package client // DONTCOVER import ( "bufio" "encoding/json" "errors" "fmt" "log" "net" "os" "path/filepath" cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types" ethcrypto "github.com/ethereum/go-ethereum/crypto" "github.com/spf13/cobra" tmconfig "github.com/tendermint/tendermint/config" tmos "github.com/tendermint/tendermint/libs/os" tmrand "github.com/tendermint/tendermint/libs/rand" "github.com/tendermint/tendermint/types" tmtime "github.com/tendermint/tendermint/types/time" "github.com/cosmos/cosmos-sdk/client" "github.com/cosmos/cosmos-sdk/client/flags" "github.com/cosmos/cosmos-sdk/client/tx" "github.com/cosmos/cosmos-sdk/server" sdk "github.com/cosmos/cosmos-sdk/types" "github.com/cosmos/cosmos-sdk/types/module" authtypes "github.com/cosmos/cosmos-sdk/x/auth/types" banktypes "github.com/cosmos/cosmos-sdk/x/bank/types" crisistypes "github.com/cosmos/cosmos-sdk/x/crisis/types" "github.com/cosmos/cosmos-sdk/x/genutil" genutiltypes "github.com/cosmos/cosmos-sdk/x/genutil/types" govtypes "github.com/cosmos/cosmos-sdk/x/gov/types" mintypes "github.com/cosmos/cosmos-sdk/x/mint/types" stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types" "github.com/cosmos/cosmos-sdk/crypto/keyring" "github.com/cosmos/ethermint/crypto/hd" chaintypes "github.com/cosmos/ethermint/types" evmtypes "github.com/cosmos/ethermint/x/evm/types" "github.com/cosmos/ethermint/cmd/ethermintd/config" ) var ( flagNodeDirPrefix = "node-dir-prefix" flagNumValidators = "v" flagOutputDir = "output-dir" flagNodeDaemonHome = "node-daemon-home" flagCoinDenom = "coin-denom" flagIPAddrs = "ip-addresses" ) const nodeDirPerm = 0755 // TestnetCmd initializes all files for tendermint testnet and application func TestnetCmd( mbm module.BasicManager, genBalancesIterator banktypes.GenesisBalancesIterator, ) *cobra.Command { cmd := &cobra.Command{ Use: "testnet", Short: "Initialize files for a Ethermint testnet", Long: `testnet will create "v" number of directories and populate each with necessary files (private validator, genesis, config, etc.). Note, strict routability for addresses is turned off in the config file.`, Example: "ethermintd testnet --v 4 --keyring-backend test --output-dir ./output --ip-addresses 192.168.10.2", RunE: func(cmd *cobra.Command, _ []string) error { clientCtx := client.GetClientContextFromCmd(cmd) serverCtx := server.GetServerContextFromCmd(cmd) config := serverCtx.Config outputDir, _ := cmd.Flags().GetString(flagOutputDir) keyringBackend, _ := cmd.Flags().GetString(flags.FlagKeyringBackend) chainID, _ := cmd.Flags().GetString(flags.FlagChainID) minGasPrices, _ := cmd.Flags().GetString(server.FlagMinGasPrices) nodeDirPrefix, _ := cmd.Flags().GetString(flagNodeDirPrefix) nodeDaemonHome, _ := cmd.Flags().GetString(flagNodeDaemonHome) ipAddresses, _ := cmd.Flags().GetStringSlice(flagIPAddrs) numValidators, _ := cmd.Flags().GetInt(flagNumValidators) algo, _ := cmd.Flags().GetString(flags.FlagKeyAlgorithm) coinDenom, _ := cmd.Flags().GetString(flagCoinDenom) if len(ipAddresses) == 0 { return errors.New("IP address list cannot be empty") } return InitTestnet( clientCtx, cmd, config, mbm, genBalancesIterator, outputDir, chainID, coinDenom, minGasPrices, nodeDirPrefix, nodeDaemonHome, keyringBackend, algo, ipAddresses, numValidators, ) }, } cmd.Flags().Int(flagNumValidators, 4, "Number of validators to initialize the testnet with") cmd.Flags().StringP(flagOutputDir, "o", "./mytestnet", "Directory to store initialization data for the testnet") cmd.Flags().String(flagNodeDirPrefix, "node", "Prefix the directory name for each node with (node results in