229 lines
7.7 KiB
JavaScript
229 lines
7.7 KiB
JavaScript
const jetpack = require('fs-jetpack');
|
|
const randomstring = require('randomstring');
|
|
const path = require('path');
|
|
const JWT = require('jsonwebtoken');
|
|
const db = require('knex')({
|
|
client: process.env.DB_CLIENT,
|
|
connection: {
|
|
host: process.env.DB_HOST,
|
|
user: process.env.DB_USER,
|
|
password: process.env.DB_PASSWORD,
|
|
database: process.env.DB_DATABASE,
|
|
filename: path.join(__dirname, '..', '..', '..', 'database.sqlite')
|
|
},
|
|
useNullAsDefault: process.env.DB_CLIENT === 'sqlite' ? true : false
|
|
});
|
|
const moment = require('moment');
|
|
const log = require('../utils/Log');
|
|
const crypto = require('crypto');
|
|
const sharp = require('sharp');
|
|
const ffmpeg = require('fluent-ffmpeg');
|
|
const Zip = require('adm-zip');
|
|
|
|
const imageExtensions = ['.jpg', '.jpeg', '.bmp', '.gif', '.png', '.webp'];
|
|
const videoExtensions = ['.webm', '.mp4', '.wmv', '.avi', '.mov'];
|
|
const blockedExtensions = process.env.BLOCKED_EXTENSIONS.split(',');
|
|
|
|
class Util {
|
|
static isExtensionBlocked(extension) {
|
|
return blockedExtensions.includes(extension);
|
|
}
|
|
|
|
static generateThumbnails(filename) {
|
|
const ext = path.extname(filename).toLowerCase();
|
|
const output = `${filename.slice(0, -ext.length)}.png`;
|
|
if (imageExtensions.includes(ext)) return this.generateThumbnailForImage(filename, output);
|
|
if (videoExtensions.includes(ext)) return this.generateThumbnailForVideo(filename);
|
|
return null;
|
|
}
|
|
|
|
/*
|
|
static async removeExif(filename) {
|
|
This needs more testing.
|
|
Even though the exif data seems to be stripped, no other online service
|
|
is recognizing the file as an image file.
|
|
|
|
const ExifTransformer = require('exif-be-gone');
|
|
const toStream = require('buffer-to-stream');
|
|
|
|
const file = await jetpack.readAsync(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, filename), 'buffer');
|
|
const writer = jetpack.createWriteStream(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, `${filename}.noexif`));
|
|
toStream(file).pipe(new ExifTransformer()).pipe(writer);
|
|
}
|
|
*/
|
|
|
|
static async generateThumbnailForImage(filename, output) {
|
|
const file = await jetpack.readAsync(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, filename), 'buffer');
|
|
await sharp(file)
|
|
.resize(64, 64)
|
|
.toFormat('png')
|
|
.toFile(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, 'thumbs', 'square', output));
|
|
await sharp(file)
|
|
.resize(225, null)
|
|
.toFormat('png')
|
|
.toFile(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, 'thumbs', output));
|
|
}
|
|
|
|
static generateThumbnailForVideo(filename) {
|
|
ffmpeg(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, filename))
|
|
.thumbnail({
|
|
timestamps: [0],
|
|
filename: '%b.png',
|
|
folder: path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, 'thumbs', 'square'),
|
|
size: '64x64'
|
|
})
|
|
.on('error', error => log.error(error.message));
|
|
ffmpeg(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, filename))
|
|
.thumbnail({
|
|
timestamps: [0],
|
|
filename: '%b.png',
|
|
folder: path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, 'thumbs'),
|
|
size: '150x?'
|
|
})
|
|
.on('error', error => log.error(error.message));
|
|
}
|
|
|
|
static getFileThumbnail(filename) {
|
|
const ext = path.extname(filename).toLowerCase();
|
|
if (!imageExtensions.includes(ext) && !videoExtensions.includes(ext)) return null;
|
|
return `${filename.slice(0, -ext.length)}.png`;
|
|
}
|
|
|
|
static constructFilePublicLink(file) {
|
|
/*
|
|
TODO: This wont work without a reverse proxy serving both
|
|
the site and the API under the same domain. Pls fix.
