frostfs-s3-gw/internal/neofs/tree.go

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package neofs
import (
"context"
"errors"
"fmt"
"io"
"strconv"
"strings"
"time"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neofs-s3-gw/api"
"github.com/nspcc-dev/neofs-s3-gw/api/data"
"github.com/nspcc-dev/neofs-s3-gw/api/layer"
"github.com/nspcc-dev/neofs-s3-gw/creds/accessbox"
"github.com/nspcc-dev/neofs-s3-gw/internal/neofs/services/tree"
cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
"github.com/nspcc-dev/neofs-sdk-go/user"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
)
type (
TreeClient struct {
key *keys.PrivateKey
conn *grpc.ClientConn
service tree.TreeServiceClient
}
TreeNode struct {
ID uint64
ObjID oid.ID
TimeStamp uint64
Meta map[string]string
}
getNodesParams struct {
CnrID cid.ID
TreeID string
Path []string
Meta []string
LatestOnly bool
AllAttrs bool
}
)
const (
versioningKV = "Versioning"
lockConfigurationKV = "LockConfiguration"
oidKV = "OID"
fileNameKV = "FileName"
isUnversionedKV = "IsUnversioned"
isTagKV = "IsTag"
uploadIDKV = "UploadId"
partNumberKV = "Number"
sizeKV = "Size"
etagKV = "ETag"
// keys for lock.
isLockKV = "IsLock"
legalHoldOIDKV = "LegalHoldOID"
retentionOIDKV = "RetentionOID"
untilDateKV = "UntilDate"
isComplianceKV = "IsCompliance"
// keys for delete marker nodes.
isDeleteMarkerKV = "IsDeleteMarker"
ownerKV = "Owner"
createdKV = "Created"
settingsFileName = "bucket-settings"
notifConfFileName = "bucket-notifications"
corsFilename = "bucket-cors"
emptyFileName = "<empty>" // to handle trailing and leading slash in name
bucketTaggingFilename = "bucket-tagging"
// versionTree -- ID of a tree with object versions.
versionTree = "version"
// systemTree -- ID of a tree with system objects
// i.e. bucket settings with versioning and lock configuration, cors, notifications.
systemTree = "system"
separator = "/"
userDefinedTagPrefix = "User-Tag-"
maxGetSubTreeDepth = 10 // current limit on storage node side
)
// NewTreeClient creates instance of TreeClient using provided address and create grpc connection.
func NewTreeClient(addr string, key *keys.PrivateKey) (*TreeClient, error) {
conn, err := grpc.Dial(addr, grpc.WithTransportCredentials(insecure.NewCredentials()))
if err != nil {
return nil, fmt.Errorf("did not connect: %v", err)
}
c := tree.NewTreeServiceClient(conn)
return &TreeClient{
key: key,
conn: conn,
service: c,
}, nil
}
type NodeResponse interface {
GetMeta() []*tree.KeyValue
GetNodeId() uint64
GetTimestamp() uint64
}
func newTreeNode(nodeInfo NodeResponse) (*TreeNode, error) {
var objID oid.ID
meta := make(map[string]string, len(nodeInfo.GetMeta()))
for _, kv := range nodeInfo.GetMeta() {
if kv.GetKey() == oidKV {
if err := objID.DecodeString(string(kv.GetValue())); err != nil {
return nil, err
}
continue
}
meta[kv.GetKey()] = string(kv.GetValue())
}
return &TreeNode{
ID: nodeInfo.GetNodeId(),
ObjID: objID,
TimeStamp: nodeInfo.GetTimestamp(),
Meta: meta,
}, nil
}
func (n *TreeNode) Get(key string) (string, bool) {
value, ok := n.Meta[key]
return value, ok
}
func (n *TreeNode) FileName() (string, bool) {
value, ok := n.Meta[fileNameKV]
if ok && value == emptyFileName {
value = ""
}
return value, ok
}
func newNodeVersion(filePath string, node NodeResponse) (*data.NodeVersion, error) {
treeNode, err := newTreeNode(node)
if err != nil {
return nil, fmt.Errorf("invalid tree node: %w", err)
}
return newNodeVersionFromTreeNode(filePath, treeNode), nil
}
func newNodeVersionFromTreeNode(filePath string, treeNode *TreeNode) *data.NodeVersion {
_, isUnversioned := treeNode.Get(isUnversionedKV)
_, isDeleteMarker := treeNode.Get(isDeleteMarkerKV)
version := &data.NodeVersion{
BaseNodeVersion: data.BaseNodeVersion{
ID: treeNode.ID,
OID: treeNode.ObjID,
Timestamp: treeNode.TimeStamp,
FilePath: filePath,
},
IsUnversioned: isUnversioned,
}
if isDeleteMarker {
var created time.Time
if createdStr, ok := treeNode.Get(createdKV); ok {
if utcMilli, err := strconv.ParseInt(createdStr, 10, 64); err == nil {
created = time.UnixMilli(utcMilli)
}
}
var owner user.ID
if ownerStr, ok := treeNode.Get(ownerKV); ok {
_ = owner.DecodeString(ownerStr)
}
version.DeleteMarker = &data.DeleteMarkerInfo{
Created: created,
Owner: owner,
}
}
return version
}
func newMultipartInfo(node NodeResponse) (*data.MultipartInfo, error) {
multipartInfo := &data.MultipartInfo{
ID: node.GetNodeId(),
Meta: make(map[string]string, len(node.GetMeta())),
}
for _, kv := range node.GetMeta() {
switch kv.GetKey() {
case uploadIDKV:
multipartInfo.UploadID = string(kv.GetValue())
case fileNameKV:
multipartInfo.Key = strings.TrimSuffix(string(kv.GetValue()), emptyFileName)
case createdKV:
if utcMilli, err := strconv.ParseInt(string(kv.GetValue()), 10, 64); err == nil {
multipartInfo.Created = time.UnixMilli(utcMilli)
}
case ownerKV:
_ = multipartInfo.Owner.DecodeString(string(kv.GetValue()))
default:
multipartInfo.Meta[kv.GetKey()] = string(kv.GetValue())
}
}
if multipartInfo.UploadID == "" {
return nil, fmt.Errorf("it's not a multipart node")
}
return multipartInfo, nil
}
func newPartInfo(node NodeResponse) (*data.PartInfo, error) {
var err error
partInfo := &data.PartInfo{}
for _, kv := range node.GetMeta() {
value := string(kv.GetValue())
switch kv.GetKey() {
case partNumberKV:
if partInfo.Number, err = strconv.Atoi(value); err != nil {
return nil, fmt.Errorf("invalid part number: %w", err)
}
case oidKV:
if err = partInfo.OID.DecodeString(value); err != nil {
return nil, fmt.Errorf("invalid oid: %w", err)
}
case etagKV:
partInfo.ETag = value
case sizeKV:
if partInfo.Size, err = strconv.ParseInt(value, 10, 64); err != nil {
return nil, fmt.Errorf("invalid part size: %w", err)
}
case createdKV:
var utcMilli int64
if utcMilli, err = strconv.ParseInt(value, 10, 64); err != nil {
return nil, fmt.Errorf("invalid created timestamp: %w", err)
}
partInfo.Created = time.UnixMilli(utcMilli)
}
}
if partInfo.Number <= 0 {
return nil, fmt.Errorf("it's not a part node")
}
return partInfo, nil
}
func (c *TreeClient) GetSettingsNode(ctx context.Context, cnrID cid.ID) (*data.BucketSettings, error) {
keysToReturn := []string{versioningKV, lockConfigurationKV}
node, err := c.getSystemNode(ctx, cnrID, []string{settingsFileName}, keysToReturn)
if err != nil {
return nil, fmt.Errorf("couldn't get node: %w", err)
}
settings := &data.BucketSettings{Versioning: data.VersioningUnversioned}
if versioningValue, ok := node.Get(versioningKV); ok {
settings.Versioning = versioningValue
}
if lockConfigurationValue, ok := node.Get(lockConfigurationKV); ok {
if settings.LockConfiguration, err = parseLockConfiguration(lockConfigurationValue); err != nil {
return nil, fmt.Errorf("settings node: invalid lock configuration: %w", err)
}
}
return settings, nil
}
func (c *TreeClient) PutSettingsNode(ctx context.Context, cnrID cid.ID, settings *data.BucketSettings) error {
node, err := c.getSystemNode(ctx, cnrID, []string{settingsFileName}, []string{})
isErrNotFound := errors.Is(err, layer.ErrNodeNotFound)
if err != nil && !isErrNotFound {
return fmt.Errorf("couldn't get node: %w", err)
}
meta := metaFromSettings(settings)
if isErrNotFound {
_, err = c.addNode(ctx, cnrID, systemTree, 0, meta)
return err
}
return c.moveNode(ctx, cnrID, systemTree, node.ID, 0, meta)
}
func (c *TreeClient) GetNotificationConfigurationNode(ctx context.Context, cnrID cid.ID) (oid.ID, error) {
node, err := c.getSystemNode(ctx, cnrID, []string{notifConfFileName}, []string{oidKV})
if err != nil {
return oid.ID{}, err
}
return node.ObjID, nil
}
func (c *TreeClient) PutNotificationConfigurationNode(ctx context.Context, cnrID cid.ID, objID oid.ID) (oid.ID, error) {
node, err := c.getSystemNode(ctx, cnrID, []string{notifConfFileName}, []string{oidKV})
isErrNotFound := errors.Is(err, layer.ErrNodeNotFound)
if err != nil && !isErrNotFound {
return oid.ID{}, fmt.Errorf("couldn't get node: %w", err)
}
meta := make(map[string]string)
meta[fileNameKV] = notifConfFileName
meta[oidKV] = objID.EncodeToString()
if isErrNotFound {
if _, err = c.addNode(ctx, cnrID, systemTree, 0, meta); err != nil {
return oid.ID{}, err
}
return oid.ID{}, layer.ErrNoNodeToRemove
}
return node.ObjID, c.moveNode(ctx, cnrID, systemTree, node.ID, 0, meta)
}
func (c *TreeClient) GetBucketCORS(ctx context.Context, cnrID cid.ID) (oid.ID, error) {
node, err := c.getSystemNode(ctx, cnrID, []string{corsFilename}, []string{oidKV})
if err != nil {
return oid.ID{}, err
}
return node.ObjID, nil
}
func (c *TreeClient) PutBucketCORS(ctx context.Context, cnrID cid.ID, objID oid.ID) (oid.ID, error) {
node, err := c.getSystemNode(ctx, cnrID, []string{corsFilename}, []string{oidKV})
isErrNotFound := errors.Is(err, layer.ErrNodeNotFound)
if err != nil && !isErrNotFound {
return oid.ID{}, fmt.Errorf("couldn't get node: %w", err)
}
meta := make(map[string]string)
meta[fileNameKV] = corsFilename
meta[oidKV] = objID.EncodeToString()
if isErrNotFound {
if _, err = c.addNode(ctx, cnrID, systemTree, 0, meta); err != nil {
return oid.ID{}, err
}
return oid.ID{}, layer.ErrNoNodeToRemove
}
return node.ObjID, c.moveNode(ctx, cnrID, systemTree, node.ID, 0, meta)
}
func (c *TreeClient) DeleteBucketCORS(ctx context.Context, cnrID cid.ID) (oid.ID, error) {
node, err := c.getSystemNode(ctx, cnrID, []string{corsFilename}, []string{oidKV})
if err != nil && !errors.Is(err, layer.ErrNodeNotFound) {
return oid.ID{}, err
}
if node != nil {
