subnub
61 lines
2.9 KiB
JavaScript
61 lines
2.9 KiB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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const mongoose_1 = __importDefault(require("../../db/mongoose"));
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const conn = mongoose_1.default.connection;
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const env = require("../../enviroment/env");
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const DbUtilFolder = require("../../db/utils/folderUtils");
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const index_1 = __importDefault(require("../../db/utils/fileUtils/index"));
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const crypto_1 = __importDefault(require("crypto"));
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const ObjectID = require('mongodb').ObjectID;
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const dbUtilsFile = new index_1.default();
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const dbUtilsFolder = new DbUtilFolder();
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class MongoService {
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constructor() {
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this.downloadFile = (user, fileID, res) => {
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return new Promise((resolve, reject) => {
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dbUtilsFile.getFileInfo(fileID, user._id).then((currentFile) => {
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if (!currentFile) {
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reject({
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code: 401,
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message: "Download File Not Found Error",
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exception: undefined
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});
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}
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else {
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const password = user.getEncryptionKey();
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const bucket = new mongoose_1.default.mongo.GridFSBucket(conn.db);
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const IV = currentFile.metadata.IV.buffer;
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const readStream = bucket.openDownloadStream(ObjectID(fileID));
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readStream.on("error", (e) => {
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reject({
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code: 500,
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message: "File service download decipher error",
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exception: e
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});
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});
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const CIPHER_KEY = crypto_1.default.createHash('sha256').update(password).digest();
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const decipher = crypto_1.default.createDecipheriv('aes256', CIPHER_KEY, IV);
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decipher.on("error", (e) => {
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reject({
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code: 500,
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message: "File service download decipher error",
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exception: e
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});
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});
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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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readStream.pipe(decipher).pipe(res).on("finish", () => {
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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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}
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exports.default = MongoService;
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