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Pull request overview
This pull request implements an Entity Framework 6 backing store for ASP.NET Core Identity, intended as a migration bridge allowing users to adopt ASP.NET Core Identity while maintaining their existing EF6 database infrastructure before migrating to EF Core.
Changes:
- Added EF6-based store implementations (RoleStoreEF6, UserStoreEF6) for ASP.NET Core Identity
- Created EF6-compatible entity models that extend ASP.NET Core Identity base classes
- Implemented a sample Blazor application demonstrating the EF6 Identity integration
Reviewed changes
Copilot reviewed 96 out of 141 changed files in this pull request and generated 5 comments.
Show a summary per file
| File | Description |
|---|---|
| RoleStoreEF6.cs | Implements role storage using EF6 with multiple generic overloads |
| IdentityEF6DbContext.cs | EF6 DbContext configured for ASP.NET Framework Identity schema compatibility |
| IdentityUserEF6.cs, IdentityRoleEF6.cs | Entity models extending ASP.NET Core Identity with EF6 navigation properties |
| IdentityEntityFramework6BuilderExtensions.cs | DI extension methods for registering EF6 stores |
| README.md | Documentation explaining EF6 vs EF Core distinction and usage |
| AuthIdentityCoreEF6/* | Complete sample Blazor application using the EF6 Identity implementation |
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| entry.State = EntityState.Modified; | ||
| } | ||
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| role.ConcurrencyStamp = Guid.NewGuid().ToString(); |
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The ConcurrencyStamp is being updated unconditionally on every update operation, but in the context of EF6 and ASP.NET Identity v1 schema compatibility (where ConcurrencyStamp is ignored per IdentityEF6DbContext.cs line 213-214), this stamp update won't be persisted to the database. This creates a mismatch where the in-memory object has a new stamp but the database doesn't reflect it, which could lead to inconsistent behavior in concurrency checking.
| cancellationToken.ThrowIfCancellationRequested(); | ||
| ThrowIfDisposed(); | ||
| // Query against Name with normalization in the query since NormalizedName is not mapped | ||
| return Roles.FirstOrDefaultAsync(r => r.Name.ToUpper() == normalizedName, cancellationToken); |
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The normalization logic uses ToUpper() for case-insensitive comparison, but this may not work correctly for all cultures and database collations. If the database uses a case-sensitive collation, this query will not match as expected. Additionally, ToUpper() in a LINQ query may not translate to SQL correctly in all scenarios with EF6. Consider using a culture-invariant comparison or ensuring the database collation matches the expected behavior.
| foreach (var claim in claims) | ||
| { | ||
| var matchedClaims = await Context.Set<TUserClaim>() | ||
| .Where(uc => uc.UserId.Equals(user.Id) && uc.ClaimValue == claim.Value && uc.ClaimType == claim.Type) | ||
| .ToListAsync(cancellationToken); | ||
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| foreach (var c in matchedClaims) | ||
| { | ||
| Context.Set<TUserClaim>().Remove(c); | ||
| } | ||
| } |
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This foreach loop immediately maps its iteration variable to another variable - consider mapping the sequence explicitly using '.Select(...)'.
| private async ValueTask LoadSharedKeyAndQrCodeUriAsync(ApplicationUser user) | ||
| { | ||
| // Load the authenticator key & QR code URI to display on the form | ||
| var unformattedKey = await UserManager.GetAuthenticatorKeyAsync(user); | ||
| if (string.IsNullOrEmpty(unformattedKey)) | ||
| { | ||
| await UserManager.ResetAuthenticatorKeyAsync(user); | ||
| unformattedKey = await UserManager.GetAuthenticatorKeyAsync(user); | ||
| } | ||
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| sharedKey = FormatKey(unformattedKey!); | ||
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| var email = await UserManager.GetEmailAsync(user); |
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Local scope variable 'user' shadows EnableAuthenticator.user.
| private async ValueTask LoadSharedKeyAndQrCodeUriAsync(ApplicationUser user) | |
| { | |
| // Load the authenticator key & QR code URI to display on the form | |
| var unformattedKey = await UserManager.GetAuthenticatorKeyAsync(user); | |
| if (string.IsNullOrEmpty(unformattedKey)) | |
| { | |
| await UserManager.ResetAuthenticatorKeyAsync(user); | |
| unformattedKey = await UserManager.GetAuthenticatorKeyAsync(user); | |
| } | |
| sharedKey = FormatKey(unformattedKey!); | |
| var email = await UserManager.GetEmailAsync(user); | |
| private async ValueTask LoadSharedKeyAndQrCodeUriAsync(ApplicationUser applicationUser) | |
| { | |
| // Load the authenticator key & QR code URI to display on the form | |
| var unformattedKey = await UserManager.GetAuthenticatorKeyAsync(applicationUser); | |
| if (string.IsNullOrEmpty(unformattedKey)) | |
| { | |
| await UserManager.ResetAuthenticatorKeyAsync(applicationUser); | |
| unformattedKey = await UserManager.GetAuthenticatorKeyAsync(applicationUser); | |
| } | |
| sharedKey = FormatKey(unformattedKey!); | |
| var email = await UserManager.GetEmailAsync(applicationUser); |
| if (identityContext == null) | ||
| { | ||
| userStoreType = typeof(UserOnlyStoreEF6<,,>).MakeGenericType(userType, contextType, keyType); | ||
| } | ||
| else | ||
| { | ||
| userStoreType = typeof(UserOnlyStoreEF6<,,,,,>).MakeGenericType( | ||
| userType, | ||
| contextType, | ||
| identityContext.GenericTypeArguments[2], // TKey | ||
| identityContext.GenericTypeArguments[5], // TUserClaim | ||
| identityContext.GenericTypeArguments[3], // TUserLogin | ||
| typeof(IdentityUserTokenEF6<>).MakeGenericType(identityContext.GenericTypeArguments[2])); // TUserToken | ||
| } |
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Both branches of this 'if' statement write to the same variable - consider using '?' to express intent better.
1 participant
This implements a backing store for ASP.NET Core Identity that uses EF6. This is intended for a bridge during migration to move to ASP.NET Core Identity before migrating to Entity Framework Core. By doing this, people can separate out the migration of identity and ef.