Wrap methods of ProcessFeedService::ProcessEntry in classes (#4151)
ProcessFeedService::ProcessEntry had many methods, so wrap them in classes representing activities.
This commit is contained in:
Akihiko Odaki (@fn_aki@pawoo.net)
Eugen Rochko
parent
29f314a502
commit
425acecfdb
@ -22,145 +22,59 @@ class ProcessFeedService < BaseService
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class ProcessEntry
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def call(xml, account)
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@account = account
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@xml = xml
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@fetched = Activity.new(xml)
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return if skip_unsupported_type?
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return unless [:activity, :note, :comment].include?(@fetched.type)
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case verb
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when :post, :share
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return create_status
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klass = case @fetched.verb
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when :post
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PostActivity
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when :share
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ShareActivity
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when :delete
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return delete_status
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DeletionActivity
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else
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return
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end
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@fetched = klass.new(xml, account)
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@fetched.perform
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rescue ActiveRecord::RecordInvalid => e
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Rails.logger.debug "Nothing was saved for #{id} because: #{e}"
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nil
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end
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class Activity
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def initialize(xml, account = nil)
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@xml = xml
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@account = account
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end
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def verb
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raw = @xml.at_xpath('./activity:verb', activity: TagManager::AS_XMLNS).content
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TagManager::VERBS.key(raw)
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rescue
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:post
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end
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def type
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raw = @xml.at_xpath('./activity:object-type', activity: TagManager::AS_XMLNS).content
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TagManager::TYPES.key(raw)
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rescue
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:activity
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end
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def id
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@xml.at_xpath('./xmlns:id', xmlns: TagManager::XMLNS).content
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end
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def url
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link = @xml.at_xpath('./xmlns:link[@rel="alternate"]', xmlns: TagManager::XMLNS)
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link.nil? ? nil : link['href']
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end
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private
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def create_status
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if redis.exists("delete_upon_arrival:#{@account.id}:#{id}")
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Rails.logger.debug "Delete for status #{id} was queued, ignoring"
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return
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end
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status, just_created = nil
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Rails.logger.debug "Creating remote status #{id}"
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if verb == :share
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original_status = shared_status_from_xml(@xml.at_xpath('.//activity:object', activity: TagManager::AS_XMLNS))
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return nil if original_status.nil?
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end
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ApplicationRecord.transaction do
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status, just_created = status_from_xml(@xml)
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return if status.nil?
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return status unless just_created
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if verb == :share
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status.reblog = original_status.reblog? ? original_status.reblog : original_status
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end
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status.save!
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end
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if thread?(@xml) && status.thread.nil?
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Rails.logger.debug "Trying to attach #{status.id} (#{id(@xml)}) to #{thread(@xml).first}"
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ThreadResolveWorker.perform_async(status.id, thread(@xml).second)
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end
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notify_about_mentions!(status) unless status.reblog?
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notify_about_reblog!(status) if status.reblog? && status.reblog.account.local?
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Rails.logger.debug "Queuing remote status #{status.id} (#{id}) for distribution"
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LinkCrawlWorker.perform_async(status.id) unless status.spoiler_text?
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DistributionWorker.perform_async(status.id)
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status
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end
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def notify_about_mentions!(status)
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status.mentions.includes(:account).each do |mention|
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mentioned_account = mention.account
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next unless mentioned_account.local?
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NotifyService.new.call(mentioned_account, mention)
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end
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end
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def notify_about_reblog!(status)
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NotifyService.new.call(status.reblog.account, status)
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end
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def delete_status
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Rails.logger.debug "Deleting remote status #{id}"
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status = Status.find_by(uri: id, account: @account)
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if status.nil?
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redis.setex("delete_upon_arrival:#{@account.id}:#{id}", 6 * 3_600, id)
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else
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RemoveStatusService.new.call(status)
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end
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end
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def skip_unsupported_type?
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!([:post, :share, :delete].include?(verb) && [:activity, :note, :comment].include?(type))
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end
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def shared_status_from_xml(entry)
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status = find_status(id(entry))
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return status unless status.nil?
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FetchRemoteStatusService.new.call(url(entry))
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end
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def status_from_xml(entry)
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# Return early if status already exists in db
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status = find_status(id(entry))
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return [status, false] unless status.nil?
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account = @account
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return [nil, false] if account.suspended?
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status = Status.create!(
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uri: id(entry),
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url: url(entry),
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account: account,
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text: content(entry),
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spoiler_text: content_warning(entry),
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created_at: published(entry),
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reply: thread?(entry),
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language: content_language(entry),
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visibility: visibility_scope(entry),
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conversation: find_or_create_conversation(entry),
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thread: thread?(entry) ? find_status(thread(entry).first) : nil
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)
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mentions_from_xml(status, entry)
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hashtags_from_xml(status, entry)
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media_from_xml(status, entry)
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[status, true]
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end
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def find_or_create_conversation(xml)
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uri = xml.at_xpath('./ostatus:conversation', ostatus: TagManager::OS_XMLNS)&.attribute('ref')&.content
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return if uri.nil?
