348 lines
16 KiB
JavaScript
348 lines
16 KiB
JavaScript
const fs = require("fs"),
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config = require("../config/config.json"),
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chalk = require("chalk"),
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busboy = require("connect-busboy"),
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randomstring = require("randomstring"),
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getSize = require("get-folder-size"),
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diskUsage = require("diskusage"),
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emoji = require("../misc/emoji_list.json");
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// Defines the function of this module
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const MODULE_FUNCTION = "handle_requests",
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// Base path for module folder creation and navigation
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BASE_PATH = "/EUS";
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let eusConfig = {},
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image_json = {},
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d = new Date(),
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startTime,
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endTime,
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useUploadKey = true;
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// Only ran on startup so using sync functions is fine
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// Makes the folder for files of the module
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if (!fs.existsSync(__dirname + BASE_PATH)) {
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fs.mkdirSync(__dirname + BASE_PATH);
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console.log(`[EUS] Made EUS module folder`);
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}
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// Makes the folder for frontend files
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if (!fs.existsSync(__dirname + BASE_PATH + "/files")) {
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fs.mkdirSync(__dirname + BASE_PATH + "/files");
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console.log(`[EUS] Made EUS web files folder`);
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}
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// Makes the folder for images
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if (!fs.existsSync(__dirname + BASE_PATH + "/i")) {
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fs.mkdirSync(__dirname + BASE_PATH + "/i");
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console.log(`[EUS] Made EUS images folder`);
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}
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// Makes the image-type file
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if (!fs.existsSync(__dirname + BASE_PATH + "/image-type.json")) {
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// Doesn't exist, create it.
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fs.writeFileSync(`${__dirname}${BASE_PATH}/image-type.json`, '{}');
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console.log("[EUS] Made EUS image-type File!");
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// File has been created, load it.
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image_json = require(`${__dirname}${BASE_PATH}/image-type.json`);
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} else {
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// File already exists, load it.
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image_json = require(`${__dirname}${BASE_PATH}/image-type.json`);
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}
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// Makes the config file
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if (!fs.existsSync(__dirname + BASE_PATH + "/config.json")) {
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// Config doesn't exist, make it.
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fs.writeFileSync(`${__dirname}${BASE_PATH}/config.json`, '{\n\t"baseURL":"http://example.com/",\n\t"acceptedTypes": [\n\t\t".png",\n\t\t".jpg",\n\t\t".jpeg",\n\t\t".gif"\n\t],\n\t"uploadKey": ""\n}');
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console.log("[EUS] Made EUS config File!");
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console.log("[EUS] Please edit the EUS Config file before restarting.");
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// Config has been made, close framework.
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process.exit(0);
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} else {
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eusConfig = require(`${__dirname}${BASE_PATH}/config.json`);
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if (validateConfig(eusConfig)) console.log("[EUS] EUS config passed all checks");
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}
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function validateConfig(json) {
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let performShutdownAfterValidation = false;
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// URL Tests
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if (json["baseURL"] == null) {
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console.error("EUS baseURL property does not exist!");
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performShutdownAfterValidation = true;
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} else {
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if (json["baseURL"] == "")
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console.warn("EUS baseURL property is blank");
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const bURL = `${json["baseURL"]}`.split("");
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if (bURL.length > 1) {
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if (bURL[bURL.length-1] != "/") console.warn("EUS baseURL property doesn't have a / at the end, this can lead to unpredictable results!");
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}
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else {
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if (json["baseURL"] != "http://" || json["baseURL"] != "https://") console.warn("EUS baseURL property is possibly invalid!");
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}
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}
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// acceptedTypes checks
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if (json["acceptedTypes"] == null) {
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console.error("EUS acceptedTypes array does not exist!");
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performShutdownAfterValidation = true;
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} else {
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if (json["acceptedTypes"].length < 1) console.warn("EUS acceptedTypes array has no extentions in it, users will not be able to upload images!");
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}
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// uploadKey checks
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if (json["uploadKey"] == null) {
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console.error("EUS uploadKey property does not exist!");
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performShutdownAfterValidation = true;
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} else {
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if (json["uploadKey"] == "") useUploadKey = false;
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}
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// Check if server needs to be shutdown
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if (performShutdownAfterValidation) {
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console.error("EUS config properties are missing, refer to docs for more details (https://docs.ethanus.ml)");
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process.exit(1);
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}
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else return true;
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}
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module.exports = {
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extras:function() {
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// Setup express to use busboy
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global.app.use(busboy());
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},
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get:function(req, res) {
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/*
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req - Request from client
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res - Response from server
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*/
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// Set some headers
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res.set("Strict-Transport-Security", "max-age=31536000; includeSubDomains");
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res.set("X-XSS-Protection", "1; mode=block");
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res.set("Feature-Policy", "fullscreen 'none'");
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res.set("Referrer-Policy", "strict-origin-when-cross-origin");
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res.set("Content-Security-Policy", "block-all-mixed-content;frame-ancestors 'self'");
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res.set("X-Frame-Options", "SAMEORIGIN");
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res.set("X-Content-Type-Options", "nosniff");
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// Check if returned value is true.
