frostfs-node/cmd/frostfs-adm/internal/modules/morph/initialize_transfer.go
Evgenii Stratonikov 4368243bed [#750] adm: Drop deprecated NEP17BalanceOf()
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-10-25 07:57:05 +00:00

195 lines
5.5 KiB
Go

package morph
import (
"fmt"
"math/big"
"github.com/nspcc-dev/neo-go/pkg/core/native"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/io"
"github.com/nspcc-dev/neo-go/pkg/rpcclient"
"github.com/nspcc-dev/neo-go/pkg/rpcclient/gas"
"github.com/nspcc-dev/neo-go/pkg/rpcclient/neo"
"github.com/nspcc-dev/neo-go/pkg/rpcclient/nep17"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
scContext "github.com/nspcc-dev/neo-go/pkg/smartcontract/context"
"github.com/nspcc-dev/neo-go/pkg/vm/emit"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/nspcc-dev/neo-go/pkg/wallet"
)
const (
gasInitialTotalSupply = 30000000 * native.GASFactor
// initialAlphabetGASAmount represents the amount of GAS given to each alphabet node.
initialAlphabetGASAmount = 10_000 * native.GASFactor
// initialProxyGASAmount represents the amount of GAS given to a proxy contract.
initialProxyGASAmount = 50_000 * native.GASFactor
)
func (c *initializeContext) transferFunds() error {
ok, err := c.transferFundsFinished()
if ok || err != nil {
if err == nil {
c.Command.Println("Stage 1: already performed.")
}
return err
}
var transfers []rpcclient.TransferTarget
for _, acc := range c.Accounts {
to := acc.Contract.ScriptHash()
transfers = append(transfers,
rpcclient.TransferTarget{
Token: gas.Hash,
Address: to,
Amount: initialAlphabetGASAmount,
},
)
}
// It is convenient to have all funds at the committee account.
transfers = append(transfers,
rpcclient.TransferTarget{
Token: gas.Hash,
Address: c.CommitteeAcc.Contract.ScriptHash(),
Amount: (gasInitialTotalSupply - initialAlphabetGASAmount*int64(len(c.Wallets))) / 2,
},
rpcclient.TransferTarget{
Token: neo.Hash,
Address: c.CommitteeAcc.Contract.ScriptHash(),
Amount: native.NEOTotalSupply,
},
)
tx, err := createNEP17MultiTransferTx(c.Client, c.ConsensusAcc, 0, transfers, []rpcclient.SignerAccount{{
Signer: transaction.Signer{
Account: c.ConsensusAcc.Contract.ScriptHash(),
Scopes: transaction.CalledByEntry,
},
Account: c.ConsensusAcc,
}})
if err != nil {
return fmt.Errorf("can't create transfer transaction: %w", err)
}
if err := c.multiSignAndSend(tx, consensusAccountName); err != nil {
return fmt.Errorf("can't send transfer transaction: %w", err)
}
return c.awaitTx()
}
func (c *initializeContext) transferFundsFinished() (bool, error) {
acc := c.Accounts[0]
r := nep17.NewReader(c.ReadOnlyInvoker, gas.Hash)
res, err := r.BalanceOf(acc.Contract.ScriptHash())
return res.Cmp(big.NewInt(initialAlphabetGASAmount/2)) == 1, err
}
func (c *initializeContext) multiSignAndSend(tx *transaction.Transaction, accType string) error {
if err := c.multiSign(tx, accType); err != nil {
return err
}
return c.sendTx(tx, c.Command, false)
}
func (c *initializeContext) multiSign(tx *transaction.Transaction, accType string) error {
version, err := c.Client.GetVersion()
if err != nil {
// error appears only if client
// has not been initialized
panic(err)
}
network := version.Protocol.Network
// Use parameter context to avoid dealing with signature order.
pc := scContext.NewParameterContext("", network, tx)
h := c.CommitteeAcc.Contract.ScriptHash()
if accType == consensusAccountName {
h = c.ConsensusAcc.Contract.ScriptHash()
}
for _, w := range c.Wallets {
acc, err := getWalletAccount(w, accType)
if err != nil {
return fmt.Errorf("can't find %s wallet account: %w", accType, err)
}
priv := acc.PrivateKey()
sign := priv.SignHashable(uint32(network), tx)
if err := pc.AddSignature(h, acc.Contract, priv.PublicKey(), sign); err != nil {
return fmt.Errorf("can't add signature: %w", err)
}
if len(pc.Items[h].Signatures) == len(acc.Contract.Parameters) {
break
}
}
w, err := pc.GetWitness(h)
if err != nil {
return fmt.Errorf("incomplete signature: %w", err)
}
for i := range tx.Signers {
if tx.Signers[i].Account == h {
if i < len(tx.Scripts) {
tx.Scripts[i] = *w
} else if i == len(tx.Scripts) {
tx.Scripts = append(tx.Scripts, *w)
} else {
panic("BUG: invalid signing order")
}
return nil
}
}
return fmt.Errorf("%s account was not found among transaction signers", accType)
}
func (c *initializeContext) transferGASToProxy() error {
proxyCs := c.getContract(proxyContract)
r := nep17.NewReader(c.ReadOnlyInvoker, gas.Hash)
bal, err := r.BalanceOf(proxyCs.Hash)
if err != nil || bal.Sign() > 0 {
return err
}
tx, err := createNEP17MultiTransferTx(c.Client, c.CommitteeAcc, 0, []rpcclient.TransferTarget{{
Token: gas.Hash,
Address: proxyCs.Hash,
Amount: initialProxyGASAmount,
}}, nil)
if err != nil {
return err
}
if err := c.multiSignAndSend(tx, committeeAccountName); err != nil {
return err
}
return c.awaitTx()
}
func createNEP17MultiTransferTx(c Client, acc *wallet.Account, netFee int64,
recipients []rpcclient.TransferTarget, cosigners []rpcclient.SignerAccount) (*transaction.Transaction, error) {
from := acc.Contract.ScriptHash()
w := io.NewBufBinWriter()
for i := range recipients {
emit.AppCall(w.BinWriter, recipients[i].Token, "transfer", callflag.All,
from, recipients[i].Address, recipients[i].Amount, recipients[i].Data)
emit.Opcodes(w.BinWriter, opcode.ASSERT)
}
if w.Err != nil {
return nil, fmt.Errorf("failed to create transfer script: %w", w.Err)
}
return c.CreateTxFromScript(w.Bytes(), acc, -1, netFee, append([]rpcclient.SignerAccount{{
Signer: transaction.Signer{
Account: from,
Scopes: transaction.CalledByEntry,
},
Account: acc,
}}, cosigners...))
}