Commit Graph

292 Commits

Author SHA1 Message Date
James Smith e8b94b6efc feat(drone): add RFDetector for rtl_433 and hackrf_sweep control-link detection
Implements RFDetector class that wraps rtl_433 (433/868MHz) and hackrf_sweep
(2.4/5.8GHz) subprocesses, emitting RFObservation objects onto a shared queue.
Includes signature matching, frequency band validation, and power thresholding.

- _handle_rtl433_line(): Parse JSON output, filter drone bands, emit observations
- _handle_hackrf_line(): Parse CSV output, average power levels, threshold at -90dBm
- start()/stop(): Manage subprocess threads for concurrent RF detection
- Graceful handling of missing tools (rtl_433, hackrf_sweep)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-03 12:52:03 +01:00
James Smith 5dda961dbb fix(drone): assign self._sniffer only after successful AsyncSniffer.start()
Prevents a non-running sniffer object being stored when start() raises
(e.g. permission denied or interface not found).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-03 12:42:42 +01:00
James Smith a6ce5d5426 feat(drone): add RemoteIDScanner with BLE/WiFi ASTM F3411 parsing
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-03 12:39:06 +01:00
James Smith 772b5d0973 feat(drone): add DroneCorrelator with TTL store and risk scoring
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-03 12:11:04 +01:00
James Smith b707468cb6 feat(drone): add data models and RF signature table 2026-05-03 11:45:59 +01:00
James Smith 58222b3474 fix(hackrf): resolve 'Tools Missing' on RPi when hackrf_info is present
Two root causes behind HackRF showing as unavailable when tools are installed:

1. get_tool_path() didn't search /usr/local/bin on Linux. HackRF tools built
   from source (as in the Dockerfile) land there, but the path wasn't checked
   when sudo/service environments have a restricted PATH.

2. check_hackrf() only tested hackrf_transfer, but the health check tests
   hackrf_info — both come from the same apt package but a user could have one
   visible and not the other. Now either binary confirms the tools are present.
   hackrf_transfer is still required for actual RX/TX operations.

Fixes #212

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-03 09:24:22 +01:00
James Smith a982ff5885 fix(wefax): include station JSON in Docker image and handle missing file
data/*.json was excluded by .dockerignore, so wefax_stations.json was
never copied into the container image. The volume mounts in docker-compose
only cover subdirectories (weather_sat, adsb, etc.), leaving the stations
file inaccessible at runtime — causing the /wefax/stations route to 500
and the station/frequency dropdowns to appear empty.

Also adds a graceful file-existence check in load_stations() so a missing
file logs a warning and returns an empty list instead of an unhandled
FileNotFoundError.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-21 20:51:24 +01:00
James Smith f12f4145ef docs(alerts): document webhook/notification system in USAGE.md
fix(db): use gevent-safe local storage for DB connections under gunicorn+gevent

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-15 12:45:58 +01:00
Smittix b01598753d fix(adsb): disable bias-T on stop and warn when toggled while running (#207)
* fix(adsb): disable bias-T on stop and warn when toggled while running

The RTL-SDR bias-T hardware register persists after the device is closed,
so toggling bias-T off in the UI and stopping the SDR had no effect on the
actual hardware — verified with a multimeter in issue #205.

- Add disable_bias_t_via_rtl_biast() to rtlsdr.py (mirrors enable, uses -b 0)
- Track adsb_bias_t_active in adsb.py; call disable on stop_adsb() so the
  hardware register is cleared when ADS-B is stopped
- Show an inline warning in the UI when the bias-T checkbox is toggled while
  any SDR mode is active, since the setting only takes effect at start time

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(lint): remove unused imports in tscm sweep.py

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-13 13:18:50 +01:00
James Smith 0210791c69 feat(export): AIS UDP NMEA forward and JSON export endpoints for AIS/ADS-B
AIS:
- New optional NMEA UDP forwarding via AIS-catcher's -u flag, configurable
  from the AIS sidebar (host + port). Lets OpenCPN and other NMEA tools
  receive live vessel data directly. All SDR builders updated.
- New GET /ais/vessels endpoint — clean JSON snapshot of tracked vessels
  for REST integration

ADS-B:
- New GET /adsb/aircraft endpoint — JSON snapshot of all tracked aircraft,
  with optional ?icao= and ?military=true filters. Response includes a
  reminder that port 30003 (SBS) is already available for tools like
  Virtual Radar Server and OpenCPN's AIS/target plugin.

