nc_program_manager/.paul/STATE.md

Project State

Project Reference

See: .paul/PROJECT.md (updated 2026-05-17)

Core value: Machinists transfer CNC programs to/from any controller without manual steps or internet Current focus: All phases complete — project fully documented

Current Position

Milestone: v0.2 NcProgramManager — COMPLETE Phase: 10 (readme-docs) — Complete Plan: 10-01 complete Status: All phases done. Project complete. Last activity: 2026-05-17 — Italian READMEs written for both repos

Progress:

• Milestone v0.1: [██████████] 100% (complete)
• Milestone v0.2: [██████████] 100% (complete)
• Phase 10 (readme-docs): [██████████] 100% (complete)

Loop Position

PLAN ──▶ APPLY ──▶ UNIFY
  ✓        ✓        ✓     [Loop complete — project fully documented]

What Was Built (v0.1 Multi-CN Release)

Phase 1 — CNC Abstraction

• Namespace: Fanuc_integration.Cnc.* → FanucProgramManager.Cnc.* (29 files)
• IFocasDialect extended: UploadStart/DownloadStart accept short fileType
• IFanucMachine created: extends ICncMachine with tool offset + work zero R/W
• CncManufacturer enum: Fanuc, Heidenhain, Siemens, Mitsubishi
• All 29 Cnc/**/*.cs files added to csproj

Phase 2 — Heidenhain LSV2

• HeidenhainConnectionConfig — IP, port 19000, credentials, timeout
• Lsv2Client — TCP framing, CRC-16/CCITT, login (SELECT+LOG_IN), ReceiveFile/SendFile
• HeidenhainMachine : ICncMachine — RunGuardedAsync pattern, state machine

Phase 3 — Siemens + Mitsubishi FTP

• SiemensConnectionConfig / SiemensFtpClient / SiemensMachine : ICncMachine
• MitsubishiConnectionConfig / MitsubishiFtpClient / MitsubishiMachine : ICncMachine

Phase 4 — Wiring

• CncMachineFactory — creates right ICncMachine from InputArgs
• InputArgs — added manufacturer, username, password fields
• Program.cs — full rewrite using ICncMachine; Fanuc 3-file via IFanucMachine cast

Phase 5 — NC Validator

• ValidationSeverity / ValidationError / ValidationResult model types
• INcProgramValidator + NcProgramValidator (5 universal + per-manufacturer rules)
• Validator injected into all 4 machine classes; upload blocked on Error severity
• NcProgramValidatorTests — 30+ NUnit tests

Test Infrastructure

• NcProgramManager.Tests/ — NUnit 3.13.3 + Moq 4.18.4, .NET 4.7.2
• FtpServerStub + Lsv2ServerStub — in-process TCP stubs
• Unit + integration tests; Fanuc FOCAS tests [Ignore]d (Windows-only DLL)

What Was Built (v0.2 NcProgramManager — complete)

Phase 06 — Rename Cleanup

• Namespace: FanucProgramManager.* → NcProgramManager.* (all files)
• Project renamed, test folder renamed, dead FANUCMachine.cs deleted

Phase 07 — License Core

• IMachineFingerprint / ILicenseValidator interfaces
• MachineFingerprint — WMI CPU/BIOS fingerprint
• LicenseFile.TryRead — reads .lic file, returns base64 signature
• LicenseValidator.Validate — RSA-SHA256 verify
• LicenseValidatorTests — 6 unit tests (testable via internal ctor injection)

Phase 08 — License Integration

• Program.cs — RSA check wired at startup; checkLicense deleted; license.lic next to EXE
• InputArgs.cs — -chiave= field removed

Phase 09 — License Generator

• LicenseGenerator standalone console tool (separate repo: ssh://git@3nt-git.duckdns.org:222/davide.trentin/license-generator.git)
• Commands: keygen (RSA 2048-bit pair), fingerprint (WMI, Windows), sign (RSA-SHA256 → .lic)
• Real public key embedded in Licensing/LicenseValidator.cs (PLACEHOLDER removed)
• private.key.xml at ~/Documents/mine/c#/LicenseGenerator/ (gitignored — keep secure)

Phase 10 — README Docs

• README.md in NcProgramManager root — Italian, operator-facing: CLI args, license setup, examples, controllers table
• README.md in LicenseGenerator repo — Italian, vendor-facing: keygen first-run, 4-step license issuance workflow, commands table, security

CLI Args (current)

• -manufacturer=fanuc|heidenhain|siemens|mitsubishi (default: fanuc)
• -azione= — action (Scarica/Invia/etc.)
• -ip= — CNC IP
• -porta= — port
• -username= (Heidenhain/Siemens/Mitsubishi)
• -password= (Heidenhain/Siemens/Mitsubishi)
• License: place license.lic next to the EXE (no CLI arg)

Accumulated Context

Decisions

• .NET 4.7.2 locked — max compatibility
• RSA asymmetric offline licensing: private key vendor-only, public key embedded in binary
• license.lic always at AppDomain.CurrentDomain.BaseDirectory — no CLI override
• RSACryptoServiceProvider + SHA256CryptoServiceProvider (not HashAlgorithmName) — .NET 4.7.2 compat
• Constructor injection pattern: internal ctor accepts key XML — testable without Windows WMI
• LicenseGenerator: standalone separate repo — vendor tool, never shipped to customers
• Heidenhain: LSV2 port 19000, needs real hardware testing
• Siemens: FTP /_N_MPF_DIR/, needs Sinumerik FTP option enabled on machine
• # = Warning in Fanuc/Mitsubishi — macro variable indicator

Deferred Issues

• AesCrypt.cs dead code — remove in future cleanup phase
• Heidenhain: ReadActiveProgramAsync / SelectMainProgram not implemented
• Siemens: same as Heidenhain
• Build + integration not verifiable on Linux (fwlib32 Windows-only)
• MachineFingerprint WMI + full license flow — needs real Windows hardware test
• private.key.xml owned by root — run sudo chown $USER ~/Documents/mine/c#/LicenseGenerator/private.key.xml

Blockers/Concerns

None — project complete.

Git State

Last commit (NcProgramManager): see git log --oneline LicenseGenerator repo: commit 2ef68dd — feat: initial LicenseGenerator Branch: main

Session Continuity

Last session: 2026-05-17 Stopped at: Phase 10 complete — all phases done Next action: git commit docs(10-readme-docs), then project is fully shipped Resume file: .paul/phases/10-readme-docs/10-01-SUMMARY.md

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STATE.md — Updated after every significant action