[#79] Implement object commands

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

cmd/neofs-cli/modules/object.go

@@ -1,24 +1,138 @@
 package cmd
 
 import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
 	"fmt"
+	"io"
+	"io/ioutil"
+	"math"
+	"os"
+	"strconv"
+	"strings"
 
+	"github.com/mr-tron/base58"
+	"github.com/nspcc-dev/neofs-api-go/pkg/client"
+	"github.com/nspcc-dev/neofs-api-go/pkg/container"
+	"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/token"
 	"github.com/spf13/cobra"
 )
 
+var (
 	// objectCmd represents the object command
-var objectCmd = &cobra.Command{
+	objectCmd = &cobra.Command{
 		Use:   "object",
 		Short: "Operations with Objects",
 		Long:  `Operations with Objects`,
-	Run: func(cmd *cobra.Command, args []string) {
-		fmt.Println("object called")
-	},
 	}
 
+	objectPutCmd = &cobra.Command{
+		Use:   "put",
+		Short: "Put object to NeoFS",
+		Long:  "Put object to NeoFS",
+		RunE:  putObject,
+	}
+
+	objectGetCmd = &cobra.Command{
+		Use:   "get",
+		Short: "Get object from NeoFS",
+		Long:  "Get object from NeoFS",
+		RunE:  getObject,
+	}
+
+	objectDelCmd = &cobra.Command{
+		Use:     "delete",
+		Aliases: []string{"del"},
+		Short:   "Delete object from NeoFS",
+		Long:    "Delete object from NeoFS",
+		RunE:    deleteObject,
+	}
+
+	objectSearchCmd = &cobra.Command{
+		Use:   "search",
+		Short: "Search object",
+		Long:  "Search object",
+		RunE:  searchObject,
+	}
+
+	objectHeadCmd = &cobra.Command{
+		Use:   "head",
+		Short: "Get object header",
+		Long:  "Get object header",
+		RunE:  getObjectHeader,
+	}
+
+	objectHashCmd = &cobra.Command{
+		Use:   "hash",
+		Short: "Get object hash",
+		Long:  "Get object hash",
+		RunE:  getObjectHash,
+	}
+)
+
+const (
+	hashSha256 = "sha256"
+	hashTz     = "tz"
+	rangeSep   = ":"
+)
+
 func init() {
 	rootCmd.AddCommand(objectCmd)
 
+	objectCmd.AddCommand(objectPutCmd)
+	objectPutCmd.Flags().String("file", "", "File with object payload")
+	_ = objectPutCmd.MarkFlagFilename("file")
+	_ = objectPutCmd.MarkFlagRequired("file")
+	objectPutCmd.Flags().String("cid", "", "Container ID")
+	_ = objectPutCmd.MarkFlagRequired("cid")
+	objectPutCmd.Flags().String("attributes", "", "User attributes in form of Key1=Value1,Key2=Value2")
+
+	objectCmd.AddCommand(objectDelCmd)
+	objectDelCmd.Flags().String("cid", "", "Container ID")
+	_ = objectDelCmd.MarkFlagRequired("cid")
+	objectDelCmd.Flags().String("oid", "", "Object ID")
+	_ = objectDelCmd.MarkFlagRequired("oid")
+
+	objectCmd.AddCommand(objectGetCmd)
+	objectGetCmd.Flags().String("file", "", "File to write object payload to. Default: stdout.")
+	objectGetCmd.Flags().String("header", "", "File to write header to. Default: stdout.")
+	objectGetCmd.Flags().String("cid", "", "Container ID")
+	_ = objectGetCmd.MarkFlagRequired("cid")
+	objectGetCmd.Flags().String("oid", "", "Object ID")
+	_ = objectGetCmd.MarkFlagRequired("oid")
+
+	objectCmd.AddCommand(objectSearchCmd)
+	objectSearchCmd.Flags().String("cid", "", "Container ID")
+	_ = objectSearchCmd.MarkFlagRequired("cid")
+	objectSearchCmd.Flags().String("filters", "", "Filters in the form hdrName=value,...")
+	objectSearchCmd.Flags().Bool("root", false, "Search for user objects")
+	objectSearchCmd.Flags().Bool("no-root", false, "Search for service objects")
+	objectSearchCmd.Flags().Bool("leaf", false, "Search physically stored objects")
+	objectSearchCmd.Flags().Bool("no-leaf", false, "Search for virtual objects")
+
+	objectCmd.AddCommand(objectHeadCmd)
+	objectHeadCmd.Flags().String("file", "", "File to write header to. Default: stdout.")
+	objectHeadCmd.Flags().String("cid", "", "Container ID")
+	_ = objectHeadCmd.MarkFlagRequired("cid")
+	objectHeadCmd.Flags().String("oid", "", "Object ID")
+	_ = objectHeadCmd.MarkFlagRequired("oid")
+	objectHeadCmd.Flags().Bool("main-only", false, "Return only main fields")
+	objectHeadCmd.Flags().Bool("json", false, "Marshal output in JSON")
+	objectHeadCmd.Flags().Bool("proto", false, "Marshal output in Protobuf")
+
+	objectCmd.AddCommand(objectHashCmd)
+	objectHashCmd.Flags().String("cid", "", "Container ID")
+	_ = objectHashCmd.MarkFlagRequired("cid")
+	objectHashCmd.Flags().String("oid", "", "Object ID")
+	_ = objectHashCmd.MarkFlagRequired("oid")
+	objectHashCmd.Flags().String("range", "", "Range to take hash from in the form offset1:length1,...")
+	objectHashCmd.Flags().String("type", hashSha256, "Hash type. Either 'sha256' or 'tz'")
+
 	// Here you will define your flags and configuration settings.
 
