15644cfdf8
Phase 09 complete — v0.2 NcProgramManager milestone done: - LicenseGenerator standalone console EXE (separate repo: license-generator.git) - keygen: RSA 2048-bit key pair generation - fingerprint: WMI machine fingerprint (Windows) - sign: RSA-SHA256 sign fingerprint -> .lic file - LicenseValidator.cs: PublicKeyXml PLACEHOLDER replaced with real vendor public key - Offline license system now production-ready end-to-end Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
107 lines
5 KiB
Markdown
107 lines
5 KiB
Markdown
# NcProgramManager
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## What This Is
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Console EXE (C# .NET 4.7.2) for upload/download of CNC programs to/from machine controllers. Supports Fanuc FOCAS, Heidenhain LSV2, Siemens Sinumerik FTP, and Mitsubishi FTP. Runs on Windows, distributed to licensed machine operators and integrators.
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## Core Value
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Machinists and operators transfer CNC programs to/from any controller without manual intervention or internet access.
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## Current State
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| Attribute | Value |
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|-----------|-------|
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| Type | Application |
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| Version | 0.2.0 |
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| Status | v0.2 complete |
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| Last Updated | 2026-05-17 |
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## Requirements
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### Core Features
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- Upload programs to CNC controller
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- Download programs from CNC controller
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- Local file management (organize/store programs on disk)
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- Multi-CN brand support (Fanuc + others)
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### Validated (Shipped)
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- [x] Fanuc FOCAS upload/download — initial
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- [x] AES encryption for program files
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- [x] CLI argument parsing
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- [x] Machine-bound license check (hardcoded)
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- [x] Multi-CN support — Fanuc, Heidenhain, Siemens, Mitsubishi — Phase 1–4
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- [x] 3-file management mode (Fanuc) via IFanucMachine — Phase 4
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- [x] NC program validation before upload (all 4 manufacturers) — Phase 5
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- [x] Project renamed FanucProgramManager → NcProgramManager — Phase 6
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### Validated (Shipped) — continued
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- [x] RSA offline license core: IMachineFingerprint, ILicenseValidator, LicenseValidator, LicenseFile — Phase 7
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- [x] License wired into Program.cs — RSA check at startup, license.lic next to EXE, -chiave= removed — Phase 8
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- [x] LicenseGenerator standalone tool (keygen, fingerprint, sign) — Phase 9
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- [x] Real RSA 2048-bit key pair generated; PublicKeyXml embedded in LicenseValidator.cs — Phase 9
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### Planned (Next)
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- [ ] ReadActiveProgramAsync / SelectMainProgram for Heidenhain and Siemens
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- [ ] Integration test against real hardware (Heidenhain, Siemens, Mitsubishi)
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### Out of Scope
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- Cloud sync
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- Web UI
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- Internet-dependent license validation
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## Constraints
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### Technical Constraints
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- .NET Framework 4.7.2 — max compatibility, no upgrade
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- Fanuc FOCAS via `fwlib32` (32-bit DLL, Windows-only)
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- Must run offline — no internet dependency at runtime
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- License validation must work without network
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### Business Constraints
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- Software must be license-protected (offline, machine-bound)
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- License approach: RSA-SHA256 asymmetric, machine fingerprint (WMI CPU+board), .lic file next to EXE
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- Vendor issues licenses with LicenseGenerator.exe; private key never distributed
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## Key Decisions
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| Decision | Rationale | Date | Status |
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|----------|-----------|------|--------|
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| .NET 4.7.2 | Max compatibility with operator machines | 2026-05-13 | Active |
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| Console EXE output | Simple deployment, scriptable | 2026-05-13 | Active |
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| Offline license only | Operators may have no internet on shop floor | 2026-05-13 | Active |
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| `#` = Warning in Fanuc/Mitsubishi | Macro variable indicator — valid in context | 2026-05-13 | Active |
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| Constructor injection for validator | Internal ctor accepts mock — enables unit testing without Windows DLL | 2026-05-13 | Active |
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| RSA asymmetric licensing | Private key vendor-only; public key embedded in binary — decompiler can't forge licenses | 2026-05-17 | Active |
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| LicenseGenerator as standalone separate repo | Vendor tool, never shipped to customers; separate lifecycle from NcProgramManager | 2026-05-17 | Active |
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| Heidenhain LSV2 port 19000 | Standard LSV2 port; needs real hardware verification | 2026-05-13 | Active |
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| Siemens FTP dir `/_N_MPF_DIR/` | Sinumerik standard MPF directory; FTP option must be enabled | 2026-05-13 | Active |
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## Success Metrics
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| Metric | Target | Current | Status |
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|--------|--------|---------|--------|
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| Program transfer correctness | 100% (byte-verified) | Unknown | Pending hardware test |
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| License validation (offline) | Works without network | RSA + LicenseGenerator complete; needs Windows hardware test | Done (pending HW test) |
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| Multi-CN support | ≥2 manufacturers | 4 (Fanuc/Heidenhain/Siemens/Mitsubishi) | Done |
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| NC validation coverage | All manufacturers | 4 manufacturers, 30+ tests | Done |
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## Tech Stack / Tools
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| Layer | Technology | Notes |
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|-------|------------|-------|
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| Language | C# | .NET Framework 4.7.2 |
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| UI | Console EXE | CLI args via InputArgs.cs |
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| CN Protocol (Fanuc) | FOCAS fwlib32 | 32-bit DLL, Windows-only |
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| CN Protocol (Heidenhain) | LSV2 over TCP | Port 19000, CRC-16/CCITT |
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| CN Protocol (Siemens) | FTP (FtpWebRequest) | ASCII mode, passive, `/_N_MPF_DIR/` |
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| CN Protocol (Mitsubishi) | FTP (FtpWebRequest) | Port 21, `/PRG/`, no extensions |
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| Validation | NcProgramValidator | Universal + per-manufacturer rules |
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| Encryption | AES (AesCrypt.cs) | Program file protection |
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| Licensing | RSA-SHA256 asymmetric | IMachineFingerprint + ILicenseValidator + LicenseGenerator; real key pair embedded |
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| Testing | NUnit 3.13.3 + Moq 4.18.4 | .NET 4.7.2 test project |
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---
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*PROJECT.md — Updated when requirements or context change*
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*Last updated: 2026-05-17 after Phase 9 (License Generator) — v0.2 complete*
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