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transactionauth_base.go
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transactionauth_base.go
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package zcncore
import (
"encoding/json"
"github.com/0chain/errors"
"github.com/0chain/gosdk/core/node"
"github.com/0chain/gosdk/core/sys"
"github.com/0chain/gosdk/core/transaction"
"github.com/0chain/gosdk/core/zcncrypto"
)
type TransactionWithAuth struct {
t *Transaction
}
func (ta *TransactionWithAuth) Hash() string {
return ta.t.txnHash
}
func (ta *TransactionWithAuth) SetTransactionNonce(txnNonce int64) error {
return ta.t.SetTransactionNonce(txnNonce)
}
func newTransactionWithAuth(cb TransactionCallback, txnFee uint64, nonce int64) (*TransactionWithAuth, error) {
ta := &TransactionWithAuth{}
var err error
ta.t, err = newTransaction(cb, txnFee, nonce)
return ta, err
}
func (ta *TransactionWithAuth) getAuthorize() (*transaction.Transaction, error) {
ta.t.txn.PublicKey = _config.wallet.ClientKey
err := ta.t.txn.ComputeHashAndSign(SignFn)
if err != nil {
return nil, errors.Wrap(err, "signing error.")
}
jsonByte, err := json.Marshal(ta.t.txn)
if err != nil {
return nil, err
}
if sys.Authorize == nil {
return nil, errors.New("not_initialized", "no authorize func is set, define it in native code and set in sys")
}
authorize, err := sys.Authorize(string(jsonByte))
if err != nil {
return nil, err
}
var txnResp transaction.Transaction
err = json.Unmarshal([]byte(authorize), &txnResp)
if err != nil {
return nil, errors.Wrap(err, "invalid json on auth response.")
}
logging.Debug(txnResp)
// Verify the signature on the result
ok, err := txnResp.VerifyTransaction(sys.VerifyWith)
if err != nil {
logging.Error("verification failed for txn from auth", err.Error())
return nil, errAuthVerifyFailed
}
if !ok {
ta.completeTxn(StatusAuthVerifyFailed, "", errAuthVerifyFailed)
return nil, errAuthVerifyFailed
}
return &txnResp, nil
}
func (ta *TransactionWithAuth) completeTxn(status int, out string, err error) {
// do error code translation
if status != StatusSuccess {
switch err {
case errNetwork:
status = StatusNetworkError
case errUserRejected:
status = StatusRejectedByUser
case errAuthVerifyFailed:
status = StatusAuthVerifyFailed
case errAuthTimeout:
status = StatusAuthTimeout
}
}
ta.t.completeTxn(status, out, err) //nolint
}
func verifyFn(signature, msgHash, publicKey string) (bool, error) {
v := zcncrypto.NewSignatureScheme(_config.chain.SignatureScheme)
err := v.SetPublicKey(publicKey)
if err != nil {
return false, err
}
ok, err := v.Verify(signature, msgHash)
if err != nil || !ok {
return false, errors.New("", `{"error": "signature_mismatch"}`)
}
return true, nil
}
func (ta *TransactionWithAuth) sign(otherSig string) error {
ta.t.txn.ComputeHashData()
sig, err := AddSignature(_config.wallet.Keys[0].PrivateKey, otherSig, ta.t.txn.Hash)
if err != nil {
return err
}
ta.t.txn.Signature = sig
return nil
}
func (ta *TransactionWithAuth) submitTxn() {
nonce := ta.t.txn.TransactionNonce
if nonce < 1 {
nonce = node.Cache.GetNextNonce(ta.t.txn.ClientID)
} else {
node.Cache.Set(ta.t.txn.ClientID, nonce)
}
ta.t.txn.TransactionNonce = nonce
authTxn, err := ta.getAuthorize()
if err != nil {
logging.Error("get auth error for send.", err.Error())
ta.completeTxn(StatusAuthError, "", err)
return
}
// Authorized by user. Give callback to app.
