spamfilters)) {
return;
}
self::$filters = new dcSpamFilters($core);
self::$filters->init($core->spamfilters);
}
public static function isSpam($cur)
{
self::initFilters();
self::$filters->isSpam($cur);
}
public static function trainFilters($blog,$cur,$rs)
{
$status = null;
# From ham to spam
if ($rs->comment_status != -2 && $cur->comment_status == -2) {
$status = 'spam';
}
# From spam to ham
if ($rs->comment_status == -2 && $cur->comment_status == 1) {
$status = 'ham';
}
# the status of this comment has changed
if ($status)
{
$filter_name = $rs->exists('comment_spam_filter') ? $rs->comment_spam_filter : null;
self::initFilters();
self::$filters->trainFilters($rs,$status,$filter_name);
}
}
public static function statusMessage($rs)
{
if ($rs->exists('comment_status') && $rs->comment_status == -2)
{
$filter_name = $rs->exists('comment_spam_filter') ? $rs->comment_spam_filter : null;
self::initFilters();
return
''.__('This comment is a spam:').' '.
self::$filters->statusMessage($rs,$filter_name).'
';
}
}
public static function dashboardIcon($core, $icons)
{
if (($count = self::countSpam($core)) > 0) {
$str = ($count > 1) ? __('(including %d spam comments)') : __('(including %d spam comment)');
$icons['comments'][0] .= '
'.sprintf($str,$count).'';
}
}
public static function dashboardIconTitle($core)
{
if (($count = self::countSpam($core)) > 0) {
$str = ($count > 1) ? __('(including %d spam comments)') : __('(including %d spam comment)');
return '
'.sprintf($str,$count).'';
} else {
return '';
}
}
public static function countSpam($core)
{
return $core->blog->getComments(array('comment_status'=>-2),true)->f(0);
}
public static function countPublishedComments($core)
{
return $core->blog->getComments(array('comment_status'=>1),true)->f(0);
}
public static function delAllSpam($core, $beforeDate = null)
{
$strReq =
'SELECT comment_id '.
'FROM '.$core->prefix.'comment C '.
'JOIN '.$core->prefix.'post P ON P.post_id = C.post_id '.
"WHERE blog_id = '".$core->con->escape($core->blog->id)."' ".
'AND comment_status = -2 ';
if ($beforeDate) {
$strReq .= 'AND comment_dt < \''.$beforeDate.'\' ';
}
$rs = $core->con->select($strReq);
$r = array();
while ($rs->fetch()) {
$r[] = (integer) $rs->comment_id;
}
if (empty($r)) {
return;
}
$strReq =
'DELETE FROM '.$core->prefix.'comment '.
'WHERE comment_id '.$core->con->in($r).' ';
$core->con->execute($strReq);
}
public static function getUserCode($core)
{
$code =
pack('a32',$core->auth->userID()).
pack('H*',crypt::hmac(DC_MASTER_KEY,$core->auth->getInfo('user_pwd')));
return bin2hex($code);
}
public static function checkUserCode($core,$code)
{
$code = pack('H*',$code);
$user_id = trim(@pack('a32',substr($code,0,32)));
$pwd = @unpack('H40hex',substr($code,32,40));
if ($user_id === false || $pwd === false) {
return false;
}
$pwd = $pwd['hex'];
$strReq = 'SELECT user_id, user_pwd '.
'FROM '.$core->prefix.'user '.
"WHERE user_id = '".$core->con->escape($user_id)."' ";
$rs = $core->con->select($strReq);
if ($rs->isEmpty()) {
return false;
}
if (crypt::hmac(DC_MASTER_KEY,$rs->user_pwd) != $pwd) {
return false;
}
$permissions = $core->getBlogPermissions($core->blog->id);
if ( empty($permissions[$rs->user_id]) ) {
return false;
}
return $rs->user_id;
}
public static function purgeOldSpam($core)
{
$defaultDateLastPurge = time();
$defaultModerationTTL = '7';
$init = false;
// settings
$core->blog->settings->addNamespace('antispam');
$dateLastPurge = $core->blog->settings->antispam->antispam_date_last_purge;
if ($dateLastPurge === null) {
$init = true;
$core->blog->settings->antispam->put('antispam_date_last_purge',$defaultDateLastPurge,'integer','Antispam Date Last Purge (unix timestamp)',true,false);
$dateLastPurge = $defaultDateLastPurge;
}
$moderationTTL = $core->blog->settings->antispam->antispam_moderation_ttl;
if ($moderationTTL === null) {
$core->blog->settings->antispam->put('antispam_moderation_ttl',$defaultModerationTTL,'integer','Antispam Moderation TTL (days)',true,false);
$moderationTTL = $defaultModerationTTL;
}
if ($moderationTTL < 0) {
// disabled
return;
}
// we call the purge every day
if ((time()-$dateLastPurge) > (86400)) {
// update dateLastPurge
if (!$init) {
$core->blog->settings->antispam->put('antispam_date_last_purge',time(),null,null,true,false);
}
$date = date('Y-m-d H:i:s', time() - $moderationTTL*86400);
dcAntispam::delAllSpam($core, $date);
}
}
}
?>