return node.ObjID, c.removeNode(ctx, cnrID, systemTree, node.ID)
}
return oid.ID{}, layer.ErrNoNodeToRemove
}
func (c *TreeClient) GetObjectTagging(ctx context.Context, cnrID cid.ID, objVersion *data.NodeVersion) (map[string]string, error) {
tagNode, err := c.getTreeNode(ctx, cnrID, objVersion.ID, isTagKV)
if err != nil {
return nil, err
}
return getObjectTagging(tagNode), nil
}
func getObjectTagging(tagNode *TreeNode) map[string]string {
if tagNode == nil {
return nil
}
meta := make(map[string]string)
for key, val := range tagNode.Meta {
if strings.HasPrefix(key, userDefinedTagPrefix) {
meta[strings.TrimPrefix(key, userDefinedTagPrefix)] = val
}
}
return meta
}
func (c *TreeClient) PutObjectTagging(ctx context.Context, cnrID cid.ID, objVersion *data.NodeVersion, tagSet map[string]string) error {
tagNode, err := c.getTreeNode(ctx, cnrID, objVersion.ID, isTagKV)
if err != nil {
return err
}
treeTagSet := make(map[string]string)
treeTagSet[isTagKV] = "true"
for key, val := range tagSet {
treeTagSet[userDefinedTagPrefix+key] = val
}
if tagNode == nil {
_, err = c.addNode(ctx, cnrID, versionTree, objVersion.ID, treeTagSet)
} else {
err = c.moveNode(ctx, cnrID, versionTree, tagNode.ID, objVersion.ID, treeTagSet)
}
return err
}
func (c *TreeClient) DeleteObjectTagging(ctx context.Context, cnrID cid.ID, objVersion *data.NodeVersion) error {
tagNode, err := c.getTreeNode(ctx, cnrID, objVersion.ID, isTagKV)
if err != nil {
return err
}
if tagNode == nil {
return nil
}
return c.removeNode(ctx, cnrID, versionTree, tagNode.ID)
}
func (c *TreeClient) GetBucketTagging(ctx context.Context, cnrID cid.ID) (map[string]string, error) {
node, err := c.getSystemNodeWithAllAttributes(ctx, cnrID, []string{bucketTaggingFilename})
if err != nil {
if strings.Contains(err.Error(), "not found") {
return nil, layer.ErrNodeNotFound
}
return nil, err
}
tags := make(map[string]string)
for key, val := range node.Meta {
if strings.HasPrefix(key, userDefinedTagPrefix) {
tags[strings.TrimPrefix(key, userDefinedTagPrefix)] = val
}
}
return tags, nil
}
func (c *TreeClient) PutBucketTagging(ctx context.Context, cnrID cid.ID, tagSet map[string]string) error {
node, err := c.getSystemNode(ctx, cnrID, []string{bucketTaggingFilename}, []string{})
isErrNotFound := errors.Is(err, layer.ErrNodeNotFound)
if err != nil && !isErrNotFound {
return fmt.Errorf("couldn't get node: %w", err)
}
treeTagSet := make(map[string]string)
treeTagSet[fileNameKV] = bucketTaggingFilename
for key, val := range tagSet {
treeTagSet[userDefinedTagPrefix+key] = val
}
if isErrNotFound {
_, err = c.addNode(ctx, cnrID, systemTree, 0, treeTagSet)
} else {
err = c.moveNode(ctx, cnrID, systemTree, node.ID, 0, treeTagSet)
}
return err
}
func (c *TreeClient) DeleteBucketTagging(ctx context.Context, cnrID cid.ID) error {
node, err := c.getSystemNode(ctx, cnrID, []string{bucketTaggingFilename}, nil)
if err != nil && !errors.Is(err, layer.ErrNodeNotFound) {
return err
}
if node != nil {
return c.removeNode(ctx, cnrID, systemTree, node.ID)
}
return nil
}
func (c *TreeClient) getTreeNode(ctx context.Context, cnrID cid.ID, nodeID uint64, key string) (*TreeNode, error) {
nodes, err := c.getTreeNodes(ctx, cnrID, nodeID, key)
if err != nil {
return nil, err
}
// if there will be many allocations, consider having separate
// implementations of 'getTreeNode' and 'getTreeNodes'
return nodes[key], nil
}
func (c *TreeClient) getTreeNodes(ctx context.Context, cnrID cid.ID, nodeID uint64, keys ...string) (map[string]*TreeNode, error) {
subtree, err := c.getSubTree(ctx, cnrID, versionTree, nodeID, 1)
if err != nil {
return nil, err
}
treeNodes := make(map[string]*TreeNode, len(keys))
for _, s := range subtree {
node, err := newTreeNode(s)
if err != nil {
return nil, err
}
for _, key := range keys {
if _, ok := node.Get(key); ok {
treeNodes[key] = node
break
}
}
if len(treeNodes) == len(keys) {
break
}
}
return treeNodes, nil
}
func (c *TreeClient) GetVersions(ctx context.Context, cnrID cid.ID, filepath string) ([]*data.NodeVersion, error) {
return c.getVersions(ctx, cnrID, versionTree, filepath, false)
}
func (c *TreeClient) GetLatestVersion(ctx context.Context, cnrID cid.ID, objectName string) (*data.NodeVersion, error) {
meta := []string{oidKV, isUnversionedKV, isDeleteMarkerKV}
path := pathFromName(objectName)
p := &getNodesParams{
CnrID: cnrID,
TreeID: versionTree,
Path: path,
Meta: meta,
LatestOnly: true,
AllAttrs: false,
}
nodes, err := c.getNodes(ctx, p)
if err != nil {
return nil, fmt.Errorf("couldn't get nodes: %w", err)
}
if len(nodes) == 0 {
return nil, layer.ErrNodeNotFound
}
return newNodeVersion(objectName, nodes[0])
}
// pathFromName splits name by '/' and add an empty marker if name has trailing or leading slash.
