验证数据工具类目

using System.Text.RegularExpressions;

namespace Commons.Helpers
{
    /// <summary>
    ///    验证助手类
    /// </summary>
    public class ValidHelper
    {
        #region 验证只能是字母或数字
        /// <summary>
        /// 验证只能是字母或数字
        /// </summary>
        /// <param name="str">验证的字符串</param>
        /// <returns>判断结果</returns>
        public static bool IsLetterOrnumber(string str)
        {
            Regex r = new Regex("^[0-9a-zA-Z]*$");

            return !r.IsMatch(str);
        }
        #endregion

        #region 验证是否为正整数
        /// <summary>
        /// 验证是否为正整数
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool IsInt(string str)
        {

            return Regex.IsMatch(str, @"^[0-9]*$");
        }
        #endregion

        #region 验证是否符合email格式
        /// <summary>
        /// 验证是否符合email格式
        /// </summary>
        /// <param name="strEmail">要判断的email字符串</param>
        /// <returns>判断结果</returns>
        public static bool IsValidEmail(string strEmail)
        {
            //return Regex.IsMatch(strEmail, @"^[A-Za-z0-9-_]+@[A-Za-z0-9-_]+[\.][A-Za-z0-9-_]");
            return Regex.IsMatch(strEmail, @"^[\w\.]+@[A-Za-z0-9-_]+[\.][A-Za-z0-9-_]");
        }

        public static bool IsValidDoEmail(string strEmail)
        {
            return Regex.IsMatch(strEmail, @"^@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");
        }
        #endregion

        #region 验证是否是正确的Url
        /// <summary>
        /// 验证是否是正确的Url
        /// </summary>
        /// <param name="strUrl">要验证的Url</param>
        /// <returns>判断结果</returns>
        public static bool IsURL(string strUrl)
        {
            return Regex.IsMatch(strUrl, @"^(http|https)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&%\$\-]+)*@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{1,10}))(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\?\'\\\+&%\$#\=~_\-]+))*$");
        }
        #endregion

        #region 验证是否为IP
        /// <summary>
        /// 验证是否为IP
        /// </summary>
        /// <param name="ip"></param>
        /// <returns></returns>
        public static bool IsIP(string ip)
        {
            return Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$");
        }

        public static bool IsIPSect(string ip)
        {
            return Regex.IsMatch(ip, @"^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){2}((2[0-4]\d|25[0-5]|[01]?\d\d?|\*)\.)(2[0-4]\d|25[0-5]|[01]?\d\d?|\*)$");
        }
        #endregion

        #region 验证是否为手机号码
        /// <summary>
        /// 验证是否为手机号码
        /// </summary>
        /// <param name="handset"></param>
        /// <returns></returns>
        public static bool IsHandset(string handset)
        {
            return System.Text.RegularExpressions.Regex.IsMatch(handset, @"^[1]+[3,5,8]+\d{9}");
        }
        #endregion

        #region 验证是否为身份证号码
        /// <summary>
        /// 验证是否为身份证号码
        /// </summary>
        /// <param name="idcard"></param>
        /// <returns></returns>
        public static bool IsIDcard(string idcard)
        {
            return System.Text.RegularExpressions.Regex.IsMatch(idcard, @"(^\d{18}$)|(^\d{15}$)");
        }
        #endregion

        #region 验证是否是时间格式
        /// <summary>
        /// 验证是否是时间格式
        /// </summary>
        /// <returns></returns>
        public static bool IsTime(string timeval)
        {
            return Regex.IsMatch(timeval, @"^((([0-1]?[0-9])|(2[0-3])):([0-5]?[0-9])(:[0-5]?[0-9])?)$");
        }
        #endregion

        #region 检测是否有Sql危险字符
        /// <summary>
        /// 检测是否有Sql危险字符
        /// </summary>
        /// <param name="str">要判断字符串</param>
        /// <returns>判断结果</returns>
        public static bool IsSafeSqlString(string str)
        {

            return !Regex.IsMatch(str, @"[-|;|,|\/|\(|\)|\[|\]|\}|\{|%|@|\*|!|\']");
        }
        #endregion

        #region 判断是否为base64字符串
        /// <summary>
        /// 判断是否为base64字符串
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static bool IsBase64String(string str)
        {
            //A-Z, a-z, 0-9, +, /, =
            return Regex.IsMatch(str, @"[A-Za-z0-9\+\/\=]");
        }
        #endregion

        #region 返回指定IP是否在指定的IP数组所限定的范围内
        /// <summary>
        /// 返回指定IP是否在指定的IP数组所限定的范围内, IP数组内的IP地址可以使用*表示该IP段任意, 例如192.168.1.*
        /// </summary>
        /// <param name="ip"></param>
        /// <param name="iparray"></param>
        /// <returns></returns>
        public static bool InIPArray(string ip, string[] iparray)
        {
            string[] userip = StringHelper.SplitString(ip, @".");
            for (int ipIndex = 0; ipIndex < iparray.Length; ipIndex++)
            {
                string[] tmpip = StringHelper.SplitString(iparray[ipIndex], @".");
                int r = 0;
                for (int i = 0; i < tmpip.Length; i++)
                {
                    if (tmpip[i] == "*")
                    {
                        return true;
                    }

                    if (userip.Length > i)
                    {
                        if (tmpip[i] == userip[i])
                        {
                            r++;
                        }
                        else
                        {
                            break;
                        }
                    }
                    else
                    {
                        break;
                    }

                }
                if (r == 4)
                {
                    return true;
                }


            }
            return false;

        }
        #endregion

        #region 判断字符串是否是yy-mm-dd字符串
        /// <summary>
        /// 判断字符串是否是yy-mm-dd字符串
        /// </summary>
        /// <param name="str">待判断字符串</param>
        /// <returns>判断结果</returns>
        public static bool IsDateString(string str)
        {
            return Regex.IsMatch(str, @"(\d{4})-(\d{1,2})-(\d{1,2})");
        }
        #endregion

        #region 验证是否符合扩展名要求
        /// <summary>
        /// 验证是否符合扩展名要求
        /// </summary>
        /// <param name="extensions">扩展名字符串</param>
        /// <param name="fileName">文件名</param>
        /// <returns>判断结果</returns>
        public static bool IsValidFileExtensions(string extensions, string fileName)
        {
            string strPattern = string.Format(@"^.+\.(?:{0})$", extensions.Replace(',', '|'));
            Regex reg = new Regex(strPattern, RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);

            return reg.IsMatch(fileName);
        }
        #endregion
    }
}