Right::checkPermission

public function checkPermission($entityMethod = "")
{
	if ($this->listsPermission < 0)
	{
		switch ($this->listsPermission)
		{
			case CListPermissions::WRONG_IBLOCK_TYPE:
				$this->errorCollection->setError(new Error("Invalid iblock type ID"), self::ACCESS_DENIED
				);
				break;
			case CListPermissions::WRONG_IBLOCK:
				$this->errorCollection->setError(new Error("Invalid list ID"), self::ACCESS_DENIED
				);
				break;
			case CListPermissions::LISTS_FOR_SONET_GROUP_DISABLED:
				$this->errorCollection->setError(new Error("Lists for this group is disabled", self::ACCESS_DENIED));
				break;
			default:
				$this->errorCollection->setError(new Error("Access denied", self::ACCESS_DENIED));
				break;
		}
	}

	if ($entityMethod)
	{
		if (method_exists($this->entityRight, $entityMethod))
		{
			if (!$this->entityRight->$entityMethod())
			{
				$this->errorCollection->setError(new Error("Access denied", self::ACCESS_DENIED));
			}
		}
		else
		{
			$this->errorCollection->setError(new Error("Access denied", self::ACCESS_DENIED));
		}
	}

	if ($this->hasErrors())
	{
		return false;
	}
	else
	{
		return true;
	}
}