subnub
291 lines
10 KiB
TypeScript
291 lines
10 KiB
TypeScript
import mongoose from "../../db/mongoose";
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import { Response, Request } from "express";
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const conn = mongoose.connection;
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const DbUtilFolder = require("../../db/utils/folderUtils");
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import DbUtilFile from "../../db/utils/fileUtils";
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import crypto from "crypto";
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import videoChecker from "../../utils/videoChecker"
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import imageChecker from "../../utils/imageChecker"
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import { ObjectID } from "mongodb";
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import createThumbnail from "../FileService/utils/createThumbnail";
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import Thumbnail, {ThumbnailInterface} from "../../models/thumbnail";
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import NotAuthorizedError from "../../utils/NotAuthorizedError";
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import InternalServerError from "../../utils/InternalServerError";
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import NotFoundError from "../../utils/NotFoundError";
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import {GridFSBucketWriteStream} from "mongodb";
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import awaitStream from "./utils/awaitStream";
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import awaitUploadStream from "./utils/awaitUploadStream";
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import User, { UserInterface } from "../../models/user";
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import { FileInterface } from "../../models/file";
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import { Stream } from "stream";
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import removeChunks from "../FileService/utils/removeChunks";
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import getBusboyData from "./utils/getBusboyData";
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import ChunkInterface from "./utils/ChunkInterface";
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const dbUtilsFile = new DbUtilFile();
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const dbUtilsFolder = new DbUtilFolder();
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class MongoService 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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let bucketStream: GridFSBucketWriteStream;
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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 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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}
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let bucket = new mongoose.mongo.GridFSBucket(conn.db);
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bucketStream = bucket.openUploadStream(filename, {metadata});
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const allStreamsToErrorCatch = [file, cipher, bucketStream];
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const finishedFile = await awaitUploadStream(file.pipe(cipher), bucketStream, req, allStreamsToErrorCatch) as FileInterface;
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const imageCheck = imageChecker(filename);
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if (finishedFile.length < 15728640 && imageCheck) {
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const updatedFile = await createThumbnail(finishedFile, filename, user);
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return updatedFile;
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} else {
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return finishedFile;
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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 = 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 bucket = new mongoose.mongo.GridFSBucket(conn.db);
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const IV = currentFile.metadata.IV.buffer
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const readStream = bucket.openDownloadStream(new ObjectID(fileID));
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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.data.slice(0, 16);
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const chunk = thumbnail.data.slice(16);
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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 decryptedThumbnail = Buffer.concat([decipher.update(chunk), decipher.final()]);
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return decryptedThumbnail;
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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 = await dbUtilsFile.getFileInfo(fileID, userID);
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if (!file) throw new NotFoundError("File Thumbnail Not Found");
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const bucket = new mongoose.mongo.GridFSBucket(conn.db);
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const password = user.getEncryptionKey();
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const IV = file.metadata.IV.buffer
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if (!password) throw new NotAuthorizedError("Invalid Encryption Key")
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const readStream = bucket.openDownloadStream(new ObjectID(fileID))
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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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console.log("Sending Full Thumbnail...")
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const allStreamsToErrorCatch = [readStream, decipher];
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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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getPublicDownload = async(fileID: string, tempToken: any, res: Response) => {
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const file = 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 bucket = new mongoose.mongo.GridFSBucket(conn.db);
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const IV = file.metadata.IV.buffer
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const readStream = bucket.openDownloadStream(new ObjectID(fileID))
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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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streamVideo = async(user: UserInterface, fileID: string, headers: any, res: Response) => {
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const userID = user._id;
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const currentFile = 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 chunksize = (end-start)+1
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const IV = currentFile.metadata.IV.buffer
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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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const bucket = new mongoose.mongo.GridFSBucket(conn.db, {
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chunkSizeBytes: 1024
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});
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const readStream = bucket.openDownloadStream(new ObjectID(fileID), {
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start: start,
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end: end
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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, IV);
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res.writeHead(206, head);
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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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deleteFile = async(userID: string, fileID: string) => {
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let bucket = new mongoose.mongo.GridFSBucket(conn.db, {
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chunkSizeBytes: 1024 * 255,
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});
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const file = 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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await Thumbnail.deleteOne({_id: file.metadata.thumbnailID});
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}
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// if (file.metadata.isVideo && file.metadata.transcoded) {
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// try {
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// await bucket.delete(new ObjectID(file.metadata.transcodedID));
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// } catch (e) {
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// console.log("Could Not Find Transcoded Video");
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// }
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// }
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await bucket.delete(new ObjectID(fileID));
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}
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}
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export default MongoService; |