backend: Port to superqemu
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203e8c258c
30 changed files with 4465 additions and 5297 deletions
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@ -0,0 +1 @@
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nodeLinker: node-modules
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@ -3,12 +3,9 @@
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socket.computer, except not powered by socket.io anymore, and with many less bugs. This monorepo builds
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- The backend
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- A QEMU VM runner package (feel free to steal it)
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- Shared components
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- The webapp (TODO)
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## Building
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```bash
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@ -1,35 +1,29 @@
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{
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"name": "@socketcomputer/backend",
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"version": "1.0.0",
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"private": "true",
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"description": "socket 2.0 backend",
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"type": "module",
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"scripts": {
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"build": "parcel build src/index.ts --target node"
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},
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"author": "modeco80",
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"license": "MIT",
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"targets": {
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"node":{
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"context": "node",
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"outputFormat": "esmodule"
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}
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"node": {
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"context": "node",
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"outputFormat": "esmodule"
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}
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},
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"dependencies": {
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"@computernewb/superqemu": "^0.1.0",
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"@fastify/websocket": "^10.0.1",
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"@socketcomputer/qemu": "*",
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"@socketcomputer/shared": "*",
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"canvas": "^2.11.2",
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"fastify": "^4.26.2",
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"mnemonist": "^0.39.8",
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"canvas": "^2.11.2"
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"mnemonist": "^0.39.8"
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},
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"devDependencies": {
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"parcel": "^2.12.0",
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"@types/ws": "^8.5.10"
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"@types/ws": "^8.5.10",
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"parcel": "^2.12.0"
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}
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}
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@ -2,7 +2,7 @@
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// which are standardized across all crusttest slots.
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// (This file has been bastardized for socket2)
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import { QemuVmDefinition } from '@socketcomputer/qemu';
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import { QemuVmDefinition } from '@computernewb/superqemu';
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const kQemuPath = '/srv/collabvm/qemu/bin/qemu-system-x86_64';
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@ -63,6 +63,7 @@ export function Slot_PCDef(
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return {
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id: 'socketvm1',
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command: qCommand
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command: qCommand.join(' '),
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snapshot: true
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};
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}
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@ -1,4 +1,4 @@
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import { QemuVmDefinition, QemuVM, setSnapshot } from '@socketcomputer/qemu';
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import { QemuVmDefinition, QemuVM } from '@computernewb/superqemu';
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import { Slot_PCDef } from './SlotQemuDefs.js';
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import { FastifyInstance, fastify, FastifyRequest } from 'fastify';
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@ -6,6 +6,7 @@ import * as fastifyWebsocket from '@fastify/websocket';
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import { SocketVM } from './SocketVM.js';
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import { VMUser } from './VMUser.js';
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import pino from 'pino';
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// CONFIG types (not used yet)
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export type SocketComputerConfig_VM = {
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@ -26,6 +27,10 @@ export class SocketComputerServer {
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exposeHeadRoutes: false
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});
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private logger = pino({
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name: "Sc2Server"
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});
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Init() {
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this.fastify.register(fastifyWebsocket.default);
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this.fastify.register(async (app, _) => this.Routes(app), {});
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@ -33,7 +38,7 @@ export class SocketComputerServer {
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async Listen() {
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try {
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console.log('Backend starting...');
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this.logger.info('Backend starting...');
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// create and start teh VMxorz!!!!
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await this.InitVM();
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@ -43,6 +48,7 @@ export class SocketComputerServer {
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port: 4050
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});
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} catch (err) {
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this.logger.error(err, 'Error listening');
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return;
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}
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}
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@ -56,7 +62,6 @@ export class SocketComputerServer {
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this.vm = new SocketVM(new QemuVM(slotDef));
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// Boot it up
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setSnapshot(true);
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await this.vm.Start();
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}
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@ -75,6 +80,7 @@ export class SocketComputerServer {
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return;
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}
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self.vm?.AddUser(new VMUser(connection, address));
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});
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}
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@ -1,13 +1,14 @@
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import { EventEmitter } from 'node:events';
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import { TurnQueue, UserTimeTuple, kTurnTimeSeconds } from './TurnQueue.js';
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import { VMUser } from './VMUser.js';
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import { QemuDisplay, QemuVM, VMState } from '@socketcomputer/qemu';
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import { QemuDisplay, QemuVM, VMState } from '@computernewb/superqemu';
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import { ExtendableTimer } from './ExtendableTimer.js';
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import { kMaxUserNameLength } from '@socketcomputer/shared';
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import * as Shared from '@socketcomputer/shared';
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import { Canvas } from 'canvas';
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import pino from 'pino';
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// for the maximum socket.io experience
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const kCanvasJpegQuality = 0.25;
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@ -24,18 +25,22 @@ export class SocketVM extends EventEmitter {
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private users: Array<VMUser> = [];
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private queue: TurnQueue = new TurnQueue();
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private logger = pino({
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name: 'Sc2VM'
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});
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constructor(vm: QemuVM) {
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super();
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this.vm = vm;
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this.timer.on('expired', async () => {
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// bye bye!
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console.log(`[SocketVM] VM timer expired, resetting..`);
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this.logger.info(`[SocketVM] VM timer expired, resetting..`);
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await this.vm.Stop();
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});
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this.timer.on('expiry-near', async () => {
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console.log(`[SocketVM] VM timer expires in 1 minute.`);
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this.logger.info(`[SocketVM] VM timer expires in 1 minute.`);
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});
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this.queue.on('turnQueue', (arr: Array<UserTimeTuple>) => {
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@ -97,7 +102,7 @@ export class SocketVM extends EventEmitter {
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user.username = VMUser.GenerateName();
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user.vm = this;
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console.log(`[SocketVM] ${user.username} (IP ${user.address}) joined`);
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this.logger.info({user: user.username, ip: user.address}, 'User joined');
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await this.SendInitialScreen(user);
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@ -129,7 +134,7 @@ export class SocketVM extends EventEmitter {
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}
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async RemUser(user: VMUser) {
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console.log(`[SocketVM] ${user.username} (IP ${user.address}) left`);
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this.logger.info({user: user.username, ip: user.address}, 'User left');
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this.users.splice(this.users.indexOf(user), 1);
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this.queue.TryRemove(user);
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@ -148,7 +153,7 @@ export class SocketVM extends EventEmitter {
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this.OnMessage(user, await Shared.MessageDecoder.ReadMessage(messageBuffer, false));
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} catch (err) {
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// Log the error and close the connection
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console.log(`Error decoding message, closing connection: (user ${user.username}, ip ${user.address})`, err);
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this.logger.error({ err: err, user: user.username, ip: user.address }, `Error decoding message, closing connection`);
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user.connection.close();
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return;
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}
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@ -203,8 +208,7 @@ export class SocketVM extends EventEmitter {
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let buffers = this.MakeFullScreenData();
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for (let buffer of buffers)
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await self.BroadcastBuffer(buffer);
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for (let buffer of buffers) await self.BroadcastBuffer(buffer);
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});
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this.display?.on('rect', async (x: number, y: number, rect: ImageData) => {
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16
package.json
16
package.json
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@ -1,28 +1,28 @@
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{
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"name": "socketcomputer-repo",
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"private": "true",
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"workspaces": [
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"shared",
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"backend",
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"qemu",
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"webapp"
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],
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"scripts": {
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"build": "yarn build:service && yarn build:frontend",
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"build:service": "npm -w shared run build && npm -w qemu run build && npm -w backend run build",
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"build": "yarn build:service && yarn build:frontend",
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"build:service": "npm -w shared run build && npm -w backend run build",
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"build:frontend": "npm -w shared run build && npm -w webapp run build"
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},
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"dependencies": {
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"canvas": "^2.11.2"
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"canvas": "^2.11.2",
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"pino": "^9.3.1"
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},
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"devDependencies": {
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"parcel": "^2.12.0",
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"@parcel/packager-ts": "2.12.0",
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"@parcel/transformer-sass": "^2.12.0",
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"@parcel/transformer-sass": "^2.12.0",
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"@parcel/transformer-typescript-types": "2.12.0",
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"@types/node": "^20.12.2",
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"parcel": "^2.12.0",
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"prettier": "^3.2.5",
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"stream-http": "^3.1.0",
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"typescript": "^5.4.3"
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}
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},
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"packageManager": "yarn@4.3.1"
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}
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@ -1,32 +0,0 @@
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{
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"name": "@socketcomputer/qemu",
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"version": "1.0.0",
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"private": "true",
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"description": "QEMU runtime for socketcomputer backend",
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"exports": "./dist/index.js",
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"types": "./dist/index.d.ts",
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"type": "module",
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"scripts": {
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"build": "parcel build src/index.ts --target node --target types"
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},
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"author": "",
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"license": "MIT",
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"targets": {
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"types": {},
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"node": {
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"context": "node",
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"isLibrary": true,
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"outputFormat": "esmodule"
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}
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},
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"dependencies": {
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"canvas": "^2.11.2",
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"execa": "^8.0.1",
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"split": "^1.0.1"
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},
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"devDependencies": {
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"parcel": "^2.12.0",
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"@types/node": "^20.12.2",
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"@types/split": "^1.0.5"
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}
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}
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import { VncClient } from './rfb/client.js';
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import { EventEmitter } from 'node:events';
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import { Canvas, CanvasRenderingContext2D, createImageData } from 'canvas';
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import { BatchRects, Size, Rect } from './QemuUtil.js';
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const kQemuFps = 30;
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export type VncRect = {
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x: number;
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y: number;
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width: number;
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height: number;
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};
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// events:
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//
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// 'resize' -> (w, h) -> done when resize occurs
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// 'rect' -> (x, y, ImageData) -> framebuffer
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// 'frame' -> () -> done at end of frame
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export class QemuDisplay extends EventEmitter {
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private displayVnc = new VncClient({
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debug: false,
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fps: kQemuFps,
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encodings: [
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VncClient.consts.encodings.raw,
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//VncClient.consts.encodings.pseudoQemuAudio,
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VncClient.consts.encodings.pseudoDesktopSize
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// For now?
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//VncClient.consts.encodings.pseudoCursor
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]
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});
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private displayCanvas: Canvas = new Canvas(640, 480);
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private displayCtx: CanvasRenderingContext2D = this.displayCanvas.getContext('2d');
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private vncShouldReconnect: boolean = false;
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private vncSocketPath: string;
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constructor(socketPath: string) {
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super();
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this.vncSocketPath = socketPath;
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this.displayVnc.on('connectTimeout', () => {
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this.Reconnect();
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});
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this.displayVnc.on('authError', () => {
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this.Reconnect();
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});
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this.displayVnc.on('disconnect', () => {
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this.Reconnect();
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});
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this.displayVnc.on('closed', () => {
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this.Reconnect();
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});
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this.displayVnc.on('firstFrameUpdate', () => {
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// apparently this library is this good.
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// at least it's better than the two others which exist.
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this.displayVnc.changeFps(kQemuFps);
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this.emit('connected');
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this.displayCanvas.width = this.displayVnc.clientWidth;
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this.displayCanvas.height = this.displayVnc.clientHeight;
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this.emit('resize', this.displayVnc.clientWidth, this.displayVnc.clientHeight);
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this.emit('rect', 0, 0, this.displayCtx.getImageData(0, 0, this.displayVnc.clientWidth, this.displayVnc.clientHeight));
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this.emit('frame');
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});
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this.displayVnc.on('desktopSizeChanged', ({ width, height }) => {
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this.emit('resize', width, height);
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this.displayCanvas.width = width;
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this.displayCanvas.height = height;
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});
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let rects: Rect[] = [];
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this.displayVnc.on('rectUpdateProcessed', (rect) => {
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rects.push(rect);
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});
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this.displayVnc.on('frameUpdated', (fb) => {
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this.displayCtx.putImageData(createImageData(new Uint8ClampedArray(fb.buffer), this.displayVnc.clientWidth, this.displayVnc.clientHeight), 0, 0);
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// TODO: optimize the rects a bit. using guacamole's cheap method
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// of just flushing the whole screen if the area of all the updated rects gets too big
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// might just work.
