Various changes to improve speed, reliability and code quality
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parent
7f8ea1f843
commit
aa15a0bd95
170
EUS.js
170
EUS.js
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@ -1,4 +1,4 @@
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const fs = require("fs"), config = require("../config/config.json"), emoji = require("../misc/emoji_list.json");
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const config = require("../config/config.json"), crypto = require("crypto"), emoji = require("../misc/emoji_list.json"), fs = require("fs");
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// Defines the function of this module
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const MODULE_FUNCTION = "handle_requests",
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@ -12,11 +12,12 @@ let eusConfig = {},
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useUploadKey = true,
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cacheJSON = "",
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startupFinished = false,
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diskRunningOnSize = 0;
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diskRunningOnSize = 0,
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timeSinceLastCache = Date.now();
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class Database {
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constructor(databaseAddress, databasePort = 3306, databaseUsername, databasePassword, databaseName, connectedCallback) {
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this.connectionPool = node_modules.mysql.createPool({
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this.connectionPool = node_modules["mysql2"].createPool({
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connectionLimit: 128,
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host: databaseAddress,
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port: databasePort,
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@ -25,6 +26,7 @@ class Database {
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database: databaseName
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});
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const classCreationTime = Date.now();
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this.dbActive = false;
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if (connectedCallback == null) {
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this.dbActive = true;
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@ -32,37 +34,60 @@ class Database {
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const connectionCheckInterval = setInterval(() => {
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this.query("SELECT id FROM images LIMIT 1")
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.then(data => {
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if (startupFinished) global.modules.consoleHelper.printInfo(emoji.globe_europe, `Connected to database`);
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else console.log("[EUS] Connected to database");
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global.modules.consoleHelper.printInfo(emoji.globe_europe, `Connected to database. Took ${Date.now() - classCreationTime}ms`);
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this.dbActive = true;
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clearInterval(connectionCheckInterval);
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connectedCallback();
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})
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.catch(err => {});
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.catch(err => {
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console.error(err);
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});
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}, 167); // Roughly 6 times per sec
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}
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}
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async query(sqlQuery) {
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dataReceived(resolveCallback, data, limited = false) {
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if (limited) resolveCallback(data[0]);
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else resolveCallback(data);
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}
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query(query = "", data) {
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const limited = query.includes("LIMIT 1");
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return new Promise((resolve, reject) => {
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this.connectionPool.getConnection((err, connection) => {
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if (err) {
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reject(err);
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try {
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connection.release();
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} catch (e) {}
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try { connection.release();}
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catch (e) {
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console.error("Failed to release mysql connection", err);
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}
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} else {
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connection.query(sqlQuery, (err, data) => {
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if (err) {
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reject(err);
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connection.release();
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} else {
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if (sqlQuery.includes("LIMIT 1")) resolve(data[0]);
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else resolve(data);
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connection.release();
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}
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});
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// Use old query
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if (data == null) {
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connection.query(query, (err, data) => {
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if (err) {
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reject(err);
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connection.release();
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} else {
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this.dataReceived(resolve, data, limited);
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connection.release();
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}
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});
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}
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// Use new prepared statements w/ placeholders
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else {
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connection.execute(query, data, (err, data) => {
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if (err) {
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reject(err);
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connection.release();
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} else {
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this.dataReceived(resolve, data, limited);
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connection.release();
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}
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});
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}
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}
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});
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});
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@ -77,7 +102,7 @@ function init() {
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node_modules["randomstring"] = require("randomstring");
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node_modules["diskUsage"] = require("diskusage");
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node_modules["streamMeter"] = require("stream-meter");
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node_modules["mysql"] = require("mysql");
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node_modules["mysql2"] = require("mysql2");
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// Only ran on startup so using sync functions is fine
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@ -237,9 +262,12 @@ function cleanURL(url = "") {
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.split("%40").join("@")
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.split("%5B").join("[").split("%5C").join("\\").split("%5D").join("]").split("%5E").join("^")
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.split("%60").join("`")
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.split("%7B").join("{").split("%7C").join("|").split("%7D").join("}").split("%7E").join("~");
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.split("%7B").join("{").split("%7C").join("|").split("%7D").join("}").split("%7E").join("~")
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.split("%CE%A9").join("Ω");
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}
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let existanceCache = {};
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function regularFile(req, res, urs = "", startTime = 0) {
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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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@ -255,6 +283,11 @@ function regularFile(req, res, urs = "", startTime = 0) {
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});
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}
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function imageFile(req, res, file, startTime = 0) {
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res.sendFile(`${__dirname}${BASE_PATH}/i/${file}`);
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: ${node_modules.chalk.green("[200]")} (ImageReq) ${req.url} ${Date.now() - startTime}ms`);
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}
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function error404Page(res) {
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res.status(404).send("404!<hr>EUS");
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}
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@ -286,6 +319,12 @@ module.exports = {
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req.url = cleanURL(req.url);
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// The Funny Response
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if (req.url.includes(".php") || req.url.includes("/wp-")) {
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global.modules.consoleHelper.printWarn(emoji.globe_europe, `${req.method}: SUSSY ${req.headers["cf-connecting-ip"]} ${req.url}`);
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return res.status(418).send("Unfortunately for you this server does not use PHP or WordPress.<hr>EUS");
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}
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// Check if returned value is true.
