/// <summary>
/// 检查用户登录凭证，验证通过才允许访问后台数据.
/// </summary>
/// <param name="loginer">用户登录凭证</param>
/// <returns></returns>
public static Loginer ValidateLoginer(byte[] loginer)
{
//用户登录信息的长度小于伪码长度,数据包无效!
if (loginer.Length < PREFIX_LEN + SUFFIX_LEN)
{
return(null);
}
try
{
//用户登录信息的长度
byte[] objectArrar = new byte[loginer.Length - (PREFIX_LEN + SUFFIX_LEN)];
//复制用户登录信息的数据包(去掉前后伪码)
Array.Copy(loginer, PREFIX_LEN, objectArrar, 0, objectArrar.Length);
//转换为用户对象
Loginer user = (Loginer)ZipTools.DecompressionObject(objectArrar);
if (user.Account.Length >= 1) //系统限制用户帐号的长度必须大于或等于1位
{
return(user); //转换成功,返回用户对象.
}
else
{
throw new Exception("用户帐号不正确!");
}
}
catch
{
throw new Exception("验证用户资料失败!");
}
}
/// <summary>
/// 加密用户登录凭证
/// </summary>
/// <param name="user">当前用户登录信息</param>
/// <returns></returns>
public static byte[] EncryptLoginer(Loginer user)
{
byte[] user_byte = ZipTools.CompressionObject(user);
byte[] result = new byte[user_byte.Length + PREFIX_LEN + SUFFIX_LEN];
byte[] prefix = GetByteData(PREFIX_LEN);
byte[] suffix = GetByteData(SUFFIX_LEN);
Array.Copy(user_byte, 0, result, PREFIX_LEN, user_byte.Length); //复制用户数据
Array.Copy(prefix, 0, result, 0, prefix.Length); //复制头部伪码
Array.Copy(suffix, 0, result, result.Length - SUFFIX_LEN, suffix.Length); //复制尾部伪码
return(result);
}