Asp.net 2.0 Identifier, ConfirmEmailAsync () Gets Invalid Token

Question

I am trying to confirm a user email using Asp.net Identity 2.0. As suggested by several blogs, I put machineKey in a Web.Config file so that encryption and decryption work on the Azure website. Locally, I cannot create a token. When I try to confirm (the token generated by my web api) using the UserManager.ConfirmEmailAsync method, I get an "Invalid Token". I tried UrlEncoding my code, but it did not work. I can not find enough help to solve this problem.

The email generation code is as follows

  code = HttpUtility.UrlEncode(UserManager.GenerateEmailConfirmationToken(identityUser.Id));
 _logger.Info("Generate confiruation token: " + code);

 string link = model.ConfirmUrl + string.Format("?userId={0}&code={1}", HttpUtility.UrlEncode(identityUser.Id), code);
 Configuration.Services.GetTraceWriter().Info(Request, Category, "Account GenereatedLink: " + link);

 UserManager.SendEmail(identityUser.Id, "Contactbook confirmation", link);

Confirm Email Code

       IdentityResult idResult = await UserManager.ConfirmEmailAsync(userId, code);
        IHttpActionResult result = GetErrorResult(idResult);

Launch Code .auth.cs

app.CreatePerOwinContext(CBIndentityDbContext.Create);
        app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);

        OAuthOptions = new OAuthAuthorizationServerOptions
        {
            TokenEndpointPath = new PathString("/Token"),
            Provider = new ApplicationOAuthProvider(),
            AuthorizeEndpointPath = new PathString("/api/Account/ExternalLogin"),
            AccessTokenExpireTimeSpan = TimeSpan.FromDays(14),
            AllowInsecureHttp = true
        };
        app.UseOAuthBearerTokens(OAuthOptions);

AuthorizationManager.cs

    public static ApplicationUserManager Create(IdentityFactoryOptions<ApplicationUserManager> options, IOwinContext context)
    {
        var appDbContext = context.Get<CBIndentityDbContext>();
        var appUserManager = new ApplicationUserManager(new UserStore<IdentityUser>(appDbContext));

        // Configure validation logic for usernames
        appUserManager.UserValidator = new UserValidator<IdentityUser>(appUserManager)
        {
            AllowOnlyAlphanumericUserNames = true,
            RequireUniqueEmail = true
        };

        // Configure validation logic for passwords
        appUserManager.PasswordValidator = new PasswordValidator
        {
            RequiredLength = 7,
            RequireDigit = false
        };

        appUserManager.EmailService = new ContactbookEmailService();

        var dataProtectionProvider = options.DataProtectionProvider;
        if (dataProtectionProvider != null)
        {
            appUserManager.UserTokenProvider = new DataProtectorTokenProvider<IdentityUser>(dataProtectionProvider.Create("ASP.NET Identity"))
            {
                //Code for email confirmation and reset password life time
                TokenLifespan = TimeSpan.FromHours(6)
            };
        }

        return appUserManager;
    }

Web.config

<system.web>
<compilation debug="true" targetFramework="4.5" />
<httpRuntime targetFramework="4.5.2" />
<machineKey decryptionKey="6F7DEAA44E5E06B6B7480B055FF39960D69AD32BCBB178EB" validationKey="17D85F8147CF02697D16B05726B9D68E473A3BF79EB79AE4E7EF8E84DA6CCC46BFFB975741DA4D1F37F0EF41651422A2745296BA953CE0370D4337E2900C2A18" validation="SHA1" decryption="Auto" />

, machineKey. machinKey, EmailConfirmation Azure.

.

Answer 1

, "+", "", , . .

    private string SanitizeToken(string token)
    {
        return token.Trim().Replace(" ", "+");
    }

.

Answer 2

"" "" .

 public static class UrlEncoding
{
    public static string Base64ForUrlEncode(this string str)
    {
        byte[] encbuff = Encoding.UTF8.GetBytes(str);
        return HttpServerUtility.UrlTokenEncode(encbuff);
    }

    public static string Base64ForUrlDecode(this string str)
    {
        byte[] decbuff = HttpServerUtility.UrlTokenDecode(str);
        return Encoding.UTF8.GetString(decbuff);
    }
}

: - : UrlEncoding.Base64ForUrlEncode(code) : UrlEncoding.Base64ForUrlDecode(code)