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//for (const rect of rects) {
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// this.emit('rect', rect.x, rect.y, this.displayCtx.getImageData(rect.x, rect.y, rect.width, rect.height));
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//}
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// cvmts batcher
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let batched = BatchRects(this.Size(), rects);
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this.emit('rect', batched.x, batched.y, this.displayCtx.getImageData(batched.x, batched.y, batched.width, batched.height));
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rects = [];
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this.emit('frame');
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});
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}
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private Reconnect() {
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if (this.displayVnc.connected) return;
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if (!this.vncShouldReconnect) return;
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// TODO: this should also give up after a max tries count
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// if we fail after max tries, emit a event
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this.displayVnc.connect({
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path: this.vncSocketPath
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});
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}
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Connect() {
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this.vncShouldReconnect = true;
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this.Reconnect();
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}
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Disconnect() {
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this.vncShouldReconnect = false;
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this.displayVnc.disconnect();
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}
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GetCanvas() {
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return this.displayCanvas;
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}
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Size(): Size {
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return {
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width: this.displayVnc.clientWidth,
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height: this.displayVnc.clientHeight
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};
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}
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MouseEvent(x: number, y: number, buttons: number) {
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this.displayVnc.sendPointerEvent(x, y, buttons);
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}
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KeyboardEvent(keysym: number, pressed: boolean) {
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this.displayVnc.sendKeyEvent(keysym, pressed);
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}
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}
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@ -1,73 +0,0 @@
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// QEMU utility functions
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// most of these are just for randomly generated/temporary files
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import { execa } from 'execa';
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import * as crypto from 'node:crypto';
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export type Size = { width: number, height: number };
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export type Rect = {height:number,width:number,x:number,y:number};
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export function BatchRects(size: Size, rects: Array<Rect>): Rect {
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var mergedX = size.width;
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var mergedY = size.height;
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var mergedHeight = 0;
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var mergedWidth = 0;
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// can't batch these
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if(rects.length == 0) {
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return {
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x: 0,
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y: 0,
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width: size.width,
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height: size.height
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};
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}
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if(rects.length == 1) {
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if(rects[0].width == size.width && rects[0].height == size.height) {
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return rects[0];
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}
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}
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rects.forEach((r) => {
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if (r.x < mergedX) mergedX = r.x;
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if (r.y < mergedY) mergedY = r.y;
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});
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rects.forEach(r => {
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if (((r.height + r.y) - mergedY) > mergedHeight) mergedHeight = (r.height + r.y) - mergedY;
|
||||
if (((r.width + r.x) - mergedX) > mergedWidth) mergedWidth = (r.width + r.x) - mergedX;
|
||||
});
|
||||
|
||||
return {
|
||||
x: mergedX,
|
||||
y: mergedY,
|
||||
width: mergedWidth,
|
||||
height: mergedHeight
|
||||
};
|
||||
}
|
||||
|
||||
// Generates a random unicast/local MAC address.
|
||||
export async function GenMacAddress(): Promise<string> {
|
||||
return new Promise((res, rej) => {
|
||||
crypto.randomBytes(6, (err, buf) => {
|
||||
if (err) rej(err);
|
||||
|
||||
// Modify byte 0 to make this MAC address proper
|
||||
let rawByte0 = buf.readUInt8(0);
|
||||
rawByte0 &= ~0b00000011; // keep most of the bits set from what we got, except for the Unicast and Local bits
|
||||
rawByte0 |= 1 << 1; // Always set the Local bit. Leave the Unicast bit unset.
|
||||
buf.writeUInt8(rawByte0);
|
||||
|
||||
// this makes me wanna cry but it seems to working
|
||||
res(
|
||||
buf
|
||||
.toString('hex')
|
||||
.split(/(.{2})/)
|
||||
.filter((o) => o)
|
||||
.join(':')
|
||||
);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
|
|
@ -1,287 +0,0 @@
|
|||
import { execa, ExecaChildProcess } from 'execa';
|
||||
import { EventEmitter } from 'events';
|
||||
import QmpClient from './QmpClient.js';
|
||||
import { QemuDisplay } from './QemuDisplay.js';
|
||||
import { unlink } from 'node:fs/promises';
|
||||
|
||||
export enum VMState {
|
||||
Stopped,
|
||||
Starting,
|
||||
Started,
|
||||
Stopping
|
||||
}
|
||||
|
||||
export type QemuVmDefinition = {
|
||||
id: string;
|
||||
command: string[];
|
||||
};
|
||||
|
||||
/// Temporary path base (for UNIX sockets/etc.)
|
||||
const kVmTmpPathBase = `/tmp`;
|
||||
|
||||
/// The max amount of times QMP connection is allowed to fail before
|
||||
/// the VM is forcefully stopped.
|
||||
const kMaxFailCount = 5;
|
||||
|
||||
let gVMShouldSnapshot = false;
|
||||
|
||||
async function Sleep(ms: number) {
|
||||
return new Promise((resolve) => setTimeout(resolve, ms));
|
||||
}
|
||||
|
||||
export function setSnapshot(val: boolean) {
|
||||
gVMShouldSnapshot = val;
|
||||
}
|
||||
|
||||
export class QemuVM extends EventEmitter {
|
||||
private state = VMState.Stopped;
|
||||
|
||||
private qmpInstance: QmpClient | null = null;
|
||||
private qmpConnected = false;
|
||||
private qmpFailCount = 0;
|
||||
|
||||
private qemuProcess: ExecaChildProcess | null = null;
|
||||
private qemuRunning = false;
|
||||
|
||||
private display: QemuDisplay | null = null;
|
||||
|
||||
private definition: QemuVmDefinition;
|
||||
private addedCommandShit = false;
|
||||
|
||||
constructor(def: QemuVmDefinition) {
|
||||
super();
|
||||
this.definition = def;
|
||||
}
|
||||
|
||||
async Start() {
|
||||
// Don't start while either trying to start or starting.
|
||||
if (this.state == VMState.Started || this.state == VMState.Starting) return;
|
||||
|
||||
|
||||
var cmd = this.definition.command;
|
||||
|
||||
// build additional command line statements to enable qmp/vnc over unix sockets
|
||||
if(!this.addedCommandShit) {
|
||||
cmd.push('-no-shutdown');
|
||||
if(gVMShouldSnapshot)
|
||||
cmd.push('-snapshot');
|
||||
cmd.push(`-qmp`);
|
||||
cmd.push(`unix:${this.GetQmpPath()},server,nowait`);
|
||||
cmd.push(`-vnc`);
|
||||
cmd.push(`unix:${this.GetVncPath()}`);
|
||||
this.addedCommandShit = true;
|
||||
}
|
||||
|
||||
this.VMLog(`Starting QEMU with command \"${cmd.join(' ')}\"`);
|
||||
await this.StartQemu(cmd);
|
||||
}
|
||||
|
||||
async Stop() {
|
||||
// This is called in certain lifecycle places where we can't safely assert state yet
|
||||
//this.AssertState(VMState.Started, 'cannot use QemuVM#Stop on a non-started VM');
|
||||
|
||||
// Start indicating we're stopping, so we don't
|
||||
// erroneously start trying to restart everything
|
||||
// we're going to tear down in this function call.
|
||||
this.SetState(VMState.Stopping);
|
||||
|
||||
// Kill the QEMU process and QMP/display connections if they are running.
|
||||
await this.DisconnectQmp();
|
||||
this.DisconnectDisplay();
|
||||
await this.StopQemu();
|
||||
}
|
||||
|
||||
async Reset() {
|
||||
this.AssertState(VMState.Started, 'cannot use QemuVM#Reset on a non-started VM');
|
||||
|
||||
// let code know the VM is going to reset
|
||||
// N.B: In the crusttest world, a reset simply amounts to a
|
||||
// mean cold reboot of the qemu process basically
|
||||
this.emit('reset');
|
||||
await this.Stop();
|
||||
await Sleep(500);
|
||||
await this.Start();
|
||||
}
|
||||
|
||||
async QmpCommand(command: string, args: any | null): Promise<any> {
|
||||
return await this.qmpInstance?.Execute(command, args);
|
||||
}
|
||||
|
||||
async MonitorCommand(command: string) {
|
||||
this.AssertState(VMState.Started, 'cannot use QemuVM#MonitorCommand on a non-started VM');
|
||||
return await this.QmpCommand('human-monitor-command', {
|
||||
'command-line': command
|
||||
});
|
||||
}
|
||||
|
||||
async ChangeRemovableMedia(deviceName: string, imagePath: string): Promise<void> {
|
||||
this.AssertState(VMState.Started, 'cannot use QemuVM#ChangeRemovableMedia on a non-started VM');
|
||||
// N.B: if this throws, the code which called this should handle the error accordingly
|
||||
await this.QmpCommand('blockdev-change-medium', {
|
||||
device: deviceName, // techinically deprecated, but I don't feel like figuring out QOM path just for a simple function
|
||||
filename: imagePath
|
||||
});
|
||||
}
|
||||
|
||||
async EjectRemovableMedia(deviceName: string) {
|
||||
this.AssertState(VMState.Started, 'cannot use QemuVM#EjectRemovableMedia on a non-started VM');
|
||||
await this.QmpCommand('eject', {
|
||||
device: deviceName
|
||||
});
|
||||
}
|
||||
|
||||
GetDisplay() {
|
||||
return this.display;
|
||||
}
|
||||
|
||||
/// Private fun bits :)
|
||||
|
||||
private VMLog(...args: any[]) {
|
||||
// TODO: hook this into a logger of some sort
|
||||
console.log(`[QemuVM] [${this.definition.id}] ${args.join('')}`);
|
||||
}
|
||||
|
||||
private AssertState(stateShouldBe: VMState, message: string) {
|
||||
if (this.state !== stateShouldBe) throw new Error(message);
|
||||
}
|
||||
|
||||
private SetState(state: VMState) {
|
||||
this.state = state;
|
||||
this.emit('statechange', this.state);
|
||||
}
|
||||
|
||||
private GetQmpPath() {
|
||||
return `${kVmTmpPathBase}/socket2-${this.definition.id}-ctrl`;
|
||||
}
|
||||
|
||||
private GetVncPath() {
|
||||
return `${kVmTmpPathBase}/socket2-${this.definition.id}-vnc`;
|
||||
}
|
||||
|
||||
private async StartQemu(split: Array<string>) {
|
||||
let self = this;
|
||||
|
||||
this.SetState(VMState.Starting);
|
||||
|
||||
// Start QEMU
|
||||
this.qemuProcess = execa(split[0], split.slice(1));
|
||||
|
||||
this.qemuProcess.on('spawn', async () => {
|
||||
self.qemuRunning = true;
|
||||
await Sleep(500);
|
||||
await self.ConnectQmp();
|
||||
});
|
||||
|
||||
this.qemuProcess.on('exit', async (code) => {
|
||||
self.qemuRunning = false;
|
||||
console.log("qemu process go boom")
|
||||
|
||||
// ?
|
||||
if (self.qmpConnected) {
|
||||
await self.DisconnectQmp();
|
||||
}
|
||||
|
||||
self.DisconnectDisplay();
|
||||
|
||||
if (self.state != VMState.Stopping) {
|
||||
if (code == 0) {
|
||||
await Sleep(500);
|
||||
await self.StartQemu(split);
|
||||
} else {
|
||||
self.VMLog('QEMU exited with a non-zero exit code. This usually means an error in the command line. Stopping VM.');
|
||||
await self.Stop();
|
||||
}
|
||||
} else {
|
||||
this.SetState(VMState.Stopped);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
private async StopQemu() {
|
||||
if (this.qemuRunning == true) this.qemuProcess?.kill('SIGKILL');
|
||||
}
|
||||
|
||||
private async ConnectQmp() {
|
||||
let self = this;
|
||||
|
||||
if (!this.qmpConnected) {
|
||||
self.qmpInstance = new QmpClient();
|
||||
|
||||
self.qmpInstance.on('close', async () => {
|
||||
self.qmpConnected = false;
|
||||
|
||||
// If we aren't stopping, then we do actually need to care QMP disconnected
|
||||
if (self.state != VMState.Stopping) {
|
||||
if (self.qmpFailCount++ < kMaxFailCount) {
|
||||
this.VMLog(`Failed to connect to QMP ${self.qmpFailCount} times`);
|
||||
await Sleep(500);
|
||||
await self.ConnectQmp();
|
||||
} else {
|
||||
this.VMLog(`Failed to connect to QMP ${self.qmpFailCount} times, giving up`);
|
||||
await self.Stop();
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
self.qmpInstance.on('event', async (ev) => {
|
||||
switch (ev.event) {
|
||||
// Handle the STOP event sent when using -no-shutdown
|
||||
case 'STOP':
|
||||
await self.qmpInstance?.Execute('system_reset');
|
||||
break;
|
||||
case 'RESET':
|
||||
self.VMLog('got a reset event!');
|
||||
await self.qmpInstance?.Execute('cont');
|
||||
break;
|
||||
}
|
||||
});
|
||||
|
||||
self.qmpInstance.on('qmp-ready', async (hadError) => {
|
||||
self.VMLog('QMP ready');
|
||||
|
||||
self.display = new QemuDisplay(self.GetVncPath());
|
||||
self.display.Connect();
|
||||
|
||||
// QMP has been connected so the VM is ready to be considered started
|
||||
self.qmpFailCount = 0;
|
||||
self.qmpConnected = true;
|
||||
self.SetState(VMState.Started);
|
||||
});
|
||||
|
||||
try {
|
||||
await Sleep(500);
|
||||
this.qmpInstance?.ConnectUNIX(this.GetQmpPath());
|
||||
} catch (err) {
|
||||
// just try again
|
||||
await Sleep(500);
|
||||
await this.ConnectQmp();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private async DisconnectDisplay() {
|
||||
try {
|
||||
this.display?.Disconnect();
|
||||
this.display = null; // disassociate with that display object.
|
||||
|
||||
await unlink(this.GetVncPath());
|
||||
} catch (err) {
|
||||
// oh well lol
|
||||
}
|
||||
}
|
||||
|
||||
private async DisconnectQmp() {
|
||||
if (this.qmpConnected) return;
|
||||
if(this.qmpInstance == null)
|
||||
return;
|
||||
|
||||
this.qmpConnected = false;
|
||||
this.qmpInstance.end();
|
||||
this.qmpInstance = null;
|
||||
try {
|
||||
await unlink(this.GetQmpPath());
|
||||
} catch(err) {
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,135 +0,0 @@
|
|||
// This was originally based off the contents of the node-qemu-qmp package,
|
||||
// but I've modified it possibly to the point where it could be treated as my own creation.
|
||||
|
||||
import split from 'split';
|
||||
|
||||
import { Socket } from 'net';
|
||||
|
||||
export type QmpCallback = (err: Error | null, res: any | null) => void;
|
||||
|
||||
type QmpCommandEntry = {
|
||||
callback: QmpCallback | null;
|
||||
id: number;
|
||||
};
|
||||
|
||||
// TODO: Instead of the client "Is-A"ing a Socket, this should instead contain/store a Socket,
|
||||
// (preferrably) passed by the user, to use for QMP communications.
|
||||
// The client shouldn't have to know or care about the protocol, and it effectively hackily uses the fact
|
||||
// Socket extends EventEmitter.
|
||||
|
||||
export default class QmpClient extends Socket {
|
||||
public qmpHandshakeData: any;
|
||||
private commandEntries: QmpCommandEntry[] = [];
|
||||
private lastID = 0;
|
||||
|
||||
private ExecuteSync(command: string, args: any | null, callback: QmpCallback | null) {
|
||||
let cmd: QmpCommandEntry = {
|
||||
callback: callback,
|
||||
id: ++this.lastID
|
||||
};
|
||||
|
||||
let qmpOut: any = {
|
||||
execute: command,
|
||||
id: cmd.id
|
||||
};
|
||||
|
||||
if (args) qmpOut['arguments'] = args;
|
||||
|
||||
// Add stuff
|
||||
this.commandEntries.push(cmd);
|
||||
this.write(JSON.stringify(qmpOut));
|
||||
}
|
||||
|
||||
// TODO: Make this function a bit more ergonomic?
