[#143] Fix NoSuchKey error on get/head

Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>

api/handler/delete_test.go

@@ -8,6 +8,7 @@ import (
 
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
+	apiErrors "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
 	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
 	"github.com/stretchr/testify/require"
@@ -25,11 +26,7 @@ func TestDeleteBucketOnAlreadyRemovedError(t *testing.T) {
 
 	putObject(t, hc, bktName, objName)
 
-	nodeVersion, err := hc.tree.GetUnversioned(hc.context, bktInfo, objName)
-	require.NoError(t, err)
-	var addr oid.Address
-	addr.SetContainer(bktInfo.CID)
-	addr.SetObject(nodeVersion.OID)
+	addr := getAddressOfLastVersion(hc, bktInfo, objName)
 	hc.tp.SetObjectError(addr, apistatus.ObjectAlreadyRemoved{})
 
 	deleteObjects(t, hc, bktName, [][2]string{{objName, emptyVersion}})
@@ -37,6 +34,15 @@ func TestDeleteBucketOnAlreadyRemovedError(t *testing.T) {
 	deleteBucket(t, hc, bktName, http.StatusNoContent)
 }
 
+func getAddressOfLastVersion(hc *handlerContext, bktInfo *data.BucketInfo, objName string) oid.Address {
+	nodeVersion, err := hc.tree.GetLatestVersion(hc.context, bktInfo, objName)
+	require.NoError(hc.t, err)
+	var addr oid.Address
+	addr.SetContainer(bktInfo.CID)
+	addr.SetObject(nodeVersion.OID)
+	return addr
+}
+
 func TestDeleteBucket(t *testing.T) {
 	tc := prepareHandlerContext(t)
 
@@ -434,6 +440,15 @@ func checkNotFound(t *testing.T, tc *handlerContext, bktName, objName, version s
 	assertStatus(t, w, http.StatusNotFound)
 }
 
+func headObjectAssertS3Error(hc *handlerContext, bktName, objName, version string, code apiErrors.ErrorCode) {
+	query := make(url.Values)
+	query.Add(api.QueryVersionID, version)
+
+	w, r := prepareTestFullRequest(hc, bktName, objName, query, nil)
+	hc.Handler().HeadObjectHandler(w, r)
+	assertS3Error(hc.t, w, apiErrors.GetAPIError(code))
+}
+
 func checkFound(t *testing.T, tc *handlerContext, bktName, objName, version string) {
 	query := make(url.Values)
 	query.Add(api.QueryVersionID, version)

api/handler/handlers_test.go

@@ -14,6 +14,7 @@ import (
 	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
+	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/cache"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/resolver"
@@ -83,6 +84,14 @@ func (p *xmlDecoderProviderMock) NewCompleteMultipartDecoder(r io.Reader) *xml.D
 }
 
 func prepareHandlerContext(t *testing.T) *handlerContext {
+	return prepareHandlerContextBase(t, false)
+}
+
+func prepareHandlerContextWithMinCache(t *testing.T) *handlerContext {
+	return prepareHandlerContextBase(t, true)
+}
+
+func prepareHandlerContextBase(t *testing.T, minCache bool) *handlerContext {
 	key, err := keys.NewPrivateKey()
 	require.NoError(t, err)
 
@@ -99,8 +108,13 @@ func prepareHandlerContext(t *testing.T) *handlerContext {
 
 	treeMock := NewTreeServiceMock(t)
 
+	cacheCfg := layer.DefaultCachesConfigs(l)
+	if minCache {
+		cacheCfg = getMinCacheConfig(l)
+	}
+
 	layerCfg := &layer.Config{
-		Caches:      layer.DefaultCachesConfigs(zap.NewExample()),
+		Caches:      cacheCfg,
 		AnonKey:     layer.AnonymousKey{Key: key},
 		Resolver:    testResolver,
 		TreeService: treeMock,
@@ -129,6 +143,23 @@ func prepareHandlerContext(t *testing.T) *handlerContext {
 	}
 }
 
+func getMinCacheConfig(logger *zap.Logger) *layer.CachesConfig {
+	minCacheCfg := &cache.Config{
+		Size:     1,
+		Lifetime: 1,
+		Logger:   logger,
+	}
+	return &layer.CachesConfig{
+		Logger:        logger,
+		Objects:       minCacheCfg,
+		ObjectsList:   minCacheCfg,
+		Names:         minCacheCfg,
+		Buckets:       minCacheCfg,
+		System:        minCacheCfg,
+		AccessControl: minCacheCfg,
+	}
+}
+
 func NewTreeServiceMock(t *testing.T) *tree.Tree {
 	memCli, err := tree.NewTreeServiceClientMemory()
 	require.NoError(t, err)

api/handler/head_test.go

@@ -7,8 +7,10 @@ import (
 	"time"
 
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
+	s3errors "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
+	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/stretchr/testify/require"
@@ -86,6 +88,24 @@ func TestInvalidAccessThroughCache(t *testing.T) {
 	assertStatus(t, w, http.StatusForbidden)
 }
 
+func TestHeadObject(t *testing.T) {
+	hc := prepareHandlerContextWithMinCache(t)
+	bktName, objName := "bucket", "obj"
+	bktInfo, objInfo := createVersionedBucketAndObject(hc.t, hc, bktName, objName)
+
+	putObject(hc.t, hc, bktName, objName)
+
+	checkFound(hc.t, hc, bktName, objName, objInfo.VersionID())
+	checkFound(hc.t, hc, bktName, objName, emptyVersion)
+
+	addr := getAddressOfLastVersion(hc, bktInfo, objName)
+	hc.tp.SetObjectError(addr, apistatus.ObjectNotFound{})
+	hc.tp.SetObjectError(objInfo.Address(), apistatus.ObjectNotFound{})
+
+	headObjectAssertS3Error(hc, bktName, objName, objInfo.VersionID(), s3errors.ErrNoSuchVersion)
+	headObjectAssertS3Error(hc, bktName, objName, emptyVersion, s3errors.ErrNoSuchKey)
+}
+
 func TestIsAvailableToResolve(t *testing.T) {
 	list := []string{"container", "s3"}
 

api/layer/object.go

@@ -319,6 +319,9 @@ func (n *layer) headLastVersionIfNotDeleted(ctx context.Context, bkt *data.Bucke
 
 	meta, err := n.objectHead(ctx, bkt, node.OID)
 	if err != nil {
+		if client.IsErrObjectNotFound(err) {
+			return nil, fmt.Errorf("%w: %s", apiErrors.GetAPIError(apiErrors.ErrNoSuchKey), err.Error())
+		}
 		return nil, err
 	}
 	objInfo := objectInfoFromMeta(bkt, meta)