Closes #90
2026-04-05 16:20:10 +01:00
James Smith 592e97719b feat(gain): normalize gain controls across modes
- Pager and sensor gain inputs changed from unvalidated text fields to
  number inputs with min/max/step constraints
- ADS-B dashboard now exposes a gain input in the tracking strip;
  previously gain was hardcoded to 40 dB with no user control
- validate_gain() ceiling raised from 50 to 102 dB to support HackRF
  (LNA 40 + VGA 62 = 102 dB combined) and LimeSDR (73 dB)
- sdrCapabilities gain_max values corrected: HackRF 62→102, Airspy 21→45
- onSDRTypeChanged() now propagates gain_max to all mode gain inputs so
  HTML constraints match the selected SDR's actual range

Closes #162
2026-04-05 16:02:03 +01:00
James Smith af2ab567ca Persist aircraft DB under data/adsb/ for Docker volume compatibility
Move aircraft_db.json and aircraft_db_meta.json from the project root
to data/adsb/ so they survive container restarts and rebuilds. Add
matching volume mount to both Docker Compose profiles.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-21 16:56:34 +00:00
James Smith 89c7c2fb07 Fix 5GHz WiFi scanning failures in deep scan and band detection
- Fix deep scan with 'All bands' never scanning 5GHz: band='all' now
  correctly passes --band abg to airodump-ng (previously no flag was
  added, causing airodump-ng to default to 2.4GHz-only)
- Fix APs first seen without channel info permanently stuck at
  band='unknown': _update_access_point now backfills channel, frequency,
  and band when a subsequent observation resolves the channel
- Fix legacy /wifi/scan/start combining mutually exclusive --band and -c
  flags: --band is now only added when no explicit channel list is given,
  and the interface is always placed as the last argument

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-20 21:50:47 +00:00
James Smith 34e1d25069 Fix ruff lint errors to unblock CI (import sorting, unused imports, style) 2026-03-20 13:51:30 +00:00
James Smith f05a5197cd Fix satellite target switching regression 2026-03-19 14:55:48 +00:00
James Smith 18b442eb21 Fix dashboard startup regressions and mode utilities 2026-03-19 10:37:21 +00:00
James Smith 62ee2252a3 Fix satellite dashboard refresh flows 2026-03-18 22:53:36 +00:00
James Smith 6fd5098b89 Clear stale telemetry and add transmitter fallbacks 2026-03-18 22:43:40 +00:00
James Smith 985c8a155a Harden satellite dashboard telemetry loading 2026-03-18 22:35:31 +00:00
James Smith d0402f4746 Refresh weather decoder docs for Meteor flow 2026-03-18 22:30:54 +00:00
James Smith 6dc0936d6d Align Meteor tracking defaults 2026-03-18 22:28:04 +00:00
James Smith 4cf394f92e Persist Meteor decode job state 2026-03-18 22:20:24 +00:00
James Smith e388baa464 Add Meteor LRPT ground station pipeline 2026-03-18 22:01:52 +00:00
James Smith f043baed9f Fix satellite dashboard page never loading by sending immediate SSE keepalive
Werkzeug's dev server buffers SSE response headers until the first body byte
is written. With keepalive_interval=30s, opening two SSE connections on
DOMContentLoaded (satellite stream + new ground station stream) meant the
browser waited 30 seconds before receiving any response bytes from either
connection. Browsers keep their loading indicator active while connections are
pending, causing the satellite dashboard to appear stuck loading.

