[#1216] neofs-cli: Allow to create and save session token

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

cmd/neofs-cli/modules/object.go

@@ -16,6 +16,7 @@ import (
 	"github.com/cheggaaa/pb"
 	objectV2 "github.com/nspcc-dev/neofs-api-go/v2/object"
 	internalclient "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/client"
+	sessionCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/session"
 	"github.com/nspcc-dev/neofs-sdk-go/checksum"
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
 	"github.com/nspcc-dev/neofs-sdk-go/object"
@@ -316,30 +317,11 @@ func prepareSessionPrmWithOwner(
 	ownerID *owner.ID,
 	prms ...clientKeySession,
 ) {
-	var (
-		sessionPrm internalclient.CreateSessionPrm
-		netInfoPrm internalclient.NetworkInfoPrm
-	)
+	cli, err := getSDKClient(key)
+	exitOnErr(cmd, errf("create API client: %w", err))
 
-	cws := make([]clientWithKey, 2, len(prms)+2)
-	cws[0] = &sessionPrm
-	cws[1] = &netInfoPrm
-
-	for i := range prms {
-		cws = append(cws, prms[i])
-	}
-
-	prepareAPIClientWithKey(cmd, key, cws...)
-
-	ni, err := internalclient.NetworkInfo(netInfoPrm)
-	exitOnErr(cmd, errf("read network info: %w", err))
-
-	cur := ni.NetworkInfo().CurrentEpoch()
-	exp := cur + sessionTokenLifetime
-	sessionPrm.SetExp(exp)
-
-	sessionRes, err := internalclient.CreateSession(sessionPrm)
-	exitOnErr(cmd, errf("open session: %w", err))
+	sessionToken, err := sessionCli.CreateSession(cli, ownerID, sessionTokenLifetime)
+	exitOnErr(cmd, err)
 
 	for i := range prms {
 		objectContext := session.NewObjectContext()
@@ -364,17 +346,18 @@ func prepareSessionPrmWithOwner(
 		objectContext.ApplyTo(addr)
 
 		tok := session.NewToken()
-		tok.SetID(sessionRes.ID())
-		tok.SetSessionKey(sessionRes.SessionKey())
-		tok.SetOwnerID(ownerID)
+		tok.SetID(sessionToken.ID())
+		tok.SetSessionKey(sessionToken.SessionKey())
+		tok.SetOwnerID(sessionToken.OwnerID())
 		tok.SetContext(objectContext)
-		tok.SetExp(exp)
-		tok.SetIat(cur)
-		tok.SetNbf(cur)
+		tok.SetExp(sessionToken.Exp())
+		tok.SetIat(sessionToken.Iat())
+		tok.SetNbf(sessionToken.Nbf())
 
 		err = tok.Sign(key)
 		exitOnErr(cmd, errf("session token signing: %w", err))
 
+		prms[i].SetClient(cli)
 		prms[i].SetSessionToken(tok)
 	}
 }

cmd/neofs-cli/modules/root.go

@@ -14,6 +14,7 @@ import (
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/key"
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/acl"
 	bearerCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/bearer"
+	sessionCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/session"
 	"github.com/nspcc-dev/neofs-node/misc"
 	"github.com/nspcc-dev/neofs-node/pkg/network"
 	"github.com/nspcc-dev/neofs-sdk-go/client"
@@ -120,6 +121,7 @@ func init() {
 
 	rootCmd.AddCommand(acl.Cmd)
 	rootCmd.AddCommand(bearerCli.Cmd)
+	rootCmd.AddCommand(sessionCli.Cmd)
 }
 
