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aspnetコアWebアプリケーションのアクセストークンを生成しようとしています。AspNet.Security.OpenIdConnect.Serverを使用すると、ユーザーは常にnullです。
public class CustomOpenIdConnectServerProvider : OpenIdConnectServerProvider
{
public override Task ValidateTokenRequest(ValidateTokenRequestContext context)
{
// Reject the token requests that don't use grant_type=password or grant_type=refresh_token.
if (!context.Request.IsPasswordGrantType() && !context.Request.IsRefreshTokenGrantType())
{
context.Reject(
error: OpenIdConnectConstants.Errors.UnsupportedGrantType,
description: "Only the resource owner password credentials and refresh token " +
"grants are accepted by this authorization server");
return Task.FromResult(0);
}
// Since there's only one application and since it's a public client
// (i.e a client that cannot keep its credentials private), call Skip()
// to inform the server the request should be accepted without
// enforcing client authentication.
context.Skip();
return Task.FromResult(0);
}
public override async Task HandleTokenRequest(HandleTokenRequestContext context)
{
// Resolve ASP.NET Core Identity's user manager from the DI container.
var manager = context.HttpContext.RequestServices.GetRequiredService<UserManager<User>>();
// Only handle grant_type=password requests and let ASOS
// process grant_type=refresh_token requests automatically.
if (context.Request.IsPasswordGrantType())
{
var user = await manager.FindByNameAsync(context.Request.Username);
if (user == null)
{
context.Reject(
error: OpenIdConnectConstants.Errors.InvalidGrant,
description: "Invalid credentials.");
return;
}
// Ensure the password is valid.
if (!await manager.CheckPasswordAsync(user, context.Request.Password))
{
if (manager.SupportsUserLockout)
{
await manager.AccessFailedAsync(user);
}
context.Reject(
error: OpenIdConnectConstants.Errors.InvalidGrant,
description: "Invalid credentials.");
return;
}
if (manager.SupportsUserLockout)
{
await manager.ResetAccessFailedCountAsync(user);
}
var identity = new ClaimsIdentity(context.Options.AuthenticationScheme);
// Note: the name identifier is always included in both identity and
// access tokens, even if an explicit destination is not specified.
identity.AddClaim(ClaimTypes.NameIdentifier, await manager.GetUserIdAsync(user));
identity.AddClaim(OpenIdConnectConstants.Claims.Subject, await manager.GetUserIdAsync(user));
// When adding custom claims, you MUST specify one or more destinations.
// Read "part 7" for more information about custom claims and scopes.
identity.AddClaim("username", await manager.GetUserNameAsync(user),
OpenIdConnectConstants.Destinations.AccessToken,
OpenIdConnectConstants.Destinations.IdentityToken);
var claims = await manager.GetClaimsAsync(user);
foreach (var claim in claims)
{
identity.AddClaim(claim.Type, claim.Value, OpenIdConnectConstants.Destinations.AccessToken,
OpenIdConnectConstants.Destinations.IdentityToken);
}
// Create a new authentication ticket holding the user identity.
var ticket = new AuthenticationTicket(
new ClaimsPrincipal(identity),
new AuthenticationProperties(),
context.Options.AuthenticationScheme);
// Set the list of scopes granted to the client application.
ticket.SetScopes(
/* openid: */ OpenIdConnectConstants.Scopes.OpenId,
OpenIdConnectConstants.Scopes.OfflineAccess,
/* email: */ OpenIdConnectConstants.Scopes.Email,
/* profile: */ OpenIdConnectConstants.Scopes.Profile);
// Set the resource servers the access token should be issued for.
ticket.SetResources("resource_server");
context.Validate(ticket);
}
}
これは問題なく動作し、アクセストークンを取得でき、ユーザーは正常に認証されます。私がここで直面している問題は、私がこれを行うときに承認されたアクションメソッドでそれは：var user = await _userManager.GetUserAsync(User);userの値は常にnullです！もちろん、私は有効なアクセストークンを持つAuthorizationヘッダーを渡しています。要求はAuthorizeと注釈が付けられた動作に問題なく入ります。 userの値はnullです。誰も私のコードで何が間違っているか教えてもらえますか？