forked from fedi/mastodon
40e5d2303b
to_s method of HTTP::Response keeps blocking while it receives the whole content, no matter how it is big. This means it may waste time to receive unacceptably large files. It may also consume memory and disk in the process. This solves the inefficency by checking response length while receiving.
378 lines
12 KiB
Ruby
378 lines
12 KiB
Ruby
# frozen_string_literal: true
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# == Schema Information
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#
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# Table name: accounts
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#
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# id :integer not null, primary key
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# username :string default(""), not null
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# domain :string
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# secret :string default(""), not null
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# private_key :text
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# public_key :text default(""), not null
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# remote_url :string default(""), not null
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# salmon_url :string default(""), not null
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# hub_url :string 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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# note :text default(""), not null
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# display_name :string default(""), not null
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# uri :string default(""), not null
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# url :string
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# avatar_file_name :string
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# avatar_content_type :string
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# avatar_file_size :integer
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# avatar_updated_at :datetime
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# header_file_name :string
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# header_content_type :string
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# header_file_size :integer
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# header_updated_at :datetime
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# avatar_remote_url :string
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# subscription_expires_at :datetime
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# silenced :boolean default(FALSE), not null
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# suspended :boolean default(FALSE), not null
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# locked :boolean default(FALSE), not null
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# header_remote_url :string default(""), not null
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# statuses_count :integer default(0), not null
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# followers_count :integer default(0), not null
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# following_count :integer default(0), not null
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# last_webfingered_at :datetime
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# inbox_url :string default(""), not null
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# outbox_url :string default(""), not null
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# shared_inbox_url :string default(""), not null
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# followers_url :string default(""), not null
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# protocol :integer default("ostatus"), not null
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# memorial :boolean default(FALSE), not null
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# moved_to_account_id :integer
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# featured_collection_url :string
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#
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class Account < ApplicationRecord
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USERNAME_RE = /[a-z0-9_]+([a-z0-9_\.]+[a-z0-9_]+)?/i
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MENTION_RE = /(?<=^|[^\/[:word:]])@((#{USERNAME_RE})(?:@[a-z0-9\.\-]+[a-z0-9]+)?)/i
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include AccountAvatar
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include AccountFinderConcern
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include AccountHeader
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include AccountInteractions
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include Attachmentable
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include Paginable
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enum protocol: [:ostatus, :activitypub]
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# Local users
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has_one :user, inverse_of: :account
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validates :username, presence: true
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# Remote user validations
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validates :username, uniqueness: { scope: :domain, case_sensitive: true }, if: -> { !local? && will_save_change_to_username? }
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# Local user validations
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validates :username, format: { with: /\A[a-z0-9_]+\z/i }, length: { maximum: 30 }, if: -> { local? && will_save_change_to_username? }
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validates_with UniqueUsernameValidator, if: -> { local? && will_save_change_to_username? }
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validates_with UnreservedUsernameValidator, if: -> { local? && will_save_change_to_username? }
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validates :display_name, length: { maximum: 30 }, if: -> { local? && will_save_change_to_display_name? }
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validates :note, length: { maximum: 160 }, if: -> { local? && will_save_change_to_note? }
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# Timelines
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has_many :stream_entries, inverse_of: :account, dependent: :destroy
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has_many :statuses, inverse_of: :account, dependent: :destroy
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has_many :favourites, inverse_of: :account, dependent: :destroy
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has_many :mentions, inverse_of: :account, dependent: :destroy
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has_many :notifications, inverse_of: :account, dependent: :destroy
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# Pinned statuses
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has_many :status_pins, inverse_of: :account, dependent: :destroy
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has_many :pinned_statuses, -> { reorder('status_pins.created_at DESC') }, through: :status_pins, class_name: 'Status', source: :status
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# Media
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has_many :media_attachments, dependent: :destroy
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# PuSH subscriptions
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has_many :subscriptions, dependent: :destroy
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# Report relationships
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has_many :reports
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has_many :targeted_reports, class_name: 'Report', foreign_key: :target_account_id
