From ac987781fab639fe40dce79576807cf606791e14 Mon Sep 17 00:00:00 2001
From: Sergey Karmanov <ppoocpel8888@gmail.com>
Date: Sun, 24 Dec 2023 04:58:01 +0300
Subject: [PATCH] =?UTF-8?q?=D0=94=D0=BE=D0=B1=D0=B0=D0=B2=D0=B8=D0=BB=20Go?=
 =?UTF-8?q?ogle=20auth?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 CyberBoom/Controllers/UserController.cs | 70 +++++++++++++++++++++++++
 CyberBoom/Program.cs                    | 10 +++-
 2 files changed, 78 insertions(+), 2 deletions(-)

diff --git a/CyberBoom/Controllers/UserController.cs b/CyberBoom/Controllers/UserController.cs
index 3512392..771cd20 100644
--- a/CyberBoom/Controllers/UserController.cs
+++ b/CyberBoom/Controllers/UserController.cs
@@ -1,6 +1,9 @@
 using System.IdentityModel.Tokens.Jwt;
 using System.Security.Claims;
+using System.Security.Cryptography;
+using System.Text;
 using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Authentication.Google;
 using Microsoft.AspNetCore.Authentication.JwtBearer;
 using Microsoft.AspNetCore.Authorization;
@@ -141,6 +144,73 @@ public class UsersController : ControllerBase
         return Ok(new { userWr.Id, Token = token });
     }
 
+    [AllowAnonymous]
+    [HttpGet("signin-google")]
+    public IActionResult SignInWithGoogle()
+    {
+        var properties = new AuthenticationProperties { RedirectUri = Url.Action("SignInWithGoogleCallback") };
+        return Challenge(properties, GoogleDefaults.AuthenticationScheme);
+    }
+
+    [AllowAnonymous]
+    [HttpGet("signin-google-callback")]
+    public async Task<IActionResult> SignInWithGoogleCallback()
+    {
+        var result = await HttpContext.AuthenticateAsync(GoogleDefaults.AuthenticationScheme);
+
+        if (result?.Succeeded != true)
+        {
+            return BadRequest("Ошибка аутентификации Google");
+        }
+
+        // Извлеките информацию о пользователе из результата аутентификации
+        var claims = result.Principal!.Identities
+            .FirstOrDefault(y => y.AuthenticationType == GoogleDefaults.AuthenticationScheme)?
+            .Claims;
+
+
+        var email = claims?.FirstOrDefault(x => x.Type == ClaimTypes.Email)!.Value;
+        var name = claims?.FirstOrDefault(x => x.Type == ClaimTypes.Name)!.Value;
+
+        var user = await _userManager.FindByEmailAsync(email!);
+        var role = "спикер";
+        if(user is null)
+        {
+            user = new User
+            {
+                Fio = name!,
+                Specialities = string.Empty,
+                TelegramBotUrl = string.Empty,
+                AvatarUrl = $"https://www.gravatar.com/avatar/{BitConverter.ToString(MD5.Create().ComputeHash(Encoding.UTF8.GetBytes(email!))).Replace("-", "").ToLowerInvariant()}?d=identicon",
+                UserName = name,
+                Email = email
+            };
+            var createResult = await _userManager.CreateAsync(user);
+
+            if (!createResult.Succeeded)
+                return BadRequest(createResult.Errors);
+
+            
+
+           
+
+            await AddUerToRole(user, role);
+        }
+        
+
+        var token = GetToken(user, role);
+
+        
+
+        // Здесь вы можете создать JWT или другой токен для аутентификации в вашем приложении
+        // и отправить его пользователю.
+
+        return Ok(new {
+            Token = token,
+            User = user
+        });
+    }
+
     [Authorize]
     [HttpGet]
     public async Task<IActionResult> GetUserData(string id)
diff --git a/CyberBoom/Program.cs b/CyberBoom/Program.cs
index 6ad0586..2751d19 100644
--- a/CyberBoom/Program.cs
+++ b/CyberBoom/Program.cs
@@ -7,6 +7,7 @@ using Microsoft.Extensions.FileProviders;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc.Authorization;
 using Microsoft.OpenApi.Models;
+using Microsoft.AspNetCore.Authentication.Google;
 
 
 TypeAdapterConfig<PutMeetingDto, Meeting>.NewConfig().Map(d => d.SpeackerImage, s => s.SpeackerImage.JoinFileNames()); 
@@ -34,14 +35,19 @@ builder.Services.AddIdentity<User, IdentityRole>()
 
 builder.Services.AddAuthentication(opt => {
     opt.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
-    opt.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
+    opt.DefaultChallengeScheme = GoogleDefaults.AuthenticationScheme;
 })
 .AddJwtBearer(options =>
 {
     var bearerOptions = new BearerAccessTokenOptions();
     options.RequireHttpsMetadata = bearerOptions.RequiredHttpsMetadata;
     options.TokenValidationParameters = bearerOptions.TokenValidationParameters;
-});
+})
+.AddGoogle(options =>
+{
+    options.ClientId = builder.Configuration["Google:ClientId"]!;
+    options.ClientSecret = builder.Configuration["Google:ClientSecret"]!;
+});;