subnub
84 lines
3.0 KiB
TypeScript
84 lines
3.0 KiB
TypeScript
const mongoose = require("../../../db/mongoose")
|
|
const conn = mongoose.connection;
|
|
const crypto= require("crypto");
|
|
const env = require("../../../enviroment/env");
|
|
import Thumbnail from "../../../models/thumbnail";
|
|
const ObjectID = require('mongodb').ObjectID
|
|
const sharp = require("sharp");
|
|
const concat = require("concat-stream")
|
|
import {FileInterface} from "../../../models/file";
|
|
import {UserInterface} from "../../../models/user";
|
|
|
|
const createThumbnail = (file: FileInterface, filename: string, user: UserInterface) => {
|
|
|
|
return new Promise<FileInterface>((resolve) => {
|
|
|
|
const password = user.getEncryptionKey();
|
|
|
|
let CIPHER_KEY = crypto.createHash('sha256').update(password).digest()
|
|
|
|
let bucket = new mongoose.mongo.GridFSBucket(conn.db, {
|
|
chunkSizeBytes: 1024 * 255
|
|
})
|
|
|
|
const readStream = bucket.openDownloadStream(ObjectID(file._id))
|
|
|
|
readStream.on("error", (e: Error) => {
|
|
console.log("File service upload thumbnail error", e);
|
|
resolve(file);
|
|
})
|
|
|
|
const decipher = crypto.createDecipheriv('aes256', CIPHER_KEY, file.metadata.IV);
|
|
|
|
decipher.on("error", (e: Error) => {
|
|
console.log("File service upload thumbnail decipher error", e);
|
|
resolve(file)
|
|
})
|
|
|
|
try {
|
|
|
|
const concatStream = concat(async(bufferData: Buffer) => {
|
|
|
|
const thumbnailIV = crypto.randomBytes(16);
|
|
|
|
const thumbnailCipher = crypto.createCipheriv("aes256", CIPHER_KEY, thumbnailIV);
|
|
|
|
bufferData = Buffer.concat([thumbnailIV, thumbnailCipher.update(bufferData), thumbnailCipher.final()]);
|
|
|
|
const thumbnailModel = new Thumbnail({name: filename, owner: user._id, data: bufferData});
|
|
|
|
await thumbnailModel.save();
|
|
|
|
let updatedFile = await conn.db.collection("fs.files")
|
|
.findOneAndUpdate({"_id": file._id}, {"$set": {"metadata.hasThumbnail": true, "metadata.thumbnailID": thumbnailModel._id}})
|
|
|
|
updatedFile = updatedFile.value;
|
|
|
|
updatedFile = {...updatedFile, metadata: {...updatedFile.metadata, hasThumbnail: true, thumbnailID: thumbnailModel._id}}
|
|
|
|
resolve(updatedFile);
|
|
|
|
}).on("error", (e: Error) => {
|
|
console.log("File service upload concat stream error", e);
|
|
resolve(file);
|
|
})
|
|
|
|
const imageResize = sharp().resize(300).on("error", (e: Error) => {
|
|
|
|
console.log("resize error", e);
|
|
resolve(file);
|
|
})
|
|
|
|
readStream.pipe(decipher).pipe(imageResize).pipe(concatStream);
|
|
|
|
|
|
} catch (e) {
|
|
|
|
console.log(e);
|
|
resolve(file);
|
|
}
|
|
|
|
})
|
|
}
|
|
|
|
export default createThumbnail; |