forked from fedi/mastodon
Optimize archive export service and export zip files instead of gzipped tar files (#23360)
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Gemfile
1
Gemfile
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@ -162,3 +162,4 @@ gem 'xorcist', '~> 1.1'
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gem 'cocoon', '~> 1.2'
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gem 'net-http', '~> 0.3.2'
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gem 'rubyzip', '~> 2.3'
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@ -636,6 +636,7 @@ GEM
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nokogiri (>= 1.10.5)
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rexml
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ruby2_keywords (0.0.5)
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rubyzip (2.3.2)
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rufus-scheduler (3.8.2)
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fugit (~> 1.1, >= 1.1.6)
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safety_net_attestation (0.4.0)
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@ -876,6 +877,7 @@ DEPENDENCIES
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rubocop-rails
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rubocop-rspec
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ruby-progressbar (~> 1.13)
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rubyzip (~> 2.3)
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sanitize (~> 6.0)
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scenic (~> 1.7)
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sidekiq (~> 6.5)
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@ -1,59 +1,67 @@
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# frozen_string_literal: true
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require 'rubygems/package'
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require 'zip'
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class BackupService < BaseService
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include Payloadable
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include ContextHelper
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attr_reader :account, :backup, :collection
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attr_reader :account, :backup
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def call(backup)
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@backup = backup
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@account = backup.user.account
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build_json!
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build_archive!
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end
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private
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def build_json!
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@collection = serialize(collection_presenter, ActivityPub::CollectionSerializer)
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def build_outbox_json!(file)
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skeleton = serialize(collection_presenter, ActivityPub::CollectionSerializer)
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skeleton[:@context] = full_context
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skeleton[:orderedItems] = ['!PLACEHOLDER!']
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skeleton = Oj.dump(skeleton)
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prepend, append = skeleton.split('"!PLACEHOLDER!"')
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add_comma = false
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file.write(prepend)
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account.statuses.with_includes.reorder(nil).find_in_batches do |statuses|
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statuses.each do |status|
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item = serialize_payload(ActivityPub::ActivityPresenter.from_status(status), ActivityPub::ActivitySerializer, signer: @account)
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item.delete(:@context)
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file.write(',') if add_comma
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add_comma = true
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file.write(statuses.map do |status|
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item = serialize_payload(ActivityPub::ActivityPresenter.from_status(status), ActivityPub::ActivitySerializer)
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item.delete('@context')
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unless item[:type] == 'Announce' || item[:object][:attachment].blank?
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item[:object][:attachment].each do |attachment|
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attachment[:url] = Addressable::URI.parse(attachment[:url]).path.gsub(/\A\/system\//, '')
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attachment[:url] = Addressable::URI.parse(attachment[:url]).path.delete_prefix('/system/')
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end
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end
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@collection[:orderedItems] << item
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end
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Oj.dump(item)
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end.join(','))
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GC.start
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end
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file.write(append)
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end
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def build_archive!