func pathFromName(objectName string) []string {
path := strings.Split(objectName, separator)
if path[0] == "" {
path[0] = emptyFileName
}
if path[len(path)-1] == "" {
path[len(path)-1] = emptyFileName
}
return path
}
func (c *TreeClient) GetLatestVersionsByPrefix(ctx context.Context, cnrID cid.ID, prefix string) ([]*data.NodeVersion, error) {
subTreeNodes, commonPrefix, err := c.getSubTreeByPrefix(ctx, cnrID, versionTree, prefix)
if err != nil {
return nil, err
}
var result []*data.NodeVersion
for _, node := range subTreeNodes {
latestNodes, err := c.getSubTreeVersions(ctx, cnrID, node.GetNodeId(), commonPrefix, true)
if err != nil {
return nil, err
}
result = append(result, latestNodes...)
}
return result, nil
}
func (c *TreeClient) determinePrefixNode(ctx context.Context, cnrID cid.ID, treeID, prefix string) (uint64, string, error) {
var rootID uint64
path := strings.Split(prefix, separator)
if len(path) > 1 && path[0] == "" {
path[0] = emptyFileName
}
tailPrefix := path[len(path)-1]
if len(path) > 1 {
var err error
rootID, err = c.getPrefixNodeID(ctx, cnrID, treeID, path[:len(path)-1])
if err != nil {
return 0, "", err
}
}
return rootID, tailPrefix, nil
}
func (c *TreeClient) getPrefixNodeID(ctx context.Context, cnrID cid.ID, treeID string, prefixPath []string) (uint64, error) {
p := &getNodesParams{
CnrID: cnrID,
TreeID: treeID,
Path: prefixPath,
LatestOnly: false,
AllAttrs: true,
}
nodes, err := c.getNodes(ctx, p)
if err != nil {
return 0, err
}
var intermediateNodes []uint64
for _, node := range nodes {
if isIntermediate(node) {
intermediateNodes = append(intermediateNodes, node.GetNodeId())
}
}
if len(intermediateNodes) == 0 {
return 0, layer.ErrNodeNotFound
}
if len(intermediateNodes) > 1 {
return 0, fmt.Errorf("found more than one intermediate nodes")
}
return intermediateNodes[0], nil
}
func (c *TreeClient) getSubTreeByPrefix(ctx context.Context, cnrID cid.ID, treeID, prefix string) ([]*tree.GetSubTreeResponse_Body, string, error) {
rootID, tailPrefix, err := c.determinePrefixNode(ctx, cnrID, treeID, prefix)
if err != nil {
if errors.Is(err, layer.ErrNodeNotFound) {
return nil, "", nil
}
return nil, "", err
}
subTree, err := c.getSubTree(ctx, cnrID, treeID, rootID, 1)
if err != nil {
if errors.Is(err, layer.ErrNodeNotFound) {
return nil, "", nil
}
return nil, "", err
}
result := make([]*tree.GetSubTreeResponse_Body, 0, len(subTree))
for _, node := range subTree {
if node.GetNodeId() != rootID && hasPrefix(node, tailPrefix) {
result = append(result, node)
}
}
return result, strings.TrimSuffix(prefix, tailPrefix), nil
}
func hasPrefix(node *tree.GetSubTreeResponse_Body, prefix string) bool {
for _, kv := range node.GetMeta() {
if kv.GetKey() == fileNameKV {
return strings.HasPrefix(string(kv.GetValue()), prefix)
}
}
return false
}
func isIntermediate(node *tree.GetNodeByPathResponse_Info) bool {
if len(node.GetMeta()) != 1 {
return false
}
return node.GetMeta()[0].GetKey() == fileNameKV
}
func (c *TreeClient) getSubTreeVersions(ctx context.Context, cnrID cid.ID, nodeID uint64, parentFilePath string, latestOnly bool) ([]*data.NodeVersion, error) {
subTree, err := c.getSubTree(ctx, cnrID, versionTree, nodeID, maxGetSubTreeDepth)
if err != nil {
return nil, err
}
var parentPrefix string
if parentFilePath != "" { // The root of subTree can also have a parent
parentPrefix = strings.TrimSuffix(parentFilePath, separator) + separator // To avoid 'foo//bar'
}
var emptyOID oid.ID
var filepath string
namesMap := make(map[uint64]string, len(subTree))
versions := make(map[string][]*data.NodeVersion, len(subTree))
for i, node := range subTree {
treeNode, fileName, err := parseTreeNode(node)
if err != nil {
continue
}
if i != 0 {
if filepath, err = formFilePath(node, fileName, namesMap); err != nil {
return nil, fmt.Errorf("invalid node order: %w", err)
}
} else {
filepath = parentPrefix + fileName
namesMap[treeNode.ID] = filepath
}
if treeNode.ObjID.Equals(emptyOID) { // The node can be intermediate but we still want to update namesMap
continue
}
key := formLatestNodeKey(node.GetParentId(), fileName)
versionNodes, ok := versions[key]
if !ok {
versionNodes = []*data.NodeVersion{newNodeVersionFromTreeNode(filepath, treeNode)}
} else if !latestOnly {
versionNodes = append(versionNodes, newNodeVersionFromTreeNode(filepath, treeNode))
} else if versionNodes[0].Timestamp <= treeNode.TimeStamp {
versionNodes[0] = newNodeVersionFromTreeNode(filepath, treeNode)
}
versions[key] = versionNodes
}
result := make([]*data.NodeVersion, 0, len(versions)) // consider use len(subTree)
for _, version := range versions {
if latestOnly && version[0].DeleteMarker != nil {
continue
}
result = append(result, version...)
