frostfs-node/cmd/neofs-cli/modules/object.go

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package cmd
import (
"context"
"crypto/ecdsa"
"encoding/hex"
"errors"
"fmt"
"io"
"math"
"os"
"path/filepath"
"strconv"
"strings"
"time"
"github.com/nspcc-dev/neofs-api-go/pkg/client"
cid "github.com/nspcc-dev/neofs-api-go/pkg/container/id"
"github.com/nspcc-dev/neofs-api-go/pkg/object"
"github.com/nspcc-dev/neofs-api-go/pkg/owner"
"github.com/nspcc-dev/neofs-api-go/pkg/session"
"github.com/nspcc-dev/neofs-api-go/pkg/token"
objectV2 "github.com/nspcc-dev/neofs-api-go/v2/object"
"github.com/spf13/cobra"
)
const (
getRangeCmdUse = "range"
getRangeCmdShortDesc = "Get payload range data of an object"
getRangeCmdLongDesc = "Get payload range data of an object"
)
const (
getRangeHashSaltFlag = "salt"
)
var (
// objectCmd represents the object command
objectCmd = &cobra.Command{
Use: "object",
Short: "Operations with Objects",
Long: `Operations with Objects`,
PersistentPreRun: func(cmd *cobra.Command, args []string) {
// bind exactly that cmd's flags to
// the viper before execution
bindCommonFlags(cmd)
},
}
objectPutCmd = &cobra.Command{
Use: "put",
Short: "Put object to NeoFS",
Long: "Put object to NeoFS",
Run: putObject,
}
objectGetCmd = &cobra.Command{
Use: "get",
Short: "Get object from NeoFS",
Long: "Get object from NeoFS",
Run: getObject,
}
objectDelCmd = &cobra.Command{
Use: "delete",
Aliases: []string{"del"},
Short: "Delete object from NeoFS",
Long: "Delete object from NeoFS",
Run: deleteObject,
}
searchFilters []string
objectSearchCmd = &cobra.Command{
Use: "search",
Short: "Search object",
Long: "Search object",
Run: searchObject,
}
objectHeadCmd = &cobra.Command{
Use: "head",
Short: "Get object header",
Long: "Get object header",
Run: getObjectHeader,
}
objectHashCmd = &cobra.Command{
Use: "hash",
Short: "Get object hash",
Long: "Get object hash",
Run: getObjectHash,
}
objectRangeCmd = &cobra.Command{
Use: getRangeCmdUse,
Short: getRangeCmdShortDesc,
Long: getRangeCmdLongDesc,
Run: getObjectRange,
}
)
const (
hashSha256 = "sha256"
hashTz = "tz"
rangeSep = ":"
)
const searchOIDFlag = "oid"
const (
rawFlag = "raw"
rawFlagDesc = "Set raw request option"
)
const putExpiresOnFlag = "expires-on"
var putExpiredOn uint64
func initObjectPutCmd() {
initCommonFlags(objectPutCmd)
flags := objectPutCmd.Flags()
flags.String("file", "", "File with object payload")
_ = objectPutCmd.MarkFlagFilename("file")
_ = objectPutCmd.MarkFlagRequired("file")
flags.String("cid", "", "Container ID")
_ = objectPutCmd.MarkFlagRequired("cid")
flags.String("attributes", "", "User attributes in form of Key1=Value1,Key2=Value2")
flags.Bool("disable-filename", false, "Do not set well-known filename attribute")
flags.Bool("disable-timestamp", false, "Do not set well-known timestamp attribute")
flags.Uint64VarP(&putExpiredOn, putExpiresOnFlag, "e", 0, "Last epoch in the life of the object")
}
func initObjectDeleteCmd() {
initCommonFlags(objectDelCmd)
flags := objectDelCmd.Flags()
flags.String("cid", "", "Container ID")
_ = objectDelCmd.MarkFlagRequired("cid")
flags.String("oid", "", "Object ID")
_ = objectDelCmd.MarkFlagRequired("oid")
}
func initObjectGetCmd() {
initCommonFlags(objectGetCmd)
flags := objectGetCmd.Flags()
flags.String("cid", "", "Container ID")
_ = objectGetCmd.MarkFlagRequired("cid")
flags.String("oid", "", "Object ID")
_ = objectGetCmd.MarkFlagRequired("oid")
flags.String("file", "", "File to write object payload to. Default: stdout.")
