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* fix: catch ConfigError in display preview generator PR #282 narrowed bare except blocks but missed ConfigError from config_manager.load_config(), which wraps FileNotFoundError, JSONDecodeError, and OSError. Without this, a corrupt or missing config crashes the display preview SSE endpoint instead of falling back to 128x64 defaults. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(security): comprehensive error handling cleanup - Remove all traceback.format_exc() from client responses (33 remaining instances) - Sanitize str(e) from client-facing messages, replacing with generic error messages - Replace ~65 bare print() calls with structured logger.exception/error/warning/info/debug - Remove ~35 redundant inline `import traceback` and `import logging` statements - Convert logging.error/warning calls to use module-level named logger - Fix WiFi endpoints that created redundant inline logger instances - Add logger.exception() at all WebInterfaceError.from_exception() call sites - Fix from_exception() in errors.py to use safe messages instead of raw str(exception) - Apply consistent [Tag] prefixes to all logger calls for production triage Only safe, user-input-derived str(e) kept: json.JSONDecodeError handlers (400 responses). Subprocess template print(stdout) calls preserved (not error logging). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(security): correct error inference, remove debug log leak, consolidate config handlers - _infer_error_code: map Config* exceptions to CONFIG_LOAD_FAILED (ConfigError is only raised by load_config(), so CONFIG_SAVE_FAILED produced wrong safe message and wrong suggested_fixes) - Remove leftover DEBUG logs in save_main_config that dumped full request body and all HTTP headers (Authorization, Cookie, etc.) - Replace dead FileNotFoundError/JSONDecodeError/IOError handlers in get_dim_schedule_config with single ConfigError catch (load_config already wraps these into ConfigError) - Remove redundant local `from src.exceptions import ConfigError` imports now covered by top-level import - Strip str(e) from client-facing error messages in dim schedule handler Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * fix(security): fix plugin update logging and config validation leak - update_plugin: change logger.exception to logger.error in non-except branch (logger.exception outside an except block logs useless "NoneType: None" traceback) - update_plugin: remove duplicate logger.exception call in except block (was logging the same failure twice) - save_plugin_config validation: stop logging full plugin_config dict (can contain API keys, passwords, tokens) and raw form_data values; log only keys and validation errors instead Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> --------- Co-authored-by: Chuck <chuck@example.com> Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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
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/secrets.json- API keys and secrets
API Documentation
The V3 API is available at /api/v3/ with the following 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/secrets- Save secrets configuration
Display Control
POST /api/v3/display/start- Start display servicePOST /api/v3/display/stop- Stop display servicePOST /api/v3/display/restart- Restart display serviceGET /api/v3/display/status- Get display service status
Plugins
GET /api/v3/plugins- List installed pluginsGET /api/v3/plugins/<id>- Get plugin detailsPOST /api/v3/plugins/<id>/config- Update plugin configurationGET /api/v3/plugins/<id>/enable- Enable pluginGET /api/v3/plugins/<id>/disable- Disable plugin
Plugin Store
GET /api/v3/store/plugins- List available pluginsPOST /api/v3/store/install/<id>- Install pluginPOST /api/v3/store/uninstall/<id>- Uninstall pluginPOST /api/v3/store/update/<id>- Update plugin
Real-time Streams (SSE)
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