lotus/cmd/lotus-shed/jwt.go
2020-08-19 19:21:36 +00:00

90 lines
2.0 KiB
Go

package main
import (
"crypto/rand"
"encoding/hex"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"os"
"github.com/gbrlsnchs/jwt/v3"
"github.com/urfave/cli/v2"
"github.com/filecoin-project/lotus/api/apistruct"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/node/modules"
)
var jwtCmd = &cli.Command{
Name: "jwt",
Usage: "work with lotus jwt secrets and tokens",
Description: `The subcommands of jwt provide helpful tools for working with jwt files without
having to run the lotus daemon.`,
Subcommands: []*cli.Command{
jwtNewCmd,
},
}
var jwtNewCmd = &cli.Command{
Name: "new",
Usage: "create a new jwt secret and token for lotus",
ArgsUsage: "<name>",
Description: `Jwt tokens are used to authenticate api requests to the lotus daemon.
The created jwt token have full privileges and should not be shared.`,
Flags: []cli.Flag{},
Action: func(cctx *cli.Context) error {
if !cctx.Args().Present() {
return fmt.Errorf("please specify a name")
}
keyName := cctx.Args().First()
sk, err := ioutil.ReadAll(io.LimitReader(rand.Reader, 32))
if err != nil {
return err
}
keyInfo := types.KeyInfo{
Type: modules.KTJwtHmacSecret,
PrivateKey: sk,
}
p := modules.JwtPayload{
Allow: apistruct.AllPermissions,
}
token, err := jwt.Sign(&p, jwt.NewHS256(keyInfo.PrivateKey))
if err != nil {
return err
}
filename := fmt.Sprintf("jwt-%s.jwts", keyName)
file, err := os.OpenFile(filename, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0600)
if err != nil {
return err
}
defer func() {
if err := file.Close(); err != nil {
log.Warnf("failed to close output file: %w", err)
}
}()
bytes, err := json.Marshal(keyInfo)
if err != nil {
return err
}
encoded := hex.EncodeToString(bytes)
if _, err := file.Write([]byte(encoded)); err != nil {
return err
}
filenameToken := fmt.Sprintf("jwt-%s.token", keyName)
return ioutil.WriteFile(filenameToken, token, 0600)
},
}