Security
- Default scripts_management, callbacks_management, links_management, and
media_folders_management to False so a leaked token cannot escalate to RCE
through admin CRUD endpoints.
- TokenSpec + scope hierarchy (read | control | admin); legacy bare-string
api_tokens entries promote to admin for back-compat. Management endpoints
now require admin scope.
- WebSocket subprotocol auth (Sec-WebSocket-Protocol: media-server.token.<T>)
preferred over ?token= query so the token no longer lands in URL/history/
Referer; query fallback retained for HA integration back-compat.
- Origin allow-list check on the WS endpoint (CSWSH defence).
- In-process token-bucket rate limiter: 5/min for failed auths,
10/min for /api/scripts/execute and /api/callbacks/execute.
- shell=False subprocess path (shlex.split) + per-parameter regex `pattern`
in ScriptParameterConfig to harden shell=true scripts against parameter
injection (Windows cmd.exe env-var expansion).
- CSP gains form-action, worker-src, manifest-src directives.
- Refuse cors_origins=["*"] at startup; strip token=... from uvicorn access
logs; validate Gitea release tag against strict SemVer regex.
- noopener noreferrer + no-referrer referrerpolicy on every outbound link.
- icacls hardening of config.yaml on Windows (current user + SYSTEM +
Administrators only); 0600 still enforced on POSIX.
- WS volume handler clamps input and never drops the socket on bad messages.
Performance
- Album-art read in windows_media gated by track key — was decoding the
WinRT thumbnail twice per second regardless of track changes.
- /api/media/artwork returns content-derived ETag + Cache-Control so the
browser sends If-None-Match and gets 304s on track repeats.
- Foreground-service ctypes argtypes hoisted to one-time module init
(was re-declaring ~14 prototypes per probe).
- display_service _static_cache keyed by (edid_hash, ...) tuple with
eviction of disappeared monitors — fixes stale capabilities on hot-plug
swaps where the new topology has the same monitor count.
- Visualizer rAF loop paused on document.hidden, resumed on visible.
Reliability / bug fixes
- Lifespan rewritten as try/yield/finally so a partial-startup failure
cannot orphan background tasks or executors.
- _run_callback in routes/media.py keeps a strong task ref (GC-safe) and
uses the dedicated callback executor instead of the default pool.
- macos_media.set_volume() no longer always returns True.
- TrayManager._restart_requested initialised in __init__; set before
signalling exit so the main thread observes it correctly.
- Missing static_dir now logs a WARNING instead of silent UI disable.
UX / accessibility / PWA
- manifest.json theme_color and background_color match the Studio Reference
base (#0E0D0B); added id and scope for PWA installability.
- ARIA on mini-player icon buttons; inner SVGs marked aria-hidden.
- OS mediaSession API wired so headset / lockscreen / Bluetooth buttons
drive play/pause/next/prev/seek and show track metadata + artwork.
Observability
- X-Request-ID middleware (accept upstream id if it matches a safe regex,
otherwise UUID4); request_id_var added to ContextVars and included in
every log line alongside the token label.
- Audit log (append-only JSONL) for every script + callback execution,
including the on_play/on_pause/etc. event callbacks. Background-thread
writer; queue capped; flushed in lifespan teardown.
Deployment
- proxy_headers + forwarded_allow_ips plumbed through Settings →
uvicorn.Config for reverse-proxy installs.
- HTTPS support via ssl_certfile + ssl_keyfile (+ optional password);
startup refuses to launch with only one of the pair set.
- Thumbnail cache moved from project-root .cache to
%LOCALAPPDATA%/media-server/cache (Windows) and
$XDG_CACHE_HOME/media-server/thumbnails (POSIX).
Tests
- 35 new tests across auth scopes, rate limiter, browser path traversal
(../ NUL UNC absolute), script-param validation incl. regex, Gitea tag
whitelist, config atomic write + POSIX perms. 47 passed / 4 skipped.
Adds cross-platform foreground-window tracking and exposes it over REST
(/api/foreground) and the existing WebSocket feed.
