524 lines
		
	
	
	
		
			17 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			524 lines
		
	
	
	
		
			17 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # frozen_string_literal: true
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| # == Schema Information
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| #
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| # Table name: statuses
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| #
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| #  id                     :bigint(8)        not null, primary key
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| #  uri                    :string
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| #  text                   :text             default(""), not null
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| #  created_at             :datetime         not null
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| #  updated_at             :datetime         not null
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| #  in_reply_to_id         :bigint(8)
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| #  reblog_of_id           :bigint(8)
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| #  url                    :string
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| #  sensitive              :boolean          default(FALSE), not null
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| #  visibility             :integer          default("public"), not null
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| #  spoiler_text           :text             default(""), not null
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| #  reply                  :boolean          default(FALSE), not null
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| #  language               :string
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| #  conversation_id        :bigint(8)
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| #  local                  :boolean
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| #  account_id             :bigint(8)        not null
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| #  application_id         :bigint(8)
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| #  in_reply_to_account_id :bigint(8)
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| #  poll_id                :bigint(8)
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| #
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| 
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| class Status < ApplicationRecord
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|   before_destroy :unlink_from_conversations
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| 
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|   include Paginable
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|   include Streamable
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|   include Cacheable
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|   include StatusThreadingConcern
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| 
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|   # If `override_timestamps` is set at creation time, Snowflake ID creation
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|   # will be based on current time instead of `created_at`
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|   attr_accessor :override_timestamps
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| 
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|   update_index('statuses#status', :proper) if Chewy.enabled?
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| 
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|   enum visibility: [:public, :unlisted, :private, :direct, :limited], _suffix: :visibility
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| 
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|   belongs_to :application, class_name: 'Doorkeeper::Application', optional: true
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| 
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|   belongs_to :account, inverse_of: :statuses
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|   belongs_to :in_reply_to_account, foreign_key: 'in_reply_to_account_id', class_name: 'Account', optional: true
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|   belongs_to :conversation, optional: true
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|   belongs_to :preloadable_poll, class_name: 'Poll', foreign_key: 'poll_id', optional: true
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| 
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|   belongs_to :thread, foreign_key: 'in_reply_to_id', class_name: 'Status', inverse_of: :replies, optional: true
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|   belongs_to :reblog, foreign_key: 'reblog_of_id', class_name: 'Status', inverse_of: :reblogs, optional: true
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| 
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|   has_many :favourites, inverse_of: :status, dependent: :destroy
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|   has_many :reblogs, foreign_key: 'reblog_of_id', class_name: 'Status', inverse_of: :reblog, dependent: :destroy
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|   has_many :replies, foreign_key: 'in_reply_to_id', class_name: 'Status', inverse_of: :thread
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|   has_many :mentions, dependent: :destroy, inverse_of: :status
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|   has_many :active_mentions, -> { active }, class_name: 'Mention', inverse_of: :status
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|   has_many :media_attachments, dependent: :nullify
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| 
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|   has_and_belongs_to_many :tags
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|   has_and_belongs_to_many :preview_cards
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| 
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|   has_one :notification, as: :activity, dependent: :destroy
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|   has_one :stream_entry, as: :activity, inverse_of: :status
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|   has_one :status_stat, inverse_of: :status
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|   has_one :poll, inverse_of: :status, dependent: :destroy
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| 
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|   validates :uri, uniqueness: true, presence: true, unless: :local?
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|   validates :text, presence: true, unless: -> { with_media? || reblog? }
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|   validates_with StatusLengthValidator
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|   validates_with DisallowedHashtagsValidator
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|   validates :reblog, uniqueness: { scope: :account }, if: :reblog?
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|   validates :visibility, exclusion: { in: %w(direct limited) }, if: :reblog?
