Fix container blob mount (go-gitea#22226)

Author: KN4CK3R

models/packages/container/search.go

@@ -26,6 +26,7 @@ type BlobSearchOptions struct {
 	Digest     string
 	Tag        string
 	IsManifest bool
+	Repository string
 }
 
 func (opts *BlobSearchOptions) toConds() builder.Cond {
@@ -54,6 +55,15 @@ func (opts *BlobSearchOptions) toConds() builder.Cond {
 
 		cond = cond.And(builder.In("package_file.id", builder.Select("package_property.ref_id").Where(propsCond).From("package_property")))
 	}
+	if opts.Repository != "" {
+		var propsCond builder.Cond = builder.Eq{
+			"package_property.ref_type": packages.PropertyTypePackage,
+			"package_property.name":     container_module.PropertyRepository,
+			"package_property.value":    opts.Repository,
+		}
+
+		cond = cond.And(builder.In("package.id", builder.Select("package_property.ref_id").Where(propsCond).From("package_property")))
+	}
 
 	return cond
 }

routers/api/packages/container/blob.go

@@ -34,6 +34,60 @@ func saveAsPackageBlob(hsr packages_module.HashedSizeReader, pi *packages_servic
 
 	contentStore := packages_module.NewContentStore()
 
+	uploadVersion, err := getOrCreateUploadVersion(pi)
+	if err != nil {
+		return nil, err
+	}
+
+	err = db.WithTx(db.DefaultContext, func(ctx context.Context) error {
+		pb, exists, err = packages_model.GetOrInsertBlob(ctx, pb)
+		if err != nil {
+			log.Error("Error inserting package blob: %v", err)
+			return err
+		}
+		// FIXME: Workaround to be removed in v1.20
+		// https://github.com/go-gitea/gitea/issues/19586
+		if exists {
+			err = contentStore.Has(packages_module.BlobHash256Key(pb.HashSHA256))
+			if err != nil && (errors.Is(err, util.ErrNotExist) || errors.Is(err, os.ErrNotExist)) {
+				log.Debug("Package registry inconsistent: blob %s does not exist on file system", pb.HashSHA256)
+				exists = false
+			}
+		}
+		if !exists {
+			if err := contentStore.Save(packages_module.BlobHash256Key(pb.HashSHA256), hsr, hsr.Size()); err != nil {
+				log.Error("Error saving package blob in content store: %v", err)
+				return err
+			}
+		}
+
+		return createFileForBlob(ctx, uploadVersion, pb)
+	})
+	if err != nil {
+		if !exists {
+			if err := contentStore.Delete(packages_module.BlobHash256Key(pb.HashSHA256)); err != nil {
+				log.Error("Error deleting package blob from content store: %v", err)
+			}
+		}
+		return nil, err
+	}
+
+	return pb, nil
+}
+
+// mountBlob mounts the specific blob to a different package
+func mountBlob(pi *packages_service.PackageInfo, pb *packages_model.PackageBlob) error {
+	uploadVersion, err := getOrCreateUploadVersion(pi)
+	if err != nil {
+		return err
+	}
+
+	return db.WithTx(db.DefaultContext, func(ctx context.Context) error {
+		return createFileForBlob(ctx, uploadVersion, pb)
+	})
+}
+
+func getOrCreateUploadVersion(pi *packages_service.PackageInfo) (*packages_model.PackageVersion, error) {
 	var uploadVersion *packages_model.PackageVersion
 
 	// FIXME: Replace usage of mutex with database transaction
@@ -84,8 +138,27 @@ func saveAsPackageBlob(hsr packages_module.HashedSizeReader, pi *packages_servic
 		return nil
 	})
 	uploadVersionMutex.Unlock()
-	if err != nil {
-		return nil, err
+
+	return uploadVersion, err
+}
+
+func createFileForBlob(ctx context.Context, pv *packages_model.PackageVersion, pb *packages_model.PackageBlob) error {
+	filename := strings.ToLower(fmt.Sprintf("sha256_%s", pb.HashSHA256))
+
+	pf := &packages_model.PackageFile{
+		VersionID:    pv.ID,
+		BlobID:       pb.ID,
+		Name:         filename,
+		LowerName:    filename,
+		CompositeKey: packages_model.EmptyFileKey,
+	}
+	var err error
+	if pf, err = packages_model.TryInsertFile(ctx, pf); err != nil {
+		if err == packages_model.ErrDuplicatePackageFile {
+			return nil
+		}
+		log.Error("Error inserting package file: %v", err)
+		return err
 	}
 
 	err = db.WithTx(func(ctx context.Context) error {
@@ -141,9 +214,13 @@ func saveAsPackageBlob(hsr packages_module.HashedSizeReader, pi *packages_servic
 			}
 		}
 		return nil, err
+
+	if _, err := packages_model.InsertProperty(ctx, packages_model.PropertyTypeFile, pf.ID, container_module.PropertyDigest, digestFromPackageBlob(pb)); err != nil {
+		log.Error("Error setting package file property: %v", err)
+		return err
 	}
 
