NatSpec, URL register storage retrieval

fixed 2/3 tests

rpc/api.go

@@ -2,7 +2,7 @@ package rpc
 
 import (
 	"encoding/json"
-	// "fmt"
+	"fmt"
 	"math/big"
 	"sync"
 
@@ -167,6 +167,15 @@ func (api *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) err
 			return err
 		}
 
+		// call ConfirmTransaction first
+		var obj []json.RawMessage
+		if err := json.Unmarshal(req.Params, &obj); err != nil {
+			return NewDecodeParamError(err.Error())
+		}
+		if !api.xeth().ConfirmTransaction(string(obj[0])) {
+			return fmt.Errorf("Transaction not confirmed")
+		}
+
 		v, err := api.xeth().Transact(args.From, args.To, args.Value.String(), args.Gas.String(), args.GasPrice.String(), args.Data)
 		if err != nil {
 			return err