node0, node1, ...)") cmd.Flags().String(flagNodeDaemonHome, "ethermintd", "Home directory of the node's daemon configuration") cmd.Flags().StringSlice(flagIPAddrs, []string{"192.168.0.1"}, "List of IP addresses to use (i.e. `192.168.0.1,172.168.0.1` results in persistent peers list ID0@192.168.0.1:46656, ID1@172.168.0.1)") cmd.Flags().String(flags.FlagChainID, "", "genesis file chain-id, if left blank will be randomly created") cmd.Flags().String(server.FlagMinGasPrices, "", "Minimum gas prices to accept for transactions; All fees in a tx must meet this minimum (e.g. 0.01inj,0.001stake)") cmd.Flags().String(flags.FlagKeyringBackend, flags.DefaultKeyringBackend, "Select keyring's backend (os|file|test)") cmd.Flags().String(flags.FlagKeyAlgorithm, string(hd.EthSecp256k1Type), "Key signing algorithm to generate keys for") cmd.Flags().String(flagCoinDenom, chaintypes.AttoPhoton, "Coin denomination used for staking, governance, mint, crisis and evm parameters") return cmd } // InitTestnet initializes the testnet configuration func InitTestnet( clientCtx client.Context, cmd *cobra.Command, nodeConfig *tmconfig.Config, mbm module.BasicManager, genBalIterator banktypes.GenesisBalancesIterator, outputDir, chainID, coinDenom, minGasPrices, nodeDirPrefix, nodeDaemonHome, keyringBackend, algoStr string, ipAddresses []string, numValidators int, ) error { if chainID == "" { chainID = fmt.Sprintf("ethermint-%d", tmrand.Int63n(9999999999999)+1) } if !chaintypes.IsValidChainID(chainID) { return fmt.Errorf("invalid chain-id: %s", chainID) } if err := sdk.ValidateDenom(coinDenom); err != nil { return err } if len(ipAddresses) != 0 { numValidators = len(ipAddresses) } nodeIDs := make([]string, numValidators) valPubKeys := make([]cryptotypes.PubKey, numValidators) appConfig := config.DefaultConfig() appConfig.MinGasPrices = minGasPrices appConfig.API.Enable = true appConfig.Telemetry.Enabled = true appConfig.Telemetry.PrometheusRetentionTime = 60 appConfig.Telemetry.EnableHostnameLabel = false appConfig.Telemetry.GlobalLabels = [][]string{{"chain_id", chainID}} var ( genAccounts []authtypes.GenesisAccount genBalances []banktypes.Balance genFiles []string ) inBuf := bufio.NewReader(cmd.InOrStdin()) // generate private keys, node IDs, and initial transactions for i := 0; i < numValidators; i++ { nodeDirName := fmt.Sprintf("%s%d", nodeDirPrefix, i) nodeDir := filepath.Join(outputDir, nodeDirName, nodeDaemonHome) gentxsDir := filepath.Join(outputDir, "gentxs") nodeConfig.SetRoot(nodeDir) nodeConfig.RPC.ListenAddress = "tcp://0.0.0.0:26657" if err := os.MkdirAll(filepath.Join(nodeDir, "config"), nodeDirPerm); err != nil { _ = os.RemoveAll(outputDir) return err } nodeConfig.Moniker = nodeDirName var ( ip string err error ) if len(ipAddresses) == 1 { ip, err = getIP(i, ipAddresses[0]) if err != nil { _ = os.RemoveAll(outputDir) return err } } else { ip = ipAddresses[i] } nodeIDs[i], valPubKeys[i], err = genutil.InitializeNodeValidatorFiles(nodeConfig) if err != nil { _ = os.RemoveAll(outputDir) return err } memo := fmt.Sprintf("%s@%s:26656", nodeIDs[i], ip) genFiles = append(genFiles, nodeConfig.GenesisFile()) kb, err := keyring.New( sdk.KeyringServiceName(), keyringBackend, nodeDir, inBuf, hd.EthSecp256k1Option(), ) if err != nil { return err } keyringAlgos, _ := kb.SupportedAlgorithms() algo, err := keyring.NewSigningAlgoFromString(algoStr, keyringAlgos) if err != nil { return err } addr, secret, err := server.GenerateSaveCoinKey(kb, nodeDirName, true, algo) if err != nil { _ = os.RemoveAll(outputDir) return err } info := map[string]string{"secret": secret} cliPrint, err := json.Marshal(info) if err != nil { return