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# Moderation notes
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has_many :account_moderation_notes, dependent: :destroy
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has_many :targeted_moderation_notes, class_name: 'AccountModerationNote', foreign_key: :target_account_id, dependent: :destroy
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# Lists
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has_many :list_accounts, inverse_of: :account, dependent: :destroy
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has_many :lists, through: :list_accounts
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# Account migrations
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belongs_to :moved_to_account, class_name: 'Account', optional: true
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scope :remote, -> { where.not(domain: nil) }
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scope :local, -> { where(domain: nil) }
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scope :without_followers, -> { where(followers_count: 0) }
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scope :with_followers, -> { where('followers_count > 0') }
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scope :expiring, ->(time) { remote.where.not(subscription_expires_at: nil).where('subscription_expires_at < ?', time) }
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scope :partitioned, -> { order('row_number() over (partition by domain)') }
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scope :silenced, -> { where(silenced: true) }
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scope :suspended, -> { where(suspended: true) }
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scope :recent, -> { reorder(id: :desc) }
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scope :alphabetic, -> { order(domain: :asc, username: :asc) }
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scope :by_domain_accounts, -> { group(:domain).select(:domain, 'COUNT(*) AS accounts_count').order('accounts_count desc') }
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scope :matches_username, ->(value) { where(arel_table[:username].matches("#{value}%")) }
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scope :matches_display_name, ->(value) { where(arel_table[:display_name].matches("#{value}%")) }
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scope :matches_domain, ->(value) { where(arel_table[:domain].matches("%#{value}%")) }
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delegate :email,
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:current_sign_in_ip,
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:current_sign_in_at,
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:confirmed?,
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:admin?,
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:moderator?,
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:staff?,
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:locale,
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to: :user,
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prefix: true,
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allow_nil: true
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delegate :filtered_languages, to: :user, prefix: false, allow_nil: true
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def local?
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domain.nil?
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end
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def moved?
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moved_to_account_id.present?
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end
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def acct
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local? ? username : "#{username}@#{domain}"
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end
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def local_username_and_domain
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"#{username}@#{Rails.configuration.x.local_domain}"
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end
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def to_webfinger_s
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"acct:#{local_username_and_domain}"
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end
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def subscribed?
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subscription_expires_at.present?
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end
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def possibly_stale?
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last_webfingered_at.nil? || last_webfingered_at <= 1.day.ago
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end
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def refresh!
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return if local?
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ResolveAccountService.new.call(acct)
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end
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def unsuspend!
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transaction do
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user&.enable! if local?
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update!(suspended: false)
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end
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end
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def memorialize!
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transaction do
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user&.disable! if local?
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update!(memorial: true)
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end
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end
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def keypair
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@keypair ||= OpenSSL::PKey::RSA.new(private_key || public_key)
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end
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def magic_key
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modulus, exponent = [keypair.public_key.n, keypair.public_key.e].map do |component|
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result = []
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until component.zero?
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result << [component % 256].pack('C')
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component >>= 8
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end
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result.reverse.join
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end
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(['RSA'] + [modulus, exponent].map { |n| Base64.urlsafe_encode64(n) }).join('.')
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end
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def subscription(webhook_url)
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@subscription ||= OStatus2::Subscription.new(remote_url, secret: secret, webhook: webhook_url, hub: hub_url)
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end
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def save_with_optional_media!
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save!
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rescue ActiveRecord::RecordInvalid
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self.avatar = nil
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self.header = nil
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self[:avatar_remote_url] = ''
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self[:header_remote_url] = ''
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save!
