Add authentication support with login/logout UI
- Introduced AuthService, IAuthApiClient, and AuthApiClient for managing authentication state and API calls (login, logout, session restore). - Added Login.razor and LoginLayout.razor for the login page, including styling and logic. - MainLayout.razor now checks authentication on load, restores sessions from sessionStorage, and redirects to /login if unauthenticated. Displays username and logout button when logged in. - Implemented JS interop (authStorage) for persisting authentication info in sessionStorage. - Registered AuthService, CookieContainer, and API clients in Program.cs to share cookies and support authentication. - Updated AppSettings and appsettings files to support separate ApiBaseUrl and DataApiBaseUrl. - Minor CSS improvements for username display in the top bar.
This commit is contained in:
OlgunR
106
DbFirst.BlazorWebApp/Components/Pages/Login.razor
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106
DbFirst.BlazorWebApp/Components/Pages/Login.razor
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@page "/login"
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@layout DbFirst.BlazorWebApp.Components.Layout.LoginLayout
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@rendermode InteractiveServer
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@inject IAuthApiClient AuthApiClient
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@inject AuthService AuthService
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@inject NavigationManager Navigation
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@inject IJSRuntime JS
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<PageTitle>Anmelden – DbFirst</PageTitle>
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<div class="login-container">
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<div class="login-card">
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<div class="login-header">
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<span class="login-brand">DbFirst</span>
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<p class="login-subtitle">Bitte melden Sie sich an</p>
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</div>
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<form @onsubmit="HandleLoginAsync" @onsubmit:preventDefault>
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<div class="login-field">
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<label class="login-label" for="username">Benutzername</label>
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<input id="username"
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type="text"
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class="login-text-input"
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placeholder="Benutzername eingeben"
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autocomplete="username"
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@bind="_username"
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@bind:event="oninput" />
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</div>
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<div class="login-field">
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<label class="login-label" for="password">Passwort</label>
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<input id="password"
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type="password"
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class="login-text-input"
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placeholder="Passwort eingeben"
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autocomplete="current-password"
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@bind="_password"
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@bind:event="oninput" />
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</div>
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@if (!string.IsNullOrEmpty(_errorMessage))
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{
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<div class="alert alert-danger mt-2 mb-1" role="alert">
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@_errorMessage
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</div>
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}
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<div class="login-actions">
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<button type="submit"
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class="login-submit-btn"
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disabled="@_isLoading">
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@(_isLoading ? "Wird angemeldet…" : "Anmelden")
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</button>
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</div>
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</form>
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</div>
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</div>
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@code {
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private string _username = string.Empty;
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private string _password = string.Empty;
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private string _errorMessage = string.Empty;
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private bool _isLoading;
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protected override void OnInitialized()
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{
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if (AuthService.IsAuthenticated)
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Navigation.NavigateTo("/");
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}
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private async Task HandleLoginAsync()
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{
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if (_isLoading) return;
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_errorMessage = string.Empty;
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if (string.IsNullOrWhiteSpace(_username) || string.IsNullOrWhiteSpace(_password))
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{
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_errorMessage = "Bitte Benutzername und Passwort eingeben.";
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return;
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}
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_isLoading = true;
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try
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{
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var success = await AuthApiClient.LoginAsync(_username, _password);
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if (success)
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{
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await JS.InvokeVoidAsync("authStorage.set", AuthService.UserName, AuthService.RawCookieHeader);
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Navigation.NavigateTo("/");
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}
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else
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{
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_errorMessage = "Anmeldung fehlgeschlagen. Bitte Benutzerdaten prüfen.";
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}
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}
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catch
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{
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_errorMessage = "Verbindungsfehler. Bitte später erneut versuchen.";
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}
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finally
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{
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_isLoading = false;
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}
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}
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}
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111
DbFirst.BlazorWebApp/Components/Pages/Login.razor.css
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111
DbFirst.BlazorWebApp/Components/Pages/Login.razor.css
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.login-container {
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display: flex;
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align-items: center;
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justify-content: center;
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min-height: calc(100vh - 2rem);
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}
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.login-card {
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width: 100%;
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max-width: 400px;
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padding: 2rem;
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border-radius: 8px;
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border: 1px solid var(--band-editor-border, #dee2e6);
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background-color: var(--band-editor-bg, #fff);
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box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
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}
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.login-header {
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text-align: center;
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margin-bottom: 1.75rem;
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}
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.login-brand {
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font-size: 1.8rem;
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font-weight: 700;
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color: #1b6ec2;
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letter-spacing: 0.02em;
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}
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.login-subtitle {
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margin-top: 0.35rem;
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margin-bottom: 0;
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font-size: 0.9rem;
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color: #6c757d;
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}
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.login-field {
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margin-bottom: 1rem;
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}
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.login-label {
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display: block;
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font-size: 0.85rem;
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font-weight: 500;
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margin-bottom: 0.3rem;
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}
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.login-actions {
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margin-top: 1.25rem;
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}
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/* Gemeinsamer Stil für Text- und Passwort-Eingabefelder */
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.login-text-input {
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display: block;
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width: 100%;
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height: 2.25rem;
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padding: 0.25rem 0.65rem;
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font-size: 1rem;
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font-family: inherit;
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line-height: 1.5;
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color: inherit;
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background-color: transparent;
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border: 1px solid #ced4da;
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border-radius: 4px;
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box-sizing: border-box;
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outline: none;
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transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
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}
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.login-text-input:focus {
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border-color: #86b7fe;
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box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
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}
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/* Submit-Button */
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.login-submit-btn {
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display: block;
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width: 100%;
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padding: 0.45rem 1rem;
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font-size: 1rem;
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font-family: inherit;
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font-weight: 500;
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color: #fff;
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background-color: #1b6ec2;
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border: 1px solid #1861ac;
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border-radius: 4px;
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cursor: pointer;
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transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
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}
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.login-submit-btn:hover:not(:disabled) {
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background-color: #1558a0;
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border-color: #1456a0;
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}
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.login-submit-btn:disabled {
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opacity: 0.65;
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cursor: not-allowed;
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}
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/* Dark-Mode */
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.app-dark .login-text-input {
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border-color: #555;
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color: #e8e8e8;
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background-color: #2d2d2d;
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}
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.app-dark .login-text-input:focus {
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border-color: #6cb6ff;
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box-shadow: 0 0 0 0.2rem rgba(108, 182, 255, 0.25);
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}
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