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if TagManager.instance.local_id?(uri)
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local_id = TagManager.instance.unique_tag_to_local_id(uri, 'Conversation')
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return Conversation.find_by(id: local_id)
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end
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Conversation.find_by(uri: uri) || Conversation.create!(uri: uri)
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end
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def find_status(uri)
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if TagManager.instance.local_id?(uri)
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local_id = TagManager.instance.unique_tag_to_local_id(uri, 'Status')
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@ -170,10 +84,106 @@ class ProcessFeedService < BaseService
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Status.find_by(uri: uri)
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end
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def mentions_from_xml(parent, xml)
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def redis
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Redis.current
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end
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end
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class CreationActivity < Activity
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def perform
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if redis.exists("delete_upon_arrival:#{@account.id}:#{id}")
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Rails.logger.debug "Delete for status #{id} was queued, ignoring"
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return
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end
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Rails.logger.debug "Creating remote status #{id}"
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# Return early if status already exists in db
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status = find_status(id)
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return [status, false] unless status.nil?
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return [nil, false] if @account.suspended?
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status = Status.create!(
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uri: id,
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url: url,
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account: @account,
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reblog: reblog,
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text: content,
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spoiler_text: content_warning,
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created_at: published,
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reply: thread?,
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language: content_language,
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visibility: visibility_scope,
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conversation: converstation_to_persistent&.first,
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thread: thread? ? find_status(thread.first) : nil
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)
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save_mentions(status)
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save_hashtags(status)
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save_media(status)
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if thread? && status.thread.nil?
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Rails.logger.debug "Trying to attach #{status.id} (#{id}) to #{thread.first}"
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ThreadResolveWorker.perform_async(status.id, thread.second)
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end
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Rails.logger.debug "Queuing remote status #{status.id} (#{id}) for distribution"
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LinkCrawlWorker.perform_async(status.id) unless status.spoiler_text?
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DistributionWorker.perform_async(status.id)
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[status, true]
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end
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def content
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@xml.at_xpath('./xmlns:content', xmlns: TagManager::XMLNS).content
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end
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def content_language
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@xml.at_xpath('./xmlns:content', xmlns: TagManager::XMLNS)['xml:lang']&.presence || 'en'
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end
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def content_warning
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@xml.at_xpath('./xmlns:summary', xmlns: TagManager::XMLNS)&.content || ''
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end
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def visibility_scope
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@xml.at_xpath('./mastodon:scope', mastodon: TagManager::MTDN_XMLNS)&.content&.to_sym || :public
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end
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def published
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@xml.at_xpath('./xmlns:published', xmlns: TagManager::XMLNS).content
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end
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def thread?
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!@xml.at_xpath('./thr:in-reply-to', thr: TagManager::THR_XMLNS).nil?
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end
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def thread
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thr = @xml.at_xpath('./thr:in-reply-to', thr: TagManager::THR_XMLNS)
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[thr['ref'], thr['href']]
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end
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private
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def converstation_to_persistent
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uri = @xml.at_xpath('./ostatus:conversation', ostatus: TagManager::OS_XMLNS)&.attribute('ref')&.content
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return if uri.nil?
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if TagManager.instance.local_id?(uri)
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local_id = TagManager.instance.unique_tag_to_local_id(uri, 'Conversation')
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return Conversation.find_by(id: local_id)
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end
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found = Conversation.find_by(uri: uri)
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found ? [found, false] : [Conversation.create!(uri: uri), true]
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end
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def save_mentions(parent)
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processed_account_ids = []
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xml.xpath('./xmlns:link[@rel="mentioned"]', xmlns: TagManager::XMLNS).each do |link|
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@xml.xpath('./xmlns:link[@rel="mentioned"]', xmlns: TagManager::XMLNS).each do |link|
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next if [TagManager::TYPES[:group], TagManager::TYPES[:collection]].include? link['ostatus:object-type']
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mentioned_account = account_from_href(link['href'])
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@ -187,25 +197,15 @@ class ProcessFeedService < BaseService
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end
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end
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def account_from_href(href)
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url = Addressable::URI.parse(href).normalize
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if TagManager.instance.web_domain?(url.host)
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Account.find_local(url.path.gsub('/users/', ''))
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else
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Account.where(uri: href).or(Account.where(url: href)).first || FetchRemoteAccountService.new.call(href)
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end
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end
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def hashtags_from_xml(parent, xml)
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tags = xml.xpath('./xmlns:category', xmlns: TagManager::XMLNS).map { |category| category['term'] }.select(&:present?)
