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Add project files.
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‎BlazorServerCaptureUser.sln

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.5.33220.173
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BlazorServerCaptureUser", "BlazorServerCaptureUser\BlazorServerCaptureUser.csproj", "{021B9F11-9000-49E1-8521-40C80B1D667C}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{021B9F11-9000-49E1-8521-40C80B1D667C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{021B9F11-9000-49E1-8521-40C80B1D667C}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{021B9F11-9000-49E1-8521-40C80B1D667C}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{021B9F11-9000-49E1-8521-40C80B1D667C}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {BEC90ADA-F363-4EDC-BE1B-A26BDDB69C9C}
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EndGlobalSection
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EndGlobal

‎BlazorServerCaptureUser/App.razor

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<CascadingAuthenticationState>
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<Router AppAssembly="@typeof(App).Assembly">
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<Found Context="routeData">
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<AuthorizeRouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
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<FocusOnNavigate RouteData="@routeData" Selector="h1" />
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</Found>
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<NotFound>
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<PageTitle>Not found</PageTitle>
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<LayoutView Layout="@typeof(MainLayout)">
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<p role="alert">Sorry, there's nothing at this address.</p>
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</LayoutView>
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</NotFound>
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</Router>
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</CascadingAuthenticationState>

‎BlazorServerCaptureUser/Areas/Identity/Pages/Account/LogOut.cshtml

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@page
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@using Microsoft.AspNetCore.Identity
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@attribute [IgnoreAntiforgeryToken]
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@inject SignInManager<IdentityUser> SignInManager
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@functions {
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public async Task<IActionResult> OnPost()
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{
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if (SignInManager.IsSignedIn(User))
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{
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await SignInManager.SignOutAsync();
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}
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return Redirect("~/");
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}
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}

‎BlazorServerCaptureUser/Areas/Identity/Pages/Shared/_LoginPartial.cshtml

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@using Microsoft.AspNetCore.Identity
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@inject SignInManager<IdentityUser> SignInManager
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@inject UserManager<IdentityUser> UserManager
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@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
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<ul class="navbar-nav">
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@if (SignInManager.IsSignedIn(User))
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{
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<li class="nav-item">
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<a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Manage/Index" title="Manage">Hello @User.Identity?.Name!</a>
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</li>
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<li class="nav-item">
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<form class="form-inline" asp-area="Identity" asp-page="/Account/Logout" asp-route-returnUrl="/" method="post">
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<button type="submit" class="nav-link btn btn-link text-dark">Logout</button>
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</form>
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</li>
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}
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else
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{
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<li class="nav-item">
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<a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Register">Register</a>
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</li>
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<li class="nav-item">
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<a class="nav-link text-dark" asp-area="Identity" asp-page="/Account/Login">Login</a>
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</li>
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}
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</ul>

‎BlazorServerCaptureUser/Areas/Identity/RevalidatingIdentityAuthenticationStateProvider.cs

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using Microsoft.AspNetCore.Components;
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using Microsoft.AspNetCore.Components.Authorization;
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using Microsoft.AspNetCore.Components.Server;
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using Microsoft.AspNetCore.Identity;
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using Microsoft.Extensions.Options;
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using System.Security.Claims;
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namespace BlazorServerCaptureUser.Areas.Identity;
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public class RevalidatingIdentityAuthenticationStateProvider<TUser>
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: RevalidatingServerAuthenticationStateProvider where TUser : class
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{
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private readonly IServiceScopeFactory _scopeFactory;
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private readonly IdentityOptions _options;
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public RevalidatingIdentityAuthenticationStateProvider(
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ILoggerFactory loggerFactory,
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IServiceScopeFactory scopeFactory,
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IOptions<IdentityOptions> optionsAccessor)
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: base(loggerFactory)
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{
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_scopeFactory = scopeFactory;
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_options = optionsAccessor.Value;
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}
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protected override TimeSpan RevalidationInterval => TimeSpan.FromMinutes(30);
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protected override async Task<bool> ValidateAuthenticationStateAsync(
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AuthenticationState authenticationState, CancellationToken cancellationToken)
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{
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// Get the user manager from a new scope to ensure it fetches fresh data
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var scope = _scopeFactory.CreateScope();
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try
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{
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var userManager = scope.ServiceProvider.GetRequiredService<UserManager<TUser>>();
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return await ValidateSecurityStampAsync(userManager, authenticationState.User);
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}
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finally
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{
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if (scope is IAsyncDisposable asyncDisposable)
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{
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await asyncDisposable.DisposeAsync();
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}
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else
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{
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scope.Dispose();
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}
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}
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}
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private async Task<bool> ValidateSecurityStampAsync(UserManager<TUser> userManager, ClaimsPrincipal principal)
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{
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var user = await userManager.GetUserAsync(principal);
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if (user == null)
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{
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return false;
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}
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else if (!userManager.SupportsUserSecurityStamp)
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{
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return true;
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}
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else
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{
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var principalStamp = principal.FindFirstValue(_options.ClaimsIdentity.SecurityStampClaimType);
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var userStamp = await userManager.GetSecurityStampAsync(user);
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return principalStamp == userStamp;
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}
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}
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}

‎BlazorServerCaptureUser/BlazorServerCaptureUser.csproj

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<Project Sdk="Microsoft.NET.Sdk.Web">
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<PropertyGroup>
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<TargetFramework>net7.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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<UserSecretsId>aspnet-BlazorServerCaptureUser-e85a62ec-1a6b-484e-8e43-2e59fb19ac81</UserSecretsId>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="7.0.1" />
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<PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="7.0.1" />
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<PackageReference Include="Microsoft.AspNetCore.Identity.UI" Version="7.0.1" />
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<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.1" />
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<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.1" />
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</ItemGroup>
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</Project>

‎BlazorServerCaptureUser/Data/ApplicationDbContext.cs

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using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
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using Microsoft.EntityFrameworkCore;
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namespace BlazorServerCaptureUser.Data;
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public class ApplicationDbContext : IdentityDbContext
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{
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public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
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: base(options)
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{
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}
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}

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