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app.js
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app.js
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const express = require('express'),
app = express(),
http = require("http"),
bodyParser = require('body-parser'),
socketIO = require("socket.io"),
serialport = require("serialport"),
Readline = require("parser-readline"),
rp = require("request-promise"),
$ = require("cheerio"),
fs = require("fs"),
puppeteer = require("puppeteer"),
extract = require("extract-zip"),
path = require("path"),
shell = require("shelljs"),
Nightmare = require('nightmare'),
LineByLineReader = require('line-by-line');
const nightmare = Nightmare({ show: true });
var portName = "/dev/cu.usbmodem14201";
var modelDatabaseURL = "https://free3d.com/3d-models/";
var modelPrintURL = "https://static.free3d.com/models/123d/printable_catalog/";
const modelDownloadFolder = "/Users/Russell/Downloads/";
var zipName = '';
var dataGotten = true;
var myPort = new serialport(portName,{
baudRate: 250000,
parser: new serialport.parsers.Readline("\r\n")
});
const parser = myPort.pipe(new Readline({ delimiter: "\n"}));
const server = http.createServer(app);
const io = socketIO(server);
const port = process.env.PORT || 5000;
var portStatus = "";
var timeElapsed = "";
var hotendTemperature = "";
var currentPosition = {
X: "",
Y: "",
Z: ""
};
var modelLinks = [];
var modelNames = [];
var modelThumbnails = [];
var scalingFactor = 1;
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
myPort.on("open", onOpen);
parser.on("data", onData);
myPort.on('close', onClose);
function onOpen() {
console.log("Opened serial port");
portStatus = "Online";
}
function onClose(error) {
portStatus = "Offline";
console.log("Closed serial port");
}
function onData(data) {
dataGotten = true;
var dataString = data.toString();
dataString = dataString.replace(/\s/g, "");
console.log("start data:" + dataString + "close\n");
if (dataString.indexOf("Printtime:") >= 0) { //Print time
timeElapsed = dataString.substring(dataString.indexOf("Printtime:") + 10, dataString.length);
}
else if (dataString.indexOf("T:") >= 0) { //Hotend temperature
hotendTemperature = dataString.substring(dataString.indexOf("T:") + 2, dataString.indexOf("/195.00"));
}
else if (dataString.indexOf("CountX:") >= 0) { //X,Y,Z position
currentPosition.X = dataString.substring(dataString.indexOf("X:") + 2, dataString.indexOf("Y:"));
currentPosition.Y = dataString.substring(dataString.indexOf("Y:") + 2, dataString.indexOf("Z:"));
currentPosition.Z = dataString.substring(dataString.indexOf("Z:") + 2, dataString.indexOf("E:"));
}
}
nightmare.on('download', function(state, downloadItem){
if(state == 'started'){
nightmare.emit('download', modelDownloadFolder+ 'file.zip', downloadItem);
}
});
function getFilesizeInBytes(filename) {
var stats = fs.statSync(filename)
var fileSizeInBytes = stats["size"]
return fileSizeInBytes
}
function findModel(startPath, filter){
if (!fs.existsSync(startPath)){
return '';
}
var files = fs.readdirSync(startPath);
for(var i = 0;i < files.length;i++){
var fileName = path.join(startPath,files[i]);
var stat = fs.lstatSync(fileName);
if (stat.isDirectory()){
findModel(fileName, filter);
}
else if (fileName.indexOf(filter) >= 0) {
// Found
return fileName;
};
};
};
var extractAndConvertDone = {}; // or fs.watch fires multiple times :(
// Download folder watch
fs.watch(modelDownloadFolder, (eventType, filename) => {
if (filename.includes(zipName.replace(".zip","")) && filename.includes(".zip") && getFilesizeInBytes(modelDownloadFolder+filename) > 0) {
var path = modelDownloadFolder+filename;
var stats = fs.statSync(path);
let seconds = +stats.mtime;
if(extractAndConvertDone[filename] === seconds) return;
extractAndConvertDone[filename] = seconds;
console.log("filename:" + filename);
var dest = modelDownloadFolder + filename.replace(".zip", "");
extract(modelDownloadFolder + filename, {dir: dest}, function (err) {
// If .obj file found but .stl is not
console.log(findModel(modelDownloadFolder, ".obj") + " | " + findModel(modelDownloadFolder, ".stl"));
if (findModel(modelDownloadFolder, ".obj") && !findModel(modelDownloadFolder, ".stl")) {
// can add scaling value to command
shell.exec("python obj2stl.py \"" + findModel(modelDownloadFolder, ".obj") + "\" ./temp/temp.stl " + scalingFactor);
}
// If .stl found
else{
fs.rename(findModel(modelDownloadFolder, ".stl"), "./temp/temp.stl",(err) => {
if (err) throw err;
});
}
})
}
});
var sliceDone = {};
var gcodeSentDone = {};
io.on("connection", socket => {
console.log("New client connected");
fs.watch("./temp/", (eventType, filename) => {
if (filename === "temp.stl") {
var path = "./temp/temp.stl";
var stats = fs.statSync(path);
let seconds = +stats.mtime;
if(sliceDone[filename] === seconds) return;
sliceDone[filename] = seconds;
io.sockets.emit("print status", "slicing");
shell.exec("CuraEngine/build/CuraEngine slice -v -j CuraEngine/fdmprinter.def.json -o temp/temp.gcode -l temp/temp.stl");
}
else if (filename === "temp.gcode") {
var path = "./temp/temp.gcode";
var stats = fs.statSync(path);
let seconds = +stats.mtime;
if (gcodeSentDone[filename] === seconds) return;
gcodeSentDone[filename] = seconds;
// open gcode file
io.sockets.emit("print status", "printing");;
setTimeout(function(){
var lr = new LineByLineReader('temp/temp.gcode');
lr.on('error', function (err) {
// 'err' contains error object
});
lr.on('line', function (line) {
// pause emitting of lines...
lr.pause();
// ...do your asynchronous line processing..
setInterval(function () {
if (dataGotten) {
var trimmedLine;
if (line.includes(";")) {
trimmedLine = line.substring(0, line.indexOf(";"));
}
else {
trimmedLine = line;
}
if (trimmedLine && /\S/.test(trimmedLine) && trimmedLine !== '') {
dataGotten = false;
//strip leading and ending whitespace from line of gcode
// append '\n' to line of gcode
trimmedLine = trimmedLine.trim() + '\n';
// Get printer stats
getPrinterStats();
// write resulting line to port
myPort.write(Buffer.from(trimmedLine),function(err,result){
// print response
console.log("Line: " + trimmedLine);
console.log(result);
});
}
clearInterval(this);
// ...and continue emitting lines.
lr.resume();
}
}, 100);
});
lr.on('end', function () {
// All lines are read, file is closed now.
});
}, 3000);
}
});
//Here we listen on a new namespace called "incoming data"
socket.on("search models", (data)=>{
//Here we broadcast it out to all other sockets EXCLUDING the socket which sent us the data
console.log(data);
rp(modelDatabaseURL + data)
.then(function(html){
modelLinks = [];
modelNames = [];
modelThumbnails = [];
var qualifiedModels = [];
for (let i = 0; i < $('.page-results-container > .search-results > .search-result > .search-result__content-wrapper > .search-result__info-wrapper > .search-result__format', html).length; i++) {
var formatsText = $('.page-results-container > .search-results > .search-result > .search-result__content-wrapper > .search-result__info-wrapper > .search-result__format', html)[i].children[0].data;
if (formatsText.includes(".stl") || formatsText.includes(".obj")) {
qualifiedModels.push(i);
}
}
console.log(qualifiedModels.length);
io.sockets.emit("search models num results", qualifiedModels.length);
for (let i = 0; i < $('.page-results-container > .search-results > .search-result > .search-result__content-wrapper > .search-result__thumb-wrapper', html).length; i++) {
if (qualifiedModels.includes(i)) {
modelLinks.push("https://free3d.com" + $('.page-results-container > .search-results > .search-result > .search-result__content-wrapper > .search-result__thumb-wrapper', html)[i].attribs.href);
modelNames.push($('.page-results-container > .search-results > .search-result > .search-result__content-wrapper > .search-result__thumb-wrapper > img', html)[i].attribs.title.replace("3d model", "").trim());
modelThumbnails.push($('.page-results-container > .search-results > .search-result > .search-result__content-wrapper > .search-result__thumb-wrapper > img', html)[i].attribs.src.replace("imgd/s", "imgd/l"));
}
}
console.log(modelNames);
const modelsInfo = {
modelThumbnails: modelThumbnails
};
io.sockets.emit("search models thumbnails", modelsInfo);
})
.catch(function(err){
// Handle error
});
});
socket.on("get model info", (idNumber) =>{
const modelInfo = {
name: modelNames[idNumber],
url: modelLinks[idNumber],
thumbnail: modelThumbnails[idNumber]
};
io.sockets.emit("model info", modelInfo);
});
socket.on("print model", (modelInfo) =>{
console.log("url:" + modelInfo.url);
console.log("scaling factor: " + modelInfo.scalingFactor);
scalingFactor = modelInfo.scalingFactor;
rp(modelInfo.url)
.then(function(html){
if ($('.vault-cont > .files > .file > strong', html).text().includes(".zip")) {
zipName = $('.vault-cont > .files > .file > strong', html).text();
const modelDownload = fs.createWriteStream(modelDownloadFolder + zipName);
const request = http.get(modelPrintURL + zipName, function(response) {
response.pipe(modelDownload);
});
}
})
.catch(function(err){
// Handle error
});
(async () => {
const browser = await puppeteer.launch({
headless: false
});
const page = await browser.newPage();
await page.goto(modelInfo.url);
await page.click('.btn-download');
await page.click('.file');
page.close();
})();
});
function getPrinterStats() {
if (portStatus === "Online") {
// Time elapsed
myPort.write(Buffer.from("M31\n"),function(err,result){
if(err){
console.log('ERR: ' + err);
}
});
// Temperature
myPort.write(Buffer.from("M105\n"),function(err,result){
if(err){
console.log('ERR: ' + err);
}
});
// Position
myPort.write(Buffer.from("M114\n"),function(err,result){
if(err){
console.log('ERR: ' + err);
}
const printerStats = {
timeElapsed: timeElapsed,
temperature: hotendTemperature,
position: currentPosition
};
io.sockets.emit("printer stats", printerStats);
});
}
}
socket.on("get printer stats", () =>{
getPrinterStats();
});
socket.on("get printer status", () => {
// Change so this fires on status change (not asking every x seconds)
io.sockets.emit("printer status", portStatus);
});
//A special namespace "disconnect" for when a client disconnects
socket.on("disconnect", () => console.log("Client disconnected"));
});
server.listen(port, () => console.log(`Listening on port ${port}`));