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