Добавлен вывод QR яндекса

PlaylistShared.Api/Controllers/PlaylistsController.cs

@@ -6,8 +6,8 @@ using PlaylistShared.Api.Extensions;
 using PlaylistShared.Api.Services;
 using PlaylistShared.Shared;
 using PlaylistShared.Shared.Enums;
-using PlaylistShared.Shared.Yandex;
 using PlaylistShared.Shared.SharedPlaylist;
+using PlaylistShared.Shared.Yandex;
 using YandexMusic;
 
 namespace PlaylistShared.Api.Controllers;
@@ -20,15 +20,18 @@ public class PlaylistsController : ControllerBase
     private readonly UserManager<ApplicationUser> _userManager;
     private readonly SharedPlaylistService _sharedService;
     private readonly YandexMusicService _yandexService;
+    private readonly YandexApiService _yandexApiService;
 
     public PlaylistsController(
         UserManager<ApplicationUser> userManager,
         SharedPlaylistService sharedService,
-        YandexMusicService yandexService)
+        YandexMusicService yandexService,
+        YandexApiService yandexApiService)
     {
         _userManager = userManager;
         _sharedService = sharedService;
         _yandexService = yandexService;
+        _yandexApiService = yandexApiService;
     }
 
     [HttpGet]
@@ -38,7 +41,7 @@ public class PlaylistsController : ControllerBase
         var user = await _userManager.FindByIdAsync(userId.ToString());
         if (user == null) return Unauthorized();
 
-        var decryptedToken = _yandexService.DecryptToken(user.YandexAccessToken);
+        var decryptedToken = _yandexApiService.DecryptToken(user.YandexAccessToken);
         if (string.IsNullOrEmpty(decryptedToken))
             return BadRequest(ApiResponse<object>.Fail(new ErrorResponse { StatusCode = 400, Message = "Токен Яндекс.Музыки не установлен или недействителен" }));
 
@@ -74,11 +77,9 @@ public class PlaylistsController : ControllerBase
         if (user == null) return Unauthorized();
 
         // Проверяем, что плейлист действительно принадлежит пользователю
-        var yandexClient = new YandexMusicClient();
-        await yandexClient.Authorize(_yandexService.DecryptToken(user.YandexAccessToken));
-        var playlist = await yandexClient.GetPlaylistAsync(request.OwnerUid, request.Kind);
-        if (playlist == null || playlist.Owner.Uid != yandexClient.Account.Uid)
-            return BadRequest(ApiResponse<object>.Fail(new ErrorResponse { StatusCode = 400, Message = "Плейлист не принадлежит вам" }));
+        var playlist = await _yandexService.GetPlaylistAsync(user, request.OwnerUid, request.Kind);
+        if (playlist == null)
+            return BadRequest(ApiResponse<object>.Fail(new ErrorResponse { StatusCode = 404, Message = "Плейлист не найден" }));
 
         var dto = new SharePlaylistDto
         {

PlaylistShared.Api/Controllers/YandexAccountController.cs

@@ -6,31 +6,32 @@ using PlaylistShared.Api.Extensions;
 using PlaylistShared.Api.Services;
 using PlaylistShared.Shared;
 using PlaylistShared.Shared.Profile;
+using PlaylistShared.Shared.Yandex;
 
 namespace PlaylistShared.Api.Controllers;
 
 [ApiController]
 [Route("api/[controller]")]
 [Authorize]
-public class YandexTokenController : ControllerBase
+public class YandexAccountController : ControllerBase
 {
     private readonly UserManager<ApplicationUser> _userManager;
-    private readonly YandexMusicService _yandexService;
+    private readonly YandexAuthService _yandexService;
 
-    public YandexTokenController(UserManager<ApplicationUser> userManager, YandexMusicService yandexService)
+    public YandexAccountController(UserManager<ApplicationUser> userManager, YandexAuthService yandexService)
     {
         _userManager = userManager;
         _yandexService = yandexService;
     }
 
-    [HttpPost("set")]
+    [HttpPost("token")]
     public async Task<ActionResult<ApiResponse<object>>> SetToken([FromBody] SetYandexTokenRequest request)
     {
         var userId = User.GetUserId();
         var user = await _userManager.FindByIdAsync(userId.ToString());
         if (user == null) return Unauthorized();
 
-        user.YandexAccessToken = _yandexService.EncryptToken(request.Token);
+        user.YandexAccessToken = _yandexService.Service.EncryptToken(request.Token);
         // Не храним refresh-токен, так как пользователь вводит только access-токен
         user.YandexTokenExpiryUtc = DateTime.UtcNow.AddMonths(1); // условно, т.к. срок жизни токена неизвестен
         await _userManager.UpdateAsync(user);
@@ -55,4 +56,35 @@ public class YandexTokenController : ControllerBase
             ExpiryUtc = user.YandexTokenExpiryUtc
         }));
     }
+
+    [HttpGet("qr")]
+    public async Task<ActionResult<ApiResponse<YandexAuthQr>>> GetQr()
+    {
+        var userId = User.GetUserId();
+        var user = await _userManager.FindByIdAsync(userId.ToString());
+        if (user == null) return Unauthorized();
+
+        var qr = await _yandexService.GenerateQrAsync(user);
+
+        return Ok(ApiResponse<YandexAuthQr>.Ok(qr));
+    }
+
+    [HttpGet("qr/{sessionId}")]
+    public async Task<IActionResult> CheckQr(int sessionId)
+    {
+        var userId = User.GetUserId();
+        var user = await _userManager.FindByIdAsync(userId.ToString());
+        if (user == null) return Unauthorized();
+
+        var checkResult = await _yandexService.CheckQrAsync(sessionId);
+        if (checkResult == null) return NotFound();
+
+        if (checkResult.Status == Shared.Enums.YandexAuthQrStatus.Authorized)
+        {
+            await SetToken(new() { Token = _yandexService.Service.Client.AuthStorage.Token });
+
+        }
+
+        return Ok(ApiResponse<YandexAuthQrCheck>.Ok(checkResult));
+    }
 }