Fix: yield an immediate keepalive at the start of sse_stream_fanout so every
SSE endpoint flushes headers + first data to the browser instantly.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-18 20:03:07 +00:00
James Smith 4607c358ed Add ground station automation with 6-phase implementation
Phase 1 - Automated observation engine:
- utils/ground_station/scheduler.py: GroundStationScheduler fires at AOS/LOS,
  claims SDR, manages IQBus lifecycle, emits SSE events
- utils/ground_station/observation_profile.py: ObservationProfile dataclass + DB CRUD
- routes/ground_station.py: REST API for profiles, scheduler, observations, recordings,
  rotator; SSE stream; /ws/satellite_waterfall WebSocket
- DB tables: observation_profiles, ground_station_observations, ground_station_events,
  sigmf_recordings (added to utils/database.py init_db)
- app.py: ground_station_queue, WebSocket init, scheduler startup in _deferred_init
- routes/__init__.py: register ground_station_bp

Phase 2 - Doppler correction:
- utils/doppler.py: generalized DopplerTracker extracted from sstv_decoder.py;
  accepts satellite name or raw TLE tuple; thread-safe; update_tle() method
- utils/sstv/sstv_decoder.py: replace inline DopplerTracker with import from utils.doppler
- Scheduler runs 5s retune loop; calls rotator.point_to() if enabled

Phase 3 - IQ recording (SigMF):
- utils/sigmf.py: SigMFWriter writes .sigmf-data + .sigmf-meta; disk-free guard (500MB)
- utils/ground_station/consumers/sigmf_writer.py: SigMFConsumer wraps SigMFWriter

Phase 4 - Multi-decoder IQ broadcast pipeline:
- utils/ground_station/iq_bus.py: IQBus single-producer fan-out; IQConsumer Protocol
- utils/ground_station/consumers/waterfall.py: CU8→FFT→binary frames
- utils/ground_station/consumers/fm_demod.py: CU8→FM demod (numpy)→decoder subprocess
- utils/ground_station/consumers/gr_satellites.py: CU8→cf32→gr_satellites (optional)

Phase 5 - Live spectrum waterfall:
- static/js/modes/ground_station_waterfall.js: /ws/satellite_waterfall canvas renderer
- Waterfall panel in satellite dashboard sidebar, auto-shown on iq_bus_started SSE event

Phase 6 - Antenna rotator control (optional):
- utils/rotator.py: RotatorController TCP client for rotctld (Hamlib line protocol)
- Rotator panel in satellite dashboard; silently disabled if rotctld unreachable

Also fixes pre-existing test_weather_sat_predict.py breakage:
- utils/weather_sat_predict.py: rewritten with self-contained skyfield implementation
  using find_discrete (matching what committed tests expected); adds _format_utc_iso
- tests/test_weather_sat_predict.py: add _MOCK_WEATHER_SATS and @patch decorators
  for tests that assumed NOAA-18 active (decommissioned Jun 2025, now active=False)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-18 17:36:55 +00:00
James Smith ed1461626b Prefetch SatNOGS transmitter cache at startup to fix loading delay 2026-03-18 15:00:03 +00:00
James Smith 75da95b38a Speed up bulk satellite import by using executemany in a single transaction 2026-03-18 14:43:21 +00:00
James Smith dc84e933c1 Fix setup.sh hanging on Python 3.14/macOS and add satellite enhancements
- Add --no-cache-dir and --timeout 120 to all pip calls to prevent hanging
  on corrupt/stale pip HTTP cache (cachecontrol .pyc issue)
- Replace silent python -c import verification with pip show to avoid
  import-time side effects hanging the installer
- Switch optional packages to --only-binary :all: to skip source compilation
  on Python versions without pre-built wheels (prevents gevent/numpy hangs)
- Warn early when Python 3.13+ is detected that some packages may be skipped
- Add ground track caching with 30-minute TTL to satellite route
- Add live satellite position tracker background thread via SSE fanout
- Add satellite_predict, satellite_telemetry, and satnogs utilities