err } // save private key seed words if err := writeFile(fmt.Sprintf("%v.json", "key_seed"), nodeDir, cliPrint); err != nil { return err } accStakingTokens := sdk.TokensFromConsensusPower(5000) coins := sdk.NewCoins( sdk.NewCoin(coinDenom, accStakingTokens), ) genBalances = append(genBalances, banktypes.Balance{Address: addr.String(), Coins: coins}) genAccounts = append(genAccounts, &chaintypes.EthAccount{ BaseAccount: authtypes.NewBaseAccount(addr, nil, 0, 0), CodeHash: ethcrypto.Keccak256(nil), }) valTokens := sdk.TokensFromConsensusPower(100) createValMsg, err := stakingtypes.NewMsgCreateValidator( sdk.ValAddress(addr), valPubKeys[i], sdk.NewCoin(coinDenom, valTokens), stakingtypes.NewDescription(nodeDirName, "", "", "", ""), stakingtypes.NewCommissionRates(sdk.OneDec(), sdk.OneDec(), sdk.OneDec()), sdk.OneInt(), ) if err != nil { return err } txBuilder := clientCtx.TxConfig.NewTxBuilder() if err := txBuilder.SetMsgs(createValMsg); err != nil { return err } txBuilder.SetMemo(memo) txFactory := tx.Factory{} txFactory = txFactory. WithChainID(chainID). WithMemo(memo). WithKeybase(kb). WithTxConfig(clientCtx.TxConfig) if err := tx.Sign(txFactory, nodeDirName, txBuilder, false); err != nil { return err } txBz, err := clientCtx.TxConfig.TxJSONEncoder()(txBuilder.GetTx()) if err != nil { return err } if err := writeFile(fmt.Sprintf("%v.json", nodeDirName), gentxsDir, txBz); err != nil { return err } config.WriteConfigFile(filepath.Join(nodeDir, "config/app.toml"), appConfig) } if err := initGenFiles(clientCtx, mbm, chainID, coinDenom, genAccounts, genBalances, genFiles, numValidators); err != nil { return err } err := collectGenFiles( clientCtx, nodeConfig, chainID, nodeIDs, valPubKeys, numValidators, outputDir, nodeDirPrefix, nodeDaemonHome, genBalIterator, ) if err != nil { return err } cmd.PrintErrf("Successfully initialized %d node directories\n", numValidators) return nil } func initGenFiles( clientCtx client.Context, mbm module.BasicManager, chainID, coinDenom string, genAccounts []authtypes.GenesisAccount, genBalances []banktypes.Balance, genFiles []string, numValidators int, ) error { appGenState := mbm.DefaultGenesis(clientCtx.JSONMarshaler) // set the accounts in the genesis state var authGenState authtypes.GenesisState clientCtx.JSONMarshaler.MustUnmarshalJSON(appGenState[authtypes.ModuleName], &authGenState) accounts, err := authtypes.PackAccounts(genAccounts) if err != nil { return err } authGenState.Accounts = accounts appGenState[authtypes.ModuleName] = clientCtx.JSONMarshaler.MustMarshalJSON(&authGenState) // set the balances in the genesis state var bankGenState banktypes.GenesisState clientCtx.JSONMarshaler.MustUnmarshalJSON(appGenState[banktypes.ModuleName], &bankGenState) bankGenState.Balances = genBalances appGenState[banktypes.ModuleName] = clientCtx.JSONMarshaler.MustMarshalJSON(&bankGenState) var stakingGenState stakingtypes.GenesisState clientCtx.JSONMarshaler.MustUnmarshalJSON(appGenState[stakingtypes.ModuleName], &stakingGenState) stakingGenState.Params.BondDenom = coinDenom appGenState[stakingtypes.ModuleName] = clientCtx.JSONMarshaler.MustMarshalJSON(&stakingGenState) var govGenState govtypes.GenesisState clientCtx.JSONMarshaler.MustUnmarshalJSON(appGenState[govtypes.ModuleName], &govGenState) govGenState.DepositParams.MinDeposit[0].Denom = coinDenom appGenState[govtypes.ModuleName] = clientCtx.JSONMarshaler.MustMarshalJSON(&govGenState) var mintGenState mintypes.GenesisState clientCtx.JSONMarshaler.MustUnmarshalJSON(appGenState[mintypes.ModuleName], &mintGenState) mintGenState.Params.MintDenom = coinDenom