embedder/app/types/multer.ts

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1.9 KiB
TypeScript

import {Request} from "express";
import multer, {FileFilterCallback, MulterError} from "multer";
import {db, MediaRow} from "./db";
import {extension} from "./lib";
export type DestinationCallback = (error: Error | null, destination: string) => void
export type FileNameCallback = (error: Error | null, filename: string) => void
export const fileStorage = multer.diskStorage({
destination: (
request: Request,
file: Express.Multer.File,
callback: DestinationCallback
): void => {
callback(null, __dirname + "/../../uploads");
},
filename: (
request: Request,
file: Express.Multer.File,
callback: FileNameCallback
): void => {
const nameAndExtension = extension(file.originalname);
console.log(`Uploading ${file}`);
try {
console.log("querying")
const query = db.query(`SELECT * FROM media WHERE path = ?`);
const exists = query.all(nameAndExtension[0] + nameAndExtension[1]);
console.log(exists)
if (exists.length !== 0) {
const suffix = (new Date().getTime() / 1000).toString();
const newName = (request.body.title || nameAndExtension[0]) + "-" + suffix + nameAndExtension[1];
callback(null, newName);
console.log("ran callback with suffix")
} else {
const newName = (request.body.title || nameAndExtension[0]) + nameAndExtension[1];
callback(null, newName);
console.log("ran callback")
}
} catch (err: any) {
console.log(err);
callback(err, null);
}
}
});
export const allowedMimeTypes = [
"image/png",
"image/jpg",
"image/jpeg",
"image/gif",
"image/webp",
"video/mp4",
"video/mov",
"video/webm",
"audio/mpeg",
"audio/ogg"
];
export const fileFilter = (
request: Request,
file: Express.Multer.File,
callback: FileFilterCallback
): void => {
if (allowedMimeTypes.includes(file.mimetype)) {
callback(null, true);
} else {
callback(null, false);
}
};