package client // DONTCOVER import ( "bufio" "encoding/json" "fmt" "net" "os" "path/filepath" ethcrypto "github.com/ethereum/go-ethereum/crypto" "github.com/spf13/cobra" tmconfig "github.com/tendermint/tendermint/config" tmcrypto "github.com/tendermint/tendermint/crypto" tmos "github.com/tendermint/tendermint/libs/os" tmrand "github.com/tendermint/tendermint/libs/rand" tmtypes "github.com/tendermint/tendermint/types" tmtime "github.com/tendermint/tendermint/types/time" "github.com/cosmos/cosmos-sdk/client/flags" clientkeys "github.com/cosmos/cosmos-sdk/client/keys" "github.com/cosmos/cosmos-sdk/codec" "github.com/cosmos/cosmos-sdk/crypto/keys" "github.com/cosmos/cosmos-sdk/server" srvconfig "github.com/cosmos/cosmos-sdk/server/config" sdk "github.com/cosmos/cosmos-sdk/types" "github.com/cosmos/cosmos-sdk/types/module" authexported "github.com/cosmos/cosmos-sdk/x/auth/exported" authtypes "github.com/cosmos/cosmos-sdk/x/auth/types" "github.com/cosmos/cosmos-sdk/x/crisis" "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" "github.com/cosmos/cosmos-sdk/x/mint" stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types" "github.com/cosmos/ethermint/crypto" "github.com/cosmos/ethermint/types" evmtypes "github.com/cosmos/ethermint/x/evm/types" ) var ( flagNodeDirPrefix = "node-dir-prefix" flagNumValidators = "v" flagOutputDir = "output-dir" flagNodeDaemonHome = "node-daemon-home" flagNodeCLIHome = "node-cli-home" flagStartingIPAddress = "starting-ip-address" flagCoinDenom = "coin-denom" flagKeyAlgo = "algo" ) const nodeDirPerm = 0755 // TestnetCmd initializes all files for tendermint testnet and application func TestnetCmd(ctx *server.Context, cdc *codec.Codec, mbm module.BasicManager, genAccIterator authtypes.GenesisAccountIterator, ) *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 --starting-ip-address 192.168.10.2", RunE: func(cmd *cobra.Command, _ []string) error { config := ctx.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) nodeCLIHome, _ := cmd.Flags().GetString(flagNodeCLIHome) startingIPAddress, _ := cmd.Flags().GetString(flagStartingIPAddress) numValidators, _ := cmd.Flags().GetInt(flagNumValidators) coinDenom, _ := cmd.Flags().GetString(flagCoinDenom) algo, _ := cmd.Flags().GetString(flagKeyAlgo) return InitTestnet( cmd, config, cdc, mbm, genAccIterator, outputDir, chainID, coinDenom, minGasPrices, nodeDirPrefix, nodeDaemonHome, nodeCLIHome, startingIPAddress, keyringBackend, algo, numValidators, ) }, } cmd.Flags().Int(flagNumValidators, 4, "Number of validators to initialize the testnet with") cmd.Flags().StringP(flagOutputDir, "o", "./build", "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().String(flagNodeCLIHome, "ethermintcli", "Home directory of the node's cli configuration") cmd.Flags().String(flagStartingIPAddress, "192.168.0.1", "Starting IP address (192.168.0.1 results in persistent peers list ID0@192.168.0.1:46656, ID1@192.168.0.2:46656, ...)") cmd.Flags().String(flags.FlagChainID, "", "genesis file chain-id, if left blank will be randomly created") cmd.Flags().String(flagCoinDenom, types.AttoPhoton, "Coin denomination used for staking, governance, mint, crisis and evm parameters") cmd.Flags().String(server.FlagMinGasPrices, fmt.Sprintf("0.000006%s", types.AttoPhoton), "Minimum gas prices to accept for transactions; All fees in a tx must meet this minimum (e.g. 0.01aphoton,0.001stake)") cmd.Flags().String(flags.FlagKeyringBackend, flags.DefaultKeyringBackend, "Select keyring's backend (os|file|test)") cmd.Flags().String(flagKeyAlgo, string(crypto.EthSecp256k1), "Key