PlaylistShared.Api/Controllers/YandexSearchController.cs

@@ -47,7 +47,7 @@ public class YandexSearchController : ControllerBase
             user = await _userManager.FindByIdAsync(userId.Value.ToString());
 
         // Если нет пользователя или у него нет токена, пробуем через shared_id
-        if (user == null || string.IsNullOrEmpty(_yandexService.DecryptToken(user.YandexAccessToken)))
+        if (user == null || string.IsNullOrEmpty(user.YandexAccessToken))
         {
             if (string.IsNullOrEmpty(shared_id))
                 return Unauthorized("Не установлен яндекс токен.");
@@ -63,8 +63,7 @@ public class YandexSearchController : ControllerBase
             user = owner;
         }
 
-        var decryptedToken = _yandexService.DecryptToken(user.YandexAccessToken);
-        if (string.IsNullOrEmpty(decryptedToken))
+        if (string.IsNullOrEmpty(user.YandexAccessToken))
             return BadRequest(ApiResponse<YandexSearchResult>.Fail(new ErrorResponse
             {
                 StatusCode = 400,

PlaylistShared.Api/Data/ApplicationDbContext.cs

@@ -16,6 +16,7 @@ public class ApplicationDbContext : IdentityDbContext<ApplicationUser, IdentityR
     public DbSet<TrackAdditionLog> TrackAdditionLogs => Set<TrackAdditionLog>();
     public DbSet<TrackRemovalLog> TrackRemovalLogs => Set<TrackRemovalLog>();
     public DbSet<UserSession> UserSessions => Set<UserSession>();
+    public DbSet<YandexAuthSession> YandexAuthSessions => Set<YandexAuthSession>();
     public DbSet<DataProtectionKey> DataProtectionKeys { get; set; }
 
     protected override void OnModelCreating(ModelBuilder builder)
@@ -102,5 +103,36 @@ public class ApplicationDbContext : IdentityDbContext<ApplicationUser, IdentityR
                   .OnDelete(DeleteBehavior.Cascade);
             entity.Property(e => e.AddedAtUtc).IsRequired();
         });
+
+
+        builder.Entity<YandexAuthSession>(entity =>
+        {
+            entity.HasKey(e => e.Id);
+            entity.Property(e => e.Id)
+                .ValueGeneratedOnAdd();
+            entity.HasOne(e => e.User)
+                  .WithMany()
+                  .HasForeignKey(e => e.UserId)
+                  .OnDelete(DeleteBehavior.SetNull);
+            entity.Property(e => e.QrCodeUrl)
+                .IsRequired()
+                .HasMaxLength(500);
+            entity.Property(e => e.SerializedCookies)
+                .IsRequired()
+                .HasColumnType("nvarchar(max)");
+            entity.Property(e => e.ConfirmedAt)
+                .IsRequired(false);
+            entity.Property(e => e.IsConfirmed)
+                .IsRequired()
+                .HasDefaultValue(false);
+            entity.Property(e => e.TrackId)
+                .HasMaxLength(100)
+                .IsRequired(false);
+            entity.Property(e => e.CsfrToken)
+                .HasMaxLength(200)
+                .IsRequired(false);
+            entity.HasIndex(e => e.UserId)
+                .HasDatabaseName("IX_YandexAuthSessions_UserId");
+        });
     }
 }

PlaylistShared.Api/Data/Migrations/20260419180136_AddYandexAuthSessions.Designer.cs

