Hi Ole,

I would generate a activation code on registering a member.

You can store this on the member it self or in a custom database table. I would use custom table because searching through members on a property value can be heavy operation.

Then you can send that code in a e-mail. When the user uses the code to confirm you can query the database on the code.

Dave

Hi Ole,

This is the code that I use now for a project where we needed to generated unique codes with a variable length. I couldn't use a guid as unique code because this was a database of existing project and it wasn't set up for GUIDs. The code only allows for "hexadecimal" characters but you can extend the allowed number of characters

public string GenerateUniqueCode(int length)
        {
            char[] chars = "ABCDEF0123456789".ToCharArray();
            byte[] data = new byte[1];
            using (RNGCryptoServiceProvider crypto = new RNGCryptoServiceProvider())
            {
                crypto.GetNonZeroBytes(data);
                data = new byte[length];
                crypto.GetNonZeroBytes(data);
            }
            StringBuilder result = new StringBuilder(length);
            foreach (byte b in data)
            {
                result.Append(chars[b % (chars.Length)]);
            }
            return result.ToString();
        }

I ran some test and with a 20 character length code it generated 100.000.000 million unique codes.

Dave

Thanks for your suggestions, Dave Woestenborghs, however I was hoping somebody had some code samples to provide. For now I have it kind of working with a api controller, but i guess I have to secure it in some way... But I do not how.

It is not a verification link, however I send the password to the user, so the new member has to have access to the email provided to get access.

The code for now: ```

     using System;
     using System.Collections.Generic;
     using System.Configuration; 
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.Mvc;
using Umbraco.Web.Mvc;
using Umbraco.Web.WebApi;
using Umbraco.Core;
using System.Web.Security;
using System.Net.Mail;

namespace losol.CMS.Controllers
{
    public class MemberApiController : UmbracoApiController
    {
        private readonly string adminEmail = ConfigurationManager.AppSettings["DefaultFromEmailAddress"];
        private readonly string mailAccount = ConfigurationManager.AppSettings["mailAccount"];
        private readonly string mailPassword = ConfigurationManager.AppSettings["mailPassword"];

        // https://domain.com/Umbraco/Api/MemberApi/RegisterMember?name=John+Johnson&[email protected]
        [System.Web.Http.AcceptVerbs("GET", "POST")]
        [System.Web.Http.HttpGet]
        public string RegisterMember(string name, string email)
        {
            // Check if member with email exists
            var member = ApplicationContext.Services.MemberService.GetByEmail(email);

            // No member with the email exist, return error message.
            if (member != null)
            {
                return "Member with email already exist: " + email;
            }

            // Create new member
            var newMember = ApplicationContext.Services.MemberService.CreateMember(email, email, name, "Member");
            ApplicationContext.Services.MemberService.Save(newMember);

            // Found the member, generate a new password and save it to the member
            var password = Membership.GeneratePassword(8, 2);
            ApplicationContext.Services.MemberService.SavePassword(newMember, password);

            // Now send email to the new member with the password
            var emailToSend = new StringBuilder();
            emailToSend.AppendFormat("<p>Welcome to our site. We have generated a password for you. Please use the new password below to login to the site.</p>");
            emailToSend.AppendFormat("<p><b>{0}</b></p>", password);

            // Send password in email
            SendEmail(adminEmail, email, "New user", emailToSend.ToString());

            // Return a OK status
            return "New member created with email: " + email;
        }


        // https://domain.com/Umbraco/Api/MemberAPI/[email protected]
        [System.Web.Http.AcceptVerbs("GET", "POST")]
        [System.Web.Http.HttpGet]
        public string ResetPasswordForMember(string email)
        {
            // Lookup member
            var member = ApplicationContext.Services.MemberService.GetByEmail(email);

            // No member with the email exist, return error message.
            if (member == null)
            {
                return "Could not find any member with email: " + email;
            }

            // Found the member, generate a new password and save it to the member
            var password = Membership.GeneratePassword(8, 2);
            ApplicationContext.Services.MemberService.SavePassword(member, password);

            // Now email the member the password
            var emailToSend = new StringBuilder();
            emailToSend.AppendFormat("<p>We have made a new password for you. Please use the new password below to login to the site.</p>");
            emailToSend.AppendFormat("<p><b>{0}</b></p>", password);

            // Send password in email
            SendEmail(adminEmail, email, "New password", emailToSend.ToString());

            // Return a OK status
            return "Password is sent to email: " + email;
        }

        private string SendEmail(string fromEmail, string toEmail, string subject, string body)
        {
            try
            {
                MailMessage mailMsg = new MailMessage();

                // Make the email
                mailMsg.From = new MailAddress(fromEmail);
                mailMsg.To.Add(new MailAddress(toEmail));
                mailMsg.Subject = subject;
                mailMsg.IsBodyHtml = true;
                mailMsg.Body = body;

                // Init SmtpClient and send
                SmtpClient smtpClient = new SmtpClient("smtp.sendgrid.net", Convert.ToInt32(587));
                System.Net.NetworkCredential credentials = new System.Net.NetworkCredential(mailAccount, mailPassword);
                smtpClient.Credentials = credentials;

                smtpClient.Send(mailMsg);
                return "ok";
            }
            catch (Exception ex)
            {
                return ex.Message;
                }
            }
        }
    }

```

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