}
return result, nil
}
func formFilePath(node *tree.GetSubTreeResponse_Body, fileName string, namesMap map[uint64]string) (string, error) {
parentPath, ok := namesMap[node.GetParentId()]
if !ok {
return "", fmt.Errorf("couldn't get parent path")
}
filepath := parentPath + separator + fileName
namesMap[node.GetNodeId()] = filepath
return filepath, nil
}
func parseTreeNode(node *tree.GetSubTreeResponse_Body) (*TreeNode, string, error) {
treeNode, err := newTreeNode(node)
if err != nil { // invalid OID attribute
return nil, "", err
}
fileName, ok := treeNode.FileName()
if !ok {
return nil, "", fmt.Errorf("doesn't contain FileName")
}
return treeNode, fileName, nil
}
func formLatestNodeKey(parentID uint64, fileName string) string {
return strconv.FormatUint(parentID, 10) + "." + fileName
}
func (c *TreeClient) GetAllVersionsByPrefix(ctx context.Context, cnrID cid.ID, prefix string) ([]*data.NodeVersion, error) {
prefixNodes, headPrefix, err := c.getSubTreeByPrefix(ctx, cnrID, versionTree, prefix)
if err != nil {
return nil, err
}
var result []*data.NodeVersion
for _, node := range prefixNodes {
versions, err := c.getSubTreeVersions(ctx, cnrID, node.GetNodeId(), headPrefix, false)
if err != nil {
return nil, err
}
result = append(result, versions...)
}
return result, nil
}
func (c *TreeClient) GetUnversioned(ctx context.Context, cnrID cid.ID, filepath string) (*data.NodeVersion, error) {
return c.getUnversioned(ctx, cnrID, versionTree, filepath)
}
func (c *TreeClient) getUnversioned(ctx context.Context, cnrID cid.ID, treeID, filepath string) (*data.NodeVersion, error) {
nodes, err := c.getVersions(ctx, cnrID, treeID, filepath, true)
if err != nil {
return nil, err
}
if len(nodes) > 1 {
return nil, fmt.Errorf("found more than one unversioned node")
}
if len(nodes) != 1 {
return nil, layer.ErrNodeNotFound
}
return nodes[0], nil
}
func (c *TreeClient) AddVersion(ctx context.Context, cnrID cid.ID, version *data.NodeVersion) error {
return c.addVersion(ctx, cnrID, versionTree, version)
}
func (c *TreeClient) RemoveVersion(ctx context.Context, cnrID cid.ID, id uint64) error {
return c.removeNode(ctx, cnrID, versionTree, id)
}
func (c *TreeClient) CreateMultipartUpload(ctx context.Context, cnrID cid.ID, info *data.MultipartInfo) error {
path := pathFromName(info.Key)
meta := metaFromMultipart(info)
return c.addNodeByPath(ctx, cnrID, systemTree, path[:len(path)-1], meta)
}
func (c *TreeClient) GetMultipartUploadsByPrefix(ctx context.Context, cnrID cid.ID, prefix string) ([]*data.MultipartInfo, error) {
subTreeNodes, _, err := c.getSubTreeByPrefix(ctx, cnrID, systemTree, prefix)
if err != nil {
return nil, err
}
var result []*data.MultipartInfo
for _, node := range subTreeNodes {
multipartUploads, err := c.getSubTreeMultipartUploads(ctx, cnrID, node.GetNodeId())
if err != nil {
return nil, err
}
result = append(result, multipartUploads...)
