Question

我有下面的代码。我想使用multer仅接受MIME类型为docx的文档。否则，我想产生一个错误。我也计划在前端进行审核，但出于安全考虑，也希望在此处进行审核。以下代码返回错误，有人可以告诉我我错了吗？

const multer = require('multer')
const fs = require('fs')

const upload = multer({
  dest: './upload',
  fileFilter: function (req, file, cb) {
      if (req.file.mimetype != 'application/vnd.openxmlformats-officedocument.wordprocessingml.document') {
          return cb(new Error('Wrong file type'))
      }
      cb(null,true)
  }
}).single('file');

app.post('/upload', upload, function(req, res) {

  console.log(req.file);
};

Answer 1

当我使用const request = require('request'); request('https://lc-txtconnect5.globe.com.ph/inbox?token=3a64892d865cd4e386b161767245fa0afc808c63957a7e495f65829a56b96b03&txtid=51talk', { json: true }, (err, res, body) => { if (err) { return console.log(err); } var messages = body.response.response; console.log(messages); messages.forEach(function(messages) { var tblmessage = messages.message; console.log(tblmessage); }); });而不是file.mimetype时，它对我有用。

req.file.mimetype

希望有帮助。

Answer 2

You can try following code snippet to accept only file type of docx :

 const filefilter = (req, file, cb) => {
    if (
      file.mimetype === "application/msword" ||
      file.mimetype ===            
      "application/vnd.openxmlformatsofficedocument.wordprocessingml.document"
    ) {
      cb(null, true);
    } else {
      cb(null, false);
    }
  };

基于MIME类型的Multer文件过滤

2 个答案: