subnub
396 lines
13 KiB
TypeScript
396 lines
13 KiB
TypeScript
import { Response, Request } from "express";
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import ChunkInterface from "./utils/ChunkInterface";
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import { UserInterface } from "../../models/user";
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import NotAuthorizedError from "../../utils/NotAuthorizedError";
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import NotFoundError from "../../utils/NotFoundError";
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import crypto from "crypto";
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import getBusboyData from "./utils/getBusboyData";
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import videoChecker from "../../utils/videoChecker";
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import fs from "fs";
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import uuid from "uuid";
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import awaitUploadStreamFS from "./utils/awaitUploadStreamFS";
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import File, { FileInterface } from "../../models/file";
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import getFileSize from "./utils/getFileSize";
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import DbUtilFile from "../../db/utils/fileUtils/index";
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import awaitStream from "./utils/awaitStream";
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import createThumbnailFS from "./utils/createThumbnailFS";
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import imageChecker from "../../utils/imageChecker";
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import Thumbnail, {ThumbnailInterface} from "../../models/thumbnail";
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import streamToBuffer from "../../utils/streamToBuffer";
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import User from "../../models/user";
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import env from "../../enviroment/env";
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import removeChunksFS from "./utils/removeChunksFS";
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import getPrevIVFS from "./utils/getPrevIVFS";
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import awaitStreamVideo from "./utils/awaitStreamVideo";
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import fixStartChunkLength from "./utils/fixStartChunkLength";
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import Folder from "../../models/folder";
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const dbUtilsFile = new DbUtilFile();
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class FileSystemService implements ChunkInterface {
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constructor() {
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}
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uploadFile = async(user: UserInterface, busboy: any, req: Request) => {
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const password = user.getEncryptionKey();
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if (!password) throw new NotAuthorizedError("Invalid Encryption Key")
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const initVect = crypto.randomBytes(16);
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const CIPHER_KEY = crypto.createHash('sha256').update(password).digest()
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const cipher = crypto.createCipheriv('aes256', CIPHER_KEY, initVect);
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const {file, filename, formData} = await getBusboyData(busboy);
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const parent = formData.get("parent") || "/"
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const parentList = formData.get("parentList") || "/";
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const size = formData.get("size") || ""
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let hasThumbnail = false;
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let thumbnailID = ""
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const isVideo = videoChecker(filename)
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const systemFileName = uuid.v4();
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const metadata = {
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owner: user._id,
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parent,
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parentList,
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hasThumbnail,
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thumbnailID,
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isVideo,
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size,
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IV: initVect,
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filePath: env.fsDirectory + systemFileName
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}
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const fileWriteStream = fs.createWriteStream(metadata.filePath);
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const totalStreamsToErrorCatch = [file, cipher, fileWriteStream];
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await awaitUploadStreamFS(file.pipe(cipher), fileWriteStream, req, metadata.filePath, totalStreamsToErrorCatch);
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const date = new Date();
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const encryptedFileSize = await getFileSize(metadata.filePath);
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const currentFile = new File({
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filename,
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uploadDate: date.toISOString(),
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length: encryptedFileSize,
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metadata
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});
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await currentFile.save();
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console.log(currentFile);
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const imageCheck = imageChecker(currentFile.filename);
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if (currentFile.length < 15728640 && imageCheck) {
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const updatedFile = await createThumbnailFS(currentFile, filename, user);
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return updatedFile;
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} else {
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return currentFile;
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}
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}
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downloadFile = async(user: UserInterface, fileID: string, res: Response) => {
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const currentFile: FileInterface = await dbUtilsFile.getFileInfo(fileID, user._id);
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if (!currentFile) throw new NotFoundError("Download File Not Found");
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const password = user.getEncryptionKey();
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if (!password) throw new NotAuthorizedError("Invalid Encryption Key")
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const filePath = currentFile.metadata.filePath!;
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const IV = currentFile.metadata.IV.buffer as Buffer;
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const readStream = fs.createReadStream(filePath);
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const CIPHER_KEY = crypto.createHash('sha256').update(password).digest()