|
||||
async Execute(command: string, args: any | null = null): Promise<any> {
|
||||
return new Promise((res, rej) => {
|
||||
this.ExecuteSync(command, args, (err, result) => {
|
||||
if (err) rej(err);
|
||||
res(result);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
private Handshake(callback: () => void) {
|
||||
this.write(
|
||||
JSON.stringify({
|
||||
execute: 'qmp_capabilities'
|
||||
})
|
||||
);
|
||||
|
||||
this.once('data', (data) => {
|
||||
// Once QEMU replies to us, the handshake is done.
|
||||
// We do not negotiate anything special.
|
||||
callback();
|
||||
});
|
||||
}
|
||||
|
||||
// this can probably be made async
|
||||
private ConnectImpl() {
|
||||
let self = this;
|
||||
|
||||
this.once('connect', () => {
|
||||
this.removeAllListeners('error');
|
||||
});
|
||||
|
||||
this.once('error', (err) => {
|
||||
// just rethrow lol
|
||||
//throw err;
|
||||
|
||||
console.log("you have pants: rules,", err);
|
||||
});
|
||||
|
||||
this.once('data', (data) => {
|
||||
// Handshake QMP with the server.
|
||||
self.qmpHandshakeData = JSON.parse(data.toString('utf8')).QMP;
|
||||
self.Handshake(() => {
|
||||
// Now ready to parse QMP responses/events.
|
||||
self.pipe(split(JSON.parse))
|
||||
.on('data', (json: any) => {
|
||||
if (json == null) return self.end();
|
||||
|
||||
if (json.return || json.error) {
|
||||
// Our handshake has a spurious return because we never assign it an ID,
|
||||
// and it is gathered by this pipe for some reason I'm not quite sure about.
|
||||
// So, just for safety's sake, don't process any return objects which don't have an ID attached to them.
|
||||
if (json.id == null) return;
|
||||
|
||||
let callbackEntry = this.commandEntries.find((entry) => entry.id === json.id);
|
||||
let error: Error | null = json.error ? new Error(json.error.desc) : null;
|
||||
|
||||
// we somehow didn't find a callback entry for this response.
|
||||
// I don't know how. Techinically not an error..., but I guess you're not getting a reponse to whatever causes this to happen
|
||||
if (callbackEntry == null) return;
|
||||
|
||||
if (callbackEntry?.callback) callbackEntry.callback(error, json.return);
|
||||
|
||||
// Remove the completed callback entry.
|
||||
this.commandEntries.slice(this.commandEntries.indexOf(callbackEntry));
|
||||
} else if (json.event) {
|
||||
this.emit('event', json);
|
||||
}
|
||||
})
|
||||
.on('error', () => {
|
||||
// Give up.
|
||||
return self.end();
|
||||
});
|
||||
this.emit('qmp-ready');
|
||||
});
|
||||
});
|
||||
|
||||
this.once('close', () => {
|
||||
this.end();
|
||||
this.removeAllListeners('data'); // wow. good job bud. cool memory leak
|
||||
});
|
||||
}
|
||||
|
||||
Connect(host: string, port: number) {
|
||||
super.connect(port, host);
|
||||
this.ConnectImpl();
|
||||
}
|
||||
|
||||
ConnectUNIX(path: string) {
|
||||
super.connect(path);
|
||||
this.ConnectImpl();
|
||||
}
|
||||
}
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
export * from './QemuDisplay.js';
|
||||
export * from './QemuUtil.js';
|
||||
export * from './QemuVM.js';
|
||||
|
|
@ -1,21 +0,0 @@
|
|||
Copyright 2021 Filipe Calaça Barbosa
|
||||
Copyright 2022 dither
|
||||
Copyright 2023-2024 Lily Tsuru/modeco80 <lily.modeco80@protonmail.ch>
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in all
|
||||
copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||||
SOFTWARE.
|
||||
|
|
@ -1,11 +0,0 @@
|
|||
# Notice
|
||||
|
||||
The source here was originally taken from a fork of [vnc-rfb-client](https://github.com/ayunami2000/vnc-rfb-client) made for the LucidVM project, available [here](https://github.com/lucidvm/rfb).
|
||||
|
||||
It has been grossly modified for the usecases for the socket2 backend, but is more than likely usable to other clients.
|
||||
|
||||
- converted to (strict) TypeScript; my initial port beforehand was not strict and it Sucked
|
||||
- Also, actually use interfaces, and reduce the amount of code duplicated significantly in the rect decoders.
|
||||
- all modules rewritten to use ESM
|
||||
- some noisy debug prints removed
|
||||
- (some, very tiny) code cleanup
|
||||
|
|
@ -1,919 +0,0 @@
|
|||
|
||||
import { IRectDecoder } from './decoders/decoder.js';
|
||||
import { HextileDecoder } from './decoders/hextile.js';
|
||||
import { RawDecoder } from './decoders/raw.js';
|
||||
import { ZrleDecoder } from './decoders/zrle.js';
|
||||
// import { TightDecoder } from "./decoders/tight.js";
|
||||
import { CopyRectDecoder } from './decoders/copyrect.js';
|
||||
|
||||
import { EventEmitter } from 'node:events';
|
||||
|
||||
import { consts } from './constants.js';
|
||||
|
||||
import * as net from 'node:net';
|
||||
import * as crypto from 'node:crypto';
|
||||
|
||||
import { SocketBuffer } from './socketbuffer.js';
|
||||
|
||||
import { VncRectangle, Color3, PixelFormat, Cursor } from './types.js';
|
||||
|
||||
export class VncClient extends EventEmitter {
|
||||
// These are in no particular order.
|
||||
|
||||
public debug: boolean = false;
|
||||
|
||||
private _connected: boolean = false;
|
||||
private _authenticated: boolean = false;
|
||||
private _version: string = "";
|
||||
private _password: string = "";
|
||||
|
||||
private _audioChannels: number = 2;
|
||||
private _audioFrequency: number = 22050;
|
||||
|
||||
private _rects: number = 0;
|
||||
|
||||
private _decoders: Array<IRectDecoder> = [];
|
||||
|
||||
private _fps: number;
|
||||
private _timerInterval: number;
|
||||
private _timerPointer : NodeJS.Timeout|null = null;
|
||||
|
||||
public fb: Buffer = Buffer.from([]);
|
||||
|
||||
private _handshaked: boolean = false;
|
||||
private _waitingServerInit: boolean = false;
|
||||
private _expectingChallenge: boolean = false;
|
||||
private _challengeResponseSent: boolean = false;
|
||||
|
||||
private _set8BitColor: boolean = false;
|
||||
private _frameBufferReady = false;
|
||||
private _firstFrameReceived = false;
|
||||
private _processingFrame = false;
|
||||
|
||||
private _relativePointer: boolean = false;
|
||||
|
||||
public bigEndianFlag: boolean = false;
|
||||
|
||||
public clientWidth: number = 0;
|
||||
public clientHeight: number = 0;
|
||||
public clientName: string = "";
|
||||
|
||||
public pixelFormat: PixelFormat = {
|
||||
bitsPerPixel: 0,
|
||||
depth: 0,
|
||||
bigEndianFlag: 0,
|
||||
trueColorFlag: 0,
|
||||
redMax: 0,
|
||||
greenMax: 0,
|
||||
blueMax: 0,
|
||||
redShift: 0,
|
||||
greenShift: 0,
|
||||
blueShift: 0
|
||||
};
|
||||
|
||||
private _colorMap: Color3[] = [];
|
||||
private _audioData: Buffer = Buffer.from([]);
|
||||
|
||||
private _cursor: Cursor = {
|
||||
width: 0,
|
||||
height: 0,
|
||||
x: 0,
|
||||
y: 0,
|
||||
cursorPixels: null,
|
||||
bitmask: null,
|
||||
posX: 0,
|
||||
posY: 0
|
||||
};
|
||||
|
||||
public encodings: number[];
|
||||
|
||||
private _connection: net.Socket|null = null;
|
||||
private _socketBuffer: SocketBuffer;
|
||||
|
||||
static get consts() {
|
||||
return {
|
||||
encodings: consts.encodings
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Return if client is connected
|
||||
* @returns {boolean}
|
||||
*/
|
||||
get connected() {
|
||||
return this._connected;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return if client is authenticated
|
||||
* @returns {boolean}
|
||||
*/
|
||||
get authenticated() {
|
||||
return this._authenticated;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return negotiated protocol version
|
||||
* @returns {string}
|
||||
*/
|
||||
get protocolVersion() {
|
||||
return this._version;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the local port used by the client
|
||||
* @returns {number}
|
||||
*/
|
||||
get localPort() {
|
||||
return this._connection ? this._connection?.localPort : 0;
|
||||
}
|
||||
|
||||
constructor(options: any = { debug: false, fps: 0, encodings: [] }) {
|
||||
super();
|
||||
|
||||
this._socketBuffer = new SocketBuffer();
|
||||
|
||||
this.resetState();
|
||||
this.debug = options.debug || false;
|
||||
this._fps = Number(options.fps) || 0;
|
||||
// Calculate interval to meet configured FPS
|
||||
this._timerInterval = this._fps > 0 ? 1000 / this._fps : 0;
|
||||
|
||||
// Default encodings
|
||||
this.encodings =
|
||||
options.encodings && options.encodings.length
|
||||
? options.encodings
|
||||
: [consts.encodings.copyRect, consts.encodings.zrle, consts.encodings.hextile, consts.encodings.raw, consts.encodings.pseudoDesktopSize];
|
||||
|
||||
this._audioChannels = options.audioChannels || 2;
|
||||
this._audioFrequency = options.audioFrequency || 22050;
|
||||
|
||||
this._rects = 0;
|
||||
|
||||
this._decoders[consts.encodings.raw] = new RawDecoder();
|
||||
// TODO: Implement tight encoding
|
||||
// this._decoders[encodings.tight] = new tightDecoder();
|
||||
this._decoders[consts.encodings.zrle] = new ZrleDecoder();
|
||||
this._decoders[consts.encodings.copyRect] = new CopyRectDecoder();
|
||||
this._decoders[consts.encodings.hextile] = new HextileDecoder();
|
||||
|
||||
if (this._timerInterval) {
|
||||
this._fbTimer();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Timer used to limit the rate of frame update requests according to configured FPS
|
||||
* @private
|
||||
*/
|
||||
_fbTimer() {
|
||||
this._timerPointer = setTimeout(() => {
|
||||
this._fbTimer();
|
||||
if (this._firstFrameReceived && !this._processingFrame && this._fps > 0) {
|
||||
this.requestFrameUpdate();
|
||||
}
|
||||
}, this._timerInterval);
|
||||
}
|
||||
|
||||
/**
|
||||
* Adjuste the configured FPS
|
||||
* @param fps {number} - Number of update requests send by second
|
||||
*/
|
||||
changeFps(fps: number) {
|
||||
if (!Number.isNaN(fps)) {
|
||||
this._fps = Number(fps);
|
||||
this._timerInterval = this._fps > 0 ? 1000 / this._fps : 0;
|
||||
|
||||
if (this._timerPointer && !this._fps) {
|
||||
// If FPS was zeroed stop the timer
|
||||
clearTimeout(this._timerPointer);
|
||||
this._timerPointer = null;
|
||||
} else if (this._fps && !this._timerPointer) {
|
||||
// If FPS was zero and is now set, start the timer
|
||||
this._fbTimer();
|
||||
}
|
||||
} else {
|
||||
throw new Error('Invalid FPS. Must be a number.');
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Starts the connection with the VNC server
|
||||
* @param options
|
||||
*/
|
||||
connect(
|
||||
options: any /* = {
|
||||
host: '',
|
||||
password: '',
|
||||
path: '',
|
||||
set8BitColor: false,
|
||||
port: 5900
|
||||
} */
|
||||
) {
|
||||
if (options.password) {
|
||||
this._password = options.password;
|
||||
}
|
||||
|
||||
this._set8BitColor = options.set8BitColor || false;
|
||||
|
||||
if (options.path === null) {
|
||||
if (!options.host) {
|
||||
throw new Error('Host missing.');
|
||||
}
|
||||
this._connection = net.connect(options.port || 5900, options.host);
|
||||
|
||||
// disable nagle's algorithm for TCP
|
||||
this._connection?.setNoDelay();
|
||||
} else {
|
||||
// unix socket. bodged in but oh well
|
||||
this._connection = net.connect(options.path);
|
||||
}
|
||||
|
||||
this._connection?.on('connect', () => {
|
||||
this._connected = true;
|
||||
this.emit('connected');
|
||||
});
|
||||
|
||||
this._connection?.on('close', () => {
|
||||
this.resetState();
|
||||
this.emit('closed');
|
||||
});
|
||||
|
||||
this._connection?.on('timeout', () => {
|
||||
this.emit('connectTimeout');
|
||||
});
|
||||
|
||||
this._connection?.on('error', (err) => {
|
||||
this.emit('connectError', err);
|
||||
});
|
||||
|
||||
this._connection?.on('data', async (data) => {
|
||||
this._socketBuffer.pushData(data);
|
||||
|
||||
if (!this._handshaked) {
|
||||
this._handleHandshake();
|
||||
} else if (this._expectingChallenge) {
|
||||
this._handleAuthChallenge();
|
||||
} else if (this._waitingServerInit) {
|
||||
await this._handleServerInit();
|
||||
} else {
|
||||
await this._handleData();
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Disconnect the client
|
||||
*/
|
||||
disconnect() {
|
||||
if (this._connection) {
|
||||
this._connection?.end();
|
||||
this.resetState();
|
||||
this.emit('disconnected');
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Request the server a frame update
|
||||
* @param full - If the server should send all the frame buffer or just the last changes
|
||||
* @param incremental - Incremental number for not full requests
|
||||
* @param x - X position of the update area desired, usually 0
|
||||
* @param y - Y position of the update area desired, usually 0
|
||||
* @param width - Width of the update area desired, usually client width
|
||||
* @param height - Height of the update area desired, usually client height
|
||||
*/
|
||||
requestFrameUpdate(full = false, incremental = 1, x = 0, y = 0, width = this.clientWidth, height = this.clientHeight) {
|
||||
if ((this._frameBufferReady || full) && this._connection && !this._rects) {
|
||||
// Request data
|
||||
const message = Buffer.alloc(10);
|
||||
message.writeUInt8(3); // Message type
|
||||
message.writeUInt8(full ? 0 : incremental, 1); // Incremental
|
||||
message.writeUInt16BE(x, 2); // X-Position
|
||||
message.writeUInt16BE(y, 4); // Y-Position
|
||||
message.writeUInt16BE(width, 6); // Width
|
||||
message.writeUInt16BE(height, 8); // Height
|
||||
|
||||
this._connection?.write(message);
|
||||
|
||||
this._frameBufferReady = true;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle handshake msg
|
||||
* @private
|
||||
*/
|
||||
_handleHandshake() {
|
||||
// Handshake, negotiating protocol version
|
||||
if (this._socketBuffer.toString() === consts.versionString.V3_003) {
|
||||
this._log('Sending 3.3', true);
|
||||
this._connection?.write(consts.versionString.V3_003);
|
||||
this._version = '3.3';
|
||||
} else if (this._socketBuffer.toString() === consts.versionString.V3_007) {
|
||||
this._log('Sending 3.7', true);
|
||||
this._connection?.write(consts.versionString.V3_007);
|
||||
this._version = '3.7';
|
||||
} else if (this._socketBuffer.toString() === consts.versionString.V3_008) {
|
||||
this._log('Sending 3.8', true);
|
||||
this._connection?.write(consts.versionString.V3_008);
|
||||
this._version = '3.8';
|
||||
} else {
|
||||
// Negotiating auth mechanism
|
||||
this._handshaked = true;
|
||||
if (this._socketBuffer.includes(0x02) && this._password) {
|
||||
this._log('Password provided and server support VNC auth. Choosing VNC auth.', true);
|
||||
this._expectingChallenge = true;
|
||||
this._connection?.write(Buffer.from([0x02]));
|
||||
} else if (this._socketBuffer.includes(1)) {
|
||||
this._log('Password not provided or server does not support VNC auth. Trying none.', true);
|
||||
this._connection?.write(Buffer.from([0x01]));
|
||||
if (this._version === '3.7') {
|
||||
this._waitingServerInit = true;
|
||||
} else {
|
||||
this._expectingChallenge = true;
|
||||
this._challengeResponseSent = true;
|
||||
}
|
||||
} else {
|
||||
this._log('Connection error. Msg: ' + this._socketBuffer.toString());
|
||||
this.disconnect();
|
||||
}
|
||||
}
|
||||
|
||||
this._socketBuffer?.flush(false);
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle VNC auth challenge
|
||||
* @private
|
||||
*/
|
||||
_handleAuthChallenge() {
|
||||
if (this._challengeResponseSent) {
|
||||
// Challenge response already sent. Checking result.