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| 
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|   accepts_nested_attributes_for :poll
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| 
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|   default_scope { recent }
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| 
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|   scope :recent, -> { reorder(id: :desc) }
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|   scope :remote, -> { where(local: false).or(where.not(uri: nil)) }
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|   scope :local,  -> { where(local: true).or(where(uri: nil)) }
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| 
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|   scope :without_replies, -> { where('statuses.reply = FALSE OR statuses.in_reply_to_account_id = statuses.account_id') }
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|   scope :without_reblogs, -> { where('statuses.reblog_of_id IS NULL') }
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|   scope :with_public_visibility, -> { where(visibility: :public) }
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|   scope :tagged_with, ->(tag) { joins(:statuses_tags).where(statuses_tags: { tag_id: tag }) }
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|   scope :excluding_silenced_accounts, -> { left_outer_joins(:account).where(accounts: { silenced_at: nil }) }
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|   scope :including_silenced_accounts, -> { left_outer_joins(:account).where.not(accounts: { silenced_at: nil }) }
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|   scope :not_excluded_by_account, ->(account) { where.not(account_id: account.excluded_from_timeline_account_ids) }
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|   scope :not_domain_blocked_by_account, ->(account) { account.excluded_from_timeline_domains.blank? ? left_outer_joins(:account) : left_outer_joins(:account).where('accounts.domain IS NULL OR accounts.domain NOT IN (?)', account.excluded_from_timeline_domains) }
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|   scope :tagged_with_all, ->(tags) {
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|     Array(tags).map(&:id).map(&:to_i).reduce(self) do |result, id|
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|       result.joins("INNER JOIN statuses_tags t#{id} ON t#{id}.status_id = statuses.id AND t#{id}.tag_id = #{id}")
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|     end
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|   }
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|   scope :tagged_with_none, ->(tags) {
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|     Array(tags).map(&:id).map(&:to_i).reduce(self) do |result, id|
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|       result.joins("LEFT OUTER JOIN statuses_tags t#{id} ON t#{id}.status_id = statuses.id AND t#{id}.tag_id = #{id}")
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|             .where("t#{id}.tag_id IS NULL")
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|     end
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|   }
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| 
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|   cache_associated :application,
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|                    :media_attachments,
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|                    :conversation,
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|                    :status_stat,
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|                    :tags,
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|                    :preview_cards,
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|                    :stream_entry,
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|                    :preloadable_poll,
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|                    account: :account_stat,
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|                    active_mentions: { account: :account_stat },
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|                    reblog: [
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|                      :application,
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|                      :stream_entry,
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|                      :tags,
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|                      :preview_cards,
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|                      :media_attachments,
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|                      :conversation,
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|                      :status_stat,
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|                      :preloadable_poll,
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|                      account: :account_stat,
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|                      active_mentions: { account: :account_stat },
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|                    ],
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|                    thread: { account: :account_stat }
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| 
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|   delegate :domain, to: :account, prefix: true
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| 
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|   REAL_TIME_WINDOW = 6.hours
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| 
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|   def searchable_by(preloaded = nil)
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|     ids = [account_id]
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| 
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|     if preloaded.nil?
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|       ids += mentions.pluck(:account_id)
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|       ids += favourites.pluck(:account_id)
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|       ids += reblogs.pluck(:account_id)
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|     else
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|       ids += preloaded.mentions[id] || []
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|       ids += preloaded.favourites[id] || []
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|       ids += preloaded.reblogs[id] || []
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|     end
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| 
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|     ids.uniq
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|   end
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| 
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|   def reply?
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|     !in_reply_to_id.nil? || attributes['reply']
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|   end
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| 
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|   def local?
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|     attributes['local'] || uri.nil?
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|   end
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| 
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|   def reblog?
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|     !reblog_of_id.nil?
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|   end
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| 
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|   def within_realtime_window?
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|     created_at >= REAL_TIME_WINDOW.ago
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|   end
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| 
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|   def verb
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|     if destroyed?
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|       :delete
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|     else
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|       reblog? ? :share : :post
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|     end
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|   end
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| 
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|   def object_type
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|     reply? ? :comment : :note
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|   end
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| 
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|   def proper
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|     reblog? ? reblog : self
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|   end
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| 
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|   def content
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|     proper.text
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|   end
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| 
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|   def target
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|     reblog
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|   end
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| 
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|   def preview_card
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|     preview_cards.first
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|   end
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| 
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|   def title
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|     if destroyed?
