为电子邮件确认生成短EmailConfirmationToken [英] Generate a Short EmailConfirmationToken for Email Confirmation

问题描述

我正在尝试为我的webapp实现注册过程。我正在使用此过程生成EmailConfirmationToken并通过电子邮件将其发送给用户。

  if （result.Succeeded）
 {
  string  code =  await  userManager.GenerateEmailConfirmationTokenAsync（user.Id）; 
 Uri baseUri =  new  Uri（OpenIdConnectAuthenticationAuthority）; 
 Uri callbackUrl =  new  Uri（baseUri +   / Register / ConfirmEmail /？userId = + user.Id +  & code = + HttpUtility.UrlEncode（code））; 
  await  userManager.SendEmailAsync（user.Id，  BIMcube电子邮件确认， 请点击以下链接确认您的帐户：< a href = \ + callbackUrl +   \> link< / a>）; 
} 

生成的令牌非常长。这是一个示例的令牌：



<预LANG = XML> AQAAANCMnd8BFdERjHoAwE / CL + sBAAAA48Afnm / pyU6UZrt2VXGfHAAAAAACAAAAAAADZgAAwAAAABAAAABa10013CpPZN7NSwTZYu03AAAAAASAAACgAAAAEAAAAHFDDmUWdvgFz4QCqe0ML / 1gAAAAN7hpoCFiW8NcTaMNCGMLALUYL0gcfXbPjXQddI5w68mm4FfbVhMkJPbL + JTA8RXZ7mb6VgNmxS / cxdMzy5BQdIdVUIWzQYPwBlX6Oimx + zESVcCSpUSVpwI05 + ls79nmFAAAAPTqCR7RSVR5zQT3UaJlcd1BokRr

我的UserTokenProvider是这样实现的：

  var  dataProtectionProvider =  new  DpapiDataProtectionProvider（  IdentityServer3）; 
 
  if （dataProtectionProvider！=  null ）
 {
 UserTokenProvider =  new  DataProtectorTokenProvider< User>（dataProtectionProvider.Create（  ASP.NET Identity））
 {
 TokenLifespan = TimeSpan.FromHours（ 3 ）
} ; 
} 

是否有可能生成电子邮件确认的短代码？你知道我需要实现什么吗？

解决方案

对于唯一令牌创建GUID



string strToken = Convert.ToBase64String（Guid.NewGuid（）。ToByteArray（））;



或者您可以使用日期时间时间戳并生成令牌。

byte [] time = BitConverter.GetBytes（DateTime.UtcNow.ToBinary（））;

byte [] key = Guid.NewGuid（）。ToByteArray（）;

string token = Convert.ToBase64String（time.Concat（key）.ToArray（））;

I'm trying to implement a registration prozess for my webapp. I am using this process for generating a EmailConfirmationToken and sending it via email to the user.

if (result.Succeeded)
 {
     string code = await userManager.GenerateEmailConfirmationTokenAsync(user.Id);
     Uri baseUri = new Uri(OpenIdConnectAuthenticationAuthority);
     Uri callbackUrl = new Uri(baseUri + "/Register/ConfirmEmail/?userId=" + user.Id + "&code=" + HttpUtility.UrlEncode(code));
     await userManager.SendEmailAsync(user.Id, "BIMcube eMail Confirmation", "Please confirm your account by clicking this link: <a href=\"" + callbackUrl + "\">link</a>");
 }

The generated token is very long. This is a example token:

AQAAANCMnd8BFdERjHoAwE/Cl+sBAAAA48Afnm/pyU6UZrt2VXGfHAAAAAACAAAAAAADZgAAwAAAABAAAABa10013CpPZN7NSwTZYu03AAAAAASAAACgAAAAEAAAAHFDDmUWdvgFz4QCqe0ML/1gAAAAN7hpoCFiW8NcTaMNCGMLALUYL0gcfXbPjXQddI5w68mm4FfbVhMkJPbL+JTA8RXZ7mb6VgNmxS/cxdMzy5BQdIdVUIWzQYPwBlX6Oimx+zESVcCSpUSVpwI05+ls79nmFAAAAPTqCR7RSVR5zQT3UaJlcd1BokRr

My UserTokenProvider is implemented like this:

var dataProtectionProvider = new DpapiDataProtectionProvider("IdentityServer3");

        if (dataProtectionProvider != null)
        {
            UserTokenProvider = new DataProtectorTokenProvider<User>(dataProtectionProvider.Create("ASP.NET Identity"))
            {
                TokenLifespan = TimeSpan.FromHours(3)
            };
        }

Is there any possibility for generating a short code for email confirmation? Do you have an idea what I need to implement?

解决方案

For unique token create GUID

string strToken = Convert.ToBase64String(Guid.NewGuid().ToByteArray());

Or you can use date time time stamp and generate token.
byte[] time = BitConverter.GetBytes(DateTime.UtcNow.ToBinary());
byte[] key = Guid.NewGuid().ToByteArray();
string token = Convert.ToBase64String(time.Concat(key).ToArray());

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