package getsvc import ( "crypto/ecdsa" "hash" "github.com/nspcc-dev/neofs-api-go/pkg/client" objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object" "github.com/nspcc-dev/neofs-node/pkg/core/object" "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine" "github.com/nspcc-dev/neofs-node/pkg/network/cache" ) type SimpleObjectWriter struct { obj *object.RawObject pld []byte } type clientCacheWrapper struct { cache *cache.ClientCache opts []client.Option } type clientWrapper struct { client *client.Client } type storageEngineWrapper struct { engine *engine.StorageEngine } type partWriter struct { ObjectWriter headWriter HeaderWriter chunkWriter ChunkWriter } type hasherWrapper struct { hash hash.Hash } func NewSimpleObjectWriter() *SimpleObjectWriter { return &SimpleObjectWriter{ obj: object.NewRaw(), } } func (s *SimpleObjectWriter) WriteHeader(obj *object.Object) error { s.obj = object.NewRawFromObject(obj) s.pld = make([]byte, 0, obj.PayloadSize()) return nil } func (s *SimpleObjectWriter) WriteChunk(p []byte) error { s.pld = append(s.pld, p...) return nil } func (s *SimpleObjectWriter) Object() *object.Object { if len(s.pld) > 0 { s.obj.SetPayload(s.pld) } return s.obj.Object() } func (c *clientCacheWrapper) get(key *ecdsa.PrivateKey, addr string) (getClient, error) { clt, err := c.cache.Get(key, addr, c.opts...) return &clientWrapper{ client: clt, }, err } func (c *clientWrapper) getObject(exec *execCtx) (*objectSDK.Object, error) { if exec.headOnly() { return c.client.GetObjectHeader(exec.context(), new(client.ObjectHeaderParams). WithAddress(exec.address()). WithRawFlag(exec.isRaw()), exec.callOptions()..., ) } // we don't specify payload writer because we accumulate // the object locally (even huge). if rng := exec.ctxRange(); rng != nil { data, err := c.client.ObjectPayloadRangeData(exec.context(), new(client.RangeDataParams). WithAddress(exec.address()). WithRange(rng). WithRaw(exec.isRaw()), exec.callOptions()..., ) if err != nil { return nil, err } return payloadOnlyObject(data), nil } else { return c.client.GetObject(exec.context(), exec.remotePrm(), exec.callOptions()..., ) } } func (e *storageEngineWrapper) get(exec *execCtx) (*object.Object, error) { if exec.headOnly() { r, err := e.engine.Head(new(engine.HeadPrm). WithAddress(exec.address()). WithRaw(exec.isRaw()), ) if err != nil { return nil, err } return r.Header(), nil } else if rng := exec.ctxRange(); rng != nil { r, err := e.engine.GetRange(new(engine.RngPrm). WithAddress(exec.address()). WithPayloadRange(rng), ) if err != nil { return nil, err } return r.Object(), nil } else { r, err := e.engine.Get(new(engine.GetPrm). WithAddress(exec.address()), ) if err != nil { return nil, err } return r.Object(), nil } } func (w *partWriter) WriteChunk(p []byte) error { return w.chunkWriter.WriteChunk(p) } func (w *partWriter) WriteHeader(o *object.Object) error { return w.headWriter.WriteHeader(o) } func payloadOnlyObject(payload []byte) *objectSDK.Object { rawObj := object.NewRaw() rawObj.SetPayload(payload) return rawObj.Object().SDK() } func (h *hasherWrapper) WriteChunk(p []byte) error { _, err := h.hash.Write(p) return err }