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if (req.url.includes("/api/")) return handleAPI(req, res);
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@ -293,24 +332,28 @@ module.exports = {
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const startTime = Date.now();
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// Get the requested image
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let urs = `${req.url}`; urs = urs.split("/")[1];
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const urs = req.url.split("/")[1];
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// Check if we even need to query the DB
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const dbAble = (!/[^0-9A-Za-z]/.test(urs)) && urs != "" && urs != "index" && (req.url.split("/").length == 2);
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if (dbAble) {
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if (dbConnection.dbActive) {
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// Try to get what we think is an image's details from the DB
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const dbEntry = await dbConnection.query(`SELECT imageType FROM images WHERE imageId = "${urs}" LIMIT 1`);
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// There's an entry in the DB for this, send the file back.
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if (dbEntry != null) {
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res.sendFile(`${__dirname}${BASE_PATH}/i/${urs}.${dbEntry.imageType}`);
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: ${node_modules.chalk.green("[200]")} (ImageReq) ${req.url} ${Date.now() - startTime}ms`);
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if (urs in existanceCache) {
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imageFile(req, res, `${urs}.${existanceCache[urs]}`, startTime);
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} else {
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if (dbConnection.dbActive) {
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// Try to get what we think is an image's details from the DB
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const dbEntry = await dbConnection.query(`SELECT imageType FROM images WHERE imageId = ? LIMIT 1`, [urs]);
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// There's an entry in the DB for this, send the file back.
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if (dbEntry != null) {
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existanceCache[urs] = dbEntry.imageType;
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imageFile(req, res, `${urs}.${dbEntry.imageType}`, startTime);
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}
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// There's no entry, so treat this as a regular file.
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else regularFile(req, res, urs, startTime);
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}
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// There's no entry, so treat this as a regular file.
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else regularFile(req, res, urs, startTime);
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else res.status(400).end("EUS is restarting, please try again in a few secs.");
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}
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else res.status(400).end("EUS is restarting, please try again in a few secs.");
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}
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// We can still serve files if they are not dbable
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// since we don't need to check the db
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@ -328,11 +371,11 @@ module.exports = {
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// Get time at the start of upload
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res.header("Access-Control-Allow-Origin", "*");
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if (useUploadKey && eusConfig["uploadKey"] != req.header("key")) return res.end("Incorrect key provided for upload");
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const startTime = Date.now();
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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, info) {
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@ -340,7 +383,11 @@ module.exports = {
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fileOutName = node_modules.randomstring.generate(14);
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global.modules.consoleHelper.printInfo(emoji.fast_up, `${req.method}: Upload of ${fileOutName} started.`);
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// Check the file is within the accepted file types
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const fileType = info.filename.split(".").slice(-1);
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let fileType = info.filename.split(".").slice(-1);
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if (info.filename === "blob") {
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fileType = info.mimeType.split("/")[1];
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}
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var thefe = "";
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if (eusConfig.acceptedTypes.includes(`.${fileType}`)) {
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// File is accepted, set the extention of the file in thefe for later use.
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thefe = fileType;
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@ -350,14 +397,32 @@ module.exports = {
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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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// Create meter for tracking the size of the file
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const meter = node_modules.streamMeter();
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file.pipe(meter).pipe(fstream);
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let fstream = fs.createWriteStream(__dirname + BASE_PATH + "/i/" + fileOutName + "." + thefe);
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file.pipe(fstream);
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// Get all file data for the file MD5
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let fileData = [];
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file.on("data", (chunk) => {
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fileData.push(chunk);
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});
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fstream.on('close', async () => {
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// Add this image to the database
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await dbConnection.query(`INSERT INTO images (id, imageId, imageType, imageSize) VALUES (NULL, "${fileOutName}", "${thefe}", ${meter.bytes})`);
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let md5Buffer = Buffer.concat(fileData);
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// bye
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fileData = null;
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// Create MD5 hash of file
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const hash = crypto.createHash("md5");
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hash.setEncoding("hex");
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hash.write(md5Buffer);
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hash.end();
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// Add to the existance cache
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existanceCache[fileOutName] = thefe[0];
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// Store image data in db
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await dbConnection.query(`INSERT INTO images (id, imageId, imageType, hash, imageSize) VALUES (NULL, ?, ?, ?, ?)`, [fileOutName, thefe[0], hash.read(), md5Buffer.length]);
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// Send URL of the uploaded image to the client
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res.end(eusConfig.baseURL + fileOutName);
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: Upload of ${fileOutName} finished. Took ${Date.now() - startTime}ms`);
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@ -366,6 +431,19 @@ module.exports = {
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cacheJSON = JSON.stringify(await cacheFilesAndSpace());
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cacheIsReady = true;
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});
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/*fstream.on('close', async () => {
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// Add this image to the database
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await dbConnection.query(`INSERT INTO images (id, imageId, imageType, hash, imageSize) VALUES (NULL, "${fileOutName}", "${thefe}", ${meter.bytes})`);
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// Send URL of the uploaded image to the client
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res.end(eusConfig.baseURL + fileOutName);
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global.modules.consoleHelper.printInfo(emoji.heavy_check, `${req.method}: Upload of ${fileOutName} finished. Took ${Date.now() - startTime}ms`);
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// Update cached files & space
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cacheJSON = JSON.stringify(await cacheFilesAndSpace());
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cacheIsReady = true;
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});*/
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});
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}
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}
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@ -452,5 +530,5 @@ module.exports.MOD_FUNC = MODULE_FUNCTION;
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module.exports.REQUIRED_NODE_MODULES = [
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"chalk", "connect-busboy", "randomstring",
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"diskusage", "stream-meter", "mysql"
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];
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"diskusage", "stream-meter", "mysql2"
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];
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