Fixes to the api_v3 package split (PR #553), one per finding verified against the actual code: - __init__.py: _redact_credentials only blanked scalar values under a credential-named key; a bare list of secrets under such a key (e.g. tokens: ["a", "b"]) passed through untouched, since the list branch recursed with no memory that its key looked like a credential. Nested dicts still walk normally (a documented, tested behaviour -- a container like secrets: {api_key: ..., note: ...} is a section name, not a value to blank outright), but any value reached under a credential-shaped key is now actually blanked. - __init__.py: the OAuth helper script's raw stderr/stdout went to logger.error unredacted (CWE-532) right next to a comment claiming this was deliberate; the HTTP response already used the existing redact_text helper. Routed the log line through the same helper. - __init__.py / starlark.py: the standalone Starlark manifest fallback (used when the plugin instance isn't loaded) read-modified-wrote manifest.json with no lock, unlike StarlarkAppsPlugin._update_manifest_safe (plugin-repos/starlark-apps/manager.py), which already holds an flock for the same file when the plugin is loaded. Added _starlark_manifest_lock, mirroring that pattern, and wrapped every standalone read-modify-write call site in it. The app-config update route also wrote config.json and the manifest as two separate, non-transactional writes (a second, distinct finding at the same call site); config.json is now rolled back if the manifest write that follows it fails. - backup.py: restore options used bare bool() on values from the request, so {"restore_secrets": "false"} restored secrets anyway (bool("false") is True). Switched to the existing _coerce_to_bool helper already used for this exact purpose elsewhere in the package. - config.py: an automated import-rewrite mangled four user-facing validation strings and their neighbouring comments -- "Invalid start time" had become "Invalid start _pkg.time" (and likewise for "end time") in both the schedule and dim-schedule per-day validation paths. - display.py: `import _pkg.time as time_module` -- _pkg is a local alias for the package, not a real importable module, so this raised ModuleNotFoundError whenever a caller restarted an already-running display service via /display/on-demand/start, after the on-demand request was already written to cache. Fixed to `import time`. Audited the rest of the package for the same `_pkg.<module>` import mistake; every other `_pkg.` reference is a legitimate attribute read-through (`_pkg.time.time()`, `_pkg._get_starlark_plugin()`, ...), not a broken import statement. - fonts.py: validate_file_upload's max_size_mb parameter is silently unused by that helper (it only checks filename/extension) -- the font upload route saved arbitrarily large files as a result. Added the same seek-and-check pattern already used for the sibling .star upload. - wifi.py: two ad hoc, inconsistent bool coercions. POST /wifi/ap/auto-enable used bare bool(), so a JSON string "false" enabled it. POST /wifi/radio's enabled/force parsing recognized real bool and some strings but not int 1/0 (1 is True is False in Python). Factored one small _parse_bool_ish helper local to this file and used it at all three sites. Not changed: the "unknown/misspelled restore option keys default to True" half of the backup.py finding -- the file's own comment documents that a missing key deliberately means "restore everything," matching the already-existing JSON-parse-failure guard a few lines above it; only the bool-coercion defect was a real bug. Added or extended regression tests for every fix, following each area's existing test conventions. Full suite: 4328 passed, 62 skipped, 2 failed on both this branch and origin/main (missing tzdata package breaks two timezone-alias tests in test_onboarding_checklist.py, unrelated to this change) -- no new failures. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01S3bPMESe2TfrGvbs1ef9c5
LED Matrix Web Interface V3
Modern, production web interface for controlling the LED Matrix display.
Overview
This directory contains the active V3 web interface with the following features:
- Real-time display preview via Server-Sent Events (SSE)
- Plugin management and configuration
- System monitoring and logs
- Modern, responsive UI
- RESTful API
Directory Structure
web_interface/
├── app.py # Main Flask application
├── start.py # Startup script
├── run.sh # Shell runner script
├── requirements.txt # Python dependencies
├── blueprints/ # Flask blueprints
│ ├── api_v3.py # API endpoints
│ └── pages_v3.py # Page routes
├── templates/ # HTML templates
│ └── v3/
│ ├── base.html
│ ├── index.html
│ └── partials/
└── static/ # CSS/JS assets
└── v3/
├── app.css
├── app.js
├── manifest.json # PWA manifest
├── plugins_manager.js
├── icons/ # PWA / touch icons
├── js/ # Alpine, htmx, app shell, widgets, utils
└── vendor/ # codemirror, fontawesome
Running the Web Interface
Standalone (Development)
From the project root:
python3 web_interface/start.py
Or using the shell script:
./web_interface/run.sh
As a Service (Production)
The web interface can run as a systemd service that starts automatically based on the web_display_autostart configuration setting:
sudo systemctl start ledmatrix-web
sudo systemctl enable ledmatrix-web # Start on boot
Accessing the Interface
Once running, access the web interface at:
- Local: http://localhost:5000
- Network: http://:5000
Configuration
The web interface reads configuration from:
config/config.json- Main configurationconfig/config_secrets.json- API keys and secrets
API Documentation
The V3 API is mounted at /api/v3/ (app.py:144). For the complete
list and request/response formats, see
docs/REST_API_REFERENCE.md. Quick
reference for the most common endpoints:
Configuration
GET /api/v3/config/main- Get main configurationPOST /api/v3/config/main- Save main configurationGET /api/v3/config/secrets- Get secrets configurationPOST /api/v3/config/raw/main- Save raw main config (Config Editor)POST /api/v3/config/raw/secrets- Save raw secrets
Display & System Control
GET /api/v3/system/status- System statusPOST /api/v3/system/action- Control display (action body:start_display,stop_display,restart_display_service,restart_web_service,git_pull,reboot_system,shutdown_system,enable_autostart,disable_autostart)GET /api/v3/display/current- Current display frameGET /api/v3/display/on-demand/status- On-demand statusPOST /api/v3/display/on-demand/start- Trigger on-demand displayPOST /api/v3/display/on-demand/stop- Clear on-demand
Plugins
GET /api/v3/plugins/installed- List installed pluginsGET /api/v3/plugins/config?plugin_id=<id>- Get plugin configPOST /api/v3/plugins/config- Update plugin configurationGET /api/v3/plugins/schema?plugin_id=<id>- Get plugin schemaPOST /api/v3/plugins/toggle- Enable/disable pluginPOST /api/v3/plugins/install- Install from registryPOST /api/v3/plugins/install-from-url- Install from GitHub URLPOST /api/v3/plugins/uninstall- Uninstall pluginPOST /api/v3/plugins/update- Update plugin
Plugin Store
GET /api/v3/plugins/store/list- List available registry pluginsGET /api/v3/plugins/store/github-status- GitHub authentication statusPOST /api/v3/plugins/store/refresh- Refresh registry from GitHub
Real-time Streams (SSE)
SSE stream endpoints are defined directly on the Flask app
(app.py:607-619 — includes the CSRF exemption and rate-limit hookup
alongside the three route definitions), not on the api_v3 blueprint:
GET /api/v3/stream/stats- System statistics streamGET /api/v3/stream/display- Display preview streamGET /api/v3/stream/logs- Service logs stream
Development
When making changes to the web interface:
- Edit files in this directory
- Test changes by running
python3 web_interface/start.py - Restart the service if running:
sudo systemctl restart ledmatrix-web
Notes
- Templates and static files use the
v3/prefix to allow for future versions - The interface uses Flask blueprints for modular organization
- SSE streams provide real-time updates without polling