'bottrop',
'author'=>'L. Diener - lorenzd<at>gmail.com',
'url'=>'http://halcy.de/pages/bottrop',
'description'=>'Very simple spambot trap.',
'version'=>'1.0'
);
# Set up hooks
$wgHooks['ArticleSave'][] = array( 'spam_trap' );
$wgHooks['EditPage::showEditForm:fields'][] = 'add_spam_trap';
# Makes random strings.
function random_string() {
$chars = "abcdefghijkmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_";
$i = mt_rand( 20, 50 );
$string = "";
while( $i > 0 ) {
$string .= $chars{ mt_rand( 0, strlen( $chars ) ) };
$i--;
}
return $string;
}
# Spring the trap if something does not feel alright.
# This only displays "edit conflict" errors, but meh.
function spam_trap( &$article, &$user, &$text, &$summary, $minor, $watch, $sectionanchor, &$flags ) {
global $bottrop_field_name, $bottrop_field_value;
# Enforce setting changes to ensure effectiveness for at least a little while.
if( $bottrop_field_name == "changeme" ) {
return( "
ERROR, please change the field name and value in bottrop.php. If you're not the person running this web site, tell whoever _is_ running it of this.
" );
}
if ( !( $_POST['name'] === "" && $_POST[$bottrop_field_name] === $bottrop_field_value ) ) {
return( "You triggered the bot trap, try refreshing the page and then try again..." );
}
return( true );
}
# Add the trapping code.
function add_spam_trap( &$q, &$out ) {
global $bottrop_field_name, $bottrop_field_value;
# This should be reasonably complex to parse without a full blown SGML and CSS parser.
# Yes, I know this is silly. It might still put off some people.
$css_name_1 = random_string();
$css_name_2 = random_string();
$out->addHTML('