Use DataProtectorTokenProvider as LinkUserTokenProvider.

modules/identity/src/Volo.Abp.Identity.AspNetCore/Volo/Abp/Identity/AspNetCore/AbpIdentityAspNetCoreModule.cs

@@ -15,6 +15,7 @@ namespace Volo.Abp.Identity.AspNetCore
             {
                 builder
                     .AddDefaultTokenProviders()
+                    .AddTokenProvider<LinkUserTokenProvider>(LinkUserTokenProviderConsts.LinkUserTokenProviderName)
                     .AddSignInManager<AbpSignInManager>();
             });
         }

modules/identity/src/Volo.Abp.Identity.AspNetCore/Volo/Abp/Identity/AspNetCore/LinkUserTokenProvider.cs

@@ -0,0 +1,19 @@
+using Microsoft.AspNetCore.DataProtection;
+using Microsoft.AspNetCore.Identity;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace Volo.Abp.Identity.AspNetCore
+{
+    public class LinkUserTokenProvider : DataProtectorTokenProvider<IdentityUser>
+    {
+        public LinkUserTokenProvider(
+            IDataProtectionProvider dataProtectionProvider,
+            IOptions<DataProtectionTokenProviderOptions> options,
+            ILogger<DataProtectorTokenProvider<IdentityUser>> logger)
+            : base(dataProtectionProvider, options, logger)
+        {
+
+        }
+    }
+}

modules/identity/src/Volo.Abp.Identity.Domain.Shared/Volo/Abp/Identity/LinkUserTokenProviderConsts.cs

@@ -0,0 +1,9 @@
+namespace Volo.Abp.Identity
+{
+    public static class LinkUserTokenProviderConsts
+    {
+        public static string LinkUserTokenProviderName { get; set; } = "AbpLinkUser";
+
+        public static string LinkUserTokenPurpose { get; set; } = "AbpLinkUserLogin";
+    }
+}

modules/identity/src/Volo.Abp.Identity.Domain/Microsoft/Extensions/DependencyInjection/AbpIdentityServiceCollectionExtensions.cs

@@ -33,8 +33,7 @@ namespace Microsoft.Extensions.DependencyInjection
             return services
                 .AddIdentityCore<IdentityUser>(setupAction)
                 .AddRoles<IdentityRole>()
-                .AddClaimsPrincipalFactory<AbpUserClaimsPrincipalFactory>()
-                .AddTokenProvider<LinkUserTokenProvider>(LinkUserTokenProvider.LinkUserTokenProviderName);
+                .AddClaimsPrincipalFactory<AbpUserClaimsPrincipalFactory>();
         }
     }
 }

modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUserLinkManager.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.Linq;
+using System.Text.Encodings.Web;
 using System.Threading;
 using System.Threading.Tasks;
 using Volo.Abp.Domain.Services;
@@ -128,10 +129,12 @@ namespace Volo.Abp.Identity
             using (CurrentTenant.Change(targetLinkUser.TenantId))
             {
                 var user = await UserManager.GetByIdAsync(targetLinkUser.UserId);
-                return await UserManager.GenerateUserTokenAsync(
+                var token = await UserManager.GenerateUserTokenAsync(
                     user,
-                    LinkUserTokenProvider.LinkUserTokenProviderName,
-                    LinkUserTokenProvider.LinkUserTokenPurpose);
+                    LinkUserTokenProviderConsts.LinkUserTokenProviderName,
+                    LinkUserTokenProviderConsts.LinkUserTokenPurpose);
+
+                return UrlEncoder.Default.Encode(token);
             }
         }
 
@@ -142,8 +145,8 @@ namespace Volo.Abp.Identity
                 var user = await UserManager.GetByIdAsync(targetLinkUser.UserId);
                 return await UserManager.VerifyUserTokenAsync(
                     user,
-                    LinkUserTokenProvider.LinkUserTokenProviderName,
-                    LinkUserTokenProvider.LinkUserTokenPurpose,
+                    LinkUserTokenProviderConsts.LinkUserTokenProviderName,
+                    LinkUserTokenProviderConsts.LinkUserTokenPurpose,
                     token);
             }
         }

modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/LinkUserTokenProvider.cs

@@ -1,17 +0,0 @@
-using System.Threading.Tasks;
-using Microsoft.AspNetCore.Identity;
-
-namespace Volo.Abp.Identity
-{
-    public class LinkUserTokenProvider : TotpSecurityStampBasedTokenProvider<IdentityUser>
-    {
-        public const string LinkUserTokenProviderName = "AbpLinkUser";
-
-        public const string LinkUserTokenPurpose = "AbpLinkUserLogin";
-
-        public override Task<bool> CanGenerateTwoFactorTokenAsync(UserManager<IdentityUser> manager, IdentityUser user)
-        {
-            return Task.FromResult(false);
-        }
-    }
-}

modules/identity/test/Volo.Abp.Identity.AspNetCore.Tests/Volo/Abp/Identity/AspNetCore/LinkUserTokenProvider_Tests.cs

@@ -13,7 +13,7 @@ namespace Volo.Abp.Identity.AspNetCore
             var identityOptions = GetRequiredService<IOptions<IdentityOptions>>().Value;
 
             identityOptions.Tokens.ProviderMap.ShouldContain(x =>
-                x.Key == LinkUserTokenProvider.LinkUserTokenProviderName &&
+                x.Key == LinkUserTokenProviderConsts.LinkUserTokenProviderName &&
                 x.Value.ProviderType == typeof(LinkUserTokenProvider));
         }
     }