|
|
*/
|
|
file.url = `${process.env.DOMAIN}/${file.name}`;
|
|
const thumb = this.getFileThumbnail(file.name);
|
|
if (thumb) {
|
|
file.thumb = `${process.env.DOMAIN}/thumbs/${thumb}`;
|
|
file.thumbSquare = `${process.env.DOMAIN}/thumbs/square/${thumb}`;
|
|
}
|
|
return file;
|
|
}
|
|
|
|
static getUniqueFilename(name) {
|
|
const retry = (i = 0) => {
|
|
const filename = randomstring.generate({
|
|
length: parseInt(process.env.GENERATED_FILENAME_LENGTH, 10),
|
|
capitalization: 'lowercase'
|
|
}) + path.extname(name).toLowerCase();
|
|
const exists = jetpack.exists(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, filename));
|
|
if (!exists) return filename;
|
|
if (i < 5) return retry(i + 1);
|
|
log.error('Couldnt allocate identifier for file');
|
|
return null;
|
|
};
|
|
return retry();
|
|
}
|
|
|
|
static getUniqueAlbumIdentifier() {
|
|
const retry = async (i = 0) => {
|
|
const identifier = randomstring.generate({
|
|
length: parseInt(process.env.GENERATED_ALBUM_LENGTH, 10),
|
|
capitalization: 'lowercase'
|
|
});
|
|
const exists = await db.table('links').where({ identifier }).first();
|
|
if (!exists) return identifier;
|
|
/*
|
|
It's funny but if you do i++ the asignment never gets done resulting in an infinite loop
|
|
*/
|
|
if (i < 5) return retry(i + 1);
|
|
log.error('Couldnt allocate identifier for album');
|
|
return null;
|
|
};
|
|
return retry();
|
|
}
|
|
|
|
static async getFileHash(filename) {
|
|
const file = await jetpack.readAsync(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, filename), 'buffer');
|
|
if (!file) {
|
|
log.error(`There was an error reading the file < ${filename} > for hashing`);
|
|
return null;
|
|
}
|
|
|
|
const hash = crypto.createHash('md5');
|
|
hash.update(file, 'utf8');
|
|
return hash.digest('hex');
|
|
}
|
|
|
|
static getFilenameFromPath(fullPath) {
|
|
return fullPath.replace(/^.*[\\\/]/, ''); // eslint-disable-line no-useless-escape
|
|
}
|
|
|
|
static async deleteFile(filename, deleteFromDB = false) {
|
|
const thumbName = this.getFileThumbnail(filename);
|
|
try {
|
|
await jetpack.removeAsync(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, filename));
|
|
await jetpack.removeAsync(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, 'thumbs', thumbName));
|
|
await jetpack.removeAsync(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, 'thumbs', 'square', thumbName));
|
|
if (deleteFromDB) {
|
|
await db.table('files').where('name', filename).delete();
|
|
}
|
|
} catch (error) {
|
|
log.error(`There was an error removing the file < ${filename} >`);
|
|
log.error(error);
|
|
}
|
|
}
|
|
|
|
static async deleteAllFilesFromAlbum(id) {
|
|
try {
|
|
const files = await db.table('files').where({ albumId: id });
|
|
for (const file of files) {
|
|
await jetpack.removeAsync(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, file));
|
|
}
|
|
await db.table('files').where({ albumId: id }).delete();
|
|
} catch (error) {
|
|
log.error(error);
|
|
}
|
|
}
|
|
|
|
static async deleteAllFilesFromUser(id) {
|
|
try {
|
|
const files = await db.table('files').where({ userId: id });
|
|
for (const file of files) {
|
|
await jetpack.removeAsync(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, file));
|
|
}
|
|
await db.table('files').where({ userId: id }).delete();
|
|
} catch (error) {
|
|
log.error(error);
|
|
}
|
|
}
|
|
|
|
static isAuthorized(req) {
|
|
if (!req.headers.authorization) return false;
|
|
const token = req.headers.authorization.split(' ')[1];
|
|
if (!token) return false;
|
|
|
|
return JWT.verify(token, process.env.SECRET, async (error, decoded) => {
|
|
if (error) {
|
|
log.error(error);
|
|
return false;
|
|
}
|
|
const id = decoded ? decoded.sub : '';
|
|
const iat = decoded ? decoded.iat : '';
|
|
|
|
const user = await db.table('users').where({ id }).first();
|
|
if (!user || !user.enabled) return false;
|
|
if (iat && iat < moment(user.passwordEditedAt).format('x')) return false;
|
|
|
|
return user;
|
|
});
|
|
}
|
|
|
|
static createZip(files, album) {
|
|
try {
|
|
const zip = new Zip();
|
|
for (const file of files) {
|
|
zip.addLocalFile(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, file));
|
|
}
|
|
zip.writeZip(path.join(__dirname, '..', '..', '..', process.env.UPLOAD_FOLDER, 'zips', `${album.userId}-${album.id}.zip`));
|
|
} catch (error) {
|
|
log.error(error);
|
|
}
|
|
}
|
|
}
|
|
|
|
module.exports = Util;
|