48 lines
1.3 KiB
JavaScript
48 lines
1.3 KiB
JavaScript
const multer = require('multer');
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const path = require('path');
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const fs = require('fs');
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// Ensure uploads directory exists
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const uploadDir = path.join(__dirname, '../public/uploads/responses');
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if (!fs.existsSync(uploadDir)) {
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fs.mkdirSync(uploadDir, { recursive: true });
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}
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// Configure storage
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const storage = multer.diskStorage({
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destination: (req, file, cb) => {
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cb(null, uploadDir);
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},
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filename: (req, file, cb) => {
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// Generate unique filename: timestamp-random-originalname
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const uniqueSuffix = Date.now() + '-' + Math.round(Math.random() * 1E9);
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const ext = path.extname(file.originalname);
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const basename = path.basename(file.originalname, ext);
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cb(null, `response-${uniqueSuffix}${ext}`);
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}
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});
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// File filter - only images
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const fileFilter = (req, file, cb) => {
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const allowedTypes = /jpeg|jpg|png|gif|webp/;
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const extname = allowedTypes.test(path.extname(file.originalname).toLowerCase());
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const mimetype = allowedTypes.test(file.mimetype);
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if (mimetype && extname) {
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return cb(null, true);
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} else {
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cb(new Error('Only image files (JPEG, PNG, GIF, WebP) are allowed'));
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}
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};
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// Configure multer
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const upload = multer({
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storage: storage,
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limits: {
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fileSize: 5 * 1024 * 1024 // 5MB max file size
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},
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fileFilter: fileFilter
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});
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module.exports = upload;
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