The core protocol of WoopChain
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woop/core/genesis.go

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12 KiB

// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package core
import (
"bytes"
"crypto/ecdsa"
"encoding/hex"
"encoding/json"
"errors"
"fmt"
"math/big"
"os"
"strings"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/rlp"
blockfactory "github.com/harmony-one/harmony/block/factory"
"github.com/harmony-one/harmony/internal/params"
"github.com/harmony-one/harmony/staking/slash"
"github.com/harmony-one/harmony/common/denominations"
"github.com/harmony-one/harmony/core/rawdb"
"github.com/harmony-one/harmony/core/state"
"github.com/harmony-one/harmony/core/types"
nodeconfig "github.com/harmony-one/harmony/internal/configs/node"
shardingconfig "github.com/harmony-one/harmony/internal/configs/sharding"
"github.com/harmony-one/harmony/internal/utils"
"github.com/harmony-one/harmony/shard"
)
// no go:generate gencodec -type Genesis -field-override genesisSpecMarshaling -out gen_genesis.go
// no go:generate gencodec -type GenesisAccount -field-override genesisAccountMarshaling -out gen_genesis_account.go
var errGenesisNoConfig = errors.New("genesis has no chain configuration")
const (
// GenesisEpoch is the number of the genesis epoch.
GenesisEpoch = 0
// GenesisONEToken is the initial total number of ONE in the genesis block for mainnet.
GenesisONEToken = 12600000000
// ContractDeployerInitFund is the initial fund for the contract deployer account in testnet/devnet.
ContractDeployerInitFund = 10000000000
// InitFreeFund is the initial fund for permissioned accounts for testnet/devnet/
InitFreeFund = 100
)
var (
// GenesisFund is the initial total number of ONE (in atto) in the genesis block for mainnet.
GenesisFund = new(big.Int).Mul(big.NewInt(GenesisONEToken), big.NewInt(denominations.One))
)
// Genesis specifies the header fields, state of a genesis block. It also defines hard
// fork switch-over blocks through the chain configuration.
type Genesis struct {
Config *params.ChainConfig `json:"config"`
Factory blockfactory.Factory `json:"-"`
Nonce uint64 `json:"nonce"`
ShardID uint32 `json:"shardID"`
Timestamp uint64 `json:"timestamp"`
ExtraData []byte `json:"extraData"`
GasLimit uint64 `json:"gasLimit" gencodec:"required"`
Mixhash common.Hash `json:"mixHash"`
Coinbase common.Address `json:"coinbase"`
Alloc GenesisAlloc `json:"alloc" gencodec:"required"`
ShardStateHash common.Hash `json:"shardStateHash" gencodec:"required"`
ShardState shard.State `json:"shardState" gencodec:"required"`
// These fields are used for consensus tests. Please don't use them
// in actual genesis blocks.
Number uint64 `json:"number"`
GasUsed uint64 `json:"gasUsed"`
ParentHash common.Hash `json:"parentHash"`
}
// NewGenesisSpec creates a new genesis spec for the given network type and shard ID.
// Note that the shard state is NOT initialized.
