frostfs-node/cmd/frostfs-adm/internal/modules/morph/util/n3client.go

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package util
import (
"context"
"errors"
"fmt"
"time"
"git.frostfs.info/TrueCloudLab/frostfs-node/cmd/frostfs-adm/internal/commonflags"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/neorpc/result"
"github.com/nspcc-dev/neo-go/pkg/rpcclient"
"github.com/nspcc-dev/neo-go/pkg/rpcclient/actor"
"github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/wallet"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
// Client represents N3 client interface capable of test-invoking scripts
// and sending signed transactions to chain.
type Client interface {
invoker.RPCInvoke
GetBlockCount() (uint32, error)
GetNativeContracts() ([]state.NativeContract, error)
GetApplicationLog(util.Uint256, *trigger.Type) (*result.ApplicationLog, error)
GetVersion() (*result.Version, error)
SendRawTransaction(*transaction.Transaction) (util.Uint256, error)
GetCommittee() (keys.PublicKeys, error)
CalculateNetworkFee(tx *transaction.Transaction) (int64, error)
}
type HashVUBPair struct {
Hash util.Uint256
Vub uint32
}
type ClientContext struct {
Client Client // a raw neo-go client OR a local chain implementation
CommitteeAct *actor.Actor // committee actor with the Global witness scope
ReadOnlyInvoker *invoker.Invoker // R/O contract invoker, does not contain any signer
SentTxs []HashVUBPair
}
func GetN3Client(v *viper.Viper) (Client, error) {
// number of opened connections
// by neo-go client per one host
const (
maxConnsPerHost = 10
requestTimeout = time.Second * 10
)
ctx := context.Background()
endpoint := v.GetString(commonflags.EndpointFlag)
if endpoint == "" {
return nil, errors.New("missing endpoint")
}
c, err := rpcclient.New(ctx, endpoint, rpcclient.Options{
MaxConnsPerHost: maxConnsPerHost,
RequestTimeout: requestTimeout,
})
if err != nil {
return nil, err
}
if err := c.Init(); err != nil {
return nil, err
}
return c, nil
}
func DefaultClientContext(c Client, committeeAcc *wallet.Account) (*ClientContext, error) {
commAct, err := NewActor(c, committeeAcc)
if err != nil {
return nil, err
}
return &ClientContext{
Client: c,
CommitteeAct: commAct,
ReadOnlyInvoker: invoker.New(c, nil),
}, nil
}
func (c *ClientContext) SendTx(tx *transaction.Transaction, cmd *cobra.Command, await bool) error {
h, err := c.Client.SendRawTransaction(tx)
if err != nil {
return err
}
if h != tx.Hash() {
return fmt.Errorf("sent and actual tx hashes mismatch:\n\tsent: %v\n\tactual: %v", tx.Hash().StringLE(), h.StringLE())
}
c.SentTxs = append(c.SentTxs, HashVUBPair{Hash: h, Vub: tx.ValidUntilBlock})
if await {
return c.AwaitTx(cmd)
}
return nil
}
func (c *ClientContext) AwaitTx(cmd *cobra.Command) error {
if len(c.SentTxs) == 0 {
return nil
}
if local, ok := c.Client.(*LocalClient); ok {
if err := local.putTransactions(); err != nil {
return fmt.Errorf("can't persist transactions: %w", err)
}
}
err := AwaitTx(cmd, c.Client, c.SentTxs)
c.SentTxs = c.SentTxs[:0]
return err
}