/**
* Verifies the author of a post and fetches the username if necessary.
*
* @return boolean True if the author information is valid, false if invalid.
*/
function verify_author()
{
global $mybb;
$post =& $this->data;
// Don't have a user ID at all - not good (note, a user id of 0 will still work).
if (!isset($post['uid'])) {
$this->set_error("invalid_user_id");
return false;
} else {
if ($post['uid'] > 0 && empty($post['username'])) {
$user = get_user($post['uid']);
$post['username'] = $user['username'];
} else {
if ($post['uid'] == 0 && $post['username'] != $lang->guest) {
// Set up user handler
require_once MYBB_ROOT . "inc/datahandlers/user.php";
$userhandler = new UserDataHandler();
$data_array = array('username' => $post['username']);
$userhandler->set_data($data_array);
if (!$userhandler->verify_username()) {
// invalid username
$this->errors = array_merge($this->errors, $userhandler->get_errors());
return false;
}
if ($userhandler->verify_username_exists()) {
// username is in use
$this->errors = array_merge($this->errors, $userhandler->get_errors());
return false;
}
}
}
}
// After all of this, if we still don't have a username, force the username as "Guest" (Note, this is not translatable as it is always a fallback)
if (!$post['username']) {
$post['username'] = "******";
}
return true;
}