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def save_hashtags(parent)
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tags = @xml.xpath('./xmlns:category', xmlns: TagManager::XMLNS).map { |category| category['term'] }.select(&:present?)
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ProcessHashtagsService.new.call(parent, tags)
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end
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def media_from_xml(parent, xml)
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def save_media(parent)
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do_not_download = DomainBlock.find_by(domain: parent.account.domain)&.reject_media?
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xml.xpath('./xmlns:link[@rel="enclosure"]', xmlns: TagManager::XMLNS).each do |link|
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@xml.xpath('./xmlns:link[@rel="enclosure"]', xmlns: TagManager::XMLNS).each do |link|
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next unless link['href']
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media = MediaAttachment.where(status: parent, remote_url: link['href']).first_or_initialize(account: parent.account, status: parent, remote_url: link['href'])
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@ -226,64 +226,81 @@ class ProcessFeedService < BaseService
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end
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end
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def id(xml = @xml)
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xml.at_xpath('./xmlns:id', xmlns: TagManager::XMLNS).content
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def account_from_href(href)
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url = Addressable::URI.parse(href).normalize
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if TagManager.instance.web_domain?(url.host)
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Account.find_local(url.path.gsub('/users/', ''))
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else
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Account.where(uri: href).or(Account.where(url: href)).first || FetchRemoteAccountService.new.call(href)
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end
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end
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end
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def verb(xml = @xml)
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raw = xml.at_xpath('./activity:verb', activity: TagManager::AS_XMLNS).content
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TagManager::VERBS.key(raw)
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rescue
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:post
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class ShareActivity < CreationActivity
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def perform
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status, just_created = super
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NotifyService.new.call(reblog.account, status) if reblog&.account&.local? && just_created
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status
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end
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def type(xml = @xml)
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raw = xml.at_xpath('./activity:object-type', activity: TagManager::AS_XMLNS).content
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TagManager::TYPES.key(raw)
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rescue
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:activity
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def object
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@xml.at_xpath('.//activity:object', activity: TagManager::AS_XMLNS)
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end
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def url(xml = @xml)
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link = xml.at_xpath('./xmlns:link[@rel="alternate"]', xmlns: TagManager::XMLNS)
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link.nil? ? nil : link['href']
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private
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def status
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reblog && super
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end
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def content(xml = @xml)
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xml.at_xpath('./xmlns:content', xmlns: TagManager::XMLNS).content
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def reblog
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return @reblog if defined? @reblog
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original_status = RemoteActivity.new(object).perform
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@reblog = original_status.reblog? ? original_status.reblog : original_status
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end
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end
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def content_language(xml = @xml)
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xml.at_xpath('./xmlns:content', xmlns: TagManager::XMLNS)['xml:lang']&.presence || 'en'
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class PostActivity < CreationActivity
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def perform
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status, just_created = super
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if just_created
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status.mentions.includes(:account).each do |mention|
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mentioned_account = mention.account
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next unless mentioned_account.local?
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NotifyService.new.call(mentioned_account, mention)
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end
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end
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def content_warning(xml = @xml)
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xml.at_xpath('./xmlns:summary', xmlns: TagManager::XMLNS)&.content || ''
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status
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end
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def visibility_scope(xml = @xml)
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xml.at_xpath('./mastodon:scope', mastodon: TagManager::MTDN_XMLNS)&.content&.to_sym || :public
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private
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def reblog
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nil
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end
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end
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def published(xml = @xml)
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xml.at_xpath('./xmlns:published', xmlns: TagManager::XMLNS).content
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class DeletionActivity < Activity
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def perform
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Rails.logger.debug "Deleting remote status #{id}"
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status = Status.find_by(uri: id, account: @account)
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if status.nil?
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redis.setex("delete_upon_arrival:#{@account.id}:#{id}", 6 * 3_600, id)
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else
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RemoveStatusService.new.call(status)
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end
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end
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end
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def thread?(xml = @xml)
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!xml.at_xpath('./thr:in-reply-to', thr: TagManager::THR_XMLNS).nil?
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class RemoteActivity < Activity
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def perform
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find_status(id) || FetchRemoteStatusService.new.call(url)
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end
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def thread(xml = @xml)
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thr = xml.at_xpath('./thr:in-reply-to', thr: TagManager::THR_XMLNS)
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[thr['ref'], thr['href']]
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end
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def account?(xml = @xml)
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!xml.at_xpath('./xmlns:author', xmlns: TagManager::XMLNS).nil?
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end
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def redis
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Redis.current
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end
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end
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end
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