@Override
@DB
public RemoteAccessVpnVO startRemoteAccessVpn(long vpnId, boolean openFirewall)
throws ResourceUnavailableException {
Account caller = UserContext.current().getCaller();
RemoteAccessVpnVO vpn = _remoteAccessVpnDao.findById(vpnId);
if (vpn == null) {
throw new InvalidParameterValueException("Unable to find your vpn: " + vpnId);
}
_accountMgr.checkAccess(caller, null, true, vpn);
Network network = _networkMgr.getNetwork(vpn.getNetworkId());
boolean started = false;
try {
boolean firewallOpened = true;
if (openFirewall) {
firewallOpened = _firewallMgr.applyIngressFirewallRules(vpn.getServerAddressId(), caller);
}
if (firewallOpened) {
for (RemoteAccessVPNServiceProvider element : _vpnServiceProviders) {
if (element.startVpn(network, vpn)) {
started = true;
break;
}
}
}
return vpn;
} finally {
if (started) {
Transaction txn = Transaction.currentTxn();
txn.start();
vpn.setState(RemoteAccessVpn.State.Running);
_remoteAccessVpnDao.update(vpn.getServerAddressId(), vpn);
// Start billing of existing VPN users in ADD and Active state
List<VpnUserVO> vpnUsers = _vpnUsersDao.listByAccount(vpn.getAccountId());
for (VpnUserVO user : vpnUsers) {
if (user.getState() != VpnUser.State.Revoke) {
UsageEventUtils.publishUsageEvent(
EventTypes.EVENT_VPN_USER_ADD,
user.getAccountId(),
0,
user.getId(),
user.getUsername(),
user.getClass().getName(),
user.getUuid());
}
}
txn.commit();
}
}
}
@Override
@DB
public VpnUser addVpnUser(long vpnOwnerId, String username, String password) {
Account caller = UserContext.current().getCaller();
if (!username.matches("^[a-zA-Z0-9][a-zA-Z0-9@._-]{2,63}$")) {
throw new InvalidParameterValueException(
"Username has to be begin with an alphabet have 3-64 characters including alphabets, numbers and the set '@.-_'");
}
if (!password.matches("^[a-zA-Z0-9][a-zA-Z0-9@#+=._-]{2,31}$")) {
throw new InvalidParameterValueException(
"Password has to be 3-32 characters including alphabets, numbers and the set '@#+=.-_'");
}
Transaction txn = Transaction.currentTxn();
txn.start();
Account owner = _accountDao.lockRow(vpnOwnerId, true);
if (owner == null) {
throw new InvalidParameterValueException("Unable to add vpn user: Another operation active");
}
_accountMgr.checkAccess(caller, null, true, owner);
// don't allow duplicated user names for the same account
VpnUserVO vpnUser = _vpnUsersDao.findByAccountAndUsername(owner.getId(), username);
if (vpnUser != null) {
throw new InvalidParameterValueException(
"VPN User with name " + username + " is already added for account " + owner);
}
long userCount = _vpnUsersDao.getVpnUserCount(owner.getId());
if (userCount >= _userLimit) {
throw new AccountLimitException(
"Cannot add more than " + _userLimit + " remote access vpn users");
}
VpnUser user =
_vpnUsersDao.persist(new VpnUserVO(vpnOwnerId, owner.getDomainId(), username, password));
UsageEventUtils.publishUsageEvent(
EventTypes.EVENT_VPN_USER_ADD,
user.getAccountId(),
0,
user.getId(),
user.getUsername(),
user.getClass().getName(),
user.getUuid());
txn.commit();
return user;
}
@DB
@Override
public boolean removeVpnUser(long vpnOwnerId, String username, Account caller) {
VpnUserVO user = _vpnUsersDao.findByAccountAndUsername(vpnOwnerId, username);
if (user == null) {
throw new InvalidParameterValueException("Could not find vpn user " + username);
}
_accountMgr.checkAccess(caller, null, true, user);
Transaction txn = Transaction.currentTxn();
txn.start();
user.setState(State.Revoke);
_vpnUsersDao.update(user.getId(), user);
UsageEventUtils.publishUsageEvent(
EventTypes.EVENT_VPN_USER_REMOVE,
user.getAccountId(),
0,
user.getId(),
user.getUsername(),
user.getClass().getName(),
user.getUuid());
txn.commit();
return true;
}
@DB
@Override
public boolean applyVpnUsers(long vpnOwnerId, String userName) {
Account caller = UserContext.current().getCaller();
Account owner = _accountDao.findById(vpnOwnerId);
_accountMgr.checkAccess(caller, null, true, owner);
s_logger.debug("Applying vpn users for " + owner);
List<RemoteAccessVpnVO> vpns = _remoteAccessVpnDao.findByAccount(vpnOwnerId);
List<VpnUserVO> users = _vpnUsersDao.listByAccount(vpnOwnerId);
// If user is in Active state, we still have to resend them therefore their status has to be Add
for (VpnUserVO user : users) {
if (user.getState() == State.Active) {
user.setState(State.Add);
_vpnUsersDao.update(user.getId(), user);
}
}
boolean success = true;
