Audit changes

hub/api/api.go

@@ -169,11 +169,25 @@ func (a *API) sweepSessions() {
 }
 
 func (a *API) Network_Create(n *Network) error {
+	a.lock.Lock()
+	defer a.lock.Unlock()
+
 	n.NetworkID = idgen.NextID(0)
 	return errs.DB(db.Network_Insert(a.db, n))
 }
 
 func (a *API) Network_Delete(n *Network) error {
+	a.lock.Lock()
+	defer a.lock.Unlock()
+
+	exists, err := db.Network_HasPeers(a.db, n.NetworkID)
+	if err != nil {
+		return errs.DB(err)
+	}
+	if exists {
+		return errs.Conflict.WithMsg("Delete all peers before deleting network.")
+	}
+
 	return errs.DB(db.Network_Delete(a.db, n.NetworkID))
 }
 
@@ -189,6 +203,9 @@ func (a *API) Network_List() ([]*Network, error) {
 }
 
 func (a *API) Peer_CreateNew(p *Peer) error {
+	a.lock.Lock()
+	defer a.lock.Unlock()
+
 	p.WGPubKey = []byte{}
 	p.SignPubKey = []byte{}
 	p.APIKey = idgen.NewToken()
@@ -217,6 +234,9 @@ func (a *API) Peer_Init(peer *Peer, args m.PeerInitArgs) error {
 }
 
 func (a *API) Peer_Delete(networkID int64, peerIP byte) error {
+	a.lock.Lock()
+	defer a.lock.Unlock()
+
 	return errs.DB(db.Peer_Delete(a.db, networkID, peerIP))
 }