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UNITRONIX 1508c739b2 fix(api): Go :21114 default API and Node :21121 compat proxy (#160 )

RustDesk clients could not log in after v3 when handlers moved to Go but
nothing listened on :21121 (API_ENABLED off) or Go bound the wrong port.
Go serves /api/login on 21114; the console proxies legacy :21121 URLs to
Go. Installers repair .env/systemd, Docker publishes both ports, and
firewall rules allow 21114 and 21121 on full installs.

Also includes betterdesk-support-agent (Fyne desktop helper) and
docs/important/ operator notes (API ports, update flow, agent roadmap).

2026-06-03 02:16:24 +02:00

1.5 KiB

Raw Blame History

rdclient WebCodecs black-screen fix

Path: web-nodejs/public/js/rdclient/

Root cause (black screen, 0 FPS on HTTPS / native RustDesk)

On HTTPS (port 5443) browser is secure context -> WebCodecs VideoDecoder path (NOT JMuxer).
VideoDecoder requires the FIRST chunk after configure() to be a keyframe. A leading delta/P-frame throws "A key frame is required after configure()" -> no output.
Deltas kept resetting _lastVideoFrameTime, so the 3s stall-recovery never fired -> refresh_video keyframe never requested -> permanent black screen. 0x0 remote size also breaks input coordinate mapping (commands appear dead).

Fix (commit `9c83917`)

video.js: _needKeyframe gate after configure() drops deltas until first key; dedicated _decodeInputCount for monotonic chunk timestamps; drop deltas when decodeQueueSize>30; _handleError rebuilds decoder with software fallback (_softwareRetry) + sets _needKeyframe; init() probes codec support without forcing prefer-hardware. onNeedKeyframe callback added.
client.js _startSession: wires video.onNeedKeyframe -> buildMisc('refreshVideo', true), sends initial keyframe request, stall-recovery also fires when peer frames arrive but decoder output (video.frameCount) stays 0 for >2s.

Proto facts

message.proto: bool refresh_video = 10; -> buildMisc('refreshVideo', true) is correct.
Mouse mask must be TYPE | (BUTTON << 3) (RustDesk: button=mask>>3, type=mask&7).
cacheVersion = appVersion + Date.now() (server.js) -> service restart busts browser cache.

1.5 KiB Raw Blame History

rdclient WebCodecs black-screen fix

Root cause (black screen, 0 FPS on HTTPS / native RustDesk)

Fix (commit 9c83917)

Proto facts

1.5 KiB

Raw Blame History

Fix (commit `9c83917`)