uppy/lib/uppy-base/src/utils/dataURItoFile.js

Almost as cute as a Puppy :dog:

'use strict';

function dataURItoBlob(dataURI, opts, toFile) {
  // get the base64 data
  var data = dataURI.split(',')[1];

  // user may provide mime type, if not get it from data URI
  var mimeType = opts.mimeType || dataURI.split(',')[0].split(':')[1].split(';')[0];

  // default to plain/text if data URI has no mimeType
  if (mimeType == null) {
    mimeType = 'plain/text';
  }

  var binary = atob(data);
  var array = [];
  for (var i = 0; i < binary.length; i++) {
    array.push(binary.charCodeAt(i));
  }

  // Convert to a File?
  if (toFile) {
    return new File([new Uint8Array(array)], opts.name || '', { type: mimeType });
  }

  return new Blob([new Uint8Array(array)], { type: mimeType });
}

module.exports = function (dataURI, opts) {
  return dataURItoBlob(dataURI, opts, true);
};
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