// 校验MAC
private boolean checkMac(BusinessMessage bm) throws Exception {
// 查询是否需要校验MAC
ResourceBundle rb = null;
try {
rb = ResourceBundle.getBundle("conf.checkFlag");
bm.setMacFlag(Boolean.valueOf(rb.getString(bm.getChanelType() + "checkMacFlag")));
// WEBMessageHead fixMsgHeadData = (WEBMessageHead)bm.getFixMsgHeadData();
WEBMessageHead webMsgHeadData = (WEBMessageHead) bm.getWebMsgHeadData();
if ("000010".equals(bm.getTranCode()) && "7".equals(webMsgHeadData.getHandleType())) {
bm.setMacFlag(false);
}
} catch (Exception e) {
logger.error("取mac校验标志错!", e);
// 默认为true
bm.setMacFlag(true);
}
logger.info("mac校验标志:[{}],交易码:[{}]!", bm.isMacFlag(), bm.getTranCode());
if (bm.isMacFlag() == false || "000903".equals(bm.getTranCode())) {
return true;
}
// 无论是否校验MAC，都取出MAB
// 从报文头（除长度位字段）+报文体（除MAC字段）
// （MAB），采用ECB算法，加密结果为64位的MAC。
byte[] macData = getMacData();
bm.setMacData(macData);
// MAC
String fieldName = "D_EPOS_MAC";
int length = 0;
String macstr = null;
try {
length = fieldsConfig.getFieldAsciiLength(fieldName);
macstr = FieldUtils.getFixedLengthAsciiField(fieldName, buffer, offset, length, fieldsConfig);
offset += length;
} catch (Exception e) {
e.printStackTrace();
throw new PacketOperationException("mac获取出错");
}
if (null == macstr || macstr.length() != 16) {
logger.error("获取MAC错误！");
return false;
}
// String macstr = buffer.substring(buffer.length()-16);
byte[] mac = ConvertUtils.str2Bcd(macstr);
// (byte[])fieldValues.get("D_EPOS_MAC");
bm.setMac(mac);
byte[] origMac = bm.getMac();
if (origMac == null) {
throw new PacketOperationException("上传mac值为空!");
}
// logger.info("mab:[{}]", new String(macData));
// logger.info("mac:[{}]", ConvertUtils.bytes2HexStr(origMac));
logger.info("开始进行MAC校验");
// POS不上送终端号，使用商户号作为密钥管理号
boolean result = encryptionService.checkMAC(origMac, macData, bm.getShopCode());
if (result) logger.info("MAC校验成功!");
else logger.info("MAC校验失败!");
return result;
}
