Image rotation on input type="file"

You should take a look at the modern javascript library JavaScript-Load-Image that has already a complete solution to the EXIF orientation included the auto-fix.

You could use the image scaling (.scale() method) to convert the image to the canvas and fix your image orientation.

Take a look to Fix image orientation with Javascript.

Here is another interesting lib : react-exif-orientation-img

Here the adaptation of the solution @German Plebani menitioned in comments for your needs:

import React, {Component} from "react";
import FileUploader from "react-firebase-file-uploader";
import exif from 'exif-js';

function readFile(file) {
  return new Promise(resolve => {
    var reader = new FileReader();
    reader.onload = e => resolve(e.target.result);
    reader.readAsDataURL(file);
  });
};

function createImage(data) {
  return new Promise(resolve => {
    const img = document.createElement('img');
    img.onload = () => resolve(img);
    img.src = data;
  })
}

function rotate(type, img) {
  return new Promise(resolve => {
    const canvas = document.createElement('canvas');

    exif.getData(img, function () {
      var orientation = exif.getAllTags(this).Orientation;

      if ([5, 6, 7, 8].indexOf(orientation) > -1) {
        canvas.width = img.height;
        canvas.height = img.width;
      } else {
        canvas.width = img.width;
        canvas.height = img.height;
      }

      var ctx = canvas.getContext("2d");

      switch (orientation) {
        case 2:
          ctx.transform(-1, 0, 0, 1, img.width, 0);
          break;
        case 3:
          ctx.transform(-1, 0, 0, -1, img.width, img.height);
          break;
        case 4:
          ctx.transform(1, 0, 0, -1, 0, img.height);
          break;
        case 5:
          ctx.transform(0, 1, 1, 0, 0, 0);
          break;
        case 6:
          ctx.transform(0, 1, -1, 0, img.height, 0);
          break;
        case 7:
          ctx.transform(0, -1, -1, 0, img.height, img.width);
          break;
        case 8:
          ctx.transform(0, -1, 1, 0, 0, img.width);
          break;
        default:
          ctx.transform(1, 0, 0, 1, 0, 0);
      }

      ctx.drawImage(img, 0, 0, img.width, img.height);
      ctx.toBlob(resolve, type);
    });
  })
}


class OrientationAwareFirebaseImageUploader extends Component {
  handleChange = (event) => {
    event.target.files.forEach(
      file => readFile(file)
        .then(createImage)
        .then(rotate.bind(undefined, file.type))
        .then(blob => {
          blob.name = file.name;
          this.uploader.startUpload(blob);
        })
    );
  }

  render() {
    return (
      <FileUploader
        {...this.props}
        ref={ref => this.uploader = ref}
        onChange={this.handleChange}
        accept="image/*"
      />
    );
  }
}

export default OrientationAwareFirebaseImageUploader;