refactor: to enable oauth during registration, use the appropriate controller.

Endpoint/Controllers/Configuration/SetupController.cs

@@ -4,7 +4,6 @@ using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Data.Sqlite;
 using Microsoft.Extensions.Caching.Memory;
-using Microsoft.Extensions.Options;
 using Mirea.Api.Dto.Common;
 using Mirea.Api.Dto.Requests;
 using Mirea.Api.Dto.Requests.Configuration;
@@ -18,6 +17,7 @@ using Mirea.Api.Endpoint.Common.Services;
 using Mirea.Api.Endpoint.Configuration.Model;
 using Mirea.Api.Endpoint.Configuration.Model.GeneralSettings;
 using Mirea.Api.Endpoint.Configuration.Validation.Validators;
+using Mirea.Api.Security.Common.Domain;
 using Mirea.Api.Security.Common.Model;
 using Mirea.Api.Security.Services;
 using MySqlConnector;
@@ -26,13 +26,17 @@ using Serilog;
 using StackExchange.Redis;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
 using System.Data;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices;
 using System.Security;
 using System.Security.Cryptography;
+using System.Threading.Tasks;
 using CookieOptions = Microsoft.AspNetCore.Http.CookieOptions;
+using OAuthProvider = Mirea.Api.Security.Common.Domain.OAuthProvider;
 using PasswordPolicy = Mirea.Api.Dto.Common.PasswordPolicy;
 
 namespace Mirea.Api.Endpoint.Controllers.Configuration;
@@ -45,7 +49,7 @@ public class SetupController(
     IMaintenanceModeNotConfigureService notConfigureService,
     IMemoryCache cache,
     PasswordHashService passwordHashService,
-    IOptionsSnapshot<Admin> user) : BaseController
+    OAuthService oAuthService) : BaseController
 {
     private const string CacheGeneralKey = "config_general";
     private const string CacheAdminKey = "config_admin";
@@ -319,29 +323,54 @@ public class SetupController(
         return Ok(true);
     }
 
-    [HttpGet("UpdateAdminConfiguration")]
+    [HttpGet("HandleToken")]
     [TokenAuthentication]
-    public ActionResult UpdateAdminConfiguration()
+    public async Task<ActionResult> HandleToken([FromQuery][MinLength(2)] string token)
     {
-        if (string.IsNullOrEmpty(user.Value.Email))
-            return Ok();
+        var (user, error, isSuccess, provider) = await oAuthService.GetOAuthUser(new Security.Common.Model.CookieOptions
+        {
+            Domain = HttpContext.GetCurrentDomain(),
+            Path = UrlHelper.GetSubPathWithoutFirstApiName + "api"
+        }, HttpContext, token);
+
+        if (!isSuccess || user == null || provider == null)
+            throw new ControllerArgumentException(error ?? "Token processing error.");
 
         if (!cache.TryGetValue<Admin>(CacheAdminKey, out var admin))
         {
-            admin = user.Value;
+            admin = new Admin()
+            {
+                Email = user.Email ?? string.Empty,
+                Username = user.Username ?? string.Empty,
+                PasswordHash = string.Empty,
+                Salt = string.Empty,
+                OAuthProviders = new Dictionary<OAuthProvider, OAuthUser>
+                {
+                    {provider.Value, user}
+                }
+            };
+
             cache.Set(CacheAdminKey, admin);
             return Ok();
         }
 
-        admin!.OAuthProviders = user.Value.OAuthProviders;
-
-        if (string.IsNullOrEmpty(admin.Email))
-            admin.Email = user.Value.Email;
-
-        if (string.IsNullOrEmpty(admin.Username))
-            admin.Username = user.Value.Username;
+        if (admin!.OAuthProviders != null && admin.OAuthProviders.ContainsKey(provider.Value))
+            return Conflict(new ProblemDetails
+            {
+                Type = "https://tools.ietf.org/html/rfc9110#section-15.5.10",
+                Title = "Conflict",
+                Status = StatusCodes.Status409Conflict,
+                Detail = "This OAuth provider is already associated with the account.",
+                Extensions = new Dictionary<string, object?>()
+                {
+                    { "traceId", Activity.Current?.Id ?? HttpContext.TraceIdentifier }
+                }
+            });
 
+        admin.OAuthProviders ??= [];
+        admin.OAuthProviders.Add(provider.Value, user);
         cache.Set(CacheAdminKey, admin);
+
         return Ok();
     }
 

Endpoint/Controllers/V1/AuthController.cs

@@ -172,7 +172,6 @@ public class AuthController(IOptionsSnapshot<Admin> user, IOptionsSnapshot<Gener
     /// <param name="action">The action to be performed: Login or Bind.</param>
     /// <returns>If <see cref="OAuthAction.Bind"/> return Ok. If <see cref="OAuthAction.Login"/> return <see cref="TwoFactorAuthentication"/></returns>
     [HttpGet("HandleToken")]
-    [MaintenanceModeIgnore]
     [BadRequestResponse]
     public async Task<ActionResult> HandleToken([FromQuery][MinLength(2)] string token, [FromQuery] OAuthAction action)
     {

Security/Services/OAuthService.cs

@@ -332,7 +332,7 @@ public class OAuthService(ILogger<OAuthService> logger, Dictionary<OAuthProvider
         var requestInfo = new RequestContextInfo(context, cookieOptions);
 
         var result = await cache.GetAsync<OAuthUserExtension>(token, cancellation);
-        string tokenFailedKey = $"{requestInfo.Fingerprint}_oauth_token_failed";
+        var tokenFailedKey = $"{requestInfo.Fingerprint}_oauth_token_failed";
 
         if (result == null)
         {