Files
danbooru/app/logical/upload_service/utils.rb
evazion d5981754c4 posts: automatically tag animated_gif & animated_png on tag edit.
Automatically tag animated_gif and animated_png when a post is edited.
Add them back if the user tries to remove them from an animated post,
or remove them if the user tries to add them to a non-animated post.

Before we added these tags at upload time, but it was possible for users
to remove them after upload, or to incorrectly add them to non-animated
posts. They were added at upload time because we couldn't afford to open
the file and parse the metadata on every tag edit. Now that we save the
metadata in the database, we can do this.

This also makes it so you can't tag ugoira on non-ugoira files.

Known bug: it's possible to have an animated GIF where every frame is
identical. Post #3770975 is an example. This will be detected as an
animated GIF even though visually it doesn't appear to be animated.

Fixes #4041: Animated_gif tag not added to preprocessed uploads
2021-09-21 08:26:02 -05:00

97 lines
3.3 KiB
Ruby

class UploadService
module Utils
module_function
def distribute_files(file, record, type, original_post_id: nil)
# need to do this for hybrid storage manager
post = Post.new
post.id = original_post_id if original_post_id.present?
post.md5 = record.md5
post.file_ext = record.file_ext
[Danbooru.config.storage_manager, Danbooru.config.backup_storage_manager].each do |sm|
sm.store_file(file, post, type)
end
end
def is_downloadable?(source)
source =~ %r{\Ahttps?://}
end
def generate_resizes(media_file)
preview_file = media_file.preview(Danbooru.config.small_image_width, Danbooru.config.small_image_width)
crop_file = media_file.crop(Danbooru.config.small_image_width, Danbooru.config.small_image_width)
if media_file.is_ugoira?
sample_file = media_file.convert
elsif media_file.is_image? && media_file.width > Danbooru.config.large_image_width
sample_file = media_file.preview(Danbooru.config.large_image_width, media_file.height)
else
sample_file = nil
end
[preview_file, crop_file, sample_file]
end
def process_resizes(upload, file, original_post_id, media_file: nil)
media_file ||= upload.media_file
preview_file, crop_file, sample_file = Utils.generate_resizes(media_file)
begin
Utils.distribute_files(file, upload, :original, original_post_id: original_post_id) if file.present?
Utils.distribute_files(sample_file, upload, :large, original_post_id: original_post_id) if sample_file.present?
Utils.distribute_files(preview_file, upload, :preview, original_post_id: original_post_id) if preview_file.present?
Utils.distribute_files(crop_file, upload, :crop, original_post_id: original_post_id) if crop_file.present?
ensure
preview_file.try(:close!)
crop_file.try(:close!)
sample_file.try(:close!)
end
end
def process_file(upload, file, original_post_id: nil)
upload.file = file
media_file = upload.media_file
upload.file_ext = media_file.file_ext.to_s
upload.file_size = media_file.file_size
upload.md5 = media_file.md5
upload.image_width = media_file.width
upload.image_height = media_file.height
upload.validate!(:file)
upload.tag_string = "#{upload.tag_string} #{Utils.automatic_tags(media_file)}"
process_resizes(upload, file, original_post_id)
MediaAsset.create!(file: media_file)
end
def automatic_tags(media_file)
tags = []
tags << "sound" if media_file.has_audio?
tags.join(" ")
end
def get_file_for_upload(upload, file: nil)
return file if file.present?
raise "No file or source URL provided" if upload.source_url.blank?
strategy = Sources::Strategies.find(upload.source_url, upload.referer_url)
raise NotImplementedError, "No login credentials configured for #{strategy.site_name}." unless strategy.class.enabled?
file = strategy.download_file!
if strategy.data[:ugoira_frame_data].present?
upload.context = {
"ugoira" => {
"frame_data" => strategy.data[:ugoira_frame_data],
"content_type" => "image/jpeg"
}
}
end
file
end
end
end