|
||||
|
||||
if (this._socketBuffer.buffer[3] === 0) {
|
||||
// Auth success
|
||||
this._authenticated = true;
|
||||
this.emit('authenticated');
|
||||
this._expectingChallenge = false;
|
||||
this._sendClientInit();
|
||||
} else {
|
||||
// Auth fail
|
||||
this.emit('authError');
|
||||
this.resetState();
|
||||
}
|
||||
} else {
|
||||
const key = Buffer.alloc(8);
|
||||
key.fill(0);
|
||||
key.write(this._password.slice(0, 8));
|
||||
|
||||
this.reverseBits(key);
|
||||
|
||||
const des1 = crypto.createCipheriv('des', key, Buffer.alloc(8));
|
||||
const des2 = crypto.createCipheriv('des', key, Buffer.alloc(8));
|
||||
|
||||
const response = Buffer.alloc(16);
|
||||
|
||||
response.fill(des1.update(this._socketBuffer.buffer.slice(0, 8)), 0, 8);
|
||||
response.fill(des2.update(this._socketBuffer.buffer.slice(8, 16)), 8, 16);
|
||||
|
||||
this._connection?.write(response);
|
||||
this._challengeResponseSent = true;
|
||||
}
|
||||
|
||||
this._socketBuffer.flush(false);
|
||||
}
|
||||
|
||||
/**
|
||||
* Reverse bits order of a byte
|
||||
* @param buf - Buffer to be flipped
|
||||
*/
|
||||
reverseBits(buf: Buffer) {
|
||||
for (let x = 0; x < buf.length; x++) {
|
||||
let newByte = 0;
|
||||
newByte += buf[x] & 128 ? 1 : 0;
|
||||
newByte += buf[x] & 64 ? 2 : 0;
|
||||
newByte += buf[x] & 32 ? 4 : 0;
|
||||
newByte += buf[x] & 16 ? 8 : 0;
|
||||
newByte += buf[x] & 8 ? 16 : 0;
|
||||
newByte += buf[x] & 4 ? 32 : 0;
|
||||
newByte += buf[x] & 2 ? 64 : 0;
|
||||
newByte += buf[x] & 1 ? 128 : 0;
|
||||
buf[x] = newByte;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle server init msg
|
||||
* @returns {Promise<void>}
|
||||
* @private
|
||||
*/
|
||||
async _handleServerInit() {
|
||||
this._waitingServerInit = false;
|
||||
|
||||
await this._socketBuffer.waitBytes(18);
|
||||
|
||||
this.clientWidth = this._socketBuffer.readUInt16BE();
|
||||
this.clientHeight = this._socketBuffer.readUInt16BE();
|
||||
|
||||
this.pixelFormat.bitsPerPixel = this._socketBuffer.readUInt8();
|
||||
this.pixelFormat.depth = this._socketBuffer.readUInt8();
|
||||
this.pixelFormat.bigEndianFlag = this._socketBuffer.readUInt8();
|
||||
this.pixelFormat.trueColorFlag = this._socketBuffer.readUInt8();
|
||||
this.pixelFormat.redMax = this.bigEndianFlag ? this._socketBuffer.readUInt16BE() : this._socketBuffer.readUInt16LE();
|
||||
this.pixelFormat.greenMax = this.bigEndianFlag ? this._socketBuffer.readUInt16BE() : this._socketBuffer.readUInt16LE();
|
||||
this.pixelFormat.blueMax = this.bigEndianFlag ? this._socketBuffer.readUInt16BE() : this._socketBuffer.readUInt16LE();
|
||||
this.pixelFormat.redShift = this._socketBuffer.readInt8();
|
||||
this.pixelFormat.greenShift = this._socketBuffer.readInt8();
|
||||
this.pixelFormat.blueShift = this._socketBuffer.readInt8();
|
||||
this.updateFbSize();
|
||||
this.clientName = this._socketBuffer.buffer.slice(24).toString();
|
||||
|
||||
this._socketBuffer.flush(false);
|
||||
|
||||
// FIXME: Removed because these are noise
|
||||
//this._log(`Screen size: ${this.clientWidth}x${this.clientHeight}`);
|
||||
//this._log(`Client name: ${this.clientName}`);
|
||||
//this._log(`pixelFormat: ${JSON.stringify(this.pixelFormat)}`);
|
||||
|
||||
if (this._set8BitColor) {
|
||||
//this._log(`8 bit color format requested, only raw encoding is supported.`);
|
||||
this._setPixelFormatToColorMap();
|
||||
}
|
||||
|
||||
this._sendEncodings();
|
||||
|
||||
setTimeout(() => {
|
||||
this.requestFrameUpdate(true);
|
||||
}, 1000);
|
||||
}
|
||||
|
||||
/**
|
||||
* Update the frame buffer size according to client width and height (RGBA)
|
||||
*/
|
||||
updateFbSize() {
|
||||
this.fb = Buffer.alloc(this.clientWidth * this.clientHeight * 4);
|
||||
}
|
||||
|
||||
/**
|
||||
* Request the server to change to 8bit color format (Color palette). Only works with Raw encoding.
|
||||
* @private
|
||||
*/
|
||||
_setPixelFormatToColorMap() {
|
||||
this._log(`Requesting PixelFormat change to ColorMap (8 bits).`);
|
||||
|
||||
const message = Buffer.alloc(20);
|
||||
message.writeUInt8(0); // Tipo da mensagem
|
||||
message.writeUInt8(0, 1); // Padding
|
||||
message.writeUInt8(0, 2); // Padding
|
||||
message.writeUInt8(0, 3); // Padding
|
||||
|
||||
message.writeUInt8(8, 4); // PixelFormat - BitsPerPixel
|
||||
message.writeUInt8(8, 5); // PixelFormat - Depth
|
||||
message.writeUInt8(0, 6); // PixelFormat - BigEndianFlag
|
||||
message.writeUInt8(0, 7); // PixelFormat - TrueColorFlag
|
||||
message.writeUInt16BE(255, 8); // PixelFormat - RedMax
|
||||
message.writeUInt16BE(255, 10); // PixelFormat - GreenMax
|
||||
message.writeUInt16BE(255, 12); // PixelFormat - BlueMax
|
||||
message.writeUInt8(0, 14); // PixelFormat - RedShift
|
||||
message.writeUInt8(8, 15); // PixelFormat - GreenShift
|
||||
message.writeUInt8(16, 16); // PixelFormat - BlueShift
|
||||
message.writeUInt8(0, 17); // PixelFormat - Padding
|
||||
message.writeUInt8(0, 18); // PixelFormat - Padding
|
||||
message.writeUInt8(0, 19); // PixelFormat - Padding
|
||||
|
||||
// Envia um setPixelFormat trocando para mapa de cores
|
||||
this._connection?.write(message);
|
||||
|
||||
this.pixelFormat.bitsPerPixel = 8;
|
||||
this.pixelFormat.depth = 8;
|
||||
}
|
||||
|
||||
/**
|
||||
* Send supported encodings
|
||||
* @private
|
||||
*/
|
||||
_sendEncodings() {
|
||||
//this._log('Sending encodings.');
|
||||
// If this._set8BitColor is set, only copyrect and raw encodings are supported
|
||||
const message = Buffer.alloc(4 + (!this._set8BitColor ? this.encodings.length : 2) * 4);
|
||||
message.writeUInt8(2); // Message type
|
||||
message.writeUInt8(0, 1); // Padding
|
||||
message.writeUInt16BE(!this._set8BitColor ? this.encodings.length : 2, 2); // Padding
|
||||
|
||||
let offset = 4;
|
||||
// If 8bits is not set, send all encodings configured
|
||||
if (!this._set8BitColor) {
|
||||
for (const e of this.encodings) {
|
||||
message.writeInt32BE(e, offset);
|
||||
offset += 4;
|
||||
}
|
||||
} else {
|
||||
message.writeInt32BE(consts.encodings.copyRect, offset);
|
||||
message.writeInt32BE(consts.encodings.raw, offset + 4);
|
||||
}
|
||||
|
||||
this._connection?.write(message);
|
||||
}
|
||||
|
||||
/**
|
||||
* Send client init msg
|
||||
* @private
|
||||
*/
|
||||
_sendClientInit() {
|
||||
//this._log(`Sending clientInit`);
|
||||
this._waitingServerInit = true;
|
||||
// Shared bit set
|
||||
this._connection?.write('1');
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle data msg
|
||||
* @returns {Promise<void>}
|
||||
* @private
|
||||
*/
|
||||
async _handleData() {
|
||||
if (!this._rects) {
|
||||
switch (this._socketBuffer.buffer[0]) {
|
||||
case consts.serverMsgTypes.fbUpdate:
|
||||
await this._handleFbUpdate();
|
||||
break;
|
||||
|
||||
case consts.serverMsgTypes.setColorMap:
|
||||
await this._handleSetColorMap();
|
||||
break;
|
||||
|
||||
case consts.serverMsgTypes.bell:
|
||||
this.emit('bell');
|
||||
this._socketBuffer.flush();
|
||||
break;
|
||||
|
||||
case consts.serverMsgTypes.cutText:
|
||||
await this._handleCutText();
|
||||
break;
|
||||
|
||||
case consts.serverMsgTypes.qemuAudio:
|
||||
await this._handleQemuAudio();
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Cut message (text was copied to clipboard on server)
|
||||
* @returns {Promise<void>}
|
||||
* @private
|
||||
*/
|
||||
async _handleCutText() {
|
||||
this._socketBuffer.setOffset(4);
|
||||
await this._socketBuffer.waitBytes(1);
|
||||
const length = this._socketBuffer.readUInt32BE();
|
||||
await this._socketBuffer.waitBytes(length);
|
||||
this.emit('cutText', this._socketBuffer.readNBytesOffset(length).toString());
|
||||
this._socketBuffer.flush();
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the pseudocursor framebuffer
|
||||
*/
|
||||
_getPseudoCursor() {
|
||||
if (!this._cursor.width)
|
||||
return {
|
||||
width: 1,
|
||||
height: 1,
|
||||
data: Buffer.alloc(4)
|
||||
};
|
||||
const { width, height, bitmask, cursorPixels } = this._cursor;
|
||||
|
||||
if(bitmask == null || cursorPixels == null)
|
||||
throw new Error('No cursor data to get!');
|
||||
|
||||
const data = Buffer.alloc(height * width * 4);
|
||||
for (var y = 0; y < height; y++) {
|
||||
for (var x = 0; x < width; x++) {
|
||||
const offset = (y * width + x) * 4;
|
||||
const active = (bitmask[Math.floor((width + 7) / 8) * y + Math.floor(x / 8)] >> (7 - (x % 8))) & 1;
|
||||
if (active) {
|
||||
switch (this.pixelFormat.bitsPerPixel) {
|
||||
case 8:
|
||||
console.log(8);
|
||||
const index = cursorPixels.readUInt8(offset);
|
||||
// @ts-ignore (This line is extremely suspect anyways. I bet this is horribly broken!!)
