Aws Controller - uploadToAws - wrong extensions

[karl-thomas]

The method to determine the extension of a file is incorrect in the Aws controller.
Currently it looks at the mimetype, takes whatever text is in the mimetype and puts that as the file extension.

  let pattern = /\.[0-9a-z]+$/i;
  let foundFileExt = fileName.match(pattern);
  if (!foundFileExt) {
    // Get the file extension from the mimetype
    let fileExt = file.mimetype.substr(file.mimetype.indexOf('/') + 1);

    // Add to the fileName
    fileName += `.${fileExt}`;
  }

this is incorrect, as many mimetypes are not proper file extensions, and if we set a default for the mimetypes, like many projects do for videos, than it will not be correct at all. For example, we upload a video on Iphone, it's probably a quicktime video, then we set a default mimetype of mp4. Quicktime videos Dont stream on Android, and now we don't know why the video wont work because it's labeled as an mp4.