flags.String("header", "", "File to write header to. Default: stdout.")
flags.Bool(rawFlag, false, rawFlagDesc)
}
func initObjectSearchCmd() {
initCommonFlags(objectSearchCmd)
flags := objectSearchCmd.Flags()
flags.String("cid", "", "Container ID")
_ = objectSearchCmd.MarkFlagRequired("cid")
flags.StringSliceVarP(&searchFilters, "filters", "f", nil,
"Repeated filter expressions or files with protobuf JSON")
flags.Bool("root", false, "Search for user objects")
flags.Bool("phy", false, "Search physically stored objects")
flags.String(searchOIDFlag, "", "Search object by identifier")
}
func initObjectHeadCmd() {
initCommonFlags(objectHeadCmd)
flags := objectHeadCmd.Flags()
flags.String("cid", "", "Container ID")
_ = objectHeadCmd.MarkFlagRequired("cid")
flags.String("oid", "", "Object ID")
_ = objectHeadCmd.MarkFlagRequired("oid")
flags.String("file", "", "File to write header to. Default: stdout.")
flags.Bool("main-only", false, "Return only main fields")
flags.Bool("json", false, "Marshal output in JSON")
flags.Bool("proto", false, "Marshal output in Protobuf")
flags.Bool(rawFlag, false, rawFlagDesc)
}
func initObjectHashCmd() {
initCommonFlags(objectHashCmd)
flags := objectHashCmd.Flags()
flags.String("cid", "", "Container ID")
_ = objectHashCmd.MarkFlagRequired("cid")
flags.String("oid", "", "Object ID")
_ = objectHashCmd.MarkFlagRequired("oid")
flags.String("range", "", "Range to take hash from in the form offset1:length1,...")
flags.String("type", hashSha256, "Hash type. Either 'sha256' or 'tz'")
flags.String(getRangeHashSaltFlag, "", "Salt in hex format")
}
func initObjectRangeCmd() {
initCommonFlags(objectRangeCmd)
flags := objectRangeCmd.Flags()
flags.String("cid", "", "Container ID")
_ = objectRangeCmd.MarkFlagRequired("cid")
flags.String("oid", "", "Object ID")
_ = objectRangeCmd.MarkFlagRequired("oid")
flags.String("range", "", "Range to take data from in the form offset:length")
flags.String("file", "", "File to write object payload to. Default: stdout.")
flags.Bool(rawFlag, false, rawFlagDesc)
}
func init() {
objectChildCommands := []*cobra.Command{
objectPutCmd,
objectDelCmd,
objectGetCmd,
objectSearchCmd,
objectHeadCmd,
objectHashCmd,
objectRangeCmd,
}
rootCmd.AddCommand(objectCmd)
objectCmd.AddCommand(objectChildCommands...)
for _, objCommand := range objectChildCommands {
flags := objCommand.Flags()
flags.String("bearer", "", "File with signed JSON or binary encoded bearer token")
flags.StringSliceVarP(&xHeaders, xHeadersKey, xHeadersShorthand, xHeadersDefault, xHeadersUsage)
flags.Uint32P(ttl, ttlShorthand, ttlDefault, ttlUsage)
}
// Here you will define your flags and configuration settings.
