeyh@debian.org> Tue, 06 Jan 2009 15:02:52 -0500 diff --git a/doc/plugins/blogspam.mdwn b/doc/plugins/blogspam.mdwn new file mode 100644 index 000000000..307d4646d --- /dev/null +++ b/doc/plugins/blogspam.mdwn @@ -0,0 +1,23 @@ +[[!template id=plugin name=blogspam author="[[Joey]]"]] +[[!tag type/auth]] + +This plugin adds antispam support to ikiwiki, using the +[blogspam.net](http://blogspam.net/) API. Both page edits and +[[comment|comments]] postings can be checked for spam. Currently, +detected spam is not saved for human review, it is just rejected. + +You can control how content is tested via the `blogspam_options` +setting. By default, the options are configured in a way that is +appropriate for wiki content. This includes turning off some of the +more problimatic tests. + +The `blogspam_pagespec` setting is a [[ikiwiki/PageSpec]] that can be +used to configure which pages are checked for spam. The default is to check +all edits. If you only want to check [[comments]] (not wiki page edits), +set it to "postcomment(*)". + +By default, the blogspam.net server is used to do the spam checking. To +change this, the `blogspam_server` option can be set to the url for a +different server implementing the same API. Note that content is sent +unencrypted over the internet to the server, and the server sees +the full text of the content. diff --git a/doc/todo/anti-spam_protection.mdwn b/doc/todo/anti-spam_protection.mdwn index cb45faee5..b0524be5f 100644 --- a/doc/todo/anti-spam_protection.mdwn +++ b/doc/todo/anti-spam_protection.mdwn @@ -17,3 +17,14 @@ Cheers, You might look at the Wikipedia page on "Spam\_in\_blogs" for more ideas. In particular, would it be possible to force a subset of the pages (by regex, but you'd choose the regex to match those pages which are publicly writable) to use rel="nofollow" in all links. > I just wanted to leave a link here to the [[todo/require_CAPTCHA_to_edit]] plugin patch. Unfortunately that plugin currently interacts badly with the openid plugin. -- [[Will]] + + +--- + +Ikiwiki now has a checkcontent hook that plugins can use to see content +that is being entered and check it for spam/whatever. + +There is a blogspam plugin that uses the blogspam.org service +to check for common spam signatures. --[[Joey]] + +[[done]] diff --git a/t/syntax.t b/t/syntax.t index d09d17f7f..9d5cbc373 100755 --- a/t/syntax.t +++ b/t/syntax.t @@ -5,8 +5,8 @@ use Test::More; my @progs="ikiwiki.in"; my @libs="IkiWiki.pm"; -# monotone, external, amazon_s3 skipped since they need perl modules -push @libs, map { chomp; $_ } `find IkiWiki -type f -name \\*.pm | grep -v monotone.pm | grep -v external.pm | grep -v amazon_s3.pm`; +# monotone, external, blogspam, amazon_s3 skipped since they need perl modules +push @libs, map { chomp; $_ } `find IkiWiki -type f -name \\*.pm | grep -v monotone.pm | grep -v external.pm | grep -v blogspam.pm | grep -v amazon_s3.pm`; push @libs, 'IkiWiki/Plugin/skeleton.pm.example'; plan(tests => (@progs + @libs)); |