nyastodon/app/models/concerns/account_finder_concern.rb
Claire acdeb162b8
Create instance actor if it hasn't been properly seeded (#15693)
An uncommon but somewhat difficult to digagnose issue is dealing with
improperly-seeded databases. In such cases, instance-signed fetches will
fail with a ActiveRecord::RecordNotFound error, usually caught and handled
as generic 404, leading people to think the remote resource itself has not
been found, while it's the local instance actor that does not exist.

This commit changes the code so that failure to find the instance actor
automatically creates a new one, so that improperly-seeded databases do
not cause any issue.
2021-02-09 18:12:54 +01:00

64 lines
1.5 KiB
Ruby

# frozen_string_literal: true
module AccountFinderConcern
extend ActiveSupport::Concern
class_methods do
def find_local!(username)
find_local(username) || raise(ActiveRecord::RecordNotFound)
end
def find_remote!(username, domain)
find_remote(username, domain) || raise(ActiveRecord::RecordNotFound)
end
def representative
Account.find(-99)
rescue ActiveRecord::RecordNotFound
Account.create!(id: -99, actor_type: 'Application', locked: true, username: Rails.configuration.x.local_domain)
end
def find_local(username)
find_remote(username, nil)
end
def find_remote(username, domain)
AccountFinder.new(username, domain).account
end
end
class AccountFinder
attr_reader :username, :domain
def initialize(username, domain)
@username = username
@domain = domain
end
def account
scoped_accounts.order(id: :asc).take
end
private
def scoped_accounts
Account.unscoped.tap do |scope|
scope.merge! with_usernames
scope.merge! matching_username
scope.merge! matching_domain
end
end
def with_usernames
Account.where.not(Account.arel_table[:username].lower.eq '')
end
def matching_username
Account.where(Account.arel_table[:username].lower.eq username.to_s.downcase)
end
def matching_domain
Account.where(Account.arel_table[:domain].lower.eq(domain.nil? ? nil : domain.to_s.downcase))
end
end
end