The core protocol of WoopChain
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woop/node/node_genesis.go

112 lines
4.6 KiB

package node
import (
"crypto/ecdsa"
"math/big"
"math/rand"
"strings"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/params"
"github.com/harmony-one/harmony/core"
"github.com/harmony-one/harmony/core/vm"
"github.com/harmony-one/harmony/internal/utils/contract"
)
const (
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// FakeAddressNumber is the number of fake address.
FakeAddressNumber = 100
// TotalInitFund is the initial total fund for the contract deployer.
TotalInitFund = 9000000
// InitFreeFundInEther is the initial fund for sample accounts.
InitFreeFundInEther = 1000
)
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// GenesisBlockSetup setups a genesis blockchain.
func (node *Node) GenesisBlockSetup(db ethdb.Database, shardID uint32, isArchival bool) (*core.BlockChain, error) {
// Initialize genesis block and blockchain
// Tests account for txgen to use
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genesisAlloc := node.CreateGenesisAllocWithTestingAddresses(FakeAddressNumber)
// Smart contract deployer account used to deploy protocol-level 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(TotalInitFund)
contractDeployerFunds = contractDeployerFunds.Mul(contractDeployerFunds, big.NewInt(params.Ether))
genesisAlloc[contractDeployerAddress] = core.GenesisAccount{Balance: contractDeployerFunds}
node.ContractDeployerKey = contractDeployerKey
if shardID == 0 {
// Accounts used by validator/nodes to stake and participate in the network.
AddNodeAddressesToGenesisAlloc(genesisAlloc)
}
// TODO: create separate chain config instead of using the same pointer reference
chainConfig := *params.TestChainConfig
chainConfig.ChainID = big.NewInt(int64(shardID)) // Use ChainID as piggybacked ShardID
gspec := core.Genesis{
Config: &chainConfig,
Alloc: genesisAlloc,
ShardID: shardID,
ShardStateHash: core.GetInitShardState().Hash(),
}
// Store genesis block into db.
gspec.MustCommit(db)
cacheConfig := core.CacheConfig{}
if isArchival {
cacheConfig = core.CacheConfig{Disabled: true, TrieNodeLimit: 256 * 1024 * 1024, TrieTimeLimit: 30 * time.Second}
}
return core.NewBlockChain(db, &cacheConfig, gspec.Config, node.Consensus, vm.Config{}, nil)
}
// CreateGenesisAllocWithTestingAddresses create the genesis block allocation that contains deterministically
// generated testing addresses with tokens. This is mostly used for generated simulated transactions in txgen.
// TODO: Remove it later when moving to production.
func (node *Node) CreateGenesisAllocWithTestingAddresses(numAddress int) core.GenesisAlloc {
rand.Seed(0)
len := 1000000
bytes := make([]byte, len)
for i := 0; i < len; i++ {
bytes[i] = byte(rand.Intn(100))
}
reader := strings.NewReader(string(bytes))
genesisAloc := make(core.GenesisAlloc)
for i := 0; i < numAddress; i++ {
testBankKey, _ := ecdsa.GenerateKey(crypto.S256(), reader)
testBankAddress := crypto.PubkeyToAddress(testBankKey.PublicKey)
testBankFunds := big.NewInt(InitFreeFundInEther)
testBankFunds = testBankFunds.Mul(testBankFunds, big.NewInt(params.Ether))
genesisAloc[testBankAddress] = core.GenesisAccount{Balance: testBankFunds}
node.TestBankKeys = append(node.TestBankKeys, testBankKey)
}
return genesisAloc
}
// AddNodeAddressesToGenesisAlloc adds to the genesis block allocation the accounts used for network validators/nodes,
// including the account used by the nodes of the initial beacon chain and later new nodes.
func AddNodeAddressesToGenesisAlloc(genesisAlloc core.GenesisAlloc) {
for _, account := range contract.GenesisAccounts {
testBankFunds := big.NewInt(InitFreeFundInEther)
testBankFunds = testBankFunds.Mul(testBankFunds, big.NewInt(params.Ether))
address := common.HexToAddress(account.Address)
genesisAlloc[address] = core.GenesisAccount{Balance: testBankFunds}
}
for _, account := range contract.NewNodeAccounts {
testBankFunds := big.NewInt(InitFreeFundInEther)
testBankFunds = testBankFunds.Mul(testBankFunds, big.NewInt(params.Ether))
address := common.HexToAddress(account.Address)
genesisAlloc[address] = core.GenesisAccount{Balance: testBankFunds}
}
for _, account := range contract.DemoAccounts {
testBankFunds := big.NewInt(InitFreeFundInEther)
testBankFunds = testBankFunds.Mul(testBankFunds, big.NewInt(params.Ether))
address := common.HexToAddress(account.Address)
genesisAlloc[address] = core.GenesisAccount{Balance: testBankFunds}
}
}