144 lines
4 KiB
Go
144 lines
4 KiB
Go
package session
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import (
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"fmt"
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"io/ioutil"
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"github.com/google/uuid"
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internalclient "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/client"
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"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
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"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/key"
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"github.com/nspcc-dev/neofs-node/pkg/network"
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"github.com/nspcc-dev/neofs-sdk-go/client"
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neofsecdsa "github.com/nspcc-dev/neofs-sdk-go/crypto/ecdsa"
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"github.com/nspcc-dev/neofs-sdk-go/session"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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)
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const (
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lifetimeFlag = "lifetime"
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outFlag = "out"
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jsonFlag = "json"
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)
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const defaultLifetime = 10
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var createCmd = &cobra.Command{
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Use: "create",
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Short: "Create session token",
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RunE: createSession,
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PersistentPreRun: func(cmd *cobra.Command, _ []string) {
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_ = viper.BindPFlag(commonflags.WalletPath, cmd.Flags().Lookup(commonflags.WalletPath))
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_ = viper.BindPFlag(commonflags.Account, cmd.Flags().Lookup(commonflags.Account))
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},
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}
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func init() {
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createCmd.Flags().Uint64P(lifetimeFlag, "l", defaultLifetime, "number of epochs for token to stay valid")
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createCmd.Flags().StringP(commonflags.WalletPath, commonflags.WalletPathShorthand, commonflags.WalletPathDefault, commonflags.WalletPathUsage)
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createCmd.Flags().StringP(commonflags.Account, commonflags.AccountShorthand, commonflags.AccountDefault, commonflags.AccountUsage)
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createCmd.Flags().String(outFlag, "", "file to write session token to")
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createCmd.Flags().Bool(jsonFlag, false, "output token in JSON")
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createCmd.Flags().StringP(commonflags.RPC, commonflags.RPCShorthand, commonflags.RPCDefault, commonflags.RPCUsage)
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_ = cobra.MarkFlagRequired(createCmd.Flags(), lifetimeFlag)
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_ = cobra.MarkFlagRequired(createCmd.Flags(), commonflags.WalletPath)
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_ = cobra.MarkFlagRequired(createCmd.Flags(), outFlag)
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_ = cobra.MarkFlagRequired(createCmd.Flags(), commonflags.RPC)
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}
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func createSession(cmd *cobra.Command, _ []string) error {
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privKey := key.Get(cmd)
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var netAddr network.Address
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addrStr, _ := cmd.Flags().GetString(commonflags.RPC)
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if err := netAddr.FromString(addrStr); err != nil {
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return err
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}
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c, err := internalclient.GetSDKClient(privKey, netAddr)
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if err != nil {
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return err
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}
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lifetime := uint64(defaultLifetime)
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if lfArg, _ := cmd.Flags().GetUint64(lifetimeFlag); lfArg != 0 {
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lifetime = lfArg
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}
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var tok session.Object
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err = CreateSession(&tok, c, lifetime)
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if err != nil {
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return err
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}
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var data []byte
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if toJSON, _ := cmd.Flags().GetBool(jsonFlag); toJSON {
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data, err = tok.MarshalJSON()
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if err != nil {
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return fmt.Errorf("decode session token JSON: %w", err)
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}
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} else {
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data = tok.Marshal()
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}
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filename, _ := cmd.Flags().GetString(outFlag)
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if err := ioutil.WriteFile(filename, data, 0644); err != nil {
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return fmt.Errorf("can't write token to file: %w", err)
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}
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return nil
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}
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// CreateSession opens a new communication with NeoFS storage node using client connection.
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// The session is expected to be maintained by the storage node during the given
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// number of epochs.
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//
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// Fills ID, lifetime and session key.
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func CreateSession(dst *session.Object, c *client.Client, lifetime uint64) error {
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var netInfoPrm internalclient.NetworkInfoPrm
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netInfoPrm.SetClient(c)
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ni, err := internalclient.NetworkInfo(netInfoPrm)
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if err != nil {
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return fmt.Errorf("can't fetch network info: %w", err)
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}
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cur := ni.NetworkInfo().CurrentEpoch()
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exp := cur + lifetime
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var sessionPrm internalclient.CreateSessionPrm
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sessionPrm.SetClient(c)
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sessionPrm.SetExp(exp)
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sessionRes, err := internalclient.CreateSession(sessionPrm)
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if err != nil {
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return fmt.Errorf("can't open session: %w", err)
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}
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binIDSession := sessionRes.ID()
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var keySession neofsecdsa.PublicKey
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err = keySession.Decode(sessionRes.SessionKey())
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if err != nil {
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return fmt.Errorf("decode public session key: %w", err)
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}
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var idSession uuid.UUID
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err = idSession.UnmarshalBinary(binIDSession)
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if err != nil {
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return fmt.Errorf("decode session ID: %w", err)
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}
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dst.SetID(idSession)
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dst.SetNbf(cur)
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dst.SetIat(cur)
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dst.SetExp(exp)
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dst.SetAuthKey(&keySession)
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return nil
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}
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