 	// Cobra supports Persistent Flags which will work for this command
@@ -29,3 +143,449 @@ func init() {
 	// is called directly, e.g.:
 	// objectCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
 }
+
+func initSession(ctx context.Context) (*client.Client, *token.SessionToken, error) {
+	cli, err := getSDKClient()
+	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) error {
+	ownerID, err := getOwnerID()
+	if err != nil {
+		return err
+	}
+	cid, err := getCID(cmd)
+	if err != nil {
+		return err
+	}
+
+	filename := cmd.Flag("file").Value.String()
+	f, err := os.OpenFile(filename, os.O_RDONLY, os.ModePerm)
+	if err != nil {
+		return fmt.Errorf("can't open file '%s': %w", filename, err)
+	}
+
+	attrs, err := parseObjectAttrs(cmd)
+	if err != nil {
+		return fmt.Errorf("can't parse object attributes: %w", err)
+	}
+
+	obj := object.NewRaw()
+	obj.SetContainerID(cid)
+	obj.SetOwnerID(ownerID)
+	obj.SetAttributes(attrs...)
+
+	ctx := context.Background()
+	cli, tok, err := initSession(ctx)
+	if err != nil {
+		return err
+	}
+	oid, err := cli.PutObject(ctx,
+		new(client.PutObjectParams).
+			WithObject(obj.Object()).
+			WithPayloadReader(f),
+		client.WithSession(tok))
+	if err != nil {
+		return fmt.Errorf("can't put object: %w", err)
+	}
+
+	cmd.Printf("[%s] Object successfully stored\n", filename)
+	cmd.Printf("  ID: %s\n  CID: %s\n", oid, cid)
+	return nil
+}
+
+func deleteObject(cmd *cobra.Command, _ []string) error {
+	objAddr, err := getObjectAddress(cmd)
+	if err != nil {
+		return err
+	}
+
+	ctx := context.Background()
+	cli, tok, err := initSession(ctx)
+	if err != nil {
+		return err
+	}
+	err = cli.DeleteObject(ctx,
+		new(client.DeleteObjectParams).WithAddress(objAddr),
+		client.WithSession(tok))
+	if err != nil {
+		return err
+	}
+
+	cmd.Println("Object removed successfully.")
+	cmd.Printf("  ID: %s\n  CID: %s\n", objAddr.GetObjectID(), objAddr.GetContainerID())
+	return nil
+}
+
+func getObject(cmd *cobra.Command, _ []string) error {
+	objAddr, err := getObjectAddress(cmd)
+	if err != nil {
+		return 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 {
+			return fmt.Errorf("can't open file '%s': %w", filename, err)
+		}
+		defer f.Close()
+		out = f
+	}
+
+	ctx := context.Background()
+	cli, tok, err := initSession(ctx)
+	if err != nil {
+		return err
+	}
+	obj, err := cli.GetObject(ctx,
+		new(client.GetObjectParams).
+			WithAddress(objAddr).
+			WithPayloadWriter(out),
+		client.WithSession(tok))
+	if err != nil {
+		return fmt.Errorf("can't put object: %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 != "" {
+		return printHeader(cmd, obj, hdrFile)
+	}
+	return nil
+}
+
+func getObjectHeader(cmd *cobra.Command, _ []string) error {
+	objAddr, err := getObjectAddress(cmd)
+	if err != nil {
+		return err
+	}
+
+	ctx := context.Background()
+	cli, tok, err := initSession(ctx)
+	if err != nil {
+		return err
+	}
+	ps := new(client.ObjectHeaderParams).WithAddress(objAddr)
+	if ok, _ := cmd.Flags().GetBool("main-only"); ok {
