name = __('Duplicate');
$this->description = __('Same comments on others blogs of a multiblog');
}
public function isSpam($type, $author, $email, $site, $ip, $content, $post_id, &$status)
{
if ($type != 'comment') {
return null;
}
if (strlen($content) < $this->getMinLength()) {
return null;
}
try {
if ($this->isDuplicate($content, $ip)) {
$this->markDuplicate($content, $ip);
$status = 'Duplicate on other blog';
return true;
}
return null;
} catch (Exception $e) {
throw new Exception($e->getMessage());
}
}
public function isDuplicate($content, $ip)
{
$rs = dcCore::app()->con->select(
'SELECT C.comment_id ' .
'FROM ' . dcCore::app()->prefix . dcBlog::COMMENT_TABLE_NAME . ' C ' .
'LEFT JOIN ' . dcCore::app()->prefix . 'post P ON C.post_id=P.post_id ' .
"WHERE P.blog_id != '" . dcCore::app()->blog->id . "' " .
"AND C.comment_content='" . dcCore::app()->con->escape($content) . "' " .
"AND C.comment_ip='" . $ip . "' "
);
return !$rs->isEmpty();
}
public function markDuplicate($content, $ip)
{
$cur = dcCore::app()->con->openCursor(dcCore::app()->prefix . dcBlog::COMMENT_TABLE_NAME);
dcCore::app()->con->writeLock(dcCore::app()->prefix . dcBlog::COMMENT_TABLE_NAME);
$cur->comment_status = -2;
$cur->comment_spam_status = 'Duplicate on other blog';
$cur->comment_spam_filter = 'dcFilterDuplicate';
$cur->update(
"WHERE comment_content='" . dcCore::app()->con->escape($content) . "' " .
"AND comment_ip='" . $ip . "' "
);
dcCore::app()->con->unlock();
$this->triggerOtherBlogs($content, $ip);
}
public function gui(string $url): string
{
if (dcCore::app()->auth->isSuperAdmin()) {
dcCore::app()->blog->settings->dcFilterDuplicate->drop('dcfilterduplicate_minlen');
if (isset($_POST['dcfilterduplicate_minlen'])) {
dcCore::app()->blog->settings->dcFilterDuplicate->put(
'dcfilterduplicate_minlen',
abs((int) $_POST['dcfilterduplicate_minlen']),
'integer',
'Minimum lenght of comment to filter',
true,
true
);
dcPage::addSuccessNotice(__('Configuration successfully updated.'));
http::redirect($url);
}
return
'';
}
return
'' . sprintf(
__('Super administrator set the minimum length of comment content to %d chars.'),
$this->getMinlength()
) . '
';
}
private function getMinLength()
{
return abs((int) dcCore::app()->blog->settings->dcFilterDuplicate->getGlobal('dcfilterduplicate_minlen'));
}
public function triggerOtherBlogs($content, $ip)
{
$rs = dcCore::app()->con->select(
'SELECT P.blog_id ' .
'FROM ' . dcCore::app()->prefix . dcBlog::COMMENT_TABLE_NAME . ' C ' .
'LEFT JOIN ' . dcCore::app()->prefix . 'post P ON C.post_id=P.post_id ' .
"WHERE C.comment_content='" . dcCore::app()->con->escape($content) . "' " .
"AND C.comment_ip='" . $ip . "' "
);
while ($rs->fetch()) {
$b = new dcBlog($rs->blog_id);
$b->triggerBlog();
unset($b);
}
}
}