Files
LEDMatrix/web_interface
63a233f3ed fix: dependency installation gaps in Plugin Store and first-time install (#385)
* fix: install plugin dependencies through root-visible installer in Plugin Store

install_plugin/update_plugin (store_manager.py) installed requirements.txt
with a bare `pip3` off PATH, bypassing the root-visible installer added in
#380 for the "Reinstall Plugin Deps" button. Two bugs stacked: (1) `pip3`
can resolve to a different Python install than the one that actually runs
ledmatrix.service, and (2) even when it resolves correctly, ledmatrix-web
runs as a non-root user so the package lands in that user's local
site-packages, invisible to root-run ledmatrix.service. Either way the
install reports success and writes the .dependencies_installed hash marker,
so plugin_loader's own (correct) install-on-load path skips reinstalling —
leaving the dependency permanently missing until a user finds and clicks
the separate "Reinstall Plugin Deps" tool. This is why users kept hitting
"No module named 'astral'" for the weather plugin even after installing it
from the Store.

Extracts the sudo-wrapper-then-fallback install logic from api_v3.py's
_pip_install_requirements into src/common/permission_utils.py as
install_requirements_file, and routes store_manager.py's dependency
installation through it so the automatic Store install/update path now
matches the manual "Reinstall Plugin Deps" path.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01X1NnDduw53kTe67i5zWwYx

* chore: suppress Codacy false-positive on subprocess.run in install_requirements_file

Codacy's generic subprocess-security rule (Bandit B603 equivalent) flagged
the pip/sudo subprocess.run calls in install_requirements_file for lacking a
"static string argument" — the standard pattern-based flag for any
subprocess.run() call with a variable in its argv list. Both calls use
list-form argv (no shell=True, so no shell-injection surface), and the only
dynamic value is req_file, a Path built internally by callers rather than
raw external input; safe_pip_install.sh independently re-validates it before
installing anything as root. Suppresses with inline `# nosec B603` comments
matching this codebase's existing convention (see permission_utils.py's own
PROTECTED_SYSTEM_DIRECTORIES, display_manager.py, sync_manager.py, etc.).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01X1NnDduw53kTe67i5zWwYx

* fix: first-time install script fails on apt-managed requests package

web_interface/requirements.txt and requirements.txt both pin
requests>=2.33.0,<3.0.0, but Raspberry Pi OS ships an apt-managed
python3-requests with no pip RECORD file. Upgrading it via plain
`pip install` aborts with "uninstall-no-record-file" because pip refuses to
uninstall a package it has no record of, in place — which is exactly the
"Some web interface dependencies failed to install" warning first-time
install hits.

scripts/install_dependencies_apt.py and scripts/fix_perms/safe_pip_install.sh
already work around this with --ignore-installed (lets pip lay the new
version down in /usr/local, shadowing the apt copy, instead of trying to
remove it first). first_time_install.sh's own direct pip invocations —
the per-package requirements.txt loop, the web_interface/requirements.txt
install, and the requirements_web_v2.txt fallback — didn't have it. Adds
--ignore-installed to all three so first-time install no longer fails on
this well-known apt/pip conflict.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01X1NnDduw53kTe67i5zWwYx

* chore: add nosemgrep to subprocess.run calls Codacy still flagged

The prior # nosec B603 comments suppressed Bandit's check but Codacy's
semgrep-based rule ("subprocess function 'run' without a static string")
kept flagging the same two lines as a critical security issue even after
that fix landed. install_dependencies_apt.py's _run() already needed both
tags together (# nosec B603 B607 ... # nosemgrep) for the identical
subprocess.run pattern, so apply the same double suppression here.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01X1NnDduw53kTe67i5zWwYx

* fix: add --ignore-installed to install_requirements_file fallback path

CodeRabbit review caught this (confirming a gap already flagged in
conversation): the non-sudo fallback pip install in install_requirements_file
was missing --ignore-installed, unlike the sudo-wrapper branch and
safe_pip_install.sh. Without it, the same apt/pip RECORD-file conflict this
PR fixes elsewhere (first_time_install.sh, install_dependencies_apt.py) could
still hit installs that fall back to this path (e.g. a plugin's
requirements.txt on a host where safe_pip_install.sh isn't set up yet).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01X1NnDduw53kTe67i5zWwYx

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-07-08 09:59:12 -04:00
..
2025-12-27 14:15:49 -05:00
2025-12-27 14:15:49 -05:00
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

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