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feat: add CLI for issuing JWT (#565)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| package cmd | ||
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| import ( | ||
| "encoding/hex" | ||
| "fmt" | ||
| "time" | ||
|
|
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| "github.com/btcsuite/btcd/btcec" | ||
| "github.com/cosmos/cosmos-sdk/client" | ||
| "github.com/cosmos/cosmos-sdk/client/flags" | ||
| "github.com/cosmos/cosmos-sdk/crypto/keyring" | ||
| "github.com/lestrrat-go/jwx/v2/jwa" | ||
| "github.com/lestrrat-go/jwx/v2/jwt" | ||
| "github.com/spf13/cobra" | ||
| "github.com/tendermint/tendermint/libs/cli" | ||
| ) | ||
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| func JwtCmd(defaultNodeHome string) *cobra.Command { | ||
| cmd := &cobra.Command{ | ||
| Use: "issue-jwt [expiration]", | ||
| Short: "Issue a JWT(Json Web Token) from account", | ||
| Long: ` | ||
| This command issue a JWT(Json Web Token) from account in panacea. | ||
| The key to be used for issuing a JWT should be stored in the localStore. | ||
| If not stored, please add the key first. | ||
| The [expiration] should use the format such as "1h", "30m", "2h45m" etc. | ||
| Valid time units are "ns", "us" (or "µs"), "ms", "s", "m", "h". | ||
| `, | ||
| Args: cobra.ExactArgs(1), | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| clientCtx, err := client.GetClientTxContext(cmd) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| expirationDuration, err := time.ParseDuration(args[0]) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| fromAddress := clientCtx.GetFromAddress() | ||
|
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| issuedJWT, err := issueJWT(clientCtx, fromAddress.String(), clientCtx.GetFromName(), expirationDuration) | ||
| if err != nil { | ||
| return err | ||
| } | ||
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| _, err = fmt.Fprintln(cmd.OutOrStdout(), string(issuedJWT)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| return nil | ||
| }, | ||
| } | ||
|
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| cmd.PersistentFlags().String(flags.FlagHome, defaultNodeHome, "The application home directory") | ||
| cmd.PersistentFlags().String(flags.FlagKeyringDir, "", "The client Keyring directory; if omitted, the default 'home' directory will be used") | ||
| cmd.PersistentFlags().String(flags.FlagKeyringBackend, flags.DefaultKeyringBackend, "Select keyring's backend (os|file|test)") | ||
| cmd.PersistentFlags().String(cli.OutputFlag, "text", "Output format (text|json)") | ||
| cmd.PersistentFlags().String(flags.FlagChainID, "", "The network chain ID") | ||
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| flags.AddTxFlagsToCmd(cmd) | ||
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| return cmd | ||
| } | ||
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| func issueJWT(clientCtx client.Context, issuer, keyName string, expiration time.Duration) ([]byte, error) { | ||
| privKeyHex, err := keyring.NewUnsafe(clientCtx.Keyring).UnsafeExportPrivKeyHex(keyName) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| privKeyBz, err := hex.DecodeString(privKeyHex) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| privKey, _ := btcec.PrivKeyFromBytes(btcec.S256(), privKeyBz) | ||
|
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| now := time.Now().Truncate(time.Second) | ||
| token, err := jwt.NewBuilder(). | ||
| Issuer(issuer). | ||
| IssuedAt(now). | ||
| NotBefore(now). | ||
| Expiration(now.Add(expiration)). | ||
| Build() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| return jwt.Sign(token, jwt.WithKey(jwa.ES256K, privKey.ToECDSA())) | ||
| } |
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