ruby-on-rails - Rails ActiveStorage strip 图像 EXIF 数据

Question

有没有一种简单的方法可以去除每张图片上传中的所有 EXIF 数据？也许在 before_save Hook 中？

Answer 1

根据 iGian 的评论，我最终得到了这段代码:

before_save :strip_exif_data

private

def strip_exif_data
  return unless image.attached?
  filename = image.filename.to_s
  attachment_path = "#{Dir.tmpdir}/#{image.filename}"
  File.open(attachment_path, 'wb') do |file|
    file.write(image.download)
    file.close
  end
  mm_image = MiniMagick::Image.open(attachment_path)
  mm_image.strip
  mm_image.write attachment_path
  image.attach(io: File.open(attachment_path), filename: filename)
end