286 lines
7.9 KiB
JavaScript
286 lines
7.9 KiB
JavaScript
const config = require('../config.js');
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const path = require('path');
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const multer = require('multer');
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const randomstring = require('randomstring');
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const db = require('knex')(config.database);
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const crypto = require('crypto');
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const fs = require('fs');
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const utils = require('./utilsController.js');
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const uploadsController = {};
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const storage = multer.diskStorage({
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destination: function(req, file, cb) {
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cb(null, path.join(__dirname, '..', config.uploads.folder));
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},
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filename: function(req, file, cb) {
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cb(null, randomstring.generate(config.uploads.fileLength) + path.extname(file.originalname));
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}
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});
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const upload = multer({
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storage: storage,
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limits: { fileSize: config.uploads.maxSize },
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fileFilter: function(req, file, cb) {
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if (config.blockedExtensions !== undefined) {
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if (config.blockedExtensions.some(extension => path.extname(file.originalname).toLowerCase() === extension)) {
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return cb('This file extension is not allowed');
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}
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return cb(null, true);
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}
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return cb(null, true);
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}
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}).array('files[]');
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uploadsController.upload = async (req, res, next) => {
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if (config.private === true) {
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await utils.authorize(req, res);
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}
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const token = req.headers.token || '';
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const user = await db.table('users').where('token', token).first();
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const albumid = req.headers.albumid || req.params.albumid;
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if (albumid && user) {
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const album = await db.table('albums').where({ id: albumid, userid: user.id }).first();
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if (!album) {
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return res.json({
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success: false,
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description: 'Album doesn\'t exist or it doesn\'t belong to the user'
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});
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}
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return uploadsController.actuallyUpload(req, res, user, albumid);
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}
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return uploadsController.actuallyUpload(req, res, user, albumid);
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};
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uploadsController.actuallyUpload = async (req, res, userid, album) => {
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upload(req, res, async err => {
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if (err) {
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console.error(err);
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return res.json({ success: false, description: err });
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}
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if (req.files.length === 0) return res.json({ success: false, description: 'no-files' });
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const files = [];
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const existingFiles = [];
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let iteration = 1;
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req.files.forEach(async file => {
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// Check if the file exists by checking hash and size
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let hash = crypto.createHash('md5');
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let stream = fs.createReadStream(path.join(__dirname, '..', config.uploads.folder, file.filename));
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stream.on('data', data => {
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hash.update(data, 'utf8');
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});
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stream.on('end', async () => {
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const fileHash = hash.digest('hex');
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const dbFile = await db.table('files')
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.where(function() {
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if (userid === undefined) this.whereNull('userid');
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else this.where('userid', userid.id);
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})
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.where({
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hash: fileHash,
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size: file.size
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})
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.first();
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if (!dbFile) {
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files.push({
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name: file.filename,
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original: file.originalname,
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type: file.mimetype,
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size: file.size,
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hash: fileHash,
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ip: req.ip,
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albumid: album,
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userid: userid.id,
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timestamp: Math.floor(Date.now() / 1000)
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});
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} else {
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uploadsController.deleteFile(file.filename).then(() => {}).catch(err => console.error(err));
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existingFiles.push(dbFile);
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}
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if (iteration === req.files.length) {
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return uploadsController.processFilesForDisplay(req, res, files, existingFiles);
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}
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iteration++;
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});
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});
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});
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};
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uploadsController.processFilesForDisplay = async (req, res, files, existingFiles) => {
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let basedomain = config.domain;
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if (files.length === 0) {
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return res.json({
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success: true,
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files: existingFiles.map(file => {
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return {
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name: file.name,
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size: file.size,
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url: `${basedomain}/${file.name}`
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};
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})
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});
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}
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await db.table('files').insert(files);
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for (let efile of existingFiles) files.push(efile);
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res.json({
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success: true,
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files: files.map(file => {
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return {
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name: file.name,
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size: file.size,
