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-rw-r--r--xeth/xeth.go11
1 files changed, 11 insertions, 0 deletions
diff --git a/xeth/xeth.go b/xeth/xeth.go
index 5d54c1f7e..372068c14 100644
--- a/xeth/xeth.go
+++ b/xeth/xeth.go
@@ -20,8 +20,10 @@ package xeth
import (
"bytes"
"encoding/json"
+ "errors"
"fmt"
"math/big"
+ "regexp"
"sync"
"time"
@@ -45,6 +47,7 @@ var (
defaultGasPrice = big.NewInt(10000000000000) //150000000000
defaultGas = big.NewInt(90000) //500000
dappStorePre = []byte("dapp-")
+ addrReg = regexp.MustCompile(`^(0x)?[a-fA-F0-9]{40}$`)
)
// byte will be inferred
@@ -878,6 +881,10 @@ func (self *XEth) Sign(fromStr, hashStr string, didUnlock bool) (string, error)
return common.ToHex(sig), nil
}
+func isAddress(addr string) bool {
+ return addrReg.MatchString(addr)
+}
+
func (self *XEth) Transact(fromStr, toStr, nonceStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) {
// this minimalistic recoding is enough (works for natspec.js)
@@ -887,6 +894,10 @@ func (self *XEth) Transact(fromStr, toStr, nonceStr, valueStr, gasStr, gasPriceS
return "", err
}
+ if !isAddress(toStr) {
+ return "", errors.New("Invalid address")
+ }
+
var (
from = common.HexToAddress(fromStr)
to = common.HexToAddress(toStr)