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-18 11:09:00 +00:00
Smittix 9a9b1e9856 v2.26.9: add rtl_biast fallback for ADS-B bias-t on Blog V4 (#195)
When dump1090 lacks native --enable-biast support, the system now falls
back to rtl_biast (RTL-SDR Blog drivers) to enable bias-t power before
starting dump1090. The Blog V4's built-in LNA requires bias-t to
receive ADS-B signals.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-14 18:05:15 +00:00
Smittix 2bbf896e7c v2.26.5: fix database errors crashing entire UI (#190)
get_setting() now catches sqlite3.OperationalError and returns the
default value. Previously, an inaccessible database (e.g. root-owned
instance/ from sudo) caused inject_offline_settings to crash every
page render with 500 Internal Server Error.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-14 15:49:29 +00:00
Smittix 47a7376632 fix(auth): default admin password now matches README (admin:admin)
The default ADMIN_PASSWORD was an empty string, triggering random
password generation on first run — contradicting the README which
states admin:admin. Additionally, editing config.py after first run
had no effect since init_db() only seeded users on an empty table.

- Change default ADMIN_PASSWORD from '' to 'admin'
- Sync admin credentials from config on every startup so that
  changes to config.py or env vars take effect without wiping the DB

Fixes #186

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-13 14:30:04 +00:00
Smittix e00fbfddc1 v2.26.0: fix SSE fanout crash and branded logo FOUC
- Fix SSE fanout thread AttributeError when source queue is None during
  interpreter shutdown by snapshotting to local variable with null guard
- Fix branded "i" logo rendering oversized on first page load (FOUC) by
  adding inline width/height to SVG elements across 10 templates
- Bump version to 2.26.0 in config.py, pyproject.toml, and CHANGELOG.md

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-13 11:51:27 +00:00
Smittix 90281b1535 fix(modes): deep-linked mode scripts fail when body not yet parsed
ensureModeScript() used document.body.appendChild() to load lazy mode
scripts, but the preload for ?mode= query params runs in <head> before
<body> exists, causing all deep-linked modes to silently fail.

Also fix cross-mode handoffs (BT→BT Locate, WiFi→WiFi Locate,
Spy Stations→Waterfall) that assumed target module was already loaded.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-12 20:49:08 +00:00
thatsatechnique 0afa15bb16 Merge remote-tracking branch 'upstream/main' 2026-03-06 12:47:51 -08:00
thatsatechnique 7b4ad20805 fix(ook): address upstream PR review — SDR tracking, validation, cleanup, XSS
Critical:
- Pass sdr_type_str to claim/release_sdr_device (was missing 3rd arg)
- Add ook_active_sdr_type module-level var for proper device registry tracking
- Add server-side range validation on all timing params via validate_positive_int

Major:
- Extract cleanup_ook() function for full teardown (stop_event, pipes, process,
  SDR release) — called from both stop_ook() and kill_all()
- Replace Popen monkey-patching with module-level _ook_stop_event/_ook_parser_thread
- Fix XSS: define local _esc() fallback in ook.js, never use raw innerHTML
- Remove dead inversion code path in utils/ook.py (bytes.fromhex on same
  string that already failed decode — could never produce a result)

Minor:
- Status event key 'status' → 'text' for consistency with other modules
- Parser thread logging: debug → warning for missing code field and errors
- Parser thread emits status:stopped on exit (normal EOF or crash)
- Add cache-busting ?v={{ version }}&r=ook1 to ook.js script include
- Fix gain/ppm comparison: != '0' (string) → != 0 (number)

Tests: 22 → 33 (added start success, stop with process, SSE stream,
timing range validation, stopped-on-exit event)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-05 16:32:31 -08:00
Smittix 1403d49049 fix: restore HackRF One/Pro detection when PATH is restricted 2026-03-05 09:31:21 +00:00
thatsatechnique 9090b415cc Merge remote-tracking branch 'upstream/main' 2026-03-04 14:54:56 -08:00
Smittix 10077eee60 fix: HackRF One support — detection, ADS-B, waterfall, and error handling
- Parse hackrf_info stderr (newer firmware) and handle non-zero exit codes
- Fix gain_max from 62 to 102 (combined LNA 40 + VGA 62)
- Apply resolved readsb binary path for all SDR types, not just RTL-SDR
- Add HackRF/SoapySDR-specific error messages in ADS-B startup
- Add HackRF waterfall support via rx_sdr IQ capture + FFT
- Add 17 tests for HackRF detection and command builder