if ta.t.txnCb != nil {
ta.t.txnCb.OnAuthComplete(ta.t, StatusSuccess)
}
// Use the timestamp from auth and sign
ta.t.txn.CreationDate = authTxn.CreationDate
err = ta.sign(authTxn.Signature)
if err != nil {
ta.completeTxn(StatusError, "", errAddSignature)
}
ta.t.submitTxn()
}
func (ta *TransactionWithAuth) StoreData(data string) error {
go func() {
ta.t.txn.TransactionType = transaction.TxnTypeData
ta.t.txn.TransactionData = data
ta.submitTxn()
}()
return nil
}
// ExecuteFaucetSCWallet impements the Faucet Smart contract for a given wallet
func (ta *TransactionWithAuth) ExecuteFaucetSCWallet(walletStr string, methodName string, input []byte) error {
w, err := ta.t.createFaucetSCWallet(walletStr, methodName, input)
if err != nil {
return err
}
go func() {
nonce := ta.t.txn.TransactionNonce
if nonce < 1 {
nonce = node.Cache.GetNextNonce(ta.t.txn.ClientID)
} else {
node.Cache.Set(ta.t.txn.ClientID, nonce)
}
ta.t.txn.TransactionNonce = nonce
err = ta.t.txn.ComputeHashAndSignWithWallet(signWithWallet, w)
if err != nil {
return
}
ta.submitTxn()
}()
return nil
}
func (ta *TransactionWithAuth) SetTransactionCallback(cb TransactionCallback) error {
return ta.t.SetTransactionCallback(cb)
}
func (ta *TransactionWithAuth) SetTransactionHash(hash string) error {
return ta.t.SetTransactionHash(hash)
}
func (ta *TransactionWithAuth) GetTransactionHash() string {
return ta.t.GetTransactionHash()
}
func (ta *TransactionWithAuth) Verify() error {
return ta.t.Verify()
}
func (ta *TransactionWithAuth) GetVerifyOutput() string {
return ta.t.GetVerifyOutput()
}
func (ta *TransactionWithAuth) GetTransactionError() string {
return ta.t.GetTransactionError()
}
func (ta *TransactionWithAuth) GetVerifyError() string {
return ta.t.GetVerifyError()
}
func (ta *TransactionWithAuth) Output() []byte {
return []byte(ta.t.txnOut)
}
// GetTransactionNonce returns nonce
func (ta *TransactionWithAuth) GetTransactionNonce() int64 {
return ta.t.txn.TransactionNonce
}
// ========================================================================== //
// vesting pool //
// ========================================================================== //
func (ta *TransactionWithAuth) VestingTrigger(poolID string) (err error) {
err = ta.t.vestingPoolTxn(transaction.VESTING_TRIGGER, poolID, 0)
if err != nil {
logging.Error(err)
return
}
go func() { ta.submitTxn() }()
return
}
func (ta *TransactionWithAuth) VestingStop(sr *VestingStopRequest) (err error) {
err = ta.t.createSmartContractTxn(VestingSmartContractAddress,
transaction.VESTING_STOP, sr, 0)
if err != nil {
logging.Error(err)
return
}
go func() { ta.submitTxn() }()
return
}
func (ta *TransactionWithAuth) VestingUnlock(poolID string) (err error) {
err = ta.t.vestingPoolTxn(transaction.VESTING_UNLOCK, poolID, 0)
if err != nil {
logging.Error(err)
return
}
go func() { ta.submitTxn() }()
return
}
func (ta *TransactionWithAuth) VestingDelete(poolID string) (err error) {
err = ta.t.vestingPoolTxn(transaction.VESTING_DELETE, poolID, 0)
if err != nil {
logging.Error(err)
return
}
go func() { ta.submitTxn() }()
return
}
//
// miner sc
//
// RegisterMultiSig register a multisig wallet with the SC.
func (ta *TransactionWithAuth) RegisterMultiSig(walletstr string, mswallet string) error {
return errors.New("", "not implemented")
}
//
// Storage SC
//