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end
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def object_type
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:person
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end
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def to_param
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username
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end
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def excluded_from_timeline_account_ids
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Rails.cache.fetch("exclude_account_ids_for:#{id}") { blocking.pluck(:target_account_id) + blocked_by.pluck(:account_id) + muting.pluck(:target_account_id) }
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end
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def excluded_from_timeline_domains
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Rails.cache.fetch("exclude_domains_for:#{id}") { domain_blocks.pluck(:domain) }
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end
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def preferred_inbox_url
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shared_inbox_url.presence || inbox_url
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end
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class << self
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def readonly_attributes
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super - %w(statuses_count following_count followers_count)
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end
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def domains
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reorder(nil).pluck('distinct accounts.domain')
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end
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def inboxes
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urls = reorder(nil).where(protocol: :activitypub).pluck("distinct coalesce(nullif(accounts.shared_inbox_url, ''), accounts.inbox_url)")
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DeliveryFailureTracker.filter(urls)
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end
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def triadic_closures(account, limit: 5, offset: 0)
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sql = <<-SQL.squish
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WITH first_degree AS (
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SELECT target_account_id
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FROM follows
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WHERE account_id = :account_id
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)
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SELECT accounts.*
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FROM follows
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INNER JOIN accounts ON follows.target_account_id = accounts.id
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WHERE
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account_id IN (SELECT * FROM first_degree)
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AND target_account_id NOT IN (SELECT * FROM first_degree)
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AND target_account_id NOT IN (:excluded_account_ids)
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AND accounts.suspended = false
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GROUP BY target_account_id, accounts.id
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ORDER BY count(account_id) DESC
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OFFSET :offset
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LIMIT :limit
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SQL
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excluded_account_ids = account.excluded_from_timeline_account_ids + [account.id]
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find_by_sql(
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[sql, { account_id: account.id, excluded_account_ids: excluded_account_ids, limit: limit, offset: offset }]
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)
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end
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def search_for(terms, limit = 10)
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textsearch, query = generate_query_for_search(terms)
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sql = <<-SQL.squish
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SELECT
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accounts.*,
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ts_rank_cd(#{textsearch}, #{query}, 32) AS rank
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FROM accounts
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WHERE #{query} @@ #{textsearch}
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AND accounts.suspended = false
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AND accounts.moved_to_account_id IS NULL
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ORDER BY rank DESC
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LIMIT ?
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SQL
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find_by_sql([sql, limit])
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end
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def advanced_search_for(terms, account, limit = 10, following = false)
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textsearch, query = generate_query_for_search(terms)
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if following
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sql = <<-SQL.squish
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WITH first_degree AS (
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SELECT target_account_id
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FROM follows
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WHERE account_id = ?
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)
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SELECT
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accounts.*,
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(count(f.id) + 1) * ts_rank_cd(#{textsearch}, #{query}, 32) AS rank
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FROM accounts
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LEFT OUTER JOIN follows AS f ON (accounts.id = f.account_id AND f.target_account_id = ?) OR (accounts.id = f.target_account_id AND f.account_id = ?)
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WHERE accounts.id IN (SELECT * FROM first_degree)
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AND #{query} @@ #{textsearch}
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AND accounts.suspended = false
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AND accounts.moved_to_account_id IS NULL
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GROUP BY accounts.id
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ORDER BY rank DESC
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LIMIT ?
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SQL
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find_by_sql([sql, account.id, account.id, account.id, limit])
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else
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sql = <<-SQL.squish
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SELECT
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accounts.*,
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(count(f.id) + 1) * ts_rank_cd(#{textsearch}, #{query}, 32) AS rank
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FROM accounts
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LEFT OUTER JOIN follows AS f ON (accounts.id = f.account_id AND f.target_account_id = ?) OR (accounts.id = f.target_account_id AND f.account_id = ?)
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WHERE #{query} @@ #{textsearch}
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AND accounts.suspended = false
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AND accounts.moved_to_account_id IS NULL
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GROUP BY accounts.id
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ORDER BY rank DESC
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LIMIT ?
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SQL
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find_by_sql([sql, account.id, account.id, limit])
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end
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end
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private
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def generate_query_for_search(terms)
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terms = Arel.sql(connection.quote(terms.gsub(/['?\\:]/, ' ')))
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textsearch = "(setweight(to_tsvector('simple', accounts.display_name), 'A') || setweight(to_tsvector('simple', accounts.username), 'B') || setweight(to_tsvector('simple', coalesce(accounts.domain, '')), 'C'))"
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query = "to_tsquery('simple', ''' ' || #{terms} || ' ''' || ':*')"
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[textsearch, query]
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end
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end
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before_create :generate_keys
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before_validation :normalize_domain
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before_validation :prepare_contents, if: :local?
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private
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def prepare_contents
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display_name&.strip!
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note&.strip!
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end
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def generate_keys
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return unless local?
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keypair = OpenSSL::PKey::RSA.new(Rails.env.test? ? 512 : 2048)
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self.private_key = keypair.to_pem
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self.public_key = keypair.public_key.to_pem
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end
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def normalize_domain
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return if local?
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self.domain = TagManager.instance.normalize_domain(domain)
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end
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end
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