|
||||
const color = this._colorMap[index] | 0xff;
|
||||
data.writeIntBE(color, offset, 4);
|
||||
break;
|
||||
case 32:
|
||||
// TODO: compatibility with VMware actually using the alpha channel
|
||||
const b = cursorPixels.readUInt8(offset);
|
||||
const g = cursorPixels.readUInt8(offset + 1);
|
||||
const r = cursorPixels.readUInt8(offset + 2);
|
||||
data.writeUInt8(r, offset);
|
||||
data.writeUInt8(g, offset + 1);
|
||||
data.writeUInt8(b, offset + 2);
|
||||
data.writeUInt8(0xff, offset + 3);
|
||||
break;
|
||||
default:
|
||||
data.writeIntBE(cursorPixels.readIntBE(offset, this.pixelFormat.bitsPerPixel / 8), offset, this.pixelFormat.bitsPerPixel / 8);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return {
|
||||
x: this._cursor.x,
|
||||
y: this._cursor.y,
|
||||
width,
|
||||
height,
|
||||
data
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle a rects of update message
|
||||
*/
|
||||
async _handleRect() {
|
||||
this._processingFrame = true;
|
||||
const sendFbUpdate = this._rects;
|
||||
|
||||
while (this._rects) {
|
||||
await this._socketBuffer.waitBytes(12);
|
||||
const rect: VncRectangle = {
|
||||
x: this._socketBuffer.readUInt16BE(),
|
||||
y: this._socketBuffer.readUInt16BE(),
|
||||
width: this._socketBuffer.readUInt16BE(),
|
||||
height: this._socketBuffer.readUInt16BE(),
|
||||
encoding: this._socketBuffer.readInt32BE(),
|
||||
data: null // for now
|
||||
};
|
||||
|
||||
if (rect.encoding === consts.encodings.pseudoQemuAudio) {
|
||||
this.sendAudio(true);
|
||||
this.sendAudioConfig(this._audioChannels, this._audioFrequency); //todo: future: setFrequency(...) to update mid thing
|
||||
} else if (rect.encoding === consts.encodings.pseudoQemuPointerMotionChange) {
|
||||
this._relativePointer = rect.x == 0;
|
||||
} else if (rect.encoding === consts.encodings.pseudoCursor) {
|
||||
const dataSize = rect.width * rect.height * (this.pixelFormat.bitsPerPixel / 8);
|
||||
const bitmaskSize = Math.floor((rect.width + 7) / 8) * rect.height;
|
||||
this._cursor.width = rect.width;
|
||||
this._cursor.height = rect.height;
|
||||
this._cursor.x = rect.x;
|
||||
this._cursor.y = rect.y;
|
||||
this._cursor.cursorPixels = this._socketBuffer.readNBytesOffset(dataSize);
|
||||
this._cursor.bitmask = this._socketBuffer.readNBytesOffset(bitmaskSize);
|
||||
rect.data = Buffer.concat([this._cursor.cursorPixels, this._cursor.bitmask]);
|
||||
this.emit('cursorChanged', this._getPseudoCursor());
|
||||
} else if (rect.encoding === consts.encodings.pseudoDesktopSize) {
|
||||
this._log('Frame Buffer size change requested by the server', true);
|
||||
this.clientHeight = rect.height;
|
||||
this.clientWidth = rect.width;
|
||||
this.updateFbSize();
|
||||
this.emit('desktopSizeChanged', { width: this.clientWidth, height: this.clientHeight });
|
||||
} else if (this._decoders[rect.encoding]) {
|
||||
await this._decoders[rect.encoding].decode(
|
||||
rect,
|
||||
this.fb,
|
||||
this.pixelFormat.bitsPerPixel,
|
||||
this._colorMap,
|
||||
this.clientWidth,
|
||||
this.clientHeight,
|
||||
this._socketBuffer,
|
||||
this.pixelFormat.depth
|
||||
);
|
||||
this.emit('rectUpdateProcessed', rect);
|
||||
} else {
|
||||
this._log('Non supported update received. Encoding: ' + rect.encoding);
|
||||
}
|
||||
this._rects--;
|
||||
this.emit('rectProcessed', rect);
|
||||
|
||||
if (!this._rects) {
|
||||
this._socketBuffer.flush(true);
|
||||
}
|
||||
}
|
||||
|
||||
if (sendFbUpdate) {
|
||||
if (!this._firstFrameReceived) {
|
||||
this._firstFrameReceived = true;
|
||||
this.emit('firstFrameUpdate', this.fb);
|
||||
}
|
||||
this._log('Frame buffer updated.', true);
|
||||
this.emit('frameUpdated', this.fb);
|
||||
}
|
||||
|
||||
this._processingFrame = false;
|
||||
|
||||
if (this._fps === 0) {
|
||||
// If FPS is not set, request a new update as soon as the last received has been processed
|
||||
this.requestFrameUpdate();
|
||||
}
|
||||
}
|
||||
|
||||
async _handleFbUpdate() {
|
||||
this._socketBuffer.setOffset(2);
|
||||
this._rects = this._socketBuffer.readUInt16BE();
|
||||
this._log('Frame update received. Rects: ' + this._rects, true);
|
||||
await this._handleRect();
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle setColorMap msg
|
||||
* @returns {Promise<void>}
|
||||
* @private
|
||||
*/
|
||||
async _handleSetColorMap() {
|
||||
this._socketBuffer.setOffset(2);
|
||||
let firstColor = this._socketBuffer.readUInt16BE();
|
||||
const numColors = this._socketBuffer.readUInt16BE();
|
||||
|
||||
this._log(`ColorMap received. Colors: ${numColors}.`);
|
||||
|
||||
await this._socketBuffer.waitBytes(numColors * 6);
|
||||
|
||||
for (let x = 0; x < numColors; x++) {
|
||||
this._colorMap[firstColor] = {
|
||||
r: Math.floor((this._socketBuffer.readUInt16BE() / 65535) * 255),
|
||||
g: Math.floor((this._socketBuffer.readUInt16BE() / 65535) * 255),
|
||||
b: Math.floor((this._socketBuffer.readUInt16BE() / 65535) * 255),
|
||||
};
|
||||
firstColor++;
|
||||
}
|
||||
|
||||
this.emit('colorMapUpdated', this._colorMap);
|
||||
this._socketBuffer.flush();
|
||||
}
|
||||
|
||||
async _handleQemuAudio() {
|
||||
this._socketBuffer.setOffset(2);
|
||||
let operation = this._socketBuffer.readUInt16BE();
|
||||
if (operation == 2) {
|
||||
const length = this._socketBuffer.readUInt32BE();
|
||||
|
||||
//this._log(`Audio received. Length: ${length}.`);
|
||||
|
||||
await this._socketBuffer.waitBytes(length);
|
||||
|
||||
let audioBuffer = this._socketBuffer.readNBytes(length);
|
||||
|
||||
this._audioData = audioBuffer;
|
||||
}
|
||||
|
||||
this.emit('audioStream', this._audioData);
|
||||
this._socketBuffer.flush();
|
||||
}
|
||||
|
||||
/**
|
||||
* Reset the class state
|
||||
*/
|
||||
resetState() {
|
||||
if (this._connection) {
|
||||
this._connection?.end();
|
||||
}
|
||||
|
||||
if (this._timerPointer) {
|
||||
clearInterval(this._timerPointer);
|
||||
}
|
||||
|
||||
this._timerPointer = null;
|
||||
|
||||
//this._connection = null;
|
||||
|
||||
this._connected = false;
|
||||
this._authenticated = false;
|
||||
this._version = '';
|
||||
|
||||
this._password = '';
|
||||
|
||||
this._audioChannels = 2;
|
||||
this._audioFrequency = 22050;
|
||||
|
||||
this._handshaked = false;
|
||||
|
||||
this._expectingChallenge = false;
|
||||
this._challengeResponseSent = false;
|
||||
|
||||
this._frameBufferReady = false;
|
||||
this._firstFrameReceived = false;
|
||||
this._processingFrame = false;
|
||||
|
||||
this.clientWidth = 0;
|
||||
this.clientHeight = 0;
|
||||
this.clientName = '';
|
||||
|
||||
this.pixelFormat = {
|
||||
bitsPerPixel: 0,
|
||||
depth: 0,
|
||||
bigEndianFlag: 0,
|
||||
trueColorFlag: 0,
|
||||
redMax: 0,
|
||||
greenMax: 0,
|
||||
blueMax: 0,
|
||||
redShift: 0,
|
||||
blueShift: 0,
|
||||
greenShift: 0
|
||||
};
|
||||
|
||||
this._rects = 0;
|
||||
|
||||
this._colorMap = [];
|
||||
this.fb = Buffer.from([]);
|
||||
|
||||
this._socketBuffer?.flush(false);
|
||||
|
||||
this._cursor = {
|
||||
width: 0,
|
||||
height: 0,
|
||||
x: 0,
|
||||
y: 0,
|
||||
cursorPixels: null,
|
||||
bitmask: null,
|
||||
posX: 0,
|
||||
posY: 0
|
||||
};
|
||||
}
|
||||
|
||||
// NIT(lily) instead of allocating it'd be way better if these just re-used a 16/32 byte buffer used just for these.
|
||||
|
||||
/**
|
||||
* Send a key event
|
||||
* @param key - Key code (keysym) defined by X Window System, check https://wiki.linuxquestions.org/wiki/List_of_keysyms
|
||||
* @param down - True if the key is pressed, false if it is not
|
||||
*/
|
||||
sendKeyEvent(key: number, down: boolean = false) {
|
||||
const message = Buffer.alloc(8);
|
||||
message.writeUInt8(4); // Message type
|
||||
message.writeUInt8(down ? 1 : 0, 1); // Down flag
|
||||
message.writeUInt8(0, 2); // Padding
|
||||
message.writeUInt8(0, 3); // Padding
|
||||
|
||||
message.writeUInt32BE(key, 4); // Key code
|
||||
|
||||
this._connection?.write(message);
|
||||
}
|
||||
|
||||
/**
|
||||
* Send a raw pointer event
|
||||
* @param xPosition - X Position
|
||||
* @param yPosition - Y Position
|
||||
* @param mask - Raw RFB button mask
|
||||
*/
|
||||
sendPointerEvent(xPosition: number, yPosition: number, buttonMask: number) {
|
||||
const message = Buffer.alloc(6);
|
||||
message.writeUInt8(consts.clientMsgTypes.pointerEvent); // Message type
|
||||
message.writeUInt8(buttonMask, 1); // Button Mask
|
||||
const reladd = this._relativePointer ? 0x7fff : 0;
|
||||
message.writeUInt16BE(xPosition + reladd, 2); // X Position
|
||||
message.writeUInt16BE(yPosition + reladd, 4); // Y Position
|
||||
|
||||
this._cursor.posX = xPosition;
|
||||
this._cursor.posY = yPosition;
|
||||
|
||||
this._connection?.write(message);
|
||||
}
|
||||
|
||||
/**
|
||||
* Send client cut message to server
|
||||
* @param text - latin1 encoded
|
||||
*/
|
||||
clientCutText(text: string) {
|
||||
const textBuffer = Buffer.from(text, 'latin1');
|
||||
const message = Buffer.alloc(8 + textBuffer.length);
|
||||
message.writeUInt8(6); // Message type
|
||||
message.writeUInt8(0, 1); // Padding
|
||||
message.writeUInt8(0, 2); // Padding
|
||||
message.writeUInt8(0, 3); // Padding
|
||||
message.writeUInt32BE(textBuffer.length, 4); // Padding
|
||||
textBuffer.copy(message, 8);
|
||||
|
||||
this._connection?.write(message);
|
||||
}
|
||||
|
||||
sendAudio(enable: boolean) {
|
||||
const message = Buffer.alloc(4);
|
||||
message.writeUInt8(consts.clientMsgTypes.qemuAudio); // Message type
|
||||
message.writeUInt8(1, 1); // Submessage Type
|
||||
message.writeUInt16BE(enable ? 0 : 1, 2); // Operation
|
||||
this._connection?.write(message);
|
||||
}
|
||||
|
||||
sendAudioConfig(channels: number, frequency: number) {
|
||||
const message = Buffer.alloc(10);
|
||||
message.writeUInt8(consts.clientMsgTypes.qemuAudio); // Message type
|
||||
message.writeUInt8(1, 1); // Submessage Type
|
||||
message.writeUInt16BE(2, 2); // Operation
|
||||
message.writeUInt8(0 /*U8*/, 4); // Sample Format
|
||||
message.writeUInt8(channels, 5); // Number of Channels
|
||||
message.writeUInt32BE(frequency, 6); // Frequency
|
||||
this._connection?.write(message);
|
||||
}
|
||||
|
||||
/**
|
||||
* Print log info
|
||||
* @param text
|
||||
* @param debug
|
||||
* @private
|
||||
*/
|
||||
_log(text: string, debug = false) {
|
||||
if (!debug || (debug && this.debug)) {
|
||||
console.log(text);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,46 +0,0 @@
|
|||
// based on https://github.com/sidorares/node-rfb2
|
||||
|
||||
export const consts = {
|
||||
clientMsgTypes: {
|
||||
setPixelFormat: 0,
|
||||
setEncodings: 2,
|
||||
fbUpdate: 3,
|
||||
keyEvent: 4,
|
||||
pointerEvent: 5,
|
||||
cutText: 6,
|
||||
qemuAudio: 255
