Files
danbooru/app/logical/upload_service/replacer.rb
evazion a7dc05ce63 Enable frozen string literals.
Make all string literals immutable by default.
2021-12-14 21:33:27 -06:00

120 lines
3.9 KiB
Ruby

# frozen_string_literal: true
class UploadService
class Replacer
extend Memoist
class Error < StandardError; end
attr_reader :post, :replacement
def initialize(post:, replacement:)
@post = post
@replacement = replacement
end
def comment_replacement_message(post, replacement)
%{"#{replacement.creator.name}":[#{Routes.user_path(replacement.creator)}] replaced this post with a new file:\n\n#{replacement_message(post, replacement)}}
end
def replacement_message(post, replacement)
linked_source = linked_source(replacement.replacement_url)
linked_source_was = linked_source(post.source_was)
<<-EOS.strip_heredoc
[table]
[tbody]
[tr]
[th]Old[/th]
[td]#{linked_source_was}[/td]
[td]#{post.md5_was}[/td]
[td]#{post.file_ext_was}[/td]
[td]#{post.image_width_was} x #{post.image_height_was}[/td]
[td]#{post.file_size_was.to_s(:human_size, precision: 4)}[/td]
[/tr]
[tr]
[th]New[/th]
[td]#{linked_source}[/td]
[td]#{post.md5}[/td]
[td]#{post.file_ext}[/td]
[td]#{post.image_width} x #{post.image_height}[/td]
[td]#{post.file_size.to_s(:human_size, precision: 4)}[/td]
[/tr]
[/tbody]
[/table]
EOS
end
def linked_source(source)
return nil if source.nil?
# truncate long sources in the middle: "www.pixiv.net...lust_id=23264933"
truncated_source = source.gsub(%r{\Ahttps?://}, "").truncate(64, omission: "...#{source.last(32)}")
if source =~ %r{\Ahttps?://}i
%{"#{truncated_source}":[#{source}]}
else
truncated_source
end
end
def undo!
undo_replacement = post.replacements.create(replacement_url: replacement.original_url)
undoer = Replacer.new(post: post, replacement: undo_replacement)
undoer.process!
end
def replacement_url
if replacement.replacement_file.present?
"file://#{replacement.replacement_file.original_filename}"
else
Sources::Strategies.find(replacement.replacement_url).canonical_url
end
end
def process!
media_file = Utils::get_file_for_upload(replacement.replacement_url, nil, replacement.replacement_file&.tempfile)
if media_file.md5 == post.md5
raise Error, "Can't replace a post with itself; regenerate the post instead"
elsif Post.exists?(md5: media_file.md5)
raise Error, "Duplicate: post with md5 #{media_file.md5} already exists"
end
media_asset = MediaAsset.upload!(media_file)
replacement.replacement_url = replacement_url
replacement.file_ext = media_asset.file_ext
replacement.file_size = media_asset.file_size
replacement.image_height = media_asset.image_height
replacement.image_width = media_asset.image_width
replacement.md5 = media_asset.md5
post.md5 = media_asset.md5
post.file_ext = media_asset.file_ext
post.image_width = media_asset.image_width
post.image_height = media_asset.image_height
post.file_size = media_asset.file_size
post.source = replacement.final_source.presence || replacement.replacement_url
post.tag_string = replacement.tags
rescale_notes(post)
CurrentUser.scoped(User.system) { Comment.create!(post: post, creator: User.system, updater: User.system, body: comment_replacement_message(post, replacement), do_not_bump_post: true, creator_ip_addr: "127.0.0.1") }
replacement.save!
post.save!
post.update_iqdb
end
def rescale_notes(post)
x_scale = post.image_width.to_f / post.image_width_was.to_f
y_scale = post.image_height.to_f / post.image_height_was.to_f
post.notes.each do |note|
note.rescale!(x_scale, y_scale)
end
end
end
end