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tmp_file = Tempfile.new(%w(archive .tar.gz))
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tmp_file = Tempfile.new(%w(archive .zip))
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File.open(tmp_file, 'wb') do |file|
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Zlib::GzipWriter.wrap(file) do |gz|
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Gem::Package::TarWriter.new(gz) do |tar|
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dump_media_attachments!(tar)
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dump_outbox!(tar)
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dump_likes!(tar)
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dump_bookmarks!(tar)
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dump_actor!(tar)
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end
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end
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Zip::File.open(tmp_file, create: true) do |zipfile|
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dump_outbox!(zipfile)
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dump_media_attachments!(zipfile)
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dump_likes!(zipfile)
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dump_bookmarks!(zipfile)
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dump_actor!(zipfile)
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end
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archive_filename = "#{['archive', Time.now.utc.strftime('%Y%m%d%H%M%S'), SecureRandom.hex(16)].join('-')}.tar.gz"
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archive_filename = "#{['archive', Time.now.utc.strftime('%Y%m%d%H%M%S'), SecureRandom.hex(16)].join('-')}.zip"
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@backup.dump = ActionDispatch::Http::UploadedFile.new(tempfile: tmp_file, filename: archive_filename)
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@backup.processed = true
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@ -63,27 +71,28 @@ class BackupService < BaseService
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tmp_file.unlink
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end
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def dump_media_attachments!(tar)
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def dump_media_attachments!(zipfile)
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MediaAttachment.attached.where(account: account).reorder(nil).find_in_batches do |media_attachments|
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media_attachments.each do |m|
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next unless m.file&.path
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path = m.file&.path
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next unless path
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download_to_tar(tar, m.file, m.file.path)
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path = path.gsub(/\A.*\/system\//, '')
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path = path.gsub(/\A\/+/, '')
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download_to_zip(zipfile, m.file, path)
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end
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GC.start
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end
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end
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def dump_outbox!(tar)
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json = Oj.dump(collection)
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tar.add_file_simple('outbox.json', 0o444, json.bytesize) do |io|
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io.write(json)
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def dump_outbox!(zipfile)
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zipfile.get_output_stream('outbox.json') do |io|
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build_outbox_json!(io)
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end
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end
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def dump_actor!(tar)
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def dump_actor!(zipfile)
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actor = serialize(account, ActivityPub::ActorSerializer)
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actor[:icon][:url] = "avatar#{File.extname(actor[:icon][:url])}" if actor[:icon]
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@ -92,51 +101,66 @@ class BackupService < BaseService
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actor[:likes] = 'likes.json'
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actor[:bookmarks] = 'bookmarks.json'
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download_to_tar(tar, account.avatar, "avatar#{File.extname(account.avatar.path)}") if account.avatar.exists?
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download_to_tar(tar, account.header, "header#{File.extname(account.header.path)}") if account.header.exists?
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download_to_zip(tar, account.avatar, "avatar#{File.extname(account.avatar.path)}") if account.avatar.exists?
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download_to_zip(tar, account.header, "header#{File.extname(account.header.path)}") if account.header.exists?
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json = Oj.dump(actor)
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tar.add_file_simple('actor.json', 0o444, json.bytesize) do |io|
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zipfile.get_output_stream('actor.json') do |io|
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io.write(json)
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end
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end
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def dump_likes!(tar)
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collection = serialize(ActivityPub::CollectionPresenter.new(id: 'likes.json', type: :ordered, size: 0, items: []), ActivityPub::CollectionSerializer)
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def dump_likes!(zipfile)
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skeleton = serialize(ActivityPub::CollectionPresenter.new(id: 'likes.json', type: :ordered, size: 0, items: []), ActivityPub::CollectionSerializer)
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skeleton.delete(:totalItems)
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skeleton[:orderedItems] = ['!PLACEHOLDER!']
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skeleton = Oj.dump(skeleton)
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prepend, append = skeleton.split('"!PLACEHOLDER!"')
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zipfile.get_output_stream('likes.json') do |io|
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io.write(prepend)
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add_comma = false
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Status.reorder(nil).joins(:favourites).includes(:account).merge(account.favourites).find_in_batches do |statuses|
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statuses.each do |status|
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collection[:totalItems] += 1
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collection[:orderedItems] << ActivityPub::TagManager.instance.uri_for(status)
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end
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io.write(',') if add_comma
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add_comma = true
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io.write(statuses.map do |status|
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Oj.dump(ActivityPub::TagManager.instance.uri_for(status))
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end.join(','))
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GC.start
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end
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json = Oj.dump(collection)
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tar.add_file_simple('likes.json', 0o444, json.bytesize) do |io|
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io.write(json)
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io.write(append)
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end
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end
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def dump_bookmarks!(tar)
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collection = serialize(ActivityPub::CollectionPresenter.new(id: 'bookmarks.json', type: :ordered, size: 0, items: []), ActivityPub::CollectionSerializer)
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def dump_bookmarks!(zipfile)
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skeleton = serialize(ActivityPub::CollectionPresenter.new(id: 'bookmarks.json', type: :ordered, size: 0, items: []), ActivityPub::CollectionSerializer)
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skeleton.delete(:totalItems)
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skeleton[:orderedItems] = ['!PLACEHOLDER!']
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skeleton = Oj.dump(skeleton)
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prepend, append = skeleton.split('"!PLACEHOLDER!"')
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zipfile.get_output_stream('bookmarks.json') do |io|
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io.write(prepend)
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add_comma = false
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Status.reorder(nil).joins(:bookmarks).includes(:account).merge(account.bookmarks).find_in_batches do |statuses|
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statuses.each do |status|
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collection[:totalItems] += 1
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collection[:orderedItems] << ActivityPub::TagManager.instance.uri_for(status)
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end
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io.write(',') if add_comma
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add_comma = true
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io.write(statuses.map do |status|
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Oj.dump(ActivityPub::TagManager.instance.uri_for(status))
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end.join(','))
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GC.start
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end
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json = Oj.dump(collection)
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tar.add_file_simple('bookmarks.json', 0o444, json.bytesize) do |io|
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io.write(json)
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io.write(append)
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end
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end
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@ -159,10 +183,10 @@ class BackupService < BaseService
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CHUNK_SIZE = 1.megabyte
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def download_to_tar(tar, attachment, filename)
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def download_to_zip(zipfile, attachment, filename)
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adapter = Paperclip.io_adapters.for(attachment)
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tar.add_file_simple(filename, 0o444, adapter.size) do |io|
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zipfile.get_output_stream(filename) do |io|
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while (buffer = adapter.read(CHUNK_SIZE))
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io.write(buffer)
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end
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67
spec/services/backup_service_spec.rb
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67
spec/services/backup_service_spec.rb
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@ -0,0 +1,67 @@
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# frozen_string_literal: true
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require 'rails_helper'
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RSpec.describe BackupService, type: :service do
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subject(:service_call) { described_class.new.call(backup) }
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let!(:user) { Fabricate(:user) }
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let!(:attachment) { Fabricate(:media_attachment, account: user.account) }
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let!(:status) { Fabricate(:status, account: user.account, text: 'Hello', visibility: :public, media_attachments: [attachment]) }
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let!(:private_status) { Fabricate(:status, account: user.account, text: 'secret', visibility: :private) }
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let!(:favourite) { Fabricate(:favourite, account: user.account) }
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let!(:bookmark) { Fabricate(:bookmark, account: user.account) }
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let!(:backup) { Fabricate(:backup, user: user) }
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def read_zip_file(backup, filename)
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file = Paperclip.io_adapters.for(backup.dump)
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Zip::File.open(file) do |zipfile|
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entry = zipfile.glob(filename).first
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return entry.get_input_stream.read
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end
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end
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it 'marks the backup as processed' do
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expect { service_call }.to change(backup, :processed).from(false).to(true)
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end
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it 'exports outbox.json as expected' do
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service_call
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json = Oj.load(read_zip_file(backup, 'outbox.json'))
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expect(json['@context']).to_not be_nil
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expect(json['type']).to eq 'OrderedCollection'
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expect(json['totalItems']).to eq 2
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expect(json['orderedItems'][0]['@context']).to be_nil
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expect(json['orderedItems'][0]).to include({
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'type' => 'Create',
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'object' => include({
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'id' => ActivityPub::TagManager.instance.uri_for(status),
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'content' => '<p>Hello</p>',
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}),
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})
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expect(json['orderedItems'][1]).to include({
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'type' => 'Create',
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'object' => include({
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'id' => ActivityPub::TagManager.instance.uri_for(private_status),
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'content' => '<p>secret</p>',
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}),
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})
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end
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it 'exports likes.json as expected' do
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service_call
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json = Oj.load(read_zip_file(backup, 'likes.json'))
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expect(json['type']).to eq 'OrderedCollection'
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expect(json['orderedItems']).to eq [ActivityPub::TagManager.instance.uri_for(favourite.status)]
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end
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it 'exports bookmarks.json as expected' do
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service_call
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json = Oj.load(read_zip_file(backup, 'bookmarks.json'))
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expect(json['type']).to eq 'OrderedCollection'
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expect(json['orderedItems']).to eq [ActivityPub::TagManager.instance.uri_for(bookmark.status)]
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end
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end
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