/
contracts_initializer.go
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/
contracts_initializer.go
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package polybft
import (
"fmt"
"math/big"
"github.com/0xPolygon/polygon-edge/consensus/polybft/contractsapi"
"github.com/0xPolygon/polygon-edge/contracts"
"github.com/0xPolygon/polygon-edge/state"
"github.com/0xPolygon/polygon-edge/types"
"github.com/umbracle/ethgo/abi"
)
const (
contractCallGasLimit = 100_000_000
)
// initValidatorSet initializes ValidatorSet SC
func initValidatorSet(polyBFTConfig PolyBFTConfig, transition *state.Transition) error {
initialValidators := make([]*contractsapi.ValidatorInit, len(polyBFTConfig.InitialValidatorSet))
for i, validator := range polyBFTConfig.InitialValidatorSet {
initialValidators[i] = &contractsapi.ValidatorInit{
Addr: validator.Address,
Stake: validator.Stake,
}
}
initFn := &contractsapi.InitializeValidatorSetFn{
NewStateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewRootChainManager: polyBFTConfig.Bridge.CustomSupernetManagerAddr,
NewEpochSize: new(big.Int).SetUint64(polyBFTConfig.EpochSize),
InitialValidators: initialValidators,
}
input, err := initFn.EncodeAbi()
if err != nil {
return fmt.Errorf("ValidatorSet.initialize params encoding failed: %w", err)
}
return callContract(contracts.SystemCaller,
contracts.ValidatorSetContract, input, "ValidatorSet.initialize", transition)
}
// initRewardPool initializes RewardPool SC
func initRewardPool(polybftConfig PolyBFTConfig, transition *state.Transition) error {
initFn := &contractsapi.InitializeRewardPoolFn{
NewRewardToken: polybftConfig.RewardConfig.TokenAddress,
NewRewardWallet: polybftConfig.RewardConfig.WalletAddress,
NewValidatorSet: contracts.ValidatorSetContract,
NewBaseReward: new(big.Int).SetUint64(polybftConfig.EpochReward),
}
input, err := initFn.EncodeAbi()
if err != nil {
return fmt.Errorf("RewardPool.initialize params encoding failed: %w", err)
}
return callContract(contracts.SystemCaller,
contracts.RewardPoolContract, input, "RewardPool.initialize", transition)
}
// getInitERC20PredicateInput builds initialization input parameters for child chain ERC20Predicate SC
func getInitERC20PredicateInput(config *BridgeConfig, childChainMintable bool) ([]byte, error) {
var params contractsapi.StateTransactionInput
if childChainMintable {
params = &contractsapi.InitializeRootMintableERC20PredicateFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewChildERC20Predicate: config.ChildMintableERC20PredicateAddr,
NewChildTokenTemplate: config.ChildERC20Addr,
}
} else {
params = &contractsapi.InitializeChildERC20PredicateFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewRootERC20Predicate: config.RootERC20PredicateAddr,
NewChildTokenTemplate: contracts.ChildERC20Contract,
NewNativeTokenRootAddress: config.RootNativeERC20Addr,
}
}
return params.EncodeAbi()
}
// getInitERC20PredicateACLInput builds initialization input parameters for child chain ERC20PredicateAccessList SC
func getInitERC20PredicateACLInput(config *BridgeConfig, owner types.Address,
useAllowList, useBlockList, childChainMintable bool) ([]byte, error) {
var params contractsapi.StateTransactionInput
if childChainMintable {
params = &contractsapi.InitializeRootMintableERC20PredicateACLFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewChildERC20Predicate: config.ChildMintableERC20PredicateAddr,
NewChildTokenTemplate: config.ChildERC20Addr,
NewUseAllowList: useAllowList,
NewUseBlockList: useBlockList,
NewOwner: owner,
}
} else {
params = &contractsapi.InitializeChildERC20PredicateACLFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewRootERC20Predicate: config.RootERC20PredicateAddr,
NewChildTokenTemplate: contracts.ChildERC20Contract,
NewNativeTokenRootAddress: config.RootNativeERC20Addr,
NewUseAllowList: useAllowList,
NewUseBlockList: useBlockList,
NewOwner: owner,
}
}
return params.EncodeAbi()
}
// getInitERC721PredicateInput builds initialization input parameters for child chain ERC721Predicate SC
func getInitERC721PredicateInput(config *BridgeConfig, childOriginatedTokens bool) ([]byte, error) {
var params contractsapi.StateTransactionInput
if childOriginatedTokens {
params = &contractsapi.InitializeRootMintableERC721PredicateFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewChildERC721Predicate: config.ChildMintableERC721PredicateAddr,
NewChildTokenTemplate: config.ChildERC721Addr,
}
} else {
params = &contractsapi.InitializeChildERC721PredicateFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewRootERC721Predicate: config.RootERC721PredicateAddr,
NewChildTokenTemplate: contracts.ChildERC721Contract,
}
}
return params.EncodeAbi()
}
// getInitERC721PredicateACLInput builds initialization input parameters
// for child chain ERC721PredicateAccessList SC
func getInitERC721PredicateACLInput(config *BridgeConfig, owner types.Address,