appGenState[mintypes.ModuleName] = clientCtx.JSONMarshaler.MustMarshalJSON(&mintGenState) var crisisGenState crisistypes.GenesisState clientCtx.JSONMarshaler.MustUnmarshalJSON(appGenState[crisistypes.ModuleName], &crisisGenState) crisisGenState.ConstantFee.Denom = coinDenom appGenState[crisistypes.ModuleName] = clientCtx.JSONMarshaler.MustMarshalJSON(&crisisGenState) var evmGenState evmtypes.GenesisState clientCtx.JSONMarshaler.MustUnmarshalJSON(appGenState[evmtypes.ModuleName], &evmGenState) evmGenState.Params.EvmDenom = coinDenom appGenState[evmtypes.ModuleName] = clientCtx.JSONMarshaler.MustMarshalJSON(&evmGenState) appGenStateJSON, err := json.MarshalIndent(appGenState, "", " ") if err != nil { return err } genDoc := types.GenesisDoc{ ChainID: chainID, AppState: appGenStateJSON, Validators: nil, } // generate empty genesis files for each validator and save for i := 0; i < numValidators; i++ { if err := genDoc.SaveAs(genFiles[i]); err != nil { return err } } return nil } func collectGenFiles( clientCtx client.Context, nodeConfig *tmconfig.Config, chainID string, nodeIDs []string, valPubKeys []cryptotypes.PubKey, numValidators int, outputDir, nodeDirPrefix, nodeDaemonHome string, genBalIterator banktypes.GenesisBalancesIterator, ) error { var appState json.RawMessage genTime := tmtime.Now() for i := 0; i < numValidators; i++ { nodeDirName := fmt.Sprintf("%s%d", nodeDirPrefix, i) nodeDir := filepath.Join(outputDir, nodeDirName, nodeDaemonHome) gentxsDir := filepath.Join(outputDir, "gentxs") nodeConfig.Moniker = nodeDirName nodeConfig.SetRoot(nodeDir) nodeID, valPubKey := nodeIDs[i], valPubKeys[i] initCfg := genutiltypes.NewInitConfig(chainID, gentxsDir, nodeID, valPubKey) genDoc, err := types.GenesisDocFromFile(nodeConfig.GenesisFile()) if err != nil { return err } nodeAppState, err := genutil.GenAppStateFromConfig(clientCtx.JSONMarshaler, clientCtx.TxConfig, nodeConfig, initCfg, *genDoc, genBalIterator) if err != nil { return err } if appState == nil { // set the canonical application state (they should not differ) appState = nodeAppState } genFile := nodeConfig.GenesisFile() // overwrite each validator's genesis file to have a canonical genesis time if err := genutil.ExportGenesisFileWithTime(genFile, chainID, nil, appState, genTime); err != nil { return err } } return nil } func getIP(i int, startingIPAddr string) (ip string, err error) { if len(startingIPAddr) == 0 { ip, err = server.ExternalIP() if err != nil { return "", err } return ip, nil } return calculateIP(startingIPAddr, i) } func calculateIP(ip string, i int) (string, error) { ipv4 := net.ParseIP(ip).To4() if ipv4 == nil { return "", fmt.Errorf("%v: non ipv4 address", ip) } for j := 0; j < i; j++ { ipv4[3]++ } return ipv4.String(), nil } func writeFile(name string, dir string, contents []byte) error { writePath := filepath.Join(dir) file := filepath.Join(writePath, name) err := tmos.EnsureDir(writePath, 0755) if err != nil { return err } err = tmos.WriteFile(file, contents, 0644) if err != nil { return err } return nil } func appendToFile(name string, dir string, contents []byte) error { writePath := filepath.Join(dir) file := filepath.Join(writePath, name) err := tmos.EnsureDir(writePath, 0755) if err != nil { return err } if _, err = os.Stat(file); err == nil { err = os.Chmod(file, 0777) if err != nil { fmt.Println(err) return err } } f, err := os.OpenFile(file, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644) if err != nil { log.Println(err) return err } defer f.Close() _, err = f.Write(contents) if err != nil { log.Println(err) return err } f.Write([]byte("\n")) if err != nil { log.Println(err) return err } return nil }