45064853de
* Move image thumbnail generation code to MediaFile::Image. * Move video thumbnail generation code to MediaFile::Video. * Move ugoira->webm conversion code to MediaFile::Ugoira. This separates thumbnail generation from the upload process so that it's possible to generate thumbnails outside of uploads.
125 lines
4.2 KiB
Ruby
125 lines
4.2 KiB
Ruby
class UploadService
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module Utils
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module_function
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def corrupt?(filename)
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image = Vips::Image.new_from_file(filename, fail: true)
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image.stats
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false
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rescue Vips::Error
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true
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end
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def distribute_files(file, record, type, original_post_id: nil)
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# need to do this for hybrid storage manager
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post = Post.new
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post.id = original_post_id if original_post_id.present?
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post.md5 = record.md5
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post.file_ext = record.file_ext
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[Danbooru.config.storage_manager, Danbooru.config.backup_storage_manager].each do |sm|
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sm.store_file(file, post, type)
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end
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end
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def is_downloadable?(source)
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source =~ /^https?:\/\//
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end
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def generate_resizes(media_file)
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preview_file = media_file.preview(Danbooru.config.small_image_width, Danbooru.config.small_image_width)
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crop_file = media_file.crop(Danbooru.config.small_image_width, Danbooru.config.small_image_width)
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if media_file.is_ugoira?
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sample_file = media_file.convert
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elsif media_file.is_image? && media_file.width > Danbooru.config.large_image_width
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sample_file = media_file.preview(Danbooru.config.large_image_width, nil)
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else
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sample_file = nil
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end
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[preview_file, crop_file, sample_file]
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end
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def process_file(upload, file, original_post_id: nil)
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upload.file = file
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media_file = upload.media_file
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upload.file_ext = media_file.file_ext.to_s
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upload.file_size = media_file.file_size
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upload.md5 = media_file.md5
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upload.image_width = media_file.width
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upload.image_height = media_file.height
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upload.validate!(:file)
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upload.tag_string = "#{upload.tag_string} #{Utils.automatic_tags(upload, file)}"
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preview_file, crop_file, sample_file = Utils.generate_resizes(media_file)
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begin
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Utils.distribute_files(file, upload, :original, original_post_id: original_post_id)
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Utils.distribute_files(sample_file, upload, :large, original_post_id: original_post_id) if sample_file.present?
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Utils.distribute_files(preview_file, upload, :preview, original_post_id: original_post_id) if preview_file.present?
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Utils.distribute_files(crop_file, upload, :crop, original_post_id: original_post_id) if crop_file.present?
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ensure
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preview_file.try(:close!)
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crop_file.try(:close!)
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sample_file.try(:close!)
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end
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end
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# these methods are only really used during upload processing even
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# though logically they belong on upload. post can rely on the
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# automatic tag that's added.
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def is_animated_gif?(upload, file)
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return false if upload.file_ext != "gif"
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# Check whether the gif has multiple frames by trying to load the second frame.
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result = Vips::Image.gifload(file.path, page: 1) rescue $ERROR_INFO
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if result.is_a?(Vips::Image)
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true
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elsif result.is_a?(Vips::Error) && result.message =~ /too few frames in GIF file/
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false
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else
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raise result
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end
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end
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def is_animated_png?(upload, file)
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upload.file_ext == "png" && APNGInspector.new(file.path).inspect!.animated?
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end
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def is_video_with_audio?(upload, file)
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return false if !upload.is_video? # avoid ffprobe'ing the file if it's not a video (issue #3826)
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video = FFMPEG::Movie.new(file.path)
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video.audio_channels.present?
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end
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def automatic_tags(upload, file)
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tags = []
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tags << "video_with_sound" if is_video_with_audio?(upload, file)
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tags << "animated_gif" if is_animated_gif?(upload, file)
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tags << "animated_png" if is_animated_png?(upload, file)
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tags.join(" ")
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end
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def get_file_for_upload(upload, file: nil)
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return file if file.present?
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raise "No file or source URL provided" if upload.source_url.blank?
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download = Downloads::File.new(upload.source_url, upload.referer_url)
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file, strategy = download.download!
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if download.data[:ugoira_frame_data].present?
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upload.context = {
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"ugoira" => {
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"frame_data" => download.data[:ugoira_frame_data],
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"content_type" => "image/jpeg"
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}
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}
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end
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return file
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end
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end
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end
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