 func entryPoint(cmd *cobra.Command, _ []string) {

cmd/neofs-cli/modules/session/create.go

@@ -0,0 +1,127 @@
+package session
+
+import (
+	"fmt"
+	"io/ioutil"
+
+	internalclient "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/client"
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/key"
+	"github.com/nspcc-dev/neofs-node/pkg/network"
+	"github.com/nspcc-dev/neofs-sdk-go/client"
+	"github.com/nspcc-dev/neofs-sdk-go/owner"
+	"github.com/nspcc-dev/neofs-sdk-go/session"
+	"github.com/spf13/cobra"
+)
+
+const (
+	lifetimeFlag = "lifetime"
+	walletFlag   = "wallet"
+	accountFlag  = "address"
+	outFlag      = "out"
+	jsonFlag     = "json"
+	rpcFlag      = "rpc-endpoint"
+)
+
+const defaultLifetime = 10
+
+var createCmd = &cobra.Command{
+	Use:   "create",
+	Short: "Create session token",
+	RunE:  createSession,
+}
+
+func init() {
+	createCmd.Flags().Uint64P(lifetimeFlag, "l", defaultLifetime, "number of epochs for token to stay valid")
+	createCmd.Flags().StringP(walletFlag, "w", "", "path to the wallet")
+	createCmd.Flags().StringP(accountFlag, "a", "", "account address")
+	createCmd.Flags().String(outFlag, "", "file to write session token to")
+	createCmd.Flags().Bool(jsonFlag, false, "output token in JSON")
+	createCmd.Flags().StringP(rpcFlag, "r", "", "rpc-endpoint")
+
+	_ = cobra.MarkFlagRequired(createCmd.Flags(), lifetimeFlag)
+	_ = cobra.MarkFlagRequired(createCmd.Flags(), walletFlag)
+	_ = cobra.MarkFlagRequired(createCmd.Flags(), outFlag)
+	_ = cobra.MarkFlagRequired(createCmd.Flags(), rpcFlag)
+}
+
+func createSession(cmd *cobra.Command, _ []string) error {
+	walletPath, _ := cmd.Flags().GetString(walletFlag)
+	accPath, _ := cmd.Flags().GetString(accountFlag)
+	privKey, err := key.Get(walletPath, accPath)
+	if err != nil {
+		return err
+	}
+
+	var netAddr network.Address
+	addrStr, _ := cmd.Flags().GetString(rpcFlag)
+	if err := netAddr.FromString(addrStr); err != nil {
+		return err
+	}
+
+	c, err := internalclient.GetSDKClient(privKey, netAddr)
+	if err != nil {
+		return err
+	}
+
+	lifetime := uint64(defaultLifetime)
+	if lfArg, _ := cmd.Flags().GetUint64(lifetimeFlag); lfArg != 0 {
+		lifetime = lfArg
+	}
+
+	ownerID := owner.NewIDFromPublicKey(&privKey.PublicKey)
+	tok, err := CreateSession(c, ownerID, lifetime)
+	if err != nil {
+		return err
+	}
+
+	var data []byte
+
+	if toJSON, _ := cmd.Flags().GetBool(jsonFlag); toJSON {
+		data, err = tok.MarshalJSON()
+	} else {
+		data, err = tok.Marshal()
+	}
+	if err != nil {
+		return fmt.Errorf("can't marshal token: %w", err)
+	}
+
+	filename, _ := cmd.Flags().GetString(outFlag)
+	if err := ioutil.WriteFile(filename, data, 0644); err != nil {
+		return fmt.Errorf("can't write token to file: %w", err)
+	}
+	return nil
+}
+
+// CreateSession returns newly created session token with the specified owner and lifetime.
+// `Issued-At` and `Not-Valid-Before` fields are set to current epoch.
+func CreateSession(c *client.Client, owner *owner.ID, lifetime uint64) (*session.Token, error) {
+	var netInfoPrm internalclient.NetworkInfoPrm
+	netInfoPrm.SetClient(c)
+
+	ni, err := internalclient.NetworkInfo(netInfoPrm)
+	if err != nil {
+		return nil, fmt.Errorf("can't fetch network info: %w", err)
+	}
+
+	cur := ni.NetworkInfo().CurrentEpoch()
+	exp := cur + lifetime
+
+	var sessionPrm internalclient.CreateSessionPrm
+	sessionPrm.SetClient(c)
+	sessionPrm.SetExp(exp)
+
+	sessionRes, err := internalclient.CreateSession(sessionPrm)
+	if err != nil {
+		return nil, fmt.Errorf("can't open session: %w", err)
+	}
+
+	tok := session.NewToken()
+	tok.SetID(sessionRes.ID())
+	tok.SetSessionKey(sessionRes.SessionKey())
+	tok.SetOwnerID(owner)
+	tok.SetExp(exp)
+	tok.SetIat(cur)
+	tok.SetNbf(cur)
+
+	return tok, nil
+}

cmd/neofs-cli/modules/session/root.go

@@ -0,0 +1,14 @@
+package session
+
+import (
+	"github.com/spf13/cobra"
+)
+
+var Cmd = &cobra.Command{
+	Use:   "session",
+	Short: "Operations with session token",
+}
+
+func init() {
+	Cmd.AddCommand(createCmd)
+}