@@ -0,0 +1,668 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using PlaylistShared.Api.Data;
+
+#nullable disable
+
+namespace PlaylistShared.Api.Data.Migrations
+{
+    [DbContext(typeof(ApplicationDbContext))]
+    [Migration("20260419180136_AddYandexAuthSessions")]
+    partial class AddYandexAuthSessions
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.6")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("Microsoft.AspNetCore.DataProtection.EntityFrameworkCore.DataProtectionKey", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("FriendlyName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Xml")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("DataProtectionKeys");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole<System.Guid>", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(256)
+                        .HasColumnType("nvarchar(256)");
+
+                    b.Property<string>("NormalizedName")
+                        .HasMaxLength(256)
+                        .HasColumnType("nvarchar(256)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedName")
+                        .IsUnique()
+                        .HasDatabaseName("RoleNameIndex")
+                        .HasFilter("[NormalizedName] IS NOT NULL");
+
+                    b.ToTable("AspNetRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<System.Guid>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<Guid>("RoleId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetRoleClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<System.Guid>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<System.Guid>", b =>
+                {
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<string>("ProviderKey")
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<string>("ProviderDisplayName")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.HasKey("LoginProvider", "ProviderKey");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserLogins", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<System.Guid>", b =>
+                {
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<Guid>("RoleId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.HasKey("UserId", "RoleId");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetUserRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<System.Guid>", b =>
+                {
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<string>("Value")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("UserId", "LoginProvider", "Name");
+
+                    b.ToTable("AspNetUserTokens", (string)null);
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.ApplicationUser", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<int>("AccessFailedCount")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Email")
+                        .HasMaxLength(256)
+                        .HasColumnType("nvarchar(256)");
+
+                    b.Property<bool>("EmailConfirmed")
+                        .HasColumnType("bit");
+
+                    b.Property<bool>("LockoutEnabled")
+                        .HasColumnType("bit");
+
+                    b.Property<DateTimeOffset?>("LockoutEnd")
+                        .HasColumnType("datetimeoffset");
+
+                    b.Property<string>("NormalizedEmail")
+                        .HasMaxLength(256)
+                        .HasColumnType("nvarchar(256)");
+
+                    b.Property<string>("NormalizedUserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("nvarchar(256)");
+
+                    b.Property<string>("PasswordHash")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<bool>("PhoneNumberConfirmed")
+                        .HasColumnType("bit");
+
+                    b.Property<string>("RefreshToken")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("RefreshTokenExpiryUtc")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("SecurityStamp")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<bool>("TwoFactorEnabled")
+                        .HasColumnType("bit");
+
+                    b.Property<string>("UserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("nvarchar(256)");
+
+                    b.Property<string>("YandexAccessToken")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("YandexId")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("YandexRefreshToken")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("YandexTokenExpiryUtc")
+                        .HasColumnType("datetime2");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedEmail")
+                        .HasDatabaseName("EmailIndex");
+
+                    b.HasIndex("NormalizedUserName")
+                        .IsUnique()
+                        .HasDatabaseName("UserNameIndex")
+                        .HasFilter("[NormalizedUserName] IS NOT NULL");
+
+                    b.ToTable("AspNetUsers", (string)null);
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.FavoritePlaylist", b =>
+                {
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<Guid>("SharedPlaylistId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<DateTime>("AddedAtUtc")
+                        .HasColumnType("datetime2");
+
+                    b.HasKey("UserId", "SharedPlaylistId");
+
+                    b.HasIndex("SharedPlaylistId");
+
+                    b.ToTable("FavoritePlaylists");
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.SharedPlaylist", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<int>("AddPermission")
+                        .HasColumnType("int");
+
+                    b.Property<string>("CoverUrl")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<Guid>("CreatorUserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<bool>("IsDeleted")
+                        .HasColumnType("bit");
+
+                    b.Property<int>("PlayPermission")
+                        .HasColumnType("int");
+
+                    b.Property<int>("RemovePermission")
+                        .HasColumnType("int");
+
+                    b.Property<string>("ShareToken")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<string>("Title")
+                        .IsRequired()
+                        .HasMaxLength(255)
+                        .HasColumnType("nvarchar(255)");
+
+                    b.Property<DateTime>("UpdatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("ViewPermission")
+                        .HasColumnType("int");
+
+                    b.Property<string>("YandexPlaylistKind")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("nvarchar(50)");
+
+                    b.Property<string>("YandexPlaylistOwnerUid")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("nvarchar(50)");
+
+                    b.Property<string>("YandexPlaylistUuid")
+                        .IsRequired()
+                        .HasMaxLength(50)
+                        .HasColumnType("nvarchar(50)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CreatorUserId");
+
+                    b.HasIndex("ShareToken")
+                        .IsUnique();
+
+                    b.ToTable("SharedPlaylists");
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.TrackAdditionLog", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<DateTime>("AddedAtUtc")
+                        .HasColumnType("datetime2");
+
+                    b.Property<Guid?>("AddedByUserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<string>("SessionId")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(449)");
+
+                    b.Property<Guid>("SharedPlaylistId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<string>("TrackId")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(450)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("AddedByUserId");
+
+                    b.HasIndex("SessionId");
+
+                    b.HasIndex("SharedPlaylistId", "TrackId");
+
+                    b.ToTable("TrackAdditionLogs");
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.UserSession", b =>
+                {
+                    b.Property<string>("SessionId")
+                        .HasMaxLength(449)
+                        .HasColumnType("nvarchar(449)");
+
+                    b.Property<Guid?>("AssociatedUserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<string>("ClientIpAddress")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTime>("FirstSeenUtc")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime>("LastSeenUtc")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("UserAgent")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("SessionId");
+
+                    b.HasIndex("AssociatedUserId");
+
+                    b.ToTable("UserSessions");
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.YandexAuthSession", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime?>("ConfirmedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("CsfrToken")
+                        .HasMaxLength(200)
+                        .HasColumnType("nvarchar(200)");
+
+                    b.Property<bool>("IsConfirmed")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bit")
+                        .HasDefaultValue(false);
+
+                    b.Property<string>("QrCodeUrl")
+                        .IsRequired()
+                        .HasMaxLength(500)
+                        .HasColumnType("nvarchar(500)");
+
+                    b.Property<string>("SerializedCookies")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("TrackId")
+                        .HasMaxLength(100)
+                        .HasColumnType("nvarchar(100)");
+
+                    b.Property<Guid?>("UserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId")
+                        .HasDatabaseName("IX_YandexAuthSessions_UserId");
+
+                    b.ToTable("YandexAuthSessions");
+                });
+
+            modelBuilder.Entity("TrackRemovalLog", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<DateTime>("RemovedAtUtc")
+                        .HasColumnType("datetime2");
+
+                    b.Property<Guid?>("RemovedByUserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<string>("SessionId")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(449)");
+
+                    b.Property<Guid>("SharedPlaylistId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.Property<string>("TrackId")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(450)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RemovedByUserId");
+
+                    b.HasIndex("SessionId");
+
+                    b.HasIndex("SharedPlaylistId", "TrackId");
+
+                    b.ToTable("TrackRemovalLogs");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<System.Guid>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole<System.Guid>", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<System.Guid>", b =>
+                {
+                    b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<System.Guid>", b =>
+                {
+                    b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<System.Guid>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole<System.Guid>", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<System.Guid>", b =>
+                {
+                    b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.FavoritePlaylist", b =>
+                {
+                    b.HasOne("PlaylistShared.Api.Entities.SharedPlaylist", "SharedPlaylist")
+                        .WithMany()
+                        .HasForeignKey("SharedPlaylistId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", "User")
+                        .WithMany("FavoritePlaylists")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("SharedPlaylist");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.SharedPlaylist", b =>
+                {
+                    b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", "Creator")
+                        .WithMany("OwnedPlaylists")
+                        .HasForeignKey("CreatorUserId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.Navigation("Creator");
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.TrackAdditionLog", b =>
+                {
+                    b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", "AddedByUser")
+                        .WithMany()
+                        .HasForeignKey("AddedByUserId")
+                        .OnDelete(DeleteBehavior.Restrict);
+
+                    b.HasOne("PlaylistShared.Api.Entities.UserSession", "Session")
+                        .WithMany("TrackAdditionLogs")
+                        .HasForeignKey("SessionId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.HasOne("PlaylistShared.Api.Entities.SharedPlaylist", "SharedPlaylist")
+                        .WithMany("TrackAdditionLogs")
+                        .HasForeignKey("SharedPlaylistId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("AddedByUser");
+
+                    b.Navigation("Session");
+
+                    b.Navigation("SharedPlaylist");
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.UserSession", b =>
+                {
+                    b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", "User")
+                        .WithMany()
+                        .HasForeignKey("AssociatedUserId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.YandexAuthSession", b =>
+                {
+                    b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("TrackRemovalLog", b =>
+                {
+                    b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", "RemovedByUser")
+                        .WithMany()
+                        .HasForeignKey("RemovedByUserId")
+                        .OnDelete(DeleteBehavior.Restrict);
+
+                    b.HasOne("PlaylistShared.Api.Entities.UserSession", "Session")
+                        .WithMany("TrackRemovalLogs")
+                        .HasForeignKey("SessionId")
+                        .OnDelete(DeleteBehavior.Restrict)
+                        .IsRequired();
+
+                    b.HasOne("PlaylistShared.Api.Entities.SharedPlaylist", "SharedPlaylist")
+                        .WithMany()
+                        .HasForeignKey("SharedPlaylistId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("RemovedByUser");
+
+                    b.Navigation("Session");
+
+                    b.Navigation("SharedPlaylist");
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.ApplicationUser", b =>
+                {
+                    b.Navigation("FavoritePlaylists");
+
+                    b.Navigation("OwnedPlaylists");
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.SharedPlaylist", b =>
+                {
+                    b.Navigation("TrackAdditionLogs");
+                });
+
+            modelBuilder.Entity("PlaylistShared.Api.Entities.UserSession", b =>
+                {
+                    b.Navigation("TrackAdditionLogs");
+
+                    b.Navigation("TrackRemovalLogs");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

