Files
LEDMatrix/web_interface
Claude 6c23994b2f fix(composer): coerce remaining raw int() payload values, harden JS file/download handling
CodeRabbit flagged several payload-derived int() conversions in composer.py
that could raise ValueError instead of clamping like every other coerced
value in the module (_as_rgb_filter and its callers -- fillR/G/B, outR/G/B,
bgR/G/B, trackR/G/B -- plus min_width, lineSpacing, barWidth/Height,
start/endAngle, borderRadius, pip*, sparkline bar*, marquee gap/scrollSpeed).
Route them all through _safe_int for consistency with the rest of the module
and to avoid the generic 422 a raw ValueError produces.

Also:
- FileReader.onerror was unset in importDesign(), so a failed file read
  produced no status message.
- URL.revokeObjectURL() ran synchronously right after link.click() in both
  exportDesign() and generateZip(); deferred via setTimeout(..., 0) so the
  download reliably starts before the object URL is revoked.
- _module_level_code() (test helper) filtered ast.ImportFrom but not
  ast.Import, so a bare `import os` payload wouldn't be caught by the
  helper itself, even though downstream assertions still caught it.

Added regression tests for the fillR/G/B injection + clamping path, which
had no coverage (existing tests only covered the r/g/b _rgb_expr path).

Skipped as not worth the churn (CodeRabbit nitpicks, both "Trivial/Low value"):
- test_composer_empty_block.py's branch regex not matching digit-containing
  type names -- no such type exists today.
- test_composer_path_containment.py's `C.composer_bp.name and Flask(...)`
  truthiness guard -- cosmetic, blueprint name is never falsy.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XKc832xpVEx3C3W5BVqQ5Z
2026-09-12 17:35:16 +00:00
..
2025-12-27 14:15:49 -05:00

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:

Configuration

The web interface reads configuration from:

  • config/config.json - Main configuration
  • config/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 configuration
  • POST /api/v3/config/main - Save main configuration
  • GET /api/v3/config/secrets - Get secrets configuration
  • POST /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 status
  • POST /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 frame
  • GET /api/v3/display/on-demand/status - On-demand status
  • POST /api/v3/display/on-demand/start - Trigger on-demand display
  • POST /api/v3/display/on-demand/stop - Clear on-demand

Plugins

  • GET /api/v3/plugins/installed - List installed plugins
  • GET /api/v3/plugins/config?plugin_id=<id> - Get plugin config
  • POST /api/v3/plugins/config - Update plugin configuration
  • GET /api/v3/plugins/schema?plugin_id=<id> - Get plugin schema
  • POST /api/v3/plugins/toggle - Enable/disable plugin
  • POST /api/v3/plugins/install - Install from registry
  • POST /api/v3/plugins/install-from-url - Install from GitHub URL
  • POST /api/v3/plugins/uninstall - Uninstall plugin
  • POST /api/v3/plugins/update - Update plugin

Plugin Store

  • GET /api/v3/plugins/store/list - List available registry plugins
  • GET /api/v3/plugins/store/github-status - GitHub authentication status
  • POST /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 stream
  • GET /api/v3/stream/display - Display preview stream
  • GET /api/v3/stream/logs - Service logs stream

Development

When making changes to the web interface:

  1. Edit files in this directory
  2. Test changes by running python3 web_interface/start.py
  3. 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