}
return result, nil
}
func (c *TreeClient) getSubTreeMultipartUploads(ctx context.Context, cnrID cid.ID, nodeID uint64) ([]*data.MultipartInfo, error) {
subTree, err := c.getSubTree(ctx, cnrID, systemTree, nodeID, maxGetSubTreeDepth)
if err != nil {
return nil, err
}
result := make([]*data.MultipartInfo, 0, len(subTree))
for _, node := range subTree {
multipartInfo, err := newMultipartInfo(node)
if err != nil { // missed uploadID (it's a part node)
continue
}
result = append(result, multipartInfo)
}
return result, nil
}
func (c *TreeClient) GetMultipartUpload(ctx context.Context, cnrID cid.ID, objectName, uploadID string) (*data.MultipartInfo, error) {
path := pathFromName(objectName)
p := &getNodesParams{
CnrID: cnrID,
TreeID: systemTree,
Path: path,
AllAttrs: true,
}
nodes, err := c.getNodes(ctx, p)
if err != nil {
return nil, err
}
for _, node := range nodes {
info, err := newMultipartInfo(node)
if err != nil {
continue
}
if info.UploadID == uploadID {
return info, nil
}
}
return nil, layer.ErrNodeNotFound
}
func (c *TreeClient) AddPart(ctx context.Context, cnrID cid.ID, multipartNodeID uint64, info *data.PartInfo) (oldObjIDToDelete oid.ID, err error) {
parts, err := c.getSubTree(ctx, cnrID, systemTree, multipartNodeID, 1)
if err != nil {
return oid.ID{}, err
}
meta := map[string]string{
partNumberKV: strconv.Itoa(info.Number),
oidKV: info.OID.EncodeToString(),
sizeKV: strconv.FormatInt(info.Size, 10),
createdKV: strconv.FormatInt(info.Created.UTC().UnixMilli(), 10),
etagKV: info.ETag,
}
var foundPartID uint64
for _, part := range parts {
if part.GetNodeId() == multipartNodeID {
continue
}
partInfo, err := newPartInfo(part)
if err != nil {
continue
}
if partInfo.Number == info.Number {
foundPartID = part.GetNodeId()
oldObjIDToDelete = partInfo.OID
break
}
}
if foundPartID != multipartNodeID {
if _, err = c.addNode(ctx, cnrID, systemTree, multipartNodeID, meta); err != nil {
return oid.ID{}, err
}
return oid.ID{}, layer.ErrNoNodeToRemove
}
return oldObjIDToDelete, c.moveNode(ctx, cnrID, systemTree, foundPartID, multipartNodeID, meta)
}
func (c *TreeClient) GetParts(ctx context.Context, cnrID cid.ID, multipartNodeID uint64) ([]*data.PartInfo, error) {
parts, err := c.getSubTree(ctx, cnrID, systemTree, multipartNodeID, 1)
if err != nil {
return nil, err
}
result := make([]*data.PartInfo, 0, len(parts))
for _, part := range parts {
if part.GetNodeId() == multipartNodeID {
continue
}
partInfo, err := newPartInfo(part)
if err != nil {
continue
}
result = append(result, partInfo)
}
return result, nil
}
func (c *TreeClient) DeleteMultipartUpload(ctx context.Context, cnrID cid.ID, multipartNodeID uint64) error {
return c.removeNode(ctx, cnrID, systemTree, multipartNodeID)
}
func (c *TreeClient) PutLock(ctx context.Context, cnrID cid.ID, nodeID uint64, lock *data.LockInfo) error {
meta := map[string]string{isLockKV: "true"}
if lock.IsLegalHoldSet() {
meta[legalHoldOIDKV] = lock.LegalHold().EncodeToString()
}
if lock.IsRetentionSet() {
meta[retentionOIDKV] = lock.Retention().EncodeToString()
meta[untilDateKV] = lock.UntilDate()
if lock.IsCompliance() {
meta[isComplianceKV] = "true"
}
}
if lock.ID() == 0 {
_, err := c.addNode(ctx, cnrID, versionTree, nodeID, meta)
return err
}
return c.moveNode(ctx, cnrID, versionTree, lock.ID(), nodeID, meta)
}
func (c *TreeClient) GetLock(ctx context.Context, cnrID cid.ID, nodeID uint64) (*data.LockInfo, error) {
lockNode, err := c.getTreeNode(ctx, cnrID, nodeID, isLockKV)
if err != nil {
return nil, err
}
return getLock(lockNode)
}
func getLock(lockNode *TreeNode) (*data.LockInfo, error) {
if lockNode == nil {
return &data.LockInfo{}, nil
}
lockInfo := data.NewLockInfo(lockNode.ID)
if legalHold, ok := lockNode.Get(legalHoldOIDKV); ok {
var legalHoldOID oid.ID
if err := legalHoldOID.DecodeString(legalHold); err != nil {
return nil, fmt.Errorf("invalid legal hold object id: %w", err)
}
lockInfo.SetLegalHold(legalHoldOID)
}
if retention, ok := lockNode.Get(retentionOIDKV); ok {
var retentionOID oid.ID
if err := retentionOID.DecodeString(retention); err != nil {
return nil, fmt.Errorf("invalid retention object id: %w", err)
}
_, isCompliance := lockNode.Get(isComplianceKV)
untilDate, _ := lockNode.Get(untilDateKV)
lockInfo.SetRetention(retentionOID, untilDate, isCompliance)
}
return lockInfo, nil
}
func (c *TreeClient) GetObjectTaggingAndLock(ctx context.Context, cnrID cid.ID, objVersion *data.NodeVersion) (map[string]string, *data.LockInfo, error) {
nodes, err := c.getTreeNodes(ctx, cnrID, objVersion.ID, isTagKV, isLockKV)
if err != nil {
return nil, nil, err
}
lockInfo, err := getLock(nodes[isLockKV])
