subnub
120 lines
3.1 KiB
TypeScript
120 lines
3.1 KiB
TypeScript
import mongoose from "../../../db/mongoose";
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import crypto from "crypto";
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import Thumbnail from "../../../models/thumbnail";
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import sharp from "sharp";
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import { FileInterface } from "../../../models/file";
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import { UserInterface } from "../../../models/user";
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import fs from "fs";
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import uuid from "uuid";
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import env from "../../../enviroment/env";
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import { ObjectId } from "mongodb";
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const conn = mongoose.connection;
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const createThumbnailFS = (
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file: FileInterface,
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filename: string,
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user: UserInterface
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) => {
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return new Promise<FileInterface>((resolve, reject) => {
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const password = user.getEncryptionKey();
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let CIPHER_KEY = crypto.createHash("sha256").update(password!).digest();
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const thumbnailFilename = uuid.v4();
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const readStream = fs.createReadStream(file.metadata.filePath!);
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const writeStream = fs.createWriteStream(
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env.fsDirectory + thumbnailFilename
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);
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const decipher = crypto.createDecipheriv(
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"aes256",
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CIPHER_KEY,
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file.metadata.IV
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);
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readStream.on("error", (e: Error) => {
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console.log("File service upload thumbnail error", e);
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resolve(file);
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});
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writeStream.on("error", (e: Error) => {
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console.log("File service upload write thumbnail error", e);
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resolve(file);
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});
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decipher.on("error", (e: Error) => {
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console.log("File service upload thumbnail decipher error", e);
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resolve(file);
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});
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try {
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const thumbnailIV = crypto.randomBytes(16);
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const thumbnailCipher = crypto.createCipheriv(
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"aes256",
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CIPHER_KEY,
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thumbnailIV
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);
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const imageResize = sharp()
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.resize(300)
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.on("error", (e: Error) => {
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console.log("resize error", e);
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resolve(file);
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});
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readStream
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.pipe(decipher)
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.pipe(imageResize)
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.pipe(thumbnailCipher)
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.pipe(writeStream);
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writeStream.on("finish", async () => {
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const thumbnailModel = new Thumbnail({
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name: filename,
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owner: user._id,
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IV: thumbnailIV,
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path: env.fsDirectory + thumbnailFilename,
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});
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await thumbnailModel.save();
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if (!file._id) {
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return reject();
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}
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const getUpdatedFile = await conn.db
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.collection("fs.files")
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.findOneAndUpdate(
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{ _id: new ObjectId(file._id) },
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{
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$set: {
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"metadata.hasThumbnail": true,
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"metadata.thumbnailID": thumbnailModel._id,
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},
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}
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);
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if (!getUpdatedFile) {
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return reject();
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}
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let updatedFile: FileInterface = getUpdatedFile.value;
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updatedFile = {
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...updatedFile,
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metadata: {
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...updatedFile.metadata,
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hasThumbnail: true,
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thumbnailID: thumbnailModel._id,
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},
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} as FileInterface;
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resolve(updatedFile);
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});
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} catch (e) {
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console.log("Thumbnail error", e);
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resolve(file);
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}
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});
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};
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export default createThumbnailFS;
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