added minimal image checker

app/imageoper/checkimage.go

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2026 Oleg Borodin <onborodin@gmail.com>
+ */
+package imageoper
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+
+	ocispec "github.com/opencontainers/image-spec/specs-go/v1"
+)
+
+type CheckImagesParams struct {
+	Name string
+}
+type CheckImagesResult struct {
+	Repositories []string `json:"repositories"`
+}
+
+func (oper *Operator) CheckImages(ctx context.Context, params *CheckImagesParams) (*CheckImagesResult, int, error) {
+	var err error
+	res := &CheckImagesResult{
+		Repositories: make([]string, 0),
+	}
+	manDescrs, err := oper.mdb.ListAllManifests(ctx)
+	if err != nil {
+		return res, http.StatusInternalServerError, err
+	}
+	for _, manDescr := range manDescrs {
+		oper.logg.Debugf("Check image %s:%s", manDescr.Name, manDescr.Reference)
+		man := &ocispec.Manifest{}
+		err = json.Unmarshal([]byte(manDescr.Payload), man)
+		if err != nil {
+			return res, http.StatusInternalServerError, err
+		}
+		blobs := make([]ocispec.Descriptor, 0)
+		blobs = append(blobs, man.Config)
+		blobs = append(blobs, man.Layers...)
+		incorrectImage := false
+		for _, blob := range blobs {
+			oper.logg.Debugf("Check block %s", blob.Digest.String())
+			blobExists, blobDescr, err := oper.mdb.GetBlobByNameRefDigest(ctx, manDescr.Name, manDescr.Reference, blob.Digest.String())
+			if err != nil {
+				return res, http.StatusInternalServerError, err
+			}
+			blobExists, blobSize, err := oper.store.BlobExists(blobDescr.Name, blobDescr.Digest)
+			if err != nil {
+				return res, http.StatusInternalServerError, err
+			}
+			if !blobExists || blobSize != blobDescr.Size {
+				incorrectImage = true
+			}
+		}
+		if incorrectImage {
+			repo := manDescr.Name + ":" + manDescr.Reference
+			oper.logg.Debugf("Delete incomplete image: %s", repo)
+			res.Repositories = append(res.Repositories, repo)
+			err = oper.deleteManifestObjects(ctx, manDescr.Name, manDescr.Reference)
+			if err != nil {
+				return res, http.StatusInternalServerError, err
+			}
+		}
+	}
+	return res, http.StatusOK, err
+}