Baustein 1: Server-Auth-Fix (Kapitel 10)
/api/auth/login und /api/auth/register akzeptierten zuvor jeden beliebigen Nutzernamen/Passwort und stellten ein gueltiges 30-Tage-JWT aus - konkrete, ausnutzbare Luecke bei echtem Deployment. - PasswordHasher (PBKDF2, Salt pro Nutzer) + UserStore (LiteDB) statt des ungeprueften Stubs - /api/auth/register ersatzlos entfernt (kein offener Registrierungs-Endpunkt fuer ein Einzel-/Familien-Deployment) - Neue Nutzer per CLI (dotnet LehrerApp.Api.dll create-user <name>), dokumentiert in docker/README.md - Neues Testprojekt LehrerApp.Api.Tests (bisher als einziges Projekt ohne Tests) Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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using System.Text;
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namespace LehrerApp.Api;
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internal static class Cli
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{
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public static Task<int> RunCreateUserAsync(string dataPath, string[] args)
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{
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if (args.Length < 2)
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{
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Console.Error.WriteLine("Verwendung: create-user <benutzername> [--password <passwort>]");
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return Task.FromResult(1);
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}
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var username = args[1];
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string? password = null;
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for (var i = 2; i < args.Length - 1; i++)
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if (args[i] == "--password") password = args[i + 1];
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password ??= ReadPassword("Passwort (mind. 12 Zeichen): ");
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if (string.IsNullOrWhiteSpace(password) || password.Length < 12)
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{
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Console.Error.WriteLine("Passwort muss mindestens 12 Zeichen lang sein.");
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return Task.FromResult(1);
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}
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Directory.CreateDirectory(dataPath);
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using var store = new UserStore(dataPath);
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if (!store.CreateUser(username, password))
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{
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Console.Error.WriteLine($"Nutzer '{username}' existiert bereits.");
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return Task.FromResult(1);
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}
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Console.WriteLine($"Nutzer '{username}' angelegt.");
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return Task.FromResult(0);
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}
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// docker exec ohne -it liefert kein TTY -> ReadKey wäre nicht möglich, dann normal lesen.
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private static string ReadPassword(string prompt)
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{
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Console.Write(prompt);
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if (Console.IsInputRedirected) return Console.ReadLine() ?? "";
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var sb = new StringBuilder();
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ConsoleKeyInfo key;
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while ((key = Console.ReadKey(intercept: true)).Key != ConsoleKey.Enter)
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{
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if (key.Key == ConsoleKey.Backspace && sb.Length > 0) { sb.Length--; Console.Write("\b \b"); }
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else if (!char.IsControl(key.KeyChar)) { sb.Append(key.KeyChar); Console.Write('*'); }
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}
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Console.WriteLine();
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return sb.ToString();
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}
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}
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