func NewGenesisSpec(netType nodeconfig.NetworkType, shardID uint32) *Genesis {
genesisAlloc := make(GenesisAlloc)
chainConfig := params.ChainConfig{}
gasLimit := params.GenesisGasLimit
switch netType {
case nodeconfig.Mainnet:
chainConfig = *params.MainnetChainConfig
if shardID == 0 {
foundationAddress := common.HexToAddress("0xE25ABC3f7C3d5fB7FB81EAFd421FF1621A61107c")
genesisAlloc[foundationAddress] = GenesisAccount{Balance: GenesisFund}
}
case nodeconfig.Testnet:
chainConfig = *params.TestnetChainConfig
case nodeconfig.Pangaea:
chainConfig = *params.PangaeaChainConfig
case nodeconfig.Partner:
chainConfig = *params.PartnerChainConfig
case nodeconfig.Stressnet:
chainConfig = *params.StressnetChainConfig
case nodeconfig.Localnet:
chainConfig = *params.LocalnetChainConfig
default: // all other types share testnet config
chainConfig = *params.TestChainConfig
}
// All non-mainnet chains get test accounts
if netType != nodeconfig.Mainnet {
gasLimit = params.TestGenesisGasLimit
// Smart contract deployer account used to deploy initial smart contract
contractDeployerKey, _ := ecdsa.GenerateKey(
crypto.S256(),
strings.NewReader("Test contract key string stream that is fixed so that generated test key are deterministic every time"),
)
contractDeployerAddress := crypto.PubkeyToAddress(contractDeployerKey.PublicKey)
contractDeployerFunds := big.NewInt(ContractDeployerInitFund)
contractDeployerFunds = contractDeployerFunds.Mul(
contractDeployerFunds, big.NewInt(denominations.One),
)
genesisAlloc[contractDeployerAddress] = GenesisAccount{Balance: contractDeployerFunds}
// Localnet only testing account
if netType == nodeconfig.Localnet {
// PK: 1f84c95ac16e6a50f08d44c7bde7aff8742212fda6e4321fde48bf83bef266dc
testAddress := common.HexToAddress("0xA5241513DA9F4463F1d4874b548dFBAC29D91f34")
genesisAlloc[testAddress] = GenesisAccount{Balance: contractDeployerFunds}
}
}
return &Genesis{
Config: &chainConfig,
Factory: blockfactory.NewFactory(&chainConfig),
Alloc: genesisAlloc,
ShardID: shardID,
GasLimit: gasLimit,
Timestamp: 1561734000, // GMT: Friday, June 28, 2019 3:00:00 PM. PST: Friday, June 28, 2019 8:00:00 AM
ExtraData: []byte("Harmony for One and All. Open Consensus for 10B."),
}
}
// GenesisAlloc specifies the initial state that is part of the genesis block.
type GenesisAlloc map[common.Address]GenesisAccount
// UnmarshalJSON is to deserialize the data into GenesisAlloc.
func (ga *GenesisAlloc) UnmarshalJSON(data []byte) error {
m := make(map[common.UnprefixedAddress]GenesisAccount)
if err := json.Unmarshal(data, &m); err != nil {
return err
}
*ga = make(GenesisAlloc)
for addr, a := range m {
(*ga)[common.Address(addr)] = a
}
return nil
}
// GenesisAccount is an account in the state of the genesis block.
type GenesisAccount struct {
Code []byte `json:"code,omitempty"`
Storage map[common.Hash]common.Hash `json:"storage,omitempty"`
Balance *big.Int `json:"balance" gencodec:"required"`
Nonce uint64 `json:"nonce,omitempty"`
PrivateKey []byte `json:"secretKey,omitempty"` // for tests
}
// field type overrides for gencodec
type genesisSpecMarshaling struct {
Nonce math.HexOrDecimal64
Timestamp math.HexOrDecimal64
ExtraData hexutil.Bytes
GasLimit math.HexOrDecimal64
GasUsed math.HexOrDecimal64
Number math.HexOrDecimal64
Difficulty *math.HexOrDecimal256
Alloc map[common.UnprefixedAddress]GenesisAccount
}
type genesisAccountMarshaling struct {
Code hexutil.Bytes
Balance *math.HexOrDecimal256
Nonce math.HexOrDecimal64
Storage map[storageJSON]storageJSON
PrivateKey hexutil.Bytes
}
// storageJSON represents a 256 bit byte array, but allows less than 256 bits when
// unmarshaling from hex.
type storageJSON common.Hash
func (h *storageJSON) UnmarshalText(text []byte) error {
text = bytes.TrimPrefix(text, []byte("0x"))
if len(text) > 64 {
return fmt.Errorf("too many hex characters in storage key/value %q", text)
}
offset := len(h) - len(text)/2 // pad on the left
if _, err := hex.Decode(h[offset:], text); err != nil {
return fmt.Errorf("invalid hex storage key/value %q", text)
}
return nil
}
func (h storageJSON) MarshalText() ([]byte, error) {
return hexutil.Bytes(h[:]).MarshalText()
}
// GenesisMismatchError is raised when trying to overwrite an existing
// genesis block with an incompatible one.
type GenesisMismatchError struct {
Stored, New common.Hash
}
func (e *GenesisMismatchError) Error() string {
return fmt.Sprintf("database already contains an incompatible genesis block (have %x, new %x)", e.Stored[:8], e.New[:8])
}
func (g *Genesis) configOrDefault(ghash common.Hash) *params.ChainConfig {
switch {
case g != nil:
return g.Config
default:
return params.AllProtocolChanges
}
}
// ToBlock creates the genesis block and writes state of a genesis specification
// to the given database (or discards it if nil).
