frostfs-node/cmd/neofs-cli/modules/session/util.go

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package session
import (
"crypto/ecdsa"
"io/ioutil"
internalclient "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"
"github.com/nspcc-dev/neofs-sdk-go/client"
cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
"github.com/nspcc-dev/neofs-sdk-go/session"
"github.com/spf13/cobra"
)
// RPCParameters represents parameters for operations with session token.
type RPCParameters interface {
SetClient(*client.Client)
SetSessionToken(*session.Object)
}
const sessionTokenLifetime = 10 // in epochs
// Prepare prepares session for a command.
func Prepare(cmd *cobra.Command, cnr cid.ID, obj *oid.ID, key *ecdsa.PrivateKey, prms ...RPCParameters) {
cli := internalclient.GetSDKClientByFlag(cmd, key, commonflags.RPC)
var tok session.Object
if tokenPath, _ := cmd.Flags().GetString(commonflags.SessionToken); len(tokenPath) != 0 {
data, err := ioutil.ReadFile(tokenPath)
common.ExitOnErr(cmd, "can't read session token: %w", err)
if err := tok.Unmarshal(data); err != nil {
err = tok.UnmarshalJSON(data)
common.ExitOnErr(cmd, "can't unmarshal session token: %w", err)
}
} else {
err := CreateSession(&tok, cli, sessionTokenLifetime)
common.ExitOnErr(cmd, "create session: %w", err)
}
for i := range prms {
switch prms[i].(type) {
case *internalclient.GetObjectPrm:
tok.ForVerb(session.VerbObjectGet)
case *internalclient.HeadObjectPrm:
tok.ForVerb(session.VerbObjectHead)
case *internalclient.PutObjectPrm:
tok.ForVerb(session.VerbObjectPut)
case *internalclient.DeleteObjectPrm:
tok.ForVerb(session.VerbObjectDelete)
case *internalclient.SearchObjectsPrm:
tok.ForVerb(session.VerbObjectSearch)
case *internalclient.PayloadRangePrm:
tok.ForVerb(session.VerbObjectRange)
case *internalclient.HashPayloadRangesPrm:
tok.ForVerb(session.VerbObjectRangeHash)
default:
panic("invalid client parameter type")
}
tok.BindContainer(cnr)
if obj != nil {
tok.LimitByObject(*obj)
}
err := tok.Sign(*key)
common.ExitOnErr(cmd, "session token signing: %w", err)
prms[i].SetClient(cli)
prms[i].SetSessionToken(&tok)
}
}