MOBILE_API/Business/KftcPasswordRule/DboValidationRule.cs

using System;

namespace Business.KftcPasswordRule
{
    /// <summary>
    /// </summary>
    public class DboValidationRule : PasswordRule
    {
        /// <summary>
        /// </summary>
        /// <param name="model"></param>
        public PasswordValidationResult Validate(ValidationModel model)
        {
            string[] dobArr = null;
            string dateOfBirth = "";
            if (model.IdType.ToLower() == "passport" || model.IdType.Trim().Equals("10997"))
            {
                dobArr = model.Dob.Split('/');
                string mm = dobArr[0], dd = dobArr[1];
                if (dobArr[0].Length == 1)
                {
                    mm = "0" + mm;
                }
                if (dobArr[1].Length == 1)
                {
                    dd = "0" + dd;
                }
                dateOfBirth = dobArr[2].Substring(0, 4) + mm + dd;
            }
            else
            {
                dateOfBirth = model.IdNumber.Substring(0, 6);

                string yy = "19" + dateOfBirth.Substring(0, 2);

                int nowYear = DateTime.Now.Year;
                if ((nowYear - Convert.ToInt16(yy)) > 80)
                {
                    yy = "20" + dateOfBirth.Substring(0, 2);
                }

                dateOfBirth = yy + dateOfBirth.Substring(2, 4);
            }

            string dateOfBirth1 = dateOfBirth.Substring(0, 4);
            string dateOfBirth2 = dateOfBirth.Substring(2, 6);
            string dateOfBirth3 = dateOfBirth.Substring(4, 4);
            if (model.Password.Contains(dateOfBirth1))
            {
                return new PasswordValidationResult { IsValid = false, Message = "Password can not be same as DOB!" };
            }
            if (model.Password.Contains(dateOfBirth2))
            {
                return new PasswordValidationResult { IsValid = false, Message = "Password can not be same as DOB!" };
            }
            if (model.Password.Contains(dateOfBirth3))
            {
                return new PasswordValidationResult { IsValid = false, Message = "Password can not be same as DOB!" };
            }
            return new PasswordValidationResult { IsValid = true, Message = "valid password" };
        }
    }
}