Cannot create a task with 👀 character in the uploaded filename

[azhavoro]

My actions before raising this issue

• Read/searched the docs
• Searched past issues

Steps to Reproduce (for bugs)

Expected Behaviour

Current Behaviour

Possible Solution

Context

Your Environment

• Git hash commit (git log -1):
• Docker version docker version (e.g. Docker 17.0.05):
• Are you using Docker Swarm or Kubernetes?
• Operating System and version (e.g. Linux, Windows, MacOS):
• Code example or link to GitHub repo or gist to reproduce problem:
• Other diagnostic information / logs:
  Logs from `cvat` container

[AndrewLuGit]

I would like to be assigned this issue

[AndrewLuGit]

The cause of this issue seems to be because of this line in views.py: https://github.com/opencv/cvat/blob/f22322f4349a91bbb645dfcacf1e799d870a6f16/cvat/apps/engine/views.py#L984

When there are characters that are not encodable in latin-1 such as 👀 in the file name, in the response header the file name gets encoded using MIME encoding, and so retrieving the file name from the response header can lead to unexpected results. My proposed solution is to simply decode the file name in the _maybe_append_upload_info_entry method, like so:

def _maybe_append_upload_info_entry(self, filename: str):
    task_data = cast(Data, self._object.data)

    raw, encoding = decode_header(filename)[0]

    if encoding is not None:
        filename = raw.decode(encoding)

    filename = self._prepare_upload_info_entry(filename)
    task_data.client_files.get_or_create(file=filename)

[AndrewLuGit]

@nmanovic am I good to create a PR for this?

[nmanovic]

@AndrewLuGit , please do.

[azhavoro]

Fixed in #7646