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supernet.go
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supernet.go
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package supernet
import (
"fmt"
"math/big"
"strings"
"github.com/esportzvio/frietorchain/chain"
"github.com/esportzvio/frietorchain/command"
"github.com/esportzvio/frietorchain/command/genesis"
"github.com/esportzvio/frietorchain/command/helper"
"github.com/esportzvio/frietorchain/command/polybftsecrets"
rootHelper "github.com/esportzvio/frietorchain/command/rootchain/helper"
"github.com/esportzvio/frietorchain/consensus/polybft"
"github.com/esportzvio/frietorchain/consensus/polybft/contractsapi"
"github.com/esportzvio/frietorchain/consensus/polybft/validator"
"github.com/esportzvio/frietorchain/txrelayer"
"github.com/esportzvio/frietorchain/types"
"github.com/spf13/cobra"
"github.com/umbracle/ethgo"
)
var params supernetParams
func GetCommand() *cobra.Command {
registerCmd := &cobra.Command{
Use: "supernet",
Short: "Supernet initialization & finalization command",
PreRunE: runPreRun,
RunE: runCommand,
}
setFlags(registerCmd)
return registerCmd
}
func runPreRun(cmd *cobra.Command, _ []string) error {
params.jsonRPC = helper.GetJSONRPCAddress(cmd)
return params.validateFlags()
}
func setFlags(cmd *cobra.Command) {
cmd.Flags().StringVar(
¶ms.accountDir,
polybftsecrets.AccountDirFlag,
"",
polybftsecrets.AccountDirFlagDesc,
)
cmd.Flags().StringVar(
¶ms.accountConfig,
polybftsecrets.AccountConfigFlag,
"",
polybftsecrets.AccountConfigFlagDesc,
)
cmd.Flags().StringVar(
¶ms.privateKey,
polybftsecrets.PrivateKeyFlag,
"",
polybftsecrets.PrivateKeyFlagDesc,
)
cmd.Flags().StringVar(
¶ms.genesisPath,
rootHelper.GenesisPathFlag,
rootHelper.DefaultGenesisPath,
rootHelper.GenesisPathFlagDesc,
)
cmd.Flags().StringVar(
¶ms.supernetManagerAddress,
rootHelper.SupernetManagerFlag,
"",
rootHelper.SupernetManagerFlagDesc,
)
cmd.Flags().StringVar(
¶ms.stakeManagerAddress,
rootHelper.StakeManagerFlag,
"",
rootHelper.StakeManagerFlagDesc,
)
cmd.Flags().BoolVar(
¶ms.finalizeGenesisSet,
finalizeGenesisSetFlag,
false,
"indicates if genesis validator set should be finalized on rootchain",
)
cmd.Flags().BoolVar(
¶ms.enableStaking,
enableStakingFlag,
false,
"indicates if staking will be enabled after finalization of genesis validators on rootchain",
)
cmd.MarkFlagsMutuallyExclusive(polybftsecrets.AccountDirFlag, polybftsecrets.AccountConfigFlag)
cmd.MarkFlagsMutuallyExclusive(polybftsecrets.PrivateKeyFlag, polybftsecrets.AccountConfigFlag)
cmd.MarkFlagsMutuallyExclusive(polybftsecrets.PrivateKeyFlag, polybftsecrets.AccountDirFlag)
helper.RegisterJSONRPCFlag(cmd)
}
func runCommand(cmd *cobra.Command, _ []string) error {
outputter := command.InitializeOutputter(cmd)
defer outputter.WriteOutput()
ownerKey, err := rootHelper.GetECDSAKey(params.privateKey, params.accountDir, params.accountConfig)
if err != nil {
return err
}
txRelayer, err := txrelayer.NewTxRelayer(txrelayer.WithIPAddress(params.jsonRPC))
if err != nil {
return fmt.Errorf("enlist validator failed: %w", err)
}
supernetAddr := ethgo.Address(types.StringToAddress(params.supernetManagerAddress))
if params.finalizeGenesisSet {
encoded, err := contractsapi.CustomSupernetManager.Abi.Methods["finalizeGenesis"].Encode([]interface{}{})
if err != nil {
return err
}
txn := ðgo.Transaction{
From: ownerKey.Address(),
Input: encoded,
To: &supernetAddr,
}
if _, err = txRelayer.Call(ownerKey.Address(), supernetAddr, encoded); err == nil {
receipt, err := txRelayer.SendTransaction(txn, ownerKey)
if err != nil {
return fmt.Errorf("finalizing genesis validator set failed. Error: %w", err)
}
if receipt.Status == uint64(types.ReceiptFailed) {
return fmt.Errorf("finalizing genesis validator set transaction failed on block %d", receipt.BlockNumber)
}
} else if !strings.Contains(err.Error(), "execution reverted: GenesisLib: already finalized") {
return err
}
chainConfig, err := chain.ImportFromFile(params.genesisPath)
if err != nil {
return fmt.Errorf("failed to read chain configuration: %w", err)
}
consensusConfig, err := polybft.GetPolyBFTConfig(chainConfig)
if err != nil {
return fmt.Errorf("failed to retrieve consensus configuration: %w", err)
}
stakeManager := types.StringToAddress(params.stakeManagerAddress)
callerAddr := types.Address(ownerKey.Address())
validatorMetadata := make([]*validator.ValidatorMetadata, len(consensusConfig.InitialValidatorSet))
// update Stake field of validators in genesis file
// based on their finalized stake on rootchain
for i, v := range consensusConfig.InitialValidatorSet {
finalizedStake, err := getFinalizedStake(callerAddr, v.Address, stakeManager,
