frostfs-api-go/pkg/client/session.go
Leonard Lyubich da89c2b71f [#337] client: Add option to specify callback of response information
There is a need to analyze some response information in API client.

Define `ResponseMetaInfo` structure of response information. Add
`WithResponseInfoHandler` client option which allows to set the response
info callback. The callback is called right after any response is received.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-09-28 18:15:29 +03:00

79 lines
2 KiB
Go

package client
import (
"context"
"errors"
"fmt"
"github.com/nspcc-dev/neofs-api-go/pkg/owner"
"github.com/nspcc-dev/neofs-api-go/pkg/session"
"github.com/nspcc-dev/neofs-api-go/rpc/client"
rpcapi "github.com/nspcc-dev/neofs-api-go/v2/rpc"
v2session "github.com/nspcc-dev/neofs-api-go/v2/session"
v2signature "github.com/nspcc-dev/neofs-api-go/v2/signature"
)
// Session contains session-related methods.
type Session interface {
// CreateSession creates session using provided expiration time.
CreateSession(context.Context, uint64, ...CallOption) (*session.Token, error)
}
var errMalformedResponseBody = errors.New("malformed response body")
func (c *clientImpl) CreateSession(ctx context.Context, expiration uint64, opts ...CallOption) (*session.Token, error) {
// apply all available options
callOptions := c.defaultCallOptions()
for i := range opts {
opts[i](callOptions)
}
w, err := owner.NEO3WalletFromPublicKey(&callOptions.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(callOptions.key, req)
if err != nil {
return nil, err
}
resp, err := rpcapi.CreateSession(c.Raw(), req, client.WithContext(ctx))
if err != nil {
return nil, fmt.Errorf("transport error: %w", err)
}
// handle response meta info
if err := c.handleResponseInfoV2(callOptions, resp); err != nil {
return nil, err
}
err = v2signature.VerifyServiceMessage(resp)
if err != nil {
return nil, fmt.Errorf("can't verify response message: %w", err)
}
body := resp.GetBody()
if body == nil {
return nil, errMalformedResponseBody
}
sessionToken := session.NewToken()
sessionToken.SetID(body.GetID())
sessionToken.SetSessionKey(body.GetSessionKey())
sessionToken.SetOwnerID(ownerID)
return sessionToken, nil
}