/**
* 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;
}
}