consensusConfig.SupernetID, txRelayer)
if err != nil {
return fmt.Errorf("could not get finalized stake for validator: %v. Error: %w", v.Address, err)
}
v.Stake = finalizedStake
metadata, err := v.ToValidatorMetadata()
if err != nil {
return err
}
validatorMetadata[i] = metadata
}
// update the voting power in genesis block extra
// based on finalized stake on rootchain
genesisExtraData, err := genesis.GenerateExtraDataPolyBft(validatorMetadata)
if err != nil {
return err
}
chainConfig.Genesis.ExtraData = genesisExtraData
chainConfig.Params.Engine[polybft.ConsensusName] = consensusConfig
// save updated stake and genesis extra to genesis file on disk
if err := helper.WriteGenesisConfigToDisk(chainConfig, params.genesisPath); err != nil {
return fmt.Errorf("failed to save chain configuration bridge data: %w", err)
}
// initialize CheckpointManager contract since it needs to have a valid VotingPowers of validators
if err := initializeCheckpointManager(outputter, txRelayer,
consensusConfig, chainConfig.Params.ChainID, ownerKey); err != nil {
return fmt.Errorf("could not initialize CheckpointManager with finalized genesis validator set: %w", err)
}
}
if params.enableStaking {
encoded, err := contractsapi.CustomSupernetManager.Abi.Methods["enableStaking"].Encode([]interface{}{})
if err != nil {
return err
}
txn := ðgo.Transaction{
From: ownerKey.Address(),
Input: encoded,
To: &supernetAddr,
}
receipt, err := txRelayer.SendTransaction(txn, ownerKey)
if err != nil {
return fmt.Errorf("enabling staking on supernet manager failed. Error: %w", err)
}
if receipt.Status == uint64(types.ReceiptFailed) {
return fmt.Errorf("enable staking transaction failed on block %d", receipt.BlockNumber)
}
}
result := &supernetResult{
IsGenesisSetFinalized: params.finalizeGenesisSet,
IsStakingEnabled: params.enableStaking,
}
outputter.WriteCommandResult(result)
return nil
}
// geFinalizedStake returns finalized stake of given validator for given supernet on StakeManager
func getFinalizedStake(owner, validator, stakeManager types.Address, chainID int64,
txRelayer txrelayer.TxRelayer) (*big.Int, error) {
stakeOfFn := &contractsapi.StakeOfStakeManagerFn{
Validator: validator,
ID: new(big.Int).SetInt64(chainID),
}
encode, err := stakeOfFn.EncodeAbi()
if err != nil {
return nil, err
}
response, err := txRelayer.Call(ethgo.Address(owner), ethgo.Address(stakeManager), encode)
if err != nil {
return nil, err
}
return types.ParseUint256orHex(&response)
}
// validatorSetToABISlice converts given validators to generic map
// which is used for ABI encoding validator set being sent to the rootchain contract
func validatorSetToABISlice(o command.OutputFormatter,
validators []*validator.GenesisValidator) ([]*contractsapi.Validator, error) {
accSet := make(validator.AccountSet, len(validators))
if _, err := o.Write([]byte("[VALIDATORS - CHECKPOINT MANAGER] \n")); err != nil {
return nil, err
}
for i, val := range validators {
if _, err := o.Write([]byte(fmt.Sprintf("%v\n", val))); err != nil {
return nil, err
}
blsKey, err := val.UnmarshalBLSPublicKey()
if err != nil {
return nil, err
}
accSet[i] = &validator.ValidatorMetadata{
Address: val.Address,
BlsKey: blsKey,
VotingPower: new(big.Int).Set(val.Stake),
}
}
hash, err := accSet.Hash()
if err != nil {
return nil, err
}
if _, err := o.Write([]byte(
fmt.Sprintf("[VALIDATORS - CHECKPOINT MANAGER] Validators hash: %s\n", hash))); err != nil {
return nil, err
}
return accSet.ToAPIBinding(), nil
}
// initializeCheckpointManager initializes CheckpointManager contract on rootchain
// based on finalized stake (voting power) of genesis validators on root
func initializeCheckpointManager(outputter command.OutputFormatter,
txRelayer txrelayer.TxRelayer,
consensusConfig polybft.PolyBFTConfig, chainID int64,
deployerKey ethgo.Key) error {
validatorSet, err := validatorSetToABISlice(outputter, consensusConfig.InitialValidatorSet)
if err != nil {
return fmt.Errorf("failed to convert validators to map: %w", err)
}
initParams := &contractsapi.InitializeCheckpointManagerFn{
ChainID_: big.NewInt(chainID),
NewBls: consensusConfig.Bridge.BLSAddress,
NewBn256G2: consensusConfig.Bridge.BN256G2Address,
NewValidatorSet: validatorSet,
}
input, err := initParams.EncodeAbi()
if err != nil {
return fmt.Errorf("failed to encode initialization params for CheckpointManager.initialize. error: %w", err)
}
if _, err := rootHelper.SendTransaction(txRelayer, ethgo.Address(consensusConfig.Bridge.CheckpointManagerAddr),
input, "CheckpointManager", deployerKey); err != nil {
return err
}
outputter.WriteCommandResult(
&rootHelper.MessageResult{
Message: fmt.Sprintf("CheckpointManager contract is initialized"),
})
return nil
}