func (bc *BtcCred) SignOcReq(req *msg.OcReq, conf *util.BitcoindConf) error {
h, err := getReqSigDataHash(req)
if err != nil {
return err
}
hb64 := base64.StdEncoding.EncodeToString(h)
msg, err := btcjson.NewSignMessageCmd(nil, bc.Addr, hb64)
if err != nil {
return fmt.Errorf("error while making cmd: %v", err.Error())
}
json, err := msg.MarshalJSON()
if err != nil {
return fmt.Errorf("error while marshaling: %v", err.Error())
}
resp, err := btcjson.RpcCommand(conf.User, conf.Password, conf.Server, json)
if err != nil {
return fmt.Errorf("error while making bitcoind JSON-RPC: %v", err.Error())
}
sig, ok := resp.Result.(string)
if !ok {
return errors.New("error during bitcoind JSON-RPC")
}
req.Coins = append(req.Coins, fmt.Sprintf(bc.Addr))
req.CoinSigs = append(req.CoinSigs, fmt.Sprintf(sig))
return nil
}
// makeSignMessage generates the cmd structure for signmessage commands.
func makeSignMessage(args []interface{}) (btcjson.Cmd, error) {
return btcjson.NewSignMessageCmd("btcctl", args[0].(string),
args[1].(string))
}