File corruption on zip uploads

[dolftax]

[DEVELOPMENT]xxx@xxx-tmp:# unzip e4b18df04249047c0f88a0a141956246 
Archive:  e4b18df04249047c0f88a0a141956246
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
note:  e4b18df04249047c0f88a0a141956246 may be a plain executable, not an archive
unzip:  cannot find zipfile directory in one of e4b18df04249047c0f88a0a141956246 or
        e4b18df04249047c0f88a0a141956246.zip, and cannot find e4b18df04249047c0f88a0a141956246.ZIP, period.

Code:

 // Workspace upload
    let multer = require('multer')({
      dest: `${global.config.tmp.root}`
    })

    app.use('/workspace/upload/util', multer.single('file'), function (req, res, next) {
..
..

Let me know if the above could be caught as an error. If yes, how?

Thanks.

[LinusU]

Are you sure that the file you are uploading is a valid zip-file? How are you uploading the file? Can you less the uploaded file and see if it contains any clues as to what went wrong?

[dolftax]

File: Calculator.zip

less foo.zip

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[LinusU]

Is foo.zip here the file after it has been uploaded to multer?

[dolftax]

@LinusU Yes.

[LinusU]

How are you uploading it?

[dolftax]

Using this module in Angular.js - https://github.com/danialfarid/ng-file-upload

 Upload.upload({
              url: $rootScope.baseUrl + 'upload/util',
              data: {file: file}
            }).then(function (resp) {
              console.log('Uploaded workspace')
            })
})

[LinusU]

Could you try uploading it using a simple <form enctype="multipart/form-data" ...> and see if that works?

[dolftax]

@LinusU Same result. Multer 1.3.0

[GNSubrahmanyam]

@LinusU Any updates? Still this issue is happening :-(

[zeroum]

I came here looking for the same problem, but in my particular case the issue was elsewhere:

My Express+Multer NodeJS program is hosted in AWS Lambda, and the request is being delivered through their API Gateway service. That Gateway was the one corrupting the binaries.

Since I use the Serverless Framework tooling, I fixed it by using a plugin(serverless-apigw-binary) to config the correct settings in the service for me.

[pannnnn]

I am having the same issue but the corrupted file is a jpg file. And after a few trials, I think the cause is that inside the callback function, i.e., function(req, res, next) { ...blabla }, it calls res.json/send/end before the image is fully received and saved to disk.

[HarshithaKP]

@jaipradeesh Is this still an issue for you ?. If yes, can you check with the 'Content-Type' which you have specified.

[GNSubrahmanyam]

@jaipradeesh Is this still an issue for you ?. If yes, can you check with the 'Content-Type' which you have specified.

Yes

[ajouve]

I have a similar issue there https://github.com/expressjs/multer/issues/879