/** * Check whether the given policy is valid for the given community and user. * * @param CommunityDao $communityDao community DAO * @param null|UserDao $userDao user DAO * @param int $policy policy * @return bool true if the given policy is valid for the given community and user * @throws Zend_Exception */ public function policyCheck($communityDao, $userDao = null, $policy = MIDAS_POLICY_READ) { if (!$communityDao instanceof CommunityDao || !is_numeric($policy)) { throw new Zend_Exception('Error in param: communityDao should be a CommunityDao and policy should be numeric.'); } if ($userDao == null) { $userId = -1; } elseif (!$userDao instanceof UserDao) { throw new Zend_Exception('Should be an user.'); } else { $userId = $userDao->getUserId(); if ($userDao->isAdmin()) { return true; } } $privacy = $communityDao->getPrivacy(); switch ($policy) { case MIDAS_POLICY_READ: if ($privacy != MIDAS_COMMUNITY_PRIVATE) { return true; } elseif ($userId == -1) { return false; } else { $user_groups = $userDao->getGroups(); $member_group = $communityDao->getMemberGroup(); foreach ($user_groups as $group) { if ($group->getKey() == $member_group->getKey()) { return true; } } $invitations = $userDao->getInvitations(); foreach ($invitations as $invitation) { if ($invitation->getCommunityId() == $communityDao->getKey()) { return true; } } return false; } break; case MIDAS_POLICY_WRITE: if ($userId == -1) { return false; } else { $user_groups = $userDao->getGroups(); $moderator_group = $communityDao->getModeratorGroup(); $admin_group = $communityDao->getAdminGroup(); foreach ($user_groups as $group) { if ($group->getKey() == $moderator_group->getKey() || $group->getKey() == $admin_group->getKey()) { return true; } } return false; } break; case MIDAS_POLICY_ADMIN: if ($userId == -1) { return false; } else { $user_groups = $userDao->getGroups(); $admin_group = $communityDao->getAdminGroup(); foreach ($user_groups as $group) { if ($group->getKey() == $admin_group->getKey()) { return true; } } return false; } break; default: return false; } }