signing algorithm to generate keys for") return cmd } // InitTestnet initializes the testnet configuration func InitTestnet( cmd *cobra.Command, config *tmconfig.Config, cdc *codec.Codec, mbm module.BasicManager, genAccIterator authtypes.GenesisAccountIterator, outputDir, chainID, coinDenom, minGasPrices, nodeDirPrefix, nodeDaemonHome, nodeCLIHome, startingIPAddress, keyringBackend, algo string, numValidators int, ) error { if chainID == "" { chainID = fmt.Sprintf("%d", tmrand.Int63()) } if err := sdk.ValidateDenom(coinDenom); err != nil { return err } nodeIDs := make([]string, numValidators) valPubKeys := make([]tmcrypto.PubKey, numValidators) simappConfig := srvconfig.DefaultConfig() simappConfig.MinGasPrices = minGasPrices var ( genAccounts []authexported.GenesisAccount 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) clientDir := filepath.Join(outputDir, nodeDirName, nodeCLIHome) gentxsDir := filepath.Join(outputDir, "gentxs") config.SetRoot(nodeDir) config.RPC.ListenAddress = "tcp://0.0.0.0:26657" if err := os.MkdirAll(filepath.Join(nodeDir, "config"), nodeDirPerm); err != nil { _ = os.RemoveAll(outputDir) return err } if err := os.MkdirAll(clientDir, nodeDirPerm); err != nil { _ = os.RemoveAll(outputDir) return err } config.Moniker = nodeDirName ip, err := getIP(i, startingIPAddress) if err != nil { _ = os.RemoveAll(outputDir) return err } nodeIDs[i], valPubKeys[i], err = genutil.InitializeNodeValidatorFiles(config) if err != nil { _ = os.RemoveAll(outputDir) return err } memo := fmt.Sprintf("%s@%s:26656", nodeIDs[i], ip) genFiles = append(genFiles, config.GenesisFile()) kb, err := keys.NewKeyring( sdk.KeyringServiceName(), keyringBackend, clientDir, inBuf, crypto.EthSecp256k1Options()..., ) if err != nil { return err } cmd.Printf( "Password for account '%s' :\n", nodeDirName, ) keyPass := clientkeys.DefaultKeyPass addr, secret, err := GenerateSaveCoinKey(kb, nodeDirName, keyPass, true, keys.SigningAlgo(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"), clientDir, cliPrint); err != nil { return err } accStakingTokens := sdk.TokensFromConsensusPower(5000) coins := sdk.NewCoins( sdk.NewCoin(coinDenom, accStakingTokens), ) genAccounts = append(genAccounts, types.EthAccount{ BaseAccount: authtypes.NewBaseAccount(addr, coins, nil, 0, 0), CodeHash: ethcrypto.Keccak256(nil), }) valTokens := sdk.TokensFromConsensusPower(100) msg := stakingtypes.NewMsgCreateValidator( sdk.ValAddress(addr), valPubKeys[i], sdk.NewCoin(coinDenom, valTokens), stakingtypes.NewDescription(nodeDirName, "", "", "", ""), stakingtypes.NewCommissionRates(sdk.OneDec(), sdk.OneDec(), sdk.OneDec()), sdk.OneInt(), ) tx := authtypes.NewStdTx([]sdk.Msg{msg}, authtypes.StdFee{}, []authtypes.StdSignature{}, memo) //nolint:staticcheck // SA1019: authtypes.StdFee is deprecated txBldr := authtypes.NewTxBuilderFromCLI(inBuf).WithChainID(chainID).WithMemo(memo).WithKeybase(kb) signedTx, err := txBldr.SignStdTx(nodeDirName, clientkeys.DefaultKeyPass, tx, false) if err != nil { _ = os.RemoveAll(outputDir) return err } txBytes, err := cdc.MarshalJSON(signedTx) if err != nil { _ = os.RemoveAll(outputDir) return err } // gather gentxs folder if err := writeFile(fmt.Sprintf("%v.json", nodeDirName), gentxsDir, txBytes); err != nil { _ = os.RemoveAll(outputDir) return err } srvconfig.WriteConfigFile(filepath.Join(nodeDir, "config/app.toml"), simappConfig) } if err := initGenFiles(cdc, mbm, chainID, coinDenom, genAccounts, genFiles, numValidators); err != nil { return err } err := collectGenFiles( cdc, config, chainID, nodeIDs, valPubKeys, numValidators, outputDir, nodeDirPrefix, nodeDaemonHome, genAccIterator, ) if err != nil { return err } cmd.PrintErrf("Successfully initialized %d node directories\n", numValidators) return nil } func initGenFiles( cdc *codec.Codec, mbm module.BasicManager, chainID, coinDenom string, genAccounts []authexported.GenesisAccount, genFiles []string, numValidators int, ) error { appGenState := mbm.DefaultGenesis() // set the accounts in the genesis state var authGenState authtypes.GenesisState cdc.MustUnmarshalJSON(appGenState[authtypes.ModuleName], &authGenState) authGenState.Accounts = genAccounts appGenState[authtypes.ModuleName] = cdc.MustMarshalJSON(authGenState) var stakingGenState stakingtypes.GenesisState cdc.MustUnmarshalJSON(appGenState[stakingtypes.ModuleName], &stakingGenState) stakingGenState.Params.BondDenom = coinDenom appGenState[stakingtypes.ModuleName] = cdc.MustMarshalJSON(stakingGenState) var govGenState govtypes.GenesisState cdc.MustUnmarshalJSON(appGenState[govtypes.ModuleName], &govGenState) govGenState.DepositParams.MinDeposit[0].Denom = coinDenom appGenState[govtypes.ModuleName] = cdc.MustMarshalJSON(govGenState) var mintGenState mint.GenesisState cdc.MustUnmarshalJSON(appGenState[mint.ModuleName], &mintGenState) mintGenState.Params.MintDenom = coinDenom appGenState[mint.ModuleName] = cdc.MustMarshalJSON(mintGenState) var crisisGenState crisis.GenesisState cdc.MustUnmarshalJSON(appGenState[crisis.ModuleName], &crisisGenState) crisisGenState.ConstantFee.Denom = coinDenom appGenState[crisis.ModuleName] = cdc.MustMarshalJSON(crisisGenState) var evmGenState evmtypes.GenesisState cdc.MustUnmarshalJSON(appGenState[evmtypes.ModuleName], &evmGenState) evmGenState.Params.EvmDenom = coinDenom appGenState[evmtypes.ModuleName] = cdc.MustMarshalJSON(evmGenState) appGenStateJSON, err := codec.MarshalJSONIndent(cdc, appGenState) if err != nil { return err } genDoc := tmtypes.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 } // GenerateSaveCoinKey returns the address of a public key, along with the secret // phrase to recover the private key. func GenerateSaveCoinKey(keybase keys.Keybase, keyName, keyPass string, overwrite bool, algo keys.SigningAlgo) (sdk.AccAddress, string, error) { // ensure no overwrite if !overwrite { _, err := keybase.Get(keyName) if err == nil { return sdk.AccAddress([]byte{}), "", fmt.Errorf( "key already exists, overwrite is disabled") } } // generate a private key, with recovery phrase info, secret, err := keybase.CreateMnemonic(keyName, keys.English, keyPass, algo) if err != nil { return sdk.AccAddress([]byte{}), "", err } return sdk.AccAddress(info.GetPubKey().Address()), secret, nil } func collectGenFiles( cdc *codec.Codec, config *tmconfig.Config, chainID string, nodeIDs []string, valPubKeys []tmcrypto.PubKey, numValidators int, outputDir, nodeDirPrefix, nodeDaemonHome string, genAccIterator authtypes.GenesisAccountIterator, ) 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") config.Moniker = nodeDirName config.SetRoot(nodeDir) nodeID, valPubKey := nodeIDs[i], valPubKeys[i] initCfg := genutiltypes.NewInitConfig(chainID, gentxsDir, nodeID, nodeID, valPubKey) genDoc, err := tmtypes.GenesisDocFromFile(config.GenesisFile()) if err != nil { return err } nodeAppState, err := genutil.GenAppStateFromConfig(cdc, config, initCfg, *genDoc, genAccIterator) if err != nil { return err } if appState == nil { // set the canonical application state (they should not differ) appState = nodeAppState } genFile := config.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 }