|
||||
},
|
||||
serverMsgTypes: {
|
||||
fbUpdate: 0,
|
||||
setColorMap: 1,
|
||||
bell: 2,
|
||||
cutText: 3,
|
||||
qemuAudio: 255
|
||||
},
|
||||
versionString: {
|
||||
V3_003: 'RFB 003.003\n',
|
||||
V3_007: 'RFB 003.007\n',
|
||||
V3_008: 'RFB 003.008\n'
|
||||
},
|
||||
encodings: {
|
||||
raw: 0,
|
||||
copyRect: 1,
|
||||
rre: 2,
|
||||
corre: 4,
|
||||
hextile: 5,
|
||||
zlib: 6,
|
||||
tight: 7,
|
||||
zlibhex: 8,
|
||||
trle: 15,
|
||||
zrle: 16,
|
||||
h264: 50,
|
||||
pseudoCursor: -239,
|
||||
pseudoDesktopSize: -223,
|
||||
pseudoQemuPointerMotionChange: -257,
|
||||
pseudoQemuAudio: -259
|
||||
},
|
||||
security: {
|
||||
None: 1,
|
||||
VNC: 2
|
||||
}
|
||||
};
|
||||
|
|
@ -1,31 +0,0 @@
|
|||
import { SocketBuffer } from "../socketbuffer";
|
||||
import { IRectDecoder } from "./decoder";
|
||||
import { getPixelBytePos } from "./util";
|
||||
|
||||
import { VncRectangle, Color3 } from "../types";
|
||||
|
||||
export class CopyRectDecoder implements IRectDecoder {
|
||||
async decode(rect: VncRectangle, fb: Buffer, bitsPerPixel: number, colorMap: Array<Color3>, screenW: number, screenH: number, socket: SocketBuffer, depth: number): Promise<void> {
|
||||
return new Promise(async (resolve, reject) => {
|
||||
await socket.waitBytes(4);
|
||||
rect.data = socket.readNBytesOffset(4);
|
||||
|
||||
const x = rect.data.readUInt16BE();
|
||||
const y = rect.data.readUInt16BE(2);
|
||||
|
||||
for (let h = 0; h < rect.height; h++) {
|
||||
for (let w = 0; w < rect.width; w++) {
|
||||
const fbOrigBytePosOffset = getPixelBytePos(x + w, y + h, screenW, screenH);
|
||||
const fbBytePosOffset = getPixelBytePos(rect.x + w, rect.y + h, screenW, screenH);
|
||||
|
||||
fb.writeUInt8(fb.readUInt8(fbOrigBytePosOffset), fbBytePosOffset);
|
||||
fb.writeUInt8(fb.readUInt8(fbOrigBytePosOffset + 1), fbBytePosOffset + 1);
|
||||
fb.writeUInt8(fb.readUInt8(fbOrigBytePosOffset + 2), fbBytePosOffset + 2);
|
||||
fb.writeUInt8(fb.readUInt8(fbOrigBytePosOffset + 3), fbBytePosOffset + 3);
|
||||
}
|
||||
}
|
||||
|
||||
resolve();
|
||||
});
|
||||
}
|
||||
}
|
||||
|
|
@ -1,7 +0,0 @@
|
|||
import { SocketBuffer } from "../socketbuffer";
|
||||
import { Color3, VncRectangle } from "../types";
|
||||
|
||||
|
||||
export interface IRectDecoder {
|
||||
decode(rect: VncRectangle, fb: Buffer, bitsPerPixel: number, colorMap: Array<Color3>, screenW: number, screenH: number, socket: SocketBuffer, depth: number): Promise<void>;
|
||||
}
|
||||
|
|
@ -1,228 +0,0 @@
|
|||
import { SocketBuffer } from "../socketbuffer";
|
||||
import { IRectDecoder } from "./decoder";
|
||||
import { applyColor, getPixelBytePos } from "./util";
|
||||
|
||||
import { VncRectangle, Color3 } from "../types";
|
||||
|
||||
export class HextileDecoder implements IRectDecoder {
|
||||
|
||||
async decode(rect: VncRectangle, fb: Buffer, bitsPerPixel: number, colorMap: Array<Color3>, screenW: number, screenH: number, socket: SocketBuffer, depth: number): Promise<void> {
|
||||
return new Promise(async (resolve, reject) => {
|
||||
const initialOffset = socket.offset;
|
||||
let dataSize = 0;
|
||||
|
||||
let lastSubEncoding = 0;
|
||||
|
||||
const backgroundColor = { r: 0, g: 0, b: 0, a: 255 };
|
||||
const foregroundColor = { r: 0, g: 0, b: 0, a: 255 };
|
||||
|
||||
let tilesX = Math.ceil(rect.width / 16);
|
||||
let tilesY = Math.ceil(rect.height / 16);
|
||||
let tiles = tilesX * tilesY;
|
||||
let totalTiles = tiles;
|
||||
|
||||
while (tiles) {
|
||||
await socket.waitBytes(1);
|
||||
const subEncoding = socket.readUInt8();
|
||||
dataSize++;
|
||||
const currTile = totalTiles - tiles;
|
||||
|
||||
// Calculate tile position and size
|
||||
const tileX = currTile % tilesX;
|
||||
const tileY = Math.floor(currTile / tilesX);
|
||||
const tx = rect.x + tileX * 16;
|
||||
const ty = rect.y + tileY * 16;
|
||||
const tw = Math.min(16, rect.x + rect.width - tx);
|
||||
const th = Math.min(16, rect.y + rect.height - ty);
|
||||
|
||||
if (subEncoding === 0) {
|
||||
if (lastSubEncoding & 0x01) {
|
||||
// We need to ignore zeroed tile after a raw tile
|
||||
} else {
|
||||
// If zeroed tile and last tile was not raw, use the last backgroundColor
|
||||
applyColor(tw, th, tx, ty, screenW, screenH, backgroundColor, fb);
|
||||
}
|
||||
} else if (subEncoding & 0x01) {
|
||||
// If Raw, ignore all other bits
|
||||
await socket.waitBytes(th * tw * (bitsPerPixel / 8));
|
||||
dataSize += th * tw * (bitsPerPixel / 8);
|
||||
for (let h = 0; h < th; h++) {
|
||||
for (let w = 0; w < tw; w++) {
|
||||
const fbBytePosOffset = getPixelBytePos(tx + w, ty + h, screenW, screenH);
|
||||
if (bitsPerPixel === 8) {
|
||||
const index = socket.readUInt8();
|
||||
const color = colorMap[index];
|
||||
// RGB
|
||||
// fb.writeUInt8(color?.r || 255, fbBytePosOffset);
|
||||
// fb.writeUInt8(color?.g || 255, fbBytePosOffset + 1);
|
||||
// fb.writeUInt8(color?.b || 255, fbBytePosOffset + 2);
|
||||
|
||||
// BGR
|
||||
fb.writeUInt8(color?.r || 255, fbBytePosOffset + 2);
|
||||
fb.writeUInt8(color?.g || 255, fbBytePosOffset + 1);
|
||||
fb.writeUInt8(color?.b || 255, fbBytePosOffset);
|
||||
} else if (bitsPerPixel === 24) {
|
||||
fb.writeUInt8(socket.readUInt8(), fbBytePosOffset);
|
||||
fb.writeUInt8(socket.readUInt8(), fbBytePosOffset + 1);
|
||||
fb.writeUInt8(socket.readUInt8(), fbBytePosOffset + 2);
|
||||
} else if (bitsPerPixel === 32) {
|
||||
// RGB
|
||||
// fb.writeUInt8(rect.data.readUInt8(bytePosOffset), fbBytePosOffset);
|
||||
// fb.writeUInt8(rect.data.readUInt8(bytePosOffset + 1), fbBytePosOffset + 1);
|
||||
// fb.writeUInt8(rect.data.readUInt8(bytePosOffset + 2), fbBytePosOffset + 2);
|
||||
|
||||
// BGR
|
||||
fb.writeUInt8(socket.readUInt8(), fbBytePosOffset + 2);
|
||||
fb.writeUInt8(socket.readUInt8(), fbBytePosOffset + 1);
|
||||
fb.writeUInt8(socket.readUInt8(), fbBytePosOffset);
|
||||
socket.readUInt8();
|
||||
}
|
||||
// Alpha, always 255
|
||||
fb.writeUInt8(255, fbBytePosOffset + 3);
|
||||
}
|
||||
}
|
||||
lastSubEncoding = subEncoding;
|
||||
} else {
|
||||
// Background bit
|
||||
if (subEncoding & 0x02) {
|
||||
switch (bitsPerPixel) {
|
||||
case 8:
|
||||
await socket.waitBytes(1);
|
||||
const index = socket.readUInt8();
|
||||
dataSize++;
|
||||
backgroundColor.r = colorMap[index].r || 255;
|
||||
backgroundColor.g = colorMap[index].g || 255;
|
||||
backgroundColor.b = colorMap[index].b || 255;
|
||||
break;
|
||||
|
||||
case 24:
|
||||
await socket.waitBytes(3);
|
||||
dataSize += 3;
|
||||
backgroundColor.r = socket.readUInt8();
|
||||
backgroundColor.g = socket.readUInt8();
|
||||
backgroundColor.b = socket.readUInt8();
|
||||
break;
|
||||
|
||||
case 32:
|
||||
await socket.waitBytes(4);
|
||||
dataSize += 4;
|
||||
backgroundColor.r = socket.readUInt8();
|
||||
backgroundColor.g = socket.readUInt8();
|
||||
backgroundColor.b = socket.readUInt8();
|
||||
backgroundColor.a = socket.readUInt8();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// Foreground bit
|
||||
if (subEncoding & 0x04) {
|
||||
switch (bitsPerPixel) {
|
||||
case 8:
|
||||
await socket.waitBytes(1);
|
||||
const index = socket.readUInt8();
|
||||
dataSize++;
|
||||
foregroundColor.r = colorMap[index].r || 255;
|
||||
foregroundColor.g = colorMap[index].g || 255;
|
||||
foregroundColor.b = colorMap[index].b || 255;
|
||||
break;
|
||||
|
||||
case 24:
|
||||
await socket.waitBytes(3);
|
||||
dataSize += 3;
|
||||
foregroundColor.r = socket.readUInt8();
|
||||
foregroundColor.g = socket.readUInt8();
|
||||
foregroundColor.b = socket.readUInt8();
|
||||
break;
|
||||
|
||||
case 32:
|
||||
await socket.waitBytes(4);
|
||||
dataSize += 4;
|
||||
foregroundColor.r = socket.readUInt8();
|
||||
foregroundColor.g = socket.readUInt8();
|
||||
foregroundColor.b = socket.readUInt8();
|
||||
foregroundColor.a = socket.readUInt8();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// Initialize tile with the background color
|
||||
applyColor(tw, th, tx, ty, screenW, screenH, backgroundColor, fb);
|
||||
|
||||
// AnySubrects bit
|
||||
if (subEncoding & 0x08) {
|
||||
await socket.waitBytes(1);
|
||||
let subRects = socket.readUInt8();
|
||||
|
||||
if (subRects) {
|
||||
while (subRects) {
|
||||
subRects--;
|
||||
const color = { r: 0, g: 0, b: 0, a: 255 };
|
||||
|
||||
// SubrectsColoured
|
||||
if (subEncoding & 0x10) {
|
||||
switch (bitsPerPixel) {
|
||||
case 8:
|
||||
await socket.waitBytes(1);
|
||||
const index = socket.readUInt8();
|
||||
dataSize++;
|
||||
color.r = colorMap[index].r || 255;
|
||||
color.g = colorMap[index].g || 255;
|
||||
color.b = colorMap[index].b || 255;
|
||||
break;
|
||||
|
||||
case 24:
|
||||
await socket.waitBytes(3);
|
||||
dataSize += 3;
|
||||
color.r = socket.readUInt8();
|
||||
color.g = socket.readUInt8();
|
||||
color.b = socket.readUInt8();
|
||||
break;
|
||||
|
||||
case 32:
|
||||
await socket.waitBytes(4);
|
||||
dataSize += 4;
|
||||
color.r = socket.readUInt8();
|
||||
color.g = socket.readUInt8();
|
||||
color.b = socket.readUInt8();
|
||||
color.a = socket.readUInt8();
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
color.r = foregroundColor.r;
|
||||
color.g = foregroundColor.g;
|
||||
color.b = foregroundColor.b;
|
||||
color.a = foregroundColor.a;
|
||||
}
|
||||
|
||||
await socket.waitBytes(2);
|
||||
const xy = socket.readUInt8();
|
||||
const wh = socket.readUInt8();
|
||||
dataSize += 2;
|
||||
|
||||
const sx = xy >> 4;
|
||||
const sy = xy & 0x0f;
|
||||
const sw = (wh >> 4) + 1;
|
||||
const sh = (wh & 0x0f) + 1;
|
||||
|
||||
applyColor(sw, sh, tx + sx, ty + sy, screenW, screenH, color, fb);
|
||||
}
|
||||
} else {
|
||||
applyColor(tw, th, tx, ty, screenW, screenH, backgroundColor, fb);
|
||||
}
|
||||
} else {
|
||||
applyColor(tw, th, tx, ty, screenW, screenH, backgroundColor, fb);
|
||||
}
|
||||
|
||||
lastSubEncoding = subEncoding;
|
||||
}
|
||||
|
||||
tiles--;
|
||||
}
|
||||
|
||||
rect.data = socket.readNBytes(dataSize, initialOffset);
|
||||
resolve();
|
||||
});
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
|
@ -1,57 +0,0 @@
|
|||
import { SocketBuffer } from "../socketbuffer";
|
||||
import { IRectDecoder } from "./decoder";
|
||||
import { getPixelBytePos } from "./util";
|
||||
|
||||
import { VncRectangle, Color3 } from "../types";
|
||||
|
||||
export class RawDecoder implements IRectDecoder {
|
||||
|
||||
async decode(rect: VncRectangle, fb: Buffer, bitsPerPixel: number, colorMap: Array<Color3>, screenW: number, screenH: number, socket: SocketBuffer, depth: number): Promise<void> {
|
||||
return new Promise(async (resolve, reject) => {
|
||||
await socket.waitBytes(rect.width * rect.height * (bitsPerPixel / 8));
|
||||