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|       "#{account.acct} deleted status"
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|     else
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|       reblog? ? "#{account.acct} shared a status by #{reblog.account.acct}" : "New status by #{account.acct}"
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|     end
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|   end
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| 
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|   def hidden?
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|     private_visibility? || direct_visibility? || limited_visibility?
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|   end
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| 
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|   def distributable?
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|     public_visibility? || unlisted_visibility?
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|   end
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| 
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|   alias sign? distributable?
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| 
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|   def with_media?
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|     media_attachments.any?
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|   end
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| 
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|   def non_sensitive_with_media?
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|     !sensitive? && with_media?
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|   end
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| 
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|   def emojis
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|     return @emojis if defined?(@emojis)
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| 
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|     fields  = [spoiler_text, text]
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|     fields += preloadable_poll.options unless preloadable_poll.nil?
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| 
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|     @emojis = CustomEmoji.from_text(fields.join(' '), account.domain)
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|   end
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| 
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|   def mark_for_mass_destruction!
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|     @marked_for_mass_destruction = true
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|   end
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| 
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|   def marked_for_mass_destruction?
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|     @marked_for_mass_destruction
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|   end
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| 
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|   def replies_count
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|     status_stat&.replies_count || 0
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|   end
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| 
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|   def reblogs_count
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|     status_stat&.reblogs_count || 0
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|   end
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| 
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|   def favourites_count
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|     status_stat&.favourites_count || 0
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|   end
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| 
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|   def increment_count!(key)
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|     update_status_stat!(key => public_send(key) + 1)
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|   end
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| 
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|   def decrement_count!(key)
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|     update_status_stat!(key => [public_send(key) - 1, 0].max)
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|   end
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| 
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|   after_create_commit  :increment_counter_caches
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|   after_destroy_commit :decrement_counter_caches
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| 
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|   after_create_commit :store_uri, if: :local?
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|   after_create_commit :update_statistics, if: :local?
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| 
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|   around_create Mastodon::Snowflake::Callbacks
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| 
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|   before_validation :prepare_contents, if: :local?
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|   before_validation :set_reblog
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|   before_validation :set_visibility
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|   before_validation :set_conversation
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|   before_validation :set_local
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| 
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|   after_create :set_poll_id
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| 
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|   class << self
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|     def selectable_visibilities
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|       visibilities.keys - %w(direct limited)
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|     end
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| 
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|     def in_chosen_languages(account)
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|       where(language: nil).or where(language: account.chosen_languages)
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|     end
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| 
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|     def as_home_timeline(account)
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|       where(account: [account] + account.following).where(visibility: [:public, :unlisted, :private])
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|     end
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| 
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|     def as_direct_timeline(account, limit = 20, max_id = nil, since_id = nil, cache_ids = false)
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|       # direct timeline is mix of direct message from_me and to_me.
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|       # 2 queries are executed with pagination.
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|       # constant expression using arel_table is required for partial index
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| 
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|       # _from_me part does not require any timeline filters
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|       query_from_me = where(account_id: account.id)
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|                       .where(Status.arel_table[:visibility].eq(3))
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|                       .limit(limit)
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|                       .order('statuses.id DESC')
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| 
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|       # _to_me part requires mute and block filter.
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|       # FIXME: may we check mutes.hide_notifications?
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|       query_to_me = Status
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|                     .joins(:mentions)
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|                     .merge(Mention.where(account_id: account.id))
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|                     .where(Status.arel_table[:visibility].eq(3))
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|                     .limit(limit)
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|                     .order('mentions.status_id DESC')
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|                     .not_excluded_by_account(account)
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| 
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|       if max_id.present?
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|         query_from_me = query_from_me.where('statuses.id < ?', max_id)
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|         query_to_me = query_to_me.where('mentions.status_id < ?', max_id)
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|       end
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| 
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|       if since_id.present?
