package tree import ( "context" "errors" "fmt" "io" "sort" "strconv" "strings" "time" "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/middleware" "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/logs" oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id" "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user" "go.uber.org/zap" ) type ( Tree struct { service ServiceClient log *zap.Logger } // ServiceClient is a client to interact with tree service. // Each method must return ErrNodeNotFound or ErrNodeAccessDenied if relevant. ServiceClient interface { GetNodes(ctx context.Context, p *GetNodesParams) ([]NodeResponse, error) GetSubTree(ctx context.Context, bktInfo *data.BucketInfo, treeID string, rootID uint64, depth uint32) ([]NodeResponse, error) GetSubTreeStream(ctx context.Context, bktInfo *data.BucketInfo, treeID string, rootID uint64, depth uint32) (SubTreeStream, error) AddNode(ctx context.Context, bktInfo *data.BucketInfo, treeID string, parent uint64, meta map[string]string) (uint64, error) AddNodeByPath(ctx context.Context, bktInfo *data.BucketInfo, treeID string, path []string, meta map[string]string) (uint64, error) MoveNode(ctx context.Context, bktInfo *data.BucketInfo, treeID string, nodeID, parentID uint64, meta map[string]string) error RemoveNode(ctx context.Context, bktInfo *data.BucketInfo, treeID string, nodeID uint64) error } SubTreeStream interface { Next() (NodeResponse, error) } treeNode struct { ID uint64 ParentID uint64 ObjID oid.ID TimeStamp uint64 Size uint64 Meta map[string]string } GetNodesParams struct { BktInfo *data.BucketInfo TreeID string Path []string Meta []string LatestOnly bool AllAttrs bool } ) const ( FileNameKey = "FileName" ) var ( // ErrNodeNotFound is returned from ServiceClient in case of not found error. ErrNodeNotFound = layer.ErrNodeNotFound // ErrNodeAccessDenied is returned from ServiceClient service in case of access denied error. ErrNodeAccessDenied = layer.ErrNodeAccessDenied // ErrGatewayTimeout is returned from ServiceClient service in case of timeout error. ErrGatewayTimeout = layer.ErrGatewayTimeout ) const ( versioningKV = "Versioning" lockConfigurationKV = "LockConfiguration" oidKV = "OID" isCombinedKV = "IsCombined" isUnversionedKV = "IsUnversioned" isTagKV = "IsTag" uploadIDKV = "UploadId" partNumberKV = "Number" sizeKV = "Size" etagKV = "ETag" md5KV = "MD5" finishedKV = "Finished" // 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" 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 = 0 // means all subTree ) // NewTree creates instance of Tree using provided address and create grpc connection. func NewTree(service ServiceClient, log *zap.Logger) *Tree { return &Tree{ service: service, log: log, } } type Meta interface { GetKey() string GetValue() []byte } type NodeResponse interface { GetMeta() []Meta GetNodeID() uint64 GetParentID() uint64 GetTimestamp() uint64 } func newTreeNode(nodeInfo NodeResponse) (*treeNode, error) { treeNode := &treeNode{ ID: nodeInfo.GetNodeID(), ParentID: nodeInfo.GetParentID(), TimeStamp: nodeInfo.GetTimestamp(), Meta: make(map[string]string, len(nodeInfo.GetMeta())), } for _, kv := range nodeInfo.GetMeta() { switch kv.GetKey() { case oidKV: if err := treeNode.ObjID.DecodeString(string(kv.GetValue())); err != nil { return nil, err } case sizeKV: if sizeStr := string(kv.GetValue()); len(sizeStr) > 0 { var err error if treeNode.Size, err = strconv.ParseUint(sizeStr, 10, 64); err != nil { return nil, fmt.Errorf("invalid size value '%s': %w", sizeStr, err) } } default: treeNode.Meta[kv.GetKey()] = string(kv.GetValue()) } } return treeNode, 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[FileNameKey] 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) _, isCombined := treeNode.Get(isCombinedKV) eTag, _ := treeNode.Get(etagKV) md5, _ := treeNode.Get(md5KV) version := &data.NodeVersion{ BaseNodeVersion: data.BaseNodeVersion{ ID: treeNode.ID, ParenID: treeNode.ParentID, OID: treeNode.ObjID, Timestamp: treeNode.TimeStamp, ETag: eTag, MD5: md5, Size: treeNode.Size, FilePath: filePath, IsDeleteMarker: isDeleteMarker, }, IsUnversioned: isUnversioned, IsCombined: isCombined, } if createdStr, ok := treeNode.Get(createdKV); ok { if utcMilli, err := strconv.ParseInt(createdStr, 10, 64); err == nil { created := time.UnixMilli(utcMilli) version.Created = &created } } if ownerStr, ok := treeNode.Get(ownerKV); ok { var owner user.ID if err := owner.DecodeString(ownerStr); err == nil { version.Owner = &owner } } return version } func newMultipartInfoFromTreeNode(filePath string, treeNode *treeNode) (*data.MultipartInfo, error) { uploadID, _ := treeNode.Get(uploadIDKV) if uploadID == "" { return nil, fmt.Errorf("it's not a multipart node") } multipartInfo := &data.MultipartInfo{ ID: treeNode.ID, Key: filePath, UploadID: uploadID, Meta: treeNode.Meta, } ownerID, _ := treeNode.Get(ownerKV) _ = multipartInfo.Owner.DecodeString(ownerID) created, _ := treeNode.Get(createdKV) if utcMilli, err := strconv.ParseInt(created, 10, 64); err == nil { multipartInfo.Created = time.UnixMilli(utcMilli) } finished, _ := treeNode.Get(finishedKV) if flag, err := strconv.ParseBool(finished); err == nil { multipartInfo.Finished = flag } return multipartInfo, nil } 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 FileNameKey: multipartInfo.Key = string(kv.GetValue()) 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())) case finishedKV: if isFinished, err := strconv.ParseBool(string(kv.GetValue())); err == nil { multipartInfo.Finished = isFinished } 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.ParseUint(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) case md5KV: partInfo.MD5 = value } } if partInfo.Number <= 0 { return nil, fmt.Errorf("it's not a part node") } return partInfo, nil } func (c *Tree) GetSettingsNode(ctx context.Context, bktInfo *data.BucketInfo) (*data.BucketSettings, error) { keysToReturn := []string{versioningKV, lockConfigurationKV} node, err := c.getSystemNode(ctx, bktInfo, []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 *Tree) PutSettingsNode(ctx context.Context, bktInfo *data.BucketInfo, settings *data.BucketSettings) error { node, err := c.getSystemNode(ctx, bktInfo, []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.service.AddNode(ctx, bktInfo, systemTree, 0, meta) return err } return c.service.MoveNode(ctx, bktInfo, systemTree, node.ID, 0, meta) } func (c *Tree) GetNotificationConfigurationNode(ctx context.Context, bktInfo *data.BucketInfo) (oid.ID, error) { node, err := c.getSystemNode(ctx, bktInfo, []string{notifConfFileName}, []string{oidKV}) if err != nil { return oid.ID{}, err } return node.ObjID, nil } func (c *Tree) PutNotificationConfigurationNode(ctx context.Context, bktInfo *data.BucketInfo, objID oid.ID) (oid.ID, error) { node, err := c.getSystemNode(ctx, bktInfo, []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[FileNameKey] = notifConfFileName meta[oidKV] = objID.EncodeToString() if isErrNotFound { if _, err = c.service.AddNode(ctx, bktInfo, systemTree, 0, meta); err != nil { return oid.ID{}, err } return oid.ID{}, layer.ErrNoNodeToRemove } return node.ObjID, c.service.MoveNode(ctx, bktInfo, systemTree, node.ID, 0, meta) } func (c *Tree) GetBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (oid.ID, error) { node, err := c.getSystemNode(ctx, bktInfo, []string{corsFilename}, []string{oidKV}) if err != nil { return oid.ID{}, err } return node.ObjID, nil } func (c *Tree) PutBucketCORS(ctx context.Context, bktInfo *data.BucketInfo, objID oid.ID) (oid.ID, error) { node, err := c.getSystemNode(ctx, bktInfo, []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[FileNameKey] = corsFilename meta[oidKV] = objID.EncodeToString() if isErrNotFound { if _, err = c.service.AddNode(ctx, bktInfo, systemTree, 0, meta); err != nil { return oid.ID{}, err } return oid.ID{}, layer.ErrNoNodeToRemove } return node.ObjID, c.service.MoveNode(ctx, bktInfo, systemTree, node.ID, 0, meta) } func (c *Tree) DeleteBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (oid.ID, error) { node, err := c.getSystemNode(ctx, bktInfo, []string{corsFilename}, []string{oidKV}) if err != nil && !errors.Is(err, layer.ErrNodeNotFound) { return oid.ID{}, err } if node != nil { return node.ObjID, c.service.RemoveNode(ctx, bktInfo, systemTree, node.ID) } return oid.ID{}, layer.ErrNoNodeToRemove } func (c *Tree) GetObjectTagging(ctx context.Context, bktInfo *data.BucketInfo, objVersion *data.NodeVersion) (map[string]string, error) { tagNode, err := c.getTreeNode(ctx, bktInfo, 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 *Tree) PutObjectTagging(ctx context.Context, bktInfo *data.BucketInfo, objVersion *data.NodeVersion, tagSet map[string]string) error { tagNode, err := c.getTreeNode(ctx, bktInfo, 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.service.AddNode(ctx, bktInfo, versionTree, objVersion.ID, treeTagSet) } else { err = c.service.MoveNode(ctx, bktInfo, versionTree, tagNode.ID, objVersion.ID, treeTagSet) } return err } func (c *Tree) DeleteObjectTagging(ctx context.Context, bktInfo *data.BucketInfo, objVersion *data.NodeVersion) error { return c.PutObjectTagging(ctx, bktInfo, objVersion, nil) } func (c *Tree) GetBucketTagging(ctx context.Context, bktInfo *data.BucketInfo) (map[string]string, error) { node, err := c.getSystemNodeWithAllAttributes(ctx, bktInfo, []string{bucketTaggingFilename}) if err != nil { 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 *Tree) PutBucketTagging(ctx context.Context, bktInfo *data.BucketInfo, tagSet map[string]string) error { node, err := c.getSystemNode(ctx, bktInfo, []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[FileNameKey] = bucketTaggingFilename for key, val := range tagSet { treeTagSet[userDefinedTagPrefix+key] = val } if isErrNotFound { _, err = c.service.AddNode(ctx, bktInfo, systemTree, 0, treeTagSet) } else { err = c.service.MoveNode(ctx, bktInfo, systemTree, node.ID, 0, treeTagSet) } return err } func (c *Tree) DeleteBucketTagging(ctx context.Context, bktInfo *data.BucketInfo) error { return c.PutBucketTagging(ctx, bktInfo, nil) } func (c *Tree) getTreeNode(ctx context.Context, bktInfo *data.BucketInfo, nodeID uint64, key string) (*treeNode, error) { nodes, err := c.getTreeNodes(ctx, bktInfo, 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 *Tree) getTreeNodes(ctx context.Context, bktInfo *data.BucketInfo, nodeID uint64, keys ...string) (map[string]*treeNode, error) { subtree, err := c.service.GetSubTree(ctx, bktInfo, versionTree, nodeID, 2) 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 *Tree) GetVersions(ctx context.Context, bktInfo *data.BucketInfo, filepath string) ([]*data.NodeVersion, error) { return c.getVersions(ctx, bktInfo, versionTree, filepath, false) } func (c *Tree) GetLatestVersion(ctx context.Context, bktInfo *data.BucketInfo, objectName string) (*data.NodeVersion, error) { meta := []string{oidKV, isUnversionedKV, isDeleteMarkerKV, etagKV, sizeKV, md5KV} path := pathFromName(objectName) p := &GetNodesParams{ BktInfo: bktInfo, TreeID: versionTree, Path: path, Meta: meta, LatestOnly: false, AllAttrs: false, } nodes, err := c.service.GetNodes(ctx, p) if err != nil { return nil, err } latestNode, err := getLatestNode(nodes) if err != nil { return nil, err } return newNodeVersion(objectName, latestNode) } func getLatestNode(nodes []NodeResponse) (NodeResponse, error) { var ( maxCreationTime uint64 targetIndexNode = -1 ) for i, node := range nodes { currentCreationTime := node.GetTimestamp() if checkExistOID(node.GetMeta()) && currentCreationTime > maxCreationTime { maxCreationTime = currentCreationTime targetIndexNode = i } } if targetIndexNode == -1 { return nil, layer.ErrNodeNotFound } return nodes[targetIndexNode], nil } func checkExistOID(meta []Meta) bool { for _, kv := range meta { if kv.GetKey() == "OID" { return true } } return false } // pathFromName splits name by '/'. func pathFromName(objectName string) []string { return strings.Split(objectName, separator) } type DummySubTreeStream struct { data NodeResponse read bool } func (s *DummySubTreeStream) Next() (NodeResponse, error) { if s.read { return nil, io.EOF } s.read = true return s.data, nil } type VersionsByPrefixStreamImpl struct { ctx context.Context rootID uint64 intermediateRootID uint64 service ServiceClient bktInfo *data.BucketInfo mainStream SubTreeStream innerStream SubTreeStream headPrefix string tailPrefix string namesMap map[uint64]string ended bool latestOnly bool currentLatest *data.NodeVersion } // Next todo remove recursion func (s *VersionsByPrefixStreamImpl) Next(ctx context.Context) (*data.NodeVersion, error) { if s.ended { return nil, io.EOF } if s.innerStream == nil { node, err := s.mainStream.Next() if err != nil { if errors.Is(err, ErrNodeNotFound) { return nil, io.EOF } if errors.Is(err, io.EOF) { s.ended = true if s.latestOnly && s.currentLatest != nil { return s.currentLatest, nil } } return nil, fmt.Errorf("main stream next: %w", err) } if node.GetNodeID() == s.rootID || !strings.HasPrefix(getFilename(node), s.tailPrefix) { return s.Next(ctx) } if node.GetParentID() == s.rootID { s.intermediateRootID = node.GetNodeID() } if isIntermediate(node) { s.innerStream, err = s.service.GetSubTreeStream(s.ctx, s.bktInfo, versionTree, node.GetNodeID(), maxGetSubTreeDepth) if err != nil { return nil, fmt.Errorf("get sub tree node from main stream: %w", err) } } else { s.innerStream = &DummySubTreeStream{data: node} } } node, err := s.innerStream.Next() if err != nil { if errors.Is(err, io.EOF) { s.innerStream = nil s.namesMap = map[uint64]string{} if s.latestOnly && s.currentLatest != nil && s.currentLatest.ID != s.intermediateRootID { return s.currentLatest, nil } return s.Next(ctx) } return nil, fmt.Errorf("inner stream: %w", err) } treeNode, fileName, err := parseTreeNode(node) if err != nil { return s.Next(ctx) } var parentPrefix string if s.headPrefix != "" { // The root of subTree can also have a parent parentPrefix = strings.TrimSuffix(s.headPrefix, separator) + separator // To avoid 'foo//bar' } var filepath string if treeNode.ID != s.intermediateRootID { if filepath, err = formFilePath(node, fileName, s.namesMap); err != nil { return nil, fmt.Errorf("invalid node order: %w", err) } } else { filepath = parentPrefix + fileName s.namesMap[treeNode.ID] = filepath } if treeNode.ObjID.Equals(oid.ID{}) { // The node can be intermediate, but we still want to update namesMap return s.Next(ctx) } nodeVersion := newNodeVersionFromTreeNode(filepath, treeNode) if s.latestOnly { if s.currentLatest == nil { s.currentLatest = nodeVersion return s.Next(ctx) } if s.currentLatest.FilePath != nodeVersion.FilePath { res := s.currentLatest s.currentLatest = nodeVersion return res, nil } if s.currentLatest.Timestamp < nodeVersion.Timestamp { s.currentLatest = nodeVersion } return s.Next(ctx) } return nodeVersion, nil } func (c *Tree) InitVersionsByPrefixStream(ctx context.Context, bktInfo *data.BucketInfo, prefix string, latestOnly bool) (data.VersionsStream, error) { mainStream, tailPrefix, rootID, err := c.getSubTreeByPrefixMainStream(ctx, bktInfo, versionTree, prefix) if err != nil { if errors.Is(err, io.EOF) { return &VersionsByPrefixStreamImpl{ended: true}, nil } return nil, err } return &VersionsByPrefixStreamImpl{ ctx: ctx, namesMap: map[uint64]string{}, rootID: rootID, service: c.service, bktInfo: bktInfo, mainStream: mainStream, headPrefix: strings.TrimSuffix(prefix, tailPrefix), tailPrefix: tailPrefix, latestOnly: latestOnly, }, nil } func (c *Tree) getSubTreeByPrefixMainStream(ctx context.Context, bktInfo *data.BucketInfo, treeID, prefix string) (SubTreeStream, string, uint64, error) { rootID, tailPrefix, err := c.determinePrefixNode(ctx, bktInfo, treeID, prefix) if err != nil { if errors.Is(err, layer.ErrNodeNotFound) { return nil, "", 0, io.EOF } return nil, "", 0, err } subTree, err := c.service.GetSubTreeStream(ctx, bktInfo, treeID, rootID, 2) if err != nil { if errors.Is(err, layer.ErrNodeNotFound) { return nil, "", 0, io.EOF } return nil, "", 0, err } return subTree, tailPrefix, rootID, nil } func (c *Tree) determinePrefixNode(ctx context.Context, bktInfo *data.BucketInfo, treeID, prefix string) (uint64, string, error) { var rootID uint64 path := strings.Split(prefix, separator) tailPrefix := path[len(path)-1] if len(path) > 1 { var err error rootID, err = c.getPrefixNodeID(ctx, bktInfo, treeID, path[:len(path)-1]) if err != nil { return 0, "", err } } return rootID, tailPrefix, nil } func (c *Tree) getPrefixNodeID(ctx context.Context, bktInfo *data.BucketInfo, treeID string, prefixPath []string) (uint64, error) { p := &GetNodesParams{ BktInfo: bktInfo, TreeID: treeID, Path: prefixPath, LatestOnly: false, AllAttrs: true, } nodes, err := c.service.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 *Tree) getSubTreeByPrefix(ctx context.Context, bktInfo *data.BucketInfo, treeID, prefix string, latestOnly bool) ([]NodeResponse, string, error) { rootID, tailPrefix, err := c.determinePrefixNode(ctx, bktInfo, treeID, prefix) if err != nil { if errors.Is(err, layer.ErrNodeNotFound) { return nil, "", nil } return nil, "", err } subTree, err := c.service.GetSubTree(ctx, bktInfo, treeID, rootID, 2) if err != nil { if errors.Is(err, layer.ErrNodeNotFound) { return nil, "", nil } return nil, "", err } nodesMap := make(map[string][]NodeResponse, len(subTree)) for _, node := range subTree { if node.GetNodeID() == rootID { continue } fileName := getFilename(node) if !strings.HasPrefix(fileName, tailPrefix) { continue } nodes := nodesMap[fileName] // Add all nodes if flag latestOnly is false. // Add all intermediate nodes (actually should be exactly one intermediate node with the same name) // and only latest leaf (object) nodes. To do this store and replace last leaf (object) node in nodes[0] if len(nodes) == 0 { nodes = []NodeResponse{node} } else if !latestOnly || isIntermediate(node) { nodes = append(nodes, node) } else if isIntermediate(nodes[0]) { nodes = append([]NodeResponse{node}, nodes...) } else if node.GetTimestamp() > nodes[0].GetTimestamp() { nodes[0] = node } nodesMap[fileName] = nodes } result := make([]NodeResponse, 0, len(subTree)) for _, nodes := range nodesMap { result = append(result, nodes...) } return result, strings.TrimSuffix(prefix, tailPrefix), nil } func getFilename(node NodeResponse) string { for _, kv := range node.GetMeta() { if kv.GetKey() == FileNameKey { return string(kv.GetValue()) } } return "" } func isIntermediate(node NodeResponse) bool { if len(node.GetMeta()) != 1 { return false } return node.GetMeta()[0].GetKey() == FileNameKey } func formFilePath(node NodeResponse, 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 NodeResponse) (*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 *Tree) GetUnversioned(ctx context.Context, bktInfo *data.BucketInfo, filepath string) (*data.NodeVersion, error) { return c.getUnversioned(ctx, bktInfo, versionTree, filepath) } func (c *Tree) getUnversioned(ctx context.Context, bktInfo *data.BucketInfo, treeID, filepath string) (*data.NodeVersion, error) { nodes, err := c.getVersions(ctx, bktInfo, treeID, filepath, true) if err != nil { return nil, err } if len(nodes) == 0 { return nil, layer.ErrNodeNotFound } if len(nodes) > 1 { c.reqLogger(ctx).Debug(logs.FoundMoreThanOneUnversionedNode, zap.String("treeID", treeID), zap.String("filepath", filepath)) } sort.Slice(nodes, func(i, j int) bool { return nodes[i].Timestamp > nodes[j].Timestamp }) return nodes[0], nil } func (c *Tree) AddVersion(ctx context.Context, bktInfo *data.BucketInfo, version *data.NodeVersion) (uint64, error) { return c.addVersion(ctx, bktInfo, versionTree, version) } func (c *Tree) RemoveVersion(ctx context.Context, bktInfo *data.BucketInfo, id uint64) error { return c.service.RemoveNode(ctx, bktInfo, versionTree, id) } func (c *Tree) CreateMultipartUpload(ctx context.Context, bktInfo *data.BucketInfo, info *data.MultipartInfo) error { path := pathFromName(info.Key) meta := metaFromMultipart(info, path[len(path)-1]) _, err := c.service.AddNodeByPath(ctx, bktInfo, systemTree, path[:len(path)-1], meta) return err } func (c *Tree) GetMultipartUploadsByPrefix(ctx context.Context, bktInfo *data.BucketInfo, prefix string) ([]*data.MultipartInfo, error) { subTreeNodes, headPrefix, err := c.getSubTreeByPrefix(ctx, bktInfo, systemTree, prefix, false) if err != nil { return nil, err } var result []*data.MultipartInfo for _, node := range subTreeNodes { multipartUploads, err := c.getSubTreeMultipartUploads(ctx, bktInfo, node.GetNodeID(), headPrefix) if err != nil { return nil, err } result = append(result, multipartUploads...) } return result, nil } func (c *Tree) getSubTreeMultipartUploads(ctx context.Context, bktInfo *data.BucketInfo, nodeID uint64, parentFilePath string) ([]*data.MultipartInfo, error) { subTree, err := c.service.GetSubTree(ctx, bktInfo, systemTree, 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 filepath string namesMap := make(map[uint64]string, len(subTree)) multiparts := make(map[string][]*data.MultipartInfo, 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 } multipartInfo, err := newMultipartInfoFromTreeNode(filepath, treeNode) if err != nil || multipartInfo.Finished { continue } key := formLatestNodeKey(node.GetParentID(), fileName) multipartInfos, ok := multiparts[key] if !ok { multipartInfos = []*data.MultipartInfo{multipartInfo} } else { multipartInfos = append(multipartInfos, multipartInfo) } multiparts[key] = multipartInfos } result := make([]*data.MultipartInfo, 0, len(multiparts)) for _, multipartInfo := range multiparts { result = append(result, multipartInfo...) } return result, nil } func (c *Tree) GetMultipartUpload(ctx context.Context, bktInfo *data.BucketInfo, objectName, uploadID string) (*data.MultipartInfo, error) { path := pathFromName(objectName) p := &GetNodesParams{ BktInfo: bktInfo, TreeID: systemTree, Path: path, AllAttrs: true, } nodes, err := c.service.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 { if info.Finished { break } return info, nil } } return nil, layer.ErrNodeNotFound } func (c *Tree) AddPart(ctx context.Context, bktInfo *data.BucketInfo, multipartNodeID uint64, info *data.PartInfo) (oldObjIDToDelete oid.ID, err error) { parts, err := c.service.GetSubTree(ctx, bktInfo, systemTree, multipartNodeID, 2) if err != nil { return oid.ID{}, err } meta := map[string]string{ partNumberKV: strconv.Itoa(info.Number), oidKV: info.OID.EncodeToString(), sizeKV: strconv.FormatUint(info.Size, 10), createdKV: strconv.FormatInt(info.Created.UTC().UnixMilli(), 10), etagKV: info.ETag, md5KV: info.MD5, } for _, part := range parts { if part.GetNodeID() == multipartNodeID { continue } partInfo, err := newPartInfo(part) if err != nil { continue } if partInfo.Number == info.Number { return partInfo.OID, c.service.MoveNode(ctx, bktInfo, systemTree, part.GetNodeID(), multipartNodeID, meta) } } if _, err = c.service.AddNode(ctx, bktInfo, systemTree, multipartNodeID, meta); err != nil { return oid.ID{}, err } return oid.ID{}, layer.ErrNoNodeToRemove } func (c *Tree) GetParts(ctx context.Context, bktInfo *data.BucketInfo, multipartNodeID uint64) ([]*data.PartInfo, error) { parts, err := c.service.GetSubTree(ctx, bktInfo, systemTree, multipartNodeID, 2) 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 *Tree) DeleteMultipartUpload(ctx context.Context, bktInfo *data.BucketInfo, multipartInfo *data.MultipartInfo) error { err := c.service.RemoveNode(ctx, bktInfo, systemTree, multipartInfo.ID) if err != nil { return err } multipartInfo.Finished = true return c.CreateMultipartUpload(ctx, bktInfo, multipartInfo) } func (c *Tree) PutLock(ctx context.Context, bktInfo *data.BucketInfo, 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.service.AddNode(ctx, bktInfo, versionTree, nodeID, meta) return err } return c.service.MoveNode(ctx, bktInfo, versionTree, lock.ID(), nodeID, meta) } func (c *Tree) GetLock(ctx context.Context, bktInfo *data.BucketInfo, nodeID uint64) (*data.LockInfo, error) { lockNode, err := c.getTreeNode(ctx, bktInfo, 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 *Tree) GetObjectTaggingAndLock(ctx context.Context, bktInfo *data.BucketInfo, objVersion *data.NodeVersion) (map[string]string, *data.LockInfo, error) { nodes, err := c.getTreeNodes(ctx, bktInfo, 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 *Tree) addVersion(ctx context.Context, bktInfo *data.BucketInfo, treeID string, version *data.NodeVersion) (uint64, error) { path := pathFromName(version.FilePath) meta := map[string]string{ oidKV: version.OID.EncodeToString(), FileNameKey: path[len(path)-1], ownerKV: version.Owner.EncodeToString(), createdKV: strconv.FormatInt(version.Created.UTC().UnixMilli(), 10), } if version.Size > 0 { meta[sizeKV] = strconv.FormatUint(version.Size, 10) } if len(version.ETag) > 0 { meta[etagKV] = version.ETag } if len(version.MD5) > 0 { meta[md5KV] = version.MD5 } if version.IsDeleteMarker { meta[isDeleteMarkerKV] = "true" } if version.IsCombined { meta[isCombinedKV] = "true" } if version.IsUnversioned { meta[isUnversionedKV] = "true" node, err := c.getUnversioned(ctx, bktInfo, treeID, version.FilePath) if err == nil { if err = c.service.MoveNode(ctx, bktInfo, treeID, node.ID, node.ParenID, meta); err != nil { return 0, err } return node.ID, c.clearOutdatedVersionInfo(ctx, bktInfo, treeID, node.ID) } if !errors.Is(err, layer.ErrNodeNotFound) { return 0, err } } return c.service.AddNodeByPath(ctx, bktInfo, treeID, path[:len(path)-1], meta) } func (c *Tree) clearOutdatedVersionInfo(ctx context.Context, bktInfo *data.BucketInfo, treeID string, nodeID uint64) error { taggingNode, err := c.getTreeNode(ctx, bktInfo, nodeID, isTagKV) if err != nil { return err } if taggingNode != nil { return c.service.RemoveNode(ctx, bktInfo, treeID, taggingNode.ID) } return nil } func (c *Tree) getVersions(ctx context.Context, bktInfo *data.BucketInfo, treeID, filepath string, onlyUnversioned bool) ([]*data.NodeVersion, error) { keysToReturn := []string{oidKV, isUnversionedKV, isDeleteMarkerKV, etagKV, sizeKV, md5KV} path := pathFromName(filepath) p := &GetNodesParams{ BktInfo: bktInfo, TreeID: treeID, Path: path, Meta: keysToReturn, LatestOnly: false, AllAttrs: false, } nodes, err := c.service.GetNodes(ctx, p) if err != nil { if errors.Is(err, layer.ErrNodeNotFound) { return nil, nil } return nil, 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 metaFromSettings(settings *data.BucketSettings) map[string]string { results := make(map[string]string, 3) results[FileNameKey] = settingsFileName results[versioningKV] = settings.Versioning results[lockConfigurationKV] = encodeLockConfiguration(settings.LockConfiguration) return results } func metaFromMultipart(info *data.MultipartInfo, fileName string) map[string]string { info.Meta[FileNameKey] = fileName info.Meta[uploadIDKV] = info.UploadID info.Meta[ownerKV] = info.Owner.EncodeToString() info.Meta[createdKV] = strconv.FormatInt(info.Created.UTC().UnixMilli(), 10) if info.Finished { info.Meta[finishedKV] = strconv.FormatBool(info.Finished) } return info.Meta } func (c *Tree) getSystemNode(ctx context.Context, bktInfo *data.BucketInfo, path, meta []string) (*treeNode, error) { return c.getNode(ctx, bktInfo, systemTree, path, meta, false) } func (c *Tree) getSystemNodeWithAllAttributes(ctx context.Context, bktInfo *data.BucketInfo, path []string) (*treeNode, error) { return c.getNode(ctx, bktInfo, systemTree, path, []string{}, true) } func (c *Tree) getNode(ctx context.Context, bktInfo *data.BucketInfo, treeID string, path, meta []string, allAttrs bool) (*treeNode, error) { p := &GetNodesParams{ BktInfo: bktInfo, TreeID: treeID, Path: path, Meta: meta, LatestOnly: false, AllAttrs: allAttrs, } nodes, err := c.service.GetNodes(ctx, p) if err != nil { return nil, 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 *Tree) reqLogger(ctx context.Context) *zap.Logger { reqLogger := middleware.GetReqLog(ctx) if reqLogger != nil { return reqLogger } return c.log } 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) }