PlaylistShared.Api/Data/Migrations/20260419180136_AddYandexAuthSessions.cs

@@ -0,0 +1,53 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace PlaylistShared.Api.Data.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddYandexAuthSessions : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "YandexAuthSessions",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    UserId = table.Column<Guid>(type: "uniqueidentifier", nullable: true),
+                    QrCodeUrl = table.Column<string>(type: "nvarchar(500)", maxLength: 500, nullable: false),
+                    SerializedCookies = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    CreatedAt = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    ConfirmedAt = table.Column<DateTime>(type: "datetime2", nullable: true),
+                    IsConfirmed = table.Column<bool>(type: "bit", nullable: false, defaultValue: false),
+                    TrackId = table.Column<string>(type: "nvarchar(100)", maxLength: 100, nullable: true),
+                    CsfrToken = table.Column<string>(type: "nvarchar(200)", maxLength: 200, nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_YandexAuthSessions", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_YandexAuthSessions_AspNetUsers_UserId",
+                        column: x => x.UserId,
+                        principalTable: "AspNetUsers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.SetNull);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_YandexAuthSessions_UserId",
+                table: "YandexAuthSessions",
+                column: "UserId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "YandexAuthSessions");
+        }
+    }
+}

PlaylistShared.Api/Data/Migrations/ApplicationDbContextModelSnapshot.cs

@@ -17,7 +17,7 @@ namespace PlaylistShared.Api.Data.Migrations
         {
 #pragma warning disable 612, 618
             modelBuilder
-                .HasAnnotation("ProductVersion", "10.0.5")
+                .HasAnnotation("ProductVersion", "10.0.6")
                 .HasAnnotation("Relational:MaxIdentifierLength", 128);
 
             SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
@@ -407,6 +407,53 @@ namespace PlaylistShared.Api.Data.Migrations
                     b.ToTable("UserSessions");
                 });
 