rect.data = socket.readNBytesOffset(rect.width * rect.height * (bitsPerPixel / 8));
|
||||
|
||||
for (let h = 0; h < rect.height; h++) {
|
||||
for (let w = 0; w < rect.width; w++) {
|
||||
const fbBytePosOffset = getPixelBytePos(rect.x + w, rect.y + h, screenW, screenH);
|
||||
if (bitsPerPixel === 8) {
|
||||
const bytePosOffset = h * rect.width + w;
|
||||
const index = rect.data.readUInt8(bytePosOffset);
|
||||
const color = colorMap[index];
|
||||
// RGB
|
||||
// fb.writeUInt8(color?.r || 255, fbBytePosOffset);
|
||||
// fb.writeUInt8(color?.g || 255, fbBytePosOffset + 1);
|
||||
// fb.writeUInt8(color?.b || 255, fbBytePosOffset + 2);
|
||||
|
||||
// BGR
|
||||
fb.writeUInt8(color?.r || 255, fbBytePosOffset + 2);
|
||||
fb.writeUInt8(color?.g || 255, fbBytePosOffset + 1);
|
||||
fb.writeUInt8(color?.b || 255, fbBytePosOffset);
|
||||
|
||||
fb.writeUInt8(255, fbBytePosOffset + 3);
|
||||
} else if (bitsPerPixel === 24) {
|
||||
const bytePosOffset = (h * rect.width + w) * 3;
|
||||
fb.writeUInt8(rect.data.readUInt8(bytePosOffset), fbBytePosOffset);
|
||||
fb.writeUInt8(rect.data.readUInt8(bytePosOffset + 1), fbBytePosOffset + 1);
|
||||
fb.writeUInt8(rect.data.readUInt8(bytePosOffset + 2), fbBytePosOffset + 2);
|
||||
fb.writeUInt8(255, fbBytePosOffset + 3);
|
||||
} else if (bitsPerPixel === 32) {
|
||||
const bytePosOffset = (h * rect.width + w) * 4;
|
||||
// RGB
|
||||
// fb.writeUInt8(rect.data.readUInt8(bytePosOffset), fbBytePosOffset);
|
||||
// fb.writeUInt8(rect.data.readUInt8(bytePosOffset + 1), fbBytePosOffset + 1);
|
||||
// fb.writeUInt8(rect.data.readUInt8(bytePosOffset + 2), fbBytePosOffset + 2);
|
||||
|
||||
// BGR
|
||||
fb.writeUInt8(rect.data.readUInt8(bytePosOffset), fbBytePosOffset + 2);
|
||||
fb.writeUInt8(rect.data.readUInt8(bytePosOffset + 1), fbBytePosOffset + 1);
|
||||
fb.writeUInt8(rect.data.readUInt8(bytePosOffset + 2), fbBytePosOffset);
|
||||
// fb.writeUInt8(rect.data.readUInt8(bytePosOffset + 3), fbBytePosOffset + 3);
|
||||
fb.writeUInt8(255, fbBytePosOffset + 3);
|
||||
}
|
||||
}
|
||||
}
|
||||
resolve();
|
||||
});
|
||||
}
|
||||
}
|
||||
|
|
@ -1,19 +0,0 @@
|
|||
|
||||
import { Color3 } from "../types";
|
||||
|
||||
export function getPixelBytePos(x: number, y: number, width: number, height: number, stride: number = 4): number {
|
||||
return (y * width + x) * stride;
|
||||
}
|
||||
|
||||
// Apply color to a rect on buffer
|
||||
export function applyColor(tw: number, th: number, tx: number, ty: number, screenW: number, screenH: number, color: Color3, fb: Buffer) {
|
||||
for (let h = 0; h < th; h++) {
|
||||
for (let w = 0; w < tw; w++) {
|
||||
const fbBytePosOffset = getPixelBytePos(tx + w, ty + h, screenW, screenH);
|
||||
fb.writeUInt8(color.r || 255, fbBytePosOffset + 2);
|
||||
fb.writeUInt8(color.g || 255, fbBytePosOffset + 1);
|
||||
fb.writeUInt8(color.b || 255, fbBytePosOffset);
|
||||
fb.writeUInt8(255, fbBytePosOffset + 3);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -1,340 +0,0 @@
|
|||
import * as zlib from 'node:zlib';
|
||||
import { SocketBuffer } from "../socketbuffer";
|
||||
import { IRectDecoder } from "./decoder";
|
||||
import { applyColor, getPixelBytePos } from "./util";
|
||||
|
||||
import { VncRectangle, Color3, Color4 } from "../types";
|
||||
|
||||
export class ZrleDecoder implements IRectDecoder {
|
||||
private zlib: zlib.Inflate;
|
||||
private unBuffer: SocketBuffer;
|
||||
|
||||
constructor() {
|
||||
this.zlib = zlib.createInflate({ chunkSize: 16 * 1024 * 1024, flush: zlib.constants.Z_FULL_FLUSH });
|
||||
this.unBuffer = new SocketBuffer();
|
||||
|
||||
this.zlib.on('data', async (chunk) => {
|
||||
this.unBuffer.pushData(chunk);
|
||||
});
|
||||
}
|
||||
|
||||
async decode(rect: VncRectangle, fb: Buffer, bitsPerPixel: number, colorMap: Array<Color3>, screenW: number, screenH: number, socket: SocketBuffer, depth: number): Promise<void> {
|
||||
return new Promise(async (resolve, reject) => {
|
||||
await socket.waitBytes(4);
|
||||
|
||||
const initialOffset = socket.offset;
|
||||
const dataSize = socket.readUInt32BE();
|
||||
|
||||
await socket.waitBytes(dataSize);
|
||||
|
||||
const compressedData = socket.readNBytesOffset(dataSize);
|
||||
|
||||
rect.data = socket.readNBytes(dataSize + 4, initialOffset);
|
||||
|
||||
this.unBuffer.flush();
|
||||
this.zlib.write(compressedData, async () => {
|
||||
this.zlib.flush();
|
||||
|
||||
let tilesX = Math.ceil(rect.width / 64);
|
||||
let tilesY = Math.ceil(rect.height / 64);
|
||||
let tiles = tilesX * tilesY;
|
||||
let totalTiles = tiles;
|
||||
|
||||
while (tiles) {
|
||||
await this.unBuffer.waitBytes(1, 'tile begin.');
|
||||
const subEncoding = this.unBuffer.readUInt8();
|
||||
const currTile = totalTiles - tiles;
|
||||
|
||||
const tileX = currTile % tilesX;
|
||||
const tileY = Math.floor(currTile / tilesX);
|
||||
const tx = rect.x + tileX * 64;
|
||||
const ty = rect.y + tileY * 64;
|
||||
const tw = Math.min(64, rect.x + rect.width - tx);
|
||||
const th = Math.min(64, rect.y + rect.height - ty);
|
||||
|
||||
const now = process.hrtime.bigint();
|
||||
let totalRun = 0;
|
||||
let runs = 0;
|
||||
|
||||
if (subEncoding === 127 || subEncoding === 129) {
|
||||
console.log('Invalid subencoding. ' + subEncoding);
|
||||
} else if (subEncoding === 0) {
|
||||
// Raw
|
||||
for (let h = 0; h < th; h++) {
|
||||
for (let w = 0; w < tw; w++) {
|
||||
const fbBytePosOffset = getPixelBytePos(tx + w, ty + h, screenW, screenH);
|
||||
if (bitsPerPixel === 8) {
|
||||
await this.unBuffer.waitBytes(1, 'raw 8bits');
|
||||
const index = this.unBuffer.readUInt8();
|
||||
const color = colorMap[index];
|
||||
// RGB
|
||||
// fb.writeUInt8(color?.r || 255, fbBytePosOffset);
|
||||
// fb.writeUInt8(color?.g || 255, fbBytePosOffset + 1);
|
||||
// fb.writeUInt8(color?.b || 255, fbBytePosOffset + 2);
|
||||
|
||||
// BGR
|
||||
fb.writeUInt8(color?.r || 255, fbBytePosOffset + 2);
|
||||
fb.writeUInt8(color?.g || 255, fbBytePosOffset + 1);
|
||||
fb.writeUInt8(color?.b || 255, fbBytePosOffset);
|
||||
} else if (bitsPerPixel === 24 || (bitsPerPixel === 32 && depth === 24)) {
|
||||
await this.unBuffer.waitBytes(3, 'raw 24bits');
|
||||
fb.writeUInt8(this.unBuffer.readUInt8(), fbBytePosOffset + 2);
|
||||
fb.writeUInt8(this.unBuffer.readUInt8(), fbBytePosOffset + 1);
|
||||
fb.writeUInt8(this.unBuffer.readUInt8(), fbBytePosOffset);
|
||||
} else if (bitsPerPixel === 32) {
|
||||
// RGB
|
||||
// fb.writeUInt8(rect.data.readUInt8(bytePosOffset), fbBytePosOffset);
|
||||
// fb.writeUInt8(rect.data.readUInt8(bytePosOffset + 1), fbBytePosOffset + 1);
|
||||
// fb.writeUInt8(rect.data.readUInt8(bytePosOffset + 2), fbBytePosOffset + 2);
|
||||
|
||||
// BGR
|
||||
await this.unBuffer.waitBytes(4, 'raw 32bits');
|
||||
fb.writeUInt8(this.unBuffer.readUInt8(), fbBytePosOffset + 2);
|
||||
fb.writeUInt8(this.unBuffer.readUInt8(), fbBytePosOffset + 1);
|
||||
fb.writeUInt8(this.unBuffer.readUInt8(), fbBytePosOffset);
|
||||
this.unBuffer.readUInt8();
|
||||
}
|
||||
// Alpha
|
||||
fb.writeUInt8(255, fbBytePosOffset + 3);
|
||||
}
|
||||
}
|
||||
} else if (subEncoding === 1) {
|
||||
// Single Color
|
||||
let color: Color4 = { r: 0, g: 0, b: 0, a: 255 };
|
||||
if (bitsPerPixel === 8) {
|
||||
await this.unBuffer.waitBytes(1, 'single color 8bits');
|
||||
const index = this.unBuffer.readUInt8();
|
||||
color = (colorMap[index] as Color4);
|
||||
} else if (bitsPerPixel === 24 || (bitsPerPixel === 32 && depth === 24)) {
|
||||
await this.unBuffer.waitBytes(3, 'single color 24bits');
|
||||
color.r = this.unBuffer.readUInt8();
|
||||
color.g = this.unBuffer.readUInt8();
|
||||
color.b = this.unBuffer.readUInt8();
|
||||
} else if (bitsPerPixel === 32) {
|
||||
await this.unBuffer.waitBytes(4, 'single color 32bits');
|
||||
color.r = this.unBuffer.readUInt8();
|
||||
color.g = this.unBuffer.readUInt8();
|
||||
color.b = this.unBuffer.readUInt8();
|
||||
color.a = this.unBuffer.readUInt8();
|
||||
}
|
||||
applyColor(tw, th, tx, ty, screenW, screenH, color, fb);
|
||||
} else if (subEncoding >= 2 && subEncoding <= 16) {
|
||||
// Palette
|
||||
const palette = [];
|
||||
for (let x = 0; x < subEncoding; x++) {
|
||||
let color;
|
||||
if (bitsPerPixel === 24 || (bitsPerPixel === 32 && depth === 24)) {
|
||||
await this.unBuffer.waitBytes(3, 'palette 24 bits');
|
||||
color = {
|
||||
r: this.unBuffer.readUInt8(),
|
||||
g: this.unBuffer.readUInt8(),
|
||||
b: this.unBuffer.readUInt8(),
|
||||
a: 255
|
||||
};
|
||||
} else if (bitsPerPixel === 32) {
|
||||
await this.unBuffer.waitBytes(3, 'palette 32 bits');
|
||||
color = {
|
||||
r: this.unBuffer.readUInt8(),
|
||||
g: this.unBuffer.readUInt8(),
|
||||
b: this.unBuffer.readUInt8(),
|
||||
a: this.unBuffer.readUInt8()
|
||||
};
|
||||
}
|
||||
palette.push(color);
|
||||
}
|
||||
|
||||
const bitsPerIndex = subEncoding === 2 ? 1 : subEncoding < 5 ? 2 : 4;
|
||||
// const i = (tw * th) / (8 / bitsPerIndex);
|
||||
// const pixels = [];
|
||||
|
||||
let byte = 0;
|
||||
let bitPos = 0;
|
||||
|
||||
for (let h = 0; h < th; h++) {
|
||||
for (let w = 0; w < tw; w++) {
|
||||
if (bitPos === 0 || w === 0) {
|
||||
await this.unBuffer.waitBytes(1, 'palette index data');
|
||||
byte = this.unBuffer.readUInt8();
|
||||
bitPos = 0;
|
||||
}
|
||||
let color : Color4 = { r: 0, g: 0, b: 0, a: 255 };
|
||||
switch (bitsPerIndex) {
|
||||
case 1:
|
||||
if (bitPos === 0) {
|
||||
color = palette[(byte & 128) >> 7] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
} else if (bitPos === 1) {
|
||||
color = palette[(byte & 64) >> 6] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
} else if (bitPos === 2) {
|
||||
color = palette[(byte & 32) >> 5] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
} else if (bitPos === 3) {
|
||||
color = palette[(byte & 16) >> 4] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
} else if (bitPos === 4) {
|
||||
color = palette[(byte & 8) >> 3] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
} else if (bitPos === 5) {
|
||||
color = palette[(byte & 4) >> 2] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
} else if (bitPos === 6) {
|
||||
color = palette[(byte & 2) >> 1] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
} else if (bitPos === 7) {
|
||||
color = palette[byte & 1] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
}
|
||||
bitPos++;
|
||||
if (bitPos === 8) {
|
||||
bitPos = 0;
|
||||
}
|
||||
break;
|
||||
|
||||
case 2:
|
||||
if (bitPos === 0) {
|
||||
color = palette[(byte & 196) >> 6] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
} else if (bitPos === 1) {
|
||||
color = palette[(byte & 48) >> 4] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
