Show a centered overlay when the Guacamole client disconnects or
errors, instead of leaving a frozen canvas. Offers Reconnect (reload)
and Close (navigate to home) buttons. Applies to all session types.
API key users now exchange their key for a single-use 30-second
ticket via POST /api/ws-ticket before connecting. The ticket is
passed as ?ticket= in the WebSocket URL instead of the raw API key.
Prevents API key exposure in reverse proxy logs, browser history,
and Referer headers. Legacy ?key= still works as fallback.
Phase 1-3 of H.264 passthrough for premium RDP video performance.
guacamole-server patch (patches/004-h264-passthrough.patch):
- Enable GfxH264 and GfxAVC444 in FreeRDP settings when GFX is on
- Intercept AVC420/AVC444 SurfaceCommand before GDI decode
- Extract raw H.264 NAL units and send as new "h264" instruction
- Keyframe detection via Annex B start code + NAL type parsing
- Original GDI decode path still runs as fallback
Browser-side (static/guac/):
- H264Decoder.js: WebCodecs VideoDecoder, hardware-accelerated decode
- Client.js: "h264" instruction handler, base64→ArrayBuffer→decode
- Feature detection: falls back gracefully if WebCodecs unavailable
rustguac:
- Advertise video/h264 in guacd handshake
Audio:
- RDP audio output now works through guacamole. Advertise audio/L16
and audio/L8 mimetypes in the guacd handshake, and explicitly set
disable-audio=false. Fixed mimetype mismatch that silently prevented
guacd from creating audio streams.
- Browser AudioContext auto-resumed on user interaction (click/keydown)
to comply with autoplay policy.
Video performance:
- Per-entry GFX pipeline toggle (enable_gfx) — enables RemoteFX codec
- Per-entry desktop composition toggle (enable_desktop_composition)
- Per-entry force lossless toggle (force_lossless) — PNG-only mode
- WebSocket proxy buffer increased from 8KB to 64KB
- Video Performance section in address book UI for RDP entries
Documentation:
- RDP Video Performance guide with Windows server tuning (AVC444,
60fps, GPU encoding) and Linux xrdp setup (Debian 13)
- contrib/setup-xrdp-gfx.sh — automated GFX/H.264 setup for xrdp
- contrib/setup-xrdp-audio.sh — automated PulseAudio module build
Credential variables — address book entries reference $domain_username /
$domain_password instead of storing static credentials. Users fill in their
own values via My Credentials (gear menu), stored per-user in Vault KV.
All variables set → silent launch; missing → prompted. Hyphens allowed in
variable names. Docs section added.
Bug fixes:
- Rate limiting disabled by default; opt-in via rate_limit = true (#62)
- Docker: copy FreeRDP guac-common-svc plugins to runtime image (#64)
- Docker/install: add chromium-sandbox package for non-root web sessions (#61)
- Logo: skip redundant JS src= when server-side branding already set (#65)
- Sessions page: hide Open/Share buttons for non-active sessions (#63)
- Drive: expose drive_configured in /api/auth/status, warn in UI when
[drive] not configured
- install.sh: verify FreeRDP plugin installation
UI polish:
- Nav bar: border separator + spacing between header and nav on all pages
- Address book: password show/hide toggle on all password fields
- Drive diagnostic logging (session.rs, websocket.rs, client.html)
Closes#61, #62, #63, #64, #65
- Send actual browser window dimensions at session creation (addressbook,
sessions) instead of defaulting to 1920x1080
- Send initial sendSize() on WebSocket connect so guacd can resize the
remote display via Display Update channel
- Debounce window resize handler (250ms) to avoid overwhelming RDP server
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Vault TLS: replace hardcoded danger_accept_invalid_certs(true) with
configurable tls_skip_verify option (default: false)
- Share tokens: use constant-time SHA-256 hash comparison to prevent
timing side-channel attacks
- OIDC pending states: add 10-minute TTL, evict stale entries on each
login to prevent unbounded HashMap growth
- Recording path traversal: add canonical path validation as defense-
in-depth alongside existing string checks
- Frontend XSS: escape all user-controlled data (filenames, paths) in
innerHTML via escapeHtml/escapeAttr in client.html and recordings.html
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Dave Kempe