110 lines
2.4 KiB
Go
110 lines
2.4 KiB
Go
package commands
|
|
|
|
import (
|
|
"encoding/hex"
|
|
"fmt"
|
|
|
|
"github.com/spf13/cobra"
|
|
"github.com/spf13/viper"
|
|
|
|
"github.com/cosmos/cosmos-sdk/client"
|
|
"github.com/cosmos/cosmos-sdk/client/core"
|
|
sdk "github.com/cosmos/cosmos-sdk/types"
|
|
"github.com/cosmos/cosmos-sdk/wire"
|
|
"github.com/cosmos/cosmos-sdk/x/bank"
|
|
cryptokeys "github.com/tendermint/go-crypto/keys"
|
|
)
|
|
|
|
const (
|
|
flagTo = "to"
|
|
flagAmount = "amount"
|
|
)
|
|
|
|
// SendTxCommand will create a send tx and sign it with the given key
|
|
func SendTxCmd(Cdc *wire.Codec) *cobra.Command {
|
|
cmdr := Commander{Cdc}
|
|
cmd := &cobra.Command{
|
|
Use: "send",
|
|
Short: "Create and sign a send tx",
|
|
RunE: cmdr.sendTxCmd,
|
|
}
|
|
cmd.Flags().String(flagTo, "", "Address to send coins")
|
|
cmd.Flags().String(flagAmount, "", "Amount of coins to send")
|
|
return cmd
|
|
}
|
|
|
|
type Commander struct {
|
|
Cdc *wire.Codec
|
|
}
|
|
|
|
func (c Commander) sendTxCmd(cmd *cobra.Command, args []string) error {
|
|
// get the from address
|
|
from, err := core.GetFromAddress()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// parse coins
|
|
amount := viper.GetString(flagAmount)
|
|
coins, err := sdk.ParseCoins(amount)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// parse destination address
|
|
dest := viper.GetString(flagTo)
|
|
bz, err := hex.DecodeString(dest)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
to := sdk.Address(bz)
|
|
|
|
// get account name
|
|
name := viper.GetString(client.FlagName)
|
|
|
|
// build message
|
|
msg := BuildMsg(from, to, coins)
|
|
|
|
// build and sign the transaction, then broadcast to Tendermint
|
|
res, err := core.SignBuildBroadcast(name, msg, c.Cdc)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
fmt.Printf("Committed at block %d. Hash: %s\n", res.Height, res.Hash.String())
|
|
return nil
|
|
}
|
|
|
|
func BuildMsg(from sdk.Address, to sdk.Address, coins sdk.Coins) sdk.Msg {
|
|
input := bank.NewInput(from, coins)
|
|
output := bank.NewOutput(to, coins)
|
|
msg := bank.NewSendMsg([]bank.Input{input}, []bank.Output{output})
|
|
return msg
|
|
}
|
|
|
|
func (c Commander) SignMessage(msg sdk.Msg, kb cryptokeys.Keybase, accountName string, password string) ([]byte, error) {
|
|
// sign and build
|
|
bz := msg.GetSignBytes()
|
|
sig, pubkey, err := kb.Sign(accountName, password, bz)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
sigs := []sdk.StdSignature{{
|
|
PubKey: pubkey,
|
|
Signature: sig,
|
|
Sequence: viper.GetInt64(client.FlagName),
|
|
}}
|
|
|
|
// TODO: fees
|
|
var fee sdk.StdFee
|
|
|
|
// marshal bytes
|
|
tx := sdk.NewStdTx(msg, fee, sigs)
|
|
|
|
txBytes, err := c.Cdc.MarshalBinary(tx)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return txBytes, nil
|
|
}
|