alittle splitted mstorectl code; etc

app/imageoper/postupload.go

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2026 Oleg Borodin <onborodin@gmail.com>
+ *
+ * This work is published and licensed under a Creative Commons
+ * Attribution-NonCommercial-NoDerivatives 4.0 International License.
+ *
+ * Distribution of this work is permitted, but commercial use and
+ * modifications are strictly prohibited.
+ */
+package imageoper
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"strconv"
+
+	"mstore/pkg/auxuuid"
+)
+
+type PostUploadParams struct {
+	Name   string
+	Digest string
+	Mount  string
+	From   string
+}
+type PostUploadResult struct {
+	DockerUploadUUID string
+	Location         string
+	ContentLength    string
+}
+
+func (oper *Operator) PostUpload(ctx context.Context, operatorID string, params *PostUploadParams) (*PostUploadResult, int, error) {
+	var err error
+	res := &PostUploadResult{}
+
+	if params.Digest == "" {
+		uuid := auxuuid.NewUUID()
+		location := fmt.Sprintf("/v2/%s/blobs/uploads/%s", params.Name, uuid)
+		res.DockerUploadUUID = uuid
+		res.Location = location
+		res.ContentLength = strconv.FormatInt(0, 10)
+		return res, http.StatusAccepted, err
+	} else {
+		err = fmt.Errorf("PostUpload: Not empty digest header")
+		return res, http.StatusInternalServerError, err
+	}
+	return res, http.StatusOK, err
+}