package object import ( "crypto/ecdsa" "errors" "fmt" "os" "strings" internal "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/client" "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/common" "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags" sessionCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/session" "github.com/nspcc-dev/neofs-sdk-go/bearer" "github.com/nspcc-dev/neofs-sdk-go/client" cid "github.com/nspcc-dev/neofs-sdk-go/container/id" neofsecdsa "github.com/nspcc-dev/neofs-sdk-go/crypto/ecdsa" "github.com/nspcc-dev/neofs-sdk-go/object" oid "github.com/nspcc-dev/neofs-sdk-go/object/id" "github.com/nspcc-dev/neofs-sdk-go/session" "github.com/spf13/cobra" "github.com/spf13/viper" ) const ( bearerTokenFlag = "bearer" rawFlag = "raw" rawFlagDesc = "Set raw request option" fileFlag = "file" binaryFlag = "binary" ) type RPCParameters interface { SetBearerToken(prm *bearer.Token) SetTTL(uint32) SetXHeaders([]string) } // InitBearer adds bearer token flag to a command. func InitBearer(cmd *cobra.Command) { flags := cmd.Flags() flags.String(bearerTokenFlag, "", "File with signed JSON or binary encoded bearer token") } // Prepare prepares object-related parameters for a command. func Prepare(cmd *cobra.Command, prms ...RPCParameters) { ttl := viper.GetUint32(commonflags.TTL) common.PrintVerbose("TTL: %d", ttl) for i := range prms { btok := common.ReadBearerToken(cmd, bearerTokenFlag) prms[i].SetBearerToken(btok) prms[i].SetTTL(ttl) prms[i].SetXHeaders(parseXHeaders(cmd)) } } func parseXHeaders(cmd *cobra.Command) []string { xHeaders, _ := cmd.Flags().GetStringSlice(commonflags.XHeadersKey) xs := make([]string, 0, 2*len(xHeaders)) for i := range xHeaders { kv := strings.SplitN(xHeaders[i], "=", 2) if len(kv) != 2 { panic(fmt.Errorf("invalid X-Header format: %s", xHeaders[i])) } xs = append(xs, kv[0], kv[1]) } return xs } func readObjectAddress(cmd *cobra.Command, cnr *cid.ID, obj *oid.ID) oid.Address { readCID(cmd, cnr) readOID(cmd, obj) var addr oid.Address addr.SetContainer(*cnr) addr.SetObject(*obj) return addr } func readObjectAddressBin(cmd *cobra.Command, cnr *cid.ID, obj *oid.ID, filename string) oid.Address { buf, err := os.ReadFile(filename) common.ExitOnErr(cmd, "unable to read given file: %w", err) objTemp := object.New() common.ExitOnErr(cmd, "can't unmarshal object from given file: %w", objTemp.Unmarshal(buf)) var addr oid.Address *cnr, _ = objTemp.ContainerID() *obj, _ = objTemp.ID() addr.SetContainer(*cnr) addr.SetObject(*obj) return addr } func readCID(cmd *cobra.Command, id *cid.ID) { err := id.DecodeString(cmd.Flag(commonflags.CIDFlag).Value.String()) common.ExitOnErr(cmd, "decode container ID string: %w", err) } func readOID(cmd *cobra.Command, id *oid.ID) { err := id.DecodeString(cmd.Flag(commonflags.OIDFlag).Value.String()) common.ExitOnErr(cmd, "decode object ID string: %w", err) } // SessionPrm is a common interface of object operation's input which supports // sessions. type SessionPrm interface { SetSessionToken(*session.Object) SetClient(*client.Client) } // forwards all parameters to _readVerifiedSession and object as nil. func readSessionGlobal(cmd *cobra.Command, dst SessionPrm, key *ecdsa.PrivateKey, cnr cid.ID) { _readVerifiedSession(cmd, dst, key, cnr, nil) } // forwards all parameters to _readVerifiedSession. func readSession(cmd *cobra.Command, dst SessionPrm, key *ecdsa.PrivateKey, cnr cid.ID, obj oid.ID) { _readVerifiedSession(cmd, dst, key, cnr, &obj) } // decodes session.Object from the file by path specified in the // commonflags.SessionToken flag. Returns nil if flag is not set. func getSession(cmd *cobra.Command) *session.Object { common.PrintVerbose("Trying to read session from the file...") path, _ := cmd.Flags().GetString(commonflags.SessionToken) if path == "" { common.PrintVerbose("File with session token is not provided.") return nil } common.PrintVerbose("Reading session from the file [%s]...", path) var tok session.Object err := common.ReadBinaryOrJSON(&tok, path) common.ExitOnErr(cmd, "read session: %v", err) return &tok } // decodes object session from JSON file from commonflags.SessionToken command // flag if it is provided, and writes resulting session into the provided SessionPrm. // Returns flag presence. Checks: // // - if session verb corresponds to given SessionPrm according to its type // - relation to the given container // - relation to the given object if non-nil // - relation to the given private key used within the command // - session signature // // SessionPrm MUST be one of: // // *internal.GetObjectPrm // *internal.HeadObjectPrm // *internal.SearchObjectsPrm // *internal.PayloadRangePrm // *internal.HashPayloadRangesPrm func _readVerifiedSession(cmd *cobra.Command, dst SessionPrm, key *ecdsa.PrivateKey, cnr cid.ID, obj *oid.ID) { var cmdVerb session.ObjectVerb switch dst.(type) { default: panic(fmt.Sprintf("unsupported op parameters %T", dst)) case *internal.GetObjectPrm: cmdVerb = session.VerbObjectGet case *internal.HeadObjectPrm: cmdVerb = session.VerbObjectHead case *internal.SearchObjectsPrm: cmdVerb = session.VerbObjectSearch case *internal.PayloadRangePrm: cmdVerb = session.VerbObjectRange case *internal.HashPayloadRangesPrm: cmdVerb = session.VerbObjectRangeHash } tok := getSession(cmd) if tok == nil { return } common.PrintVerbose("Checking session correctness...") switch false { case tok.AssertContainer(cnr): common.ExitOnErr(cmd, "", errors.New("unrelated container in the session")) case obj == nil || tok.AssertObject(*obj): common.ExitOnErr(cmd, "", errors.New("unrelated object in the session")) case tok.AssertVerb(cmdVerb): common.ExitOnErr(cmd, "", errors.New("wrong verb of the session")) case tok.AssertAuthKey((*neofsecdsa.PublicKey)(&key.PublicKey)): common.ExitOnErr(cmd, "", errors.New("unrelated key in the session")) case tok.VerifySignature(): common.ExitOnErr(cmd, "", errors.New("invalid signature of the session data")) } common.PrintVerbose("Session is correct.") dst.SetSessionToken(tok) } // ReadOrOpenSession opens client connection and calls ReadOrOpenSessionViaClient with it. func ReadOrOpenSession(cmd *cobra.Command, dst SessionPrm, key *ecdsa.PrivateKey, cnr cid.ID, obj *oid.ID) { cli := internal.GetSDKClientByFlag(cmd, key, commonflags.RPC) ReadOrOpenSessionViaClient(cmd, dst, cli, key, cnr, obj) } // ReadOrOpenSessionViaClient tries to read session from the file specified in // commonflags.SessionToken flag, finalizes structures of the decoded token // and write the result into provided SessionPrm. If file is missing, // ReadOrOpenSessionViaClient calls OpenSessionViaClient. func ReadOrOpenSessionViaClient(cmd *cobra.Command, dst SessionPrm, cli *client.Client, key *ecdsa.PrivateKey, cnr cid.ID, obj *oid.ID) { tok := getSession(cmd) if tok == nil { OpenSessionViaClient(cmd, dst, cli, key, cnr, obj) return } var objs []oid.ID if obj != nil { objs = []oid.ID{*obj} if _, ok := dst.(*internal.DeleteObjectPrm); ok { common.PrintVerbose("Collecting relatives of the removal object...") objs = append(objs, collectObjectRelatives(cmd, cli, cnr, *obj)...) } } finalizeSession(cmd, dst, tok, key, cnr, objs...) dst.SetClient(cli) } // OpenSession opens client connection and calls OpenSessionViaClient with it. func OpenSession(cmd *cobra.Command, dst SessionPrm, key *ecdsa.PrivateKey, cnr cid.ID, obj *oid.ID) { cli := internal.GetSDKClientByFlag(cmd, key, commonflags.RPC) OpenSessionViaClient(cmd, dst, cli, key, cnr, obj) } // OpenSessionViaClient opens object session with the remote node, finalizes // structure of the session token and writes the result into the provided // SessionPrm. Also writes provided client connection to the SessionPrm. // // SessionPrm MUST be one of: // // *internal.PutObjectPrm // *internal.DeleteObjectPrm // // If provided SessionPrm is of type internal.DeleteObjectPrm, OpenSessionViaClient // spreads the session to all object's relatives. func OpenSessionViaClient(cmd *cobra.Command, dst SessionPrm, cli *client.Client, key *ecdsa.PrivateKey, cnr cid.ID, obj *oid.ID) { var objs []oid.ID if obj != nil { if _, ok := dst.(*internal.DeleteObjectPrm); ok { common.PrintVerbose("Collecting relatives of the removal object...") rels := collectObjectRelatives(cmd, cli, cnr, *obj) if len(rels) == 0 { objs = []oid.ID{*obj} } else { objs = append(rels, *obj) } } } var tok session.Object const sessionLifetime = 10 // in NeoFS epochs common.PrintVerbose("Opening remote session with the node...") err := sessionCli.CreateSession(&tok, cli, sessionLifetime) common.ExitOnErr(cmd, "open remote session: %w", err) common.PrintVerbose("Session successfully opened.") finalizeSession(cmd, dst, &tok, key, cnr, objs...) dst.SetClient(cli) } // specifies session verb, binds the session to the given container and limits // the session by the given objects (if specified). After all data is written, // signs session using provided private key and writes the session into the // given SessionPrm. // // SessionPrm MUST be one of: // // *internal.PutObjectPrm // *internal.DeleteObjectPrm func finalizeSession(cmd *cobra.Command, dst SessionPrm, tok *session.Object, key *ecdsa.PrivateKey, cnr cid.ID, objs ...oid.ID) { common.PrintVerbose("Finalizing session token...") switch dst.(type) { default: panic(fmt.Sprintf("unsupported op parameters %T", dst)) case *internal.PutObjectPrm: common.PrintVerbose("Binding session to object PUT...") tok.ForVerb(session.VerbObjectPut) case *internal.DeleteObjectPrm: common.PrintVerbose("Binding session to object DELETE...") tok.ForVerb(session.VerbObjectDelete) } common.PrintVerbose("Binding session to container %s...", cnr) tok.BindContainer(cnr) if len(objs) > 0 { common.PrintVerbose("Limiting session by the objects %v...", objs) tok.LimitByObjects(objs...) } common.PrintVerbose("Signing session...") err := tok.Sign(*key) common.ExitOnErr(cmd, "sign session: %w", err) common.PrintVerbose("Session token successfully formed and attached to the request.") dst.SetSessionToken(tok) } // calls commonflags.InitSession with "object " name. func initFlagSession(cmd *cobra.Command, verb string) { commonflags.InitSession(cmd, "object "+verb) } // collects and returns all relatives of the given object stored in the specified // container. Empty result without an error means lack of relationship in the // container. // // The object itself is not included in the result. func collectObjectRelatives(cmd *cobra.Command, cli *client.Client, cnr cid.ID, obj oid.ID) []oid.ID { common.PrintVerbose("Fetching raw object header...") // request raw header first var addrObj oid.Address addrObj.SetContainer(cnr) addrObj.SetObject(obj) var prmHead internal.HeadObjectPrm prmHead.SetClient(cli) prmHead.SetAddress(addrObj) prmHead.SetRawFlag(true) Prepare(cmd, &prmHead) _, err := internal.HeadObject(prmHead) var errSplit *object.SplitInfoError switch { default: common.ExitOnErr(cmd, "failed to get raw object header: %w", err) case err == nil: common.PrintVerbose("Raw header received - object is singular.") return nil case errors.As(err, &errSplit): common.PrintVerbose("Split information received - object is virtual.") } splitInfo := errSplit.SplitInfo() // collect split chain by the descending ease of operations (ease is evaluated heuristically). // If any approach fails, we don't try the next since we assume that it will fail too. if idLinking, ok := splitInfo.Link(); ok { common.PrintVerbose("Collecting split members using linking object %s...", idLinking) addrObj.SetObject(idLinking) prmHead.SetAddress(addrObj) prmHead.SetRawFlag(false) // client is already set res, err := internal.HeadObject(prmHead) common.ExitOnErr(cmd, "failed to get linking object's header: %w", err) children := res.Header().Children() common.PrintVerbose("Received split members from the linking object: %v", children) // include linking object return append(children, idLinking) } if idSplit := splitInfo.SplitID(); idSplit != nil { common.PrintVerbose("Collecting split members by split ID...") var query object.SearchFilters query.AddSplitIDFilter(object.MatchStringEqual, idSplit) var prm internal.SearchObjectsPrm prm.SetContainerID(cnr) prm.SetClient(cli) prm.SetFilters(query) res, err := internal.SearchObjects(prm) common.ExitOnErr(cmd, "failed to search objects by split ID: %w", err) members := res.IDList() common.PrintVerbose("Found objects by split ID: %v", res.IDList()) return members } idMember, ok := splitInfo.LastPart() if !ok { common.ExitOnErr(cmd, "", errors.New("missing any data in received object split information")) } common.PrintVerbose("Traverse the object split chain in reverse...", idMember) var res *internal.HeadObjectRes chain := []oid.ID{idMember} chainSet := map[oid.ID]struct{}{idMember: {}} prmHead.SetRawFlag(false) // split members are almost definitely singular, but don't get hung up on it for { common.PrintVerbose("Reading previous element of the split chain member %s...", idMember) addrObj.SetObject(idMember) res, err = internal.HeadObject(prmHead) common.ExitOnErr(cmd, "failed to read split chain member's header: %w", err) idMember, ok = res.Header().PreviousID() if !ok { common.PrintVerbose("Chain ended.") break } if _, ok = chainSet[idMember]; ok { common.ExitOnErr(cmd, "", fmt.Errorf("duplicated member in the split chain %s", idMember)) } chain = append(chain, idMember) chainSet[idMember] = struct{}{} } common.PrintVerbose("Looking for a linking object...") var query object.SearchFilters query.AddParentIDFilter(object.MatchStringEqual, obj) var prmSearch internal.SearchObjectsPrm prmSearch.SetClient(cli) prmSearch.SetContainerID(cnr) prmSearch.SetFilters(query) resSearch, err := internal.SearchObjects(prmSearch) common.ExitOnErr(cmd, "failed to find object children: %w", err) list := resSearch.IDList() for i := range list { if _, ok = chainSet[list[i]]; !ok { common.PrintVerbose("Found one more related object %s.", list[i]) chain = append(chain, list[i]) } } return chain }