BlogPostConnector::getPermission

private function getPermission($userId)
{
	global $APPLICATION;

	if (!Loader::includeModule('socialnetwork'))
		return false;
	elseif (
		$APPLICATION->getGroupRight("blog") >= "W"
		|| CSocNetUser::isCurrentUserModuleAdmin()
	)
	{
		self::$permissions[$this->entityId] = BLOG_PERMS_FULL;
	}
	else if (!array_key_exists($this->entityId, self::$permissions))
	{
		self::$permissions[$this->entityId] = BLOG_PERMS_DENY;
		$post = self::getPostData($this->entityId);
		if ($post && $post["ID"] > 0)
		{
			$p = CBlogPost::getSocNetPostPerms($this->entityId, true, $userId, $post["AUTHOR_ID"]);
			if ($p > BLOG_PERMS_MODERATE || ($p >= BLOG_PERMS_WRITE && $post["AUTHOR_ID"] == $userId))
				$p = BLOG_PERMS_FULL;
			self::$permissions[$this->entityId] = $p;
		}

	}
	return self::$permissions[$this->entityId];
}