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-04 22:31:51 +00:00
thatsatechnique 93fb694e25 fix(ook): address code review findings from Copilot PR review
- Fix XSS: escape ASCII output in innerHTML via escapeHtml()
- Fix deadlock: use put_nowait() for queue ops under ook_lock
- Fix SSE leak: add ook to moduleDestroyMap so switching modes
  closes the EventSource
- Fix RSSI: explicit null check preserves valid zero values in
  JSON export
- Add frame cap: trim oldest frames at 5000 to prevent unbounded
  memory growth on busy bands
- Validate timing params: wrap int() casts in try/except, return
  400 instead of 500 on invalid input
- Fix PWM hint: correct to short=0/long=1 matching rtl_433
  OOK_PWM convention (UI, JS hints, and cheat sheet)
- Fix inversion docstring: clarify fallback only applies when
  primary hex parse fails, not for valid decoded frames

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-04 14:29:55 -08:00
thatsatechnique f771100a4c fix(ook): fix output panel layout, persist frames, wire global status bar
- Fix double-scroll by switching ookOutputPanel to flex layout
- Keep decoded frames visible after stopping (persist for review)
- Wire global Clear/CSV/JSON status bar buttons to OOK functions
- Hide default output pane in OOK mode (uses own panel)
- Add command display showing the active rtl_433 command
- Add JSON export and auto-scroll support
- Fix 0x prefix stripping in OOK hex decoder
- Fix PWM encoding hint text

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-04 14:28:49 -08:00
thatsatechnique 0c3ccac21c feat(ook): add timing presets, RSSI, bit-order suggest, pattern filter, TSCM link
- Timing presets: five quick-fill buttons (300/600, 300/900, 400/800, 500/1500, 500 MC)
  that populate all six pulse-timing fields at once — maps to CTF flag timing profiles
- RSSI per frame: add -M level to rtl_433 command; parse snr/rssi/level from JSON;
  display dB SNR inline with each frame; include rssi_db column in CSV export
- Auto bit-order suggest: "Suggest" button counts printable chars across all stored
  frames for MSB vs LSB, selects the winner, shows count — no decoder restart needed
- Pattern filter: live hex/ASCII filter input above the frame log; hides non-matching
  frames and highlights matches in green; respects current bit order
- TSCM integration: "Decode (OOK)" button in RF signal device details panel switches
  to OOK mode and pre-fills frequency — frontend-only, no backend changes needed

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-04 14:28:49 -08:00
thatsatechnique 4c282bb055 feat: add Generic OOK Signal Decoder module
New 'OOK Decoder' mode for capturing and decoding arbitrary OOK/ASK
signals using rtl_433's flex decoder with fully configurable pulse
timing. Covers PWM, PPM, and Manchester encoding schemes.

Backend (utils/ook.py, routes/ook.py):
- Configurable modulation: OOK_PWM, OOK_PPM, OOK_MC_ZEROBIT
- Full rtl_433 flex spec builder with user-supplied pulse timings
- Bit-inversion fallback for transmitters with swapped short/long mapping
- Optional frame deduplication for repeated transmissions
- SSE streaming via /ook/stream

Frontend (static/js/modes/ook.js, templates/partials/modes/ook.html):
- Live MSB/LSB bit-order toggle — re-renders all stored frames instantly
  without restarting the decoder
- Full-detail frame display: timestamp, bit count, hex, dotted ASCII
- Modulation selector buttons with encoding hint text
- Full timing grid: short, long, gap/reset, tolerance, min bits
- CSV export of captured frames
- Global SDR device panel injection (device, SDR type, rtl_tcp, bias-T)

Integration (app.py, routes/__init__.py, templates/):
- Globals: ook_process, ook_queue, ook_lock
- Registered blueprint, nav entries (desktop + mobile), welcome card
- ookOutputPanel in visuals area with bit-order toolbar

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-03-04 14:28:49 -08:00
Smittix 8d91c200a5 fix: HackRF users get misleading RTL-SDR error in rtlamr/sstv/weather-sat modes
Several modes didn't pass sdr_type to claim_sdr_device(), defaulting to
'rtlsdr' and triggering an rtl_test USB probe that fails for HackRF with
a confusing "check that the RTL-SDR is connected" message.

