You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

115 lines
3.2 KiB

package main
import (
"bufio"
"bytes"
"encoding/hex"
"fmt"
"os"
"strconv"
"github.com/tendermint/tendermint/account"
"github.com/tendermint/tendermint/binary"
. "github.com/tendermint/tendermint/common"
dbm "github.com/tendermint/tendermint/db"
sm "github.com/tendermint/tendermint/state"
"github.com/tendermint/tendermint/types"
)
func getString(prompt string) string {
reader := bufio.NewReader(os.Stdin)
fmt.Print(prompt)
input, _ := reader.ReadString('\n')
return input[:len(input)-1]
}
func getByteSliceFromHex(prompt string) []byte {
input := getString(prompt)
bytes, err := hex.DecodeString(input)
if err != nil {
Exit(Fmt("Not in hex format: %v\nError: %v\n", input, err))
}
return bytes
}
func getUint64(prompt string) uint64 {
input := getString(prompt)
i, err := strconv.Atoi(input)
if err != nil {
Exit(Fmt("Not a valid uint64 amount: %v\nError: %v\n", input, err))
}
return uint64(i)
}
func gen_tx() {
// Get State, which may be nil.
stateDB := dbm.GetDB("state")
state := sm.LoadState(stateDB)
// Get source pubkey
srcPubKeyBytes := getByteSliceFromHex("Enter source pubkey: ")
r, n, err := bytes.NewReader(srcPubKeyBytes), new(int64), new(error)
srcPubKey := binary.ReadBinary(struct{ account.PubKey }{}, r, n, err).(struct{ account.PubKey }).PubKey
if *err != nil {
Exit(Fmt("Invalid PubKey. Error: %v", err))
}
// Get the state of the account.
var srcAccount *account.Account
var srcAccountAddress = srcPubKey.Address()
var srcAccountBalanceStr = "unknown"
var srcAccountSequenceStr = "unknown"
srcAddress := srcPubKey.Address()
if state != nil {
srcAccount = state.GetAccount(srcAddress)
srcAccountBalanceStr = Fmt("%v", srcAccount.Balance)
srcAccountSequenceStr = Fmt("%v", srcAccount.Sequence+1)
}
// Get the amount to send from src account
srcSendAmount := getUint64(Fmt("Enter amount to send from %X (total: %v): ", srcAccountAddress, srcAccountBalanceStr))
// Get the next sequence of src account
srcSendSequence := uint(getUint64(Fmt("Enter next sequence for %X (guess: %v): ", srcAccountAddress, srcAccountSequenceStr)))
// Get dest address
dstAddress := getByteSliceFromHex("Enter destination address: ")
// Get the amount to send to dst account
dstSendAmount := getUint64(Fmt("Enter amount to send to %X: ", dstAddress))
// Construct SendTx
tx := &types.SendTx{
Inputs: []*types.TxInput{
&types.TxInput{
Address: srcAddress,
Amount: srcSendAmount,
Sequence: srcSendSequence,
Signature: account.SignatureEd25519{},
PubKey: srcPubKey,
},
},
Outputs: []*types.TxOutput{
&types.TxOutput{
Address: dstAddress,
Amount: dstSendAmount,
},
},
}
// Show the intermediate form.
fmt.Printf("Generated tx: %X\n", binary.BinaryBytes(tx))
// Get source privkey (for signing)
srcPrivKeyBytes := getByteSliceFromHex("Enter source privkey (for signing): ")
r, n, err = bytes.NewReader(srcPrivKeyBytes), new(int64), new(error)
srcPrivKey := binary.ReadBinary(struct{ account.PrivKey }{}, r, n, err).(struct{ account.PrivKey }).PrivKey
if *err != nil {
Exit(Fmt("Invalid PrivKey. Error: %v", err))
}
// Sign
tx.Inputs[0].Signature = srcPrivKey.Sign(account.SignBytes(tx))
fmt.Printf("Signed tx: %X\n", binary.BinaryBytes(tx))
}