99 lines
2.3 KiB
Go
99 lines
2.3 KiB
Go
package cli
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import (
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"bytes"
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"encoding/base64"
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"encoding/hex"
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"encoding/json"
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"fmt"
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"github.com/spf13/cobra"
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"github.com/tendermint/go-amino"
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"github.com/cosmos/cosmos-sdk/client"
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"github.com/cosmos/cosmos-sdk/client/context"
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"github.com/cosmos/cosmos-sdk/codec"
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"github.com/cosmos/cosmos-sdk/version"
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"github.com/cosmos/cosmos-sdk/x/auth/types"
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authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
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)
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// GetDecodeCommand returns the decode command to take Amino-serialized bytes
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// and turn it into a JSONified transaction.
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func GetDecodeCommand(codec *amino.Codec) *cobra.Command {
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cmd := &cobra.Command{
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Use: "decode [amino-byte-string]",
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Short: "Decode an amino-encoded transaction string",
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) (err error) {
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cliCtx := context.NewCLIContext().WithCodec(codec)
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txBytes, err := base64.StdEncoding.DecodeString(args[0])
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if err != nil {
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return err
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}
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var stdTx authtypes.StdTx
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err = cliCtx.Codec.UnmarshalBinaryLengthPrefixed(txBytes, &stdTx)
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if err != nil {
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return err
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}
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return cliCtx.PrintOutput(stdTx)
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},
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}
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return client.PostCommands(cmd)[0]
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}
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// GetDecodeTxCmd - returns the command to decode a tx from hex or base64
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func GetDecodeTxCmd(cdc *codec.Codec) *cobra.Command {
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return &cobra.Command{
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Use: "decode-tx [tx]",
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Short: "Decode a tx from hex or base64",
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Long: fmt.Sprintf(`Decode a tx from hex, base64.
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Example:
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$ %s tx decode-tx TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz
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`, version.ClientName),
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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txString := args[0]
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// try hex, then base64
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txBytes, err := hex.DecodeString(txString)
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if err != nil {
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var err2 error
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txBytes, err2 = base64.StdEncoding.DecodeString(txString)
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if err2 != nil {
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return fmt.Errorf(`expected hex or base64. Got errors:
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hex: %v,
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base64: %v
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`, err, err2)
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}
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}
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var tx = types.StdTx{}
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err = cdc.UnmarshalBinaryLengthPrefixed(txBytes, &tx)
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if err != nil {
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return err
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}
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bz, err := cdc.MarshalJSON(tx)
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if err != nil {
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return err
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}
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buf := bytes.NewBuffer([]byte{})
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if err = json.Indent(buf, bz, "", " "); err != nil {
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return err
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}
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fmt.Println(buf.String())
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return nil
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},
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}
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}
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