kolloquiums.js

const { Router } = require('express')
var fs = require("fs");
var exec = require('child_process').exec;
var extract = require('extract-zip')
const router = Router();
const path = require('path');
const {resolve} = require("path");
const replace = require('replace-in-file');

const kolloquiumDirectory = '../Kolloquiums'
const modDirectory = 'C:/Users/Nick/Documents/UnrealEngine/Projects/KolloquiumVR/Mods'
const pakDirectory = 'C:/Users/Nick/Documents/UnrealPackagedGames/KolloquiumVR/WindowsNoEditor/KolloquiumVR/Mods'
const editorFile = 'C:/Users/Nick/Documents/UnrealEngine/Projects/KolloquiumVR/Saved/Config/Windows/Editor.ini'


function getDirectories(path) {
    // check if directory exists
    if (fs.existsSync(path)) {
        return fs.readdirSync(path).filter(function (file) {
            return fs.statSync(path+'/'+file).isDirectory();
        });
    } else {
        console.log('Directory not found.');
        return []
    }
}

function isEmpty(checkString) {
    return (!checkString || checkString.trim().length == 0)
}

function removeDangerousSymbols(fname) {
    // https://stackoverflow.com/a/31976060
    // https://gist.github.com/doctaphred/d01d05291546186941e1b7ddc02034d3
    // removed check for empty: if is empty, nothing should be done with the string by the other api functions 

    const fname_original = fname;

    // resolve multi-line, whitespace trimming
    fname = fname.split(/[\r\n]/).map(s => s.trim()).filter(s => s.length).join("  ");
    // forbidden characters
    // (after multi-line, because new-line-chars are themselves forbidden characters)
    fname = fname.replaceAll(/[<>.:"\/\\\|?*\x00-\x1F]/g, '');
    // advanced trim
    fname = fname.replace(/\.$/, "");

    // remove blank spaces because it breaks paths
    // TODO: Make it so blank spaces do not breka paths anymore
    fname = fname.replaceAll(' ', '_');

    // forbidden filenames
    if (fname.match(/^(CON|PRN|AUX|NUL|COM1|COM2|COM3|COM4|COM5|COM6|COM7|COM8|COM9|LPT1|LPT2|LPT3|LPT4|LPT5|LPT6|LPT7|LPT8|LPT9)(\..+)?$/)) {
        fname = `_${fname}`;
    }
    
    return fname;
}

fs.mkdir(kolloquiumDirectory,function(err) {
    if (err && err.code === "EEXIST") {
        console.log('Kolloquiums Directory already existed')
    }
    else if (err) {
        return console.error(err);
    }
    else {
        console.log("Directory created successfully");
    }
});