func (g *Genesis) ToBlock(db ethdb.Database) *types.Block {
if db == nil {
utils.Logger().Error().Msg("db should be initialized")
os.Exit(1)
}
statedb, _ := state.New(common.Hash{}, state.NewDatabase(db))
for addr, account := range g.Alloc {
statedb.AddBalance(addr, account.Balance)
statedb.SetCode(addr, account.Code)
statedb.SetNonce(addr, account.Nonce)
for key, value := range account.Storage {
statedb.SetState(addr, key, value)
}
}
root := statedb.IntermediateRoot(false)
shardStateBytes, err := shard.EncodeWrapper(g.ShardState, false)
if err != nil {
utils.Logger().Error().Msg("failed to rlp-serialize genesis shard state")
os.Exit(1)
}
head := g.Factory.NewHeader(common.Big0).With().
Number(new(big.Int).SetUint64(g.Number)).
ShardID(g.ShardID).
Time(new(big.Int).SetUint64(g.Timestamp)).
ParentHash(g.ParentHash).
Extra(g.ExtraData).
GasLimit(g.GasLimit).
GasUsed(g.GasUsed).
MixDigest(g.Mixhash).
Coinbase(g.Coinbase).
Root(root).
ShardStateHash(g.ShardStateHash).
ShardState(shardStateBytes).
Header()
statedb.Commit(false)
statedb.Database().TrieDB().Commit(root, true)
return types.NewBlock(head, nil, nil, nil, nil, nil)
}
// Commit writes the block and state of a genesis specification to the database.
// The block is committed as the canonical head block.
func (g *Genesis) Commit(db ethdb.Database) (*types.Block, error) {
block := g.ToBlock(db)
if block.Number().Sign() != 0 {
return nil, fmt.Errorf("can't commit genesis block with number > 0")
}
if err := rawdb.WriteBlock(db, block); err != nil {
return nil, err
}
if err := rawdb.WriteReceipts(db, block.Hash(), block.NumberU64(), nil); err != nil {
return nil, err
}
if err := rawdb.WriteCanonicalHash(db, block.Hash(), block.NumberU64()); err != nil {
return nil, err
}
if err := rawdb.WriteHeadBlockHash(db, block.Hash()); err != nil {
return nil, err
}
if err := rawdb.WriteHeadHeaderHash(db, block.Hash()); err != nil {
return nil, err
}
err := rawdb.WriteShardStateBytes(db, block.Header().Epoch(), block.Header().ShardState())
if err != nil {
utils.Logger().Error().Err(err).Msg("Failed to store genesis shard state")
}
config := g.Config
if config == nil {
config = params.AllProtocolChanges
}
rawdb.WriteChainConfig(db, block.Hash(), config)
return block, nil
}
// MustCommit writes the genesis block and state to db, panicking on error.
// The block is committed as the canonical head block.
func (g *Genesis) MustCommit(db ethdb.Database) *types.Block {
block, err := g.Commit(db)
if err != nil {
panic(err)
}
rawdb.WriteBlockRewardAccumulator(db, big.NewInt(0), 0)
data, err := rlp.EncodeToBytes(slash.Records{})
if err != nil {
panic(err)
}
if err := rawdb.WritePendingSlashingCandidates(db, data); err != nil {
panic(err)
}
return block
}
// GetGenesisSpec for a given shard
func GetGenesisSpec(shardID uint32) *Genesis {
if shard.Schedule.GetNetworkID() == shardingconfig.MainNet {
return NewGenesisSpec(nodeconfig.Mainnet, shardID)
}
if shard.Schedule.GetNetworkID() == shardingconfig.LocalNet {
return NewGenesisSpec(nodeconfig.Localnet, shardID)
}
return NewGenesisSpec(nodeconfig.Testnet, shardID)
}
// GetInitialFunds for a given shard
func GetInitialFunds(shardID uint32) *big.Int {
spec, total := GetGenesisSpec(shardID), big.NewInt(0)
for _, account := range spec.Alloc {
total = new(big.Int).Add(account.Balance, total)
}
return total
}