[#483] cli: Allow to split object on the client side

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

cmd/frostfs-cli/internal/client/client.go

@@ -336,6 +336,8 @@ type PutObjectPrm struct {
 	rdr io.Reader
 
 	headerCallback func(*object.Object)
+
+	prepareLocally bool
 }
 
 // SetHeader sets object header.
@@ -360,6 +362,41 @@ func (x *PutObjectPrm) SetCopiesNumberByVectors(copiesNumbers []uint32) {
 	x.copyNum = copiesNumbers
 }
 
+// PrepareLocally generate object header on the client side.
+// For big object - split locally too.
+func (x *PutObjectPrm) PrepareLocally() {
+	x.prepareLocally = true
+}
+
+func (x *PutObjectPrm) convertToSDKPrm(ctx context.Context) (client.PrmObjectPutInit, error) {
+	var putPrm client.PrmObjectPutInit
+	if !x.prepareLocally && x.sessionToken != nil {
+		putPrm.WithinSession(*x.sessionToken)
+	}
+
+	if x.bearerToken != nil {
+		putPrm.WithBearerToken(*x.bearerToken)
+	}
+
+	if x.local {
+		putPrm.MarkLocal()
+	}
+
+	putPrm.WithXHeaders(x.xHeaders...)
+	putPrm.SetCopiesNumberByVectors(x.copyNum)
+
+	if x.prepareLocally {
+		res, err := x.cli.NetworkInfo(ctx, client.PrmNetworkInfo{})
+		if err != nil {
+			return client.PrmObjectPutInit{}, err
+		}
+		putPrm.WithObjectMaxSize(res.Info().MaxObjectSize())
+		putPrm.WithEpochSource(epochSource(res.Info().CurrentEpoch()))
+		putPrm.WithoutHomomorphicHash(res.Info().HomomorphicHashingDisabled())
+	}
+	return putPrm, nil
+}
+
 // PutObjectRes groups the resulting values of PutObject operation.
 type PutObjectRes struct {
 	id oid.ID
@@ -370,28 +407,21 @@ func (x PutObjectRes) ID() oid.ID {
 	return x.id
 }
 
+type epochSource uint64
+
+func (s epochSource) CurrentEpoch() uint64 {
+	return uint64(s)
+}
+
 // PutObject saves the object in FrostFS network.
 //
 // Returns any error which prevented the operation from completing correctly in error return.
 func PutObject(ctx context.Context, prm PutObjectPrm) (*PutObjectRes, error) {
-	var putPrm client.PrmObjectPutInit
-
-	if prm.sessionToken != nil {
-		putPrm.WithinSession(*prm.sessionToken)
+	sdkPrm, err := prm.convertToSDKPrm(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("unable to create parameters of object put operation: %w", err)
 	}
-
-	if prm.bearerToken != nil {
-		putPrm.WithBearerToken(*prm.bearerToken)
-	}
-
-	if prm.local {
-		putPrm.MarkLocal()
-	}
-
-	putPrm.WithXHeaders(prm.xHeaders...)
-	putPrm.SetCopiesNumberByVectors(prm.copyNum)
-
-	wrt, err := prm.cli.ObjectPutInit(ctx, putPrm)
+	wrt, err := prm.cli.ObjectPutInit(ctx, sdkPrm)
 	if err != nil {
 		return nil, fmt.Errorf("init object writing: %w", err)
 	}