- foreground_service.py: Windows probe via ctypes (HANDLE-correct argtypes
to avoid 64-bit handle truncation); macOS via AppKit; Linux via Xlib
(Wayland returns unavailable). TTL cache + per-platform fallback.
- browser_url_service.py: when foreground is a recognised browser, extract
the page title from the window title (browser-name suffix stripped) and
surface `is_browser` + `browser_page_title`. Optional UIA-based URL
extraction behind MEDIA_SERVER_BROWSER_UIA env flag (off by default —
Chromium browsers keep their accessibility tree dormant otherwise).
- websocket_manager: poll foreground every 1s inside the existing status
loop, broadcast `foreground` on connect and `foreground_update` on
change. Diff only on user-visible fields to avoid geometry spam.
- WebUI: new editorial card rendered under the monitor list on the
Display tab — process name, window title, fullscreen/minimized/monitor
chips, browser block when applicable, exe path, PID, started-ago,
geometry, platform. 16px inter-section gap matches Settings cadence.
- i18n: 25 new keys added to both en.json and ru.json.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Default `host: 127.0.0.1` in config.example.yaml; require explicit
api_tokens or `allow_lan_without_auth: true` before binding LAN.
- Mirror pre-uvicorn fatal errors to startup-errors.log in the config
dir so silent boot failures via wscript/pythonw are diagnosable.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Security
- Default bind 127.0.0.1; first-run bootstrap generates random api_token
and refuses to bind non-loopback without auth unless explicitly opted in
- Path-traversal hardened: BrowserService.validate_path rejects absolute
paths, drive letters, UNC, NUL bytes. /api/browser/{play,metadata,
thumbnail} now require folder_id and a folder-relative path
- Pydantic validators on links: http(s) URLs only, mdi:<slug> icons only
- Scripts/callbacks/links create/update/delete gated by *_management flags
- Strict CSP, X-Frame-Options DENY, Referrer-Policy no-referrer,
X-Content-Type-Options nosniff
- CORS locked to localhost:<port> + 127.0.0.1:<port> by default; configurable
- config.yaml writes atomic (tmp + os.replace) and 0o600 on POSIX
- Subprocesses spawned in their own process group / new session so timeout
kills the whole tree (Windows CREATE_NEW_PROCESS_GROUP, POSIX
start_new_session=True)
- Frontend XSS: monitor name + details escapeHtml'd; power button moved to
delegated data-action handler; remote MDI SVGs parsed and sanitized
(strip script/foreignObject/on*/javascript: hrefs) before innerHTML
- All dynamic URL segments now wrapped in encodeURIComponent
Bugs
- WebSocket reconnect: close previous socket before opening new, clear
ping interval per-socket, clear reconnectTimeout up-front, retry on
online/visibilitychange, try/catch JSON.parse
- Artwork fetch race: AbortController + generation guard
- _broadcast_after_open: initialize status, swallow per-poll errors,
background tasks tracked in a strong-ref set with done-callback cleanup
- Audio analyzer: sticky _unavailable flag prevents infinite start/stop
spin when no loopback device exists; cleared by set_device()
- Volume short-circuit cache invalidated when server reports remote volume
- Browser thumbnail race: per-folder generation counter + isConnected
checks; aborts in-flight fetches on navigation
- Track-skip uses cached title instead of full WinRT status round-trip
Performance
- Linux MPRIS/pactl and /api/display DDC-CI handlers wrapped in
asyncio.to_thread so blocking IO never stalls the event loop
- browse_directory moved off the event loop (SMB shares could freeze it)
- Windows status poll caches one asyncio loop per worker thread via
threading.local instead of new_event_loop/close on every 0.5s tick
- broadcast() serializes JSON once and uses send_text to all clients
- Hourly thumbnail cache cleanup scheduled in lifespan (was never invoked
— cache grew unbounded)
- Progress drag listeners attached only while dragging
Quality
- All asyncio.get_event_loop() in coroutines → get_running_loop()
- ThreadPoolExecutors shut down cleanly during lifespan teardown
- config_manager dedup: 12 near-identical methods collapsed onto generic
_upsert/_delete helpers (~290 lines removed)
- Service worker no longer pass-throughs every fetch
- M3U playlist written via NamedTemporaryFile (no fixed-path symlink
clobber race)
- __version__ now prefers live pyproject.toml in dev checkouts so
pip install -e . users see the source-of-truth version, not the stale
package-metadata version baked in at install time
UI/UX (Studio Reference)
- Green leftover focus rings (rgba(29,185,84,...)) all replaced with
copper accent (rgba(var(--copper-rgb),...))
