can not upload file in iphone

[wd603546401]

As title, in iphone device any browser(safair or UC browers ...) upload file can not be received by multer ,I use wireshark to catch the network request and I found that the browers has send file already ，but at server the mutler plugin can not receive and without any error, why? my email address : wd603546401@gmail.com

[LinusU]

I have not been able to reproduce this. Could you post a minimal test case that shows this problem?

[wd603546401]

I have not been able to reproduce this. Could you post a minimal test case that shows this problem? here is my code: `var express = require('express'); const router = express.Router(); var multer = require('multer'); var fs = require('fs'); var path = require('path'); const log = require(process.cwd() + '/common/log4js.js').log; const conf = require(process.cwd() + '/config/index.js');

const subPathList = ['default', 'idcard', 'logo']; const supportFormts = ['jpg', 'png', 'gif'];

var fileName = ''; var subPath = '';

function getFileSubPath(params) { let index = subPathList.indexOf(params.type); return index > -1 ? subPathList[index] : subPathList[0]; }

function mkdirsSync(dirname) { if (fs.existsSync(dirname)) { return true; } else { if (mkdirsSync(path.dirname(dirname))) { fs.mkdirSync(dirname); return true; } } }

var storage = multer.diskStorage({ destination: function (req, file, cb) { const data = new Date(); let month = data.getMonth() + 1; let date = data.getDate(); month = month < 10 ? 0${month} : month; date = date < 10 ? 0${date} : date; let dataLayer = ${data.getFullYear()}${month}${date}; subPath = ${getFileSubPath(req.body)}/${dataLayer}; const imgpath = path.resolve(conf.uploadroot, subPath); req.session.imgpath = imgpath; try { if (!fs.existsSync(imgpath)) { mkdirsSync(imgpath); } } catch (e) { log.error(e); } cb(null, path.resolve(imgpath)); }, filename: function (req, file, cb) { fileName = Date.now() + '_' + file.originalname; req.session.fileName = fileName; cb(null, fileName); } });

/**

• 文件格式过滤
• @param {*} req
• @param {*} file
• @param {} cb / function fileFilter(req, file, cb) { let suffix = file.originalname.slice(file.originalname.lastIndexOf('.') + 1); if (!suffix || supportFormts.indexOf(suffix.toLowerCase()) === -1) { cb(null, false); return; } cb(null, true) }

var uploadMulter = multer({ storage: storage, fileFilter: fileFilter, limits: { fieldSize: 1024 1024 5, fileSize: 1024 1024 5 } }).single('fileName');

router.post('/', function (req, res, next) { req.session.fileName = ''; // form表单方式提交没问题，but postman失败 uploadMulter(req, res, (err) => { if (err || !req.session.fileName) { log.error(req.session.user.userName, '文件上传失败', err); res.send({ status: 1, msg: '上传失败' }); return; } let fileName = req.session.fileName; log.info(req.session.user.userName, '文件上传成功', subPath + '/' + fileName); res.send({ status: 0, msg: '成功', result: subPath + '/' + fileName }); }); });

module.exports = router; ` I have solved this problem， is ‘fileFilter’ settings,in iphone device the photo format is jpeg and my settings does not include this format,so。。。，but another problem is: why the multer has not throw any error?

[HarshithaKP]

@wd603546401 fileFilter is designed to silently ignore the files which are not supported by the fileFilter function without throwing the error ( which lets the server crash). Since throwing error makes server crash, I guess that is not what you want. If you still want to throw error, you can make use of following code in fileFilter function.

var filefilter = function(req, file, cb){
  let suffix = file.originalname.slice(file.originalname.lastIndexOf('.') + 1)
  if (!suffix || Formats.indexOf(suffix.toLowerCase()) === -1) {
    var err = new Error('File format not supported')
    cb(null, false)
    throw(err)
 }
 cb(null, true)
}