// Cobra supports Persistent Flags which will work for this command
// and all subcommands, e.g.:
// objectCmd.PersistentFlags().String("foo", "", "A help for foo")
// Cobra supports local flags which will only run when this command
// is called directly, e.g.:
// objectCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
initObjectPutCmd()
initObjectDeleteCmd()
initObjectGetCmd()
initObjectSearchCmd()
initObjectHeadCmd()
initObjectHashCmd()
initObjectRangeCmd()
}
func initSession(ctx context.Context, key *ecdsa.PrivateKey) (client.Client, *session.Token, error) {
cli, err := getSDKClient(key)
if err != nil {
return nil, nil, fmt.Errorf("can't create client: %w", err)
}
tok, err := cli.CreateSession(ctx, math.MaxUint64)
if err != nil {
return nil, nil, fmt.Errorf("can't create session: %w", err)
}
return cli, tok, nil
}
func putObject(cmd *cobra.Command, _ []string) {
key, err := getKey()
exitOnErr(cmd, errf("can't fetch private key: %w", err))
ownerID, err := getOwnerID(key)
exitOnErr(cmd, err)
cid, err := getCID(cmd)
exitOnErr(cmd, err)
filename := cmd.Flag("file").Value.String()
f, err := os.OpenFile(filename, os.O_RDONLY, os.ModePerm)
if err != nil {
exitOnErr(cmd, fmt.Errorf("can't open file '%s': %w", filename, err))
}
attrs, err := parseObjectAttrs(cmd)
exitOnErr(cmd, errf("can't parse object attributes: %w", err))
expiresOn, _ := cmd.Flags().GetUint64(putExpiresOnFlag)
if expiresOn > 0 {
var expAttr *object.Attribute
for _, a := range attrs {
if a.Key() == objectV2.SysAttributeExpEpoch {
expAttr = a
break
}
}
if expAttr == nil {
expAttr = object.NewAttribute()
expAttr.SetKey(objectV2.SysAttributeExpEpoch)
attrs = append(attrs, expAttr)
}
expAttr.SetValue(strconv.FormatUint(expiresOn, 10))
}
obj := object.NewRaw()
obj.SetContainerID(cid)
obj.SetOwnerID(ownerID)
obj.SetAttributes(attrs...)
ctx := context.Background()
cli, tok, err := initSession(ctx, key)
exitOnErr(cmd, err)
btok, err := getBearerToken(cmd, "bearer")
exitOnErr(cmd, err)
oid, err := cli.PutObject(ctx,
new(client.PutObjectParams).
WithObject(obj.Object()).
WithPayloadReader(f),
append(globalCallOptions(),
client.WithSession(tok),
client.WithBearer(btok),
)...,
)
exitOnErr(cmd, errf("rpc error: %w", err))
cmd.Printf("[%s] Object successfully stored\n", filename)
cmd.Printf(" ID: %s\n CID: %s\n", oid, cid)
}
func deleteObject(cmd *cobra.Command, _ []string) {
key, err := getKey()
exitOnErr(cmd, err)
objAddr, err := getObjectAddress(cmd)
exitOnErr(cmd, err)
ctx := context.Background()
cli, tok, err := initSession(ctx, key)
exitOnErr(cmd, err)
btok, err := getBearerToken(cmd, "bearer")
exitOnErr(cmd, err)
tombstoneAddr, err := client.DeleteObject(ctx, cli,
new(client.DeleteObjectParams).WithAddress(objAddr),
append(globalCallOptions(),
client.WithSession(tok),
client.WithBearer(btok),
)...,
)
exitOnErr(cmd, errf("rpc error: %w", err))
cmd.Println("Object removed successfully.")
cmd.Printf(" ID: %s\n CID: %s\n", tombstoneAddr.ObjectID(), tombstoneAddr.ContainerID())
}
func getObject(cmd *cobra.Command, _ []string) {
key, err := getKey()
exitOnErr(cmd, err)
objAddr, err := getObjectAddress(cmd)
exitOnErr(cmd, err)
var out io.Writer
filename := cmd.Flag("file").Value.String()
if filename == "" {
out = os.Stdout
} else {
f, err := os.OpenFile(filename, os.O_CREATE|os.O_WRONLY, os.ModePerm)
if err != nil {
exitOnErr(cmd, fmt.Errorf("can't open file '%s': %w", filename, err))
}
defer f.Close()
out = f
}
ctx := context.Background()
cli, tok, err := initSession(ctx, key)
exitOnErr(cmd, err)
btok, err := getBearerToken(cmd, "bearer")
exitOnErr(cmd, err)
raw, _ := cmd.Flags().GetBool(rawFlag)
obj, err := cli.GetObject(ctx,
new(client.GetObjectParams).
WithAddress(objAddr).
WithPayloadWriter(out).
WithRawFlag(raw),
append(globalCallOptions(),
client.WithSession(tok),
client.WithBearer(btok),
)...,
)
if err != nil {
if ok := printSplitInfoErr(cmd, err); ok {
return
}
exitOnErr(cmd, errf("rpc error: %w", err))
}
if filename != "" {
cmd.Printf("[%s] Object successfully saved\n", filename)
}
// Print header only if file is not streamed to stdout.
hdrFile := cmd.Flag("header").Value.String()
if filename != "" || hdrFile != "" {
err = saveAndPrintHeader(cmd, obj, hdrFile)
exitOnErr(cmd, err)
}
}
func getObjectHeader(cmd *cobra.Command, _ []string) {
key, err := getKey()
exitOnErr(cmd, err)
objAddr, err := getObjectAddress(cmd)
exitOnErr(cmd, err)
ctx := context.Background()
cli, tok, err := initSession(ctx, key)
exitOnErr(cmd, err)
btok, err := getBearerToken(cmd, "bearer")
exitOnErr(cmd, err)
ps := new(client.ObjectHeaderParams).WithAddress(objAddr)
if ok, _ := cmd.Flags().GetBool("main-only"); ok {
ps = ps.WithMainFields()
}
raw, _ := cmd.Flags().GetBool(rawFlag)
ps.WithRawFlag(raw)
obj, err := cli.GetObjectHeader(ctx, ps,
append(globalCallOptions(),
client.WithSession(tok),
client.WithBearer(btok),
)...,
)
if err != nil {
if ok := printSplitInfoErr(cmd, err); ok {
return
}
exitOnErr(cmd, errf("rpc error: %w", err))
}
err = saveAndPrintHeader(cmd, obj, cmd.Flag("file").Value.String())
exitOnErr(cmd, err)
}
func searchObject(cmd *cobra.Command, _ []string) {
key, err := getKey()
exitOnErr(cmd, err)
cid, err := getCID(cmd)
exitOnErr(cmd, err)
sf, err := parseSearchFilters(cmd)
exitOnErr(cmd, err)
ctx := context.Background()
cli, tok, err := initSession(ctx, key)
exitOnErr(cmd, err)
btok, err := getBearerToken(cmd, "bearer")
exitOnErr(cmd, err)
ps := new(client.SearchObjectParams).WithContainerID(cid).WithSearchFilters(sf)
ids, err := cli.SearchObject(ctx, ps,
append(globalCallOptions(),
client.WithSession(tok),
client.WithBearer(btok),
)...,
)
exitOnErr(cmd, errf("rpc error: %w", err))
cmd.Printf("Found %d objects.\n", len(ids))
for _, id := range ids {
cmd.Println(id)
}
}
func getObjectHash(cmd *cobra.Command, _ []string) {
key, err := getKey()
exitOnErr(cmd, errf("can't fetch private key: %w", err))
objAddr, err := getObjectAddress(cmd)
exitOnErr(cmd, err)
ranges, err := getRangeList(cmd)
exitOnErr(cmd, err)
typ, err := getHashType(cmd)
exitOnErr(cmd, err)
strSalt := strings.TrimPrefix(cmd.Flag(getRangeHashSaltFlag).Value.String(), "0x")
salt, err := hex.DecodeString(strSalt)
exitOnErr(cmd, errf("could not decode salt: %w", err))
ctx := context.Background()
cli, tok, err := initSession(ctx, key)
exitOnErr(cmd, err)
btok, err := getBearerToken(cmd, "bearer")
exitOnErr(cmd, err)
if len(ranges) == 0 { // hash of full payload
obj, err := cli.GetObjectHeader(ctx,
new(client.ObjectHeaderParams).WithAddress(objAddr),
append(globalCallOptions(),
client.WithSession(tok),
client.WithBearer(btok),
)...,
)
exitOnErr(cmd, errf("rpc error: %w", err))
switch typ {
case hashSha256:
cmd.Println(hex.EncodeToString(obj.PayloadChecksum().Sum()))
case hashTz:
cmd.Println(hex.EncodeToString(obj.PayloadHomomorphicHash().Sum()))
}
return
}
ps := new(client.RangeChecksumParams).
WithAddress(objAddr).
WithRangeList(ranges...).