- Dialogs: square corners, copper top hairline, unified with editorial
chrome
- .browser-item: transparent with copper hover border (was filled card)
- Audio device select uses var(--sans) instead of generic system font
- Mobile container padding tuned for ≤480px screens
- Breadcrumb home is a real <button> with aria-label; aria-current on root
- i18n: filled display.msg.power_*, execution.*, scripts.params.execute,
callbacks.empty in both en + ru
- Abstract ReleaseProvider protocol for platform-agnostic version checking
- GiteaReleaseProvider implementation using stdlib urllib
- UpdateChecker service with periodic background checks and WS broadcast
- Persistent dismissible banner in Web UI when a new version is detected
- Health endpoint now returns cached update info
- Configurable via update_check_enabled and update_check_interval settings
- i18n support (EN/RU)
The previous os.execv approach and console_script detection both
failed on Windows. Now restart always spawns `python -m media_server.main`
via subprocess.Popen with start_new_session, which works regardless
of how the server was originally started.
- Rewrite tray to run on main thread (pystray owns message loop, uvicorn
in background thread) — fixes unresponsive confirmation dialogs
- Use native Windows MessageBoxW instead of tkinter (embedded Python
has no tkinter)
- Pin numpy <2.0 to fix soundcard's numpy.fromstring (removed in 2.0)
- Strip transitive numpy 2.x wheels in build script
- Installer copies config.example.yaml as config.yaml on fresh install
- Suppress noisy screen_brightness_control warnings
Adds pystray-based tray icon (green play button) that runs alongside
uvicorn. Double-click opens the web UI in the browser, Exit triggers
graceful shutdown. Disabled with --no-tray flag for headless/service mode.
When no api_tokens are configured (the new default), all endpoints
are accessible without authentication. The frontend detects this
via /api/health's auth_required field and skips the login form.
- Backend: auth.py skips verification when api_tokens is empty
- Frontend: shared getAuthHeaders()/hasCredentials() helpers replace
scattered token logic across all JS modules
- Health endpoint exposes auth_required for frontend discovery
- config.example.yaml ships with tokens commented out
- CLI --show-token and startup log reflect disabled state
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Service worker, manifest, and SVG icon for PWA installability
- Root /sw.js route for full-scope service worker registration
- Meta tags: theme-color, apple-mobile-web-app, viewport-fit=cover
- Safe area insets for notched phones (container, mini-player, footer, banner)
- Dynamic theme-color sync on light/dark toggle
- Overscroll prevention and touch-action optimization
- Hide mini-player prev/next buttons on small screens
- Updated README with PWA and new feature documentation
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Audio capture starts only when first client subscribes,
stops when last client unsubscribes (saves CPU/battery)
- Add lifecycle lock to AudioAnalyzer for thread-safe start/stop
- Status badge uses local visualizer state instead of server flag
- Fix script name vertical text break on narrow screens
- Fix script grid minimum column width on small viewports
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Fix CORS: set allow_credentials=False (token auth, not cookies)
- Add threading.Lock for position cache thread safety
- Add shutdown_executor() for clean ThreadPoolExecutor cleanup
- Dedicated ThreadPoolExecutors for script/callback execution
- Fix Mutagen file handle leaks with try/finally close
- Reduce idle WebSocket polling (0.5s → 2.0s when no clients)
- Add :focus-visible styles for playback control buttons
- Add aria-label to icon-only header buttons
- Dynamic album art alt text for screen readers
- Persist MDI icon cache to localStorage
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- New audio_analyzer service: loopback capture via soundcard + numpy FFT
- Real-time spectrogram bars below album art with accent color gradient
- Album art and vinyl pulse to bass energy beats
- WebSocket subscriber pattern for opt-in audio data streaming
- Audio device selection in Settings tab with auto-detect fallback
