package main
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import (
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"fmt"
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"os"
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"path/filepath"
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"github.com/spf13/cobra"
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"github.com/spf13/viper"
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cmd "github.com/tendermint/tendermint/cmd/tendermint/commands"
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"github.com/tendermint/tendermint/cmd/tendermint/commands/debug"
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cfg "github.com/tendermint/tendermint/config"
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"github.com/tendermint/tendermint/libs/cli"
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tmflags "github.com/tendermint/tendermint/libs/cli/flags"
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"github.com/tendermint/tendermint/libs/log"
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tmos "github.com/tendermint/tendermint/libs/os"
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tmrand "github.com/tendermint/tendermint/libs/rand"
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"github.com/tendermint/tendermint/p2p"
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tmproto "github.com/tendermint/tendermint/proto/tendermint/types"
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cs "github.com/tendermint/tendermint/test/maverick/consensus"
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nd "github.com/tendermint/tendermint/test/maverick/node"
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"github.com/tendermint/tendermint/types"
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tmtime "github.com/tendermint/tendermint/types/time"
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)
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var (
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config = cfg.DefaultConfig()
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logger = log.NewTMLogger(log.NewSyncWriter(os.Stdout))
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misbehaviorFlag = ""
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)
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func init() {
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registerFlagsRootCmd(RootCmd)
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}
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func registerFlagsRootCmd(command *cobra.Command) {
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command.PersistentFlags().String("log_level", config.LogLevel, "Log level")
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}
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func ParseConfig() (*cfg.Config, error) {
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conf := cfg.DefaultConfig()
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err := viper.Unmarshal(conf)
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if err != nil {
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return nil, err
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}
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conf.SetRoot(conf.RootDir)
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cfg.EnsureRoot(conf.RootDir)
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if err = conf.ValidateBasic(); err != nil {
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return nil, fmt.Errorf("error in config file: %v", err)
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}
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return conf, err
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}
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// RootCmd is the root command for Tendermint core.
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var RootCmd = &cobra.Command{
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Use: "maverick",
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Short: "Tendermint Maverick Node",
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Long: "Tendermint Maverick Node for testing with faulty consensus misbehaviors in a testnet. Contains " +
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"all the functionality of a normal node but custom misbehaviors can be injected when running the node " +
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"through a flag. See maverick node --help for how the misbehavior flag is constructured",
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PersistentPreRunE: func(cmd *cobra.Command, args []string) (err error) {
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fmt.Printf("use: %v, args: %v", cmd.Use, cmd.Args)
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config, err = ParseConfig()
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if err != nil {
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return err
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}
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if config.LogFormat == cfg.LogFormatJSON {
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logger = log.NewTMJSONLogger(log.NewSyncWriter(os.Stdout))
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}
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logger, err = tmflags.ParseLogLevel(config.LogLevel, logger, cfg.DefaultLogLevel())
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if err != nil {
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return err
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}
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if viper.GetBool(cli.TraceFlag) {
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logger = log.NewTracingLogger(logger)
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}
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logger = logger.With("module", "main")
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return nil
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},
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}
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func main() {
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rootCmd := RootCmd
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rootCmd.AddCommand(
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ListMisbehaviorCmd,
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cmd.GenValidatorCmd,
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InitFilesCmd,
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cmd.ProbeUpnpCmd,
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cmd.ReplayCmd,
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cmd.ReplayConsoleCmd,
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cmd.ResetAllCmd,
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cmd.ResetPrivValidatorCmd,
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cmd.ShowValidatorCmd,
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cmd.ShowNodeIDCmd,
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cmd.GenNodeKeyCmd,
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cmd.VersionCmd,
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debug.DebugCmd,
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cli.NewCompletionCmd(rootCmd, true),
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)
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nodeCmd := &cobra.Command{
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Use: "node",
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Short: "Run the maverick node",
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RunE: func(command *cobra.Command, args []string) error {
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return startNode(config, logger, misbehaviorFlag)
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},
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}
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cmd.AddNodeFlags(nodeCmd)
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// Create & start node
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rootCmd.AddCommand(nodeCmd)
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// add special flag for misbehaviors
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nodeCmd.Flags().StringVar(
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&misbehaviorFlag,
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"misbehaviors",
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"",
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"Select the misbehaviors of the node (comma-separated, no spaces in between): \n"+
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"e.g. --misbehaviors double-prevote,3\n"+
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"You can also have multiple misbehaviors: e.g. double-prevote,3,no-vote,5")
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cmd := cli.PrepareBaseCmd(rootCmd, "TM", os.ExpandEnv(filepath.Join("$HOME", cfg.DefaultTendermintDir)))
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if err := cmd.Execute(); err != nil {
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panic(err)
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}
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}
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func startNode(config *cfg.Config, logger log.Logger, misbehaviorFlag string) error {
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misbehaviors, err := nd.ParseMisbehaviors(misbehaviorFlag)
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if err != nil {
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return err
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}
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node, err := nd.DefaultNewNode(config, logger, misbehaviors)
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if err != nil {
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return fmt.Errorf("failed to create node: %w", err)
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}
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if err := node.Start(); err != nil {
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return fmt.Errorf("failed to start node: %w", err)
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}
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logger.Info("Started node", "nodeInfo", node.Switch().NodeInfo())
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// Stop upon receiving SIGTERM or CTRL-C.