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const decipher = crypto.createDecipheriv('aes256', CIPHER_KEY, IV);
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res.set('Content-Type', 'binary/octet-stream');
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res.set('Content-Disposition', 'attachment; filename="' + currentFile.filename + '"');
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res.set('Content-Length', currentFile.metadata.size.toString());
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const allStreamsToErrorCatch = [readStream, decipher];
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await awaitStream(readStream.pipe(decipher), res, allStreamsToErrorCatch);
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}
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getThumbnail = async(user: UserInterface, id: string) => {
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const password = user.getEncryptionKey();
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if (!password) throw new NotAuthorizedError("Invalid Encryption Key")
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const thumbnail = await Thumbnail.findById(id) as ThumbnailInterface;
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if (thumbnail.owner !== user._id.toString()) {
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throw new NotAuthorizedError('Thumbnail Unauthorized Error');
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}
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const iv = thumbnail.IV!;
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const CIPHER_KEY = crypto.createHash('sha256').update(password).digest()
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const decipher = crypto.createDecipheriv("aes256", CIPHER_KEY, iv);
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const readStream = fs.createReadStream(thumbnail.path!);
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const allStreamsToErrorCatch = [readStream, decipher];
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const bufferData = await streamToBuffer(readStream.pipe(decipher), allStreamsToErrorCatch);
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return bufferData;
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}
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getFullThumbnail = async(user: UserInterface, fileID: string, res: Response) => {
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const userID = user._id;
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const file: FileInterface = await dbUtilsFile.getFileInfo(fileID, userID);
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if (!file) throw new NotFoundError("File Thumbnail Not Found");
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const password = user.getEncryptionKey();
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const IV = file.metadata.IV.buffer as Buffer;
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if (!password) throw new NotAuthorizedError("Invalid Encryption Key")
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const readStream = fs.createReadStream(file.metadata.filePath!);
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const CIPHER_KEY = crypto.createHash('sha256').update(password).digest()
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const decipher = crypto.createDecipheriv('aes256', CIPHER_KEY, IV);
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res.set('Content-Type', 'binary/octet-stream');
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res.set('Content-Disposition', 'attachment; filename="' + file.filename + '"');
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res.set('Content-Length', file.metadata.size.toString());
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const allStreamsToErrorCatch = [readStream, decipher];
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console.log("Sending Full Thumbnail...")
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await awaitStream(readStream.pipe(decipher), res, allStreamsToErrorCatch);
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console.log("Full thumbnail sent");
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}
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streamVideo = async(user: UserInterface, fileID: string, headers: any, res: Response, req: Request) => {
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const userID = user._id;
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const currentFile: FileInterface = await dbUtilsFile.getFileInfo(fileID, userID);
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if (!currentFile) throw new NotFoundError("Video File Not Found");
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const password = user.getEncryptionKey();
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if (!password) throw new NotAuthorizedError("Invalid Encryption Key")
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const fileSize = currentFile.metadata.size;
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const range = headers.range
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const parts = range.replace(/bytes=/, "").split("-")
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let start = parseInt(parts[0], 10)
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let end = parts[1]
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? parseInt(parts[1], 10)
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: fileSize-1
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const IV = currentFile.metadata.IV.buffer as Buffer;
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const chunksize = (end-start)+1
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let head = {
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'Content-Range': 'bytes ' + start + '-' + end + '/' + fileSize,
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'Accept-Ranges': 'bytes',
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'Content-Length': chunksize,
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'Content-Type': 'video/mp4'}
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let currentIV = IV;
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let fixedStart = start % 16 === 0 ? start : fixStartChunkLength(start);
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if (+start === 0) {
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fixedStart = 0;
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}
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const fixedEnd = currentFile.length;
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const differenceStart = start - fixedStart;
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if (fixedStart !== 0 && start !== 0) {
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currentIV = await getPrevIVFS(fixedStart - 16, currentFile.metadata.filePath!) as Buffer;
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}
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const readStream = fs.createReadStream(currentFile.metadata.filePath!, {
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start: fixedStart,
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end: fixedEnd,
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});
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const CIPHER_KEY = crypto.createHash('sha256').update(password).digest()
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const decipher = crypto.createDecipheriv('aes256', CIPHER_KEY, currentIV);
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decipher.setAutoPadding(false);
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res.writeHead(206, head);
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const allStreamsToErrorCatch = [readStream, decipher];
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readStream.pipe(decipher);
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req.on("close", () => {
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// console.log("req closed");
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readStream.destroy();
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})
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const tempUUID = req.params.uuid;
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await awaitStreamVideo(start, end, differenceStart, decipher, res, tempUUID, allStreamsToErrorCatch);
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}
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getPublicDownload = async(fileID: string, tempToken: any, res: Response) => {
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const file: FileInterface = await dbUtilsFile.getPublicFile(fileID);
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if (!file || !file.metadata.link || file.metadata.link !== tempToken) {
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throw new NotAuthorizedError("File Not Public");
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}
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const user = await User.findById(file.metadata.owner) as UserInterface;
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const password = user.getEncryptionKey();
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if (!password) throw new NotAuthorizedError("Invalid Encryption Key");
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const IV = file.metadata.IV.buffer as Buffer;
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const readStream = fs.createReadStream(file.metadata.filePath!);
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const CIPHER_KEY = crypto.createHash('sha256').update(password).digest()
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const decipher = crypto.createDecipheriv('aes256', CIPHER_KEY, IV);
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res.set('Content-Type', 'binary/octet-stream');
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res.set('Content-Disposition', 'attachment; filename="' + file.filename + '"');
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res.set('Content-Length', file.metadata.size.toString());
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const allStreamsToErrorCatch = [readStream, decipher];
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await awaitStream(readStream.pipe(decipher), res, allStreamsToErrorCatch);
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if (file.metadata.linkType === "one") {
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console.log("removing public link");
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await dbUtilsFile.removeOneTimePublicLink(fileID);
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}
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}
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deleteFile = async(userID: string, fileID: string) => {
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const file: FileInterface = await dbUtilsFile.getFileInfo(fileID, userID);
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if (!file) throw new NotFoundError("Delete File Not Found Error");
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if (file.metadata.thumbnailID) {
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const thumbnail = await Thumbnail.findById(file.metadata.thumbnailID) as ThumbnailInterface;
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const thumbnailPath = thumbnail.path!;
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await removeChunksFS(thumbnailPath);
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await Thumbnail.deleteOne({_id: file.metadata.thumbnailID});
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}
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await removeChunksFS(file.metadata.filePath!);
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await File.deleteOne({_id: file._id});
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}
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deleteFolder = async(userID: string, folderID: string, parentList: string[]) => {
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const parentListString = parentList.toString()
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await Folder.deleteMany({"owner": userID, "parentList": { $all: parentList}})
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await Folder.deleteMany({"owner": userID, "_id": folderID});
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const fileList = await dbUtilsFile.getFileListByParent(userID, parentListString);
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if (!fileList) throw new NotFoundError("Delete File List Not Found");
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for (let i = 0; i < fileList.length; i++) {
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const currentFile = fileList[i];
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try {
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if (currentFile.metadata.thumbnailID) {
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const thumbnail = await Thumbnail.findById(currentFile.metadata.thumbnailID) as ThumbnailInterface;
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const thumbnailPath = thumbnail.path!;
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await removeChunksFS(thumbnailPath);
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await Thumbnail.deleteOne({_id: currentFile.metadata.thumbnailID});
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}
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await removeChunksFS(currentFile.metadata.filePath!);
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await File.deleteOne({_id: currentFile._id});
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} catch (e) {
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console.log("Could not delete file", currentFile.filename, currentFile._id);
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}
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}
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}
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deleteAll = async(userID: string) => {
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console.log("remove all request")
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await Folder.deleteMany({"owner": userID});
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const fileList = await dbUtilsFile.getFileListByOwner(userID);
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if (!fileList) throw new NotFoundError("Delete All File List Not Found Error");
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for (let i = 0; i < fileList.length; i++) {
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const currentFile = fileList[i];
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try {
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if (currentFile.metadata.thumbnailID) {
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const thumbnail = await Thumbnail.findById(currentFile.metadata.thumbnailID) as ThumbnailInterface;
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const thumbnailPath = thumbnail.path!;
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await removeChunksFS(thumbnailPath);
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await Thumbnail.deleteOne({_id: currentFile.metadata.thumbnailID});
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}
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await removeChunksFS(currentFile.metadata.filePath!);
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await File.deleteOne({_id: currentFile._id});
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} catch (e) {
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console.log("Could Not Remove File", currentFile.filename, currentFile._id);
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}
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}
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}
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}
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export default FileSystemService; |