-	return pb, nil
+	return nil
 }
 
 func deleteBlob(ownerID int64, image, digest string) error {

routers/api/packages/container/container.go

@@ -196,10 +196,15 @@ func InitiateUploadBlob(ctx *context.Context) {
 	from := ctx.FormTrim("from")
 	if mount != "" {
 		blob, _ := workaroundGetContainerBlob(ctx, &container_model.BlobSearchOptions{
-			Image:  from,
-			Digest: mount,
+			Repository: from,
+			Digest:     mount,
 		})
 		if blob != nil {
+			if err := mountBlob(&packages_service.PackageInfo{Owner: ctx.Package.Owner, Name: image}, blob.Blob); err != nil {
+				apiError(ctx, http.StatusInternalServerError, err)
+				return
+			}
+
 			setResponseHeaders(ctx.Resp, &containerHeaders{
 				Location:      fmt.Sprintf("/v2/%s/%s/blobs/%s", ctx.Package.Owner.LowerName, image, mount),
 				ContentDigest: mount,

templates/package/settings.tmpl

@@ -51,7 +51,7 @@
 						{{.locale.Tr "packages.settings.delete"}}
 					</div>
 					<div class="content">
-						<div class="ui warning message text left">
+						<div class="ui warning message text left word-break">
 							{{.locale.Tr "packages.settings.delete.notice" .PackageDescriptor.Package.Name .PackageDescriptor.Version.Version}}
 						</div>
 						<form class="ui form" action="{{.Link}}" method="post">

tests/integration/api_packages_container_test.go

@@ -257,6 +257,32 @@ func TestPackageContainer(t *testing.T) {
 				})
 			})
 
+			t.Run("UploadBlob/Mount", func(t *testing.T) {
+				defer tests.PrintCurrentTest(t)()
+
+				req := NewRequest(t, "POST", fmt.Sprintf("%s/blobs/uploads?mount=%s", url, unknownDigest))
+				addTokenAuthHeader(req, userToken)
+				MakeRequest(t, req, http.StatusAccepted)
+
+				req = NewRequest(t, "POST", fmt.Sprintf("%s/blobs/uploads?mount=%s", url, blobDigest))
+				addTokenAuthHeader(req, userToken)
+				resp := MakeRequest(t, req, http.StatusCreated)
+
+				assert.Equal(t, fmt.Sprintf("/v2/%s/%s/blobs/%s", user.Name, image, blobDigest), resp.Header().Get("Location"))
+				assert.Equal(t, blobDigest, resp.Header().Get("Docker-Content-Digest"))
+
+				req = NewRequest(t, "POST", fmt.Sprintf("%s/blobs/uploads?mount=%s&from=%s", url, unknownDigest, "unknown/image"))
+				addTokenAuthHeader(req, userToken)
+				MakeRequest(t, req, http.StatusAccepted)
+
+				req = NewRequest(t, "POST", fmt.Sprintf("%s/blobs/uploads?mount=%s&from=%s/%s", url, blobDigest, user.Name, image))
+				addTokenAuthHeader(req, userToken)
+				resp = MakeRequest(t, req, http.StatusCreated)
+
+				assert.Equal(t, fmt.Sprintf("/v2/%s/%s/blobs/%s", user.Name, image, blobDigest), resp.Header().Get("Location"))
+				assert.Equal(t, blobDigest, resp.Header().Get("Docker-Content-Digest"))
+			})
+
 			for _, tag := range tags {
 				t.Run(fmt.Sprintf("[Tag:%s]", tag), func(t *testing.T) {
 					t.Run("UploadManifest", func(t *testing.T) {
@@ -445,21 +471,6 @@ func TestPackageContainer(t *testing.T) {
 				assert.Equal(t, indexManifestDigest, pd.Files[0].Properties.GetByName(container_module.PropertyDigest))
 			})
 
-			t.Run("UploadBlob/Mount", func(t *testing.T) {
-				defer tests.PrintCurrentTest(t)()
-
-				req := NewRequest(t, "POST", fmt.Sprintf("%s/blobs/uploads?mount=%s", url, unknownDigest))
-				addTokenAuthHeader(req, userToken)
-				MakeRequest(t, req, http.StatusAccepted)
-
-				req = NewRequest(t, "POST", fmt.Sprintf("%s/blobs/uploads?mount=%s", url, blobDigest))
-				addTokenAuthHeader(req, userToken)
-				resp := MakeRequest(t, req, http.StatusCreated)
-
-				assert.Equal(t, fmt.Sprintf("/v2/%s/%s/blobs/%s", user.Name, image, blobDigest), resp.Header().Get("Location"))
-				assert.Equal(t, blobDigest, resp.Header().Get("Docker-Content-Digest"))
-			})
-
 			t.Run("HeadBlob", func(t *testing.T) {
 				defer tests.PrintCurrentTest(t)()