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tmos.TrapSignal(logger, func() {
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if node.IsRunning() {
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if err := node.Stop(); err != nil {
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logger.Error("unable to stop the node", "error", err)
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}
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}
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})
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// Run forever.
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select {}
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}
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var keyType string
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var InitFilesCmd = &cobra.Command{
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Use: "init",
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Short: "Initialize Tendermint",
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RunE: initFiles,
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}
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func init() {
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InitFilesCmd.Flags().StringVar(&keyType, "key", types.ABCIPubKeyTypeEd25519,
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"Key type to generate privval file with. Options: ed25519, secp256k1")
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}
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func initFiles(cmd *cobra.Command, args []string) error {
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return initFilesWithConfig(config)
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}
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func initFilesWithConfig(config *cfg.Config) error {
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// private validator
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privValKeyFile := config.PrivValidatorKeyFile()
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privValStateFile := config.PrivValidatorStateFile()
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var pv *nd.FilePV
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if tmos.FileExists(privValKeyFile) {
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pv = nd.LoadFilePV(privValKeyFile, privValStateFile)
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logger.Info("Found private validator", "keyFile", privValKeyFile,
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"stateFile", privValStateFile)
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} else {
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pv = nd.GenFilePV(privValKeyFile, privValStateFile)
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pv.Save()
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logger.Info("Generated private validator", "keyFile", privValKeyFile,
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"stateFile", privValStateFile)
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}
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nodeKeyFile := config.NodeKeyFile()
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if tmos.FileExists(nodeKeyFile) {
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logger.Info("Found node key", "path", nodeKeyFile)
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} else {
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if _, err := p2p.LoadOrGenNodeKey(nodeKeyFile); err != nil {
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return err
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}
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logger.Info("Generated node key", "path", nodeKeyFile)
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}
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// genesis file
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genFile := config.GenesisFile()
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if tmos.FileExists(genFile) {
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logger.Info("Found genesis file", "path", genFile)
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} else {
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genDoc := types.GenesisDoc{
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ChainID: fmt.Sprintf("test-chain-%v", tmrand.Str(6)),
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GenesisTime: tmtime.Now(),
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ConsensusParams: types.DefaultConsensusParams(),
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}
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if keyType == "secp256k1" {
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genDoc.ConsensusParams.Validator = tmproto.ValidatorParams{
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PubKeyTypes: []string{types.ABCIPubKeyTypeSecp256k1},
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}
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}
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pubKey, err := pv.GetPubKey()
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if err != nil {
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return fmt.Errorf("can't get pubkey: %w", err)
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}
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genDoc.Validators = []types.GenesisValidator{{
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Address: pubKey.Address(),
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PubKey: pubKey,
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Power: 10,
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}}
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if err := genDoc.SaveAs(genFile); err != nil {
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return err
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}
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logger.Info("Generated genesis file", "path", genFile)
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}
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return nil
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}
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var ListMisbehaviorCmd = &cobra.Command{
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Use: "misbehaviors",
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Short: "Lists possible misbehaviors",
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RunE: listMisbehaviors,
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}
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func listMisbehaviors(cmd *cobra.Command, args []string) error {
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str := "Currently registered misbehaviors: \n"
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for key := range cs.MisbehaviorList {
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str += fmt.Sprintf("- %s\n", key)
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}
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fmt.Println(str)
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return nil
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}
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