frostfs-api-go-pogpp/pkg/client/session.go

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package client
import (
"context"
"github.com/nspcc-dev/neofs-api-go/pkg/owner"
"github.com/nspcc-dev/neofs-api-go/pkg/token"
"github.com/nspcc-dev/neofs-api-go/v2/client"
v2session "github.com/nspcc-dev/neofs-api-go/v2/session"
v2signature "github.com/nspcc-dev/neofs-api-go/v2/signature"
"github.com/pkg/errors"
)
func (c Client) CreateSession(ctx context.Context, expiration uint64, opts ...CallOption) (*token.SessionToken, error) {
switch c.remoteNode.Version.GetMajor() {
case 2:
return c.createSessionV2(ctx, expiration, opts...)
default:
return nil, unsupportedProtocolErr
}
}
func (c Client) createSessionV2(ctx context.Context, expiration uint64, opts ...CallOption) (*token.SessionToken, error) {
// apply all available options
callOptions := defaultCallOptions()
for i := range opts {
opts[i].apply(&callOptions)
}
w, err := owner.NEO3WalletFromPublicKey(&c.key.PublicKey)
if err != nil {
return nil, err
}
ownerID := new(owner.ID)
ownerID.SetNeo3Wallet(w)
reqBody := new(v2session.CreateRequestBody)
reqBody.SetOwnerID(ownerID.ToV2())
reqBody.SetExpiration(expiration)
req := new(v2session.CreateRequest)
req.SetBody(reqBody)
req.SetMetaHeader(v2MetaHeaderFromOpts(callOptions))
err = v2signature.SignServiceMessage(c.key, req)
if err != nil {
return nil, err
}
switch c.remoteNode.Protocol {
case GRPC:
cli, err := v2SessionClientFromOptions(c.opts)
if err != nil {
return nil, errors.Wrap(err, "can't create grpc client")
}
resp, err := cli.Create(ctx, req)
if err != nil {
return nil, errors.Wrap(err, "transport error")
}
err = v2signature.VerifyServiceMessage(resp)
if err != nil {
return nil, errors.Wrap(err, "can't verify response message")
}
body := resp.GetBody()
if body == nil {
return nil, errors.New("malformed response body")
}
sessionToken := token.NewSessionToken()
sessionToken.SetID(body.GetID())
sessionToken.SetSessionKey(body.GetSessionKey())
sessionToken.SetOwnerID(ownerID)
return sessionToken, nil
default:
return nil, unsupportedProtocolErr
}
}
func v2SessionClientFromOptions(opts *clientOptions) (cli *v2session.Client, err error) {
switch {
case opts.grpcOpts.v2SessionClient != nil:
// return value from client cache
return opts.grpcOpts.v2SessionClient, nil
case opts.grpcOpts.conn != nil:
cli, err = v2session.NewClient(v2session.WithGlobalOpts(
client.WithGRPCConn(opts.grpcOpts.conn)),
)
case opts.addr != "":
cli, err = v2session.NewClient(v2session.WithGlobalOpts(
client.WithNetworkAddress(opts.addr)),
)
default:
return nil, errors.New("lack of sdk client options to create accounting client")
}
// check if client correct and save in cache
if err != nil {
return nil, err
}
opts.grpcOpts.v2SessionClient = cli
return cli, nil
}