if err != nil {
return nil, nil, err
}
return getObjectTagging(nodes[isTagKV]), lockInfo, nil
}
func (c *TreeClient) Close() error {
if c.conn != nil {
return c.conn.Close()
}
return nil
}
func (c *TreeClient) addVersion(ctx context.Context, cnrID cid.ID, treeID string, version *data.NodeVersion) error {
path := pathFromName(version.FilePath)
meta := map[string]string{
oidKV: version.OID.EncodeToString(),
fileNameKV: path[len(path)-1],
}
if version.DeleteMarker != nil {
meta[isDeleteMarkerKV] = "true"
meta[ownerKV] = version.DeleteMarker.Owner.EncodeToString()
meta[createdKV] = strconv.FormatInt(version.DeleteMarker.Created.UTC().UnixMilli(), 10)
}
if version.IsUnversioned {
meta[isUnversionedKV] = "true"
node, err := c.getUnversioned(ctx, cnrID, treeID, version.FilePath)
if err == nil {
parentID, err := c.getParent(ctx, cnrID, treeID, node.ID)
if err != nil {
return err
}
return c.moveNode(ctx, cnrID, treeID, node.ID, parentID, meta)
}
if !errors.Is(err, layer.ErrNodeNotFound) {
return err
}
}
return c.addNodeByPath(ctx, cnrID, treeID, path[:len(path)-1], meta)
}
func (c *TreeClient) getVersions(ctx context.Context, cnrID cid.ID, treeID, filepath string, onlyUnversioned bool) ([]*data.NodeVersion, error) {
keysToReturn := []string{oidKV, isUnversionedKV, isDeleteMarkerKV}
path := pathFromName(filepath)
p := &getNodesParams{
CnrID: cnrID,
TreeID: treeID,
Path: path,
Meta: keysToReturn,
LatestOnly: false,
AllAttrs: false,
}
nodes, err := c.getNodes(ctx, p)
if err != nil {
if strings.Contains(err.Error(), "not found") {
return nil, nil
}
return nil, fmt.Errorf("couldn't get nodes: %w", err)
}
result := make([]*data.NodeVersion, 0, len(nodes))
for _, node := range nodes {
nodeVersion, err := newNodeVersion(filepath, node)
if err != nil {
return nil, err
}
if onlyUnversioned && !nodeVersion.IsUnversioned {
continue
}
result = append(result, nodeVersion)
}
return result, nil
}
func (c *TreeClient) getParent(ctx context.Context, cnrID cid.ID, treeID string, id uint64) (uint64, error) {
subTree, err := c.getSubTree(ctx, cnrID, treeID, id, 0)
if err != nil {
return 0, err
}
return subTree[0].GetParentId(), nil
}
func (c *TreeClient) getSubTree(ctx context.Context, cnrID cid.ID, treeID string, rootID uint64, depth uint32) ([]*tree.GetSubTreeResponse_Body, error) {
request := &tree.GetSubTreeRequest{
Body: &tree.GetSubTreeRequest_Body{
ContainerId: cnrID[:],
TreeId: treeID,
RootId: rootID,
Depth: depth,
BearerToken: getBearer(ctx),
},
}
if err := c.signRequest(request.Body, func(key, sign []byte) {
request.Signature = &tree.Signature{
Key: key,
Sign: sign,
}
}); err != nil {
return nil, err
}
cli, err := c.service.GetSubTree(ctx, request)
if err != nil {
if strings.Contains(err.Error(), "not found") {
return nil, layer.ErrNodeNotFound
}
return nil, fmt.Errorf("failed to get sub tree client: %w", err)
}
var subtree []*tree.GetSubTreeResponse_Body
for {
resp, err := cli.Recv()
if err == io.EOF {
break
} else if err != nil {
if strings.Contains(err.Error(), "not found") {
return nil, layer.ErrNodeNotFound
}
return nil, fmt.Errorf("failed to get sub tree: %w", err)
}
subtree = append(subtree, resp.Body)
}
return subtree, nil
}
func metaFromSettings(settings *data.BucketSettings) map[string]string {
results := make(map[string]string, 3)
results[fileNameKV] = settingsFileName
results[versioningKV] = settings.Versioning
results[lockConfigurationKV] = encodeLockConfiguration(settings.LockConfiguration)
return results
}
func metaFromMultipart(info *data.MultipartInfo) map[string]string {
info.Meta[fileNameKV] = info.Key
info.Meta[uploadIDKV] = info.UploadID
info.Meta[ownerKV] = info.Owner.EncodeToString()
info.Meta[createdKV] = strconv.FormatInt(info.Created.UTC().UnixMilli(), 10)
return info.Meta
}
func (c *TreeClient) getSystemNode(ctx context.Context, cnrID cid.ID, path, meta []string) (*TreeNode, error) {
return c.getNode(ctx, cnrID, systemTree, path, meta, false)
}
func (c *TreeClient) getSystemNodeWithAllAttributes(ctx context.Context, cnrID cid.ID, path []string) (*TreeNode, error) {
return c.getNode(ctx, cnrID, systemTree, path, []string{}, true)
}
func (c *TreeClient) getNode(ctx context.Context, cnrID cid.ID, treeID string, path, meta []string, allAttrs bool) (*TreeNode, error) {
p := &getNodesParams{
CnrID: cnrID,
TreeID: treeID,
Path: path,
Meta: meta,
LatestOnly: false,
AllAttrs: allAttrs,
}
nodes, err := c.getNodes(ctx, p)
if err != nil {
return nil, fmt.Errorf("couldn't get nodes: %w", err)
}
if len(nodes) == 0 {
return nil, layer.ErrNodeNotFound
}
if len(nodes) != 1 {
return nil, fmt.Errorf("found more than one node")
}
return newTreeNode(nodes[0])