WithSalt(salt)
switch typ {
case hashSha256:
res, err := cli.ObjectPayloadRangeSHA256(ctx, ps,
append(globalCallOptions(),
client.WithSession(tok),
client.WithBearer(btok),
)...,
)
exitOnErr(cmd, errf("rpc error: %w", err))
for i := range res {
cmd.Printf("Offset=%d (Length=%d)\t: %s\n", ranges[i].GetOffset(), ranges[i].GetLength(),
hex.EncodeToString(res[i][:]))
}
case hashTz:
res, err := cli.ObjectPayloadRangeTZ(ctx, ps,
append(globalCallOptions(),
client.WithSession(tok),
client.WithBearer(btok),
)...,
)
exitOnErr(cmd, errf("rpc error: %w", err))
for i := range res {
cmd.Printf("Offset=%d (Length=%d)\t: %s\n", ranges[i].GetOffset(), ranges[i].GetLength(),
hex.EncodeToString(res[i][:]))
}
}
}
func getOwnerID(key *ecdsa.PrivateKey) (*owner.ID, error) {
w, err := owner.NEO3WalletFromPublicKey(&key.PublicKey)
if err != nil {
return nil, err
}
ownerID := owner.NewID()
ownerID.SetNeo3Wallet(w)
return ownerID, nil
}
var searchUnaryOpVocabulary = map[string]object.SearchMatchType{
"NOPRESENT": object.MatchNotPresent,
}
var searchBinaryOpVocabulary = map[string]object.SearchMatchType{
"EQ": object.MatchStringEqual,
"NE": object.MatchStringNotEqual,
"COMMON_PREFIX": object.MatchCommonPrefix,
}
func parseSearchFilters(cmd *cobra.Command) (object.SearchFilters, error) {
var fs object.SearchFilters
for i := range searchFilters {
words := strings.Fields(searchFilters[i])
switch len(words) {
default:
return nil, fmt.Errorf("invalid field number: %d", len(words))
case 1:
data, err := os.ReadFile(words[0])
if err != nil {
return nil, fmt.Errorf("could not read attributes filter from file: %w", err)
}
subFs := object.NewSearchFilters()
if err := subFs.UnmarshalJSON(data); err != nil {
return nil, fmt.Errorf("could not unmarshal attributes filter from file: %w", err)
}
fs = append(fs, subFs...)
case 2:
m, ok := searchUnaryOpVocabulary[words[1]]
if !ok {
return nil, fmt.Errorf("unsupported unary op: %s", words[1])
}
fs.AddFilter(words[0], "", m)
case 3:
m, ok := searchBinaryOpVocabulary[words[1]]
if !ok {
return nil, fmt.Errorf("unsupported binary op: %s", words[1])
}
fs.AddFilter(words[0], words[2], m)
}
}
root, _ := cmd.Flags().GetBool("root")
if root {
fs.AddRootFilter()
}
phy, _ := cmd.Flags().GetBool("phy")
if phy {
fs.AddPhyFilter()
}
oid, _ := cmd.Flags().GetString(searchOIDFlag)
if oid != "" {
id := object.NewID()
if err := id.Parse(oid); err != nil {
return nil, fmt.Errorf("could not parse object ID: %w", err)
}
fs.AddObjectIDFilter(object.MatchStringEqual, id)
}
return fs, nil
}
func parseObjectAttrs(cmd *cobra.Command) ([]*object.Attribute, error) {
var rawAttrs []string
raw := cmd.Flag("attributes").Value.String()
if len(raw) != 0 {
rawAttrs = strings.Split(raw, ",")
}
attrs := make([]*object.Attribute, 0, len(rawAttrs)+2) // name + timestamp attributes
for i := range rawAttrs {
kv := strings.SplitN(rawAttrs[i], "=", 2)
if len(kv) != 2 {
return nil, fmt.Errorf("invalid attribute format: %s", rawAttrs[i])
}
attr := object.NewAttribute()
attr.SetKey(kv[0])
attr.SetValue(kv[1])
attrs = append(attrs, attr)
}
disableFilename, _ := cmd.Flags().GetBool("disable-filename")
if !disableFilename {
filename := filepath.Base(cmd.Flag("file").Value.String())
attr := object.NewAttribute()
attr.SetKey(object.AttributeFileName)
attr.SetValue(filename)
attrs = append(attrs, attr)
}
disableTime, _ := cmd.Flags().GetBool("disable-timestamp")
if !disableTime {
attr := object.NewAttribute()