+            modelBuilder.Entity("PlaylistShared.Api.Entities.YandexAuthSession", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime?>("ConfirmedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .HasColumnType("datetime2");
+
+                    b.Property<string>("CsfrToken")
+                        .HasMaxLength(200)
+                        .HasColumnType("nvarchar(200)");
+
+                    b.Property<bool>("IsConfirmed")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("bit")
+                        .HasDefaultValue(false);
+
+                    b.Property<string>("QrCodeUrl")
+                        .IsRequired()
+                        .HasMaxLength(500)
+                        .HasColumnType("nvarchar(500)");
+
+                    b.Property<string>("SerializedCookies")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("TrackId")
+                        .HasMaxLength(100)
+                        .HasColumnType("nvarchar(100)");
+
+                    b.Property<Guid?>("UserId")
+                        .HasColumnType("uniqueidentifier");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId")
+                        .HasDatabaseName("IX_YandexAuthSessions_UserId");
+
+                    b.ToTable("YandexAuthSessions");
+                });
+
             modelBuilder.Entity("TrackRemovalLog", b =>
                 {
                     b.Property<Guid>("Id")
@@ -558,6 +605,16 @@ namespace PlaylistShared.Api.Data.Migrations
                     b.Navigation("User");
                 });
 
+            modelBuilder.Entity("PlaylistShared.Api.Entities.YandexAuthSession", b =>
+                {
+                    b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.SetNull);
+
+                    b.Navigation("User");
+                });
+
             modelBuilder.Entity("TrackRemovalLog", b =>
                 {
                     b.HasOne("PlaylistShared.Api.Entities.ApplicationUser", "RemovedByUser")

PlaylistShared.Api/Entities/YandexAuthSession.cs

@@ -0,0 +1,16 @@
+namespace PlaylistShared.Api.Entities;
+
+public class YandexAuthSession
+{
+    public int Id { get; set; }
+    public Guid? UserId { get; set; }
+    public string QrCodeUrl { get; set; }
+    public string SerializedCookies { get; set; }
+    public DateTime CreatedAt { get; set; }
+    public DateTime? ConfirmedAt { get; set; }
+    public bool IsConfirmed { get; set; }
+    public string? TrackId { get; set; }
+    public string? CsfrToken { get; set; }
+
+    public ApplicationUser? User { get; set; }
+}

PlaylistShared.Api/PlaylistShared.Api.csproj

@@ -27,7 +27,7 @@
 		<PackageReference Include="Swashbuckle.AspNetCore" Version="10.1.7" />
 		<PackageReference Include="Swashbuckle.AspNetCore.Swagger" Version="10.1.7" />
 		<PackageReference Include="Swashbuckle.AspNetCore.SwaggerUI" Version="10.1.7" />
-		<PackageReference Include="YandexMusic" Version="0.0.8" />
+		<PackageReference Include="YandexMusic" Version="0.0.11" />
 	</ItemGroup>
 
 	<ItemGroup>

PlaylistShared.Api/Program.cs

@@ -92,14 +92,18 @@ public class Program
         builder.Services.AddAuthorization();
         builder.Services.AddScoped<JwtService>();
         builder.Services.AddScoped<UserSessionService>();
+
+        builder.Services.AddDataProtection()
+            .PersistKeysToDbContext<ApplicationDbContext>()
+            .SetApplicationName("PlaylistShared.Api");
+
+        builder.Services.AddScoped<YandexApiService>();
         builder.Services.AddScoped<YandexMusicService>();
+        builder.Services.AddScoped<YandexAuthService>();
         builder.Services.AddScoped<SharedPlaylistService>();
         builder.Services.AddScoped<TrackAdditionLogService>();
         builder.Services.AddScoped<TrackRemovalLogService>();
         builder.Services.AddScoped<FavoritesService>();
-        builder.Services.AddDataProtection()
-            .PersistKeysToDbContext<ApplicationDbContext>()
-            .SetApplicationName("PlaylistShared.Api");
 
         builder.Services.AddHttpClient();
 

