protected function _validate($comment)
{
// get params
$require_author = $this->params->get('require_name_and_mail', 0);
$registered = $this->params->get('registered_users_only', 0);
$time_between_user_posts = $this->params->get('time_between_user_posts', 120);
$blacklist = $this->params->get('blacklist', '');
// check if related item exists
if (YTable::getInstance('item')->get($comment->item_id) === null) {
throw new CommentControllerException('Related item does not exists.');
}
// check if content is empty
if (empty($comment->content)) {
throw new CommentControllerException('Please enter a comment.');
}
// only registered users can comment
if ($registered && $this->author->isGuest()) {
throw new CommentControllerException('LOGIN_TO_LEAVE_OMMENT');
}
// validate required name/email
if ($this->author->isGuest() && $require_author && (empty($comment->author) || empty($comment->email))) {
throw new CommentControllerException('Please enter the required fields author and email.');
}
// validate email format
if (!empty($comment->email) && !CommentHelper::validateEmail($comment->email)) {
throw new CommentControllerException('Please enter a valid email address.');
}
// validate url format
if (!empty($comment->url) && !CommentHelper::validateURL($comment->url)) {
throw new CommentControllerException('Please enter a valid website link.');
}
// check quick multiple posts
if ($last = YTable::getInstance('comment')->getLastComment($comment->ip, $this->author)) {
if (JFactory::getDate($comment->created)->toUnix() < JFactory::getDate($last->created)->toUnix() + $time_between_user_posts) {
throw new CommentControllerException('You are posting comments too quickly. Slow down a bit.');
}
}
// check against spam blacklist
if (CommentHelper::matchWords($comment, $blacklist) && $comment->state != Comment::STATE_SPAM) {
$comment->state = Comment::STATE_SPAM;
}
// check comment for spam (akismet)
if ($this->params->get('akismet_enable', 0) && $comment->state != Comment::STATE_SPAM) {
try {
CommentHelper::akismet($comment, $this->params->get('akismet_api_key'));
} catch (Exception $e) {
// re-throw exception, for super administrators only
if ($this->user->superadmin) {
throw new YException($e->getMessage());
}
}
}
// check comment for spam (mollom)
if ($this->params->get('mollom_enable', 0) && $comment->state != Comment::STATE_SPAM) {
try {
CommentHelper::mollom($comment, $this->params->get('mollom_public_key'), $this->params->get('mollom_private_key'));
} catch (Exception $e) {
// re-throw exception, for super administrators only
if ($this->user->superadmin) {
throw new YException($e->getMessage());
}
}
}
}