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|         query_from_me = query_from_me.where('statuses.id > ?', since_id)
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|         query_to_me = query_to_me.where('mentions.status_id > ?', since_id)
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|       end
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| 
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|       if cache_ids
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|         # returns array of cache_ids object that have id and updated_at
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|         (query_from_me.cache_ids.to_a + query_to_me.cache_ids.to_a).uniq(&:id).sort_by(&:id).reverse.take(limit)
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|       else
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|         # returns ActiveRecord.Relation
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|         items = (query_from_me.select(:id).to_a + query_to_me.select(:id).to_a).uniq(&:id).sort_by(&:id).reverse.take(limit)
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|         Status.where(id: items.map(&:id))
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|       end
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|     end
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| 
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|     def as_public_timeline(account = nil, local_only = false)
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|       query = timeline_scope(local_only).without_replies
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| 
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|       apply_timeline_filters(query, account, local_only)
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|     end
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| 
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|     def as_tag_timeline(tag, account = nil, local_only = false)
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|       query = timeline_scope(local_only).tagged_with(tag)
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| 
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|       apply_timeline_filters(query, account, local_only)
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|     end
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| 
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|     def as_outbox_timeline(account)
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|       where(account: account, visibility: :public)
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|     end
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| 
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|     def favourites_map(status_ids, account_id)
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|       Favourite.select('status_id').where(status_id: status_ids).where(account_id: account_id).each_with_object({}) { |f, h| h[f.status_id] = true }
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|     end
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| 
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|     def reblogs_map(status_ids, account_id)
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|       select('reblog_of_id').where(reblog_of_id: status_ids).where(account_id: account_id).reorder(nil).each_with_object({}) { |s, h| h[s.reblog_of_id] = true }
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|     end
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| 
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|     def mutes_map(conversation_ids, account_id)
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|       ConversationMute.select('conversation_id').where(conversation_id: conversation_ids).where(account_id: account_id).each_with_object({}) { |m, h| h[m.conversation_id] = true }
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|     end
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| 
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|     def pins_map(status_ids, account_id)
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|       StatusPin.select('status_id').where(status_id: status_ids).where(account_id: account_id).each_with_object({}) { |p, h| h[p.status_id] = true }
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|     end
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| 
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|     def reload_stale_associations!(cached_items)
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|       account_ids = []
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| 
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|       cached_items.each do |item|
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|         account_ids << item.account_id
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|         account_ids << item.reblog.account_id if item.reblog?
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|       end
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| 
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|       account_ids.uniq!
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| 
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|       return if account_ids.empty?
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| 
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|       accounts = Account.where(id: account_ids).includes(:account_stat).each_with_object({}) { |a, h| h[a.id] = a }
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| 
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|       cached_items.each do |item|
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|         item.account = accounts[item.account_id]
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|         item.reblog.account = accounts[item.reblog.account_id] if item.reblog?
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|       end
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|     end
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| 
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|     def permitted_for(target_account, account)
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|       visibility = [:public, :unlisted]
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| 
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|       if account.nil?
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|         where(visibility: visibility)
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|       elsif target_account.blocking?(account) # get rid of blocked peeps
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|         none
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|       elsif account.id == target_account.id # author can see own stuff
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|         all
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|       else
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|         # followers can see followers-only stuff, but also things they are mentioned in.
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|         # non-followers can see everything that isn't private/direct, but can see stuff they are mentioned in.
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|         visibility.push(:private) if account.following?(target_account)
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| 
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|         scope = left_outer_joins(:reblog)
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| 
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|         scope.where(visibility: visibility)
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|              .or(scope.where(id: account.mentions.select(:status_id)))
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|              .merge(scope.where(reblog_of_id: nil).or(scope.where.not(reblogs_statuses: { account_id: account.excluded_from_timeline_account_ids })))
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|       end
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|     end
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| 
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|     private
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| 
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|     def timeline_scope(local_only = false)
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|       starting_scope = local_only ? Status.local : Status
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|       starting_scope
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|         .with_public_visibility
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|         .without_reblogs
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|     end
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| 
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|     def apply_timeline_filters(query, account, local_only)
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|       if account.nil?
