Handle user delete (#1113)

Implement user deletion across all IDP-ss. Expires all user peers
when the user is deleted. Users are permanently removed from a local
store, but in IDP, we remove Netbird attributes for the user
untilUserDeleteFromIDPEnabled setting is not enabled.

To test, an admin user should remove any additional users.

Until the UI incorporates this feature, use a curl DELETE request
targeting the /users/<USER_ID> management endpoint. Note that this
request only removes user attributes and doesn't trigger a delete
from the IDP.

To enable user removal from the IdP, set UserDeleteFromIDPEnabled
to true in account settings. Until we have a UI for this, make this
change directly in the store file.

Store the deleted email addresses in encrypted in activity store.

management/server/account.go

@@ -130,6 +130,9 @@ type DefaultAccountManager struct {
 	// dnsDomain is used for peer resolution. This is appended to the peer's name
 	dnsDomain       string
 	peerLoginExpiry Scheduler
+
+	// userDeleteFromIDPEnabled allows to delete user from IDP when user is deleted from account
+	userDeleteFromIDPEnabled bool
 }
 
 // Settings represents Account settings structure that can be modified via API and Dashboard
@@ -735,18 +738,19 @@ func (a *Account) UserGroupsRemoveFromPeers(userID string, groups ...string) {
 
 // BuildManager creates a new DefaultAccountManager with a provided Store
 func BuildManager(store Store, peersUpdateManager *PeersUpdateManager, idpManager idp.Manager,
-	singleAccountModeDomain string, dnsDomain string, eventStore activity.Store,
+	singleAccountModeDomain string, dnsDomain string, eventStore activity.Store, userDeleteFromIDPEnabled bool,
 ) (*DefaultAccountManager, error) {
 	am := &DefaultAccountManager{
-		Store:              store,
-		peersUpdateManager: peersUpdateManager,
-		idpManager:         idpManager,
-		ctx:                context.Background(),
-		cacheMux:           sync.Mutex{},
-		cacheLoading:       map[string]chan struct{}{},
-		dnsDomain:          dnsDomain,
-		eventStore:         eventStore,
-		peerLoginExpiry:    NewDefaultScheduler(),
+		Store:                    store,
+		peersUpdateManager:       peersUpdateManager,
+		idpManager:               idpManager,
+		ctx:                      context.Background(),
+		cacheMux:                 sync.Mutex{},
+		cacheLoading:             map[string]chan struct{}{},
+		dnsDomain:                dnsDomain,
+		eventStore:               eventStore,
+		peerLoginExpiry:          NewDefaultScheduler(),
+		userDeleteFromIDPEnabled: userDeleteFromIDPEnabled,
 	}
 	allAccounts := store.GetAllAccounts()
 	// enable single account mode only if configured by user and number of existing accounts is not grater than 1
@@ -871,33 +875,19 @@ func (am *DefaultAccountManager) peerLoginExpirationJob(accountID string) func()
 			return account.GetNextPeerExpiration()
 		}
 
+		expiredPeers := account.GetExpiredPeers()
 		var peerIDs []string
-		for _, peer := range account.GetExpiredPeers() {
-			if peer.Status.LoginExpired {
-				continue
-			}
+		for _, peer := range expiredPeers {
 			peerIDs = append(peerIDs, peer.ID)
-			peer.MarkLoginExpired(true)
-			account.UpdatePeer(peer)
-			err = am.Store.SavePeerStatus(account.Id, peer.ID, *peer.Status)
-			if err != nil {
-				log.Errorf("failed saving peer status while expiring peer %s", peer.ID)
-				return account.GetNextPeerExpiration()
-			}
-			am.storeEvent(peer.UserID, peer.ID, account.Id, activity.PeerLoginExpired, peer.EventMeta(am.GetDNSDomain()))
 		}
 
 		log.Debugf("discovered %d peers to expire for account %s", len(peerIDs), account.Id)
 
-		if len(peerIDs) != 0 {
-			// this will trigger peer disconnect from the management service
-			am.peersUpdateManager.CloseChannels(peerIDs)
-			err = am.updateAccountPeers(account)
-			if err != nil {
-				log.Errorf("failed updating account peers while expiring peers for account %s", accountID)
-				return account.GetNextPeerExpiration()
-			}
+		if err := am.expireAndUpdatePeers(account, expiredPeers); err != nil {
+			log.Errorf("failed updating account peers while expiring peers for account %s", account.Id)
+			return account.GetNextPeerExpiration()
 		}
+
 		return account.GetNextPeerExpiration()
 	}
 }