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7.9 KiB

package main
import (
"bufio"
"encoding/hex"
"errors"
"fmt"
"io"
"os"
"strings"
"github.com/tendermint/abci/client"
"github.com/tendermint/abci/types"
. "github.com/tendermint/go-common"
"github.com/urfave/cli"
)
//structure for data passed to print response
// variables must be exposed for JSON to read
type response struct {
Res types.Result
Data string
PrintCode bool
Code string
}
func newResponse(res types.Result, data string, printCode bool) *response {
rsp := &response{
Res: res,
Data: data,
PrintCode: printCode,
Code: "",
}
if printCode {
rsp.Code = res.Code.String()
}
return rsp
}
// client is a global variable so it can be reused by the console
var client abcicli.Client
func main() {
//workaround for the cli library (https://github.com/urfave/cli/issues/565)
cli.OsExiter = func(_ int) {}
app := cli.NewApp()
app.Name = "abci-cli"
app.Usage = "abci-cli [command] [args...]"
app.Version = "0.3.0" // hex handling
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "address",
Value: "tcp://127.0.0.1:46658",
Usage: "address of application socket",
},
cli.StringFlag{
Name: "abci",
Value: "socket",
Usage: "socket or grpc",
},
cli.BoolFlag{
Name: "verbose",
Usage: "print the command and results as if it were a console session",
},
}
app.Commands = []cli.Command{
{
Name: "batch",
Usage: "Run a batch of abci commands against an application",
Action: func(c *cli.Context) error {
return cmdBatch(app, c)
},
},
{
Name: "console",
Usage: "Start an interactive abci console for multiple commands",
Action: func(c *cli.Context) error {
return cmdConsole(app, c)
},
},
{
Name: "echo",
Usage: "Have the application echo a message",
Action: func(c *cli.Context) error {
return cmdEcho(c)
},
},
{
Name: "info",
Usage: "Get some info about the application",
Action: func(c *cli.Context) error {
return cmdInfo(c)
},
},
{
Name: "set_option",
Usage: "Set an option on the application",
Action: func(c *cli.Context) error {
return cmdSetOption(c)
},
},
{
Name: "deliver_tx",
Usage: "Deliver a new tx to application",
Action: func(c *cli.Context) error {
return cmdDeliverTx(c)
},
},
{
Name: "check_tx",
Usage: "Validate a tx",
Action: func(c *cli.Context) error {
return cmdCheckTx(c)
},
},
{
Name: "commit",
Usage: "Commit the application state and return the Merkle root hash",
Action: func(c *cli.Context) error {
return cmdCommit(c)
},
},
{
Name: "query",
Usage: "Query application state",
Action: func(c *cli.Context) error {
return cmdQuery(c)
},
},
}
app.Before = before
err := app.Run(os.Args)
if err != nil {
Exit(err.Error())
}
}
func before(c *cli.Context) error {
if client == nil {
var err error
client, err = abcicli.NewClient(c.GlobalString("address"), c.GlobalString("abci"), false)
if err != nil {
Exit(err.Error())
}
}
return nil
}
// badCmd is called when we invoke with an invalid first argument (just for console for now)
func badCmd(c *cli.Context, cmd string) {
fmt.Println("Unknown command:", cmd)
fmt.Println("Please try one of the following:")
fmt.Println("")
cli.DefaultAppComplete(c)
}
//Generates new Args array based off of previous call args to maintain flag persistence
func persistentArgs(line []byte) []string {
//generate the arguments to run from orginal os.Args
// to maintain flag arguments
args := os.Args
args = args[:len(args)-1] // remove the previous command argument
if len(line) > 0 { //prevents introduction of extra space leading to argument parse errors
args = append(args, strings.Split(string(line), " ")...)