+		ps = ps.WithMainFields()
+	}
+	obj, err := cli.GetObjectHeader(ctx, ps, client.WithSession(tok))
+	if err != nil {
+		return fmt.Errorf("can't put object: %w", err)
+	}
+
+	return printHeader(cmd, obj, cmd.Flag("file").Value.String())
+}
+
+func searchObject(cmd *cobra.Command, _ []string) error {
+	cid, err := getCID(cmd)
+	if err != nil {
+		return err
+	}
+
+	sf, err := parseSearchFilters(cmd)
+	if err != nil {
+		return err
+	}
+
+	ctx := context.Background()
+	cli, tok, err := initSession(ctx)
+	if err != nil {
+		return err
+	}
+
+	ps := new(client.SearchObjectParams).WithContainerID(cid).WithSearchFilters(sf)
+	ids, err := cli.SearchObject(ctx, ps, client.WithSession(tok))
+	if err != nil {
+		return fmt.Errorf("can't put object: %w", err)
+	}
+	cmd.Printf("Found %d objects.\n", len(ids))
+	for _, id := range ids {
+		cmd.Println(id)
+	}
+	return nil
+}
+
+func getObjectHash(cmd *cobra.Command, _ []string) error {
+	objAddr, err := getObjectAddress(cmd)
+	if err != nil {
+		return err
+	}
+	ranges, err := getRangeList(cmd)
+	if err != nil {
+		return err
+	}
+	typ, err := getHashType(cmd)
+	if err != nil {
+		return err
+	}
+
+	ctx := context.Background()
+	cli, tok, err := initSession(ctx)
+	if err != nil {
+		return err
+	}
+	if len(ranges) == 0 { // hash of full payload
+		obj, err := cli.GetObjectHeader(ctx,
+			new(client.ObjectHeaderParams).WithAddress(objAddr),
+			client.WithSession(tok))
+		if err != nil {
+			return fmt.Errorf("can't get object: %w", err)
+		}
+		switch typ {
+		case hashSha256:
+			cmd.Println(hex.EncodeToString(obj.GetPayloadChecksum().GetSum()))
+		case hashTz:
+			cmd.Println(hex.EncodeToString(obj.GetPayloadHomomorphicHash().GetSum()))
+		}
+		return nil
+	}
+
+	ps := new(client.RangeChecksumParams).WithAddress(objAddr).WithRangeList(ranges...)
+	switch typ {
+	case hashSha256:
+		res, err := cli.ObjectPayloadRangeSHA256(ctx, ps, client.WithSession(tok))
+		if err != nil {
+			return 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, client.WithSession(tok))
+		if err != nil {
+			return err
+		}
+		for i := range res {
+			cmd.Printf("Offset=%d (Length=%d)\t: %s\n", ranges[i].GetOffset(), ranges[i].GetLength(),
+				hex.EncodeToString(res[i][:]))
+		}
+	}
+	return nil
+}
+
+func getOwnerID() (*owner.ID, error) {
+	key, err := getKey()
+	if err != nil {
+		return nil, err
+	}
+	w, err := owner.NEO3WalletFromPublicKey(&key.PublicKey)
+	if err != nil {
+		return nil, err
+	}
+	ownerID := owner.NewID()
+	ownerID.SetNeo3Wallet(w)
+	return ownerID, nil
+}
+
+func parseSearchFilters(cmd *cobra.Command) (object.SearchFilters, error) {
+	var fs object.SearchFilters
+	if raw := cmd.Flag("filters").Value.String(); len(raw) != 0 {
+		rawFs := strings.Split(raw, ",")
+		for i := range rawFs {
+			kv := strings.SplitN(rawFs[i], "=", 2)
+			if len(kv) != 2 {
+				return nil, fmt.Errorf("invalid filter format: %s", rawFs[i])
+			}
+			fs.AddFilter(kv[0], kv[1], object.MatchStringEqual)
+		}
+	}
+
+	root, _ := cmd.Flags().GetBool("root")
