Files
danbooru/app/logical/upload_service/preprocessor.rb
evazion bc506ed1b8 uploads: refactor to simplify ugoira-handling and replacements:
* Make it so replacing a post doesn't generate a dummy upload as a side effect.
* Make it so you can't replace a post with itself (the post should be regenerated instead).
* Refactor uploads and replacements to save the ugoira frame data when
  the MediaAsset is created, not when the post is created. This way it's
  possible to view the ugoira before the post is created.
* Make `download_file!` in the Pixiv source strategy return a MediaFile
  with the ugoira frame data already attached to it, instead of returning it
  in the `data` field then passing it around separately in the `context`
  field of the upload.
2021-10-18 05:18:46 -05:00

108 lines
2.6 KiB
Ruby

class UploadService
class Preprocessor
extend Memoist
attr_reader :params, :original_post_id
def initialize(params)
@original_post_id = params.delete(:original_post_id) || -1
@params = params
end
def source
params[:source]
end
def md5
params[:md5_confirmation]
end
def referer_url
params[:referer_url]
end
def strategy
Sources::Strategies.find(source, referer_url)
end
memoize :strategy
# When searching posts we have to use the canonical source
def canonical_source
strategy.canonical_url
end
memoize :canonical_source
def in_progress?
if md5.present?
Upload.exists?(status: "preprocessing", md5: md5)
elsif Utils.is_downloadable?(source)
Upload.exists?(status: "preprocessing", source: source)
else
false
end
end
def predecessor
if md5.present?
Upload.where(status: ["preprocessed", "preprocessing"], md5: md5).first
elsif Utils.is_downloadable?(source)
Upload.where(status: ["preprocessed", "preprocessing"], source: source).first
end
end
def completed?
predecessor.present?
end
def delayed_start(uploader)
CurrentUser.scoped(uploader) do
start!
end
rescue ActiveRecord::RecordNotUnique
end
def start!
raise NotImplementedError, "No login credentials configured for #{strategy.site_name}." unless strategy.class.enabled?
params[:rating] ||= "q"
params[:tag_string] ||= "tagme"
upload = Upload.create!(params)
begin
upload.update(status: "preprocessing")
file = Utils.get_file_for_upload(upload.source_url, upload.referer_url, params[:file]&.tempfile)
Utils.process_file(upload, file, original_post_id: original_post_id)
upload.rating = params[:rating]
upload.tag_string = params[:tag_string]
upload.status = "preprocessed"
upload.save!
rescue Exception => e
upload.update(file_ext: nil, status: "error: #{e.class} - #{e.message}", backtrace: e.backtrace.join("\n"))
end
upload
end
def finish!(upload = nil)
pred = upload || predecessor
# regardless of who initialized the upload, credit should
# goto whoever submitted the form
pred.initialize_attributes
pred.attributes = params
# if a file was uploaded after the preprocessing occurred,
# then process the file and overwrite whatever the preprocessor
# did
Utils.process_file(pred, pred.file.tempfile) if pred.file.present?
pred.status = "completed"
pred.save
pred
end
end
end