Externl Login

src/Yavsc/Services/ExternalIdentityManager.cs

@@ -0,0 +1,28 @@
+using System.Security.Claims;
+using Microsoft.EntityFrameworkCore;
+using Yavsc.Interfaces;
+using Yavsc.Models;
+
+public class ExternalIdentityManager : IExternalIdentityManager
+{
+    private ApplicationDbContext _applicationDbContext;
+
+    public ExternalIdentityManager(ApplicationDbContext applicationDbContext)
+    {
+        _applicationDbContext = applicationDbContext;
+    }
+    public ApplicationUser AutoProvisionUser(string provider, string providerUserId, List<Claim> claims)
+    {
+        throw new NotImplementedException();
+    }
+
+    public async Task<ApplicationUser?> FindByExternaleProviderAsync(string provider, string providerUserId)
+    {
+        var user = await _applicationDbContext.AspNetUserLogins
+         .FirstOrDefaultAsync(
+             i => (i.LoginProvider == provider) && (i.ProviderKey == providerUserId)
+         );
+         if (user == null) return null;
+        return await _applicationDbContext.Users.FirstOrDefaultAsync(u=>u.Id == user.UserId);
+    }
+}