+	noroot, _ := cmd.Flags().GetBool("no-root")
+	switch {
+	case root && noroot:
+		return nil, errors.New("'--root' and '--no-root' flags can't be set together")
+	case root:
+		fs.AddRootFilter()
+	case noroot:
+		fs.AddNonRootFilter()
+	}
+
+	leaf, _ := cmd.Flags().GetBool("leaf")
+	noleaf, _ := cmd.Flags().GetBool("no-leaf")
+	switch {
+	case leaf && noleaf:
+		return nil, errors.New("'--leaf' and '--no-leaf' flags can't be set together")
+	case leaf:
+		fs.AddLeafFilter()
+	case noleaf:
+		fs.AddNonLeafFilter()
+	}
+
+	return fs, nil
+}
+
+func parseObjectAttrs(cmd *cobra.Command) ([]*object.Attribute, error) {
+	raw := cmd.Flag("attributes").Value.String()
+	if len(raw) == 0 {
+		return nil, nil
+	}
+	rawAttrs := strings.Split(raw, ",")
+	attrs := make([]*object.Attribute, len(rawAttrs))
+	for i := range rawAttrs {
+		kv := strings.SplitN(rawAttrs[i], "=", 2)
+		if len(kv) != 2 {
+			return nil, fmt.Errorf("invalid attribute format: %s", rawAttrs[i])
+		}
+		attrs[i] = object.NewAttribute()
+		attrs[i].SetKey(kv[0])
+		attrs[i].SetValue(kv[1])
+	}
+	return attrs, nil
+}
+
+func getCID(cmd *cobra.Command) (*container.ID, error) {
+	cid := container.NewID()
+	var v [32]byte
+	b, err := base58.Decode(cmd.Flag("cid").Value.String())
+	if err != nil {
+		return nil, err
+	} else if len(b) != sha256.Size {
+		return nil, errors.New("invalid length")
+	}
+	copy(v[:], b)
+	cid.SetSHA256(v)
+	return cid, nil
+}
+
+func getOID(cmd *cobra.Command) (*object.ID, error) {
+	oid := object.NewID()
+	var v [32]byte
+	b, err := base58.Decode(cmd.Flag("oid").Value.String())
+	if err != nil {
+		return nil, err
+	} else if len(b) != sha256.Size {
+		return nil, errors.New("invalid length")
+	}
+	copy(v[:], b)
+	oid.SetSHA256(v)
+	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 printHeader(cmd *cobra.Command, obj *object.Object, filename string) error {
+	bs, err := marshalHeader(cmd, obj)
+	if err != nil {
+		return err
+	}
+	if len(bs) != 0 {
+		if filename == "" {
+			cmd.Println(string(bs))
+			return nil
+		}
+		err := ioutil.WriteFile(filename, bs, os.ModePerm)
+		if err != nil {
+			return err
+		}
+		cmd.Printf("[%s] Header successfully saved.", filename)
+	}
+
+	cmd.Printf("ID: %s\n", obj.GetID())
+	cmd.Printf("CID: %s\n", obj.GetContainerID())
+	cmd.Printf("Owner: %s\n", obj.GetOwnerID())
+	cmd.Printf("CreatedAt: %d\n", obj.GetCreationEpoch())
+	cmd.Printf("Size: %d\n", obj.GetPayloadSize())
+	cmd.Printf("HomoHash: %s\n", hex.EncodeToString(obj.GetPayloadHomomorphicHash().GetSum()))
+	cmd.Printf("Checksum: %s\n", hex.EncodeToString(obj.GetPayloadChecksum().GetSum()))
+	switch obj.GetType() {
+	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.GetAttributes() {
+		cmd.Printf("  %s=%s\n", attr.GetKey(), attr.GetValue())
+	}
+	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 json.Marshal(hdr) // TODO currently not supported by neofs-api-go
+	case toProto:
+		return hdr.ToV2().StableMarshal(nil)
+	default:
+		return nil, nil
+	}
+}