}
func (c *TreeClient) getNodes(ctx context.Context, p *getNodesParams) ([]*tree.GetNodeByPathResponse_Info, error) {
request := &tree.GetNodeByPathRequest{
Body: &tree.GetNodeByPathRequest_Body{
ContainerId: p.CnrID[:],
TreeId: p.TreeID,
Path: p.Path,
Attributes: p.Meta,
PathAttribute: fileNameKV,
LatestOnly: p.LatestOnly,
AllAttributes: p.AllAttrs,
BearerToken: getBearer(ctx),
},
}
if err := c.signRequest(request.Body, func(key, sign []byte) {
request.Signature = &tree.Signature{
Key: key,
Sign: sign,
}
}); err != nil {
return nil, err
}
resp, err := c.service.GetNodeByPath(ctx, request)
if err != nil {
if strings.Contains(err.Error(), "not found") {
return nil, layer.ErrNodeNotFound
}
return nil, fmt.Errorf("failed to get node path: %w", err)
}
return resp.GetBody().GetNodes(), nil
}
func getBearer(ctx context.Context) []byte {
if bd, ok := ctx.Value(api.BoxData).(*accessbox.Box); ok && bd != nil && bd.Gate != nil {
if bd.Gate.BearerToken != nil {
return bd.Gate.BearerToken.Marshal()
}
}
return nil
}
func (c *TreeClient) addNode(ctx context.Context, cnrID cid.ID, treeID string, parent uint64, meta map[string]string) (uint64, error) {
request := &tree.AddRequest{
Body: &tree.AddRequest_Body{
ContainerId: cnrID[:],
TreeId: treeID,
ParentId: parent,
Meta: metaToKV(meta),
BearerToken: getBearer(ctx),
},
}
if err := c.signRequest(request.Body, func(key, sign []byte) {
request.Signature = &tree.Signature{
Key: key,
Sign: sign,
}
}); err != nil {
return 0, err
}
resp, err := c.service.Add(ctx, request)
if err != nil {
return 0, err
}
return resp.GetBody().GetNodeId(), nil
}
func (c *TreeClient) addNodeByPath(ctx context.Context, cnrID cid.ID, treeID string, path []string, meta map[string]string) error {
request := &tree.AddByPathRequest{
Body: &tree.AddByPathRequest_Body{
ContainerId: cnrID[:],
TreeId: treeID,
Path: path,
Meta: metaToKV(meta),
PathAttribute: fileNameKV,
BearerToken: getBearer(ctx),
},
}
if err := c.signRequest(request.Body, func(key, sign []byte) {
request.Signature = &tree.Signature{
Key: key,
Sign: sign,
}
}); err != nil {
return err
}
_, err := c.service.AddByPath(ctx, request)
return err
}
func (c *TreeClient) moveNode(ctx context.Context, cnrID cid.ID, treeID string, nodeID, parentID uint64, meta map[string]string) error {
request := &tree.MoveRequest{
Body: &tree.MoveRequest_Body{
ContainerId: cnrID[:],
TreeId: treeID,
NodeId: nodeID,
ParentId: parentID,
Meta: metaToKV(meta),
BearerToken: getBearer(ctx),
},
}
if err := c.signRequest(request.Body, func(key, sign []byte) {
request.Signature = &tree.Signature{
Key: key,
Sign: sign,
}
}); err != nil {
return err
}
_, err := c.service.Move(ctx, request)
return err
}
func (c *TreeClient) removeNode(ctx context.Context, cnrID cid.ID, treeID string, nodeID uint64) error {
request := &tree.RemoveRequest{
Body: &tree.RemoveRequest_Body{
ContainerId: cnrID[:],
TreeId: treeID,
NodeId: nodeID,
BearerToken: getBearer(ctx),
},
}
if err := c.signRequest(request.Body, func(key, sign []byte) {
request.Signature = &tree.Signature{
Key: key,
Sign: sign,
}
}); err != nil {
return err
}
_, err := c.service.Remove(ctx, request)
return err
}
func metaToKV(meta map[string]string) []*tree.KeyValue {
result := make([]*tree.KeyValue, 0, len(meta))
for key, value := range meta {
result = append(result, &tree.KeyValue{Key: key, Value: []byte(value)})
}
return result
}
func parseLockConfiguration(value string) (*data.ObjectLockConfiguration, error) {
result := &data.ObjectLockConfiguration{}
if len(value) == 0 {
return result, nil
}
lockValues := strings.Split(value, ",")
result.ObjectLockEnabled = lockValues[0]
if len(lockValues) == 1 {
return result, nil
}
if len(lockValues) != 4 {
return nil, fmt.Errorf("invalid lock configuration: %s", value)
}
var err error
var days, years int64
if len(lockValues[1]) > 0 {
if days, err = strconv.ParseInt(lockValues[1], 10, 64); err != nil {
return nil, fmt.Errorf("invalid lock configuration: %s", value)
}
}
if len(lockValues[3]) > 0 {
if years, err = strconv.ParseInt(lockValues[3], 10, 64); err != nil {
return nil, fmt.Errorf("invalid lock configuration: %s", value)
}
}
result.Rule = &data.ObjectLockRule{
DefaultRetention: &data.DefaultRetention{
Days: days,
Mode: lockValues[2],
Years: years,
},
}
return result, nil
}
func encodeLockConfiguration(conf *data.ObjectLockConfiguration) string {
if conf == nil {
return ""
}
if conf.Rule == nil || conf.Rule.DefaultRetention == nil {
return conf.ObjectLockEnabled
}
defaults := conf.Rule.DefaultRetention
return fmt.Sprintf("%s,%d,%s,%d", conf.ObjectLockEnabled, defaults.Days, defaults.Mode, defaults.Years)
}