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|         filter_timeline_default(query)
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|       else
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|         filter_timeline_for_account(query, account, local_only)
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|       end
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|     end
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| 
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|     def filter_timeline_for_account(query, account, local_only)
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|       query = query.not_excluded_by_account(account)
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|       query = query.not_domain_blocked_by_account(account) unless local_only
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|       query = query.in_chosen_languages(account) if account.chosen_languages.present?
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|       query.merge(account_silencing_filter(account))
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|     end
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| 
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|     def filter_timeline_default(query)
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|       query.excluding_silenced_accounts
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|     end
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| 
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|     def account_silencing_filter(account)
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|       if account.silenced?
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|         including_myself = left_outer_joins(:account).where(account_id: account.id).references(:accounts)
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|         excluding_silenced_accounts.or(including_myself)
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|       else
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|         excluding_silenced_accounts
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|       end
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|     end
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|   end
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| 
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|   private
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| 
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|   def update_status_stat!(attrs)
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|     return if marked_for_destruction? || destroyed?
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| 
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|     record = status_stat || build_status_stat
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|     record.update(attrs)
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|   end
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| 
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|   def store_uri
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|     update_column(:uri, ActivityPub::TagManager.instance.uri_for(self)) if uri.nil?
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|   end
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| 
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|   def prepare_contents
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|     text&.strip!
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|     spoiler_text&.strip!
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|   end
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| 
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|   def set_reblog
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|     self.reblog = reblog.reblog if reblog? && reblog.reblog?
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|   end
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| 
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|   def set_poll_id
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|     update_column(:poll_id, poll.id) unless poll.nil?
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|   end
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| 
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|   def set_visibility
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|     self.visibility = reblog.visibility if reblog? && visibility.nil?
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|     self.visibility = (account.locked? ? :private : :public) if visibility.nil?
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|     self.sensitive  = false if sensitive.nil?
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|   end
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| 
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|   def set_conversation
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|     self.thread = thread.reblog if thread&.reblog?
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| 
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|     self.reply = !(in_reply_to_id.nil? && thread.nil?) unless reply
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| 
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|     if reply? && !thread.nil?
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|       self.in_reply_to_account_id = carried_over_reply_to_account_id
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|       self.conversation_id        = thread.conversation_id if conversation_id.nil?
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|     elsif conversation_id.nil?
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|       self.conversation = Conversation.new
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|     end
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|   end
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| 
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|   def carried_over_reply_to_account_id
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|     if thread.account_id == account_id && thread.reply?
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|       thread.in_reply_to_account_id
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|     else
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|       thread.account_id
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|     end
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|   end
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| 
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|   def set_local
 | |
|     self.local = account.local?
 | |
|   end
 | |
| 
 | |
|   def update_statistics
 | |
|     return unless public_visibility? || unlisted_visibility?
 | |
|     ActivityTracker.increment('activity:statuses:local')
 | |
|   end
 | |
| 
 | |
|   def increment_counter_caches
 | |
|     return if direct_visibility?
 | |
| 
 | |
|     account&.increment_count!(:statuses_count)
 | |
|     reblog&.increment_count!(:reblogs_count) if reblog?
 | |
|     thread&.increment_count!(:replies_count) if in_reply_to_id.present? && (public_visibility? || unlisted_visibility?)
 | |
|   end
 | |
| 
 | |
|   def decrement_counter_caches
 | |
|     return if direct_visibility? || marked_for_mass_destruction?
 | |
| 
 | |
|     account&.decrement_count!(:statuses_count)
 | |
|     reblog&.decrement_count!(:reblogs_count) if reblog?
 | |
|     thread&.decrement_count!(:replies_count) if in_reply_to_id.present? && (public_visibility? || unlisted_visibility?)
 | |
|   end
 | |
| 
 | |
|   def unlink_from_conversations
 | |
|     return unless direct_visibility?
 | |
| 
 | |
|     mentioned_accounts = mentions.includes(:account).map(&:account)
 | |
|     inbox_owners       = mentioned_accounts.select(&:local?) + (account.local? ? [account] : [])
 | |
| 
 | |
|     inbox_owners.each do |inbox_owner|
 | |
|       AccountConversation.remove_status(inbox_owner, self)
 | |
|     end
 | |
|   end
 | |
| end
 |