AUDIT.md

ADloader — Senior Code Audit Report v2

Date: 2026-02-26 | Auditor: Senior C#/Architecture Skill | Revision: 2.0

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✅ Strengths

#	Category	Detail
1	Architecture	Clean Architecture boundary fully respected. Domain has zero external dependencies.
2	SOLID / SRP	IDomainJoinService, IActiveDirectoryService, IUserConfirmation, IEnvironmentService — proper interface separation.
3	Result Pattern	Business errors use Result instead of exceptions — correct approach.
4	Logging	Dual-sink (File + UI) logging with structured messages. StreamWriter buffered I/O.
5	Pre-flight checks	Admin rights, network, DNS checks before the main operation.
6	User communication	Every step logged in Russian for the non-technical end user.
7	Error mapping	DomainJoinService maps Win32 error codes to human-readable Russian messages.
8	DI	Proper IServiceCollection configuration with correct lifetimes. ServiceProvider disposed on exit.
9	Self-contained	Single-file publish with app.manifest for UAC + Win10/11 + DPI awareness.
10	Threading	IUserConfirmation properly marshals to UI thread via Dispatcher.Invoke.
11	CommunityToolkit.Mvvm	Source generators + ObservableProperty + RelayCommand — modern MVVM approach.
12	Centralized versioning	Directory.Build.props manages version/author for all projects.

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📋 Status of All Findings

From Audit v1 (2026-02-25)

ID	Status	Detail
C1	✅ Fixed	Threading issue resolved — WpfUserConfirmation uses Dispatcher.Invoke.
C2	✅ Mitigated	SECURITY NOTE comment added to DomainJoinRequest.cs.
M1	✅ Fixed	File renamed from AdUser.cs to DomainJoinRequest.cs.
M2	✅ Fixed	UiLoggerProvider separated into its own file.
M3	✅ Fixed	FileLoggerProvider now uses buffered StreamWriter.
M4	✅ Fixed	Confirmation callback replaced with IUserConfirmation interface via DI.
M5	✅ Fixed	UserExistsAsync now logs warnings and re-throws PrincipalServerDownException.
M6	✅ Fixed	App.OnExit calls ServiceProvider.Dispose().
L2	✅ Fixed	Unnecessary using System; removed from Result.cs.

From Audit v2 (2026-02-26)

ID	Status	Detail
N1	✅ Fixed	Deleted empty Class1.cs from Infrastructure.
N2	✅ Fixed	UserExistsAsync now returns (bool Exists, string? Error) — error info preserved.
N3	✅ Fixed	Application TFM changed to net8.0 (no -windows dependency).
N4	✅ Fixed	IsRunningAsAdmin() and IsNetworkAvailable() extracted to IEnvironmentService / EnvironmentService.
N5	✅ Fixed	MainViewModel implements IDisposable, unsubscribes from LogMessageReceived.
N6	✅ Fixed	.gitignore created — publish/ excluded from VCS.
N7	✅ Fixed	Watermark/placeholder added to domain TextBox (corp.contoso.com).
N8	✅ Fixed	Shared PrimaryButtonStyle + DangerButtonStyle extracted to Window.Resources.
N9	✅ Fixed	Directory.Build.props created for centralized version/author metadata.

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📊 Summary Score

Metric	Score	Notes
Architecture	⭐⭐⭐⭐⭐	Clean Architecture fully enforced, no layer violations
Code Quality	⭐⭐⭐⭐⭐	Clean, no dead code, consistent naming
Security	⭐⭐⭐½	SECURITY NOTE добавлен, пароль всё ещё plain string (приемлемо для scope)
Error Handling	⭐⭐⭐⭐⭐	Result Pattern + Win32 mapping + rich error returns everywhere
UX	⭐⭐⭐⭐⭐	Catppuccin Mocha, watermark, loading overlay, логгирование
Logging	⭐⭐⭐⭐⭐	Buffered file + UI dual-sink, structured messages
Threading	⭐⭐⭐⭐⭐	Dispatcher.Invoke + Task.Run — корректно
Documentation	⭐⭐⭐⭐	XML-доки, README, аудит
Maintainability	⭐⭐⭐⭐⭐	Shared styles, centralized versioning, DI

Overall: 4.8 / 5 — Все найденные проблемы исправлены. Остаётся только одна заметка: пароль как plain string (допустимо для текущего scope утилиты).