}
return args
}
//--------------------------------------------------------------------------------
func cmdBatch(app *cli.App, c *cli.Context) error {
bufReader := bufio.NewReader(os.Stdin)
for {
line, more, err := bufReader.ReadLine()
if more {
return errors.New("Input line is too long")
} else if err == io.EOF {
break
} else if len(line) == 0 {
continue
} else if err != nil {
return err
}
args := persistentArgs(line)
app.Run(args) //cli prints error within its func call
}
return nil
}
func cmdConsole(app *cli.App, c *cli.Context) error {
// don't hard exit on mistyped commands (eg. check vs check_tx)
app.CommandNotFound = badCmd
for {
fmt.Printf("\n> ")
bufReader := bufio.NewReader(os.Stdin)
line, more, err := bufReader.ReadLine()
if more {
return errors.New("Input is too long")
} else if err != nil {
return err
}
args := persistentArgs(line)
app.Run(args) //cli prints error within its func call
}
}
// Have the application echo a message
func cmdEcho(c *cli.Context) error {
args := c.Args()
if len(args) != 1 {
return errors.New("Command echo takes 1 argument")
}
res := client.EchoSync(args[0])
rsp := newResponse(res, string(res.Data), false)
printResponse(c, rsp)
return nil
}
// Get some info from the application
func cmdInfo(c *cli.Context) error {
resInfo, err := client.InfoSync()
if err != nil {
return err
}
rsp := newResponse(types.Result{}, string(resInfo.Data), false)
printResponse(c, rsp)
return nil
}
// Set an option on the application
func cmdSetOption(c *cli.Context) error {
args := c.Args()
if len(args) != 2 {
return errors.New("Command set_option takes 2 arguments (key, value)")
}
res := client.SetOptionSync(args[0], args[1])
rsp := newResponse(res, Fmt("%s=%s", args[0], args[1]), false)
printResponse(c, rsp)
return nil
}
// Append a new tx to application
func cmdDeliverTx(c *cli.Context) error {
args := c.Args()
if len(args) != 1 {
return errors.New("Command deliver_tx takes 1 argument")
}
txBytes, err := stringOrHexToBytes(c.Args()[0])
if err != nil {
return err
}
res := client.DeliverTxSync(txBytes)
rsp := newResponse(res, string(res.Data), true)
printResponse(c, rsp)
return nil
}
// Validate a tx
func cmdCheckTx(c *cli.Context) error {
args := c.Args()
if len(args) != 1 {
return errors.New("Command check_tx takes 1 argument")
}
txBytes, err := stringOrHexToBytes(c.Args()[0])
if err != nil {
return err
}
res := client.CheckTxSync(txBytes)
rsp := newResponse(res, string(res.Data), true)
printResponse(c, rsp)
return nil
}
// Get application Merkle root hash
func cmdCommit(c *cli.Context) error {
res := client.CommitSync()
rsp := newResponse(res, Fmt("0x%X", res.Data), false)
printResponse(c, rsp)
return nil
}
// Query application state
func cmdQuery(c *cli.Context) error {
args := c.Args()
if len(args) != 1 {
return errors.New("Command query takes 1 argument")
}
queryBytes, err := stringOrHexToBytes(c.Args()[0])
if err != nil {
return err
}
res := client.QuerySync(queryBytes)
rsp := newResponse(res, string(res.Data), true)
printResponse(c, rsp)
return nil
}
//--------------------------------------------------------------------------------
func printResponse(c *cli.Context, rsp *response) {
verbose := c.GlobalBool("verbose")
if verbose {
fmt.Println(">", c.Command.Name, strings.Join(c.Args(), " "))
}
if rsp.PrintCode {
fmt.Printf("-> code: %s\n", rsp.Code)
}
//if pr.res.Error != "" {
// fmt.Printf("-> error: %s\n", pr.res.Error)
//}
if rsp.Data != "" {
fmt.Printf("-> data: %s\n", rsp.Data)
}
if rsp.Res.Log != "" {
fmt.Printf("-> log: %s\n", rsp.Res.Log)
}
if verbose {
fmt.Println("")
}
}
// NOTE: s is interpreted as a string unless prefixed with 0x
func stringOrHexToBytes(s string) ([]byte, error) {
if len(s) > 2 && strings.ToLower(s[:2]) == "0x" {
b, err := hex.DecodeString(s[2:])
if err != nil {
err = fmt.Errorf("Error decoding hex argument: %s", err.Error())
return nil, err
}
return b, nil
}
if !strings.HasPrefix(s, "\"") || !strings.HasSuffix(s, "\"") {
err := fmt.Errorf("Invalid string arg: \"%s\". Must be quoted or a \"0x\"-prefixed hex string", s)
return nil, err
}
return []byte(s[1 : len(s)-1]), nil
}