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Add Identity/Auth to template #300 #487

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Jwt Authentication added with default Microsoft Identity

@ahmedanwar100
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Hi @ardalis, can you please review it

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@ardalis ardalis left a comment

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Overall looks great, thanks!

Only request is to don't put Identity stuff in Core (instead you can reference it using a UserId property on an appropriate entity, like in our case perhaps Contributor) and also keep IdentityDbContext separate from the regular/existing AppdbContext. Can you make those changes and I'll merge?

//We can use EncryptingCredentials options in SecurityTokenDescriptor and hence our JWT token will not be parsed by jwt.io site and it will only be decrypted only by our code.
//Hence you can secure your token and who can see it
var encryptionKey = Encoding.UTF8.GetBytes(_siteSetting.JwtSettings.EncryptKey); //must be 16 character
var encryptingCredentials = new EncryptingCredentials(new SymmetricSecurityKey(encryptionKey), SecurityAlgorithms.Aes128KW, SecurityAlgorithms.Aes128CbcHmacSha256);

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Useless assignment to local variable Warning

This assignment to
encryptingCredentials
is useless, since its value is never read.
{
return async context =>
{
var signInManager = context.HttpContext.RequestServices.GetRequiredService<SignInManager<User>>();

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This assignment to
signInManager
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Comment on lines 78 to 81
catch
{
return null;
}

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Generic catch clause Note

Generic catch clause.
// context.Fail("This token has no security stamp");

//Get UserId and check if user exists in db
var userId = claimsIdentity.GetUserId<int>();

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Dereferenced variable may be null Warning

Variable
claimsIdentity
may be null at this access because of
this
assignment.
{
if (request is null)
ThrowError("Request body is empty");
var user = await _userManager.FindByEmailAsync(request.Email); //userName/email can be used to find a unique user

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Variable
request
may be null at this access as suggested by
this
null check.
ThrowError("username or password is incorrect");

var jwt = await _jwtService.GenerateAsync(user);
user.LastLoginDate = DateTime.UtcNow;

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Variable
user
may be null at this access as suggested by
this
null check.
//TODO:CHECK FOR USERNAME EMPTY OR NULL
var newUser = new User
{
Age = request.Age,

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Dereferenced variable may be null Warning

Variable
request
may be null at this access as suggested by
this
null check.
@ahmedanwar100
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ahmedanwar100 commented Apr 13, 2023 via email

@ahmedanwar100
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ahmedanwar100 commented Apr 13, 2023 via email

@ardalis
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ardalis commented Apr 13, 2023

No rush, thanks

@ahmedanwar100
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ahmedanwar100 commented Apr 13, 2023 via email

@ahmedanwar100
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@ardalis can you please review it

});
if (!addRoleResult.Succeeded) { ThrowValidationErrors(addRoleResult.Errors); }
}
else

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This else does not look like it is necessary.

If I read correctly, you check to see if there is a role by that name already, if it doesn't you create it and only if it does exist do you then assign it to that user in this else clause.

Just removing the else around the inner code looks like it will solve the problem.

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Like I mentioned in one of my comments, I've essentially used the code in this pull request to implement Identity in my application which is based on the Clean Arch Template.

I can speak to the fact that the code written does in fact work, so there's that. 😄

For what it's worth, I moved the custom IdentityUser and IdentityRole implementations to the core project instead of the Infrastructure project. To do that, I needed to take a dependency on Microsoft.Extensions.Identity.Stores in the core project. In my eyes, that was a worth tradeoff allowing me to use the existing Event and Handler frameworks for these entities too. I did try to do things within the Infrastructure project but it was never as clearly defined as I wanted it to be.

@ardalis , I'll let you give the final thumbs up, but this is what I can share at least.

I suppose that this will lead to the inevitable ask for clarification on how to connect these two concepts. Tenancy and AppDatabase entity ownership etc...

/// </summary>
internal class JwtJwtBearerHelperEvents
{
public JwtBearerEvents GetJwtBeareEvents()

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Nit: Missing 'r' in Bearer.

OnChallenge = OnOnChallengeJwtBearerEvent()
};
}
private Func<AuthenticationFailedContext, Task> OnAuthenticationFailedJwtBearerEvent()

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Nit: Not sure what the 'JwtBearerEvent' suffix adds to this, I'd drop it for simplification.

@@ -0,0 +1,382 @@
// <auto-generated />
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Are these migrations necessary? For what it's worth, I've essentially used this pull request to bootstrap my applications and I do not use Migrations. Will these cause problems or confusion for new users of the template?

@ahmedanwar100
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@ardalis, any plan to review it 😁

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ardalis commented Sep 1, 2023

My plan is still to pull this into the new template - just need to find some time.

@ahmedanwar100
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Okay, then please find some time 🙂

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3 participants