PlaylistShared.Api/Services/Yandex/YandexApiService.cs

@@ -0,0 +1,138 @@
+using Microsoft.AspNetCore.DataProtection;
+using PlaylistShared.Api.Entities;
+using System.Net;
+using YandexMusic;
+using YandexMusic.API.Common;
+
+namespace PlaylistShared.Api.Services;
+
+/// <summary>
+/// Сервис для работы с API Яндекс Музыки в ASP.NET Core.
+/// </summary>
+public class YandexApiService : IDisposable
+{
+    private readonly IDataProtector _dataProtector;
+    private readonly HttpClient _httpClient;
+    private readonly YandexMusicClient _client;
+    private readonly CookieContainer _cookieContainer;
+
+    /// <summary>
+    /// Экземпляр клиента Яндекс Музыки.
+    /// </summary>
+    public YandexMusicClient Client => _client;
+
+    /// <summary>
+    /// Контейнер кук, используемый клиентом.
+    /// </summary>
+    public CookieContainer CookieContainer => _cookieContainer;
+
+    /// <summary>
+    /// Создаёт сервис с автоматическим созданием HttpClient (рекомендуется).
+    /// </summary>
+    public YandexApiService(IDataProtectionProvider provider, IWebProxy? proxy = null, TimeSpan? timeout = null)
+    {
+        _dataProtector = provider.CreateProtector("YandexTokens");
+        _cookieContainer = new();
+        _httpClient = YandexMusicHttpClientFactory.CreateDefault(
+            cookieContainer: _cookieContainer,
+            proxy: proxy,
+            timeout: timeout
+            );
+        _client = new YandexMusicClient(_httpClient);
+    }
+
+
+    public async Task<bool?> AuthAsync(ApplicationUser user)
+    {
+        if (string.IsNullOrEmpty(user.YandexAccessToken))
+            return null;
+
+        var decryptedToken = DecryptToken(user.YandexAccessToken);
+        if (decryptedToken == null)
+            return null;
+
+        return await _client.Authorize(decryptedToken);
+    }
+
+    /// <summary>
+    /// Засшифровывает и возвращает токен для хранения в базе данных.
+    /// </summary>
+    /// <param name="token"></param>
+    /// <returns></returns>
+    public string EncryptToken(string token) => _dataProtector.Protect(token);
+
+    /// <summary>
+    /// Расшифровывает ключ из базы данных. Если токен повреждён или недействителен, возвращает null.
+    /// </summary>
+    /// <param name="encryptedToken"></param>
+    /// <returns></returns>
+    public string DecryptToken(string encryptedToken)
+    {
+        try
+        {
+            return _dataProtector.Unprotect(encryptedToken);
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    /// <summary>
+    /// Устанавливает куки из строки для указанного домена.
+    /// </summary>
+    public void SetCookies(string cookieString, string domain)
+    {
+        var uri = new Uri(domain.StartsWith("http") ? domain : $"https://{domain}");
+        _cookieContainer.SetCookies(uri, cookieString);
+    }
+
+    /// <summary>
+    /// Получает все куки для указанного домена в виде строки.
+    /// </summary>
+    public string GetCookies(string domain)
+    {
+        var uri = new Uri(domain.StartsWith("http") ? domain : $"https://{domain}");
+        var cookies = _cookieContainer.GetCookies(uri);
+        return string.Join("; ", cookies.Cast<Cookie>().Select(c => $"{c.Name}={c.Value}"));
+    }
+
+    /// <summary>
+    /// Получает значение конкретной куки.
+    /// </summary>
+    public string? GetCookie(string domain, string cookieName)
+    {
+        var uri = new Uri(domain.StartsWith("http") ? domain : $"https://{domain}");
+        var cookie = _cookieContainer.GetCookies(uri)[cookieName];
+        return cookie?.Value;
+    }
+
+    private void UpdateHttpClientCookieContainer(CookieContainer container)
+    {
+        var handler = GetInnerHandler(_httpClient);
+        if (handler is HttpClientHandler httpHandler)
+            httpHandler.CookieContainer = container;
+    }
+
+    private static HttpMessageHandler GetInnerHandler(HttpClient client)
+    {
+        var field = client.GetType().GetField("_handler", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
+        if (field?.GetValue(client) is HttpMessageHandler handler)
+            return handler;
+        return new HttpClientHandler();
+    }
+
+    /// <summary>
+    /// Авторизуется с помощью OAuth-токена.
+    /// </summary>
+    public async Task<bool> AuthorizeAsync(string token)
+    {
+        return await _client.Authorize(token);
+    }
+
+    public void Dispose()
+    {
+        _client.Dispose();
+        _httpClient.Dispose();
+    }
+}

PlaylistShared.Api/Services/Yandex/YandexAuthService.cs

@@ -0,0 +1,123 @@
+using PlaylistShared.Api.Data;
+using PlaylistShared.Api.Entities;
+using PlaylistShared.Shared.Yandex;
+using System.Net;
+using System.Text.Json;
+using YandexMusic.API.Models.Account;
+
+namespace PlaylistShared.Api.Services;
+
+public class YandexAuthService
+{
+    private readonly YandexApiService _apiService;
+    private readonly ApplicationDbContext _dbContext;
+
+    public YandexApiService Service => _apiService;
+
+    public YandexAuthService(YandexApiService apiService, ApplicationDbContext dbContext)
+    {
+        _apiService = apiService;
+        _dbContext = dbContext;
+    }
+
+    internal async Task<YandexAuthQr> GenerateQrAsync(ApplicationUser user)
+    {
+        var client = _apiService.Client;
+        var qr = await client.GetAuthQRLink();
+        var trackId = client.AuthStorage.AuthToken.TrackId;
+        var csfrToken = client.AuthStorage.AuthToken.CsfrToken;
+
+        if (string.IsNullOrEmpty(qr))
+            throw new Exception("Не удалось получить QR-ссылку");
+
+        var cookiesJson = SerializeCookies(_apiService.CookieContainer);
+
+        var session = new YandexAuthSession
+        {
+            UserId = user.Id,
+            QrCodeUrl = qr,
+            SerializedCookies = cookiesJson,
+            CreatedAt = DateTime.UtcNow,
+            IsConfirmed = false,
+            TrackId = trackId,
+            CsfrToken = csfrToken,
+
+        };
+
+        _dbContext.YandexAuthSessions.Add(session);
+        await _dbContext.SaveChangesAsync();
+
+        return new YandexAuthQr
+        {
+            QrLink = qr,
+            SessionId = session.Id.ToString()
+        };
+    }
+
+    internal async Task<YandexAuthQrCheck?> CheckQrAsync(int sessionId)
+    {
+        var session = await _dbContext.YandexAuthSessions.FindAsync(sessionId);
+        if (session == null) return null;
+
+        RestoreCookies(_apiService.CookieContainer, session.SerializedCookies);
+        if (_apiService.Client.AuthStorage.AuthToken is null)
+        {
+            _apiService.Client.AuthStorage.AuthToken = new();
+        }
+
+        _apiService.Client.AuthStorage.AuthToken.CsfrToken = session?.CsfrToken ?? "";
+        _apiService.Client.AuthStorage.AuthToken.TrackId = session?.TrackId ?? "";
+
+        var status = await _apiService.Client.AuthorizeByQR();
+
+        if (status?.Status == YAuthStatus.Ok)
+        {
+            session.ConfirmedAt = DateTime.UtcNow;
+            session.IsConfirmed = true;
+            await _dbContext.SaveChangesAsync();
+
+            return new()
+            {
+                Status = Shared.Enums.YandexAuthQrStatus.Authorized,
+            };
+        }
+
+        return new()
+        {
+            Status = Shared.Enums.YandexAuthQrStatus.Pending,
+        };
+    }
+
+
+    private string SerializeCookies(CookieContainer container)
+    {
+        var domains = new[] { "yandex.ru", "passport.yandex.ru", ".yandex.ru" };
+        var allCookies = new List<object>();
+
+        var cookies = container.GetAllCookies();
+        foreach (Cookie cookie in cookies)
+        {
+            allCookies.Add(new { cookie.Name, cookie.Value, cookie.Domain, cookie.Path });
+        }
+
+        return JsonSerializer.Serialize(allCookies);
+    }
+
+    private void RestoreCookies(CookieContainer container, string serializedCookies)
+    {
+        var cookies = JsonSerializer.Deserialize<List<CookieData>>(serializedCookies);
+        foreach (var c in cookies)
+        {
+            var uri = new Uri($"{c.Domain}");
+            container.Add(uri, new Cookie(c.Name, c.Value, c.Path, c.Domain));
+        }
+    }
+
+    private class CookieData
+    {
+        public string Name { get; set; }
+        public string Value { get; set; }
+        public string Domain { get; set; }
+        public string Path { get; set; }
+    }
+}