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if (req.url.includes("/api/")) return handleAPI(req, res);
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// Register the time at the start of the request
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d = new Date();
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startTime = d.getTime();
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// Get the requested image
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let urs = ""+req.url; urs = urs.split("/")[1];
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// Get the file type of the image from image_json and make sure it exists
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fs.access(__dirname + BASE_PATH + "/i/"+urs+image_json[urs], error => {
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if (error) {
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// Doesn't exist, handle request normaly
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if (req.url === "/") { urs = "/index.html" } else { urs = req.url }
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fs.access(__dirname + BASE_PATH + "/files"+urs, error => {
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if (error) {
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// Doesn't exist, send a 404 to the client.
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res.status(404).end("404!");
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d = new Date();
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endTime = d.getTime();
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global.modules.consoleHelper.printInfo(emoji.cross, `${req.method}: ${chalk.red("[404]")} ${req.url} ${endTime - startTime}ms`);
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} else {
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// File does exist, send it back to the client.
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res.sendFile(__dirname + BASE_PATH + "/files"+req.url);
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d = new Date();
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endTime = d.getTime();
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: ${chalk.green("[200]")} ${req.url} ${endTime - startTime}ms`);
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}
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});
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} else {
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// Image does exist, send it back.
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res.sendFile(__dirname + BASE_PATH + "/i/"+urs+image_json[urs]);
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d = new Date();
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endTime = d.getTime();
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: ${chalk.green("[200]")} ${req.url} ${endTime - startTime}ms`);
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}
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});
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},
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post:function(req, res) {
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/*
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req - Request from client
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res - Response from server
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*/
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// Make sure the endpoint is /upload
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// If it isn't upload send an empty response
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if (req.url != "/upload") return res.end("");
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// Get time at the start of upload
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if (useUploadKey && eusConfig["uploadKey"] != req.header("key")) return res.end("Incorrect key provided for upload");
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d = new Date(); startTime = d.getTime();
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var fstream;
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var thefe;
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// Pipe the request to busboy
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req.pipe(req.busboy);
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req.busboy.on('file', function (fieldname, file, filename) {
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// Get the image-type json
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image_json = require(`${__dirname}${BASE_PATH}/image-type.json`);
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// Make a new file name
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fileOutName = randomstring.generate(14);
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global.modules.consoleHelper.printInfo(emoji.fast_up, `${req.method}: Upload of ${fileOutName} started.`);
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// Check the file is within the accepted file types
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if (eusConfig.acceptedTypes.includes(`.${filename.split(".")[filename.split(".").length-1]}`)) {
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// File is accepted, set the extention of the file in thefe for later use.
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thefe = `.${filename.split(".")[filename.split(".").length-1]}`;
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} else {
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// File isn't accepted, send response back to client stating so.
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res.end("This file type isn't accepted currently.");
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return;
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}
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// Create a write stream for the file
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fstream = fs.createWriteStream(__dirname + BASE_PATH + "/i/" + fileOutName + thefe);
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file.pipe(fstream);
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fstream.on('close', function () {
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// Get the time at the end of the upload
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d = new Date(); endTime = d.getTime();
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// Add image file type to the image_json array
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image_json[fileOutName] = `.${filename.split(".")[filename.split(".").length-1]}`;
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// Save image_json array to the file
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fs.writeFile(`${__dirname}${BASE_PATH}/image-type.json`, JSON.stringify(image_json), function(err) {
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if (err) throw err;
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: Upload of ${fileOutName} finished. Took ${endTime - startTime}ms`);
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// Send URL of the uploaded image to the client
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res.end(eusConfig.baseURL+""+fileOutName);
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});
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});
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});
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}
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}
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function handleAPI(req, res) {
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d = new Date(); startTime = d.getTime();
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let jsonaa = {}, filesaa = 0, spaceaa = 0;
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switch (req.url.split("?")[0]) {
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// Status check to see the onlint status of EUS
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// Used by ESL to make sure EUS is online
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case "/api/get-server-status":
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d = new Date(); endTime = d.getTime();
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: ${chalk.green("[200]")} ${req.url} ${endTime - startTime}ms`);
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return res.end('{ "status":1, "version":"'+global.internals.version+'" }');
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/* Stats api endpoint
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Query inputs
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f : Values [0,1]
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s : Values [0,1]
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*/
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case "/api/get-stats":
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filesaa = req.query["f"];
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spaceaa = req.query["s"];
