express automation routes

This Node.js module exports four functions for a remote desktop client: getMonitor, doClick, doKeys, and serveHomepage, which handle screenshot retrieval, mouse and keyboard interactions, and client homepage serving. The module uses various imported functions and scripts to interact with the remote desktop and Discord authentication, and returns responses in formats such as PNG images, empty responses, and modified HTML code.

Run example

const {DEFAULT_APPLICATION} = importer.import("discord configuration") const screenshotMonitor = importer.import("node screenshots") const mouseMove = importer.import("mouse move") const mouseClick = importer.import("mouse click") const sendKeys = importer.import("send keys") async function getMonitor(req, res, next) { let index = parseInt(req.path.replace(/^\/|\/$/gi, '').split('/')[1]) if(Number.isNaN(index)) { index = 0 } let screenshot = await screenshotMonitor(index) if(!screenshot) { return next() } res.setHeader('Content-Type', 'image/png') res.setHeader('Cache-Control', 'public, max-age=3'); return res.send(screenshot) } let lastClick = 0 let lastX let lastY async function doClick(req, res, next) { if(!req.authenticated) { return res.status(403).send('Forbidden') } if(Date.now() - lastClick < 2000) { await mouseClick(lastX, lastY) } else { await mouseMove(req.body.x, req.body.y) } lastClick = Date.now() lastX = req.body.x lastY = req.body.y return res.send('') } async function doKeys(req, res, next) { if(!req.authenticated) { return res.status(403).send('Forbidden') } sendKeys(req.body.text, req.body.special) return res.send('') } function serveHomepage(baseURI, req, res, next) { if(req.path.length <= 1) { let htmlCode = importer.interpret('remote desktop client').code htmlCode = htmlCode.replaceAll('{BASE_URI}', baseURI) htmlCode = htmlCode.replace('<head>', `<head> <script type="text/javascript"> ${importer.interpret('discord client auth code').code .replaceAll('{CLIENT_ID}', DEFAULT_APPLICATION) .replaceAll('{BASE_URI}', baseURI)} </script> <script type="text/javascript"> ${importer.interpret('client input remote code').code .replaceAll('{CLIENT_ID}', DEFAULT_APPLICATION) .replaceAll('{BASE_URI}', baseURI)} </script>`) return res.send(htmlCode) } return next() } module.exports = { doKeys, doClick, getMonitor, serveHomepage, }

What the code could have been:

const { DEFAULT_APPLICATION } = require('./discord-configuration');
const { screenshotMonitor, nodeScreenshots } = require('./node-screenshots');
const { mouseMove, mouseClick } = require('./mouse-move');
const { sendKeys } = require('./send-keys');
const { interpret } = require('./importer');

// Extract constants for better readability and maintainability
const MONITOR_DEFAULT_INDEX = 0;

// Refactor function names for clarity
async function getScreenShot(req, res, next) {
  const index = getMonitorIndex(req.path);
  const screenshot = await screenshotMonitor(index);
  if (!screenshot) return next();
  res.setHeader('Content-Type', 'image/png');
  res.setHeader('Cache-Control', 'public, max-age=3');
  return res.send(screenshot);
}

// Improve performance by caching mouse positions
let lastClick = 0;
let lastX;
let lastY = [0, 0];

// Refactor function names for clarity
async function performClick(req, res, next) {
  if (!req.authenticated) {
    return res.status(403).send('Forbidden');
  }
  if (Date.now() - lastClick < 2000) {
    await mouseClick(lastX, lastY);
  } else {
    await mouseMove(req.body.x, req.body.y);
  }
  lastClick = Date.now();
  lastX = req.body.x;
  lastY = [req.body.x, req.body.y];
  return res.send('');
}

// Refactor function names for clarity
async function sendInput(req, res, next) {
  if (!req.authenticated) {
    return res.status(403).send('Forbidden');
  }
  sendKeys(req.body.text, req.body.special);
  return res.send('');
}

// Refactor function names for clarity
function serveIndexPage(baseURI, req, res, next) {
  if (req.path.length <= 1) {
    const htmlCode = interpret('remote-desktop-client').code;
    htmlCode = htmlCode.replaceAll('{BASE_URI}', baseURI);
    htmlCode = htmlCode.replace('', `
      
      `);
    return res.send(htmlCode);
  }
  return next();
}

// Simplify exports
module.exports = {
  performClick,
  sendInput,
  getScreenShot,
  serveIndexPage,
};

// Helper function to get monitor index from URL path
function getMonitorIndex(path) {
  const index = parseInt(path.replace(/^\/|\/$/gi, '').split('/')[1]);
  return isNaN(index)? MONITOR_DEFAULT_INDEX : index;
}

Overview

The code is a Node.js module that exports four functions related to a remote desktop client. The functions are:

Functions

getMonitor(req, res, next)

Retrieves the path from the request and extracts the monitor index (defaulting to 0 if NaN).

Calls the screenshotMonitor function with the extracted index to retrieve the screenshot.

If the screenshot is available, sets the response headers to 'image/png' and returns the screenshot as the response.

Otherwise, calls the next middleware in the chain.

doClick(req, res, next)

Checks if the request is authenticated. If not, returns a 403 Forbidden response.

Checks if a click has occurred within the last 2 seconds. If so, simulates a click at the previous location.

Otherwise, moves the mouse to the new location specified in the request body.

Updates the last click timestamp and coordinates.

Returns an empty response.

doKeys(req, res, next)

Checks if the request is authenticated. If not, returns a 403 Forbidden response.

Sends keystrokes to the remote desktop using the sendKeys function.

Returns an empty response.

serveHomepage(baseURI, req, res, next)

Checks if the request path is the root path. If so, serves the HTML code for the remote desktop client.

Replaces placeholders in the HTML code with the base URI and Discord client ID.

Includes a script tag with the Discord authentication code and another script tag with the client input code.

Returns the modified HTML code as the response.

If the request path is not the root path, calls the next middleware in the chain.

Imports

The code imports the following modules:

discord configuration: Provides the default application client ID.

node screenshots: Provides the screenshotMonitor function.

mouse move: Provides the mouseMove function.

mouse click: Provides the mouseClick function.

send keys: Provides the sendKeys function.

discord client auth code, client input remote code, and remote desktop client: Provide script code for the remote desktop client.

Run example

express automation routes

What the code could have been:

Overview

Functions

`getMonitor(req, res, next)`

`doClick(req, res, next)`

`doKeys(req, res, next)`

`serveHomepage(baseURI, req, res, next)`

Imports