attr.SetKey(object.AttributeTimestamp)
attr.SetValue(strconv.FormatInt(time.Now().Unix(), 10))
attrs = append(attrs, attr)
}
return attrs, nil
}
func getCID(cmd *cobra.Command) (*cid.ID, error) {
id := cid.New()
err := id.Parse(cmd.Flag("cid").Value.String())
if err != nil {
return nil, fmt.Errorf("could not parse container ID: %w", err)
}
return id, nil
}
func getOID(cmd *cobra.Command) (*object.ID, error) {
oid := object.NewID()
err := oid.Parse(cmd.Flag("oid").Value.String())
if err != nil {
return nil, fmt.Errorf("could not parse object ID: %w", err)
}
return oid, nil
}
func getObjectAddress(cmd *cobra.Command) (*object.Address, error) {
cid, err := getCID(cmd)
if err != nil {
return nil, err
}
oid, err := getOID(cmd)
if err != nil {
return nil, err
}
objAddr := object.NewAddress()
objAddr.SetContainerID(cid)
objAddr.SetObjectID(oid)
return objAddr, nil
}
func getRangeList(cmd *cobra.Command) ([]*object.Range, error) {
v := cmd.Flag("range").Value.String()
if len(v) == 0 {
return nil, nil
}
vs := strings.Split(v, ",")
rs := make([]*object.Range, len(vs))
for i := range vs {
r := strings.Split(vs[i], rangeSep)
if len(r) != 2 {
return nil, fmt.Errorf("invalid range specifier: %s", vs[i])
}
offset, err := strconv.ParseUint(r[0], 10, 64)
if err != nil {
return nil, fmt.Errorf("invalid range specifier: %s", vs[i])
}
length, err := strconv.ParseUint(r[1], 10, 64)
if err != nil {
return nil, fmt.Errorf("invalid range specifier: %s", vs[i])
}
rs[i] = object.NewRange()
rs[i].SetOffset(offset)
rs[i].SetLength(length)
}
return rs, nil
}
func getHashType(cmd *cobra.Command) (string, error) {
rawType := cmd.Flag("type").Value.String()
switch typ := strings.ToLower(rawType); typ {
case hashSha256, hashTz:
return typ, nil
default:
return "", fmt.Errorf("invalid hash type: %s", typ)
}
}
func saveAndPrintHeader(cmd *cobra.Command, obj *object.Object, filename string) error {
bs, err := marshalHeader(cmd, obj)
if err != nil {
return fmt.Errorf("could not marshal header: %w", err)
}
if len(bs) != 0 {
if filename == "" {
cmd.Println(string(bs))
return nil
}
err = os.WriteFile(filename, bs, os.ModePerm)
if err != nil {
return fmt.Errorf("could not write header to file: %w", err)
}
cmd.Printf("[%s] Header successfully saved.", filename)
}
return printHeader(cmd, obj)
}
func printHeader(cmd *cobra.Command, obj *object.Object) error {
cmd.Printf("ID: %s\n", obj.ID())
cmd.Printf("CID: %s\n", obj.ContainerID())
cmd.Printf("Owner: %s\n", obj.OwnerID())
cmd.Printf("CreatedAt: %d\n", obj.CreationEpoch())
cmd.Printf("Size: %d\n", obj.PayloadSize())
cmd.Printf("HomoHash: %s\n", hex.EncodeToString(obj.PayloadHomomorphicHash().Sum()))
cmd.Printf("Checksum: %s\n", hex.EncodeToString(obj.PayloadChecksum().Sum()))
switch obj.Type() {
case object.TypeRegular:
cmd.Println("Type: regular")
case object.TypeTombstone:
cmd.Println("Type: tombstone")
case object.TypeStorageGroup:
cmd.Println("Type: storage group")
default:
cmd.Println("Type: unknown")
}
cmd.Println("Attributes:")
for _, attr := range obj.Attributes() {
if attr.Key() == object.AttributeTimestamp {
cmd.Printf(" %s=%s (%s)\n",
attr.Key(),
attr.Value(),
prettyPrintUnixTime(attr.Value()))
continue
}
cmd.Printf(" %s=%s\n", attr.Key(), attr.Value())
}
return printSplitHeader(cmd, obj)
}
func printSplitHeader(cmd *cobra.Command, obj *object.Object) error {
if splitID := obj.SplitID(); splitID != nil {
cmd.Printf("Split ID: %s\n", splitID)
}
if oid := obj.ParentID(); oid != nil {
