package innerring import ( "context" "crypto/ecdsa" "fmt" "time" "github.com/nspcc-dev/neofs-api-go/pkg/client" "github.com/nspcc-dev/neofs-api-go/pkg/netmap" "github.com/nspcc-dev/neofs-api-go/pkg/object" "github.com/nspcc-dev/neofs-api-go/pkg/storagegroup" coreObject "github.com/nspcc-dev/neofs-node/pkg/core/object" "github.com/nspcc-dev/neofs-node/pkg/network" "github.com/nspcc-dev/neofs-node/pkg/network/cache" "github.com/nspcc-dev/neofs-node/pkg/services/audit" "github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement" "go.uber.org/zap" ) type ( ClientCache struct { log *zap.Logger cache interface { Get(string) (client.Client, error) } key *ecdsa.PrivateKey sgTimeout, headTimeout, rangeTimeout time.Duration } clientCacheParams struct { Log *zap.Logger Key *ecdsa.PrivateKey SGTimeout, HeadTimeout, RangeTimeout time.Duration } ) func newClientCache(p *clientCacheParams) *ClientCache { return &ClientCache{ log: p.Log, cache: cache.NewSDKClientCache(), key: p.Key, sgTimeout: p.SGTimeout, headTimeout: p.HeadTimeout, rangeTimeout: p.RangeTimeout, } } func (c *ClientCache) Get(address string) (client.Client, error) { // Because cache is used by `ClientCache` exclusively, // client will always have valid key. return c.cache.Get(address) } // GetSG polls the container from audit task to get the object by id. // Returns storage groups structure from received object. func (c *ClientCache) GetSG(task *audit.Task, id *object.ID) (*storagegroup.StorageGroup, error) { sgAddress := new(object.Address) sgAddress.SetContainerID(task.ContainerID()) sgAddress.SetObjectID(id) return c.getSG(task.AuditContext(), sgAddress, task.NetworkMap(), task.ContainerNodes()) } func (c *ClientCache) getSG(ctx context.Context, addr *object.Address, nm *netmap.Netmap, cn netmap.ContainerNodes) (*storagegroup.StorageGroup, error) { nodes, err := placement.BuildObjectPlacement(nm, cn, addr.ObjectID()) if err != nil { return nil, fmt.Errorf("can't build object placement: %w", err) } getParams := new(client.GetObjectParams) getParams.WithAddress(addr) for _, node := range placement.FlattenNodes(nodes) { addr, err := network.IPAddrFromMultiaddr(node.Address()) if err != nil { c.log.Warn("can't parse remote address", zap.String("address", node.Address()), zap.String("error", err.Error())) continue } cli, err := c.Get(addr) if err != nil { c.log.Warn("can't setup remote connection", zap.String("address", addr), zap.String("error", err.Error())) continue } cctx, cancel := context.WithTimeout(ctx, c.sgTimeout) obj, err := cli.GetObject(cctx, getParams, client.WithKey(c.key)) cancel() if err != nil { c.log.Warn("can't get storage group object", zap.String("error", err.Error())) continue } sg := storagegroup.New() err = sg.Unmarshal(obj.Payload()) if err != nil { return nil, fmt.Errorf("can't parse storage group payload: %w", err) } return sg, nil } return nil, coreObject.ErrNotFound } // GetHeader requests node from the container under audit to return object header by id. func (c *ClientCache) GetHeader(task *audit.Task, node *netmap.Node, id *object.ID, relay bool) (*object.Object, error) { raw := true ttl := uint32(1) if relay { ttl = 10 // todo: instead of hardcode value we can set TTL based on container length raw = false } objAddress := new(object.Address) objAddress.SetContainerID(task.ContainerID()) objAddress.SetObjectID(id) headParams := new(client.ObjectHeaderParams) headParams.WithRawFlag(raw) headParams.WithMainFields() headParams.WithAddress(objAddress) addr, err := network.IPAddrFromMultiaddr(node.Address()) if err != nil { return nil, fmt.Errorf("can't parse remote address %s: %w", node.Address(), err) } cli, err := c.Get(addr) if err != nil { return nil, fmt.Errorf("can't setup remote connection with %s: %w", addr, err) } cctx, cancel := context.WithTimeout(task.AuditContext(), c.headTimeout) head, err := cli.GetObjectHeader(cctx, headParams, client.WithTTL(ttl), client.WithKey(c.key)) cancel() if err != nil { return nil, fmt.Errorf("object head error: %w", err) } return head, nil } // GetRangeHash requests node from the container under audit to return Tillich-Zemor hash of the // payload range of the object with specified identifier. func (c *ClientCache) GetRangeHash(task *audit.Task, node *netmap.Node, id *object.ID, rng *object.Range) ([]byte, error) { objAddress := new(object.Address) objAddress.SetContainerID(task.ContainerID()) objAddress.SetObjectID(id) rangeParams := new(client.RangeChecksumParams) rangeParams.WithAddress(objAddress) rangeParams.WithRangeList(rng) rangeParams.WithSalt(nil) // it MUST be nil for correct hash concatenation in PDP game addr, err := network.IPAddrFromMultiaddr(node.Address()) if err != nil { return nil, fmt.Errorf("can't parse remote address %s: %w", node.Address(), err) } cli, err := c.Get(addr) if err != nil { return nil, fmt.Errorf("can't setup remote connection with %s: %w", addr, err) } cctx, cancel := context.WithTimeout(task.AuditContext(), c.rangeTimeout) result, err := cli.ObjectPayloadRangeTZ(cctx, rangeParams, client.WithTTL(1), client.WithKey(c.key)) cancel() if err != nil { return nil, fmt.Errorf("object rangehash error: %w", err) } // client guarantees that request and response have equal amount of ranges return result[0][:], nil }