catstodon/app/models/domain_block.rb
Eugen Rochko 707ddf7808
Change domain blocks to automatically support subdomains (#11138)
* Change domain blocks to automatically support subdomains

If a more authoritative domain is blocked (example.com), then the
same block will be applied to a subdomain (foo.example.com)

* Match subdomains of existing accounts when blocking/unblocking domains

* Improve code style
2019-06-22 00:13:10 +02:00

69 lines
2 KiB
Ruby

# frozen_string_literal: true
# == Schema Information
#
# Table name: domain_blocks
#
# id :bigint(8) not null, primary key
# domain :string default(""), not null
# created_at :datetime not null
# updated_at :datetime not null
# severity :integer default("silence")
# reject_media :boolean default(FALSE), not null
# reject_reports :boolean default(FALSE), not null
#
class DomainBlock < ApplicationRecord
include DomainNormalizable
enum severity: [:silence, :suspend, :noop]
validates :domain, presence: true, uniqueness: true
has_many :accounts, foreign_key: :domain, primary_key: :domain
delegate :count, to: :accounts, prefix: true
scope :matches_domain, ->(value) { where(arel_table[:domain].matches("%#{value}%")) }
class << self
def suspend?(domain)
!!rule_for(domain)&.suspend?
end
def silence?(domain)
!!rule_for(domain)&.silence?
end
def reject_media?(domain)
!!rule_for(domain)&.reject_media?
end
def reject_reports?(domain)
!!rule_for(domain)&.reject_reports?
end
alias blocked? suspend?
def rule_for(domain)
return if domain.blank?
uri = Addressable::URI.new.tap { |u| u.host = domain.gsub(/[\/]/, '') }
segments = uri.normalized_host.split('.')
variants = segments.map.with_index { |_, i| segments[i..-1].join('.') }
where(domain: variants[0..-2]).order(Arel.sql('char_length(domain) desc')).first
end
end
def stricter_than?(other_block)
return true if suspend?
return false if other_block.suspend? && (silence? || noop?)
return false if other_block.silence? && noop?
(reject_media || !other_block.reject_media) && (reject_reports || !other_block.reject_reports)
end
def affected_accounts_count
scope = suspend? ? accounts.where(suspended_at: created_at) : accounts.where(silenced_at: created_at)
scope.count
end
end