- Add sdr_type to frontend start requests for rtlamr, weather-sat, sstv-general
- Read sdr_type in backend routes and pass to claim/release_sdr_device()
- Add early guard returning clear "not yet supported" error for non-RTL-SDR
  hardware in modes that are hardcoded to RTL-SDR tools
- Make probe_rtlsdr_device error message device-type-agnostic

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-04 07:52:13 +00:00
Smittix 2f5f429e83 fix: airband start crash when device selector not yet populated
When the /devices fetch hasn't completed or fails, parseInt on an empty
select returns NaN which JSON-serializes to null. The backend then calls
int(None) and raises TypeError. Fix both layers: frontend falls back to
0 on NaN, backend uses `or` defaults so null values don't bypass the
fallback.

Also adds a short TTL cache to detect_all_devices() so multiple
concurrent callers on the same page load don't each spawn blocking
subprocess probes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-03 18:56:38 +00:00
Smittix 32f04d4ed8 fix: morse decoder splitting dahs into dits due to mid-element signal dropout
Add dropout tolerance (2 blocks ~40ms) to bridge brief signal gaps that
caused the state machine to chop dahs into multiple dits. Also fix scope
SNR display to use actual noise_ref instead of noise_floor.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-03 13:24:40 +00:00
Smittix de3f972aa2 fix: detect bias-t support before passing -T to rtl_sdr/rtl_fm
Stock rtl-sdr packages don't support the -T bias-tee flag (only
RTL-SDR Blog builds do). Passing -T to stock rtl_sdr causes an
immediate exit, breaking meteor scatter and waterfall modes.

Now probes the tool's --help output before adding -T, with a regex
that avoids false-matching "DVB-T" in the description text.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 21:52:54 +00:00
Smittix 7311dd10ab feat: add Meteor Scatter mode for VHF beacon ping detection
Full-stack meteor scatter monitoring mode that captures IQ data from
an RTL-SDR, computes FFT waterfall frames via WebSocket, and runs a
real-time detection engine to identify transient VHF reflections from
meteor ionization trails (e.g. GRAVES radar at 143.050 MHz).

Backend: MeteorDetector with EMA noise floor, SNR threshold state
machine (IDLE/DETECTING/ACTIVE/COOLDOWN), hysteresis, and CSV/JSON
export. WebSocket at /ws/meteor for binary waterfall frames, SSE at
/meteor/stream for detection events and stats.

Frontend: spectrum + waterfall + timeline canvases, event table with
SNR/duration/confidence, stats strip, turbo colour LUT. Uses shared
SDR device selection panel with conflict tracking.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 20:38:15 +00:00
Smittix 8379f42ec3 fix: close leaked file descriptors on mode switch (#169)
SSE EventSource connections for AIS, ACARS, VDL2, and radiosonde were
not closed when switching modes, causing fd exhaustion after repeated
switches. Also fixes socket leaks on exception paths in AIS/ADS-B
stream parsers, closes subprocess pipes in safe_terminate/cleanup, and
caches skyfield timescale at module level to avoid per-request fd churn.

Closes #169

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 13:38:21 +00:00
Smittix e756a00cc9 fix: add proactive DB writability check before init_db writes
sqlite3.connect() opens read-only files without error — the failure
only surfaces on the first write (INSERT). Add an upfront os.access()
check on both the directory and file, with a clear error showing the
owner and the exact chown command to fix it.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 10:03:11 +00:00
Smittix c35131462e fix: prevent root-owned database files when running with sudo
When start.sh runs via sudo, chown instance/ and data/ back to the
invoking user so the SQLite DB stays accessible without sudo. Also
adds a clear error message in get_connection() when the DB can't be
opened due to permissions.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 09:59:41 +00:00