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jsonaa = {};
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// If total files is asked for
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if (filesaa == 1) {
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let total = 0;
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jsonaa["files"] = {};
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// Add each accepted file type to the json
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for (var i2 = 0; i2 < eusConfig.acceptedTypes.length; i2++) {
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jsonaa["files"][`${eusConfig.acceptedTypes[i2]}`.replace(".", "")] = 0;
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}
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// Read all files from the images directory
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fs.readdir(__dirname + BASE_PATH + "/i", (err, files) => {
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if (err) throw err;
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// Loop through all files
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for (var i = 0; i < files.length; i++) {
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// Loop through all accepted file types to check for a match
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for (var i1 = 0; i1 < eusConfig.acceptedTypes.length; i1++) {
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const jsudfg = files[i].split(".");
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if (`.${jsudfg[jsudfg.length-1]}` == eusConfig.acceptedTypes[i1]) {
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// There is a match! Add it to the json
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jsonaa["files"][eusConfig.acceptedTypes[i1].replace(".", "")]++;
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// Also increase the total
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total++;
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}
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}
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}
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// Set the total in the json to the calculated total value
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jsonaa["files"]["total"] = total;
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// If getting the space used on the server isn't required send the json
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if (spaceaa != 1) {
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d = new Date(); endTime = d.getTime();
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: ${chalk.green("[200]")} ${req.url} ${endTime - startTime}ms`);
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return res.end(JSON.stringify(jsonaa));
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}
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});
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}
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// Getting space is required
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if (spaceaa == 1) {
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jsonaa["space"] = {
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usage: {}
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};
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// Get the space used on the disk
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getSize(__dirname + BASE_PATH + "/i", (err, size) => {
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if (err) throw err;
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// Calculate in different units the space taken up on disk
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let sizeOfFolder = (size / 1024 / 1024);
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jsonaa["space"]["usage"]["mb"] = sizeOfFolder;
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sizeOfFolder = (size / 1024 / 1024 / 1024);
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jsonaa["space"]["usage"]["gb"] = sizeOfFolder;
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jsonaa["space"]["usage"]["string"] = spaceToLowest(size, true);
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// Get total disk space
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diskUsage.check(__dirname, (err, data) => {
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if (err) throw err;
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jsonaa["space"]["total"] = {
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value: spaceToLowest(data["total"], false),
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mbvalue: (data["total"] / 1024 / 1024),
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gbvalue: (data["total"] / 1024 / 1024 / 1024),
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stringValue: spaceToLowest(data["total"], true).split(" ")[1].toLowerCase(),
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string: spaceToLowest(data["total"], true)
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};
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});
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// Send the json to the requesting client
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d = new Date(); endTime = d.getTime();
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: ${chalk.green("[200]")} ${req.url} ${endTime - startTime}ms`);
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return res.end(JSON.stringify(jsonaa));
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});
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}
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if (filesaa != 1 && spaceaa != 1) {
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d = new Date(); endTime = d.getTime();
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: ${chalk.green("[200]")} ${req.url} ${endTime - startTime}ms`);
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return res.end("Please add f and or s to your queries to get the files and space");
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}
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break;
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// Information API
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case "/api/get-info":
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d = new Date(); endTime = d.getTime();
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: ${chalk.green("[200]")} ${req.url} ${endTime - startTime}ms`);
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return res.end(JSON.stringify({
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version: global.internals.version,
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instance: config["server"]["instance_type"]
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}));
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default:
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d = new Date(); endTime = d.getTime();
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: ${chalk.green("[200]")} ${req.url} ${endTime - startTime}ms`);
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return res.send(`
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<h2>All currently avaliable api endpoints</h2>
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<a href="/api/get-server-status">/api/get-server-status</a>
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<a href="/api/get-stats">/api/get-stats</a>
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<a href="/api/get-info">/api/get-info</a>
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`);
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}
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}
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const spaceValues = ["B", "KB", "MB", "GB", "TB", "PB", "EB"]; // Futureproofing:tm:
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function spaceToLowest(spaceValue, includeStringValue) {
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// Converts space values to lower values e.g MB, GB, TB etc depending on the size of the number
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let i1 = 1;
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// Loop through until value is at it's lowest
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for (let i = 0; i < i1; i++) {
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if (spaceValue >= 1024) {
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spaceValue = spaceValue / 1024;
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}
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if (spaceValue >= 1024) i1++;
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}
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if (includeStringValue) return `${spaceValue.toFixed(2)} ${spaceValues[i1]}`;
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else return spaceValue;
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}
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module.exports.MOD_FUNC = MODULE_FUNCTION; |