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url: `${basedomain}/${file.name}`
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};
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})
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});
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for (let file of files) {
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let ext = path.extname(file.name).toLowerCase();
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if (utils.imageExtensions.includes(ext) || utils.videoExtensions.includes(ext)) {
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file.thumb = `${basedomain}/thumbs/${file.name.slice(0, -ext.length)}.png`;
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utils.generateThumbs(file);
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}
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if (file.albumid) {
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db.table('albums').where('id', file.albumid).update('editedAt', file.timestamp).then(() => {})
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.catch(error => { console.log(error); res.json({ success: false, description: 'Error updating album' }); });
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}
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}
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};
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uploadsController.delete = async (req, res) => {
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const user = await utils.authorize(req, res);
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const id = req.body.id;
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if (id === undefined || id === '') {
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return res.json({ success: false, description: 'No file specified' });
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}
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const file = await db.table('files')
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.where('id', id)
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.where(function() {
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if (user.username !== 'root') {
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this.where('userid', user.id);
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}
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})
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.first();
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try {
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await uploadsController.deleteFile(file.name);
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await db.table('files').where('id', id).del();
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if (file.albumid) {
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await db.table('albums').where('id', file.albumid).update('editedAt', Math.floor(Date.now() / 1000));
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}
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} catch (err) {
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console.log(err);
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}
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return res.json({ success: true });
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};
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uploadsController.deleteFile = function(file) {
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const ext = path.extname(file).toLowerCase();
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return new Promise((resolve, reject) => {
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fs.stat(path.join(__dirname, '..', config.uploads.folder, file), (err, stats) => {
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if (err) { return reject(err); }
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fs.unlink(path.join(__dirname, '..', config.uploads.folder, file), err => {
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if (err) { return reject(err); }
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if (!utils.imageExtensions.includes(ext) && !utils.videoExtensions.includes(ext)) {
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return resolve();
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}
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file = file.substr(0, file.lastIndexOf('.')) + '.png';
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fs.stat(path.join(__dirname, '..', config.uploads.folder, 'thumbs/', file), (err, stats) => {
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if (err) {
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console.log(err);
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return resolve();
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}
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fs.unlink(path.join(__dirname, '..', config.uploads.folder, 'thumbs/', file), err => {
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if (err) { return reject(err); }
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return resolve();
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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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uploadsController.list = async (req, res) => {
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const user = await utils.authorize(req, res);
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let offset = req.params.page;
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if (offset === undefined) offset = 0;
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const files = await db.table('files')
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.where(function() {
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if (req.params.id === undefined) this.where('id', '<>', '');
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else this.where('albumid', req.params.id);
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})
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.where(function() {
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if (user.username !== 'root') this.where('userid', user.id);
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})
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.orderBy('id', 'DESC')
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.limit(25)
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.offset(25 * offset)
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.select('id', 'albumid', 'timestamp', 'name', 'userid');
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const albums = await db.table('albums');
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let basedomain = config.domain;
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let userids = [];
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for (let file of files) {
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file.file = `${basedomain}/${file.name}`;
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file.date = new Date(file.timestamp * 1000);
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file.date = utils.getPrettyDate(file.date);
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file.album = '';
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if (file.albumid !== undefined) {
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for (let album of albums) {
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if (file.albumid === album.id) {
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file.album = album.name;
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}
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}
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}
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// Only push usernames if we are root
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if (user.username === 'root') {
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if (file.userid !== undefined && file.userid !== null && file.userid !== '') {
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userids.push(file.userid);
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}
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}
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let ext = path.extname(file.name).toLowerCase();
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if (utils.imageExtensions.includes(ext) || utils.videoExtensions.includes(ext)) {
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file.thumb = `${basedomain}/thumbs/${file.name.slice(0, -ext.length)}.png`;
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}
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}
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// If we are a normal user, send response
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if (user.username !== 'root') return res.json({ success: true, files });
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// If we are root but there are no uploads attached to a user, send response
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if (userids.length === 0) return res.json({ success: true, files });
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const users = await db.table('users').whereIn('id', userids);
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for (let dbUser of users) {
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for (let file of files) {
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if (file.userid === dbUser.id) {
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file.username = dbUser.username;
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}
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}
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}
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return res.json({ success: true, files });
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};
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module.exports = uploadsController;
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