3 Commits
Author SHA1 Message Date
maziggy 28a6ca6f4d Add CAP_NET_BIND_SERVICE everywhere the service is defined (#2549)
The Virtual Printer binds 990 and 322, below 1024, which a service running
as a normal user may not do without CAP_NET_BIND_SERVICE. Without it the
rest of Bambuddy works and only the VP is dead -- sockets never open, the
slicer never finds the printer, and the sole trace is one journal line.

332a7c6ac added the line to install/install.sh in March under the heading
"Fix install.sh missing AmbientCapabilities". Three other places define the
same unit and none of them got it: the manual template, the combined
Bambuddy + SpoolBuddy installer, and the unit the wiki tells you to paste.
The wiki additionally claimed the capability was always included.

Also diagnose it. The VP diagnostic reported only that nothing was listening
on 990, which reads identically to a port conflict. It now checks CapEff for
the capability and names it as the cause -- but stays quiet when the port is
answering (an iptables REDIRECT is the documented alternative and that host
works) and when the capability is held (the port is down for another reason
and blaming this would misdirect). Skips where there is no procfs rather
than putting a systemd instruction in front of a macOS user.
2026-08-04 08:33:30 +02:00
maziggy 5d6d928b3f fix(virtual-printer): #1429 net.info[*].ip cache leak + mode wire-value rename
#1429 (reported by @TrickShotMLG02, confirmed by @Mape6 on a flat single-LAN
  that rules out subnet / mDNS-reflector theories): with the physical printer
  off the slicer's "Send" landed in Bambuddy's archive; once the printer
  powered on every subsequent "Send" went straight to the printer's SD card
  and bypassed Bambuddy. Bundle analysis: mape6-before showed clean FTP
  receive + archive lines, mape6-after had zero FTP attempts to Bambuddy
  once the printer was online.

  Cause: mqtt_bridge.py::_resolve_client encoded _target_ip_uint32_le /
  _vp_ip_uint32_le ONLY on client-identity change and early-returned on
  every refresh tick when the same client object was still bound. If
  target_client.ip_address was empty at first bind (DB row stale, or client
  constructed before SSDP refresh filled it in), the encoding stayed None,
  the net.info[*].ip rewrite block was skipped, the cache filled with the
  real printer IP, sticky-key preservation kept the poisoned net value
  alive across every subsequent incremental push, and the slicer followed
  the leaked IP. Only Bambuddy-restart-with-printer-off cleared it — the
  workaround both reporters independently arrived at. Same shape on
  multi-NIC printers (X1C, H2D Pro): the rewrite only matched entries
  whose ip equalled _target_ip_uint32_le, so a secondary interface IP
  Bambuddy never saw would leak through unchanged.

  Bridge fix:
  - _resolve_client calls a new _refresh_ip_encoding() on every refresh
    tick, even when client identity is unchanged; self-heals once
    ip_address becomes valid.
  - _refresh_ip_encoding() sweeps the existing _latest_print_state when
    encoding becomes valid for the first time. Without the sweep,
    sticky-key preservation keeps the pre-arm poisoned cache alive
    forever — incremental pushes that don't include net carry the bad
    value forward.
  - _rewrite_net_info_ips() rewrites EVERY non-zero net.info[].ip entry
    that doesn't already equal the VP IP, not just entries matching
    _target_ip_uint32_le. Multi-NIC printers stop leaking secondary
    interfaces. Zero-IP placeholders are left alone so "active interface"
    detection still works.
  - INFO logging on encoding arm/update and on cache sweep so future
    bundles directly answer "did the rewrite fire?".

  Mode wire-value rename (#1429 follow-up, separate confusion source):
  - Both reporters' support bundles showed mode: immediate while the UI
    said "Archive"; @TrickShotMLG02 quoted: "I have no idea why it says
    immediate in the support-info.json file. In the webui the printer is
    set to archive". UI button "Archive" had always saved immediate, and
    "Queue" had always saved print_queue. Canonical wire values are now
    archive / review / queue / proxy, matching the button labels 1:1.
  - New normalize_vp_mode() + VP_MODE_* constants in
    models/virtual_printer.py; manager.py normalises on construction so
    a legacy row read pre-migration still dispatches correctly.
  - core/database.py::run_migrations rewrites existing virtual_printers
    and settings rows; idempotent (re-runs are no-ops); identical SQL
    under SQLite and Postgres.
  - API routes accept both legacy and canonical on input, normalise
    before storage. GET /settings/virtual-printer normalises on read so
    the frontend's mode-button highlight works for stale legacy values.
  - Three frontend VP components (VirtualPrinterSettings,
    VirtualPrinterCard, VirtualPrinterAddDialog) switched click handlers
    and type aliases to canonical; each got its own normalizeMode()
    helper so a stale-cached settings payload still highlights the right
    button. Two pre-existing `printer.mode === 'queue' ? 'review'`
    legacy mappings in VirtualPrinterCard were the source of a test
    failure caught mid-implementation where the new canonical 'queue'
    was being mis-aliased back to 'review' and hiding the auto-dispatch
    + force-color-match toggles.

  mode handler is NOT the dispatch bug: manager.py::_archive_file (the
  handler for archive mode) doesn't dispatch to the physical printer.
  The "files end up on the printer's SD card" symptom was the IP-leak
  from the bridge cache. The mode rename is purely clarity / support-
  bundle accuracy.
2026-06-02 14:33:20 +02:00
maziggy 6bc6a1d683 feat(virtual-printer): setup diagnostic + one-click slicer-certificate export
Two recurring virtual-printer support pains, both on the Virtual Printers
  settings page.

  Setup check: a stethoscope action on each VP card runs a pass/fail/warn/skip
  checklist — VP enabled, services running, bind interface still exists, access
  code set, target printer (proxy mode), and a live TCP probe of the FTP / MQTT
  / discovery ports on the bind IP. start_server swallows per-service bind
  errors, so a service object can exist while nothing is listening; probing the
  bind IP from outside is the only reliable signal and it catches the common
  "VP not visible in the slicer" bind-IP-conflict and stale-interface cases.

  Slicer certificate: virtual printers present a TLS cert signed by a shared CA
  the slicer must trust. Until now users had to docker exec in and cat
  bbl_ca.crt. A "Slicer certificate" row on the settings card now offers Copy
  and Download (bambuddy-virtual-printer-ca.crt) plus the SHA-256 fingerprint.
  GET /virtual-printers/ca-certificate returns only the public certificate; the
  CA private key never leaves the backend. The CA is generated on demand so the
  button works before the first VP is enabled.

  Backend:
  - services/virtual_printer/diagnostic.py — run_vp_diagnostic + port probes
  - schemas/virtual_printer.py — VPDiagnosticResult
  - CertificateService.get_ca_certificate_info() + manager helper
  - routes: GET /virtual-printers/ca-certificate, /{vp_id}/diagnostic

  Frontend:
  - VirtualPrinterDiagnosticModal.tsx; stethoscope button on VirtualPrinterCard
  - caCert row on VirtualPrinterList; utils/clipboard.ts (shared copy w/
    non-secure-context fallback + downloadTextFile), de-duplicating the
    existing FQDN-copy logic
  - vpDiagnostic.* + virtualPrinter.caCert.* across all 9 locales

  9 backend unit tests + 4 route integration tests + 6 frontend tests.
  Backend ruff clean, frontend build clean, i18n parity green.
2026-05-22 13:24:35 +02:00