boolean[] finals = new boolean[users.size()];
for (RemoteAccessVPNServiceProvider element : _vpnServiceProviders) {
s_logger.debug("Applying vpn access to " + element.getName());
for (RemoteAccessVpnVO vpn : vpns) {
try {
String[] results = element.applyVpnUsers(vpn, users);
if (results != null) {
for (int i = 0; i < results.length; i++) {
s_logger.debug(
"VPN User "
+ users.get(i)
+ (results[i] == null
? " is set on "
: (" couldn't be set due to " + results[i]) + " on ")
+ vpn);
if (results[i] == null) {
if (!finals[i]) {
finals[i] = true;
}
} else {
finals[i] = false;
success = false;
}
}
}
} catch (ResourceUnavailableException e) {
s_logger.warn("Unable to apply vpn users ", e);
success = false;
for (int i = 0; i < finals.length; i++) {
finals[i] = false;
}
}
}
}
for (int i = 0; i < finals.length; i++) {
VpnUserVO user = users.get(i);
if (finals[i]) {
if (user.getState() == State.Add) {
user.setState(State.Active);
_vpnUsersDao.update(user.getId(), user);
} else if (user.getState() == State.Revoke) {
_vpnUsersDao.remove(user.getId());
}
} else {
if (user.getState() == State.Add && (user.getUsername()).equals(userName)) {
Transaction txn = Transaction.currentTxn();
txn.start();
_vpnUsersDao.remove(user.getId());
UsageEventUtils.publishUsageEvent(
EventTypes.EVENT_VPN_USER_REMOVE,
user.getAccountId(),
0,
user.getId(),
user.getUsername(),
user.getClass().getName(),
user.getUuid());
txn.commit();
}
s_logger.warn(
"Failed to apply vpn for user "
+ user.getUsername()
+ ", accountId="
+ user.getAccountId());
}
}
return success;
}
@Override
@DB
public void destroyRemoteAccessVpn(long ipId, Account caller)
throws ResourceUnavailableException {
RemoteAccessVpnVO vpn = _remoteAccessVpnDao.findById(ipId);
if (vpn == null) {
s_logger.debug("vpn id=" + ipId + " does not exists ");
return;
}
_accountMgr.checkAccess(caller, null, true, vpn);
Network network = _networkMgr.getNetwork(vpn.getNetworkId());
vpn.setState(RemoteAccessVpn.State.Removed);
_remoteAccessVpnDao.update(vpn.getServerAddressId(), vpn);
boolean success = false;
try {
for (RemoteAccessVPNServiceProvider element : _vpnServiceProviders) {
if (element.stopVpn(network, vpn)) {
success = true;
break;
}
}
} finally {
if (success) {
// Cleanup corresponding ports
List<? extends FirewallRule> vpnFwRules = _rulesDao.listByIpAndPurpose(ipId, Purpose.Vpn);
Transaction txn = Transaction.currentTxn();
boolean applyFirewall = false;
List<FirewallRuleVO> fwRules = new ArrayList<FirewallRuleVO>();
// if related firewall rule is created for the first vpn port, it would be created for the 2
// other ports as well, so need to cleanup the backend
if (_rulesDao.findByRelatedId(vpnFwRules.get(0).getId()) != null) {
applyFirewall = true;
}
if (applyFirewall) {
txn.start();
for (FirewallRule vpnFwRule : vpnFwRules) {
// don't apply on the backend yet; send all 3 rules in a banch
_firewallMgr.revokeRelatedFirewallRule(vpnFwRule.getId(), false);
fwRules.add(_rulesDao.findByRelatedId(vpnFwRule.getId()));
}
s_logger.debug(
"Marked "
+ fwRules.size()
+ " firewall rules as Revoked as a part of disable remote access vpn");
txn.commit();
// now apply vpn rules on the backend
s_logger.debug(
"Reapplying firewall rules for ip id="
+ ipId
+ " as a part of disable remote access vpn");
success = _firewallMgr.applyIngressFirewallRules(ipId, caller);
}
if (success) {
try {
txn.start();
_remoteAccessVpnDao.remove(ipId);
// Stop billing of VPN users when VPN is removed. VPN_User_ADD events will be generated
// when VPN is created again
List<VpnUserVO> vpnUsers = _vpnUsersDao.listByAccount(vpn.getAccountId());
for (VpnUserVO user : vpnUsers) {
// VPN_USER_REMOVE event is already generated for users in Revoke state
if (user.getState() != VpnUser.State.Revoke) {
UsageEventUtils.publishUsageEvent(
EventTypes.EVENT_VPN_USER_REMOVE,
user.getAccountId(),
0,
user.getId(),
user.getUsername(),
user.getClass().getName(),
user.getUuid());
}
}
if (vpnFwRules != null) {
for (FirewallRule vpnFwRule : vpnFwRules) {
_rulesDao.remove(vpnFwRule.getId());
s_logger.debug(
"Successfully removed firewall rule with ip id="
+ vpnFwRule.getSourceIpAddressId()
+ " and port "
+ vpnFwRule.getSourcePortStart()
+ " as a part of vpn cleanup");
}
}
txn.commit();
} catch (Exception ex) {
txn.rollback();
s_logger.warn("Unable to release the three vpn ports from the firewall rules", ex);
}
}
}
}
}