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sign.go
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sign.go
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package main
import (
"fmt"
"io/ioutil"
"os"
"strings"
"github.com/Nexellia-Network/nexelliad/cmd/nexelliawallet/keys"
"github.com/Nexellia-Network/nexelliad/cmd/nexelliawallet/libkaspawallet"
"github.com/pkg/errors"
)
func sign(conf *signConfig) error {
if conf.Transaction == "" && conf.TransactionFile == "" {
return errors.Errorf("Either --transaction or --transaction-file is required")
}
if conf.Transaction != "" && conf.TransactionFile != "" {
return errors.Errorf("Both --transaction and --transaction-file cannot be passed at the same time")
}
keysFile, err := keys.ReadKeysFile(conf.NetParams(), conf.KeysFile)
if err != nil {
return err
}
if len(conf.Password) == 0 {
conf.Password = keys.GetPassword("Password:")
}
privateKeys, err := keysFile.DecryptMnemonics(conf.Password)
if err != nil {
return err
}
transactionsHex := conf.Transaction
if conf.TransactionFile != "" {
transactionHexBytes, err := ioutil.ReadFile(conf.TransactionFile)
if err != nil {
return errors.Wrapf(err, "Could not read hex from %s", conf.TransactionFile)
}
transactionsHex = strings.TrimSpace(string(transactionHexBytes))
}
partiallySignedTransactions, err := decodeTransactionsFromHex(transactionsHex)
if err != nil {
return err
}
updatedPartiallySignedTransactions := make([][]byte, len(partiallySignedTransactions))
for i, partiallySignedTransaction := range partiallySignedTransactions {
updatedPartiallySignedTransactions[i], err =
libkaspawallet.Sign(conf.NetParams(), privateKeys, partiallySignedTransaction, keysFile.ECDSA)
if err != nil {
return err
}
}
areAllTransactionsFullySigned := true
for _, updatedPartiallySignedTransaction := range updatedPartiallySignedTransactions {
// This is somewhat redundant to check all transactions, but we do that just-in-case
isFullySigned, err := libkaspawallet.IsTransactionFullySigned(updatedPartiallySignedTransaction)
if err != nil {
return err
}
if !isFullySigned {
areAllTransactionsFullySigned = false
}
}
if areAllTransactionsFullySigned {
fmt.Fprintln(os.Stderr, "The transaction is signed and ready to broadcast")
} else {
fmt.Fprintln(os.Stderr, "Successfully signed transaction")
}
fmt.Println(encodeTransactionsToHex(updatedPartiallySignedTransactions))
return nil
}