PlaylistShared.Api/Services/Yandex/YandexMusicService.cs

@@ -95,20 +95,6 @@ public class YandexMusicService
         return track;
     }
 
-    public string EncryptToken(string token) => _dataProtector.Protect(token);
-
-    public string DecryptToken(string encryptedToken)
-    {
-        try
-        {
-            return _dataProtector.Unprotect(encryptedToken);
-        }
-        catch
-        {
-            return null;
-        }
-    }
-
     public async Task<YandexSearchResult> SearchAsync(
         ApplicationUser user,
         string query,

PlaylistShared.Pwa/Components/Profile/YandexAccount/YandexQrDialog.razor

@@ -0,0 +1,145 @@
+@using System.Threading
+@using PlaylistShared.Shared.DTO
+@using PlaylistShared.Shared.Yandex
+@inject HttpClient Http
+@inject ISnackbar Snackbar
+@inject IJSRuntime JsRuntime
+
+<MudDialog>
+    <TitleContent>
+        <MudText Typo="Typo.h6">Авторизация Яндекс.Музыки по QR</MudText>
+    </TitleContent>
+    <DialogContent>
+        @if (_qrUrl != null)
+        {
+            <div style="text-align: center;">
+                <MudText Typo="Typo.body2" Class="mb-2">Отсканируйте QR-код приложением Яндекс</MudText>
+                <MudImage Src="@_qrUrl" Style="max-width: 250px; border-radius: 12px; background-color: white;" />
+                <MudText Typo="Typo.body2" Class="mt-2" Color="Color.Secondary">
+                    Статус: @_statusText
+                </MudText>
+                @if (_isWaiting)
+                {
+                    <MudProgressCircular Indeterminate Class="mt-2" Size="Size.Small" />
+                }
+                @if (_isError)
+                {
+                    <MudAlert Severity="Severity.Error" Class="mt-4">
+                        @_errorMessage
+                    </MudAlert>
+                }
+            </div>
+        }
+        else
+        {
+            <MudProgressCircular Indeterminate />
+        }
+    </DialogContent>
+    <DialogActions>
+        <MudButton Variant="Variant.Text" OnClick="Cancel">Отмена</MudButton>
+    </DialogActions>
+</MudDialog>
+
+@code {
+    [CascadingParameter] IMudDialogInstance MudDialog { get; set; }
+
+    private string _qrUrl;
+    private string _sessionId;
+    private string _statusText = "Ожидание сканирования";
+    private bool _isWaiting = true;
+    private bool _isError = false;
+    private string _errorMessage = "";
+    private CancellationTokenSource _cts;
+
+    protected override async Task OnInitializedAsync()
+    {
+        await StartQrFlow();
+    }
+
+    private async Task StartQrFlow()
+    {
+        try
+        {
+            // 1. Получить QR и sessionId
+            var response = await Http.GetFromJsonAsync<ApiResponse<YandexAuthQr>>("/api/yandexaccount/qr");
+            if (!response.Success || response.Data == null)
+            {
+                ShowError("Не удалось получить QR-код");
+                return;
+            }
+
+            _qrUrl = response.Data.QrLink;
+            _sessionId = response.Data.SessionId;
+
+            // 2. Начать опрос статуса
+            _cts = new CancellationTokenSource();
+            _ = PollStatus(_cts.Token);
+            StateHasChanged();
+        }
+        catch (Exception ex)
+        {
+            ShowError(ex.Message);
+        }
+    }
+
+    private async Task PollStatus(CancellationToken token)
+    {
+        while (!token.IsCancellationRequested)
+        {
+            try
+            {
+                await Task.Delay(2000, token);
+                var statusResponse = await Http.GetFromJsonAsync<ApiResponse<YandexAuthQrCheck>>($"/api/yandexaccount/qr/{_sessionId}", token);
+                if (statusResponse?.Data != null)
+                {
+                    switch (statusResponse.Data.Status)
+                    {
+                        case Shared.Enums.YandexAuthQrStatus.Pending:
+                            _statusText = "Ожидание подтверждения...";
+                            break;
+                        case Shared.Enums.YandexAuthQrStatus.Authorized:
+                            _statusText = "Авторизация успешна!";
+                            _isWaiting = false;
+                            Snackbar.Add("Авторизация выполнена", Severity.Success);
+                            MudDialog.Close(DialogResult.Ok(true));
+                            _cts?.Cancel();
+                            return;
+                        case Shared.Enums.YandexAuthQrStatus.Expired:
+                            ShowError("Срок действия QR-кода истёк");
+                            return;
+                        case Shared.Enums.YandexAuthQrStatus.Error:
+                            ShowError("Ошибка авторизации");
+                            return;
+                    }
+                    StateHasChanged();
+                }
+            }
+            catch (TaskCanceledException) { break; }
+            catch (Exception ex)
+            {
+                ShowError(ex.Message);
+                break;
+            }
+        }
+    }
+
+    private void ShowError(string message)
+    {
+        _isError = true;
+        _errorMessage = message;
+        _isWaiting = false;
+        StateHasChanged();
+    }
+
+    private void Cancel()
+    {
+        _cts?.Cancel();
+        MudDialog.Close(DialogResult.Cancel());
+    }
+
+    public void Dispose()
+    {
+        _cts?.Cancel();
+        _cts?.Dispose();
+    }
+}

PlaylistShared.Pwa/Components/Profile/YandexAccount/YandexTokenDialog.razor

@@ -74,7 +74,7 @@
 
         _tokenErr = false;
 
-        var response = await Http.PostAsJsonAsync("/api/yandextoken/set", new SetYandexTokenRequest { Token = token });
+        var response = await Http.PostAsJsonAsync("/api/yandexaccount/token", new SetYandexTokenRequest { Token = token });
         if (response.IsSuccessStatusCode)
         {
             Snackbar.Add("Токен успешно обновлен", Severity.Success);

PlaylistShared.Pwa/Pages/Profile.razor

@@ -2,7 +2,7 @@
 @attribute [Authorize]
 @inject HttpClient Http
 @inject IDialogService DialogService
-@using PlaylistShared.Pwa.Components.Profile
+@using PlaylistShared.Pwa.Components.Profile.YandexAccount
 @using PlaylistShared.Shared.Profile
 
 <PageTitle>Профиль</PageTitle>
@@ -32,11 +32,15 @@
                             @_statusText
                         </MudText>
                     </MudStack>
-                    <MudButton Variant="Variant.Outlined"
-                               Color="Color.Primary"
-                               OnClick="OpenTokenDialog">
-                        @(_hasToken ? "Переподключить" : "Установить")
-                    </MudButton>
+                    
+                    <MudMenu EndIcon="@Icons.Material.Filled.ArrowDropDown"
+                            Label="@(_hasToken ? "Переподключить" : "Подключить")"
+                             Variant="Variant.Outlined"
+                             Dense
+                             Color="Color.Primary">
+                        <MudMenuItem OnClick="OpenTokenDialog">Token</MudMenuItem>
+                        <MudMenuItem OnClick="OpenQrDialog">Qr</MudMenuItem>
+                    </MudMenu>
                 </MudStack>
             </MudCardContent>
         </MudCard>
@@ -44,7 +48,7 @@
 </MudContainer>
 
 @code {
-    private string _email = "user@example.com"; // Загрузите из стейта или API
+    private string _email = "user@example.com";
     private string _statusText = "Загрузка...";
     private bool _hasToken;
 
@@ -54,7 +58,7 @@
     {
         try
         {
-            var response = await Http.GetFromJsonAsync<ApiResponse<YandexTokenStatus>>("/api/yandextoken/status");
+            var response = await Http.GetFromJsonAsync<ApiResponse<YandexTokenStatus>>("/api/yandexaccount/status");
             if (response?.Success == true)
             {
                 _hasToken = response.Data.HasToken;
@@ -72,4 +76,13 @@
 
         if (!result.Canceled) await LoadStatus();
     }
+
+    private async Task OpenQrDialog()
+    {
+        var options = new DialogOptions { CloseOnEscapeKey = true, MaxWidth = MaxWidth.Small, FullWidth = true };
+        var dialog = await DialogService.ShowAsync<YandexQrDialog>("", options);
+        var result = await dialog.Result;
+
+        if (!result.Canceled) await LoadStatus();
+    }
 }

PlaylistShared.Shared/Enums/YandexAuthQrStatus.cs

@@ -0,0 +1,12 @@
+using System.Text.Json.Serialization;
+
+namespace PlaylistShared.Shared.Enums;
+
+[JsonConverter(typeof(JsonStringEnumConverter))]
+public enum YandexAuthQrStatus
+{
+    Pending,
+    Authorized,
+    Expired,
+    Error,
+}

PlaylistShared.Shared/Yandex/YandexAuthQr.cs

@@ -0,0 +1,13 @@
+using System.Text.Json.Serialization;
+
+namespace PlaylistShared.Shared.Yandex;
+
+/// <summary>Результат авторизации QR</summary>
+public class YandexAuthQr
+{
+    [JsonPropertyName("qrLink")]
+    public string QrLink { get; set; } = string.Empty;
+
+    [JsonPropertyName("sessionId")]
+    public string SessionId { get; set; } = string.Empty;
+}

PlaylistShared.Shared/Yandex/YandexAuthQrCheck.cs

@@ -0,0 +1,11 @@
+using PlaylistShared.Shared.Enums;
+using System.Text.Json.Serialization;
+
+namespace PlaylistShared.Shared.Yandex;
+
+/// <summary>Результат авторизации QR</summary>
+public class YandexAuthQrCheck
+{
+    [JsonPropertyName("status")]
+    public YandexAuthQrStatus Status { get; set; } = YandexAuthQrStatus.Pending;
+}