useAllowList, useBlockList, childChainMintable bool) ([]byte, error) {
var params contractsapi.StateTransactionInput
if childChainMintable {
params = &contractsapi.InitializeRootMintableERC721PredicateACLFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewChildERC721Predicate: config.ChildMintableERC721PredicateAddr,
NewChildTokenTemplate: config.ChildERC721Addr,
NewUseAllowList: useAllowList,
NewUseBlockList: useBlockList,
NewOwner: owner,
}
} else {
params = &contractsapi.InitializeChildERC721PredicateACLFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewRootERC721Predicate: config.RootERC721PredicateAddr,
NewChildTokenTemplate: contracts.ChildERC721Contract,
NewUseAllowList: useAllowList,
NewUseBlockList: useBlockList,
NewOwner: owner,
}
}
return params.EncodeAbi()
}
// getInitERC1155PredicateInput builds initialization input parameters for child chain ERC1155Predicate SC
func getInitERC1155PredicateInput(config *BridgeConfig, childChainMintable bool) ([]byte, error) {
var params contractsapi.StateTransactionInput
if childChainMintable {
params = &contractsapi.InitializeRootMintableERC1155PredicateFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewChildERC1155Predicate: config.ChildMintableERC1155PredicateAddr,
NewChildTokenTemplate: config.ChildERC1155Addr,
}
} else {
params = &contractsapi.InitializeChildERC1155PredicateFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewRootERC1155Predicate: config.RootERC1155PredicateAddr,
NewChildTokenTemplate: contracts.ChildERC1155Contract,
}
}
return params.EncodeAbi()
}
// getInitERC1155PredicateACLInput builds initialization input parameters
// for child chain ERC1155PredicateAccessList SC
func getInitERC1155PredicateACLInput(config *BridgeConfig, owner types.Address,
useAllowList, useBlockList, childChainMintable bool) ([]byte, error) {
var params contractsapi.StateTransactionInput
if childChainMintable {
params = &contractsapi.InitializeRootMintableERC1155PredicateACLFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewChildERC1155Predicate: config.ChildMintableERC1155PredicateAddr,
NewChildTokenTemplate: config.ChildERC1155Addr,
NewUseAllowList: useAllowList,
NewUseBlockList: useBlockList,
NewOwner: owner,
}
} else {
params = &contractsapi.InitializeChildERC1155PredicateACLFn{
NewL2StateSender: contracts.L2StateSenderContract,
NewStateReceiver: contracts.StateReceiverContract,
NewRootERC1155Predicate: config.RootERC1155PredicateAddr,
NewChildTokenTemplate: contracts.ChildERC1155Contract,
NewUseAllowList: useAllowList,
NewUseBlockList: useBlockList,
NewOwner: owner,
}
}
return params.EncodeAbi()
}
// mintRewardTokensToWallet mints configured amount of reward tokens to reward wallet address
func mintRewardTokensToWallet(polyBFTConfig PolyBFTConfig, transition *state.Transition) error {
if isNativeRewardToken(polyBFTConfig) {
// if reward token is a native erc20 token, we don't need to mint an amount of tokens
// for given wallet address to it since this is done in premine
return nil
}
mintFn := contractsapi.MintRootERC20Fn{
To: polyBFTConfig.RewardConfig.WalletAddress,
Amount: polyBFTConfig.RewardConfig.WalletAmount,
}
input, err := mintFn.EncodeAbi()
if err != nil {
return fmt.Errorf("RewardToken.mint params encoding failed: %w", err)
}
return callContract(contracts.SystemCaller, polyBFTConfig.RewardConfig.TokenAddress, input,
"RewardToken.mint", transition)
}
// approveRewardPoolAsSpender approves reward pool contract as reward token spender
// since reward pool distributes rewards.
func approveRewardPoolAsSpender(polyBFTConfig PolyBFTConfig, transition *state.Transition) error {
approveFn := &contractsapi.ApproveRootERC20Fn{
Spender: contracts.RewardPoolContract,
Amount: polyBFTConfig.RewardConfig.WalletAmount,
}
input, err := approveFn.EncodeAbi()
if err != nil {
return fmt.Errorf("RewardToken.approve params encoding failed: %w", err)
}
return callContract(polyBFTConfig.RewardConfig.WalletAddress,
polyBFTConfig.RewardConfig.TokenAddress, input, "RewardToken.approve", transition)
}
// callContract calls given smart contract function, encoded in input parameter
func callContract(from, to types.Address, input []byte, contractName string, transition *state.Transition) error {
result := transition.Call2(from, to, input, big.NewInt(0), contractCallGasLimit)
if result.Failed() {
if result.Reverted() {
if revertReason, err := abi.UnpackRevertError(result.ReturnValue); err == nil {
return fmt.Errorf("%s contract call was reverted: %s", contractName, revertReason)
}
}
return fmt.Errorf("%s contract call failed: %w", contractName, result.Err)
}
return nil
}
// isNativeRewardToken returns true in case a native token is used as a reward token as well
func isNativeRewardToken(cfg PolyBFTConfig) bool {
return cfg.RewardConfig.TokenAddress == contracts.NativeERC20TokenContract
}