} else if (bitPos === 2) {
|
||||
color = palette[(byte & 12) >> 2] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
} else if (bitPos === 3) {
|
||||
color = palette[byte & 3] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
}
|
||||
bitPos++;
|
||||
if (bitPos === 4) {
|
||||
bitPos = 0;
|
||||
}
|
||||
break;
|
||||
|
||||
case 4:
|
||||
if (bitPos === 0) {
|
||||
color = palette[(byte & 240) >> 4] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
} else if (bitPos === 1) {
|
||||
color = palette[byte & 15] || { r: 255, g: 255, b: 255, a: 255 };
|
||||
}
|
||||
bitPos++;
|
||||
if (bitPos === 2) {
|
||||
bitPos = 0;
|
||||
}
|
||||
break;
|
||||
}
|
||||
const fbBytePosOffset = getPixelBytePos(tx + w, ty + h, screenW, screenH);
|
||||
fb.writeUInt8(color.b ?? 0, fbBytePosOffset);
|
||||
fb.writeUInt8(color.g ?? 0, fbBytePosOffset + 1);
|
||||
fb.writeUInt8(color.r ?? 0, fbBytePosOffset + 2);
|
||||
fb.writeUInt8(color.a ?? 255, fbBytePosOffset + 3);
|
||||
}
|
||||
}
|
||||
} else if (subEncoding === 128) {
|
||||
// Plain RLE
|
||||
let runLength = 0;
|
||||
let color = { r: 0, g: 0, b: 0, a: 0 };
|
||||
|
||||
for (let h = 0; h < th; h++) {
|
||||
for (let w = 0; w < tw; w++) {
|
||||
if (!runLength) {
|
||||
if (bitsPerPixel === 24 || (bitsPerPixel === 32 && depth === 24)) {
|
||||
await this.unBuffer.waitBytes(3, 'rle 24bits');
|
||||
color = {
|
||||
r: this.unBuffer.readUInt8(),
|
||||
g: this.unBuffer.readUInt8(),
|
||||
b: this.unBuffer.readUInt8(),
|
||||
a: 255
|
||||
};
|
||||
} else if (bitsPerPixel === 32) {
|
||||
await this.unBuffer.waitBytes(4, 'rle 32bits');
|
||||
color = {
|
||||
r: this.unBuffer.readUInt8(),
|
||||
g: this.unBuffer.readUInt8(),
|
||||
b: this.unBuffer.readUInt8(),
|
||||
a: this.unBuffer.readUInt8()
|
||||
};
|
||||
}
|
||||
await this.unBuffer.waitBytes(1, 'rle runsize');
|
||||
let runSize = this.unBuffer.readUInt8();
|
||||
while (runSize === 255) {
|
||||
runLength += runSize;
|
||||
await this.unBuffer.waitBytes(1, 'rle runsize');
|
||||
runSize = this.unBuffer.readUInt8();
|
||||
}
|
||||
runLength += runSize + 1;
|
||||
totalRun += runLength;
|
||||
runs++;
|
||||
}
|
||||
const fbBytePosOffset = getPixelBytePos(tx + w, ty + h, screenW, screenH);
|
||||
fb.writeUInt8(color.b ?? 0, fbBytePosOffset);
|
||||
fb.writeUInt8(color.g ?? 0, fbBytePosOffset + 1);
|
||||
fb.writeUInt8(color.r ?? 0, fbBytePosOffset + 2);
|
||||
fb.writeUInt8(color.a ?? 255, fbBytePosOffset + 3);
|
||||
runLength--;
|
||||
}
|
||||
}
|
||||
} else if (subEncoding >= 130) {
|
||||
// Palette RLE
|
||||
const paletteSize = subEncoding - 128;
|
||||
const palette = [];
|
||||
|
||||
for (let x = 0; x < paletteSize; x++) {
|
||||
let color;
|
||||
if (bitsPerPixel === 24 || (bitsPerPixel === 32 && depth === 24)) {
|
||||
await this.unBuffer.waitBytes(3, 'paletterle 24bits');
|
||||
color = {
|
||||
r: this.unBuffer.readUInt8(),
|
||||
g: this.unBuffer.readUInt8(),
|
||||
b: this.unBuffer.readUInt8(),
|
||||
a: 255
|
||||
};
|
||||
} else if (bitsPerPixel === 32) {
|
||||
await this.unBuffer.waitBytes(4, 'paletterle 32bits');
|
||||
color = {
|
||||
r: this.unBuffer.readUInt8(),
|
||||
g: this.unBuffer.readUInt8(),
|
||||
b: this.unBuffer.readUInt8(),
|
||||
a: this.unBuffer.readUInt8()
|
||||
};
|
||||
}
|
||||
palette.push(color);
|
||||
}
|
||||
|
||||
let runLength = 0;
|
||||
let color = { r: 0, g: 0, b: 0, a: 255 };
|
||||
|
||||
for (let h = 0; h < th; h++) {
|
||||
for (let w = 0; w < tw; w++) {
|
||||
if (!runLength) {
|
||||
await this.unBuffer.waitBytes(1, 'paletterle indexdata');
|
||||
const colorIndex = this.unBuffer.readUInt8();
|
||||
|
||||
if (!(colorIndex & 128)) {
|
||||
// Run de tamanho 1
|
||||
color = palette[colorIndex] ?? { r: 0, g: 0, b: 0, a: 255 };
|
||||
runLength = 1;
|
||||
} else {
|
||||
color = palette[colorIndex - 128] ?? { r: 0, g: 0, b: 0, a: 255 };
|
||||
await this.unBuffer.waitBytes(1, 'paletterle runlength');
|
||||
let runSize = this.unBuffer.readUInt8();
|
||||
while (runSize === 255) {
|
||||
runLength += runSize;
|
||||
await this.unBuffer.waitBytes(1, 'paletterle runlength');
|
||||
runSize = this.unBuffer.readUInt8();
|
||||
}
|
||||
runLength += runSize + 1;
|
||||
}
|
||||
totalRun += runLength;
|
||||
runs++;
|
||||
}
|
||||
const fbBytePosOffset = getPixelBytePos(tx + w, ty + h, screenW, screenH);
|
||||
fb.writeUInt8(color.b ?? 0, fbBytePosOffset);
|
||||
fb.writeUInt8(color.g ?? 0, fbBytePosOffset + 1);
|
||||
fb.writeUInt8(color.r ?? 0, fbBytePosOffset + 2);
|
||||
fb.writeUInt8(color.a ?? 255, fbBytePosOffset + 3);
|
||||
runLength--;
|
||||
}
|
||||
}
|
||||
}
|
||||
// 127 and 129 are not valid
|
||||
// 17 to 126 are not used
|
||||
|
||||
tiles--;
|
||||
}
|
||||
|
||||
this.unBuffer.flush();
|
||||
resolve();
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -1,134 +0,0 @@
|
|||
/// this is a pretty poor name.
|
||||
export class SocketBuffer {
|
||||
public buffer: Buffer;
|
||||
public offset: number; // :(
|
||||
|
||||
constructor() {
|
||||
this.buffer = Buffer.from([]);
|
||||
this.offset = 0;
|
||||
this.flush();
|
||||
}
|
||||
|
||||
flush(keep = true) {
|
||||
if (keep && this.buffer?.length) {
|
||||
this.buffer = this.buffer.subarray(this.offset);
|
||||
this.offset = 0;
|
||||
} else {
|
||||
this.buffer = Buffer.from([]);
|
||||
this.offset = 0;
|
||||
}
|
||||
}
|
||||
|
||||
toString() {
|
||||
return this.buffer.toString();
|
||||
}
|
||||
|
||||
includes(check: Buffer|number|string) {
|
||||
return this.buffer.includes(check);
|
||||
}
|
||||
|
||||
pushData(data: Buffer) {
|
||||
this.buffer = Buffer.concat([this.buffer, data]);
|
||||
}
|
||||
|
||||
readInt32BE() {
|
||||
const data = this.buffer.readInt32BE(this.offset);
|
||||
this.offset += 4;
|
||||
return data;
|
||||
}
|
||||
|
||||
readInt32LE() {
|
||||
const data = this.buffer.readInt32LE(this.offset);
|
||||
this.offset += 4;
|
||||
return data;
|
||||
}
|
||||
|
||||
readUInt32BE() {
|
||||
const data = this.buffer.readUInt32BE(this.offset);
|
||||
this.offset += 4;
|
||||
return data;
|
||||
}
|
||||
|
||||
readUInt32LE() {
|
||||
const data = this.buffer.readUInt32LE(this.offset);
|
||||
this.offset += 4;
|
||||
return data;
|
||||
}
|
||||
|
||||
readUInt16BE() {
|
||||
const data = this.buffer.readUInt16BE(this.offset);
|
||||
this.offset += 2;
|
||||
return data;
|
||||
}
|
||||
|
||||
readUInt16LE() {
|
||||
const data = this.buffer.readUInt16LE(this.offset);
|
||||
this.offset += 2;
|
||||
return data;
|
||||
}
|
||||
|
||||
readUInt8() {
|
||||
const data = this.buffer.readUInt8(this.offset);
|
||||
this.offset += 1;
|
||||
return data;
|
||||
}
|
||||
|
||||
readInt8() {
|
||||
const data = this.buffer.readInt8(this.offset);
|
||||
this.offset += 1;
|
||||
return data;
|
||||
}
|
||||
|
||||
readNBytes(bytes: number, offset = this.offset) {
|
||||
return this.buffer.slice(offset, offset + bytes);
|
||||
}
|
||||
|
||||
readNBytesOffset(bytes: number) {
|
||||
const data = this.buffer.slice(this.offset, this.offset + bytes);
|
||||
this.offset += bytes;
|
||||
return data;
|
||||
}
|
||||
|
||||
setOffset(n: number) {
|
||||
this.offset = n;
|
||||
}
|
||||
|
||||
bytesLeft() {
|
||||
return this.buffer.length - this.offset;
|
||||
}
|
||||
|
||||
// name is nullable because there are Many(yay....) times it just isn't passed
|
||||
async waitBytes(bytes: number, name: any | null = null): Promise<void> {
|
||||
if (this.bytesLeft() >= bytes) {
|
||||
return;
|
||||
}
|
||||
let counter = 0;
|
||||
return new Promise(async (resolve, reject) => {
|
||||
while (this.bytesLeft() < bytes) {
|
||||
counter++;
|
||||
// console.log('Esperando. BytesLeft: ' + this.bytesLeft() + ' Desejados: ' + bytes);
|
||||
await this.sleep(4);
|
||||
if (counter === 50) {
|
||||
console.log('Stucked on ' + name + ' - Buffer Size: ' + this.buffer.length + ' BytesLeft: ' + this.bytesLeft() + ' BytesNeeded: ' + bytes);
|
||||
}
|
||||
}
|
||||
resolve();
|
||||
});
|
||||
}
|
||||
|
||||
fill(data: Buffer) {
|
||||
this.buffer.fill(data, this.offset, this.offset + data.length);
|
||||
this.offset += data.length;
|
||||
}
|
||||
|
||||
fillMultiple(data: Buffer, repeats: number) {
|
||||
this.buffer.fill(data, this.offset, this.offset + data.length * repeats);
|
||||
this.offset += data.length * repeats;
|
||||
}
|
||||
|
||||
sleep(n: number): Promise<void> {
|
||||
return new Promise((resolve, reject) => {
|
||||
setTimeout(resolve, n);
|
||||
});
|
||||
}
|
||||
}
|
||||
|
|
@ -1,44 +0,0 @@
|
|||
export type Rect = {
|
||||
x: number,
|
||||
y: number,
|
||||
width: number,
|
||||
height: number,
|
||||
}
|
||||
|
||||
export type VncRectangle = Rect & {
|
||||
encoding: number,
|
||||
data: Buffer | null // ?
|
||||
};
|
||||
|
||||
|
||||
export type PixelFormat = {
|
||||
bitsPerPixel: number,
|
||||
depth: number,
|
||||
bigEndianFlag: number,
|
||||
trueColorFlag: number,
|
||||
redMax: number,
|
||||
greenMax: number,
|
||||
blueMax: number,
|
||||
redShift: number,
|
||||
blueShift: number,
|
||||
greenShift: number
|
||||
}
|
||||
|
||||
export type Cursor = Rect & {
|
||||
cursorPixels: Buffer|null,
|
||||
bitmask: Buffer|null,
|
||||
|
||||
posX: number,
|
||||
posY: number
|
||||
}
|
||||
|
||||
export type Color3 = {
|
||||
r: number,
|
||||
g: number,
|
||||
b: number
|
||||
}
|
||||
|
||||
export type Color4 = Color3 & {
|
||||
a: number,
|
||||
};
|
||||
|
||||
|
|
@ -1 +0,0 @@
|
|||
../tsconfig.json
|
||||
|
|
@ -1,7 +1,6 @@
|
|||
{
|
||||
"name": "@socketcomputer/shared",
|
||||
"version": "1.0.0",
|
||||
"private": "true",
|
||||
"description": "crusttest shared bits",
|
||||
"type": "module",
|
||||
"main": "dist/index.js",
|
||||
|
|
@ -9,21 +8,16 @@
|
|||
"files": [
|
||||
"dist"
|
||||
],
|
||||
|
||||
"targets": {
|
||||
"types": {},
|
||||
"shared":{
|
||||
"context": "browser",
|
||||
"isLibrary": true,
|
||||
"outputFormat": "esmodule"
|
||||
}
|
||||
"types": {},
|
||||
"shared": {
|
||||
"context": "browser",
|
||||
"isLibrary": true,
|
||||
"outputFormat": "esmodule"
|
||||
}
|
||||
},
|
||||
|
||||
"dependencies": {
|
||||
},
|
||||
|
||||
"devDependencies": {
|
||||
"parcel": "^2.12.0"
|
||||
"parcel": "^2.12.0"
|
||||
},
|
||||
"scripts": {
|
||||
"build": "parcel build src/index.ts --target shared --target types"
|
||||
|
|
|
|||
|
|
@ -1,7 +1,6 @@
|
|||
{
|
||||
"name": "@socketcomputer/webapp",
|
||||
"version": "1.0.0",
|
||||
"private": "true",
|
||||
"description": "",
|
||||
"scripts": {
|
||||
"serve": "parcel src/index.html",
|
||||
|
|
@ -11,7 +10,5 @@
|
|||
"license": "ISC",
|
||||
"devDependencies": {
|
||||
"parcel": "^2.12.0"
|
||||
},
|
||||
"dependencies": {
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue