90 lines
2.3 KiB
JavaScript
90 lines
2.3 KiB
JavaScript
import multer from "multer";
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import crypto from "crypto";
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import path from "path";
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import fs from "fs";
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import response from "../response.js";
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const memoryStorage = multer.memoryStorage();
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const fileFilter = (req, file, cb) => {
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const ext = path.extname(file.originalname).toLowerCase();
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if (ext === ".png" || ext === ".jpg" || ext === ".jpeg") {
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cb(null, true);
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} else {
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cb(
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new Error(
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"Invalid file type, only .png, .jpg, and .jpeg files are allowed!"
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),
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false
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);
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}
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};
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const upload = multer({
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storage: memoryStorage,
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fileFilter,
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limits: { fileSize: 5 * 1024 * 1024 },
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}).fields([{ name: "THUMBNAIL", maxCount: 1 }]);
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const handleUpload = (req, res, next) => {
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upload(req, res, (err) => {
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if (err) {
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return response(400, null, err.message, res);
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}
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const files = req.files;
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const THUMBNAIL = files?.THUMBNAIL ? files.THUMBNAIL[0] : null;
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try {
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let validFiles = true;
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let errorMessages = [];
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if (THUMBNAIL && THUMBNAIL.size > 5 * 1024 * 1024) {
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validFiles = false;
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THUMBNAIL.buffer = null;
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errorMessages.push("Thumbnail file exceeds the size limit of 5MB");
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}
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if (validFiles) {
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req.filesToSave = { THUMBNAIL };
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next();
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} else {
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clearFileBuffers({ THUMBNAIL });
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return response(400, null, errorMessages.join(", "), res);
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}
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} catch (error) {
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console.log(error);
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clearFileBuffers({ THUMBNAIL });
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return response(500, null, "Internal Server Error", res);
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}
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});
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};
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export const clearFileBuffers = (files) => {
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for (const file of Object.values(files)) {
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if (file && file.buffer) {
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file.buffer = null;
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}
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}
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};
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export const saveFileToDisk = (file, fieldName, idSection) => {
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const ext = path.extname(file.originalname);
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const hash = crypto
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.createHash("md5")
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.update(file.originalname + file.buffer.length.toString())
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.digest("hex");
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const filename = `${fieldName}-${idSection}-${hash}${ext}`;
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const folderPath = path.join("media/uploads/section");
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if (!fs.existsSync(folderPath)) {
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fs.mkdirSync(folderPath, { recursive: true });
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}
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const filepath = path.join(folderPath, filename);
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fs.writeFileSync(filepath, file.buffer);
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return filename;
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};
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export default handleUpload;
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