cmd.Printf("Split ParentID: %s\n", oid)
}
if prev := obj.PreviousID(); prev != nil {
cmd.Printf("Split PreviousID: %s\n", prev)
}
for _, child := range obj.Children() {
cmd.Printf("Split ChildID: %s\n", child)
}
if signature := obj.Signature(); signature != nil {
cmd.Print("Split Header Signature:\n")
cmd.Printf(" public key: %s\n", hex.EncodeToString(signature.Key()))
cmd.Printf(" signature: %s\n", hex.EncodeToString(signature.Sign()))
}
parent := obj.Parent()
if parent != nil {
cmd.Print("\nSplit Parent Header:\n")
return printHeader(cmd, parent)
}
return nil
}
func marshalHeader(cmd *cobra.Command, hdr *object.Object) ([]byte, error) {
toJSON, _ := cmd.Flags().GetBool("json")
toProto, _ := cmd.Flags().GetBool("proto")
switch {
case toJSON && toProto:
return nil, errors.New("'--json' and '--proto' flags are mutually exclusive")
case toJSON:
return hdr.MarshalJSON()
case toProto:
return hdr.Marshal()
default:
return nil, nil
}
}
func getBearerToken(cmd *cobra.Command, flagname string) (*token.BearerToken, error) {
path, err := cmd.Flags().GetString(flagname)
if err != nil || len(path) == 0 {
return nil, nil
}
data, err := os.ReadFile(path)
if err != nil {
return nil, fmt.Errorf("can't read bearer token file: %w", err)
}
tok := token.NewBearerToken()
if err := tok.UnmarshalJSON(data); err != nil {
if err = tok.Unmarshal(data); err != nil {
return nil, fmt.Errorf("can't decode bearer token: %w", err)
}
printVerbose("Using binary encoded bearer token")
} else {
printVerbose("Using JSON encoded bearer token")
}
return tok, nil
}
func getObjectRange(cmd *cobra.Command, _ []string) {
key, err := getKey()
exitOnErr(cmd, errf("can't fetch private key: %w", err))
objAddr, err := getObjectAddress(cmd)
exitOnErr(cmd, err)
ranges, err := getRangeList(cmd)
exitOnErr(cmd, err)
if len(ranges) != 1 {
exitOnErr(cmd, fmt.Errorf("exactly one range must be specified, got: %d", len(ranges)))
}
var out io.Writer
filename := cmd.Flag("file").Value.String()
if filename == "" {
out = os.Stdout
} else {
f, err := os.OpenFile(filename, os.O_CREATE|os.O_WRONLY, os.ModePerm)
if err != nil {
exitOnErr(cmd, fmt.Errorf("can't open file '%s': %w", filename, err))
}
defer f.Close()
out = f
}
ctx := context.Background()
c, sessionToken, err := initSession(ctx, key)
exitOnErr(cmd, err)
bearerToken, err := getBearerToken(cmd, "bearer")
exitOnErr(cmd, err)
raw, _ := cmd.Flags().GetBool(rawFlag)
_, err = c.ObjectPayloadRangeData(ctx,
new(client.RangeDataParams).
WithAddress(objAddr).
WithRange(ranges[0]).
WithDataWriter(out).
WithRaw(raw),
append(globalCallOptions(),
client.WithSession(sessionToken),
client.WithBearer(bearerToken),
)...,
)
if err != nil {
if ok := printSplitInfoErr(cmd, err); ok {
return
}
exitOnErr(cmd, fmt.Errorf("can't get object payload range: %w", err))
}
if filename != "" {
cmd.Printf("[%s] Payload successfully saved\n", filename)
}
}
func printSplitInfoErr(cmd *cobra.Command, err error) bool {
var errSplitInfo *object.SplitInfoError
ok := errors.As(err, &errSplitInfo)
if ok {
cmd.Println("Object is complex, split information received.")
printSplitInfo(cmd, errSplitInfo.SplitInfo())
}
return ok
}
func printSplitInfo(cmd *cobra.Command, info *object.SplitInfo) {
if splitID := info.SplitID(); splitID != nil {
cmd.Println("Split ID:", splitID)
}
if link := info.Link(); link != nil {
cmd.Println("Linking object:", link)
}
if last := info.LastPart(); last != nil {
cmd.Println("Last object:", last)
}
}