在项目中,有时候一些信息不便完全显示,只需要显示部分信息。现在提供一些隐藏敏感信息的操作方法,主要为对信息的截取操作:
1.指定左右字符数量,中间的*的个数和实际长度有关:
/// <summary>
/// 隐藏敏感信息
/// </summary>
/// <param name="info">信息实体</param>
/// <param name="left">左边保留的字符数</param>
/// <param name="right">右边保留的字符数</param>
/// <param name="basedOnLeft">当长度异常时,是否显示左边
/// <code>true</code>显示左边,<code>false</code>显示右边
/// </param>
/// <returns></returns>
public static string HideSensitiveInfo(string info, int left, int right, bool basedOnLeft = true)
{
if (string.IsNullOrEmpty(info))
{
throw new ArgumentNullException(info);
}
var sbText = new StringBuilder();
var hiddenCharCount = info.Length - left - right;
if (hiddenCharCount > 0)
{
string prefix = info.Substring(0, left), suffix = info.Substring(info.Length - right);
sbText.Append(prefix);
for (var i = 0; i < hiddenCharCount; i++)
{
sbText.Append("*");
}
sbText.Append(suffix);
}
else
{
if (basedOnLeft)
{
if (info.Length > left && left > 0)
{
sbText.Append(info.Substring(0, left) + "****");
}
else
{
sbText.Append(info.Substring(0, 1) + "****");
}
}
else
{
if (info.Length > right && right > 0)
{
sbText.Append("****" + info.Substring(info.Length - right));
}
else
{
sbText.Append("****" + info.Substring(info.Length - 1));
}
}
}
return sbText.ToString();
}
2.指定左右字符数量,中间的*的个数固定:
/// <summary>
/// 隐藏敏感信息
/// </summary>
/// <param name="info">信息实体</param>
/// <param name="left">左边保留的字符数</param>
/// <param name="right">右边保留的字符数</param>
/// <param name="basedOnLeft">当长度异常时,是否显示左边
/// <code>true</code>显示左边,<code>false</code>显示右边
/// <returns></returns>
public static string HideSensitiveInfo1(string info, int left, int right, bool basedOnLeft = true)
{
if (string.IsNullOrEmpty(info))
{
throw new ArgumentNullException(info);
}
var sbText = new StringBuilder();
var hiddenCharCount = info.Length - left - right;
if (hiddenCharCount > 0)
{
string prefix = info.Substring(0, left), suffix = info.Substring(info.Length - right);
sbText.Append(prefix);
sbText.Append("****");
sbText.Append(suffix);
}
else
{
if (basedOnLeft)
{
if (info.Length > left && left > 0)
{
sbText.Append(info.Substring(0, left) + "****");
}
else
{
sbText.Append(info.Substring(0, 1) + "****");
}
}
else
{
if (info.Length > right && right > 0)
{
sbText.Append("****" + info.Substring(info.Length - right));
}
else
{
sbText.Append("****" + info.Substring(info.Length - 1));
}
}
}
return sbText.ToString();
}
/// <summary>
/// 隐藏敏感信息
/// </summary>
/// <param name="info">信息</param>
/// <param name="sublen">信息总长与左子串(或右子串)的比例</param>
/// <param name="basedOnLeft"/>当长度异常时,是否显示左边,默认true,默认显示左边
/// <code>true</code>显示左边,<code>false</code>显示右边
/// <returns></returns>
public static string HideSensitiveInfo(string info, int sublen = 3, bool basedOnLeft = true)
{
if (string.IsNullOrEmpty(info))
{
throw new ArgumentNullException(info);
}
if (sublen <= 1)
{
sublen = 3;
}
var subLength = info.Length / sublen;
if (subLength > 0 && info.Length > (subLength * 2))
{
string prefix = info.Substring(0, subLength), suffix = info.Substring(info.Length - subLength);
return prefix + "****" + suffix;
}
if (basedOnLeft)
{
var prefix = subLength > 0 ? info.Substring(0, subLength) : info.Substring(0, 1);
return prefix + "****";
}
var suffixs = subLength > 0 ? info.Substring(info.Length - subLength) : info.Substring(info.Length - 1);
return "****" + suffixs;
}
/// <summary>
/// 隐藏右键详情
/// </summary>
/// <param name="email">邮件地址</param>
/// <param name="left">邮件头保留字符个数,默认值设置为3</param>
/// <returns></returns>
public static string HideEmailDetails(string email, int left = 3)
{
if (string.IsNullOrEmpty(email))
{
throw new ArgumentNullException(email);
}
if (!System.Text.RegularExpressions.Regex.IsMatch(email, @"\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"))
return HideSensitiveInfo(email);
var suffixLen = email.Length - email.LastIndexOf('@');
return HideSensitiveInfo(email, left, suffixLen, false);
}
在一些信息的隐藏操作,可以采用js实现,也可以采用jquery插件完成操作,但是在前台进行这样的操作,存在一些风险,在后台完成对字符的信息截取,可以很好的对信息进行保护。
亿速云「云服务器」,即开即用、新一代英特尔至强铂金CPU、三副本存储NVMe SSD云盘,价格低至29元/月。点击查看>>
免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。