- Optimized FFT pipeline: vectorized cumsum bin grouping, pre-serialized JSON broadcast
- Visualizer config: enabled/fps/bins/device in config.yaml
- Optional deps: soundcard + numpy (graceful degradation if missing)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Add LinkConfig model and links field to settings
- Add CRUD API endpoints for links (list/create/update/delete)
- Add Links management tab in WebUI with add/edit/delete dialogs
- Add live icon preview in Link and Script dialog forms
- Show MDI icons inline in Quick Actions cards, Scripts table, Links table
- Add broadcast_links_changed WebSocket event for live updates
- Add EN/RU translations for all links management strings
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- New display service with DDC/CI brightness and power control via screen_brightness_control and monitorcontrol
- New /api/display/* endpoints (monitors, brightness, power)
- Display tab in WebUI with per-monitor brightness sliders and power toggle
- EDID resolution parsing to distinguish same-name monitors
- Throttled brightness slider (50ms) matching volume control pattern
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Refactored index.html: Split into separate HTML (309 lines), CSS (908 lines), and JS (1,286 lines) files
- Implemented media browser with folder configuration, recursive navigation, and thumbnail display
- Added metadata extraction using mutagen library (title, artist, album, duration, bitrate, codec)
- Implemented thumbnail generation and caching with SHA256 hash-based keys and LRU eviction
- Added platform-specific file playback (os.startfile on Windows, xdg-open on Linux, open on macOS)
- Implemented path validation security to prevent directory traversal attacks
- Added smooth thumbnail loading with fade-in animation and loading spinner
- Added i18n support for browser (English and Russian)
- Updated dependencies: mutagen>=1.47.0, pillow>=10.0.0
- Added comprehensive media browser documentation to README
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Replace single api_token with api_tokens dict (label: token pairs)
- Add context-aware logging to track which client made each request
- Implement token label lookup with secure comparison
- Add logging middleware to inject token labels into request context
- Update logging format to display [label] in all log messages
- Fix WebSocket authentication to use new multi-token system
- Update CLI --show-token to display all tokens with labels
- Update config generation to use api_tokens format
- Update README with multi-token documentation
- Update config.example.yaml with multiple token examples
Benefits:
- Easy identification of clients in logs (Home Assistant, mobile, web UI, etc.)
- Per-client token management and revocation
- Better security and auditability
Example log output:
2026-02-06 03:36:20,806 - [home_assistant] - WebSocket client connected
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Add static file serving to FastAPI application
- Create responsive web interface with real-time updates
- Features:
- Real-time status updates via WebSocket
- Album artwork display with automatic updates
- Playback controls (play, pause, next, previous)
- Volume control with mute toggle
- Seekable progress bar
- Token authentication with localStorage persistence
- Dark theme and responsive design
- Auto-reconnect WebSocket support
- Update README with Web UI documentation
- Zero dependencies (vanilla HTML/CSS/JavaScript)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Add CallbackConfig model for callback scripts
- Add callbacks section to config for optional command execution
- Add turn_on/turn_off/toggle endpoints (callback-only)
- Add callbacks for all media actions (play, pause, stop, next, previous, volume, mute, seek)
- Update README with callbacks documentation
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
FastAPI REST API server for controlling system-wide media playback
on Windows, Linux, macOS, and Android.
Features:
- Play/Pause/Stop/Next/Previous track controls
- Volume control and mute
- Seek within tracks
- Current track info (title, artist, album, artwork)
- WebSocket real-time status updates
- Script execution API
- Token-based authentication
- Cross-platform support
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
alexei.dolgolyov